CN217347564U - Seat height adjuster and seat height adjusting device - Google Patents
Seat height adjuster and seat height adjusting device Download PDFInfo
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- CN217347564U CN217347564U CN202221513696.4U CN202221513696U CN217347564U CN 217347564 U CN217347564 U CN 217347564U CN 202221513696 U CN202221513696 U CN 202221513696U CN 217347564 U CN217347564 U CN 217347564U
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- groove
- seat height
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- sliding block
- limiting
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Abstract
The utility model discloses a seat height adjuster and a seat height adjusting device, which comprises a speed reducing unit and an outer shell (2), wherein the speed reducing unit comprises a slide block (522), the slide block (522) is provided with two limit bulges (522a) in the first direction, the outer shell (2) is provided with a first mounting groove (2a), the slide block (522) is positioned in the first mounting groove (2a) and can only move along the first direction, the outer shell (2) is made of plastics, the seat height adjuster also comprises a metal baffle ring (7), the outer shell (2) is provided with a second mounting groove (2b) at the opening end of the first mounting groove (2a), the metal baffle ring (7) is provided with baffle parts at the two ends of the first direction, the metal baffle ring (7) is arranged in the second mounting groove (2b), and partially coincide with slider (522) at the depth direction, the fender portion is used for spacing the motion of spacing arch (522a) second direction, and first direction and second direction are perpendicular to each other. The utility model discloses avoid shell body conquassation inefficacy, promote product property ability.
Description
Technical Field
The utility model relates to a seat technical field, concretely relates to seat increaser and seat height adjusting device.
Background
The lifting function of the automobile seat can provide comfortable riding experience for different users, and the seat heightening device is used for achieving lifting of the seat.
However, the strength of the shell of the seat height adjuster is relatively low, and the shell can break and fail when subjected to impact load or large-torque static load, about 200Nm, and has a great threat to the safety of passengers.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a ware is increaseed to seat avoids the shell body stress concentration and conquassation inefficacy to appear, promotes the intensity and the durability of product, improves the seat and takes the security.
In order to solve the above technical problems, the present invention provides a seat height adjuster, comprising a speed reduction unit and an outer housing, wherein the speed reduction unit comprises a slider, the slider is provided with two oppositely extending limiting protrusions in a first direction, a first mounting groove is arranged inside the outer housing, the slider is located in the first mounting groove and can only move in the first direction in the first mounting groove in an installation state, the outer housing is made of a plastic material,
still include the metal and keep off the ring, the shell body is inside the open end of first mounting groove is provided with the second mounting groove, the metal keeps off the ring and has fender portion at first direction both ends, the metal keep off ring fixed mounting in the second mounting groove, and with the slider is at the partial coincidence of degree of depth direction, fender portion is used for corresponding spacing arch is spacing in the motion of second direction, first direction with second direction mutually perpendicular.
The utility model discloses seat heightening device adds the metal retaining ring to carry out spacing to the motion of the corresponding spacing protrusion in the second direction, when the load is bigger, the outer shell deforms to abut against the spacing protrusion and the retaining part, the load is born by the outer shell made of plastic material and the metal retaining ring together, and the outer shell is prevented from breaking and losing efficacy due to bearing too large load; meanwhile, the metal baffle ring is of an annular structure and is arranged inside the outer shell, the contact area of the metal baffle ring and the outer shell is increased, stress concentration and crushing failure of the outer shell are avoided, the strength and durability of a product are improved, and the seat riding safety is improved.
Optionally, the metal baffle ring protrudes outwards at two ends in the first direction, a limiting groove is formed in the metal baffle ring, the limiting protruding portion is inserted into the limiting groove, a preset gap is formed between the limiting protrusion and a corresponding side wall of the limiting groove in the second direction, and the protrusion is the baffle portion.
Optionally, the metal baffle ring protrudes inwards at two ends in the first direction, the limiting protrusion is provided with a notch with an outer end opening and extending along the first direction, the protrusion is inserted into the notch, a preset gap is formed between the protrusion and the corresponding side wall of the notch in the second direction, and the protrusion is the baffle part.
Optionally, the second mounting groove is in interference fit with the metal baffle ring.
Optionally, the metal baffle ring and the slider have the same thickness.
Optionally, both ends of the sliding block in the second direction are protruded outwards and form a limiting groove inside, both ends of the metal baffle ring in the second direction are protruded outwards and form a receiving groove inside,
when the limiting protrusions can be correspondingly inserted into the accommodating grooves, the protrusions at two ends of the second direction of the sliding block can be located between the inner walls of the metal retaining rings.
Optionally, the distance between the outer end walls of the limiting protrusions at the two ends of the sliding block in the first direction is not greater than the distance between the inner end walls of the accommodating grooves at the two ends of the metal baffle ring in the second direction,
the width of the limiting protrusion is not more than that of the accommodating groove,
and the distance between the convex outer end walls at the two ends of the sliding block in the second direction is not greater than the inner diameter of the metal retaining ring.
Optionally, both ends of the sliding block in the second direction protrude outwards, a limiting groove is formed inside the sliding block, both ends of the metal baffle ring in the second direction protrude outwards, a containing groove is formed inside the metal baffle ring, a first notch is arranged at an opening end of the limiting groove, a second notch is arranged at an opening end of the containing groove, and in a working state, the protrusion of the metal baffle ring in the second direction is located in the second notch,
the limiting protrusions can be correspondingly inserted into the accommodating grooves, and the protrusions at two ends of the second direction of the sliding block can be located inside the corresponding first notches.
Optionally, the distance between the outer end walls of the limiting protrusions at the two ends of the sliding block in the first direction is not greater than the distance between the inner end walls of the accommodating grooves at the two ends of the metal baffle ring in the second direction,
the width of the limiting protrusion is not more than that of the accommodating groove,
the width of the two ends of the sliding block protruding in the second direction is not larger than that of the first notch, and the distance between the two protruding outer end walls of the two ends of the sliding block protruding in the second direction is not larger than the minimum distance between the two protruding inner end walls of the first notch in the protruding width range.
The utility model also provides a seat height adjusting device, including setting up in the link mechanism of seat both sides to and aforementioned seat height adjuster, seat height adjuster is used for the drive link mechanism goes up and down, in order to drive the seat goes up and down.
The utility model discloses seat height adjusting device, including aforementioned seat heightening ware, consequently have with aforementioned seat heightening ware the same technological effect, no longer give unnecessary details here.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a seat height adjuster provided in the present invention;
FIG. 2 is a fragmentary view of FIG. 1;
FIG. 3 is a schematic view of the structure of FIG. 1 from another angle;
FIG. 4 is a schematic view of the seat riser of FIG. 1 with the slide and metal retainer installed inside the outer shell;
FIG. 5 is a top view of FIG. 4;
FIG. 6 is a schematic view of the structure of FIG. 4 taken in a first direction;
FIG. 7 is a fragmentary view of FIG. 4;
FIG. 8 is a schematic view of the metal baffle ring shown in FIG. 4;
FIG. 9 is a first layout view of the slider and the metal retainer ring of FIG. 4 during machining;
FIG. 10 is a second layout view of the slide and metal retainer ring of FIG. 4 during machining;
FIG. 11 is a schematic view of a second configuration of the slide and metal retainer of FIG. 1 in an installed condition;
FIG. 12 is a drawing showing the arrangement of the slider and the metal retainer ring shown in FIG. 11 during machining;
wherein the reference numerals in fig. 1-12 are explained as follows:
1-an output gear;
2-an outer shell; 2 a-a first mounting groove; 2 b-a second mounting groove;
3-a housing cover;
4-an output shaft;
511-a worm wheel; 521-a drive shaft; 522-a slide block; 522 a-limit projection; 522 b-limit groove; 523-planetary internal gear; 524-planet external gear; 524 a-boss;
6-a lining;
7-a metal baffle ring; 7 a-a limit groove; 7 b-accommodating tank.
8-a limiting sleeve;
9-screw.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention is further described in detail with reference to the accompanying drawings and specific embodiments.
The terms "first," "second," and the like, herein are used for convenience in describing two or more structures or components that are identical or similar in structure and/or function and do not denote any particular limitation in order and/or importance.
Herein, the opposite side walls of the housing body 2 and the housing cover 3 are "inner walls".
Referring to fig. 1 to 3, fig. 1 is a schematic structural view of a seat height adjuster according to an embodiment of the present invention; FIG. 2 is a fragmentary view of FIG. 1; fig. 3 is a schematic structural view of fig. 1 from another angle.
The utility model provides a seat height adjuster for the link mechanism of drive seat both sides goes up and down, thereby drives the seat and goes up and down, realizes the position control of seat on the direction of height.
The seat height adjuster specifically includes driving motor, reduction unit and output gear 1 that the transmission connects in proper order, still includes shell body 2 and shell cover 3, and shell cover 3 is fixed in the seat curb plate to realize the fixed of seat height adjuster, shell body 2 and shell cover 3 are fixed in an organic whole through screw 9, enclose between the two and close and form accommodation space, and the reduction unit arranges in accommodation space, and driving motor is fixed in the outside of shell body 2.
Wherein, driving motor has the motor shaft, and the motor shaft still includes output shaft 4 as the input shaft of speed reduction unit, and output shaft 4 arranges along the direction of perpendicular to motor output shaft, and the first end cooperates with the hole characteristic of shell body 2, and shell cover 3 is worn out to the second end to it is fixed through 8 joint of stop collar. The speed reduction unit comprises a worm and gear speed reduction mechanism and a small tooth difference speed reduction mechanism, wherein a worm in the worm and gear speed reduction mechanism is fixedly connected with a motor shaft, so that the worm can rotate under the driving of the motor shaft, and a worm wheel 511 in the worm and gear speed reduction mechanism is rotatably arranged on the output shaft 4, so that the worm wheel 511 can rotate around the axial direction of the output shaft 4 under the driving of the worm to realize primary speed reduction.
The small tooth difference speed reducing mechanism specifically comprises a driving shaft 521, a sliding block 522, a planetary inner gear 523 and a planetary outer gear 524, wherein the driving shaft 521 is fixed at one end of the worm gear 511, which faces away from the driving motor, the driving shaft 521 and the worm gear 511 are eccentrically arranged, the eccentric quantity is equal to the eccentric quantity required by the small tooth difference mechanism, the output shaft 4 penetrates through the driving shaft 521, and the output shaft 4 is not concentric with the driving shaft 521, so that when the worm gear 511 rotates, the axis of the driving shaft 521 can do circular motion by taking the axis of the output shaft 4 as the center of a circle and the eccentric quantity as the radius;
the sliding block 522 is located between the external planetary gear 524 and the worm wheel 511, is of an annular structure, the outer peripheral wall of the sliding block 522 is provided with two limiting protrusions 522a extending in opposite directions in a first direction, protrudes outwards in a second direction, and forms two limiting grooves 522b arranged oppositely, the first direction and the second direction are perpendicular to each other, a first mounting groove 2a matched with the sliding block 522 is arranged inside the outer shell 2, in a mounting state, the output shaft 4 penetrates through the sliding block 522, the sliding block 522 is mounted in the first mounting groove 2a, the mounting groove 2a limits the sliding block 522 in the circumferential direction, and the sliding block 522 can only move in the first direction;
the external planetary gear 524 has a central hole in the middle for the driving shaft 521 to pass through, and two protrusions 524a are further disposed on the side wall of the external planetary gear 524 facing the slider 522, the protrusions 524a are correspondingly engaged with the limit recesses 522b on the inner peripheral wall of the slider 522 one by one, the external teeth of the external planetary gear 524 are engaged with the internal teeth of the internal planetary gear 523, and the internal planetary gear 523 is rotatably sleeved on the output shaft 4 and disposed in the internal recess of the housing cover 3.
Therefore, the protruding portion 524a and the limiting groove 522b are correspondingly matched to play a role in circumferential limiting, so that the external planetary gear 524 can only slide along the extending direction of the limiting groove 522b relative to the slider 522, i.e., slide along the second direction, but cannot rotate, and because the slider 522 can slide in the first direction, the external planetary gear 524 can move circularly under the driving of the driving shaft 521, and is always meshed with the internal planetary gear 523 to drive the internal planetary gear 523 to rotate, thereby realizing secondary speed reduction.
To sum up, the utility model discloses the power transmission process of seat height adjuster as follows:
a motor shaft of the driving motor rotates to drive the worm to rotate synchronously, and the worm is meshed with the worm wheel 511, so that power is transmitted to the worm wheel 511 to realize primary speed reduction;
because the driving shaft 521 and the worm wheel 511 are fixed into a whole and are eccentrically arranged, the driving shaft 521 performs circular motion, and simultaneously drives the external planetary gear 524 to perform circular motion, and because the external planetary gear 524 is always meshed with the internal planetary gear 523, the internal planetary gear 523 is driven to rotate, so that secondary speed reduction is realized;
the planetary ring gear 523 is fixedly connected to the output gear 1, and therefore, transmits power to the output gear 1 to rotate the output gear 1.
It will be appreciated that impact load or high torque static load (about 200Nm) from the seat is inevitably transmitted from the output gear 1 to the slider 522, the slider 522 is forced to move (move or rotate) in the second direction, and the two limit protrusions 522a from the slider 522 are transmitted to the outer housing 2, and the outer housing 2 is usually made of plastic material for cost, light weight and noise, so that the outer housing 2 may break and fail, and thus, the safety of passengers is greatly threatened.
Referring to fig. 4-8, fig. 4 is a schematic structural view of the seat height adjuster of fig. 1, wherein the sliding block and the metal retaining ring are mounted inside the outer shell; FIG. 5 is a top view of FIG. 4; FIG. 6 is a schematic view of the structure of FIG. 4 taken in a first direction; FIG. 7 is a fragmentary view of FIG. 4; fig. 8 is a schematic structural view of the metal baffle ring in fig. 4.
The utility model discloses the seat height adjuster still includes metal fender ring 7, 2 inside open ends at first mounting groove 2a of shell body are provided with second mounting groove 2b, the metal keeps off ring 7 at the outside arch in the both ends of first direction, and form spacing groove 7a in inside, 7 fixed mounting of metal fender ring in second mounting groove 2b, and with slider 522 at the partial coincidence of degree of depth direction, spacing protruding 522a part cartridge is inside spacing groove 7a, spacing protruding 522a and spacing groove 7a second direction correspond between the lateral wall and have the clearance of predetermineeing, a motion for spacing protruding 522a is carried on spacingly at the second direction.
The "depth direction" is the thickness direction of the metal retainer 7 and the slider 522.
The "preset gap" referred to herein is set to: when the load applied to the outer shell 2 reaches a preset value (lower than the load applied when the outer shell 2 is broken and fails), the outer shell 2 deforms until the limiting groove 7a abuts against the corresponding side wall of the limiting protrusion 522a in the second direction, and the metal baffle ring 7 and the outer shell 2 jointly bear the load.
The utility model discloses seat heightening device, when load is less, has the clearance between the corresponding lateral wall of spacing groove 7a and spacing arch 522a second direction, and the load only is born by the shell body 2 of plastics material, guarantees the smoothness nature of seat height adjustment operation, reduces the noise, improves the seat and takes the travelling comfort; when the load is large, the outer shell 2 deforms until the limiting groove 7a is abutted against the corresponding side wall of the limiting protrusion 522a, and the load is jointly borne by the outer shell 2 made of plastic and the metal baffle ring 7, so that the outer shell 2 is prevented from breaking and losing efficacy due to the fact that the outer shell bears the overlarge load; simultaneously, the metal keeps off ring 7 and is the loop configuration to install inside shell body 2, with the increase of 2 area of contact of shell body, avoid shell body 2 to appear stress concentration and crushing inefficacy, promote the intensity and the durability of product, improve the seat and take the security.
It can be understood that the metal baffle ring 7 is not limited to the above embodiment as long as the metal baffle ring 7 can limit the movement of the limiting protrusion 522a in the second direction, for example, two ends of the metal baffle ring 7 in the first direction may also protrude inward, the limiting protrusion 522a is provided with an outer end opening and a notch extending along the first direction, the protrusion is inserted into the notch, and a preset gap is formed between the protrusion and the corresponding sidewall of the notch in the second direction.
In this embodiment, the second mounting groove 2b and the metal baffle ring 7 are in interference fit, and the requirement for the assembly precision is reduced by using the elastic deformation of the plastic material of the outer housing 2.
In addition, the thickness of the metal baffle ring 7 is the same as that of the sliding block 522, so that the metal baffle ring 7 and the sliding block 522 can be formed by the same plate material, and the processing is convenient.
In order to further save the plate and reduce the processing cost, the structures of the metal baffle ring 7 and the sliding block 522 can be improved, and the processing is completed by adopting a sleeve punching process.
Referring to fig. 9-10, fig. 9 is a first layout view of the slider and the metal retainer ring shown in fig. 4 during machining; FIG. 10 is a second layout view of the slider and metal retainer ring of FIG. 4 during machining.
In the utility model, the two ends of the sliding block 522 in the second direction are protruded outwards, and limit grooves 522b are formed in the inner part, the two ends of the metal baffle ring 7 in the second direction are protruded outwards, and accommodating grooves 7b are formed in the inner part,
the distance e between the outer end walls of the limiting protrusions 522a at the two ends of the sliding block 522 in the first direction is not greater than the distance f between the inner end walls of the receiving grooves 7b at the two ends of the metal baffle ring 7 in the second direction, specifically, the distance between the outer end walls of the limiting protrusions 522a at the two ends of the sliding block 522 in the first direction is smaller than the distance between the inner end walls of the receiving grooves 7b at the two ends of the metal baffle ring 7 in the second direction, where e is less than f, as shown in fig. 9; or, the distance between the outer end walls of the limiting protrusions 522a at the two ends in the first direction of the sliding block 522 is equal to the distance between the inner end walls of the accommodating grooves 7b at the two ends in the second direction of the metal baffle ring 7, where e is f, as shown in fig. 10;
the width c of the limit projection 522a is not more than the width d of the accommodating groove 7 b;
the distance a between the outer end walls of the protrusions at both ends of the slider 522 in the second direction is not greater than the inner diameter b of the metal retainer 7.
Therefore, in the processing process, the metal baffle ring 7 and the sliding block 522 can adopt two sample arrangement modes of fig. 9 and fig. 10, and adopt a sleeve punching process, thereby saving materials and reducing the processing cost.
Referring to fig. 11-12, fig. 11 is a schematic structural view illustrating a second structure of the slider and the metal baffle ring in fig. 1 in an assembled state; FIG. 12 is a drawing showing the arrangement of the slider and the metal retainer ring in FIG. 11 during machining.
In this embodiment, the two ends of the sliding block 522 in the second direction protrude outwards and form a limiting groove 522b therein, the two ends of the metal baffle ring 7 in the second direction protrude outwards and form a receiving groove 7b therein, the open end of the limiting groove 7a is provided with a first notch 7c, the open end of the receiving groove 7b is provided with a second notch 7d, and in an operating state, the protrusion of the metal baffle ring 7 in the second direction is located in the second notch 7d, as shown in fig. 11.
Meanwhile, the limiting protrusion 522a can be inserted into the accommodating groove 7b correspondingly, and the protrusions at the two ends of the second direction of the sliding block 522 can be located inside the corresponding first notch 7 c. Specifically, as shown in fig. 12, the distance e between the outer end walls of the first-direction both-end limiting protrusions 522a of the sliding block 522 is not greater than the distance f between the inner end walls of the second-direction both-end receiving grooves 7b of the metal baffle ring 7,
the width c of the stopper projection 522a is not greater than the width d of the receiving groove 7b,
the width of the protrusions h at the two ends of the sliding block 522 in the second direction is not greater than the width i of the first notch 7c, and the distance a between the outer end walls of the protrusions at the two ends of the sliding block 522 in the second direction is not greater than the minimum distance g between the inner end walls of the first notches 7c at the two ends within the protrusion width range.
Therefore, in the machining process, the metal baffle ring 7 and the sliding block 522 can adopt the stock layout mode of FIG. 12 and the sleeve punching process, so that the material is saved and the cost is reduced.
In this embodiment, the inner end wall of the first notch 7c is arc-shaped, and it can be understood that the inner end wall of the first notch 7c can also be plane, and in this case, the distance a between the two protruding outer end walls of the two ends of the slider 522 in the second direction should be no greater than the distance between the inner end walls of the first notches 7c at the two ends.
The utility model also provides a seat height adjusting device, including setting up in the link mechanism of seat both sides to and aforementioned seat heightening device, seat heightening device is used for driving link mechanism to go up and down, in order to drive the seat and go up and down.
The utility model discloses seat height adjusting device, including aforementioned seat heightening ware, consequently have with aforementioned seat heightening ware the same technological effect, no longer give unnecessary details here.
It is right above the utility model provides a seat height adjuster and seat height adjusting device introduces in detail, and it is right to have used specific individual example herein the utility model discloses a principle and implementation mode are elucidated, and the description of above embodiment is only used for helping understanding the utility model discloses a method and core thought thereof. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. A seat height adjuster is characterized by comprising a speed reduction unit and an outer shell (2), wherein the speed reduction unit comprises a sliding block (522), the sliding block (522) is provided with two limiting protrusions (522a) extending in opposite directions in a first direction, a first installation groove (2a) is arranged in the outer shell (2), in an installation state, the sliding block (522) is positioned in the first installation groove (2a) and can only move in the first direction in the first installation groove (2a), the outer shell (2) is made of plastic materials,
still include that the metal keeps off ring (7), shell body (2) is inside the open end of first mounting groove (2a) is provided with second mounting groove (2b), metal keeps off ring (7) and has the fender portion at first direction both ends, metal keeps off ring (7) fixed mounting in second mounting groove (2b), and with slider (522) is in the partial coincidence of degree of depth direction, keep off the portion and be used for corresponding spacing arch (522a) carry on spacingly in the motion of second direction, first direction with second direction mutually perpendicular.
2. The seat height adjuster according to claim 1, wherein the metal blocking ring (7) protrudes outward at both ends in the first direction and forms a limiting groove (7a) therein, the limiting protrusion (522a) is partially inserted into the limiting groove (7a), a predetermined gap is provided between the limiting protrusion (522a) and a corresponding side wall of the limiting groove (7a) in the second direction, and the protrusion is the blocking portion.
3. The seat height adjuster according to claim 1, wherein the metal blocking ring (7) protrudes inward at both ends in the first direction, the limiting protrusion (522a) is provided with a notch having an open outer end and extending in the first direction, the protrusion is inserted into the notch, a predetermined gap is provided between the protrusion and a corresponding sidewall of the notch in the second direction, and the protrusion is the blocking portion.
4. The seat height adjuster according to any one of claims 1 to 3, wherein the second mounting groove (2b) is in interference fit with the metal baffle ring (7).
5. The seat riser according to claim 2, characterized in that the thickness of the metal collar (7) and the slide (522) is the same.
6. The seat height adjuster according to claim 5, wherein both ends of the slider (522) in the second direction are outwardly protruded and internally formed with a stopper groove (522b), both ends of the metal ring (7) in the second direction are outwardly protruded and internally formed with a receiving groove (7b),
the limiting protrusions (522a) can be correspondingly inserted into the accommodating grooves (7b), and the protrusions at two ends of the second direction of the sliding block (522) can be located between the inner walls of the metal retaining rings (7).
7. The seat height adjuster according to claim 6, wherein the distance between the outer end walls of the limit protrusions (522a) at both ends of the slider (522) in the first direction is not greater than the distance between the inner end walls of the receiving grooves (7b) at both ends of the metal baffle ring (7) in the second direction,
the width of the limiting protrusion (522a) is not more than that of the accommodating groove (7b),
the distance between the convex outer end walls at the two ends of the sliding block (522) in the second direction is not greater than the inner diameter of the metal retaining ring (7).
8. The seat height adjuster according to claim 5, wherein both ends of the slider (522) in the second direction are outwardly protruded and form a limiting groove (522b) therein, both ends of the metal blocking ring (7) in the second direction are outwardly protruded and form a receiving groove (7b) therein, the opening end of the limiting groove (7a) is provided with a first notch (7c), the opening end of the receiving groove (7b) is provided with a second notch (7d), and in the operating state, the protrusion of the metal blocking ring (7) in the second direction is located in the second notch (7d),
the limiting protrusion (522a) can be correspondingly inserted into the accommodating groove (7b), and protrusions at two ends of the sliding block (522) in the second direction can be located in the corresponding first notches (7 c).
9. The seat height adjuster according to claim 8, wherein the distance between the outer end walls of the limit protrusions (522a) at both ends of the slider (522) in the first direction is not greater than the distance between the inner end walls of the receiving grooves (7b) at both ends of the metal baffle ring (7) in the second direction,
the width of the limiting protrusion (522a) is not more than that of the accommodating groove (7b),
the width of the two bulges at the two ends of the sliding block (522) in the second direction is not greater than the width of the first notch (7c), and the distance between the outer end walls of the two bulges at the two ends of the sliding block (522) in the second direction is not greater than the minimum distance between the inner end walls of the first notches (7c) at the two ends in the width range of the bulges.
10. A seat height adjusting device, comprising a link mechanism disposed on both sides of a seat, and the seat height adjuster according to any one of claims 1 to 9, wherein the seat height adjuster is configured to drive the link mechanism to move up and down so as to move the seat up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221513696.4U CN217347564U (en) | 2022-06-15 | 2022-06-15 | Seat height adjuster and seat height adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221513696.4U CN217347564U (en) | 2022-06-15 | 2022-06-15 | Seat height adjuster and seat height adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217347564U true CN217347564U (en) | 2022-09-02 |
Family
ID=83038849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221513696.4U Active CN217347564U (en) | 2022-06-15 | 2022-06-15 | Seat height adjuster and seat height adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217347564U (en) |
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2022
- 2022-06-15 CN CN202221513696.4U patent/CN217347564U/en active Active
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