CN206615294U - A kind of adjustable bicycle seat of height - Google Patents

Abstract

A height-adjustable bicycle seat, the bottom of the seat is provided with a fixed rod, and the adjustment device includes a top plate and a bottom plate; a scissor lifting device is arranged between the top plate and the bottom plate; the inner end of the top plate is fixed on the fixed rod, and the bottom plate The inner end is slidably sleeved on the fixed rod, and the outer end of the bottom plate is provided with the driving device of the scissor lift device; the scissor lift device includes two sets of connecting rod assemblies arranged symmetrically on both sides of the x-axis, and the connecting rod assembly includes a hinge An X-shaped first connecting rod and a second connecting rod; the outer end of the first connecting rod is slidably arranged on the outer end of the top plate along the x-axis direction, and the inner end of the first connecting rod is hinged to the inner end of the bottom plate; The inner end of the second connecting rod is hinged with the inner end of the top plate, and the outer ends of the second connecting rod are connected with the driving device; The shafts are connected, the inner end of the lead screw extends along the x-axis direction and passes through the slider, and the slider is hinged to the outer end of the second connecting rod.

Description

A height-adjustable bicycle seat

technical field

The utility model relates to a height-adjustable bicycle seat.

Background technique

As a widely and practical traditional means of transportation, bicycles have already become one of the ways of people's daily travel. Due to the difference in the user's height or the change of posture, the demand for the seat height of the bicycle will also change thereupon. Most of the existing bicycle seat cushions are fixed, and it is inconvenient and very laborious to adjust the lifting, which brings inconvenience to the user. Therefore, it is very necessary to design a convenient and labor-saving bicycle seat adjustment device.

Contents of the invention

Aiming at the deficiency of the existing bicycle seat adjustment technology, the utility model proposes a height-adjustable bicycle seat.

The technical scheme that the utility model solves the above problems is:

A height-adjustable bicycle seat, comprising a seat and an adjusting device for adjusting the height of the seat, and the adjusting device is located on one side under the seat;

The bottom of the seat is provided with a fixed rod extending vertically downward; the adjustment device includes a top plate and a bottom plate laid horizontally, the top plate and the bottom plate are in the shape of a flat cuboid, the top plate is located above the bottom plate, and the top plate and the bottom plate are up and down. Alignment; a scissor lifting device for driving the top plate to move up and down is provided between the top plate and the bottom plate; the inner end of the top plate is fixed on the fixed rod, and the outer end of the top plate is connected to the seat by a spring The bottom is connected, the inner end of the bottom plate is slidably sleeved on the fixed rod, and the outer end of the bottom plate is provided with the driving device of the scissor lifting device;

The straight line defining the height of the fixed rod is the z-axis, and the intersection point of the fixed rod and the top plate is the origin, the end of the top plate close to the fixed rod is the inner end, and the end far away from the fixed rod is the outer end; The straight line extending horizontally from the end to the outer end is the x-axis, and the straight line passing through the origin and perpendicular to the x-axis and the z-axis is the y-axis;

The scissor lifting device includes two sets of connecting rod assemblies symmetrically arranged on both sides of the x-axis, and the connecting rod assemblies include a first connecting rod and a second connecting rod hinged into an X shape; the outer end of the first connecting rod can be Slidingly arranged on the outer end of the top plate along the x-axis direction, the inner end of the first connecting rod is hinged with the inner end of the bottom plate; the inner end of the second connecting rod is hinged with the inner end of the top plate, and the outer ends of the second connecting rod are both connected to the drive;

The driving device includes a meshed lead screw and a slider, the outer end of the lead screw is coaxially connected with the output shaft of the motor, and the inner end of the lead screw extends along the x-axis direction and passes through the slider; The slider is provided on the upper surface of the bottom plate so as to slide only along the x-axis direction, and the slider is hinged to the outer end of the second connecting rod.

Further, the inner end of the top plate is provided with a first bushing, and the fixing rod passes through the first bushing and is fixedly connected with the first bushing.

Further, the inner end of the bottom plate is provided with a second bushing, and the fixing rod slidably passes through the second bushing.

Further, the connection structure between the outer end of the first connecting rod and the top plate is as follows: the top plate is provided with a chute extending along the x-axis direction, and the slide bar runs through the chute along the y-axis direction and is slidably arranged on In the chute, both ends of the slide bar are exposed to the chute, and the outer ends of the two first connecting rods are respectively rotatably sleeved on the two ends of the slide bar.

Further, the connection structure between the slider and the outer end of the second connecting rod is as follows: a fixed rod runs through the slider along the y-axis direction, both ends of the fixed rod are exposed to the slider, and two of the second connecting rods The outer ends of the outer ends are rotatably sleeved on the two ends of the fixed rod respectively.

Further, the connection structure between the inner end of the second connecting rod and the top plate is: the lower surface of the inner end of the top plate is provided with a first hinged seat, the first hinged seat is located on one side of the first shaft sleeve, and the second The inner end of the connecting rod is hinged to the first hinge seat.

Further, the connection structure between the inner end of the first connecting rod and the bottom plate is as follows: a second hinge seat is provided on the upper surface of the bottom plate, the second hinge seat is located on one side of the second bushing, and the first joint The inner end of the rod is hinged to the second hinge seat.

Further, the hinged structure of the first connecting rod and the second connecting rod is as follows: the hinged rod extends along the y-axis direction, two sets of connecting rod assemblies are respectively hinged at both ends of the hinged rod, the center of the first connecting rod and the center of the second connecting rod The center can be rotatably sleeved on the hinge rod.

Further, the lead screw is erected on the upper surface of the bottom plate through a bracket, and the support includes a first frame body and a second frame body through which the outer end and the inner end of the lead screw respectively pass, the first frame body and the second frame body The frames are arranged along the z-axis direction and vertically fixed on the slide plate, the slide plate is fixedly laid on the bottom plate, the slide plate is provided with a groove-shaped slideway extending along the x-axis direction, and the slide block is slidably embedded within the slideway.

The beneficial effects of the utility model are mainly manifested in:

1. Use the scissor lift device to make the adjustment process efficient and stable without impact;

2. Use the motor as the power source to save manpower and reduce the manufacturing cost of other complex structures;

3. The self-locking feature of the lead screw ensures the safety of the mechanism, easy operation and strong practicability.

Description of drawings

Fig. 1 is a structural representation of the utility model

Figure 2 is a schematic diagram of the structure of the drive device

Figure 3 is a schematic structural view of the scissor lift device

Figure 4 is the left side view of Figure 3

detailed description

With reference to the accompanying drawings, a height-adjustable bicycle seat includes a seat 5 and an adjusting device for adjusting the height of the seat 5, and the adjusting device is located on the side below the seat 5;

The bottom of the seat 5 is provided with a fixed rod 6 extending vertically downward; the adjustment device includes a top plate 1 and a bottom plate 3 laid horizontally, the top plate 1 and the bottom plate 3 are in the shape of a flat cuboid, and the top plate 1 is located on the bottom plate 3 above, and the top plate 1 and the bottom plate 3 are aligned up and down; a scissor lifting device 2 for driving the top plate 1 to move up and down is provided between the top plate 1 and the bottom plate 3; the inner end of the top plate 1 is fixed on the fixed rod 6 Above, the outer end of the top plate 1 is connected to the bottom of the seat through a spring, the inner end of the bottom plate 3 is slidably sleeved on the fixed rod 6, and the outer end of the bottom 3 plate is provided with The driving device 4 of the scissor lifting device 2;

The straight line defining the height of the fixed rod 6 is the z axis, and the intersection point between the fixed rod 6 and the top plate 1 is the origin, the end of the top plate 1 close to the fixed rod 6 is the inner end, and the end far away from the fixed rod 6 is the outer end; The origin and the straight line extending horizontally from the inner end of the top plate 1 to the outer end (that is, perpendicular to the z-axis) is the x-axis, and the straight line passing through the origin and perpendicular to the x-axis and the z-axis is the y-axis;

The scissor lift device 2 includes two sets of connecting rod assemblies symmetrically arranged on both sides of the x-axis, the connecting rod assemblies including a first connecting rod 2a and a second connecting rod 2b hinged in an X shape, the first connecting rod 2a It is hinged with the second link 2b at the center; the outer end K1 of the first link 2a is slidably arranged on the outer end of the top plate 1 along the x-axis direction, and the inner end K2 of the first link 2a is connected with the inner end of the bottom plate 3 The end is hinged; the inner end L2 of the second connecting rod 2b is hinged with the inner end of the top plate 1, and the outer end of the second connecting rod 2b is connected with the driving device 4;

The driving device 4 includes a meshed lead screw 11 and a slider 12, the outer end of the lead screw 11 is coaxially connected with the output shaft of the motor 9, and the inner end of the lead screw 11 extends along the x-axis direction and penetrates The slider 12 is provided on the upper surface of the bottom plate 3 so as to slide only along the x-axis direction, and the slider 12 is hinged to the outer end L1 of the second connecting rod 2b.

The inner end of the top plate 1 is provided with a first bushing 1a, and the fixing rod 6 passes through the first bushing 1a and is fixedly connected with the first bushing 1a.

The inner end of the bottom plate 3 is provided with a second bushing 3 a, and the fixing rod 6 slidably passes through the second bushing 3 a.

The connection structure between the outer end K1 of the first connecting rod 2a and the top plate 1 is as follows: the top plate 1 is provided with a chute 1c extending along the x-axis direction; the slide bar 7 runs through the chute 1c along the y-axis direction and It is slidably arranged in the sliding groove 1c, and the two ends of the sliding rod 7 are exposed to the sliding groove 1c, and the outer ends K1 of the two first connecting rods 2a are rotatably sleeved on the two ends of the sliding rod 7 respectively.

The connection structure between the slider 12 and the outer end L1 of the second connecting rod 2b is as follows: the fixed rod 8 runs through the slider 12 along the y-axis direction, and the two ends of the fixed rod 8 are exposed to the slider 12 and are both connected to the slider 12. The outer end L1 of the second connecting rod 2b is hinged, and the outer ends L1 of the two second connecting rods 2b are respectively rotatably sleeved on both ends of the fixing rod 8 .

The connection structure between the inner end L2 of the second connecting rod 2b and the top plate 1 is: the lower surface of the inner end of the top plate 1 is provided with a first hinged seat 1b, and the first hinged seat 1b is located on one side of the first shaft sleeve 1a , the inner end L2 of the second connecting rod 2b is hinged to the first hinge seat 1b.

The connection structure between the inner end of the first connecting rod 2a and the bottom plate 3 is as follows: the upper surface of the bottom plate 3 is provided with a second hinge seat 3b, and the second hinge seat 3b is located on one side of the second shaft sleeve 3a, so that The inner end of the first connecting rod 2a is hinged to the second hinge seat 3b.

The hinge structure of the first link 2a and the second link 2b is as follows: the hinge bar 14 extends along the y-axis direction, and the two sets of link assemblies are respectively hinged at the two ends of the hinge bar 14, that is, the center of the first link 2a and the second link. The centers of the two connecting rods 2 b are rotatably sleeved on the hinge rod 14 .

The lead screw 11 is erected on the upper surface of the bottom plate 3 through a bracket 13, and the support 13 includes a first frame body and a second frame body through which the outer end and the inner end of the lead screw 11 respectively pass,

The first frame body and the second frame body are both arranged along the z-axis direction and vertically fixed on the slide plate, the slide plate is fixedly laid on the bottom plate 3, and the slide plate is provided with a groove-like slideway extending along the x-axis direction, so The slider 12 is slidably embedded in the slideway, and the slider 12 only slides along the x-axis direction.

The top plate 1 mainly plays the role of supporting the seat 5 of the bicycle, and the fixed rod 6 runs through the first bushing 1a and the second bushing 3a to position the seat 5; the first connecting rod 2a of the scissor lifting device 2 and the second connecting rod 2b are both rigid rods, the inner end K2 of the first connecting rod 2a is hinged with the second hinge seat 3b on the bottom plate 3, and the outer end K1 of the first connecting rod 2a is slidably nested in the chute The sliding rod 7 in 1c is hinged; the inner end L2 of the second connecting rod 2b is hinged with the first hinge seat 1b on the top plate 1, the outer end L1 of the second connecting rod 2b is hinged with the fixed rod 8, and the first connecting rod 2a and the second The center of the two connecting rods 2b is provided with a through hole matched with the hinge rod 14, and the first connecting rod 2a and the second connecting rod 2b are rotatably sleeved on the hinge rod 14; the driving device 4 includes a motor 9, the motor 9 adopts a servo motor, and the motor 9 is fixed on the base plate 3 through the support base 10; the internal thread corresponding to the lead screw 11 is provided in the slider 12, and the slider 12 is embedded in the slideway on the slide plate of the bracket 13, and can be moved along the The slideway slides.

The motor 9 is provided with a power supply, a forward rotation switch and a reverse rotation switch. When the forward rotation switch of the motor 9 is pressed, the motor 9 starts to rotate, and drives the lead screw 11 to rotate, and the slider 12 is driven by the lead screw along the x-axis direction Horizontally moving to the outer end, the fixed rod 8 fixed on the slider 12 drives the outer end K1 of the first connecting rod 2a of the scissor lift device 2 and the outer end L1 of the second connecting rod 2b to slide outward. The inner end K2 of the rod 2a and the inner end L2 of the second connecting rod 2b cannot move along the x-axis direction, so that the scissor lifting device 2 performs a shearing movement, pushing the top plate 1 and the bottom plate 3 to translate upward along the z-axis direction, and the top plate 1 The seat 5 is driven upward by the fixed rod 6, and the second sleeve on the base plate 2 slides upward along the fixed rod so that the bicycle seat 5 can be adjusted up; otherwise, if the reverse switch of the motor 9 is pressed , the bicycle seat 5 can be lowered.

The content described in the embodiments of this specification is only an enumeration of the realization forms of the utility model concept. The protection scope of the utility model should not be regarded as limited to the specific forms stated in the embodiments. The protection scope of the utility model also includes Equivalent technical means that those skilled in the art can think of according to the concept of the utility model.

Claims (9)

1. a kind of adjustable bicycle seat of height, it is characterised in that：Adjusting means including seat and regulation height of seat, and Adjusting means is located at the side of under-seat；

The bottom of the seat is provided with the fix bar extended vertically downwards；The adjusting means include equal level lay top plate and Bottom plate, top plate and bottom plate are in prolate cube shape, and top plate is located at the top of bottom plate, and top plate and bottom plate consistency from top to bottom；The top Being provided between plate and bottom plate is used to drive the scissor lift arrangement that top plate is moved up and down；The inner of the top plate is fixed on described solid In fixed pole, the outer end of the top plate is connected by spring with the bottom of the seat, and the inner of the bottom plate is slideably arranged In the fix bar, the outer end of the bottom plate is provided with the drive device of the scissor lift arrangement；

Straight line where defining the height of fix bar is z-axis, and the intersection point of fix bar and top plate is origin, and top plate is close to fix bar One end for the inner, away from fix bar one end be outer end；It is by the origin and horizontal-extending outward from the inner of top plate Straight line be x-axis, by the origin and both perpendicular to x-axis and z-axis straight line be y-axis；

The scissor lift arrangement includes being symmetricly set on 2 groups of link assemblies of x-axis both sides, and the link assembly includes being hinged to The first connecting rod and second connecting rod of X-shaped；The outer end of first connecting rod can be slidably arranged on the outer end of top plate along the x-axis direction, the The inner and the inner of bottom plate of one connecting rod are hinged；The inner and the inner of top plate of second connecting rod are hinged, and the outer end of second connecting rod is equal It is connected with drive device；

The drive device includes the leading screw and sliding block being meshed, and the outer end of the leading screw is coaxially connected with the output shaft of motor, The inner of the leading screw extends through the sliding block along the x-axis direction；The sliding block is only slidably arranged in described along the x-axis direction On the upper surface of bottom plate, and the outer end of the sliding block and the second connecting rod is hinged.

2. a kind of adjustable bicycle seat of height as claimed in claim 1, it is characterised in that：The inner of the top plate is provided with First axle sleeve, the fix bar is fixedly connected through the first axle sleeve and with the first axle sleeve.

3. a kind of adjustable bicycle seat of height as claimed in claim 2, it is characterised in that：The inner of the bottom plate is provided with Second axle sleeve, the fix bar slidably extends through the second axle sleeve.

4. a kind of adjustable bicycle seat of height as claimed in claim 3, it is characterised in that：The outer end of the first connecting rod Attachment structure with top plate is：The top plate is provided with the chute extended along the x-axis direction, and slide bar runs through the cunning along the y-axis direction Groove and it is slidably disposed in chute, the two ends of slide bar expose to chute, and the outer end of 2 first connecting rods rotationally covers respectively On the two ends for being located at the slide bar.

5. a kind of adjustable bicycle seat of height as claimed in claim 4, it is characterised in that：The sliding block and described second The attachment structure of the outer end of connecting rod is：Fix bar runs through the sliding block along the y-axis direction, and the two ends of fix bar expose to sliding block, 2 The outer end of the second connecting rod is rotatably sleeved on the two ends of the fix bar respectively.

6. a kind of adjustable bicycle seat of height as claimed in claim 5, it is characterised in that：The inner of the second connecting rod Attachment structure with top plate is：The inner lower surface of the top plate is provided with the first hinged seat, and the first hinged seat is located at first axle The side of set, inner and first hinged seat of the second connecting rod is hinged.

7. a kind of adjustable bicycle seat of height as claimed in claim 6, it is characterised in that：The inner of the first connecting rod Attachment structure with bottom plate is：The upper surface of the bottom plate is provided with the second hinged seat, and the second hinged seat is located at the second axle sleeve Side, inner and second hinged seat of the first connecting rod is hinged.

8. a kind of adjustable bicycle seat of height as claimed in claim 7, it is characterised in that：First connecting rod and second connecting rod Articulated structure be：Hinge bar extends along the y-axis direction, and 2 groups of link assemblies are respectively hinged at the two ends of hinge bar, first connecting rod Center and the center of second connecting rod are rotatably sleeved on hinge bar.

9. a kind of adjustable bicycle seat of height as claimed in claim 8, it is characterised in that：The leading screw passes through support It is erected on the upper surface of bottom plate, the support includes the outer end and inner the first support body and the second frame being each passed through for leading screw Body, the first support body and the second support body set and are vertically fixed on slide plate along the z-axis direction, and the slide plate is fixed and is laid on bottom plate On, the slide plate is provided with the channel-shaped slideway extended along the x-axis direction, and the sliding block is slideably embedded in the slideway.