CN112046597B - Steering wheel position adjusting mechanism for kart and novel kart - Google Patents
Steering wheel position adjusting mechanism for kart and novel kart Download PDFInfo
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- CN112046597B CN112046597B CN202010989382.0A CN202010989382A CN112046597B CN 112046597 B CN112046597 B CN 112046597B CN 202010989382 A CN202010989382 A CN 202010989382A CN 112046597 B CN112046597 B CN 112046597B
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- 230000001360 synchronised effect Effects 0.000 claims 1
- 230000002708 enhancing effect Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000006978 adaptation Effects 0.000 description 6
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- 238000005299 abrasion Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/185—Steering columns yieldable or adjustable, e.g. tiltable adjustable by axial displacement, e.g. telescopically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/181—Steering columns yieldable or adjustable, e.g. tiltable with power actuated adjustment, e.g. with position memory
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- Combustion & Propulsion (AREA)
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Abstract
A steering wheel position adjustment mechanism and novel kart for kart relates to vehicle technical field. The steering column of the steering wheel position adjustment mechanism includes an upper steering column and a lower steering column. The upper steering column is cylindrical, and is slidably sleeved on the lower steering column along the axial direction of the upper steering column. Along the circumference of the upper steering column, the upper steering column is fixedly matched with the lower steering column. The outer wall of the lower steering column is provided with a rack arranged along the axial direction of the lower steering column, the upper steering column is provided with a driving assembly, and a driving gear of the driving assembly is meshed with the rack and used for driving the upper steering column and the lower steering column to move relatively along the axial direction, so that the elongation or the shortening of the steering column is controlled. The device has the advantages of simple structure and convenient use, is beneficial to improving and enhancing the operation comfort level of a user, and simultaneously greatly improves the overall safety and reliability. The novel kart has higher operation comfort level and higher overall safety and reliability.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a steering wheel position adjusting mechanism for a kart and a novel kart.
Background
With the development of society and the improvement of living standard, kart sports become a popular entertainment sports, and the current kart is more and more diversified. However, the comfort and experience of drivers with different heights can be seriously affected in the using process of the existing kart. On the other hand, the prior kart can influence the driving safety of the kart when the ergonomic adjustment is carried out.
In view of this, the present application has been made.
Disclosure of Invention
The first object of the present invention is to provide a steering wheel position adjusting mechanism for carting car, which has a simple structure and is convenient to use, and is helpful for improving and enhancing the operation comfort of users and enhancing the adaptation degree to users with different sizes; and meanwhile, the overall safety and reliability are greatly improved.
The second object of the invention is to provide a novel kart which has higher operation comfort, better adaptation to users of different sizes and higher overall safety and reliability.
Embodiments of the present invention are implemented as follows:
A steering wheel position adjustment mechanism for a carting car, the steering column comprising: an upper steering column and a lower steering column. The upper steering column is cylindrical, and is slidably sleeved on the lower steering column along the axial direction of the upper steering column. Along the circumference of the upper steering column, the upper steering column is fixedly matched with the lower steering column. The outer wall of the lower steering column is provided with a rack arranged along the axial direction of the lower steering column, the upper steering column is provided with a driving assembly, and a driving gear of the driving assembly is meshed with the rack and used for driving the upper steering column and the lower steering column to move relatively along the axial direction, so that the elongation or the shortening of the steering column is controlled.
Further, the rack is formed by convex teeth uniformly spaced along the axial direction of the lower steering column, the convex teeth comprise an extension section extending along the radial direction of the lower steering column and a tail section connected to the end wall of the extension section, and the tail section is hemispherical and is smooth. Along the circumference of the lower steering column, a plurality of racks are uniformly arranged at intervals.
The inner wall of the upper steering column is concavely provided with a chute for sliding the rack, and the length of the convex teeth is greater than the depth of the chute. The convex teeth are propped against the bottom wall of the chute through the tail section, and a gap is reserved between the outer wall of the lower steering column and the inner wall of the upper steering column.
Further, the lower end wall of the upper steering column has extending arms extending in the axial direction thereof, and a plurality of extending arms are arranged at regular intervals in the circumferential direction thereof.
Locking blocks are arranged between two adjacent extension arms. The lateral wall of extension arm has offered and is used for with locking piece complex breach, along the radial of last steering column, and both sides of locking piece all slidably cooperate in the breach respectively. Along the axial direction of the upper steering column, the locking block is fixedly matched with the extension arm. And a tooth hole matched with the convex tooth is formed in the side wall of one side of the locking block, which is close to the central axis of the upper steering column. The locking block is provided with a control assembly for driving it away from and towards the lower steering column to accomplish the release and locking of the lower steering column.
Further, the inner wall of the notch is provided with a guide groove arranged along the sliding direction of the locking piece, and the locking piece is provided with a guide edge which is used for being in sliding fit with the guide groove.
Further, the locking member has a fitting through hole that is opened in an axial direction of the upper steering column, the fitting through hole, and the fitting through hole extends in a radial direction of the upper steering column.
The control assembly includes: an expansion assembly and a reduction assembly. The expansion assembly comprises a push rod and a cylinder. The push rod is axially arranged along the upper steering column, one end of the push rod, which is close to the locking block, is provided with a guide wall, and the guide wall is positioned on one side of the push rod, which is far away from the upper steering column. The distance between the guide wall and the upper steering column increases gradually from one end of the push rod, which is close to the locking block, to the other end of the push rod.
The push rod is in transmission fit with the air cylinder and used for driving the push rod to move towards the locking block, so that the push rod is inserted into the fit through hole to push the locking block to one side far away from the lower steering column, or used for driving the push rod to withdraw from the fit through hole of the locking block, and the locking block is reset under the action of the reset assembly.
Further, the inner wall of the matching through hole is also rotatably matched with a rolling column, the matching column is positioned at one side of the cavity of the matching through hole, which is far away from the upper steering column, and the rotating axis of the rolling column is perpendicular to the sliding direction of the corresponding locking block, so that the rolling column can be in rolling fit with the guide wall of the push rod.
Further, the reset assembly includes: a reset ring and an elastic piece. The reset ring is coaxially arranged with the upper steering column and fixedly connected with the upper steering column. One end of the elastic piece is fixedly connected to the inner wall of the resetting ring, and the other end of the elastic piece is abutted to one side wall of the locking block, which is far away from the central axis of the upper steering column.
Further, the outer wall of the upper steering column has an annular flange through which the push rod extends and is in sliding engagement therewith. The ends of the plurality of push rods, which are far away from the locking blocks, are connected to the synchronizing ring, the synchronizing ring is slidably sleeved on the outer wall of the upper steering column, and the push rods are matched with the air cylinder in a transmission way through the synchronizing ring.
Further, the annular flange is provided with an inner cavity, the inner cavity is fixedly provided with a first conductive column and a second conductive column, and the first conductive column and the second conductive column are coaxially arranged and are arranged at intervals. And one side of the annular flange, which is close to the synchronizing ring, is provided with a yielding through hole for communicating the inner cavity with the outside, and the yielding through hole points to a gap area between the first conductive column and the second conductive column.
The power supply line of the driving component is in conductive connection with the first conductive column, and the power supply component for supplying power to the driving component is in conductive connection with the second conductive column. The side of the synchronizing ring, which is close to the annular flange, is provided with a conductive elastic sheet, so that when the cylinder pushes the push rod to push away the locking block, the elastic sheet can be inserted into a gap between the first conductive column and the second conductive column through the abdication through hole, and the first conductive column and the second conductive column are electrically conducted.
A novel carting car, comprising: the steering wheel position adjusting mechanism.
The embodiment of the invention has the beneficial effects that:
In the using process of the steering wheel position adjusting mechanism for the kart, the control of the whole length of the steering column can be realized by controlling the driving quantity and the driving direction of the driving component, so that the adjustment of the height of the whole steering wheel mechanism is realized. Specifically, when the lower steering column is driven to extend from the upper steering column by the rack by the drive gear of the drive assembly, the steering column is integrally elongated, and the steering wheel mechanism is integrally raised. And when the lower steering column is driven by the driving gear of the driving assembly through the rack to move into the upper steering column, the whole steering column is shortened, and the whole steering wheel mechanism is lowered.
The whole adjusting process is very convenient, simple and quick, and has good stability, and the stability and the safety of the whole car are not influenced by the height adjustment of the steering wheel mechanism.
In general, the steering wheel position adjusting mechanism for the kart provided by the embodiment of the invention has a simple structure and is convenient to use, so that the operating comfort level of users is improved and promoted, and the adaptation degree of users with different sizes is improved; and meanwhile, the overall safety and reliability are greatly improved. The novel kart provided by the embodiment of the invention has higher operation comfort level, better adaptation level to users with different body types and higher overall safety and reliability.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a steering wheel position adjustment mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic view of the steering wheel position adjustment mechanism of FIG. 1 from a second perspective;
FIG. 3 is a schematic view of the internal structure of the steering wheel position adjustment mechanism of FIG. 1;
FIG. 4 is a schematic view of the structure of the teeth of the steering wheel position adjustment mechanism of FIG. 3;
FIG. 5 is a schematic view of the steering wheel position adjustment mechanism of FIG. 3 with a lock block push rod not inserted into the lock block;
FIG. 6 is an enlarged view of area A of FIG. 5;
FIG. 7 is a schematic view of the steering wheel position adjustment mechanism of FIG. 3 with a lock block push rod inserted into the lock block;
FIG. 8 is an enlarged view of area B of FIG. 7;
FIG. 9 is a schematic diagram of the mating of the upper and lower rotating columns;
FIG. 10 is a schematic view of the end structure of the upper rotating post;
FIG. 11 is a schematic cross-sectional view of an extension arm of the upper swing post;
FIG. 12 is a schematic view of the locking block in a locked state (collapsed);
FIG. 13 is a schematic view of the lock block in an unlocked state (fanned out);
FIG. 14 is a schematic view of the structure of the locking block;
FIG. 15 is a schematic view of the cooperation of the reset assembly with the lock block in the locked state (collapsed);
FIG. 16 is a schematic diagram of the cooperation of the reset assembly with the lock block in the unlocked state (fanned out);
FIG. 17 is a schematic illustration of a power supply mode of a drive assembly of the steering wheel position adjustment mechanism of FIG. 1;
FIG. 18 is a schematic structural diagram of a first working state of the novel kart according to an embodiment of the present invention;
Fig. 19 is a schematic structural diagram of a second working state of the novel kart according to an embodiment of the present invention.
Icon: steering wheel position adjustment mechanism 1000; an upper steering column 100; a chute 110; an extension arm 120; notch 121; a guide groove 122; an annular flange 130; a first conductive pillar 131; a second conductive post 132; a synchronizing ring 140; a conductive spring piece 141; a lower steering column 200; a rack 210; the teeth 211; extension 211a; tail section 211b; a drive assembly 300; a drive gear 310; a locking block 400; a tooth aperture 410; guide ribs 420; a fitting through hole 430; a rolling column 440; a push rod 510; a guide wall 511; a cylinder 520; a reset ring 610; an elastic member 620; novel card Ding Che 2000.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Examples
Referring to fig. 1 to 3, the present embodiment provides a steering wheel position adjustment mechanism 1000 for a kart, and a steering column of the steering wheel position adjustment mechanism 1000 includes: an upper steering column 100 and a lower steering column 200.
The upper steering column 100 has a cylindrical shape, and the upper steering column 100 is slidably fitted over the lower steering column 200 in the axial direction thereof. The upper steering column 100 is fixedly engaged with the lower steering column 200 in the circumferential direction of the upper steering column 100.
The outer wall of the lower steering column 200 has a rack 210 disposed along the axial direction thereof, the upper steering column 100 is provided with a driving assembly 300, and a driving gear 310 of the driving assembly 300 is engaged with the rack 210 to drive the upper steering column 100 and the lower steering column 200 to move relatively in the axial direction, thereby controlling the elongation or shortening of the steering column as a whole.
In use, control of the overall length of the steering column may be achieved by controlling the amount and direction of drive of the drive assembly 300, thereby achieving height adjustment of the overall steering wheel mechanism. Specifically, when the lower steering column 200 is driven to protrude from the upper steering column 100 by the rack 210 using the driving gear 310 of the driving assembly 300, the entire steering column is extended and the entire steering wheel mechanism is raised. And when the lower steering column 200 is driven to move into the upper steering column 100 by the rack 210 using the driving gear 310 of the driving assembly 300, the entire steering column is shortened and the entire steering wheel mechanism is lowered.
The whole adjusting process is very convenient, simple and quick, and has good stability, and the stability and the safety of the whole car are not influenced by the height adjustment of the steering wheel mechanism.
In general, the steering wheel position adjustment mechanism 1000 for carting car provided by the embodiment of the invention has a simple structure and is convenient to use, which is beneficial to improving and enhancing the operation comfort of users, enhancing the adaptation to users with different sizes and guaranteeing the overall safety and reliability.
In the present embodiment, the upper steering column 100 has a cylindrical shape, and the lower steering column 200 has a cylindrical shape.
Referring to fig. 4, further, the rack 210 is formed of teeth 211 uniformly spaced along the axial direction of the lower steering column 200, and the teeth 211 include an extension 211a extending along the radial direction of the lower steering column and a tail 211b connected to the end wall of the extension 211a, and the tail 211b is hemispherical and smooth. The plurality of racks 210 are disposed at uniform intervals in the circumferential direction of the lower steering column 200.
The inner wall of the upper steering column 100 is concavely provided with a sliding groove 110 for sliding the rack 210, and the length of the tooth 211 (the sum of the lengths of the extension 211a and the tail end) is greater than the depth of the sliding groove 110. The convex teeth 211 are abutted against the bottom wall of the chute 110 through the tail section 211b, and a gap is formed between the outer wall of the lower steering column 200 and the inner wall of the upper steering column 100.
Through the above design, on the one hand, stable relative movement between the lower steering column 200 and the upper steering column 100 is ensured, and on the other hand, resistance between the two during relative movement (adjustment) is greatly reduced, and simultaneously, mechanical abrasion is also reduced. In addition, such a design also helps to improve the fit between the drive gear 310 and the rack 210.
Referring to fig. 5 to 14, the lower end wall of the upper steering column 100 has extension arms 120 extending in the axial direction thereof, and a plurality of extension arms 120 are arranged at regular intervals in the circumferential direction thereof.
A locking block 400 is disposed between each of the adjacent two extension arms 120. The side wall of the extension arm 120 is provided with a notch 121 for cooperating with the locking block 400, and both sides of the locking block 400 are slidably engaged with the notch 121, respectively, in the radial direction of the upper steering column 100. The locking block 400 is fixedly engaged with the extension arm 120 in the axial direction of the upper steering column 100.
A side wall of the locking block 400 near the central axis of the upper steering column 100 is provided with a tooth hole 410 for cooperation with the tooth 211. The lock block 400 is configured with a control assembly for driving it away from and toward the lower steering column 200 to accomplish the release and locking of the lower steering column 200.
When the overall length of the steering column is adjusted, the upper steering column 100 and the lower steering column 200 remain relatively stationary. At this time, the locking block 400 is driven by the control assembly to move along the notch 121 of the extension arm 120 toward the lower steering column 200, so that the tooth hole 410 of the locking block 400 is engaged with the tooth 211, thereby locking the lower steering column 200.
Through the above design, it is possible to ensure sufficient relative stability between the lower steering column 200 and the upper steering column 100 after the steering column is adjusted in place, and to reduce the stress load at the driving gear 310, which contributes to the improvement of the overall stability of the steering column.
In this embodiment, the inner wall of the notch 121 is provided with a guide groove 122 disposed along the sliding direction of the locking member, and the locking member is provided with a guide rib 420 for sliding engagement with the guide groove 122. The sliding direction of the locking piece is the radial direction of the upper steering column 100 corresponding to the middle part thereof.
Further, the locking member has a fitting through hole 430 opened in an axial direction of the upper steering column 100, the fitting through hole 430, and the fitting through hole 430 extends in a radial direction of the upper steering column 100.
The control assembly includes: an expansion assembly and a reduction assembly.
The expansion assembly includes: push rod 510 and cylinder 520. The push rod 510 is disposed along the axial direction of the upper steering column 100, and one end of the push rod 510 near the lock block 400 has a guide wall 511, the guide wall 511 being located on a side of the push rod 510 remote from the upper steering column 100. The guide wall 511 is spaced from the upper steering column 100 by an increasing distance from one end of the push rod 510 near the lock block 400 toward the other end thereof.
The push rod 510 is in driving engagement with the cylinder 520 to drive the push rod 510 to move toward the lock block 400, so that the push rod 510 is inserted into the engagement through hole 430 to push the lock block 400 toward a side away from the lower steering column 200, or to drive the push rod 510 to withdraw from the engagement through hole 430 of the lock block 400, so that the lock block 400 is reset under the action of the reset assembly.
Referring to fig. 15 to 16, the reset assembly includes: a reset ring 610 and an elastic member 620. The reset ring 610 is coaxially disposed with the upper steering column 100, and the reset ring 610 is fixedly coupled with the upper steering column 100. One end of the elastic member 620 is fixedly connected to the inner wall of the reset ring 610, and the other end thereof abuts against a side wall of the locking block 400, which is far away from the central axis of the upper steering column 100.
The lock of the lower steering column 200 by the lock block 400 needs to be released before the entire length of the steering column is adjusted. Pushing the push rod 510 by the cylinder 520 is inserted into the fitting through hole 430 of the lock block 400, so that the push rod 510 pushes the lock block 400 away from the lower steering column 200 by the guide wall 511 thereof, thereby releasing the teeth 211 from the tooth holes 410, and unlocking is achieved. At this time, the lower steering column 200 and the upper steering column 100 are driven to move relatively by the driving assembly 300, so that the length adjustment is achieved.
After the adjustment is completed, the push rod 510 is controlled to retract and reset, and the locking member is reset under the action of the elastic member 620, so that the convex teeth 211 are matched with the tooth holes 410 again, and the lower steering column 200 is locked again.
In this embodiment, the inner wall of the mating through hole 430 is further rotatably fitted with a rolling post 440, the mating post is located at a side of the bore of the mating through hole 430 away from the upper steering column 100, and the axis of rotation of the rolling post 440 is perpendicular to the sliding direction of the corresponding locking block 400, so that the rolling post 440 can be in rolling fit with the guiding wall 511 of the push rod 510, so that the push rod 510 can push the locking block 400 more smoothly, and meanwhile, mechanical wear is reduced.
Further, referring to fig. 17, the outer wall of the upper steering column 100 has an annular flange 130, and a push rod 510 penetrates the annular flange 130 and slidably engages therewith. The ends of the plurality of push rods 510 far away from the locking block 400 are connected to the synchronizing ring 140, the synchronizing ring 140 is slidably sleeved on the outer wall of the upper steering column 100, and the push rods 510 are in transmission fit with the air cylinders 520 through the synchronizing ring 140. Thereby improving the motion synchronization coordination of the push rod 510.
The annular flange 130 has an inner cavity, in which a first conductive post 131 and a second conductive post 132 are fixedly mounted, and the first conductive post 131 and the second conductive post 132 are coaxially disposed and spaced apart. One side of the annular flange 130, which is close to the synchronizing ring 140, is provided with a relief through hole for communicating the inner cavity with the outside, and the relief through hole points to a gap region between the first conductive post 131 and the second conductive post 132.
The power supply line of the driving assembly 300 is electrically connected to the first conductive post 131, and the power supply assembly for supplying power to the driving assembly 300 is electrically connected to the second conductive post 132. The side of the synchronizing ring 140 near the annular flange 130 is provided with a conductive elastic sheet 141, so that when the cylinder 520 pushes the push rod 510 to push the locking block 400 away, the elastic sheet can be inserted into a gap between the first conductive post 131 and the second conductive post 132 through the yielding through hole, thereby electrically conducting the first conductive post 131 and the second conductive post 132.
Through the design, the power supply of the driving assembly 300 is communicated only after the push rod 510 pushes the locking block 400 open to unlock the lower steering column 200, so that misoperation is avoided, and misoperation is reduced.
In this embodiment, the driving assembly 300 may be configured by using a servo motor equipped with a speed reducer and the driving gear 310.
Referring to fig. 18 to 19, the present embodiment further provides a novel carting car 2000, the novel carting car 2000 includes: steering wheel position adjustment mechanism 1000.
For larger users, the steering wheel mechanism can be adjusted to be higher, and the seat body can be moved backwards along the sliding column. For users with smaller sizes, the height of the steering wheel mechanism can be adjusted down, and the seat body can be moved forward along the sliding column.
The novel kart 2000 does not cause gravity center change in the adjusting process, and is beneficial to further improving driving safety. By adjusting the seat body and the steering wheel mechanism, users with different physique can be satisfied, and the mode is stepless adjustable, so that the user can find the most comfortable man-machine position. The seat body is sunk in the chassis, and the installation height of the seat body cannot be increased in the adjusting process, so that the gravity center position of the whole vehicle is guaranteed to be lower, rollover of the vehicle during high-speed bending is prevented, and the safety of the whole vehicle is improved.
In summary, the steering wheel position adjusting mechanism 1000 for kart has a simple structure and is convenient to use, which is helpful for improving and enhancing the operation comfort of users and enhancing the adaptability to users of different sizes; and meanwhile, the overall safety and reliability are greatly improved. The novel carting car 2000 has higher operation comfort level, has better adaptation degree to users with different body types, and has higher overall safety and reliability.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A steering wheel position adjustment mechanism for a carting car, the steering column comprising: an upper steering column and a lower steering column; the upper steering column is cylindrical, and is sleeved on the lower steering column in a sliding way along the axial direction of the upper steering column; the upper steering column is fixedly matched with the lower steering column along the circumferential direction of the upper steering column; the outer wall of the lower steering column is provided with a rack arranged along the axial direction of the lower steering column, the upper steering column is provided with a driving assembly, and a driving gear of the driving assembly is meshed with the rack and used for driving the upper steering column and the lower steering column to move relatively along the axial direction so as to control the elongation or the shortening of the steering column;
The rack consists of convex teeth which are uniformly arranged at intervals along the axial direction of the lower steering column, the convex teeth comprise extension sections which extend along the radial direction of the lower steering column and tail sections which are connected with the end walls of the extension sections, and the tail sections are hemispherical and smooth; the racks are uniformly arranged at intervals along the circumferential direction of the lower steering column;
A sliding groove for the rack to slide is concavely formed in the inner wall of the upper steering column, and the length of the convex tooth is greater than the depth of the sliding groove; the convex teeth are propped against the bottom wall of the chute through the tail section, and a gap is reserved between the outer wall of the lower steering column and the inner wall of the upper steering column;
The lower end wall of the upper steering column is provided with extension arms which extend along the axial direction of the upper steering column, and a plurality of extension arms are uniformly arranged at intervals along the circumferential direction of the upper steering column;
A locking block is arranged between two adjacent extension arms; the side wall of the extension arm is provided with a notch for being matched with the locking block, and two sides of the locking block are respectively matched with the notch in a sliding manner along the radial direction of the upper steering column; the locking block is fixedly matched with the extension arm along the axial direction of the upper steering column; a tooth hole matched with the convex tooth is formed in the side wall of one side, close to the central axis of the upper steering column, of the locking block; the locking block is provided with a control assembly for driving the locking block away from and close to the lower steering column so as to complete the release and locking of the lower steering column;
The inner wall of the notch is provided with a guide groove arranged along the sliding direction of the locking block, and the locking block is provided with a guide edge which is used for being in sliding fit with the guide groove;
the locking block is provided with a matching through hole which is arranged along the axial direction of the upper steering column, and the matching through hole extends along the radial direction of the upper steering column;
The control assembly includes: an expansion assembly and a reset assembly; the expansion assembly comprises a push rod and an air cylinder; the push rod is arranged along the axial direction of the upper steering column, one end of the push rod, which is close to the locking block, is provided with a guide wall, and the guide wall is positioned at one side of the push rod, which is far away from the upper steering column; the distance between the guide wall and the upper steering column increases gradually from one end of the push rod, which is close to the locking block, to the other end of the push rod;
the push rod is in transmission fit with the air cylinder and is used for driving the push rod to move towards the locking block, so that the push rod is inserted into the fit through hole to push the locking block to one side far away from the lower steering column, or is used for driving the push rod to withdraw from the fit through hole of the locking block, and the locking block is reset under the action of the reset component;
The reset assembly includes: a reset ring and an elastic member; the reset ring is coaxially arranged with the upper steering column and fixedly connected with the upper steering column; one end of the elastic piece is fixedly connected to the inner wall of the reset ring, and the other end of the elastic piece is abutted to one side wall of the locking block, which is far away from the central axis of the upper steering column;
The outer wall of the upper steering column is provided with an annular flange, and the push rod penetrates through the annular flange and is in sliding fit with the annular flange; the ends of the push rods, which are far away from the locking blocks, are connected with a synchronizing ring, the synchronizing ring is slidably sleeved on the outer wall of the upper steering column, and the push rods are in transmission fit with the air cylinders through the synchronizing ring;
The annular flange is provided with an inner cavity, a first conductive column and a second conductive column are fixedly arranged in the inner cavity, and the first conductive column and the second conductive column are coaxially arranged and are arranged at intervals; a yielding through hole for communicating the inner cavity with the outside is formed in one side of the annular flange, which is close to the synchronous ring, and the yielding through hole points to a gap area between the first conductive column and the second conductive column;
The power supply line of the driving component is in conductive connection with the first conductive column, and the power supply component for supplying power to the driving component is in conductive connection with the second conductive column; and one side of the synchronizing ring, which is close to the annular flange, is provided with a conductive elastic sheet, so that when the cylinder pushes the push rod to push away the locking block, the conductive elastic sheet can be inserted into a gap between the first conductive column and the second conductive column through the abdication through hole, and the first conductive column and the second conductive column are electrically conducted.
2. The steering wheel position adjustment mechanism according to claim 1, wherein the inner wall of the fitting through hole is further rotatably fitted with a rolling post, the rolling post being located on a side of the bore of the fitting through hole remote from the upper steering post, a rotational axis of the rolling post being disposed perpendicular to a sliding direction of the corresponding lock block so that the rolling post can be brought into rolling engagement with the guide wall of the push rod.
3. A novel carting car, comprising: the steering wheel position adjustment mechanism according to any one of claims 1 or 2.
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| CN202010989382.0A CN112046597B (en) | 2020-09-18 | 2020-09-18 | Steering wheel position adjusting mechanism for kart and novel kart |
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| CN116198586A (en) * | 2023-02-04 | 2023-06-02 | 阿尔特汽车技术股份有限公司 | Telescoping Steering Wheel System |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212637639U (en) * | 2020-09-18 | 2021-03-02 | 厦门理工学院 | Steering wheel position adjustment mechanism for kart and new type kart |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3318935C1 (en) * | 1983-05-25 | 1984-12-13 | Daimler-Benz Ag, 7000 Stuttgart | Adjustable steering device for motor vehicles |
| KR100217583B1 (en) * | 1995-12-18 | 1999-09-01 | 정몽규 | Column structure of the steering wheel with adjustable length in the axial direction |
| US5737971A (en) * | 1996-08-05 | 1998-04-14 | General Motors Corporation | Motor vehicle steering column |
| KR100203495B1 (en) * | 1996-11-30 | 1999-06-15 | 양재신 | Steering wheel height adjustment device for vehicle |
| KR20070027998A (en) * | 2005-08-30 | 2007-03-12 | 현대자동차주식회사 | High Frequency Fixed Telescopic Steering Wheel |
| DE102012014762A1 (en) * | 2012-07-25 | 2014-01-30 | Audi Ag | Motor vehicle with retractable steering wheel |
| CN206067859U (en) * | 2016-09-30 | 2017-04-05 | 内蒙古麦酷智能车技术有限公司 | A kind of pilotless automobile steering wheel of adjustable length |
| DE102019201621A1 (en) * | 2019-02-07 | 2020-08-13 | Robert Bosch Gmbh | Adjustable steering column for a motor vehicle |
| CN209921406U (en) * | 2019-04-29 | 2020-01-10 | 吉林大学 | A retractable steering wheel |
| CN211494206U (en) * | 2019-11-15 | 2020-09-15 | 北汽福田汽车股份有限公司 | Steering column and vehicle |
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| CN212637639U (en) * | 2020-09-18 | 2021-03-02 | 厦门理工学院 | Steering wheel position adjustment mechanism for kart and new type kart |
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