CN218662000U

CN218662000U - Novel steering column locking mechanism

Info

Publication number: CN218662000U
Application number: CN202223063236.9U
Authority: CN
Inventors: 安霄; 黄锴; 姚福家
Original assignee: Baic Heavy Truck Co Ltd
Current assignee: Baic Heavy Truck Co Ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-03-21
Anticipated expiration: 2032-11-18

Abstract

The utility model relates to a novel steering column locking mechanism, its characterized in that: including integral key shaft, left clamp plate, fixed pipe, straining device, right clamp plate and handle, the integral key shaft constitute at the shaft left end and rather than the integrated axostylus axostyle portion by shaft portion with setting up, left clamp plate, fixed pipe, straining device, right clamp plate and handle turn right from a left side and install in proper order on shaft portion, handle fixed mounting at the right-hand member of integral key shaft, the integral key shaft along with the handle is together rotatory, straining device and shaft between be connected through the spline fit, straining device along with shaft portion is together rotatory, straining device's one end links to each other with fixed pipe, straining device's the other end links to each other with right clamp plate. The utility model discloses an optimal design makes locking mechanism put in to transmission mode through the spline makes overall structure compact, arranges simply, little in the manipulation, and locking is also more reliable.

Description

Novel steering column locking mechanism

Technical Field

The utility model relates to an automobile parts technical field, specificly relate to a novel steering column locking mechanism.

Background

In the commercial car field, steering column is the essential element who realizes turning to the function, and the primary function is the transmission hand power and adjusts the steering wheel position to guarantee to turn to the realization of function and satisfy driving comfort. In order to adjust the steering column, a locking mechanism needs to be added to the steering column to lock the steering column after the steering column is adjusted in a loose state, so that the steering wheel is prevented from moving, and safety accidents are avoided. The locking mechanism of the current steering column usually adopts a manual mode, the locking mechanism of the current manual mode mainly adopts a mode of thread fastening, the operating force of the mode is overlarge, the reliability is poor, and the requirements can not be met gradually, so that the design of the novel steering column locking mechanism of a pneumatic mode is particularly important.

Disclosure of Invention

The utility model discloses a solve above-mentioned problem and designed a novel steering column locking mechanism, put through optimal design messenger locking mechanism in to the transmission mode through the spline makes overall structure compact, arranges simply, controls lining little, and locking is also more reliable.

In order to solve the technical problem, the utility model provides a novel steering column locking mechanism, its characterized in that: including integral key shaft, left clamp plate, fixed pipe, straining device, right clamp plate and handle, the integral key shaft constitute at the shaft left end and rather than the integrated stub portion by shaft portion and setting, left clamp plate, fixed pipe, straining device, right clamp plate and handle turn right from a left side and install in proper order on shaft portion, handle fixed mounting at the right-hand member of integral key shaft, the integral key shaft along with the handle is together rotatory, straining device and shaft portion between be connected through the spline fit, straining device along with shaft portion is together rotatory, straining device's one end links to each other with fixed pipe, straining device's the other end links to each other with right clamp plate, install stop gear on the shaft portion on right clamp plate right side, right clamp plate press from both sides tightly to be fixed on shaft portion through stop gear and straining device's cooperation, the one end that straining device was kept away from to fixed pipe links to each other with left clamp plate, utilizes straining device and fixed pipe cooperation to push up tightly left clamp plate on stub portion through the rotation.

Further: the utility model discloses a take-up mechanism, including the section of axle pole portion, the section of axle pole portion is located to the middle part of axle pole portion, has seted up first spline groove on the outer wall of middle part department of axle pole portion, spline inslot detachably be connected with the spline, straining device's center department seted up with axle pole portion assorted first through-hole, the one end of axle pole portion pass straining device along first through-hole, seted up on the inner wall of first through-hole with spline assorted second spline groove, through the cooperation of first spline groove and second spline groove and spline with straining device fixed mounting on axle pole portion.

And further: the tensioning mechanism is characterized in that one end of the tensioning mechanism connected with the fixed pipe is in a claw disc assembly, the fixed pipe is formed by connecting a pipe body part and a connecting disc part into a whole in a left-right mode, two balls are further arranged at one end of the claw disc assembly of the tensioning mechanism, a groove with gradually changed semicircular arc depth is formed in the connecting disc part relative to the positions of the two balls, and the depth from one end of the groove to the other end of the groove gradually becomes deep.

And further: still be provided with four limiting plates around straining device's claw dish dress one end, fixed pipe constitute by the body portion and the connection dish portion about fuses, be provided with two stoppers on the outer wall of connection dish portion, two stoppers respectively set up between two limiting plates respectively, prescribe a limit to the rotation between straining device and the fixed pipe through the cooperation of stopper and limiting plate.

And further: the limiting mechanism is a limiting nut, the shaft rod part is provided with an external thread matched with the limiting nut, and the right pressing plate is tightly pressed on the tensioning mechanism through the matching of the limiting nut and the external thread.

After the structure is adopted, the locking mechanism is arranged in the middle through the optimized design, and the whole structure is compact through the transmission mode of the spline, the arrangement is simple, the operation lining is small, and the locking is more reliable; and the design also has the advantages of simple structure, easy manufacture, practicality and high efficiency.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a three-dimensional structure diagram of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a cross-sectional view of the present invention.

Fig. 4 is a structural view of the fixed pipe.

FIG. 5 is a structural view of the spline shaft.

Detailed Description

The novel steering column locking mechanism comprises a spline shaft 1, a left pressing plate 2, a fixing tube 3, a tensioning mechanism 4, a right pressing plate 5 and a handle 6, wherein the spline shaft is composed of a shaft rod part 1-1 and a shaft head part 1-2 which is arranged at the left end of the shaft rod part and is connected with the shaft rod part into a whole, the left pressing plate, the fixing tube, the tensioning mechanism, the right pressing plate and the handle are sequentially installed on the shaft rod part from left to right, the handle is fixedly installed at the right end of the spline shaft, the spline shaft rotates along with the handle, the tensioning mechanism is connected with the shaft rod part through spline matching, the tensioning mechanism rotates along with the shaft rod part, one end of the tensioning mechanism is connected with the fixing tube, the other end of the tensioning mechanism is connected with the right pressing plate, a limiting mechanism is installed on the shaft rod part on the right side of the right pressing plate, the right pressing plate is tightly fixed on the shaft rod part through the matching of the limiting mechanism and the tensioning mechanism, one end of the fixing tube, and the left pressing plate is tightly pressed on the shaft head part through the matching of the fixing tube through the rotation. The utility model has the advantages that the locking mechanism is arranged in the middle through the optimized design, the whole structure is compact through the transmission mode of the spline, the arrangement is simple, the operation is small, and the locking is more reliable; and the design also has the advantages of simple structure, easy manufacture, practicality and high efficiency.

As shown in fig. 3 and 5, the outer wall of the middle section of the shaft part is provided with first spline grooves 1-3, the spline grooves are detachably connected with splines, the center of the tensioning mechanism is provided with a first through hole matched with the shaft part, one end of the shaft part penetrates through the tensioning mechanism along the first through hole, the inner wall of the first through hole is provided with a second spline groove matched with the splines, and the tensioning mechanism is fixedly installed on the shaft part through the matching of the first spline grooves, the second spline groove and the splines.

As shown in fig. 2 and 4, one end of the tensioning mechanism connected with the fixed pipe is in a claw disc assembly, the fixed pipe is formed by connecting a pipe body part 3-1 and a connecting disc part 3-2 into a whole in a left-right mode, two balls 4-1 are further arranged at one end of the claw disc assembly of the tensioning mechanism, grooves with gradually-changed semicircular arc depths are formed in the connecting disc part corresponding to the two balls, and the depths from one end of each groove to the other end of each groove gradually become deeper.

As shown in fig. 2 and 4, four limiting plates 4-2 are further arranged around one end of the claw disk of the tensioning mechanism, the fixed pipe is formed by connecting a pipe body part 3-1 and a connecting disk part 3-2 into a whole in a left-right mode, two limiting blocks 3-3 are arranged on the outer wall of the connecting disk part and are respectively arranged between the two limiting plates, and rotation between the tensioning mechanism and the fixed pipe is limited through matching of the limiting blocks and the limiting plates.

The limiting mechanism shown in fig. 1, 3 and 5 is a limiting nut 7, the shaft part is provided with an external thread matched with the limiting nut, and the right pressing plate is tightly pressed on the tensioning mechanism through the matching of the limiting nut and the external thread.

The utility model discloses adopt spline fit between well straining device and the screw rod, fixed pipe passes through left clamp plate restriction axial and rotates, and straining device one end is closely laminated with right clamp plate, controls the clamp plate and is the mounting. After the spline shaft is locked with the handle, the handle is operated to rotate, torque is transmitted to the tensioning mechanism through the spline of the spline shaft, the tensioning mechanism rotates, balls on the tensioning mechanism roll out of the groove of the fixing pipe to the end face, axial thrust is generated, the tensioning mechanism is pushed to the left pressing plate, when the balls roll onto the end face plane of the fixing pipe, the tensioning force reaches a certain degree, and at the moment, the whole mechanism is in a friction locking state.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that various modifications and decorations can be made by those skilled in the art without departing from the principle of the present invention, and the scope of the present invention should be considered as the protection scope of the present invention.

Claims

1. A novel steering column locking mechanism is characterized in that: including integral key shaft (1), left clamp plate (2), fixed pipe (3), straining device (4), right clamp plate (5) and handle (6), the integral key shaft constitute by shaft lever portion (1-1) and setting at the shaft lever portion left end and rather than the axostylus axostyle portion (1-2) of even as an organic whole, left clamp plate, fixed pipe, straining device, right clamp plate and handle turn right from a left side and install in proper order on the shaft lever portion, handle fixed mounting at the right-hand member of integral key shaft, the integral key shaft along with the handle corotation, straining device and shaft lever portion between be connected through the spline fit, straining device along with the shaft lever portion is together rotatory, straining device's one end links to each other with fixed pipe, straining device's the other end links to each other with right clamp plate, install stop gear on the shaft lever portion on right clamp plate right side, right clamp plate press from the tight fixing to the shaft lever portion through stop gear and straining device's cooperation, the one end that straining device was kept away from to fixed pipe links to each other with left clamp plate top tightly on the axostylus axostyle portion through rotatory utilization straining device and fixed pipe cooperation.

2. The novel steering column locking mechanism of claim 1, wherein: the outer wall of the middle section of the shaft rod part is provided with a first spline groove (1-3), the spline groove is internally detachably connected with a spline, the center of the tensioning mechanism is provided with a first through hole matched with the shaft rod part, one end of the shaft rod part penetrates through the tensioning mechanism along the first through hole, the inner wall of the first through hole is provided with a second spline groove matched with the spline, and the tensioning mechanism is fixedly installed on the shaft rod part through the matching of the first spline groove and the second spline groove with the spline.

3. A novel steering column locking mechanism according to any one of claims 1 or 2, characterized in that: the tensioning mechanism is characterized in that one end of the tensioning mechanism connected with the fixed pipe is in a claw disc type, the fixed pipe is formed by connecting a pipe body part (3-1) and a connecting disc part (3-2) into a whole in a left-right mode, two balls (4-1) are further arranged at one end of the claw disc type of the tensioning mechanism, a groove with gradually changed semicircular arc depth is formed in the connecting disc part relative to the two balls, and the depth from one end of the groove to the other end of the groove gradually becomes deep.

4. The novel steering column locking mechanism according to claim 1, characterized in that: four limiting plates (4-2) are further arranged around one end of the claw disc of the tensioning mechanism, the fixed pipe is formed by connecting a pipe body part (3-1) and a connecting disc part (3-2) into a whole in a left-right mode, two limiting blocks (3-3) are arranged on the outer wall of the connecting disc part and are respectively arranged between the two limiting plates, and rotation between the tensioning mechanism and the fixed pipe is limited through matching of the limiting blocks and the limiting plates.

5. The novel steering column locking mechanism according to claim 1, characterized in that: the limiting mechanism is a limiting nut (7), the shaft rod part is provided with an external thread matched with the limiting nut, and the right pressing plate is tightly pressed on the tensioning mechanism through the matching of the limiting nut and the external thread.