CN211032274U - Handrail anticreep mounting structure - Google Patents
Handrail anticreep mounting structure Download PDFInfo
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- CN211032274U CN211032274U CN201921293095.5U CN201921293095U CN211032274U CN 211032274 U CN211032274 U CN 211032274U CN 201921293095 U CN201921293095 U CN 201921293095U CN 211032274 U CN211032274 U CN 211032274U
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Abstract
The utility model discloses a handrail anticreep mounting structure sets up to constitute by pivot portion and spacing portion through the first end with the pivot to set up the assembly breach in the first shaft hole of intercommunication on first handrail support, the cooperation locating part has realized that the two sides of countershaft are spacing. Receive the impact and lead to first or second handrail support when out of shape at car seat, as long as the pivot is not in and deviate from the angle, utilize the limiting displacement of spacing boss, can prevent effectively that the first end of pivot from deviating from the primary shaft hole, avoid the handrail pine to take off and cause the condition of injury to the passenger, and the pivot is in when the accident and deviates from the probability of angle very low, and can be according to the angle design of will deviating from the angle for the handrail is the angle that the most probably stops of specific car seat model. The utility model discloses the pivot that can avoid the handrail breaks away from the condition of first or second handrail support in the car seat use, has stopped the potential safety hazard, ensures the security of car seat handrail that can overturn.
Description
Technical Field
The utility model relates to a car seat, specifically speaking are handrail anticreep mounting structure.
Background
The automobile seat is one of important safety parts on an automobile, provides riding comfort for passengers, and simultaneously must meet the requirement of national safety regulations to achieve the purpose of protecting the safety of the passengers. The seat armrests mainly provide support for the arms of passengers, and the long-term riding comfort is improved.
Most car seat that provides on the market at present can overturn handrail and adopt the spacing mounting means of unilateral, promptly: as shown in fig. 1, a first armrest support 1 and a second armrest support 2 are arranged on an automobile seat frame at intervals, and both the first armrest support 1 and the second armrest support 2 are provided with shaft holes, which are respectively marked as a first shaft hole 1a and a second shaft hole 2 a; a rotating shaft 4 is fixed on the handrail 3, a first end 4-1 of the rotating shaft 4 is a polished rod end, a second end 4-2 is a threaded end, and the handrail 3 and the rotating shaft 4 are arranged in a spacing space between the first handrail support 1 and the second handrail support 2; the polished rod end of the rotating shaft 4 penetrates through the first shaft hole 1a and is rotatably installed in the first shaft hole 1a, the threaded end is in threaded connection with the limiting piece 5, the limiting piece 5 is located on the outer side of the second handrail support 2, the threaded end is rotatably installed in the second shaft hole 2a, and the rotating shaft 4 is axially limited on one side, namely the second end 4-2 of the rotating shaft 4 is axially limited by the limiting piece 5 and cannot be separated from the second shaft hole 2a, and the first end 4-1 of the rotating shaft 4 adopts the polished rod end and is not subjected to limiting treatment.
The installation steps of the unilateral limiting installation mode of the turnable armrest of the automobile seat are as follows:
firstly, welding a first armrest support 1 and a second armrest support 2 which are arranged at intervals on an automobile seat framework in advance, wherein the first armrest support 1 is close to the automobile seat framework, and the second armrest support 2 is positioned on the outer side of the automobile seat framework; after the filler and the skin of the automobile seat are assembled, the armrest 3 is installed;
step two, adopting the handrail 3 fixed with the rotating shaft 4;
thirdly, placing the handrail 3 and the rotating shaft 4 in a spacing space between the first handrail support 1 and the second handrail support 2 in a state that the rotating shaft 4 is inclined so as to enable the polished rod end of the rotating shaft 4 to pass through the first shaft hole 1a and enable the threaded end to be aligned with the second shaft hole 2 a;
and step four, placing the limiting piece 5 at the outer side of the second handrail support 2, and connecting the limiting piece 5 with the thread end of the rotating shaft 4 in a threaded manner, so that the end of the polished rod and the thread end can be respectively rotatably installed in the first shaft hole 1a and the second shaft hole 2 a.
The unilateral limiting installation mode of the turnable armrest of the automobile seat has the following defects: when the car seat receives the impact, probably can lead to the deformation of car seat skeleton for the spacing distance increase between first handrail support 1 and the second handrail support 2, and the polished rod tip of pivot 4 is owing to do not do spacing processing, deviates from first shaft hole 1a of first handrail support 1 very easily, leads to the installation of handrail 3 to take place to damage, and fixes the metalwork on handrail 3 and expose the surface of car seat, thereby probably lead to the fact serious injury to the passenger, have comparatively serious potential safety hazard.
To solve the potential safety hazard problem of the above-mentioned unilateral spacing mounting means, general thinking is, adopts bilateral spacing mounting means, promptly: as shown in fig. 2, on the basis of the unilateral limit installation mode, the first end portion 4-1 of the rotating shaft 4 is also changed into a threaded end portion, and the second limiting member 6 located at the outer side of the first armrest support 1 is fixedly connected with the first end portion 4-1, so that the first end portion 4-1 is limited in the axial direction, and the problem that the end portion of the rotating shaft is easy to separate from the first shaft hole 1a when the automobile seat is impacted in the unilateral limit installation mode is solved.
However, in the prior art, most of the turnable armrests of the car seat adopt a single-side limiting installation mode, and do not limit the first end 4-1 of the rotating shaft 4 according to the above general idea, because: the first armrest support 1 is close to the automobile seat framework, and after the filler and the skin of the automobile seat are assembled, the interval between the first armrest support 1 and the automobile seat framework is very small or even has no interval, so if the installation of the rotating shaft 4 is performed in the double-side limiting installation mode according to the installation steps of the single-side limiting installation mode, in step three, the second limiting part 6 cannot be arranged between the first armrest support 1 and the automobile seat framework due to the fact that the first armrest support 1 and the automobile seat framework have no enough space, and the fixed connection between the second limiting part 6 and the first end part 4-1 cannot be realized.
Therefore, as shown in fig. 2, in order to solve the above-mentioned problem that the second limiting member 6 cannot be connected to the first end portion 4-1 in the prior art, the double-side limiting installation method of the convertible armrest of the car seat needs to integrate the first armrest support 1 and the second armrest support 2, and the installation steps of the double-side limiting installation method are changed as follows:
step one, a first handrail support 1 and a second handrail support 2 which are connected into a whole through a connecting plate 7 are adopted and are marked as handrail mounting frames;
step two, adopting the handrail 3 fixed with the rotating shaft 4;
thirdly, placing the handrail 3 and the rotating shaft 4 in a spacing space between the first handrail support 1 and the second handrail support 2 in a state that the rotating shaft 4 is inclined, so that the first end part 4-1 of the rotating shaft 4 passes through the first shaft hole 1a, and the second end part 4-2 can be aligned with the second shaft hole 2 a;
fourthly, placing the limiting piece 5 at the outer side of the second handrail support 2, and connecting and fixing the limiting piece 5 and the second end part 4-2;
placing the second limiting piece 6 at the outer side of the first handrail support 1, and connecting and fixing the second limiting piece 6 and the first end portion 4-1, so that the first end portion 4-1 and the second end portion 4-2 are rotatably connected with the first shaft hole 1a and the second shaft hole 2a respectively;
step six, after the filler and the skin of the automobile seat are assembled, the assembled first armrest support 1, the assembled second armrest support 2, the assembled connecting plate 7, the assembled armrest 3, the assembled rotating shaft 4, the assembled limiting part 5 and the assembled second limiting part 6 are installed on the automobile seat together, and the concrete mode is as follows:
and sixthly, adopting the filler and the skin with the turnover handrail mechanism for installing the avoidance port, so that: after the filler and the skin of the automobile seat are assembled, the installation position for connecting the armrest installation frame on the automobile seat framework is exposed out of the installation avoiding opening of the turnover armrest mechanism;
step two, fixedly connecting the armrest mounting frame to a mounting position of an automobile seat framework;
and sixthly, mounting the plastic guard plate on the automobile seat to shield the handrail mounting frame and the installation avoiding opening of the turnover handrail mechanism, so that potential safety hazards caused by exposure of metal parts on the surface of the automobile seat are avoided, and the appearance of the automobile seat is kept attractive.
To sum up, the two-side limiting installation mode and the installation steps of the turnable armrest of the automobile seat have the following defects:
first, the cost of the double-sided limit mounting approach is a large step up relative to the single-sided limit mounting approach for two reasons: firstly, because the armrest mounting frame needs to be fixedly connected to the automobile seat framework through riveting, bolting and the like, and a welding mode of a unilateral limiting mounting mode cannot be adopted, the armrest mounting frame needs to be designed to have higher strength, which can increase cost; secondly, the addition of the plastic guard plate requires corresponding special design of the car seat frame, the filler and the skin for the installation of the plastic guard plate besides the cost of the plastic guard plate, which increases more cost.
Secondly, compared with a unilateral limit installation mode, the installation steps of the bilateral limit installation mode are more complicated, and time is consumed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the utility model provides a handrail anticreep mounting structure to the two side spacing mounting means of car seat handrail that can overturn among the solution prior art, compare in the unilateral spacing mounting means of mainstream, have the cost increase range great, the more loaded down with trivial details more problem that consumes time of installation step.
Solve above-mentioned technical problem, the utility model discloses the technical scheme who adopts as follows:
an anti-drop handrail mounting structure is provided with a first handrail support, a second handrail support, a handrail, a rotating shaft and a limiting piece; the first armrest support and the second armrest support are both fixed on an automobile seat framework, the first armrest support is closer to the middle position of an automobile seat than the second armrest support, the first armrest support is provided with a first shaft hole, and the second armrest support is provided with a second shaft hole; the handrails and the rotating shaft are fixed and are uniformly distributed in a spacing space between the first handrail support and the second handrail support; the first end part of the rotating shaft is in rotatable fit with the first shaft hole, and the second end part of the rotating shaft is in rotatable fit with the second shaft hole; the limiting piece is positioned on the outer side of the second handrail support and is fixedly connected with the second end part of the rotating shaft;
the method is characterized in that:
the first handrail support is provided with an assembly notch communicated with the first shaft hole;
the first end part of the rotating shaft is formed by connecting a rotating shaft part and a limiting part, and the limiting part is provided with a limiting boss which is convex relative to the rotating shaft part in the radial direction of the rotating shaft;
the rotating shaft part is in rotatable fit with the first shaft hole, and the limiting part is positioned on the outer side of the first handrail support;
and, spacing boss and assembly breach phase-match for: when the rotating shaft rotates to a disengaging angle, the limiting boss moves along the axial direction of the rotating shaft and can pass through the assembling gap; when the rotating shaft rotates away from the separation angle, the first handrail support blocks the limiting boss from moving along the axial direction of the rotating shaft.
Thereby, receive the impact and lead to first handrail support or second handrail support when warping at car seat, as long as the pivot is not in and deviate from the angle, utilize the limiting displacement of spacing boss, the first shaft hole of first handrail support is deviate from to the first tip that can effectively prevent the pivot, avoid the handrail pine to take off and lead to the fact the condition of injury to the passenger, and on the one hand, the pivot is in when taking place the accident that the probability of deviating from the angle is very low, on the other hand, can be according to specific car seat model will deviate from the angle design that the angle is handrail probably stopped at the least, consequently, the utility model discloses can avoid the pivot of handrail to break away from the condition of first handrail support or second handrail support in car seat use, stopped the potential safety hazard, ensure the security that car seat can overturn the handrail.
As a preferred embodiment of the present invention: the limiting part of the rotating shaft is of a flat head structure, the flat head structure is provided with two parallel tangent planes, and the distance between the two tangent planes is smaller than the diameter of the rotating shaft part.
Thereby, can reduce with spacing portion assorted assembly notch's size to reduce to set up the structural strength influence of assembly notch to first handrail support.
As a preferred embodiment of the present invention: the first handrail support is provided with two assembling notches which are symmetrically arranged; the limiting part of the rotating shaft is provided with two limiting bosses matched with the two assembling notches.
As a preferred embodiment of the present invention: the rotatable installation of pivot portion is in the first shaft hole, just be equipped with the bush between pivot portion and the first shaft hole, this bush is equipped with and is used for spacing portion passes through the breach to reduce the friction between pivot portion and the first shaft hole.
As a preferred embodiment of the present invention: the handrail anti-falling mounting structure is further provided with a cover plate and a limiting pin, the cover plate is fixedly connected to the inner side of the first handrail support, the cover plate is provided with a cover plate arc-shaped limiting groove and a cover plate through hole for the first end to pass through, and the first handrail support is provided with a support arc-shaped limiting groove; the limiting pin is fixed with the handrail, and the limiting pin penetrates through the cover plate arc-shaped limiting groove and the support arc-shaped limiting groove.
Thereby, can utilize the cooperation of spacer pin and support arc spacing groove, carry on spacingly to the upset angle of handrail, and the spacer pin passes apron arc spacing groove, then can utilize the apron to form the resistance to the upset of handrail for the handrail can remain stable at the driving in-process.
Preferably: the bushing and the cover plate are integrally formed, the cover plate is fixedly connected to the inner side of the first handrail support in a buckle connection mode, and the cover plate through hole of the cover plate is communicated with the notch of the bushing.
As a preferred embodiment of the present invention: the end face of the second end part of the rotating shaft is provided with a threaded hole, the limiting part is a bolt, and the bolt consists of a screw rod part, a shaft rod part and a head part which are sequentially connected; the screw rod part is fixedly connected with the threaded hole in a threaded manner, the shaft rod part is rotatably arranged in the second shaft hole, and the head part is positioned on the outer side of the second handrail support and plays a role in limiting.
As a preferred embodiment of the present invention: a rivet hole is formed in the end face of the second end of the rotating shaft, and the limiting piece is a rivet; the rivet rod of the rivet is riveted with the rivet hole, and the head of the rivet is positioned on the outer side of the second handrail support to play a limiting role.
Preferably: the first armrest support and the second armrest support are both welded to the automobile seat framework.
As a preferred embodiment of the present invention: when the armrest is in a retracted state, the rotating shaft rotates to the pull-out angle, and when the armrest is in an opened state, the rotating shaft leaves the pull-out angle.
Therefore, when the automobile seat back is impacted, if the armrests are not used and are in the retracted state, due to the constraint of the seat back, the rotation speed of the armrests can be faster than that of the seat back, so that the armrests can be opened forwards, the rotating shaft is forced to be away from the disengaging angle, and the rotating shaft is further ensured not to be disengaged from the first armrest support or the second armrest support.
As a preferred embodiment of the present invention: the first end part and the second end part are two ends of one rotating shaft, or the rotating shaft comprises two split rotating shafts which are coaxially arranged, and the first end part and the second end part are the end parts of the two split rotating shafts respectively.
Compared with the prior art, the utility model discloses following beneficial effect has:
first, the utility model discloses a set up the first end of pivot to constitute by pivot portion and spacing portion to set up the assembly breach in the first shaft hole of intercommunication on first handrail support, the cooperation locating part has realized that two sides of countershaft are spacing, makes: when the automobile seat is impacted to cause the deformation of the first armrest support or the second armrest support, as long as the rotating shaft is not at a disengaging angle, the first end part of the rotating shaft can be effectively prevented from disengaging from the first shaft hole of the first armrest support by utilizing the limiting effect of the limiting boss, the situation that the armrest is loosened and hurt to passengers is avoided, on one hand, the probability that the rotating shaft is at the disengaging angle when an accident occurs is very low, and on the other hand, the disengaging angle can be designed into the angle at which the armrest is least likely to stop according to the specific automobile seat model, therefore, the utility model discloses the situation that the rotating shaft of the armrest is disengaged from the first armrest support or the second armrest support in the use process of the automobile seat can be avoided, the potential safety hazard is avoided, and the safety of the turnable armrest of the;
secondly, on one hand, the utility model does not need to use the space between the first handrail support and the automobile seat framework in the assembling process, thereby avoiding the problem that the assembling process can not be smoothly carried out because the space between the first handrail support and the automobile seat framework is too small or even has no space; on the other hand, after the filler and the skin of the automobile seat are assembled, the armrests, the rotating shafts and the limiting pieces can be installed on the first armrest support and the second armrest support which are fixed on the automobile seat framework in advance, so that the problems that the cost is greatly increased, the installation steps are complicated and time-consuming due to the fact that the strength of the armrest installation framework needs to be improved, the plastic guard plates need to be additionally arranged and the automobile seat framework, the filler and the skin are correspondingly specially designed for the installation of the plastic guard plates in the existing double-side limiting installation mode are solved;
third, the utility model discloses when being in the state of packing up with the handrail, the angle at pivot place does deviate from the angle, when car seat back received the impact, if the handrail is not in the state of packing up by using two, because there is the restraint in the seat back, the rotation rate of handrail can be faster than the seat back, leads to the handrail can be opened forward, forces the pivot leaves deviate from the angle, has further ensured the pivot can not break away from first handrail support or second handrail support.
To sum up, the utility model discloses have the advantage of security height, low cost, easy installation concurrently.
Drawings
The invention will be described in further detail with reference to the following drawings and specific embodiments:
FIG. 1 is a schematic view of a prior art one-side limit mounting structure of a reversible armrest of an automobile seat;
FIG. 2 is a schematic diagram of a double-side limit installation structure of a reversible armrest of an automobile seat in the prior art;
fig. 3 is a schematic view of a cross-sectional structure of the handrail anti-disengaging mounting structure of the present invention when the rotating shaft 4 rotates to a disengaging angle;
fig. 4 is a schematic view of a cross-sectional structure of the handrail anti-disengaging mounting structure of the present invention when the rotating shaft 4 rotates away from the disengaging angle;
fig. 5 is an exploded view of the first handrail support 1, the rotating shaft 4, the bushing 9 and the cover plate 10 of the present invention.
Detailed Description
The present invention will be described in detail with reference to the following embodiments and the accompanying drawings to help those skilled in the art to better understand the concept of the present invention, but the scope of the claims of the present invention is not limited to the following embodiments, and all other embodiments obtained without creative work for those skilled in the art will fall within the scope of the present invention without departing from the scope of the present invention.
Example one
As shown in fig. 3 to 5, the utility model discloses a handrail anti-drop mounting structure, which is provided with a first handrail support 1, a second handrail support 2, a handrail 3, a rotating shaft 4 and a limiting piece 5; the first armrest support 1 and the second armrest support 2 are both fixed on an automobile seat framework, the first armrest support 1 is closer to the middle position of an automobile seat than the second armrest support 2, the first armrest support 1 is provided with a first shaft hole 1a, and the second armrest support 2 is provided with a second shaft hole 2 a; the handrail 3 and the rotating shaft 4 are fixed and are uniformly arranged in a spacing space between the first handrail support 1 and the second handrail support 2; the first end part 4-1 of the rotating shaft 4 is rotatably matched with the first shaft hole 1a, and the second end part 4-2 is rotatably matched with the second shaft hole 2 a; the limiting piece 5 is located at the outer side of the second handrail support 2 and is fixedly connected with the second end portion 4-2 of the rotating shaft 4;
the position-limiting member 5 is located outside the second armrest support 2, and includes two situations: firstly, the armrest 3 is a right armrest located on the right side of the car seat frame, referring to fig. 3, the middle position of the first armrest support 1 closer to the car seat than the second armrest support 2 means that the first armrest support 1 is located on the left side of the second armrest support 2, in this case, the limiting member 5 is located on the right side of the second armrest support 2; secondly, the armrest 3 is a left armrest not shown in the drawing, which is located on the left side of the car seat frame, and is equivalent to left-right symmetrical turning of fig. 3, the middle position of the first armrest support 1 closer to the car seat than the second armrest support 2 means that the first armrest support 1 is located on the right side of the second armrest support 2, and in this case, the limiting member 5 is located on the left side of the second armrest support 2.
The first handrail support 1 is provided with an assembly notch 1c communicated with the first shaft hole 1 a;
the first end part 4-1 of the rotating shaft 4 is formed by connecting a rotating shaft part 4-1-1 and a limiting part 4-1-2, and the limiting part 4-1-2 is provided with a limiting boss 4-1-2a which protrudes relative to the rotating shaft part 4-1-1 in the radial direction of the rotating shaft 4;
the rotating shaft part 4-1-1 is in rotatable fit with the first shaft hole 1a, and the limiting part 4-1-2 is positioned at the outer side of the first handrail bracket 1;
and, the limit boss 4-1-2a is matched with the assembly notch 1c, so that: when the rotating shaft 4 rotates to a disengaging angle, the limiting boss 4-1-2a moves along the axial direction of the rotating shaft 4 and can pass through the assembling gap 1 c; when the rotating shaft 4 rotates away from the disengaging angle, the first handrail support 1 blocks the limiting boss 4-1-2a from moving along the axial direction of the rotating shaft 4.
Therefore, when the first armrest support 1 or the second armrest support 2 is deformed due to the impact on the vehicle seat, as long as the rotating shaft 4 is not in the disengaging angle, by utilizing the limiting function of the limiting lug boss 4-1-2a, the first end part 4-1 of the rotating shaft 4 can be effectively prevented from being separated from the first shaft hole 1a of the first handrail support 1, the situation that the handrail is loosened and hurts passengers is avoided, on one hand, the probability that the rotating shaft 4 is at the angle of separation when an accident occurs is very low, and on the other hand, the escape angle can be designed according to the specific car seat model as the angle at which the armrest 3 is least likely to stay, therefore, the utility model discloses can avoid the pivot 4 of handrail 3 to break away from the condition of first handrail support 1 or second handrail support 2 in the car seat use, stop the potential safety hazard, ensure the security of car seat handrail that can overturn.
The above is a basic implementation manner of the first embodiment, and further optimization, improvement and limitation may be performed on the basis of the basic implementation manner:
preferably: the first armrest support 1 and the second armrest support 2 are welded on the automobile seat framework.
The utility model also discloses an anti-drop mounting method of the turnable handrail of the automobile seat, which is used for assembling the handrail anti-drop mounting structure;
the anti-drop installation method comprises the following steps:
step S1, a first armrest support 1 and a second armrest support 2 are fixed on an automobile seat framework in advance, wherein the first armrest support 1 is closer to the middle position of an automobile seat than the second armrest support 2, the first armrest support 1 is provided with a first shaft hole 1a, the first armrest support 1 is provided with an assembly notch 1c communicated with the first shaft hole 1a, and the second armrest support 2 is provided with a second shaft hole 2 a;
then, after the filler and the skin of the car seat are assembled, the following steps S2 to S4 are performed;
step S2, a handrail 3 fixed with a rotating shaft 4 is adopted, wherein two ends of the rotating shaft 4 are respectively marked as a first end part 4-1 and a second end part 4-2, the first end part 4-1 of the rotating shaft 4 is formed by connecting a rotating shaft part 4-1-1 and a limiting part 4-1-2, and the limiting part 4-1-2 is provided with a limiting boss 4-1-2a protruding relative to the rotating shaft part 4-1-1 in the radial direction of the rotating shaft 4;
step S3, the armrest 3 and the rotating shaft 4 are placed in the space between the first armrest support 1 and the second armrest support 2, and the first end 4-1 of the rotating shaft 4 is mounted in the first shaft hole 1a, that is: the limiting part 4-1-2 penetrates through the first shaft hole 1a, wherein the limiting boss 4-1-2a penetrates through the assembly notch 1c, so that: the rotating shaft part 4-1-1 is in rotatable fit with the first shaft hole 1a, the limiting part 4-1-2 is positioned at the outer side of the first handrail bracket 1, and the second end part 4-2 of the rotating shaft 4 is aligned with the second shaft hole 2 a;
step S4, placing the limiting member 5 on the outer side of the second armrest support 2, and using the limiting member 5 to be fixedly connected to the second end 4-2 of the rotating shaft 4, so that the second end 4-2 is rotatably connected to the second shaft hole 2 a;
wherein, spacing boss 4-1-2a and assembly breach 1c phase-match make: when the rotating shaft 4 rotates to a disengaging angle, the limiting boss 4-1-2a moves along the axial direction of the rotating shaft 4 and can pass through the assembling gap 1 c; when the rotating shaft 4 rotates away from the disengaging angle, the first handrail support 1 blocks the limiting boss 4-1-2a from moving along the axial direction of the rotating shaft 4.
Therefore, the utility model is assembled according to the sequence from the step S1 to the step S4, on one hand, the space between the first armrest support 1 and the automobile seat frame is not needed in the assembly process, and the problem that the assembly process cannot be smoothly carried out due to the small space or even no space between the first armrest support 1 and the automobile seat frame is avoided; on the other hand, after the filler and the skin of the automobile seat are assembled, the armrest 3, the rotating shaft 4 and the limiting piece 5 are installed on the first armrest support 1 and the second armrest support 2 which are fixed on the automobile seat framework in advance, namely the steps S2 to S4, the problems that the strength of the armrest installation framework needs to be improved, the plastic guard plate needs to be additionally arranged, and the automobile seat framework, the filler and the skin are correspondingly and specially designed for the installation of the plastic guard plate are solved, so that the cost is greatly increased, the installation steps are complicated and time-consuming are solved.
To sum up, the utility model discloses have the advantage of security height, low cost, easy installation concurrently.
Example two
On the basis of the first embodiment, the second embodiment also adopts the following preferred embodiments:
the limiting part 4-1-2 of the rotating shaft 4 is of a flat head structure, the flat head structure is provided with two mutually parallel tangent planes, and the distance between the two tangent planes is smaller than the diameter of the rotating shaft part 4-1-1.
Therefore, the size of the assembly notch 1c matched with the limiting part 4-1-2 can be reduced, so that the influence of the arrangement of the assembly notch 1c on the structural strength of the first handrail support 1 is reduced.
EXAMPLE III
On the basis of the first embodiment or the second embodiment, the third embodiment further adopts the following preferred embodiments:
the first handrail support 1 is provided with two assembly notches 1c, and the two assembly notches 1c are symmetrically arranged; the limiting part 4-1-2 of the rotating shaft 4 is provided with two limiting bosses 4-1-2a matched with the two assembling notches 1 c.
Example four
On the basis of any one of the first to third embodiments, the fourth embodiment further adopts the following preferred embodiments:
as shown in fig. 3 to 5, the rotating shaft 4-1-1 is rotatably mounted in the first shaft hole 1a, and a bushing 9 is provided between the rotating shaft 4-1-1 and the first shaft hole 1a, the bushing 9 being provided with a notch 9a for passing the stopper 4-1-2, so as to reduce friction between the rotating shaft 4-1-1 and the first shaft hole 1 a.
On the premise that the requirement of friction force can be met, the bush 9 can be omitted.
EXAMPLE five
On the basis of any one of the first to fourth embodiments, the fifth embodiment further adopts the following preferred embodiments:
as shown in fig. 3 to 5, the handrail anti-drop mounting structure is further provided with a cover plate 10 and a limiting pin 11, the cover plate 10 is fixedly connected to the inner side of the first handrail support 1, the cover plate 10 is provided with a cover plate arc-shaped limiting groove 10a and a cover plate via hole 10b for the first end portion 4-1 to pass through, and the first handrail support 1 is provided with a support arc-shaped limiting groove 1 b; the limit pin 11 is fixed with the handrail 3, and the limit pin 11 passes through the cover plate arc-shaped limit groove 10a and the support arc-shaped limit groove 1 b.
Therefore, the limit pin 11 and the support arc-shaped limit groove 1b can be matched to limit the turnover angle of the handrail 3, the limit pin 11 penetrates through the cover plate arc-shaped limit groove 10a, resistance can be formed by the cover plate 10 in turnover of the handrail 3, and the handrail 3 can be kept stable in the driving process.
The above is the basic implementation of the fifth embodiment, and further optimization, improvement and limitation may be performed on the basis of the basic implementation:
preferably: the bush 9 and the cover plate 10 are integrally formed, the cover plate 10 is fixedly connected to the inner side of the first armrest support 1 in a buckling connection mode, and a cover plate through hole 10b of the cover plate 10 is communicated with the notch 9a of the bush 9.
EXAMPLE six
On the basis of any one of the first to fifth embodiments, the sixth embodiment further adopts the following preferred embodiments:
as shown in fig. 3, a threaded hole 4-2a is formed in an end face of a second end portion 4-2 of the rotating shaft 4, the limiting member 5 is a bolt, and the bolt is composed of a screw rod portion 5-1, a shaft rod portion 5-2 and a head portion 5-3 which are connected in sequence; the screw rod part 5-1 is fixedly connected with the threaded hole 4-2a in a threaded manner, the shaft rod part 5-2 is rotatably arranged in the second shaft hole 2a, and the head part 5-3 is positioned on the outer side of the second handrail support 2 and plays a limiting role.
EXAMPLE seven
On the basis of any one of the first to sixth embodiments, the seventh embodiment further adopts the following preferred embodiments:
a rivet hole is formed in the end face of the second end portion 4-2 of the rotating shaft 4, and the limiting piece 5 is a rivet; the rivet rod of the rivet is riveted with the rivet hole, and the head of the rivet is positioned on the outer side of the second handrail support 2 to play a limiting role.
Example eight
On the basis of any one of the first to seventh embodiments, the eighth embodiment further adopts the following preferred embodiments:
when the armrest 3 is in the retracted state, the rotating shaft 4 rotates to the pull-out angle, and when the armrest 3 is in the opened state, the rotating shaft 4 leaves the pull-out angle.
Therefore, when the backrest of the car seat is impacted, if the armrest 3 is not used and is in the stowed state, the rotation speed of the armrest 3 is faster than that of the backrest due to the constraint of the backrest, so that the armrest 3 can be opened forwards, the rotating shaft 4 is forced to leave the escape angle, and the rotating shaft 4 is further ensured not to be disengaged from the first armrest support 1 or the second armrest support 2.
Example nine
On the basis of any one of the first to eighth embodiments, the ninth embodiment further adopts the following preferred embodiments:
the first end portion 4-1 and the second end portion 4-2 are two ends of one rotating shaft 4, or the rotating shaft 4 includes two split rotating shafts coaxially arranged, and the first end portion 4-1 and the second end portion 4-2 are end portions of the two split rotating shafts respectively.
The present invention is not limited to the above-mentioned embodiments, and according to the above-mentioned contents, according to the common technical knowledge and conventional means in the field, without departing from the basic technical idea of the present invention, the present invention can also make other equivalent modifications, replacements or changes in various forms, all falling within the protection scope of the present invention.
Claims (10)
1. A handrail anti-drop mounting structure is provided with a first handrail support (1), a second handrail support (2), a handrail (3), a rotating shaft (4) and a limiting piece (5); the first armrest support (1) and the second armrest support (2) are fixed on an automobile seat framework, the first armrest support (1) is closer to the middle position of an automobile seat than the second armrest support (2), the first armrest support (1) is provided with a first shaft hole (1a), and the second armrest support (2) is provided with a second shaft hole (2 a); the handrails (3) and the rotating shaft (4) are fixed and are uniformly arranged in a spacing space between the first handrail support (1) and the second handrail support (2); the first end part (4-1) of the rotating shaft (4) is in rotatable fit with the first shaft hole (1a), and the second end part (4-2) is in rotatable fit with the second shaft hole (2 a); the limiting piece (5) is positioned on the outer side of the second handrail support (2) and is fixedly connected with the second end (4-2) of the rotating shaft (4);
the method is characterized in that:
the first handrail support (1) is provided with an assembly notch (1c) communicated with the first shaft hole (1 a);
the first end part (4-1) of the rotating shaft (4) is formed by connecting a rotating shaft part (4-1-1) and a limiting part (4-1-2), and the limiting part (4-1-2) is provided with a limiting boss (4-1-2a) which protrudes relative to the rotating shaft part (4-1-1) in the radial direction of the rotating shaft (4);
the rotating shaft part (4-1-1) is in rotatable fit with the first shaft hole (1a), and the limiting part (4-1-2) is positioned on the outer side of the first handrail support (1);
and the limit boss (4-1-2a) is matched with the assembly notch (1c) so that: when the rotating shaft (4) rotates to a disengaging angle, the limiting boss (4-1-2a) can move along the axial direction of the rotating shaft (4) and can pass through the assembling notch (1 c); when the rotating shaft (4) rotates away from the pull-out angle, the first handrail support (1) blocks the limiting boss (4-1-2a) from moving along the axial direction of the rotating shaft (4).
2. The handrail run-off prevention mounting structure of claim 1, wherein: the limiting part (4-1-2) of the rotating shaft (4) is of a flat head structure, the flat head structure is provided with two mutually parallel tangent planes, and the distance between the two tangent planes is smaller than the diameter of the rotating shaft part (4-1-1).
3. The handrail run-off prevention mounting structure of claim 1, wherein: the first handrail support (1) is provided with two assembling gaps (1c), and the two assembling gaps (1c) are symmetrically arranged; the limiting part (4-1-2) of the rotating shaft (4) is provided with two limiting bosses (4-1-2a) matched with the two assembling notches (1 c).
4. The handrail run-off prevention mounting structure of any one of claims 1 to 3, wherein: the rotating shaft part (4-1-1) is rotatably arranged in the first shaft hole (1a), a bushing (9) is arranged between the rotating shaft part (4-1-1) and the first shaft hole (1a), and the bushing (9) is provided with a notch (9a) for the limiting part (4-1-2) to pass through.
5. The handrail run-off prevention mounting structure of claim 4, wherein: the handrail anti-falling mounting structure is further provided with a cover plate (10) and a limiting pin (11), the cover plate (10) is fixedly connected to the inner side of the first handrail support (1), the cover plate (10) is provided with a cover plate arc-shaped limiting groove (10a) and a cover plate through hole (10b) for the first end portion (4-1) to pass through, and the first handrail support (1) is provided with a support arc-shaped limiting groove (1 b); the limiting pin (11) is fixed with the handrail (3), and the limiting pin (11) penetrates through the cover plate arc-shaped limiting groove (10a) and the support arc-shaped limiting groove (1 b).
6. The handrail run-off prevention mounting structure of claim 5, wherein: bush (9) and apron (10) integrated into one piece, apron (10) pass through buckle connected mode fixed connection in the inboard of first handrail support (1), the apron via hole (10b) of apron (10) with breach (9a) of bush (9) are linked together.
7. The handrail run-off prevention mounting structure of any one of claims 1 to 3, wherein: a threaded hole (4-2a) is formed in the end face of the second end portion (4-2) of the rotating shaft (4), the limiting piece (5) is a bolt, and the bolt is composed of a screw rod portion (5-1), a shaft rod portion (5-2) and a head portion (5-3) which are sequentially connected; the screw rod part (5-1) is fixedly connected with the threaded hole (4-2a) in a threaded manner, the shaft rod part (5-2) is rotatably arranged in the second shaft hole (2a), and the head part (5-3) is positioned on the outer side of the second handrail support (2) and plays a limiting role.
8. The handrail run-off prevention mounting structure of any one of claims 1 to 3, wherein: a rivet hole is formed in the end face of the second end portion (4-2) of the rotating shaft (4), and the limiting piece (5) is a rivet; the rivet rod of the rivet is riveted with the rivet hole, and the head of the rivet is positioned on the outer side of the second handrail support (2) to play a limiting role.
9. The handrail run-off prevention mounting structure of any one of claims 1 to 3, wherein: when the armrest (3) is in a retracted state, the rotating shaft (4) rotates to the pull-out angle, and when the armrest (3) is in an opened state, the rotating shaft (4) leaves the pull-out angle.
10. The handrail run-off prevention mounting structure of any one of claims 1 to 3, wherein: the first end part (4-1) and the second end part (4-2) are two ends of one rotating shaft (4), or the rotating shaft (4) comprises two split rotating shafts which are coaxially arranged, and the first end part (4-1) and the second end part (4-2) are the end parts of the two split rotating shafts respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921293095.5U CN211032274U (en) | 2019-08-09 | 2019-08-09 | Handrail anticreep mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921293095.5U CN211032274U (en) | 2019-08-09 | 2019-08-09 | Handrail anticreep mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211032274U true CN211032274U (en) | 2020-07-17 |
Family
ID=71530642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921293095.5U Active CN211032274U (en) | 2019-08-09 | 2019-08-09 | Handrail anticreep mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211032274U (en) |
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2019
- 2019-08-09 CN CN201921293095.5U patent/CN211032274U/en active Active
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