CN214886368U

CN214886368U - Limiting and buffering structure of vehicle door hinge

Info

Publication number: CN214886368U
Application number: CN202121447167.4U
Authority: CN
Inventors: 郑小平
Original assignee: Zhejiang Tianyuan Electromechanical Co ltd
Current assignee: Zhejiang Tianyuan Electromechanical Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-11-26
Anticipated expiration: 2031-06-28

Abstract

The utility model provides a spacing buffer structure of door hinge belongs to auto-parts technical field. It has solved the not good problem of buffering effect. It sets up the gag lever post on the stopper and has elastic bolster including sliding, gag lever post one end stretches out the stopper and outer and have the head, the bolster cover is located on the gag lever post between head and the stopper, support when hinge seat two rotates around the pin joint and lean on and compress the bolster by the portion can and the head counterbalance of gag lever post, the bolster is the tube-shape, the bolster has the deformation portion that is continuous ripple form along its axis direction, the groove of stepping down has on the stopper, the one end embedding of bolster is stepped down the inslot, the size in groove of stepping down is greater than the head, the other end of bolster offsets with the head of gag lever post and leans on. It has the advantages of good buffering effect, reliable structure and the like.

Description

Limiting and buffering structure of vehicle door hinge

Technical Field

The utility model belongs to the technical field of auto-parts, relate to the door hinge, especially, relate to the spacing buffer structure of door hinge.

Background

The door hinge is an important part for realizing the connection of the door and the door pillar, and can realize the opening or closing of the door relative to the vehicle body. The traditional vehicle door hinge is simple in structure and does not have the functions of controlling the opening of the vehicle door and limiting, and the phenomena of damage, abnormal sound and the like caused by excessive opening of the vehicle door due to improper force control are easy to occur. Therefore, the chinese patent discloses a door hinge assembly with a limiter of patent application No. 201620457536.0, which comprises a base, a rotating arm connected with the base through a pin and a limiter installed on the base and located between the base and the rotating arm, the rotating arm is provided with a rotating arm limiting part arranged towards the limiter, wherein the limiter comprises a mounting seat convexly arranged on the base and provided with a through hole, the mounting seat is located between the rotating arm limiting part and the base, an installation rod is inserted in the through hole, two ends of the installation rod extend out of the through hole, a limiting plate is installed between the mounting seat and the rotating arm, the limiting plate is fixedly connected with the front end of the installation rod, and a buffer block is installed between the limiting plate and the mounting seat. When the door is opened, the rotating arm limiting part swings along with the shaft pin and moves towards the limiter, the rotating arm limiting part abuts against the limiting plate and pushes the mounting rod to move backwards along with the opening of the door to the limit position, and the buffer block can be compressed to play a role in buffering, so that the impact of the shaft pin and the rotating arm is relieved, and the phenomena of abnormal sound and the like caused by rigid impact are avoided.

However, the door hinge assembly with the limiter also has certain disadvantages: the limit in space is limited, and the buffer block can only be set up to be simple annular block structure, and its thickness is less and lead to the buffering stroke very short, finds in the practical application in-process and can not satisfy the use well, especially appears very easily when the door dynamics of opening when too big that the buffer block is compressed to the limit still has great impact force, therefore buffering effect is not good.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem that prior art exists, provide the spacing buffer structure of door hinge, solved the not good problem of buffering effect.

The purpose of the utility model can be realized by the following technical proposal:

the utility model discloses a spacing buffer structure of door hinge, door hinge include each other articulated hinge seat one and hinge seat two, hinge seat one has the stopper, hinge seat two has the portion of supporting, this spacing buffer structure sets up the gag lever post on the stopper and has elastic bolster including sliding, gag lever post one end stretches out the stopper outer and have the head, the bolster cover is located on the gag lever post between head and the stopper, support when hinge seat two around the pin joint rotate support the portion can lean on and compress the bolster with the head counterbalance of gag lever post, a serial communication port, the bolster be the tube-shape, the bolster has the deformation portion that is continuous corrugate along its axis direction, has the groove of stepping down on the stopper, the inslot is stepped down in to the one end embedding of bolster, the size in groove of stepping down is greater than the head, the other end of bolster offsets with the head of gag lever post and leans on.

In the limiting buffer structure, the buffer part is arranged in a cylindrical shape, and the limiting block is provided with the abdication groove in a matching way, the cylindrical structure means that compared with the prior art, the length of the buffer part is prolonged, and the abdication groove enables the buffer part with the increased length to be used in the limiting buffer structure, so that the buffer stroke is prolonged; meanwhile, the buffer part is provided with a deformation part which is continuously corrugated along the axial direction of the buffer part, so that the elasticity of the buffer part is enhanced. Through the enhancement in above-mentioned two aspects to ensure that the bolster can not compressed to the end in the twinkling of an eye when the dynamics of opening the door is too big, improved buffering effect.

In the limit buffer structure of the door hinge, the two ends of the buffer part are both circular ring pieces, the two ends of the deformation part are fixedly connected with the two circular ring pieces respectively, and the inner diameter of each circular ring piece is matched with the outer diameter of the limit rod.

The setting of two ring pieces can increase the certain intensity of bolster, all forms the plane contact between the head of gag lever post and the stopper, has played the supporting role to the bolster, produces the deformation that is difficult to reset when avoiding the bolster compression to the limit.

In foretell spacing buffer structure of door hinge, the stopper in be equipped with the mating holes, the one end drill way of mating holes is linked together with the groove of stepping down, the other end drill way department of mating holes is equipped with the annular and keeps off the shoulder, the gag lever post includes that pole portion one and external diameter are less than pole portion one two, pole portion one slides and sets up in the mating holes and pole portion two stretches out outside the stopper from the centre bore that the annular kept off the shoulder.

In the limit buffer structure of the vehicle door hinge, the two outer sleeves of the rod part in the matching hole are provided with the buffer springs, and the elastic force of the buffer springs acts on the first rod part.

On the basis of the buffer piece, the buffer spring is additionally arranged, when the buffer piece is compressed to the limit, secondary buffering can be achieved by means of compression of the buffer spring, and the buffering effect is further improved.

In the limit buffer structure of the vehicle door hinge, an annular positioning seat is arranged at an orifice at one end of the central hole of the annular blocking shoulder, one end of the buffer spring is arranged in the annular positioning seat, and the other end of the buffer spring abuts against the first rod part.

The annular positioning seat is arranged at the orifice at one end of the central hole of the annular blocking shoulder, and one end of the buffer spring is arranged in the annular positioning seat, so that the compression stroke of the buffer spring is increased, and the buffering effect is better.

In the limit buffer structure of the door hinge, the top surface of the head of the limit rod is provided with a concave cavity, an embedded block made of nylon material is fixed in the concave cavity, and the embedded block extends out of the top surface of the head of the limit rod.

The embedded block made of nylon materials is arranged at the head of the limiting rod, so that the abutting part of the second hinge seat is abutted against the embedded block instead of being directly abutted against the head of the limiting rod, and noise caused by rigid collision can be avoided.

Compared with the prior art, this spacing buffer structure of car door hinge sets up the bolster into being cylindric and having along its axis direction and being continuous corrugate deformation portion, combines to set up the groove of stepping down on the stopper again, has increased the length of bolster like this on the one hand, has prolonged the buffering stroke, and on the other hand has strengthened the elasticity of bolster again to ensure that the bolster can not compressed to the end in the twinkling of an eye when the dynamics of opening the door is too big, improved buffering effect.

Drawings

Fig. 1 is a schematic sectional view of a limit buffer structure of the present door hinge.

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is an enlarged view of the buffer member of fig. 1.

In the figure, 1, a hinge seat I; 1a, a limiting block; 1a1, mating holes; 1a2, a relief groove; 1a3, annular shoulder; 1a4, annular positioning seat; 2. a second hinge seat; 2a, an abutting part; 3. a limiting rod; 3a, a head; 3b, a rod part I; 3c, a rod part II; 4. a buffer member; 4a, a deformation portion; 4b, a circular ring sheet; 5. an insert block; 6. a card; 7. a buffer spring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in figure 1, the limiting and buffering structure of the vehicle door hinge comprises a hinge seat I1 and a hinge seat II 2 which are hinged with each other, particularly, when the limiting and buffering structure is used, the hinge seat I1 is fixed on a vehicle body upright post through a fastening piece, the hinge seat II 2 is fixed on a vehicle door through the fastening piece, and when the vehicle door is opened, the hinge seat II 2 swings around a hinged point of the hinge seat I1 and the hinge seat II 2.

As shown in fig. 1 and fig. 2, the first hinge seat 1 has a limiting block 1a, the second hinge seat 2 has a leaning part 2a, the limiting buffer structure includes a limiting rod 3 slidably disposed on the limiting block 1a and a buffer member 4 with elasticity, one end of the limiting rod 3 extends out of the limiting block 1a and has a head 3a, the buffer member 4 is disposed on the limiting rod 3 between the head 3a and the limiting block 1a, and the leaning part 2a can lean against and compress the buffer member 4 with the head 3a of the limiting rod 3 when the second hinge seat 2 rotates around the hinge point. The top surface of the head 3a of the limiting rod 3 is provided with a concave cavity, an embedded block 5 made of nylon material is fixed in the concave cavity, and the embedded block 5 extends out of the top surface of the head 3a of the limiting rod 3. The head 3a of the limiting rod 3 is provided with the insert 5 made of nylon materials, so that the abutting part 2a of the second hinge seat 2 abuts against the insert 5 instead of directly abutting against the head 3a of the limiting rod 3, and noise caused by rigid collision can be avoided. Outside the other end of gag lever post 3 stretched out stopper 1a, this end external fixation of gag lever post 3 has card 6, and card 6 can support with stopper 1a when gag lever post 3 is kept away from stopper 1a direction removal towards making head 3a and lean on to make gag lever post 3 can not drop from stopper 1 a. Specifically, a matching hole 1a1 is arranged in the limiting block 1a, an annular blocking shoulder 1a3 is arranged at an orifice at one end of the matching hole 1a1, the limiting rod 3 comprises a first rod part 3b and a second rod part 3c, the outer diameter of the second rod part is smaller than that of the first rod part 3b, the first rod part 3b is arranged in the matching hole 1a1 in a sliding mode, the second rod part 3c extends out of the limiting block 1a from a center hole of the annular blocking shoulder 1a3, the clamping piece 6 is fixed on the second rod part 3c, and the buffering piece 4 is sleeved outside the first rod part 3 b.

Further, as shown in fig. 1, 2, and 3, the cushion member 4 is cylindrical, the cushion member 4 has a deformation portion 4a which is continuously corrugated in the axial direction thereof, the stopper 1a has a relief groove 1a2, the relief groove 1a2 is larger than the head portion 3a, one end of the cushion member 4 abuts against the head portion 3a of the stopper rod 3, the other end of the cushion member 4 is fitted into the relief groove 1a2, and the relief groove 1a2 communicates with the orifice of the other end of the fitting hole 1a 1. In this embodiment, both ends of the buffer member 4 are circular ring pieces 4b, both ends of the deformation portion 4a are fixedly connected with the two circular ring pieces 4b, respectively, and the inner diameter of the two circular ring pieces 4b is matched with the outer diameter of the rod portion one 3 b.

When the vehicle door is opened, the abutting part 2a of the second hinge seat 2 continuously moves towards the limiting block 1 a. When the abutting part 2a abuts against the head part 3a of the limiting rod 3, the second hinge seat 2 can push the limiting rod 3 to move towards the direction close to the limiting block 1a, so that the buffering piece 4 can be compressed to play a buffering role, and thus, the rigid impact is avoided, and the phenomena of abnormal sound, deformation caused by connection of a vehicle door and a vehicle body and the like are prevented. Simultaneously, bolster 4 among this spacing buffer structure is cylindricly and has the deformation portion 4a that is continuous corrugate along its axis direction, has increased the length of bolster 4 on the one hand like this, has prolonged the buffering stroke, and on the other hand has strengthened the elasticity of bolster 4 again to guarantee that bolster 4 can not compressed to the end in the twinkling of an eye when the dynamics of opening the door is too big, improved buffering effect.

Further, as shown in fig. 1 and 2, the buffer spring 7 is externally fitted around the rod portion two 3c located in the fitting hole 1a1, and the elastic force of the buffer spring 7 acts on the rod portion one 3 b. An annular positioning seat 1a4 is arranged at an orifice at one end of a central hole of the annular retaining shoulder 1a3, one end of the buffer spring 7 is embedded in the annular positioning seat 1a4, and the other end of the buffer spring 7 abuts against the rod part one 3 b. The buffer spring 7 is added on the basis of the buffer 4, when the buffer 4 is compressed to the limit, secondary buffering can be achieved by means of compression of the buffer spring 7, and the buffering effect is further improved.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The limiting and buffering structure of the vehicle door hinge comprises a first hinge seat (1) and a second hinge seat (2) which are hinged with each other, wherein the first hinge seat (1) is provided with a limiting block (1a), the second hinge seat (2) is provided with a butting part (2a), the limiting and buffering structure comprises a limiting rod (3) arranged on the limiting block (1a) in a sliding mode and a buffering piece (4) with elasticity, one end of the limiting rod (3) extends out of the limiting block (1a) and is provided with a head part (3a), the buffering piece (4) is sleeved on the limiting rod (3) between the head part (3a) and the limiting block (1a), the butting part (2a) can butt against the head part (3a) of the buffering piece (3) and compress the buffering piece (4) when the second hinge seat (2) rotates around a hinge point, and is characterized in that the buffering piece (4) is in a cylindrical shape, and the buffering piece (4) is provided with a deformation part (4a) which is in a continuous corrugated shape along the axis direction, the limiting block (1a) is provided with a yielding groove (1a2), one end of the buffer piece (4) is embedded into the yielding groove (1a2), the size of the yielding groove (1a2) is larger than that of the head (3a), and the other end of the buffer piece (4) abuts against the head (3a) of the limiting rod (3).

2. The limit buffer structure of the vehicle door hinge according to claim 1, wherein both ends of the buffer member (4) are circular ring pieces (4b), both ends of the deformation portion (4a) are fixedly connected with the two circular ring pieces (4b), and the inner diameter of the circular ring pieces (4b) is matched with the outer diameter of the limit rod (3).

3. The limiting and buffering structure of the vehicle door hinge according to claim 1 or 2, wherein a matching hole (1a1) is formed in the limiting block (1a), an orifice at one end of the matching hole (1a1) is communicated with the abdicating groove (1a2), an annular retaining shoulder (1a3) is arranged at an orifice at the other end of the matching hole (1a1), the limiting rod (3) comprises a first rod part (3b) and a second rod part (3c) with an outer diameter smaller than that of the first rod part (3b), the first rod part (3b) is slidably arranged in the matching hole (1a1), and the second rod part (3c) extends out of the limiting block (1a) from a center hole of the annular retaining shoulder (1a 3).

4. The door hinge limit cushion structure according to claim 3, wherein a cushion spring (7) is externally fitted to the second lever portion (3c) located in the fitting hole (1a1), and the elastic force of the cushion spring (7) acts on the first lever portion (3 b).

5. The vehicle door hinge limiting and buffering structure according to claim 4, wherein an annular positioning seat (1a4) is arranged at an opening of one end of a central hole of the annular blocking shoulder (1a3), one end of the buffering spring (7) is arranged in the annular positioning seat (1a4), and the other end of the buffering spring (7) abuts against the rod portion I (3 b).

6. The limit buffer structure of the vehicle door hinge according to claim 1, characterized in that a concave cavity is arranged on the top surface of the head part (3a) of the limit rod (3), an insert (5) made of nylon material is fixed in the concave cavity, and the insert (5) extends out of the top surface of the head part (3a) of the limit rod (3).