CN212473189U

CN212473189U - Threaded pin for hinged connection and hinged structure

Info

Publication number: CN212473189U
Application number: CN202021042274.4U
Authority: CN
Inventors: 李道鹏; 查建双; 任位; 唐典均; 谈小江
Original assignee: Chongqing Boao Mg Al Manufacuture Co ltd
Current assignee: Chongqing Boao Mg Al Manufacuture Co ltd
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2021-02-05
Anticipated expiration: 2030-06-09

Abstract

The utility model discloses a screw pin for articulated connection, including nail cap and threaded rod, be connected with smooth rod between nail cap and the threaded rod, this smooth rod with the threaded rod sets up with the central line, nail cap, smooth rod and threaded rod integrated into one piece. A hinge structure with the threaded pin is also disclosed. The utility model has the advantages that: the screw rod section of the screw pin is connected with the first workpiece in a fastening mode after being tapped into the first workpiece, the light ring rod section serves as a rotating pin shaft of the other workpiece, the first workpiece and the screw cap limit the latter workpiece, and the hinge assembly is very simple and convenient.

Description

Threaded pin for hinged connection and hinged structure

Technical Field

The utility model belongs to car seat structure field, concretely relates to a screw thread pin and hinge structure for articulated connection.

Background

The center armrest in the rear row of the automobile is a common seat mechanism, and can improve the riding comfort of passengers in the rear row. The armrests are generally of a turnover structure and are used as a part of the backrest of the central seat in the back row when folded; when the handrail is turned forwards and opened to the horizontal position, the handrail is formed. A cup holder assembly is often integrated with the armrest for holding a cup or the like. The cup holder component can be fixedly arranged on the armrest, and the cup holder can be directly used when the armrest is opened; it may also be a sliding hidden design that slides out only when in use. The former design has a simple structure but a slightly poor aesthetic property, and the latter design has an improved aesthetic property but a complicated structure. With the trend of light weight reduction of automobiles, light weight of automobile seat frames is an important part of light weight reduction of the whole automobiles, and approaches thereof include use of light materials, reduction of use of connecting members, and the like. For the handrail cup stand framework, in order to ensure the strength of the handrail cup stand framework and simultaneously reduce the use of connecting pieces and welding procedures, the structure of the handrail cup stand framework is changed compared with the traditional handrail cup stand framework produced by using iron or steel materials. Therefore, a novel handrail cup holder framework is designed, and the connection mode between the handrail framework and the cup holder framework is improved.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is an object of the present invention to provide a threaded pin for articulated connections.

The technical scheme is as follows:

the utility model provides a screw pin for articulated connection, includes nail cap and threaded rod, its key lies in, be connected with smooth rod between nail cap and the threaded rod, this smooth rod with the threaded rod sets up with the central line, nail cap, smooth rod and threaded rod integrated into one piece.

By adopting the design, the rotary hinge has the advantages that the threaded rod section of the threaded pin is tightly connected with the first workpiece after tapping into the first workpiece, the halo rod section is used as a rotary hinge pin of the other workpiece, the first workpiece and the screw cap limit the latter workpiece, and the hinge assembly is very simple and convenient.

As a preferred technical scheme, the cross section of the threaded rod is in a shape of a rounded triangle, the cross section of the threaded rod is defined by three arc-shaped edges, and the threads of the threaded rod are triangular threads.

By adopting the design, the triangular screw has the advantages that the triangular screw has tapping and cutting functions and extrusion deformation functions in the process of tapping a workpiece, and the fastening connection is convenient to realize.

A second object of the present invention is to provide a hinge structure.

The hinge structure comprises the threaded pin and is characterized by further comprising a first member and a second member, wherein a rotating hole is formed in the second member in a penetrating mode, and the threaded pin is simultaneously arranged in the first member and the second member in a penetrating mode;

the smooth rod is movably arranged in the rotating hole in a penetrating mode, and the threaded rod is arranged in the first component in a penetrating mode and is in threaded fastening connection with the first component.

By adopting the design, the first member and the second member are simple, convenient and reliable to assemble.

As the preferred technical scheme, the smooth rod is sleeved with the noise reduction sleeve, and the noise reduction sleeve is clamped between the outer wall of the smooth rod and the inner wall of the rotating hole.

By adopting the design, the rotary noise is reduced.

Preferably, the first member is made of a first metal, and the threaded pin is made of a second metal having a hardness greater than that of the first metal.

By adopting the design, the screw-thread pin has the advantages that the screw-thread pin has obvious extrusion deformation effect in the process of tapping into the first component, the connection strength between the screw-thread pin and the first component is improved, and the screw-thread pin is not easy to loosen.

According to a preferable technical scheme, the first component is provided with a pin shaft hole, the inner diameter of the pin shaft hole is smaller than the outer diameter of the threaded rod, and the threaded rod taps into the pin shaft hole and extrudes the inner wall of the pin shaft hole so as to realize fastening connection.

With the above design, the pin can conveniently tap into the first component according to a preset route.

As a preferred technical scheme, the first component is a hinged block on a handrail framework, the second component is a rotating block on a cup holder framework, and the rotating block and the hinged block are arranged side by side;

the hinge block is provided with a pin shaft hole in a penetrating manner, the inner wall of the pin shaft hole extends towards the rotating block to form a protruding ring, and the wall thickness of the pin shaft hole at the protruding ring is smaller than that of the pin shaft hole in the hinge block.

By adopting the design, the area of the end surface of the extending ring is smaller than that of the hinged block, so that the contact area with the rotating block is small, and the rotating resistance is favorably reduced.

Compared with the prior art, the beneficial effects of the utility model are that: the screw rod section of the screw pin is connected with the first workpiece in a fastening mode after being tapped into the first workpiece, the light ring rod section serves as a rotating pin shaft of the other workpiece, the first workpiece and the screw cap limit the latter workpiece, and the hinge assembly is very simple and convenient.

Drawings

FIG. 1 is a schematic view of a threaded pin;

FIG. 2 is a bottom view of FIG. 1;

FIG. 3 is a schematic view of a hinge structure;

FIG. 4 is a schematic view of the connection between the armrest frame and the cup holder frame;

FIG. 5 is a schematic structural view of the hinge bracket;

FIG. 6 is a schematic structural view of a cup holder framework;

fig. 7 is an enlarged view of a portion m1 in fig. 6.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

As shown in fig. 1, a threaded pin for hinged connection comprises a pin cap 301 and a rod part, wherein the rod part comprises a smooth rod 302 and a threaded rod 303, the smooth rod 302 is connected between the pin cap 301 and the threaded rod 303, the smooth rod 302 and the threaded rod 303 are arranged in the same center line, and the pin cap 301, the smooth rod 302 and the threaded rod 303 are integrally formed.

As shown in fig. 2, the cross section of the threaded rod 303 is a rounded triangle, the cross section of the threaded rod is defined by three arc-shaped edges, and the threads of the threaded rod 303 are triangular threads.

The above-described threaded pin is suitable for the following hinge structure.

As shown in fig. 3, a hinge structure includes a threaded pin 300, a first member and a second member having a rotation hole 212 formed therethrough, the threaded pin being simultaneously inserted into the first member and the second member. The smooth rod 302 is movably arranged in the rotating hole 212 in a penetrating manner, the threaded rod 303 is arranged in the first member in a penetrating manner and is in threaded fastening connection with the first member, and the first member and the nail cap 301 limit the first member. The optical sliding rod 302 is externally sleeved with a noise reduction sleeve 400 made of a high polymer material, and the noise reduction sleeve 400 is clamped between the outer wall of the optical sliding rod 302 and the inner wall of the rotating hole 212.

The hinge structure is used for a split turnover type armrest cup holder framework on the automobile seat.

As shown in fig. 4, a convertible light-duty handrail saucer skeleton of components of a whole that can function independently, including handrail skeleton 100 and saucer skeleton 200, the two all is rectangular plate-shaped, and the both ends of the two are link and free end respectively, saucer skeleton 200 is located one side of handrail skeleton 100, saucer skeleton 200 free end with handrail skeleton 100's free end orientation is the same, saucer skeleton 200's link with handrail skeleton 100 is articulated, in order to allow saucer skeleton 200 pastes and folds up handrail skeleton 100's corresponding surface, or relative handrail skeleton 100 expandes.

The armrest frame 100 comprises a plate-shaped armrest frame body, two hinged supports 110 are fixedly arranged on one surface of the armrest frame body facing the cup holder frame 200, and the two hinged supports 110 are close to the free end of the armrest frame body. The two hinged supports 110 are respectively close to two sides of the armrest frame body, and the two hinged supports 110 are opposite in parallel.

As shown in fig. 5, the hinge bracket 110 includes a bar-shaped support plate 111, one end of the support plate 111 is fixedly connected to the armrest frame body, the other end of the support plate 111 extends away from the armrest frame body and is biased toward the connecting end of the armrest frame body, and a hinge block 112 is fixedly disposed at the extending end of the support plate 111. The hinged block 112 is cylindrical, a pin shaft hole 114 penetrates through the center of the hinged block 112, and the center line of the pin shaft hole 114 is parallel to the armrest frame body.

A reinforcing rib 117 is connected between the hinge block 112 and the armrest frame body, the reinforcing rib 117 is disposed along and connected to the support plate 111, and the reinforcing rib 117 is perpendicular to the armrest frame body. The reinforcing rib 117 is located on a side of the support plate 111 facing away from the rotation restricting region 120, and the reinforcing rib 117 smoothly extends from the hinge block 112 to the armrest frame body and gradually widens. This is because, when the cup frame 200 is mounted, particularly when the cup frame 200 is unfolded and loaded, as shown in fig. 4, the free end of the armrest frame 100 faces upward, the cup frame 200 is in a horizontal position, and a tensile force is applied to the upper side of the connection between the hinge bracket 110 and the armrest frame body, so that the reinforcing rib 117 is provided above the support plate 111, and the reinforcing rib 117 is perpendicular to the armrest frame body to receive a shearing force, thereby improving the strength of the hinge bracket 110.

Further, the number of the reinforcing ribs 117 is three, and all the reinforcing ribs 117 are arranged along the hole center line of the pin shaft hole 114, wherein the reinforcing rib 117 located in the middle is connected to the middle of the hinge block 112, and the remaining two reinforcing ribs 117 are connected to both ends of the hinge block 112. The distance between two adjacent reinforcing ribs 117 is gradually increased from the hinge block 112 to the armrest frame body, so as to further improve the connection strength between the support plate 111 and the armrest frame body.

In addition, the hinge block 112 is provided with a protruding ring 113 at the outer end corresponding to the pin shaft hole 114, the inner hole of the protruding ring 113 is communicated with the pin shaft hole 114, and the thickness of the protruding ring 113 is smaller than the wall thickness of the pin shaft hole 114 at the inner part of the hinge block 112.

As shown in fig. 6, the cup holder frame 200 includes a rectangular cup holder frame body, the connecting end of the cup holder frame body is fixedly provided with an overturning limiting plate 220, the overturning limiting plate 220 is arranged along the connecting end of the cup holder frame body, the overturning limiting plate 220 is lower than the cup holder frame body towards one side of the armrest frame 100, and two ends of the overturning limiting plate 220 are respectively and fixedly provided with a hinge base 210.

The hinge bases 210 correspond to the hinge brackets 110 one by one, and a pair of hinge bases 210 and the hinge brackets 110 are internally provided with a same hinge shaft in a penetrating manner. After the cup holder frame 200 and the armrest frame 100 are assembled, the two hinge bases 210 are respectively located outside the two hinge brackets 110.

As shown in fig. 7, the hinge base 210 includes a rotation block 211, the rotation block 211 is fixedly disposed at a corresponding end of the turnover limiting plate 220, and the rotation hole 212 is formed through the rotation block 211. Two of the rotation holes 212 are arranged concentrically with the hole center line. A stiffening plate 214 is connected between the rotating block 211 and the turnover limiting plate 220, and the stiffening plate 214 extends to and is connected with the cup holder body. At least two stiffening plates 214 are arranged, all the stiffening plates 214 are arranged in parallel and are perpendicular to the hole center lines of the turnover limiting plates 220 and the rotating holes 212, and thinning grooves 213 are formed in the outer walls of the rotating blocks 211 outside the stiffening plates 214.

The hinge blocks 112 correspond to the rotation blocks 211 one by one, and the threaded pins 300 are inserted therein. The hinge block 112, the rotation block 211 and the threaded pin 300 form the hinge structure, wherein the hinge block 112 is the first member, and the rotation block 211 is the second member. The hinge block 112 and the nail cap 301 limit the rotating block 211.

The end, facing the rotating block 211, of the hinge block 112 is provided with the extending ring 113, and the wall thickness of the extending ring 113 is small, so that the hinge block 112 and the rotating block 211 are separated, the contact area is reduced, and the rotating resistance of the rotating block 211 is reduced.

The armrest framework 100 and the cup holder framework 200 are respectively integrally formed by adopting a die, the pin shaft hole 114 with the inner diameter smaller than the outer diameter of the threaded rod 303 is processed on the hinge block 112 of the armrest framework 100, and then the armrest framework and the cup holder framework are assembled through the threaded pin 300. The handrail framework 100 is made of light metal such as magnesium alloy and aluminum alloy, the hardness of the handrail framework is smaller than that of the steel threaded pin 300, the plastic deformation capacity is relatively strong, during assembly, the threaded rod 303 of the threaded pin 300 is threaded into the hinge block 112 from the pin shaft hole 114 and extrudes the inner wall of the hinge block, and compared with a circular thread, the triangular thread has both cutting function and extrusion deformation function, so that the threaded rod 303 and the hinge block 112 are fastened and connected, the phenomenon that the cup holder is loosened due to overturning in the using process is prevented, and the assembly is very simple and convenient.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims

1. A threaded pin for articulated connections, comprising a nut (301) and a threaded shank (303), characterized in that: a smooth rod (302) is connected between the nail cap (301) and the threaded rod (303), the smooth rod (302) and the threaded rod (303) are arranged on the same center line, and the nail cap (301), the smooth rod (302) and the threaded rod (303) are integrally formed.

2. A threaded pin for articulated connections according to claim 1, characterized in that: the cross section of the threaded rod (303) is in a shape of a rounded triangle, the cross section of the threaded rod is formed by three arc-shaped edges in a surrounding mode, and the threads of the threaded rod (303) are triangular threads.

3. A hinge structure comprising a threaded pin according to claim 1 or 2, characterized in that: the screw thread pin is characterized by further comprising a first component and a second component, wherein a rotating hole (212) penetrates through the second component, and the screw thread pin is simultaneously arranged in the first component and the second component in a penetrating mode;

the smooth rod (302) is movably arranged in the rotating hole (212) in a penetrating mode, and the threaded rod (303) is arranged in the first component in a penetrating mode and is in threaded fastening connection with the first component.

4. The hinge structure according to claim 3, wherein: the smooth rod (302) is sleeved with a noise reduction sleeve (400), and the noise reduction sleeve (400) is clamped between the outer wall of the smooth rod (302) and the inner wall of the rotating hole (212).

5. The hinge structure according to claim 4, wherein: the first member is made of a first metal and the threaded pin is made of a second metal having a hardness greater than the first metal.

6. The hinge structure according to claim 5, wherein: the first component is provided with a pin shaft hole (114), the inner diameter of the pin shaft hole (114) is smaller than the outer diameter of the threaded rod (303), and the threaded rod (303) is tapped into the pin shaft hole (114) and extrudes the inner wall of the pin shaft hole (114) so as to realize fastening connection.

7. The hinge structure according to claim 6, wherein: the first component is a hinge block (112) on the armrest framework, the second component is a rotating block (211) on the cup holder framework, and the rotating block (211) and the hinge block (112) are arranged side by side;

the hinge block (112) is provided with a pin shaft hole (114) in a penetrating manner, the inner wall of the pin shaft hole (114) extends towards the rotating block (211) to form a protruding ring (113), and the wall thickness of the pin shaft hole (114) at the position of the protruding ring (113) is smaller than that of the pin shaft hole (114) in the hinge block (112).