CN222340887U - Damping hinge assembly and chair tea table having the same - Google Patents

Abstract

The utility model discloses a damping hinge assembly and a seat tea table with the damping hinge assembly, belonging to the technical field of rail transit vehicle seats; the damping hinge assembly disclosed in the utility model comprises a first rod and a second rod, the second rod being rotatably mounted on the end of the first rod through a damping shaft, the damping shaft being sleeved with a damping spring which can perform rotational motion around its axis, and the damping spring and the damping shaft being interference fit; wherein, the end of the first rod is provided with a damping hole which receives the damping shaft and can be coupled with the damping spring and fix the position of the damping spring, the damping spring of the damping hinge assembly being interference fit with the damping shaft, and the damping force is provided by the friction force between the inner wall of the damping spring and the outer wall of the damping shaft, so as to achieve constant damping force, so that the seat tea table equipped with the damping hinge assembly effectively solves the problem of collision sound caused by the instantaneous unfolding of the table top.

Description

Damping hinge assembly and seat tea table with same

Technical Field

The utility model relates to the technical field of rail transit vehicle seats, in particular to a damping hinge assembly and a seat tea table with the damping hinge assembly.

Background

At present, a tea table is generally arranged at the back of a seat on a rail transit vehicle for passengers in the back row to use, one side of the tea table is rotationally connected with a seat framework, when the seat is used, the tea table is horizontally unfolded for dining and drinking, and after the seat is used, the seat is folded at the rear side of the seat framework, so that the space is saved, and passengers can conveniently go in and go out of the seat;

The traditional tea table is rotationally connected with the seat framework through the connecting shaft, the connecting shaft has no damping effect, after the knob of the tea table is opened, the tea table can be instantly unfolded to give out the sound of the rapid collision of the tea table and the limiting supporting block, the noise is high, especially in the quiet environment in the carriage, the noise is obvious, the sitting experience feeling is poor for the resting passengers, and the user can be provided with the poor product quality feeling due to the noise;

Accordingly, there is a need to develop a damped hinge assembly and a seat tea table having the same.

Disclosure of utility model

The utility model aims to provide a damping hinge assembly and a seat tea table with the damping hinge assembly, which can solve the problem that when a tea table is opened in the prior art, a table board is unfolded instantly to generate collision sound and noise is generated.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model discloses a damping hinge assembly, comprising:

A first rod member;

The second rod piece can be rotatably arranged at the end part of the first rod piece through a damping shaft, a damping spring capable of rotating around the axis of the damping shaft is sleeved on the damping shaft, and the damping spring is in interference fit with the damping shaft;

The damping shaft is arranged at the end part of the first rod piece, and the damping shaft is connected with the damping spring in a coupling mode.

Further, the damping spring includes a boss portion and a tab portion;

The expansion joint has been seted up to the shaft sleeve portion, the expansion joint is followed shaft sleeve portion one end extends to the other end, fin portion one end with shaft sleeve portion the expansion joint edge position is connected, the other end orientation deviates from shaft sleeve portion axis direction extends.

Further, a clamping groove is formed in the side wall of the damping hole, and the wing part is received through the clamping groove so as to prevent the damping spring from rotating in the first rod piece.

Further, one end of the damping shaft is provided with a circular shaft section sleeved with the damping spring, the circular shaft section is provided with a concave oil storage groove for storing lubricating oil, and the oil storage groove extends from one end of the circular shaft section to the other end of the circular shaft section.

Further, the second rod piece further comprises a shaft fixing seat, and the damping shaft can be detachably and fixedly connected with the shaft fixing seat.

Furthermore, the end face of the shaft fixing seat is provided with a jack, and one end of the damping shaft is provided with a plug-in shaft section which is connected with the jack in a plug-in manner.

Further, a fourth mounting hole is formed in the first rod piece, a second mounting hole is formed in the shaft fixing seat of the second rod piece, and a connecting piece is mounted in the second mounting hole and the fourth mounting hole.

The utility model discloses a seat tea table, which comprises a table plate arranged on a seat framework and a damping hinge assembly as claimed in any one of claims, wherein the seat framework and the table plate are connected through the damping hinge assembly.

Further, the seat framework is rotatably connected with a knob corresponding to the top end of the table plate, the table plate is locked through the knob, and the seat framework is positioned at the side part of the knob and is provided with a damping rubber pad for contacting with the table plate.

Further, the table is installed the both ends of damping hinge subassembly side are provided with spacing post the seat skeleton corresponds spacing post position and has seted up spacing hole, spacing post can stretch into spacing downthehole, fang Gu even have on the spacing hole with spacing post contact's stopper.

In the technical scheme, the damping hinge assembly and the seat tea table with the damping hinge assembly have the beneficial effects that:

According to the damping hinge assembly, the damping shaft of the second rod piece is sleeved with the damping spring, the first rod piece receives the damping shaft and the damping spring through the damping hole, the damping spring is in interference fit with the damping shaft to provide constant damping force, when the damping hinge assembly is used, the damping force is constant when the second rod piece rotates relative to the first rod piece under the action of external force, and the rotation can be stopped when the external force is lost at any position;

According to the seat tea table provided by the utility model, the seat tea table plate is connected with the seat framework through the damping hinge assembly, so that the tea table behind the seat has a damping effect, the same beneficial effects as those of the damping hinge assembly are achieved, after the table plate is unfolded, the table plate can be stopped at any rotation position of 0-80 degrees, after the knob is unfolded, the table plate can not be unfolded instantly to emit rapid collision sound, the use experience is good, and the improvement of the product quality is facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is an isometric view of a damped hinge assembly of the present disclosure;

FIG. 2 is an exploded view of the damped hinge assembly of the present disclosure;

FIG. 3a is an isometric view of a first lever of the damped hinge assembly of the present disclosure;

FIG. 3b is an exploded view of a first lever of the damped hinge assembly of the present disclosure;

FIG. 3c is a left side view of a first lever of the damped hinge assembly of the present disclosure;

FIG. 3d is a front view of the damping shaft of the damping hinge assembly of the present disclosure;

FIG. 3e is a left side view of a damping spring of the damping hinge assembly of the present disclosure;

Figure 4 is an isometric view of a chair tea table of the present disclosure;

FIG. 5 is an assembled view of the chair tea table and damped hinge assembly of the present disclosure;

FIG. 6 is an assembled view of a seat tea table seat frame and damped hinge assembly of the present disclosure;

fig. 7 is a schematic view of a folding state of a chair tea table disclosed by the utility model;

Fig. 8 is a schematic view of an opened state of a chair tea table disclosed in the present utility model.

Reference numerals illustrate:

10. The first rod piece, the damping hole, the clamping groove, the first rod piece, the damping hole, the first rod piece, the damping hole, the damping;

20. The second rod piece, 21, a shaft fixing seat, 211, an inserting hole, 212, a second mounting hole, 22, a damping shaft, 221, a circular shaft section, 222, an oil storage tank, 23, a damping spring, 231, a wing part, 232 and an expansion joint;

30. The table board, 31, the screw component, 32, the screw component, 33, the limit column;

40. the seat comprises a seat framework, 41 parts of a knob, 42 parts of a shock-absorbing rubber pad, 43 parts of a limiting block.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

See fig. 1, 2;

the utility model relates to a damping hinge assembly, which comprises a first rod piece 10 and two second rod pieces 20;

The two ends of the first rod piece 10 are rotatably connected with a second rod piece 20;

the second rod 20 comprises a shaft fixing seat 21, a damping shaft 22 and a damping spring 23;

The shaft fixing seat 21 is positioned on the first rod piece 10 and fixedly connected with the damping shaft 22, the damping shaft 22 is sleeved with a damping spring 23 capable of rotating around the axis of the damping shaft 22, the end part of the first rod piece 10 is provided with a damping hole 11 which is used for receiving the damping shaft 22 and can be coupled with the damping spring 23 to fix the position of the damping spring 23, and the damping spring 23 is in interference fit with the damping shaft 22 through self elastic deformation, so that damping force is provided through friction force between the inner wall of the damping spring 23 and the outer wall of the damping shaft 22;

When the damping device is used, the first rod piece 10 is fixed in position, the second rod piece 20 rotates relative to the first rod piece 10, the damping spring 23 is fixed in position in the damping hole 11 of the first rod piece 10 and provides constant damping force, so that the damping force is constant when the second rod piece 20 rotates relative to the first rod piece 10 under the action of external force, and the rotation can be stopped when the external force is lost at any position;

See fig. 3 e:

The damper spring 23 includes a boss portion and a tab portion 231;

The damping spring 23 is made of elastic materials, such as spring steel, and of course, the damping spring 23 can also be made of other elastic materials capable of realizing self elastic deformation in the prior art, the shaft sleeve part of the damping spring 23 is provided with an expansion joint 232, the expansion joint 232 extends from one end of the shaft sleeve part to the other end, the shaft sleeve part is symmetrically and integrally formed with wing parts 231 on two sides of the expansion joint 232, one end of the wing parts 231 is connected with the edge position of the expansion joint 232 of the shaft sleeve part, and the other end extends towards the axial direction away from the shaft sleeve part, wherein the two ends of the first rod member 10 are provided with damping holes 11, the damping shaft 22 and the damping spring 23 are accommodated through the damping holes 11, the cross section shape of the damping holes 11 is matched with the cross section shape of the damping spring 23, as shown in fig. 2, the damping holes 11 are provided with clamping grooves 111, and the two wing parts 231 are received to stop the damping spring 23 from rotating in the first rod member 10;

See fig. 3 b:

One end of the shaft fixing seat 21 can be detachably connected with the damping shaft 22, the end surface of the shaft fixing seat 21 is provided with an inserting hole 211, as shown in fig. 3c, the two sides of the inserting hole 211 are provided with first matching surfaces, so that the inserting hole 211 is a square round hole, one end of the damping shaft 22 is provided with an inserting shaft section, the two sides of the inserting shaft section are provided with second matching surfaces, so that the inserting shaft forms a square round shaft with the cross section matched with the cross section of the inserting hole 211, when the damping shaft is assembled, the inserting shaft section can be inserted into the inserting hole 211 of the shaft fixing seat 21, the damping shaft 22 is blocked from rotating relative to the shaft fixing seat 21 by matching the first matching surfaces and the second matching surfaces, the assembling is convenient, the end, far away from the inserting shaft section, of the damping shaft 22 is provided with a round shaft section 221, and the round shaft section 221 is sleeved with the damping spring 23;

See fig. 3 d:

The damping shaft 22 is a stepped shaft, one end of the damping shaft 22 is a plug-in shaft section, the other end of the damping shaft 22 is a circular shaft section 221, the circular shaft section 221 is provided with a concave oil storage tank 222, the oil storage tank 222 extends from one end of the circular shaft section 221 to the other end, the oil storage tank 222 is used for storing lubricating oil, the plurality of oil storage tanks 222 can be uniformly distributed along the circumferential direction of the circular shaft section 221, the damping springs 23 are arranged on the circular shaft section 221 of the damping shaft 22, the damping springs 23 can do rotary motion on the circular shaft section 221, lubricating oil is stored in the oil storage tank 22, an oil film is formed between the inner wall of the damping springs 23 and the outer wall of the circular shaft section 221 under the action of lubricating oil, and the damping springs 23 can not emit sound of intermetallic friction contact when doing rotary motion on the circular shaft section 221;

in the technical scheme, the damping shaft 22 of the second rod piece 20 is sleeved with the damping spring 23, the damping shaft 22 and the damping spring 23 are received by the first rod piece 10 through the damping hole 11, the damping spring 23 is in interference fit with the damping shaft 22 to provide constant damping force, when the damping hinge assembly is used, the damping force is constant when the second rod piece 20 rotates relative to the first rod piece 10 under the action of external force, and the rotation can be stopped when the external force is lost at any position;

See fig. 4, 5, 6:

The utility model relates to a chair tea table, which comprises a table plate 30 arranged on a chair framework 40 and the damping hinge component;

A first mounting hole is formed in one side of the table plate 30, the first mounting hole is a threaded hole, second mounting holes 212 are formed in two ends of a second rod piece 20 of the damping hinge assembly, a screw assembly 31 penetrates through the second mounting holes 212 to be in threaded connection with the first mounting holes, and the tea table plate 30 and the damping hinge assembly are fixedly connected, as shown in fig. 5;

The seat framework 40 is provided with a third mounting hole, the first rod member 10 is provided with a fourth mounting hole 12, the fourth mounting hole 12 is a threaded hole, the screw assembly 32 penetrates through the third mounting hole and is in threaded connection with the fourth mounting hole 12, and the seat framework 40 and the damping hinge assembly are fixedly connected, as shown in fig. 6;

See fig. 7:

In order to ensure that the position of the table 30 is fixed when the table 30 is folded, in a preferred embodiment, a knob 41 is rotatably connected to the seat frame 40 corresponding to the top end of the table 30, and after the table 30 is folded and retracted, the table 30 is locked by the knob 41, so that the table 30 is fixed at the rear side of the seat frame;

In order to further reduce the noise of the tea table in use, the seat framework 40 is also provided with damping rubber pads 42, the damping rubber pads 42 are distributed on two sides of the knob 42, and the table 30 is in buffer contact with the table 30 through the damping rubber pads 42 after being folded;

See fig. 8:

Preferably, two ends of the side of the table 30, on which the damping hinge assembly is mounted, are provided with limiting posts 33, the seat framework 40 is provided with limiting holes corresponding to the positions of the limiting posts 33, the limiting posts 33 can extend into the limiting holes, limiting blocks 43 are connected to the limiting holes Fang Gu, the table 30 is kept in a horizontal state when being opened by abutting the limiting blocks 43 against the limiting posts 33 of the table 30, when the table 30 is used, the knob 41 rotates to a horizontal position, the table 30 keeps constant damping force in the overturning process, the table 30 can be stopped at any position, and when the table 30 rotates to the horizontal position, the limiting blocks 43 lock the table 30, so that the table 30 is prevented from continuously rotating;

In the technical scheme, the seat tea table plate 30 is connected with the seat framework 40 through the damping hinge assembly, so that the seat tea table at the rear of the seat has a damping effect, after the seat tea table is unfolded, the seat tea table plate 30 can be stopped at any rotation position of 0-80 degrees, after the knob is unfolded, the seat tea table plate cannot be unfolded instantly to emit rapid collision sound, the use experience is good, and the improvement of the product quality is facilitated.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims (10)

1. A damped hinge assembly, comprising:

a first rod (10);

The second rod piece (20) can be rotatably arranged at the end part of the first rod piece (10) through a damping shaft (22), a damping spring (23) capable of rotating around the axis of the damping shaft (22) is sleeved on the damping shaft (22), and the damping spring (23) is in interference fit with the damping shaft (22);

The end part of the first rod piece (10) is provided with a damping hole (11) which is used for receiving the damping shaft (22) and can be coupled with the damping spring (23) so as to fix the damping spring (23) in position.

2. The damped hinge assembly of claim 1, wherein the damping hinge assembly comprises a hinge assembly;

the damping spring (23) comprises a sleeve portion and a tab portion (231);

The shaft sleeve part is provided with an expansion joint (232), the expansion joint (232) extends from one end of the shaft sleeve part to the other end, one end of the wing piece part (231) is connected with the edge position of the expansion joint (232) of the shaft sleeve part, and the other end extends towards the direction deviating from the axis of the shaft sleeve part.

3. The damped hinge assembly of claim 2, wherein;

a clamping groove (111) is formed in the side wall of the damping hole (11), and the wing part (231) is received through the clamping groove (111) so as to prevent the damping spring (23) from rotating in the first rod piece (10).

4. The damped hinge assembly of claim 1, wherein the damping hinge assembly comprises a hinge assembly;

One end of the damping shaft (22) is provided with a circular shaft section (221) sleeved with the damping spring (23), the circular shaft section (221) is provided with a concave oil storage groove (222) for storing lubricating oil, and the oil storage groove (222) extends from one end of the circular shaft section (221) to the other end.

5. The damped hinge assembly of claim 1, wherein the damping hinge assembly comprises a hinge assembly;

The second rod piece (20) further comprises a shaft fixing seat (21), and the damping shaft (22) can be detachably and fixedly connected with the shaft fixing seat (21).

6. The damped hinge assembly of claim 5, wherein;

The end face of the shaft fixing seat (21) is provided with an inserting hole (211), and one end of the damping shaft (22) is provided with an inserting shaft section which is connected with the inserting hole (211) in an inserting and pulling mode.

7. The damped hinge assembly of claim 1, wherein the damping hinge assembly comprises a hinge assembly;

The first rod piece (10) is provided with a fourth mounting hole (12), the shaft fixing seat (21) of the second rod piece (20) is provided with a second mounting hole (212), and the second mounting hole (212) and the fourth mounting hole (12) are provided with connecting pieces.

8. A chair tea table comprising a table (30) mounted on a chair frame (40) and a damped hinge assembly according to any one of claims 1 to 7, said chair frame (40) and said table (30) being connected by said damped hinge assembly.

9. The chair tea table of claim 8 wherein;

The seat framework (40) is rotatably connected with a knob (41) corresponding to the top end of the table plate (30), the table plate (30) is locked through the knob (41), and the seat framework (40) is positioned at the side part of the knob (41) and is provided with a damping rubber pad (42) for contacting with the table plate (30).

10. The chair tea table of claim 8 wherein;

Limiting columns (33) are arranged at two ends of the side of the damping hinge assembly, limiting holes are formed in the positions, corresponding to the limiting columns (33), of the seat framework (40), the limiting columns (33) can extend into the limiting holes, and limiting blocks (43) in contact with the limiting columns (33) are connected to the limiting holes Fang Gu.