CN216886397U - Force unloading mechanism of seat table plate - Google Patents

Abstract

The utility model discloses a force unloading mechanism of a seat table, which comprises a seat and a table main body, wherein two rotating shafts in the left and right directions are fixedly arranged at the back of the seat, the lower part of the table main body is rotatably sleeved on the rotating shafts through rotating shaft holes, the table main body comprises an upper cover plate and a lower base plate, a sliding groove positioned above the rotating shafts is arranged in the upper cover plate, a sliding block capable of moving up and down is arranged in the sliding groove, a boss matched with the sliding block is arranged at the corresponding position of the rotating shafts, a torsion spring is also arranged in the upper cover plate, one end of the torsion spring is pressed above the sliding block, and the other end of the torsion spring abuts against the upper cover plate. The force unloading is realized through the matching of the sliding block and the lug boss, the force unloading protection is carried out on the table plate under the state that the bearing capacity is over-limit, and the service life is better prolonged.

Description

Force unloading mechanism of seat table plate

Technical Field

The utility model relates to a force unloading mechanism of a seat table.

Background

The dining table board that car seat used in the existing market is mostly the bearing design that is less than or equal to 5kg, after putting into market, has more passengers to violate the transfinite use dining table board for the mechanism damages seriously, and whole function is inefficacy.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide a force unloading mechanism of a seat table.

The utility model is realized by the following technical scheme:

the utility model provides a power unloading mechanism of seat table, includes seat and table main part, the fixed pivot that sets up two edges left right direction in seat back, the below of table main part is established in the pivot through setting up pivot hole rotatable cover, the table main part includes upper cover plate and lower plate, be equipped with the spout that is located the pivot top in the upper cover plate, set up the slider that can reciprocate in the spout, the pivot sets up and slider complex boss in the relevant position, still be equipped with a torsional spring in the upper cover plate, the top at the slider is pressed to the one end of torsional spring, the other end of torsional spring supports the upper cover plate.

In the embodiment of the utility model, the rotating shaft is provided with the salient point matched with the sliding block above the boss.

In the embodiment of the utility model, the boss is provided with the cambered surface matched with the sliding block.

In the embodiment of the utility model, the upper cover plate is provided with the raised central column and the limiting column, the torsion spring is arranged on the central column, and the other end of the torsion spring abuts against the limiting column.

In the embodiment of the utility model, a sinking groove is arranged below the table board main body, and the two rotating shaft holes are arranged on two sides of the sinking groove.

In the embodiment of the utility model, the rotating shaft comprises a connecting part and a column body, the column body extends into the rotating shaft hole in the table plate main body, the connecting part is provided with an installation hole for installing a self-tapping screw, and the connecting part is fixed to the back of the seat through the self-tapping screw.

In the embodiment of the utility model, the back part of the seat is provided with a switch structure which can be matched and locked with the table plate main body.

In the embodiment of the utility model, the upper cover plate and the lower bottom plate are welded by ultrasonic waves to form the table board main body.

In the embodiment of the utility model, the sliding groove is made of a material with higher strength.

In the embodiment of the utility model, the rotating shaft is made of a high-strength and wear-resistant material.

The force unloading mechanism of the seat table plate has the following beneficial effects:

1. the force unloading is realized through the matching of the sliding block and the lug boss, the force unloading protection is carried out on the table plate under the state that the bearing capacity is over-limit, and the service life is better prolonged.

2. The pivot adds the bump in the top of boss, makes the table drop certain angle earlier, and is safer, and the use feels better.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a perspective view of the present invention.

Fig. 2 is an exploded view of the table main body.

Fig. 3 is another exploded view of the table main body.

Fig. 4 is a schematic view of the table main body in a closed state.

Fig. 5 is a schematic view of the table main body at an opened angle.

Fig. 6 is a schematic view of the table main body in a use state.

Fig. 7 is a schematic view of the table main body in an unloaded state.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be obtained by a person skilled in the art without inventive efforts based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.

Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the utility model. In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein.

Referring to the attached drawings of the specification, the utility model discloses a force unloading mechanism of a seat table, which comprises a seat 200 and a table main body 100, wherein two rotating shafts 300 along the left and right directions are fixedly arranged at the back of the seat, a sinking groove 130 is arranged below the table main body, and the two rotating shafts are inserted into the table main body through rotating shaft holes 140 at two sides of the sinking groove; the table main part includes upper cover plate 110 and lower plate 120, is equipped with the spout 111 that is located the pivot top in the upper cover plate, sets up the slider 400 that can reciprocate in the spout, and the slider is not extrudeed the pivot when being in the below and makes the table can normally overturn, is equipped with in the pivot with slider complex boss 310, still is equipped with a torsional spring 500 in the upper cover plate, and the one end pressure of torsional spring is in the top of slider, and the other end supports the upper cover plate. The cooperation of slider and boss realizes unloading power mechanism, when the table atress exceeded upper limit bearing force value, the slider can be by boss jack-up to the slider crosses the boss and no longer receives the support, makes the table turn over the uninstallation down.

In order to facilitate the upward recovery of the desk plate in the unloaded state, the boss has an arc surface 311 matched with the slider. The slider utilizes the cambered surface can be more laborsaving when upwards recovering from the uninstallation state, and convenience of customers operates.

Further, the pivot still is equipped with bump 320 in the top of boss, and after opening the table, the slider cooperates with the bump earlier, makes the table open certain angle earlier, can not drop fast immediately, and is safer, and user experience feels better.

The slider is firmly pressed down to the inside torsional spring one end of table, makes the slider be located the below of spout, therefore the slider can normally upwards overturn or transfer in the pivot department of no boss. Referring to fig. 5, after the desk board is opened, the sliding block automatically falls to be matched with the salient point, and the desk board is opened at a certain angle; and slightly applying force to make the sliding block be matched and clamped above the boss, so that the opening angle of the table plate is increased to be in the use state shown in figure 6. When the stress above the table plate is continuously increased and exceeds the upper limit bearing force value, the boss reversely extrudes the slide block, so that the slide block moves upwards along the slide way to cross the boss, the lower part of the slide block is not limited any more, and the dining table plate is turned downwards to be in the unloading state shown in the figure 7. When the table after the uninstallation is to be retrieved, need the effort in the table below, make the reverse suppression slider of boss, with the top of the boss is got back to the slider jack-up, the table is got back to normal bearing within range this moment, and the slider does not extrude the pivot, and the table can normally retrieve and transfer. At this time, the table is turned upwards to fit the seat, and the switch structure 210 on the back of the seat is used to lock the upper part of the table main body, so that the table is in the closed state shown in fig. 4.

Because the slider need receive great effort at uninstallation and reset in-process, consequently, the intensity requirement to the spout is higher, and the spout need adopt the higher material of intensity such as stainless steel. Meanwhile, in order to prevent the bearing range from being reduced due to abrasion after the salient points and the bosses are frequently used for a long time, the rotating shaft needs to be made of stainless steel and other hard and wear-resistant materials.

In the embodiment, the upper cover plate is provided with a raised central column 112 and a limiting column 113, the torsion spring is mounted on the central column, one end of the torsion spring is pressed above the sliding block, and the other end of the torsion spring is abutted against the limiting column. More specifically, the pivot includes connecting portion 330 and cylinder, and the cylinder stretches into the pivot hole in the table main part, and boss and bump setting are equipped with the mounting hole 331 that is used for installing self tapping screw on the connecting portion on the cylinder, fixes connecting portion to the back of seat through self tapping screw. The upper cover plate and the lower bottom plate form a table plate main body through ultrasonic welding. The sunken groove of table is equipped with the complex dog, and the skeleton is used for sheltering from the connecting portion of pivot in order to promote the aesthetic property.

The top of table is equipped with the decurrent sloping block of inboard slope, and the relevant position at seat back is equipped with the recess, pin joint and sloping block complex switch structure 210 in the recess, and the inboard of switch is equipped with the appearance chamber that can hold the sloping block, and the scarce groove that can insert the sloping block is seted up to the below of switch, sets up the spring of usefulness that resets between switch and the heavy groove. The lower end of the switch is provided with an inclined plane which inclines inwards, the inclined plane is matched with the inclined angle of the inclined block, and the inclined block can push the switch to rotate upwards when being recovered upwards.

While the foregoing specification illustrates and describes the preferred embodiments of the present invention, it is to be understood that the utility model is not limited to the precise forms disclosed herein and is not to be considered in an exclusive sense, as the utility model may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, either by the above teachings or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (8)

1. The utility model provides a power unloading mechanism of seat table, a serial communication port, including seat and table main part, seat back is fixed to set up two pivots along left right direction, the below of table main part is established in the pivot through setting up pivot hole rotatable cover, the table main part includes upper cover plate and lower plate, be equipped with the spout that is located the pivot top in the upper cover plate, set up the slider that can reciprocate in the spout, the pivot sets up and slider complex boss in the relevant position, still be equipped with a torsional spring in the upper cover plate, the top at the slider is pressed to the one end of torsional spring, the other end of torsional spring supports the upper cover plate.

2. A force relieving mechanism for a chair table as claimed in claim 1, wherein the shaft is provided with a boss above the boss for engaging with the slider.

3. A force relieving mechanism for a seat table as claimed in claim 1 wherein the boss has an arcuate surface for engaging the slider.

4. A force relieving mechanism as claimed in any one of claims 1 to 3, wherein the upper cover plate is provided with a raised central post and a limiting post, the torsion spring is mounted on the central post, and the other end of the torsion spring abuts against the limiting post.

5. A force relieving mechanism as claimed in any one of claims 1 to 3, wherein a sink is provided below the table body, and the two pivot holes are provided on both sides of the sink.

6. The force unloading mechanism for the seat table as claimed in claim 5, wherein the rotation shaft comprises a connection portion and a column, the column extends into a rotation shaft hole in the table main body, the connection portion is provided with a mounting hole for mounting a self-tapping screw, and the connection portion is fixed to the back of the seat through the self-tapping screw.

7. The force unloading mechanism for the seat table as claimed in claim 1, wherein the seat back is provided with a switch structure which can be matched and locked with the table main body.

8. The force unloading mechanism for the seat table as claimed in claim 1, wherein the upper cover plate and the lower base plate are welded by ultrasonic waves to form the table main body.

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