CN205149585U - Connecting rod formula leg is by extending mechanism - Google Patents

Abstract

The utility model discloses a link-type leg rest extension mechanism, which comprises: a seat plate, grooves are arranged at corresponding positions on both sides of the seat plate, and the grooves are parallel; a guide rail, the guide rail is arranged on the recess in the groove, and can slide in the groove; one leg depends on the stretch plate group, and the leg stretch plate group is arranged on both sides of the seat plate to support the user's legs; one connecting arm group, The connecting arm group is respectively connected with the leg extension board group and the guide rail, and supports the leg extension board group; a motor, the motor is respectively connected with the guide rail and the seat plate, and drives The rail slides. The connecting rod-type leg rest extension mechanism of the utility model adopts a connecting rod-type design so that the motor is more labor-saving, and at the same time the structure is simpler, the cost is reduced, and the assembly is convenient.

Description

Linkage leg extension mechanism

technical field

The utility model relates to the technical field of seats, in particular to a link-type leg rest extension mechanism.

Background technique

The multi-functional seat includes sitting position to lying position. When the legs are leaning on the lying position, it should be turned up. The process of tilting should be stable. The process of tilting up and after being flattened has no gap with the chair cushion. After lying flat, the seat will be like a bed. Same comfort for passengers. To realize this function, the screw motor is required to push the sliding rod mechanism to move forward, and at the same time, a mechanism is required to be able to tilt up the leg rest. The front end of the sliding rod is originally equipped with rollers. Larger, more materials are used for the leg extension board, and the machining accuracy of the roller motion track line is high, and the cost is high.

Utility model content

In view of this, the utility model proposes a link-type leg rest extension mechanism to solve the friction of the rollers in the prior art. question.

In order to achieve the above purpose, the technical solution of the present utility model is realized in the following way: a link type leg rest stretching mechanism, comprising:

A seat plate, grooves are arranged at corresponding positions on both sides of the seat plate, and the grooves are parallel;

a guide rail, the guide rail is arranged in the groove and can slide in the groove;

One leg rests on the stretching plate set, and the leg stretching plate set is arranged on both sides of the seat plate to support the user's legs;

a connecting arm group, the connecting arm group is respectively connected with the leg rest stretching plate set and the guide rail, and supports the leg stretching plate set;

A motor, the motor is respectively connected with the guide rail and the seat plate, and drives the guide rail to slide.

The above-mentioned link-type leg rest extension mechanism, wherein the seat plate includes: a support plate, the support plate is a plate-shaped structure, and the bottom of the support plate is provided with a fixing seat for fixing the motor; A pan side plate group, the pan side plate set includes two pan side plates, each of the pan side plates has the same structure and is respectively arranged at both ends of the support plate, the pan side plates are parallel, Each of the side plates of the base plate is provided with the groove.

The aforementioned link-type leg extension mechanism, wherein the guide rail includes a slide rail set and a fixing plate, and the slide rail set includes two slide rails, each of which has the same structure and is respectively arranged on the Two ends of the fixing plate are nested in the groove, and the slide rail can slide in the groove.

The above-mentioned link-type leg rest stretching mechanism, wherein, the leg rest stretch plate set includes two leg rest stretch plates, each of which has the same structure as a strip-like structure, and each of the leg rest stretch plates The legs are hinged to the corresponding side plate of the seat pan by one end of the stretch plate.

The aforementioned link-type leg rest extension mechanism, wherein, the connecting arm group includes two connecting arms, each of which has the same structure, and each of the connecting arms is respectively arranged at both ends of the fixing plate, One end of each connecting arm is hinged to the corresponding end of the fixing plate, and the other end is hinged to the leg on the same side by the stretching plate, and the legs are supported by the stretching plate.

The above-mentioned connecting rod type leg rest extension mechanism, wherein, the motor is arranged on the fixing seat below the support plate, the motor is provided with a screw, and one end of the screw is set on the fixing plate, The motor drives the screw to rotate.

In the aforementioned link-type leg rest stretching mechanism, the connecting arm is connected to the leg rest stretching plate through a first pivot pin, and the connecting arm is connected to the fixing plate through a second pivot pin.

The aforementioned link-type leg rest extension mechanism, wherein, the leg rest extension plate is connected to the seat pan side plate through a third pivot pin.

The utility model is owing to have adopted above-mentioned technology, and the positive effect that produces is:

(1) The connecting rod type leg rest stretching mechanism of the utility model adopts the connecting rod type design to make the motor more labor-saving, and at the same time, the structure is simpler, the cost is reduced, and the assembly is convenient.

(2) Simultaneously, the utility model is also provided with a guide rail to make the seat slide more conveniently.

(3) Simultaneously, the combination of the design of the connecting rod type and the sliding type of the guide rail in the utility model can achieve flat lying, making the seat feel comfortable to the passengers like a bed.

Description of drawings

The accompanying drawings constituting a part of the utility model are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is the explosion diagram of the connecting rod type leg extension mechanism of the present invention;

Fig. 2 is the enlarged view of the I part of the connecting rod type leg by the extension mechanism of the utility model;

Fig. 3 is a diagram 1 of the use state of the connecting rod type leg extension mechanism of the present invention;

Fig. 4 is the second diagram of the use state of the connecting rod type leg rest extension mechanism of the present invention.

In the accompanying drawings: 1, seat plate; 11, support plate; 12, seat plate side plate; 13, groove; 14, fixed seat; 2, guide rail; 21, fixed plate; 22, slide rail; 3, leg extension 4. Connecting arm; 5. Motor; 6. Screw rod; 7. First pivot pin; 8. Second pivot pin; 9. Third pivot pin.

detailed description

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the utility model.

Fig. 1 is an exploded view of the connecting rod type leg rest extension mechanism of the present invention, please refer to Fig. 1 . The link-type leg rest extension mechanism includes a base plate 1, a leg rest extension plate set, a connecting arm set, a guide rail 2 and a motor 5. Two parallel grooves 13 are arranged on the base plate 1, the guide rail 2 is set in the grooves 13, and slides in the grooves 13, and the legs are arranged on the Both sides of the seat plate 1 support the user's legs, and the connecting arm groups are respectively connected with the guide rail 2 and the leg stretching board group to support the leg stretching board group, and the motor 5 is arranged on the base plate 1, the motor 5 is provided with a screw 6, one end of the screw 6 is connected with the guide rail 2, the motor 5 drives the screw 6 to rotate, and the screw will Rotational motion is converted into linear motion, driving the guide rail 2 to slide towards the end where the leg rests on the stretching plate set, thereby generating a relative displacement with the seat plate 1, and prompting the legs to tilt up by the stretching plate set.

The utility model also has following embodiment on above-mentioned basis:

Fig. 2 is the magnified view of the extension mechanism I part of the connecting rod type leg of the utility model, please combine shown in Fig. 1 and Fig. 2. The base plate 1 includes a support plate 11 and a set of base plate side plates, the set of base plate side plates includes two base plate side plates 12, and the base plate side plates 12 are respectively arranged in parallel at both ends of the support plate 11 , each of the seat pan side plates 12 has the same structure, and the seat pan side plates 12 are provided with grooves 13 . The support plate 11 is a plate structure, and the bottom of the support plate 11 is provided with a fixing base 14 for fixing the motor 5 and supporting the user.

The leg rest stretching board group includes two leg rest stretching boards 3, each of the leg stretching boards 3 has the same structure and is a strip-shaped structure, and the leg stretching boards 3 are respectively arranged on the seat plate 1 On both sides, the legs are hinged at one end of the extension plate 3 to the corresponding seat pan side plate 12 to support the user's legs.

The guide rail 2 includes a slide rail group and a fixed plate 21, the slide rail group includes two slide rails 22, each of which has the same structure, and each of the slide rails 22 is respectively fixed on the fixed plate 21 two ends, and nested in the groove 13, the slide rail 22 can slide in the groove 13.

The connecting arm group includes two connecting arms 4, each of which has the same structure. One end of the plate 21 is hinged, and the other end is hinged with the same side of the leg extension board 3 , and the connecting arm 4 supports the leg extension board 3 .

Fig. 3 is the use state diagram 1 of the link type leg rest extension mechanism of the utility model, and Fig. 4 is the use state diagram 2 of the utility model link type leg rest extension mechanism, please refer to Fig. 2-4. The motor 5 is arranged on the fixed seat 14 below the support plate 11, one end of the screw mandrel 6 is arranged on the fixed plate 21, the motor 5 drives the screw mandrel 6 to rotate, and the screw mandrel 6 will Rotational motion is converted into linear motion, pushing the guide rail 2 to slide towards the end where the leg rests on the stretching plate set.

In a further embodiment of the present utility model, the connecting arm 4 is connected with the leg extension plate 3 through the first pivot pin 7, and the connecting arm 4 is connected with the fixing plate 21 through the second pivot pin 8, so that Said leg leans on the extension plate 3 and is connected to said seat pan side plate 12 through a third pivot pin 9 .

The specific working process of the utility model: the motor 5 is turned on, drives the screw mandrel 6 to rotate, and converts the rotary motion into a linear motion to push the guide rail 2 to slide towards the end where the leg rests on the stretching plate group. The guide rail 2 and the seat plate 1 produce relative displacement, the connecting arm 4 is fixed on the guide rail 2, and moves with the guide rail 2, and the legs rely on the extension plate 3 and the connecting arm 4 and the The seat plate side plate 11 is connected, under the action of the connecting arm 4 and the seat plate side plate 11, the legs are pushed up by the connecting arm 4 by the extension plate 3, and the pivot point is the third pivot pin 9, During the upward warping process, the first pivot pin 7 and the second pivot pin 8 are rotating as pivot points.

The connecting rod type leg rest extension mechanism of the utility model adopts the connecting rod type design to make the motor more labor-saving, and at the same time the structure is simpler, the cost is reduced, and the assembly is convenient; at the same time, the utility model is also provided with a guide rail 2 to make the seat slide more convenient; at the same time, the utility model The combination of the connecting rod design and the sliding guide rail design in the utility model can achieve flat lying, making the seat as comfortable as a bed for passengers.

In summary, the above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the implementation and protection scope of the present utility model. For those skilled in the art, they should be able to realize The solutions obtained by equivalent replacements and obvious changes made in the contents of the illustrations shall all be included in the protection scope of the present utility model.

Claims (8)

1. link-type leg is by an extension means, it is characterized in that, comprising:

One attic base, corresponding position, described attic base both sides is provided with groove, described indention parallel;

One guide rail, described guide rail is arranged in described groove, and can slide in described groove;

One leg is by stretching plate group, and described leg is arranged on described attic base both sides by stretching plate group, supports the leg of user;

One connecting arm group, described connecting arm group is connected with described guide rail by stretching plate group with described leg respectively, supports by stretching plate group described leg;

One motor, described motor is connected with described guide rail and described attic base respectively, drives described slide.

2. link-type leg according to claim 1 is by extension means, and it is characterized in that, described attic base comprises:

One stay bearing plate, described stay bearing plate is platy structure, is provided with permanent seat bottom described stay bearing plate, in order to fixing described motor;

One attic base side plate group, described attic base side plate group comprises two attic base side plates, and attic base lateral plate structure described in each is identical and be separately positioned on described stay bearing plate two ends, and described attic base side plate is parallel, and attic base side plate described in each is provided with described groove.

3. link-type leg according to claim 2 is by extension means, it is characterized in that, described guide rail comprises slide rail set and adapter plate, described slide rail set comprises two slide rails, rail structure described in each is identical and be separately positioned on described adapter plate two ends, described adapter plate two ends are nested in described groove, and described slide rail can slide in described groove.

4. link-type leg according to claim 3 is by extension means, it is characterized in that, described leg comprises two legs by stretching plate by stretching plate group, and leg described in each is identical by stretching plate structure, for long strip-board shape structure, leg described in each is hinged with corresponding described attic base side plate by stretching plate one end.

5. link-type leg according to claim 4 is by extension means, it is characterized in that, described connecting arm group comprises two connecting arms, described in each, connecting arm structure is identical, connecting arm described in each is separately positioned on described adapter plate two ends, connecting arm one end described in each respectively one end corresponding to described adapter plate is hinged, and the described leg of the other end and homonymy is hinged by stretching plate, supports by stretching plate described leg.

6. the link-type leg according to any one of claim 3-5 is by extension means, it is characterized in that, described motor arranges on the permanent seat below described stay bearing plate, and described motor is provided with screw mandrel, described screw mandrel one end is arranged on described adapter plate, and described motor drives described screw mandrel to rotate.

7. link-type leg according to claim 5 is by extension means, and it is characterized in that, described connecting arm is connected by the first pivot pin by stretching plate with described leg, and described connecting arm is connected by the second pivot pin with described adapter plate.

8. link-type leg according to claim 4 is by extension means, it is characterized in that, described leg is connected by the 3rd pivot pin with described attic base side plate by stretching plate.