CN220694827U - Concealed adjusting telescopic mechanism for seat - Google Patents

Abstract

The utility model provides a hidden type adjusting telescopic mechanism for a seat, which comprises a mounting main frame, a guide pipe and an adjusting component with a limiting function, wherein the adjusting component comprises a sliding pipe capable of sliding along the inside of the guide pipe, the sliding pipe is connected with a foot rest pillow, the guide pipe is completely fixed in the mounting main frame, the sliding pipe can be completely hidden in the guide pipe when the foot rest pillow is in a retraction state, and the hidden arrangement of the adjusting telescopic mechanism is realized on the premise of not influencing the appearance of the mounting seat frame.

Description

Concealed adjusting telescopic mechanism for seat

Technical Field

The utility model relates to the field of seats, in particular to a hidden type adjusting telescopic mechanism for a seat.

Background

The most common foot rest devices of some ergonomic seats are hidden adjusting telescopic mechanisms of the seats, and in order to make users feel more comfortable, a foot rest device is often arranged under the seat body of the seat, and the foot rest device is usually arranged on the seat, but the telescopic mechanism for adjusting the foot rest position is still wholly or partially exposed outside the seat frame due to design defects, high manufacturing cost and the like.

For example, in the leg rest apparatus of CN 217510144, as shown in fig. 2 and 6 of the patent, a reference seat 14 is provided on the front side of the lower surface of the seat frame 1, a first inclined locking surface 142 is provided on the front side of the reference seat 14, a second inclined locking surface 32 which can be engaged with the first inclined locking surface 142 when the connection seat 3 moves below the seat frame 1 is provided on the rear side of the connection seat 3, and when the first inclined locking surface 142 and the second inclined locking surface 32 are engaged with each other on the front side of the reference seat 14, the telescopic adjustment rod 2 and the leg rest are accommodated in place; however, the reference seat 14 is exposed outside the seat frame 1, occupies the space below the seat frame 1, and is easy to collide with the outside, thereby affecting the use effect.

For this purpose, the applicant has found, through a beneficial search and study, a solution to the above-mentioned problems, against which the technical solutions to be described below are developed.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide a hidden adjusting telescopic mechanism for a seat, which comprises a mounting main frame, a guide pipe and an adjusting component with a limiting function, wherein the adjusting component comprises a sliding pipe capable of sliding along the inside of the guide pipe, the sliding pipe is connected with a foot rest pillow, and the guide pipe is completely fixed in the mounting main frame, so that the sliding pipe can be completely hidden in the guide pipe when the foot rest pillow is in a retracted state, and the integral hiding of the adjusting telescopic mechanism is realized.

The technical scheme of the utility model is realized as follows:

a concealed adjustment telescoping mechanism for a seat, comprising:

the guide pipe is arranged in the installation main frame and is fixed relative to the installation main frame; the adjusting assembly comprises a sliding pipe and a foot rest pillow arranged at the front end of the sliding pipe, the sliding pipe is inserted into the guide pipe and can slide relative to the guide pipe, and an avoidance port for the sliding pipe to pass out is arranged at the front end of the mounting main frame; the hidden type adjusting telescopic mechanism is provided with an extraction state and a retraction state; when the sliding tube slides along the direction away from the guide tube, the foot rest pillow is in an extraction state, and when the sliding tube slides along the direction close to the guide tube until the sliding tube is completely hidden inside the guide tube, the foot rest pillow is switched to a retraction state.

Preferably, the adjusting assembly further comprises a limit rivet, wherein a limit mounting hole is preset in the sliding tube, and the limit rivet is mounted in the limit mounting hole; the guide pipe is provided with a guide chute in advance, and when the hidden adjusting telescopic mechanism is in an extraction state, the head of the limit rivet is abutted with the front end of the guide chute to limit the sliding trend of the sliding pipe.

Preferably, the sliding range of the sliding tube is the same as the length of the guide chute on the guide tube, and the range of the sliding tube can be limited by skillfully limiting the length of the guide chute.

Preferably, the sliding range length of the sliding tube is 120-150mm.

Preferably, when the foot rest is switched to the retraction state, the adjusting component is limited to slide by the installation main frame, the seat frame structure is skillfully utilized to limit the adjusting component, and redundant limiting pieces are not required to be arranged.

Preferably, the lower part of the installation main frame is connected to a bottom shell, the bottom shell is equivalent to a covering part of the installation seat frame, the foot rest pillow is rotationally connected to the front end of the sliding tube, a bulge is arranged on the bottom surface of the foot rest pillow, when the hidden adjusting telescopic mechanism is in a retracted state, the foot rest pillow is backwards turned over under the sliding tube, and the front end of the bottom shell is in butt joint with the bulge to limit the sliding trend of the sliding tube.

Preferably, the mounting total frame and the bottom shell are all open modules, and can be produced in batches according to requirements.

Preferably, the guide tube is fixed relative to the mounting frame: a connecting plate is arranged in the installation main frame, the connecting part belongs to a transition plate between the guide pipe and the installation main frame, an integrally formed installation base is preset in the installation main frame, and a first screw hole is preset in the installation base; the guide pipe is provided with a preset installation bent plate, the installation bent plate is relatively fixed with the guide pipe, a second screw hole is preset in the installation bent plate, a first through hole and a second through hole are preset in the connecting plate, a threaded fastener penetrates through the first through hole and the second through hole and is screwed into the first screw hole and the second screw hole respectively, and the guide pipe and the installation main frame are fixed together.

Preferably, the connecting plate, the guide pipe and the installation bent plate are metal parts, and the installation bent plate is welded on the guide pipe, so that the structural strength of the parts is ensured.

Preferably, the sliding tube and the connecting plate are symmetrically arranged on the left and right sides of the guide tube, so that the mechanism is more stable in operation and support.

The principle and beneficial effects of the utility model adopting the technical scheme are as follows:

the utility model aims at providing a hidden type adjusting telescopic mechanism for a seat, which comprises a mounting main frame, a guide pipe and an adjusting component with a limiting function, wherein the adjusting component comprises a sliding pipe which can slide along the inside of the guide pipe, the sliding pipe is connected with a foot rest pillow, the guide pipe is completely fixed in the mounting main frame, the sliding pipe can be completely hidden in the guide pipe when the foot rest pillow is in a retracted state, and the hidden arrangement of the adjusting telescopic mechanism is realized on the premise of not influencing the appearance of the mounting seat frame.

Drawings

FIG. 1 is an exploded view of the concealed adjustment telescoping mechanism;

FIG. 2 is a schematic view of a mounting frame;

fig. 3 is a schematic view of the structure of the bottom shell limit after the foot rest is retracted;

FIG. 4 is a schematic structural view of a connection plate;

FIG. 5 is a schematic view of the structure of a guide tube;

FIG. 6 is a schematic structural view of an adjustment assembly;

FIG. 7 is an enlarged schematic view of the limit rivet in the guide chute as the foot rest is withdrawn;

FIG. 8 is an exploded view of the mounting assembly frame, mounting bar, and seat cushion of the embodiment;

fig. 9 is a schematic view of the structure of a seat cushion in the embodiment;

FIG. 10 is a schematic view of the structure of the mounting bar in the embodiment;

FIG. 11 is a schematic view showing the connection of the mounting bar to the seat cushion in an embodiment;

FIG. 12 is a partial cross-sectional view of the mounting frame, mounting bar, and seat cushion of the embodiment

FIG. 13 is an enlarged cross-sectional view of the mounting bar of the embodiment;

the reference numerals are as follows: the seat cushion comprises a seat cushion body, a 2-mounting main frame, a 3-connecting plate, a 4-guide pipe, a 5-adjusting component, a 6-mounting strip, a 7-limit rivet, an 8-covering cloth, a 11-bottom shell, a 101-first groove, a 102-flat groove, a 103-upper part, a 104-lower part, a 201-first screw hole, a 202-mounting base, a 203-avoidance opening, a 204-mounting bayonet, a 205-flat strip, a 206-annular edge, a 207-substrate, a 208-side plate, a 209-containing groove, a 301-first through hole, a 302-second through hole, a 41-mounting bent plate, a 401-guiding chute, a 402-second screw hole, a 501-bulge, a 502-sliding pipe, a 503-limit mounting hole, a 504-foot rest pillow, a 601-mounting buckle, a 602-annular body, a 603-process opening, a 604-inner side plate, a 605-outer side plate, a 606-framework body and a 607-second groove.

Description of the embodiments

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, the term "at least one" refers to one or more, unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The specific embodiments of the present utility model are as follows:

as shown in fig. 1 to 7, the present utility model is a hidden type adjusting and telescoping mechanism for a seat, which is generally applicable to a leg rest device of a seat, and includes a mounting main frame 2, a guide tube 4 and an adjusting assembly 5 having a limiting function, wherein the mounting main frame 2 is an open mold, and can be manufactured in a large scale through a mold forming process, and the guide tube 4 is disposed inside the mounting main frame 2 and is fixed relative to the mounting main frame 2; the adjusting assembly 5 comprises a sliding tube 502 and a foot rest pillow 504 arranged at the front end of the sliding tube 502, the sliding tube 502 is inserted into the guide tube 4 and can slide relative to the guide tube 4, and an avoidance port 203 for the sliding tube 502 to penetrate out is arranged at the front end of the mounting main frame 2; the hidden type adjusting telescopic mechanism is provided with an extraction state and a retraction state; when the slide tube 502 slides in a direction away from the guide tube 4, the footrests 504 are in the extracted state, and when the slide tube 502 slides in a direction close to the guide tube 4 until completely hidden inside the guide tube 4, the footrests 504 are switched to the retracted state.

As shown in fig. 7, the limit of the sliding tube 502 by the hidden adjustment telescopic mechanism in the extracted state is realized as follows: the adjusting assembly 5 further comprises a limit rivet 7, wherein a limit mounting hole 503 is preset on the sliding tube 502, and the limit rivet 7 is mounted in the limit mounting hole 503; the guide pipe 4 is preset with a guide chute 401, and when the hidden adjusting telescopic mechanism is in an extraction state, the head of the limit rivet 7 is abutted with the front end of the guide chute 401 to limit the sliding trend of the sliding pipe 502.

Further, the sliding range length of the sliding tube 502 is the same as the length of the guide chute 401 on the guide tube 4, that is, the sliding range of the sliding tube 502 can be changed by changing the length of the guide chute 401, but considering the height of the human body and the telescopic structure of the foot rest, the sliding range length of the sliding tube 502 is configured to be 120-150mm, that is, the length range of the guide chute 401 is 120-150mm.

As shown in fig. 3, the limit of the hidden adjusting telescopic mechanism to the adjusting assembly 5 in the retracted state is realized as follows:

the lower part of the installation total frame 2 is connected to a bottom shell 11, the bottom shell 11 is used as a covering piece of the installation total frame 2, the covering piece is also an open module, the covering piece can be manufactured in a large batch through a mould forming process, a foot rest pillow 504 is rotationally connected to the front end of a sliding tube 502, a protrusion 501 is arranged on the bottom surface of the foot rest pillow 504, when the hidden type adjusting telescopic mechanism is in a retracted state, the foot rest pillow 504 is backwards turned over under the sliding tube 502, and the front end of the bottom shell 11 is abutted to the protrusion 501 to limit the sliding trend of the sliding tube 502.

In addition, the foot rest 504 is located below the sliding tube 502 after being turned over and retracted, so that the space where the bottom shell 11 is not in contact with the front end of the installation main frame 2 is just filled, the foot rest 504 and the seat shell 11 are integrated in appearance, and the whole installation main frame 2 is full.

As shown in fig. 1-4, the fixation of the guide tube relative to the mounting frame 2 is achieved in such a way that: a connecting plate 3 is arranged in the installation main frame 2, the connecting plate 3 is equivalent to a transition piece between the installation main frame 2 and the guide pipe 4, an integrally formed installation base 202 is preset in the installation main frame 2, and a first screw hole 201 is preset in the installation base 202; the guide pipe 4 is provided with the installation bent plate 41 in advance, the installation bent plate 41 and the guide pipe 4 are relatively fixed, for example, the installation bent plate 41 can be welded on the guide pipe 4, the guide pipe 4 and the installation bent plate 41 are both metal pieces, the structural strength of the metal pieces is high, the connection strength of the installation total frame 2 and the guide pipe 4 can be increased, and the problems of deformation, cracking and the like at the connection position of the installation total frame 2 and the guide pipe 4 can be avoided; the second screw hole 402 is preset on the installation bent plate 41, the first through hole 301 and the second through hole 302 are preset on the connecting plate 3, the threaded fastener penetrates through the first through hole 301 and the second through hole 302 and is screwed into the first screw hole 201 and the second screw hole 402 respectively, and the guide tube 4 and the installation main frame 2 are fixed together.

As shown in fig. 1, in practice, the sliding tube 502 and the connecting plate 3 may be disposed at the center of the inside of the installation frame 2, that is, only the sliding tube 502 and the connecting plate 3 need to be disposed inside the installation frame 2, and the working effect of the hidden adjusting telescopic mechanism may be achieved by one guiding tube 4, but due to the processing and assembling errors, the sliding tube 502, the connecting plate 3 and the guiding tube 4 are difficult to be assembled completely and centrally inside the installation frame 2, so that the sliding tube 502, the connecting plate 3 and the guiding tube 4 are all disposed to be symmetric left and right, and the installation frame 2 may be more stable in the left and right directions due to the design.

As shown in fig. 8, the seat cushion 1 is covered above the mounting frame 2, and the seat cushion 1 is generally made of a flexible material, for example, the seat cushion 1 may be configured as a foam cushion; an annular first groove 101 is pre-arranged on the inner side of the lower part of the seat cushion 1; the mounting total frame 2 includes a base 307 and side plates 308 extending in the left, right, front and rear directions of the seat frame, and a receiving groove 309 for receiving the seat cushion 1 is formed between the side plates 308 and the base 307, which allows a sufficient receiving space after the seat cushion 1 is combined with the mounting total frame 2;

as shown in fig. 8, in order to enable the seat cushion 1 and the mounting frame 2 to be combined quickly and stably, a mounting strip 6 is further arranged between the mounting seat cushion 1 and the mounting frame 2, the mounting strip 6 comprises an annular body 602, the cross section of the annular body 602 is inverted U-shaped, the annular body 202 of the mounting strip 6 is embedded into the first groove 101 of the seat cushion 1 to form an assembly, and the two components are kept relatively fixed, for example, an adhesive can be coated in the first groove 101 to bond the two components together; this arrangement is because the mounting bar 6 is a molded open mold member having a structural strength higher than that of the seat cushion 1, and thus, the combination of the seat cushion 1 and the mounting bar 6 corresponds to an increase in the mounting strength at the joint edge of the seat cushion 1 and the mounting total frame 2.

As shown in fig. 12 and 13, the lower end of the mounting bar 6 is clamped with the mounting main frame 2, and the connection relationship is realized in such a way that: the annular body 602 comprises an annular framework body 606, and two sides of the framework body 606 extend downwards to form an inner side plate 604 and an outer side plate 605; the annular body 602 may be embedded in the first recess 101 of the seat cushion 1; the annular second groove 607 is formed among the framework 606, the inner side plate 604 and the outer side plate 605, so that the combination with the annular edge of the installation main frame 2 is facilitated; the outer side wall of the inner side plate 604 is provided with mounting buckles 601 which are arranged at intervals along the annular direction, an annular edge 206 which is used for being in plug-in fit with the second groove 607 is formed at the upper end of the side plate 208 of the mounting main frame 2, and the annular edge 206 is arranged in an eversion shape, so that the contact area between the annular edge 206 and the second groove 607 is increased; mounting bayonets 204 which are arranged at intervals along the annular direction are preset at the juncture of the upper part of the inner side surface of the side plate 208 and the annular edge 206; the second groove 607 of the mounting strip 6 is aligned with the annular edge 206 of the mounting main frame 2 and is pressed downwards to fasten the two, the mounting buckle 601 of the mounting strip 6 is clamped in the mounting bayonet 204 of the mounting main frame 2, the seat cushion 1 and the containing groove 209 are combined, and the combined connection of the mounting main frame 2 and the seat cushion 1 can be realized without using connecting pieces such as gun nails and threaded fasteners.

In addition, if only the installation effect is considered, the installation buckle 601 on the installation strip 6 can be arranged on the outer side plate 605, but after the actual use condition is fully considered, the installation buckle 601 is still arranged on the inner side plate 604, because when a user sits on the seat cushion 1, the seat cushion 1 is stressed by the center, the edge of the seat cushion 1 drives the installation strip 6 to generate an outward turning deformation trend, and the installation buckle 601 is easy to separate from the installation total frame 2.

As shown in fig. 8-11, along the thickness direction of the seat cushion 1, the seat cushion 1 is divided into an upper part 103 and a lower part 104, the lower part 104 is retracted inwards along the circumferential direction to form a shrinkage body, so that the shrinkage body can be better embedded into the accommodating groove 209, the seat cushion 1 forms a transition surface at the juncture of the lower part 104 and the upper part 103, and the first groove 101 is positioned on the transition surface; considering that the sliding possibility is still considered between the contact surface of the seat cushion 1 and the base 207 on the mounting frame 2 after the seat cushion 1 is inserted into the receiving groove 209, the flat grooves 102 arranged along the front-rear direction are also preset on the bottom surface of the lower portion 104 of the seat cushion 1, further, when the user sits on the seat cushion 1, the sliding times of the user relative to the seat cushion 1 are much larger than the sliding times of the user relative to the seat cushion 1, so the flat grooves 102 are all arranged along the left-right direction of the seat cushion 1, thereby limiting the front-rear sliding trend of the seat cushion 1 relative to the mounting frame 2 and ensuring the stability of the seat cushion 1.

Further, corresponding to the flat groove 102 on the seat cushion 1, on the upper surface of the base 207 of the mounting main frame 2, flat strips 205 which are arranged along the front-rear direction of the mounting main frame 2 and are integrally formed are preset, the shape and the size of the flat strips 205 are configured to be the same as those of the flat groove 102, and when the seat cushion 1 is combined with the mounting main frame 2, the flat strips 205 are clamped in the flat groove 102; the flat bar 205 also functions as a reinforcing rib while ensuring restriction of the forward and backward sliding tendency of the seat cushion 1 with respect to the mounting frame 2, increasing the structural strength of the base 207 on the mounting frame 2.

As shown in fig. 10, a through process opening 603 is preset on the inner side of the skeleton 606, and the process opening 603 is opposite to the mounting buckle 601 up and down, that is, the process opening 603 is above the mounting buckle 601, because the mounting strip 6 is a molded open module, so as to better mold the mounting buckle 601 and facilitate demolding, and therefore, a process opening 603 is provided above the mounting buckle 601 for demolding a part.

As shown in fig. 8, in order to ensure the stability of connection between the mounting main frame 2 and the mounting bar 6, the mounting buckle 601 is symmetrically arranged in the front-back and left-right directions of the mounting bar 6, and the mounting bayonet 304 is symmetrically arranged in the front-back and left-right directions of the mounting main frame 2, so that the mounting bayonet 304 more uniformly and stably limits the mounting buckle 601 from falling out of the mounting main frame 2.

As shown in fig. 12, the upper surface of the seat cushion 1 is further covered with a fabric 8, although the fabric 8 is in the prior art, in the present utility model, after the seat cushion frame body is assembled, the outer side edge of the fabric 8 is clamped between the annular edge 206 on the mounting main frame 2 and the inner wall of the outer side plate 605 on the mounting strip 6, that is, the fabric 8 is fixed without using gun nails, but friction force is generated by squeezing the fabric 8 between the annular edge 206 and the outer side plate 605, so as to limit the sliding trend of the fabric 8, and the fabric 8 covers the seat cushion 1 while fixing the fabric 8, so as to prevent the seat cushion 1 from being separated from the mounting strip 6 upwards.

The utility model and its embodiments have been described above by way of illustration and not limitation, and the utility model is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present utility model.

Claims (10)

1. A concealed adjustment telescoping mechanism for a seat, comprising: the device comprises a mounting main frame (2), a guide pipe (4) and an adjusting component (5) with a limiting function, wherein the guide pipe (4) is arranged inside the mounting main frame (2) and is fixed relative to the mounting main frame (2); the adjusting assembly (5) comprises a sliding tube (502) and a foot rest pillow (504) arranged at the front end of the sliding tube (502), the sliding tube (502) is inserted into the guide tube (4) and can slide relative to the guide tube (4), and an avoidance opening (203) for the sliding tube (502) to penetrate out is formed in the front end of the mounting main frame (2); the hidden type adjusting telescopic mechanism is provided with an extraction state and a retraction state; when the sliding tube (502) slides in a direction away from the guide tube (4), the foot rest pillow (504) is in an extracted state, and when the sliding tube (502) slides in a direction close to the guide tube (4) until completely hidden inside the guide tube (4), the foot rest pillow (504) is switched to a retracted state.

2. A hidden adjustment telescoping mechanism for a chair as claimed in claim 1, wherein: the adjusting assembly (5) further comprises a limit rivet (7), a limit mounting hole (503) is preset on the sliding tube (502), and the limit rivet (7) is mounted in the limit mounting hole (503); the guide pipe (4) is preset with a guide chute (401), and when the hidden adjusting telescopic mechanism is in an extraction state, the head of the limit rivet (7) is abutted with the front end of the guide chute (401) to limit the sliding trend of the sliding pipe (502).

3. A hidden adjustment telescoping mechanism for a chair as claimed in claim 2, wherein: the sliding range length of the sliding tube (502) is the same as the length of the guide chute (401) on the guide tube (4).

4. A hidden adjustment telescoping mechanism for a chair as claimed in claim 3, wherein: the sliding range length of the sliding tube (502) is 120-150mm.

5. A hidden adjustment telescoping mechanism for a chair as claimed in claim 1, wherein: when the foot rest (504) is switched to the retracted state, the adjusting assembly (5) is limited to slide by the mounting general frame (2).

6. A hidden adjustment telescoping mechanism for a chair as claimed in claim 5, wherein: the utility model discloses a foot rest pillow, including installation total frame (2), foot rest pillow (504) are connected on a drain pan (11), foot rest pillow (504) rotate connect in slip pipe (502) front end, there is a arch (501) on foot rest pillow (504) bottom surface, when this hidden regulation telescopic machanism is in the state of retrieving, foot rest pillow (504) backward overturn in the below of slip pipe (502), drain pan (11) front end and protruding (501) butt, restriction slip trend of slip pipe (502).

7. A hidden adjustment telescoping mechanism for a chair as claimed in claim 5, wherein: the installation main frame (2) and the bottom shell (11) are open modules.

8. A hidden adjustment telescoping mechanism for a chair as claimed in claim 1, wherein: the guide pipe is fixed relative to the installation main frame (2): a connecting plate (3) is arranged in the installation main frame (2), an integrally formed installation base (202) is preset in the installation main frame (2), and a first screw hole (201) is preset in the installation base (202); the guide pipe (4) is provided with a mounting bent plate (41), the mounting bent plate (41) is relatively fixed with the guide pipe (4), the mounting bent plate (41) is provided with a second screw hole (402), the connecting plate (3) is provided with a first through hole (301) and a second through hole (302), a threaded fastener penetrates through the first through hole (301) and the second through hole (302) and is screwed into the first screw hole (201) and the second screw hole (402) respectively, and the guide pipe (4) and the mounting main frame (2) are fixed together.

9. A hidden adjustment telescoping mechanism for a chair as claimed in claim 8, wherein: the connecting plate (3), the guide pipe (4) and the installation bent plate (41) are metal pieces, and the installation bent plate (41) is welded on the guide pipe (4).

10. A hidden adjustment telescoping mechanism for a chair as claimed in claim 8, wherein: the sliding tube (502) and the connecting plate (3), and the guide tubes (4) are all symmetrically arranged left and right.