CN214711611U - Sliding part built-in mounting structure - Google Patents

Abstract

The utility model discloses a built-in mounting structure of slider, including direction urceolus and the slip inner tube of slip assembly in this direction urceolus, still including advancing the nut, advance the nut with the direction urceolus keeps relatively fixed it is equipped with along its length direction and impels the screw rod in the slip inner tube, should impel the screw rod with slip inner tube axial fixity connects, should impel the screw rod with slip inner tube hoop rotates and connects, advance the nut the screw with it is corresponding to impel the screw rod, impel the screw rod with the screw thread fit who advances the nut. The sliding piece is arranged in the sliding inner tube, so that the exposure is reduced, the appearance is simplified and attractive, and meanwhile, the formed modularized scheme is convenient to assemble on the seat and is also convenient to combine with other functional structural members.

Description

Sliding part built-in mounting structure

Technical Field

The utility model relates to a slider, concretely relates to built-in slider.

Background

Office chairs are important office furniture. Along with the demand of office crowd to office chair travelling comfort constantly increases, office chair is constantly developing to multi-functional direction gradually. At the present stage, the multifunctional office chair mainly needs to meet the following requirements besides meeting the requirements of people for sitting:

1. the seat backrest can be inclined, and the inclined angle can be adjusted and fixed so as to meet different lying requirements of passengers, such as half lying or full lying;

2. the seat cushion of the seat can be turned over by a certain angle, so that the front part of the seat cushion is upward and the rear part of the seat cushion is downward, and the knees of a passenger are raised to different degrees;

3. when the passenger has a rest, the legs can be supported by the leg supports, so that the comfort is improved.

In order to meet the above requirements, engineers in related fields have partial research results, and can meet corresponding requirements independently. However, due to lack of overall planning, on one hand, the structure adopted by the prior art is not simplified enough, and on the other hand, after the functions are combined by adopting the prior art, the office chair has a complex and bloated structure, and the structures corresponding to the functions are seriously interfered with each other, so that the office chair has the defects of heavy weight, insufficient aesthetic property and the like. Therefore, it is necessary to plan the implementation of each requirement as a whole again to integrate the functions. During the integration process, various structural members and linkage relations need to be planned and designed again.

Specifically, the pushing device for moving the leg rest into and out of the seat needs to be optimally designed so that the leg rest can be rapidly and stably pushed out/recovered to the seat with a simple structure.

Disclosure of Invention

In order to simplify the structure of the leg support moving in and out of the seat, the utility model provides a built-in modularized sliding part which has the advantages of simple structure, reduced exposure and the like; the technical scheme is as follows:

the utility model provides a built-in mounting structure of slider which the key lies in: the outer tube guiding device comprises a guiding outer tube and a sliding inner tube which is assembled in the guiding outer tube in a sliding mode, and further comprises a rotating nut, wherein the rotating nut and the guiding outer tube are relatively fixed, a pushing screw rod is arranged in the sliding inner tube along the length direction of the sliding inner tube, the pushing screw rod is fixedly connected with the sliding inner tube in the axial direction, the pushing screw rod is connected with the sliding inner tube in an annular rotating mode, a screw hole of the rotating nut corresponds to the pushing screw rod, and the pushing screw rod is in threaded fit with the screw hole of the rotating nut.

The beneficial effect of this scheme of adoption: the sliding piece is arranged in the sliding inner tube, so that the exposure is reduced, the appearance is simplified and attractive, and the formed modularized scheme is convenient to assemble on the seat and is also convenient to combine with other functional structural parts.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view Z-Z' of FIG. 1;

FIG. 3 is a cross-sectional view of Y-Y' of FIG. 1;

FIG. 4 is an enlarged view of portion A of FIG. 2;

FIG. 5 is a schematic view of the engagement relationship between the pushing screw 22 and the screw rotary seat 23 and the pushing block 27;

FIG. 6 is an enlarged view of the portion B of FIG. 5;

fig. 7 is a schematic structural view of the friction reducing pad 103;

fig. 8 is a schematic view showing the installation relationship of the slider built-in mounting structure on the seat.

Detailed Description

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

As shown in fig. 1 to 8, a sliding part built-in mounting structure comprises a guide outer cylinder 101, a sliding inner tube 102 slidably fitted in the guide outer cylinder 101, and a rotating nut 24, wherein the guide outer cylinder 101 is fixed on a seat cushion body 1, the guide outer cylinder 101 is arranged along the front-rear direction on the seat cushion body 1, the front end of the sliding inner tube 102 extends out of the guide outer cylinder 101, a leg rest mounting seat is arranged at the front end of the sliding inner tube 102, and a leg rest 3 is hinged on the leg rest mounting seat;

a friction reducing pad 103 is arranged between the guide outer cylinder 101 and the sliding inner tube 102, the friction reducing pad 103 is in a long strip shape, the outer wall of the friction reducing pad 103 is abutted against the inner wall of the guide outer cylinder 101, the outer wall of the friction reducing pad 103 is provided with a positioning bump 103a, a friction reducing pad clamping hole penetrates through the cylinder wall of the guide outer cylinder 101, the friction reducing pad clamping hole corresponds to and is sleeved with the positioning bump 103a, the inner wall of the friction reducing pad 103 is provided with a plurality of friction reducing convex strips 103b, the friction reducing convex strips 103b are distributed along the length direction of the friction reducing pad 103, and the friction reducing convex strips 103b are abutted against the inner wall of the sliding inner tube 102; the guide outer cylinder 101 and the sliding inner tube 102 are rectangular tubes, the friction reducing pads 103 are in a C shape, the number of the friction reducing pads 103 is two, the two friction reducing pads 103 are arranged oppositely, and the edges of the two friction reducing pads 103 are spaced from each other.

A screw driving seat 21 fixed relative to the guiding outer cylinder 101 is arranged outside the guiding outer cylinder 101, a rotating nut 24 is fixed on the screw driving seat 21, the rotating nut 24 and the guiding outer cylinder 101 are also fixed relative to each other, a driving abdicating hole penetrates through the cylinder wall of the guiding outer cylinder 101, a strip-shaped sliding abdicating hole is arranged on the sliding inner tube 102 along the length direction thereof, the driving abdicating hole corresponds to and is communicated with the sliding abdicating hole, the screw driving seat 21 sequentially extends into the sliding inner tube 102 from the driving abdicating hole and the sliding abdicating hole, the rotating nut 24 is positioned inside the sliding inner tube 102, a propelling screw 22 is arranged in the sliding inner tube 102 along the length direction thereof, two ends of the propelling screw 22 are respectively and axially fixedly connected with the sliding inner tube 102, two ends of the propelling screw 22 are respectively and annularly and rotatably connected with the sliding inner tube 102, the screw hole of the screw-in nut 24 corresponds to the pushing screw 22, and the pushing screw 22 is in threaded fit with the screw hole of the screw-in nut 24.

The pusher screw 22 can be driven in rotation in the following manner: still be equipped with screw rod rotary mechanism on the screw rod drive seat 21, screw rod rotary mechanism includes screw rod swivel mount 23, screw rod swivel mount 23 passes through the bearing frame and installs on the screw rod drive seat 21, this screw rod swivel mount 23 is located inside the slip inner tube 102 still be equipped with power original 26 on the screw rod drive seat 21, power original 26 is the motor the solid cover has the worm wheel on the screw rod swivel mount 23, the motor output shaft with the transmission is connected between the worm wheel, drives when the motor output shaft is rotatory the worm wheel is rotatory, thereby drives screw rod swivel mount 23 is rotatory. Meanwhile, a screw through hole penetrates through the screw rotary seat 23, the propelling screw 22 penetrates through the screw through hole, the propelling screw 22 is in axial sliding fit with the screw rotary seat 23, and the propelling screw 22 and the screw rotary seat 23 are fixed annularly; as a specific embodiment, a sliding recessed portion is provided on the outer wall of the pushing screw 22 along the axial direction thereof, the sliding recessed portion cuts off the thread of the pushing screw 22, a sliding protruding portion is fixed on the wall of the screw through hole, and the sliding protruding portion corresponds to and matches with the sliding recessed portion; the sliding protruding part is in axial sliding fit with the sliding recessed part, and the sliding protruding part is axially and annularly fixed with the sliding recessed part.

Therefore, when the output shaft of the motor rotates, the propelling screw 22 is driven to rotate; while the pushing screw 22 rotates, due to the threaded fit with the rotating nut 24, the pushing screw 22 will extend back and forth along the rotating nut 24, thereby driving the sliding inner tube 102 to slide back and forth in the guiding outer cylinder 101, and the friction reducing convex strips 103b can reduce the sliding contact area and thus reduce the friction force. The leg rest 3 installed at the front end of the sliding inner tube 102 is driven to be extended and contracted forward and backward so that the leg rest is moved into/out of the seat.

The pushing screw 22 and other parts are arranged in the sliding inner tube 102, so that the appearance is simple and beautiful, and the modularized design is convenient for assembly and combination.

The leg rest 3 is turned over in the following way: a pushing block 27 is movably nested in the sliding inner tube 102, the pushing block 27 is positioned in front of the screw rod rotating seat 23 and the rotating nut 24, the pushing block 27 slides along the sliding inner tube 102, a turning connecting rod 29 is connected between the pushing block 27 and the leg support 3, the turning connecting rod 29 is positioned below a hinge point of the leg support 3 and the leg support mounting seat, and two ends of the turning connecting rod 29 are respectively hinged with the pushing block 27 and the leg support body 3. The leg rest 3 can be rotated by pushing and pulling the pushing block 27, so that the leg rest 3 is spread to be in a use state, or the leg rest 3 is erected to be in a standby state.

A more efficient push-pull of the pusher block 27 is: impel piece 27 including impel slider 271 and impel the arm 272, impel slider 271 activity to inlay and establish in the slip inner tube 102, impel slider 271 threaded sleeve to establish impel on the screw rod 22 it lets a mouthful still is equipped with the propulsion of bar along its length direction on the direction urceolus 101, should impel let a mouthful with the hole is corresponding and the switch-on of stepping down in the slip, impel the arm 272 slope to set up, impel the arm 272 upper end with impel the slider 271 fixed, impel the arm 272 lower part to follow in proper order slide and step down the hole and impel and step down the mouth and stretch out, impel the arm 272 lower extreme orientation the leg hold in the palm 3 and with upset connecting rod 29 is articulated. When the pushing screw 22 drives the sliding inner tube 102 to slide back and forth, the pushing block 27 moves back and forth, and the pushing screw 22 keeps rotating in the process, so that the pushing block 27 is driven to slide back and forth relative to the pushing screw 22, and the leg rest 3 is pushed to turn over. Therefore, when the leg support 3 is driven to move forwards out of the seat, the leg support 3 is turned and spread to be in a use state in one step; while the leg support 3 is driven to move backwards into the seat, the leg support 3 is turned and erected into a standby state in one step; the efficiency is improved and the time is saved by adopting a simple structure.

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 (10)

1. A built-in mounting structure of slider which characterized in that: the outer barrel guide device comprises a guide outer barrel (101), a sliding inner tube (102) which is assembled in the guide outer barrel (101) in a sliding mode, and a rotating nut (24), wherein the rotating nut (24) and the guide outer barrel (101) are kept relatively fixed, a propelling screw (22) is arranged in the sliding inner tube (102) along the length direction of the sliding inner tube, the propelling screw (22) is fixedly connected with the sliding inner tube (102) in the axial direction, the propelling screw (22) is connected with the sliding inner tube (102) in the circumferential direction in a rotating mode, a screw hole of the rotating nut (24) corresponds to the propelling screw (22), and the propelling screw (22) is in threaded fit with the screw hole of the rotating nut (24).

2. The slider built-in mounting structure according to claim 1, wherein: a screw driving seat (21) fixed relative to the guide outer cylinder (101) is arranged outside the guide outer cylinder, and the rotating nut (24) is fixed on the screw driving seat (21);

the screw driving seat (21) is also provided with a screw rotating mechanism which drives the propelling screw (22) to rotate.

3. The slider built-in mounting structure according to claim 2, wherein: the wall of direction urceolus (101) is gone through there is the drive hole of stepping down the section of thick bamboo, be equipped with the slip hole of stepping down of bar along its length direction on slip inner tube (102), the drive hole of stepping down with the corresponding switch-on of the hole of stepping down of sliding, screw drive seat (21) follow in proper order the drive hole of stepping down with the hole of stepping down of sliding stretches into inside slip inner tube (102), it is located to advance nut (24) inside slip inner tube (102), advance the both ends of screw rod (22) respectively with slip inner tube (102) axial fixity is connected, advance the both ends of screw rod (22) respectively with slip inner tube (102) hoop rotates and is connected.

4. The slider built-in mounting structure according to claim 3, wherein: screw rod rotary mechanism includes screw rod swivel mount (23), and this screw rod swivel mount (23) rotates the assembly and is in on screw rod drive seat (21), this screw rod swivel mount (23) are located inside slip inner tube (102) run through on screw rod swivel mount (23) have the screw rod to perforate, it wears to establish in this screw rod perforation to advance screw rod (22), advance screw rod (22) with screw rod swivel mount (23) axial sliding fit, advance screw rod (22) with screw rod swivel mount (23) hoop is fixed.

5. The slider built-in mounting structure according to claim 1, 2, 3 or 4, wherein: one end of the sliding inner pipe (102) extends out of the guide outer cylinder (101), a leg support mounting seat is arranged at the extending end of the sliding inner pipe (102), and a leg support (3) is arranged on the leg support mounting seat.

6. The slider built-in mounting structure according to claim 4, wherein: the outer wall of the propelling screw rod (22) is provided with a sliding concave part along the axial direction, the sliding concave part separates threads of the propelling screw rod (22), a sliding convex part is fixed on the hole wall of the screw rod through hole, and the sliding convex part corresponds to the sliding concave part and is matched with the sliding concave part;

the sliding protruding part is in axial sliding fit with the sliding recessed part, and the sliding protruding part is axially and annularly fixed with the sliding recessed part.

7. The slider built-in mounting structure according to claim 1, 2, 3, 4 or 6, wherein: be equipped with between direction urceolus (101) and the slip inner tube (102) and reduce friction pad (103), the outer wall of reduce friction pad (103) with the inner wall of direction urceolus (101) supports tightly the outer wall of reduce friction pad (103) is equipped with location lug (103 a) the section of thick bamboo wall of direction urceolus (101) has run through antifriction pad screens hole, this antifriction pad screens hole with location lug (103 a) correspond and wear the cover each other the inner wall of reduce friction pad (103) is equipped with a plurality of antifriction sand grips (103 b), this antifriction sand grip (103 b) with the inner wall of slip inner tube (102) supports and leans on.

8. The slider built-in mounting structure according to claim 7, wherein: the guide outer cylinder (101) and the sliding inner tube (102) are rectangular tubes, the friction reducing pads (103) are C-shaped, the number of the friction reducing pads (103) is two, the two friction reducing pads (103) are arranged right opposite to each other, and the edges of the two friction reducing pads (103) are spaced from each other.

9. The slider built-in mounting structure according to claim 4 or 6, wherein: screw rod swivel mount (23) are installed through the bearing frame on screw rod drive seat (21) still be equipped with power original piece (26) on screw rod drive seat (21), power original piece (26) with screw rod swivel mount (23) transmission is connected.

10. The slider built-in mounting structure according to claim 9, wherein: the power element (26) is a motor, a worm wheel is fixedly sleeved on the screw rod rotating seat (23), and an output shaft of the motor is in transmission connection with the worm wheel.

Images