CN220157922U

CN220157922U - Folding chair

Info

Publication number: CN220157922U
Application number: CN202321329482.6U
Authority: CN
Inventors: 陈德隆
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2023-12-12
Anticipated expiration: 2033-05-29

Abstract

A folding chair comprises two side frame units, two transverse connecting units and two armrest units. Each side frame unit comprises a front foot rod group, a rear foot rod group and a side connecting rod group arranged between the front foot rod group and the rear foot rod group. Each front foot rod group is provided with a front fixed pipe and a movable sleeve sleeved on the front fixed pipe. The armrest unit can be driven to pivot upwards, and the front end of the armrest unit drives the movable sleeve to slide upwards, so that the front foot rod group and the side connecting rod group are driven to retract relative to the rear foot rod group, and the side frame unit is converted from an unfolding state to a retracting state. Therefore, when the user folds the folding chair, the side frame units can be changed from the unfolded state to the folded state by driving the armrest units to pivot upwards, and the operation is very convenient.

Description

Folding chair

Technical Field

The utility model relates to a foldable or detachable chair, in particular to a folding chair.

Background

The utility model provides a folding chair that taiwan certificate number M261121 novel patent announced, the rear end of two armrests pin joint respectively in two slides, just the slide cover is located two body of rod. When the folding chair is unfolded, the two claw-shaped lugs of the sliding seat are respectively embedded into the two lugs in the rod body, and cannot slide up and down relative to the rod body, so that the armrests are also positioned and cannot be operated to pivot and swing relative to the sliding seat respectively.

When a user wants to fold the folding chair, the two lugs are pressed to drive the claw-shaped lugs to separate from the lugs respectively, the armrests are driven to pivot upwards relative to the sliding seat respectively, the sliding seat is driven to slide downwards along the rod body respectively, and the rod body is driven to move back and forth in opposite directions to draw close, so that the folding volume is reduced.

However, when the folding chair is to be folded, the claw-shaped protruding blocks are separated from the protruding lugs by pressing the protruding blocks, so that the armrests can be driven to pivot, and the operation is inconvenient.

Disclosure of Invention

The object of the present utility model is to provide a folding chair which at least overcomes the drawbacks of the background art.

The folding chair comprises two side frame units, two transverse connecting units and two armrest units.

The side frame units are arranged at left and right intervals. Each side frame unit can be changed between an unfolding state and a folding state, and comprises a front foot rod group and a rear foot rod group which are spaced front and back and extend up and down, and a side connecting rod group which can be unfolded and folded and pivoted between the front foot rod group and the rear foot rod group. Each front foot rod group is provided with a front fixed pipe extending up and down and a movable sleeve sleeved at the top end part of the front fixed pipe in a vertically movable way. Each side connecting rod group is arranged between the corresponding front foot rod group and the corresponding rear foot rod group at left and right intervals.

The transverse connection units are pivoted between the side frame units at intervals front and back. The armrest units are respectively arranged on the side frame units. The front end of each armrest unit is pivoted with the movable sleeve of the corresponding side frame unit, and the rear end of each armrest unit is pivoted with the corresponding rear foot rod group. The handrail unit can be driven to pivot upwards relative to the rear foot rod group, and the front end of the handrail unit drives the movable sleeve to slide upwards relative to the front fixed pipe respectively, so that the front foot rod group and the side connecting rod group are driven to retract relative to the rear foot rod group, and the side frame unit is converted from the unfolding state to the folding state.

Each armrest unit comprises an armrest body extending forwards and backwards, a pivot joint arranged at the front end of the armrest body and a pivot sleeve pivoted at the rear end of the armrest body, each pivot joint is pivoted with the corresponding movable sleeve, and each pivot sleeve is sleeved on the corresponding rear foot rod group in a vertically sliding manner.

Each front foot rod group is also provided with a transfer tube which can be vertically and telescopically transferred and positioned and is inserted in the front fixed tube upwards, and each rear foot rod group is provided with a rear fixed tube which extends upwards and downwards and is used for being pivoted at the rear end of the corresponding armrest unit and a transfer tube which can be vertically and telescopically transferred and is inserted in the rear fixed tube upwards.

The folding chair of the utility model is characterized in that each adjusting and moving pipe is provided with a pipe body and a snap fastener arranged in the pipe body, each pipe body is provided with a perforation which is arranged along the radial direction, each snap fastener is provided with a spring piece which is positioned in the corresponding pipe body, a button which is arranged on the spring piece and protrudes out of the corresponding perforation, and each front fixing pipe and each rear fixing pipe are respectively provided with at least one positioning hole which penetrates through the inner peripheral surface and the outer peripheral surface along the radial direction and can be used for embedding and clamping the corresponding button of the adjusting and moving pipe.

Each side connecting rod group is provided with two side connecting rods which extend in an up-down inclined mode and are in front-back crossed pin joint, and each side connecting rod is connected between the corresponding movable sleeve and the lower side of the rear foot rod group or between the corresponding front fixed pipe and the upper side of the rear foot rod group.

The folding chair of the utility model is characterized in that each front foot rod group is also provided with a first pivot seat sleeved on the movable sleeve and a second pivot seat sleeved on the front fixed pipe, each rear foot rod group is also provided with a rear pivot sleeve and a rear pivot seat, the rear pivot sleeve is sleeved on the top end part of the rear foot rod group in a sliding way up and down, the rear pivot seat is sleeved on the bottom end part of the rear foot rod group, and the side connecting rods of each side connecting rod group are respectively pivoted between the corresponding first pivot seat and the rear pivot seat and between the second pivot seat and the rear pivot sleeve on the same side.

According to the folding chair disclosed by the utility model, the transverse connection units can be changed between the unfolding state and the folding state, the transverse connection units are respectively arranged between the front foot rod groups and the rear foot rod groups, each transverse connection unit comprises two transverse connection rods which extend in an up-down inclined mode and are in transverse pin joint, each transverse connection rod arranged between the front foot rod groups is pivoted between the corresponding first pivot seat and the corresponding second pivot seat, each transverse connection rod arranged between the rear foot rod groups is pivoted between the corresponding rear pivot sleeve and the corresponding rear pivot seat, the front foot rod groups and the rear foot rod groups of the side frame units can be driven in a left-right opposite mode, the transverse connection units are compressed to be folded in the left-right opposite mode, and the transverse connection units are changed from the unfolding state to the folding state.

The folding chair of the utility model, each armrest unit further comprises a decorative plate arranged on the upper side of the armrest body.

The folding chair of the utility model further comprises a sleeve cushion unit which is arranged on the side frame unit and defines a space for a user to sit.

The utility model has the beneficial effects that: through the arrangement of the side frame units and the armrest units, when the folding chair is folded, the armrest units can be directly driven to pivot upwards, so that the side frame units are changed from the unfolded state to the folded state, and the operation is very convenient.

Drawings

Other features and advantages of the utility model will be apparent from the following description of the embodiments with reference to the accompanying drawings, in which:

FIG. 1 is a perspective view of one embodiment of a folding chair of the present utility model;

FIG. 2 is a side view of the embodiment in an expanded state;

FIG. 3 is a side view of the embodiment in a collapsed state;

FIG. 4 is a fragmentary side elevation section view of the embodiment in the deployed state; a kind of electronic device with high-pressure air-conditioning system

FIG. 5 is a side cross-sectional view similar to FIG. 4, illustrating the telescoping of two shift tubes up and down relative to a front fixed tube and a rear fixed tube, respectively.

Detailed Description

Referring to fig. 1 and 2, an embodiment of the folding chair of the present utility model includes two side frame units 1, two cross connecting units 5, two armrest units 6, and a pad unit 7.

The side frame units 1 are arranged at left and right intervals and can be changed between an unfolding state and a folding state. Each side frame unit 1 comprises a front foot bar set 2 and a rear foot bar set 3 which are spaced back and forth and extend up and down, and a side connecting rod set 4 which can be unfolded and folded and pivoted between the front foot bar set 2 and the rear foot bar set 3.

Referring to fig. 1, 2 and 4, each of the front leg assemblies 2 includes a front fixing tube 21 extending vertically, a moving sleeve 22 movably sleeved on a top end portion of the front fixing tube 21, a first pivot seat 23 sleeved on the moving sleeve 22, a second pivot seat 24 sleeved on the front fixing tube 21, a moving tube 25 telescopically and movably positioned vertically and upwardly inserted in the front fixing tube 21, and a foot cover 26 sleeved on a bottom end portion of the moving tube 25 and upwardly abutting against the second pivot seat 24.

The transfer tubes 25 of the front foot bar assembly 2 each have a tube body 251 and a snap button 252 provided in the tube body 251. Each of the tube bodies 251 is provided with a radially open bore 202. Each snap 252 has a spring 253 located in the corresponding tube body 251, and a button 254 disposed on the spring 253 and protruding from the corresponding through hole 202. Each front fixing tube 21 is provided with a positioning hole 201 penetrating through the inner and outer peripheral surfaces in the radial direction, and being capable of being inserted and positioned by a button 254 of the corresponding adjusting tube 25.

Each rear foot bar group 3 is provided with a rear fixing tube 31 extending vertically, a rear pivot sleeve 32 sleeved at the top end part of the rear fixing tube 31 in a vertically sliding manner, a rear pivot seat 33 sleeved at the bottom end part of the rear fixing tube 31, a limit sleeve 34 sleeved at the rear fixing tube 31 and propped against the upper side of the rear pivot seat 33, a moving tube 35 capable of being vertically telescopically moved and upwardly inserted into the rear fixing tube 31, and a foot sleeve 36 sleeved at the bottom end part of the moving tube 35 and propped against the rear pivot seat 33.

The transfer pipes 35 of the rear foot bar assembly 3 each have a pipe body 351 and a snap 352 provided in the pipe body 351. Each of the tube bodies 351 is provided with a radially open bore 302. Each snap 352 has a spring 353 in the corresponding tube body 351, and a button 354 disposed on the spring 353 and protruding from the corresponding through hole 302. Each rear fixing tube 31 is provided with a positioning hole 301 penetrating through the inner and outer peripheral surfaces in the radial direction, and being capable of being inserted and positioned by a button 354 of the corresponding adjusting tube 35.

Each of the side link groups 4 is disposed between the front foot bar group 2 and the rear foot bar group 3 at a left-right interval, and has two side links 42 extending obliquely up and down and being cross-pivoted back and forth through a pivot 41. The side links 42 of each side link set 4 are respectively pivoted between the corresponding first pivot seat 23 and the rear pivot seat 33, and between the second pivot seat 24 and the rear pivot sleeve 32 on the same side.

The transverse connection units 5 are respectively arranged between the front foot bar groups 2 and the rear foot bar groups 3 at intervals in the front-rear direction and can be changed between an unfolding state and a folding state. Each of the cross members 5 includes two cross links 52 extending obliquely upward and downward and being pivoted laterally and crosswise by a pivot shaft 51. Each of the transverse links 52 disposed between the front leg bar assemblies 2 is pivotally connected between the corresponding first pivot seat 23 and the corresponding second pivot seat 24. Each of the transverse links 52 disposed between the rear leg link groups 3 is pivotally connected between the corresponding rear pivot sleeve 32 and the rear pivot seat 33.

The armrest units 6 are respectively provided to the side frame units 1. Each armrest unit 6 includes an armrest body 61 extending back and forth, a pivot joint 62 disposed at the front end of the armrest body 61, a pivot sleeve 63 pivoted at the rear end of the armrest body 61, and a decorative plate 64 disposed on the upper side of the armrest body 61. Each pivot joint 62 is pivoted to the corresponding moving sleeve 22, and each pivot sleeve 63 is slidably sleeved on the corresponding rear fixing tube 31 of the rear foot rod set 3.

The pad unit 7 is disposed on the side frame unit 1, and includes a backrest portion 71 disposed on a distal end portion of the rear fixing tube 31 of the rear leg link group 3, a seating portion 72 connected between the front fixing tube 21 of the front leg link group 2 and the rear fixing tube 31 of the rear leg link group 2, and a connection portion 73 connected between the backrest portion 71 and the seating portion 72.

When the folding chair is unfolded, the side frame unit 1 is in the unfolded state, and the side link group 4 is unfolded, so that the front foot bar group 2 and the rear foot bar group 3 are unfolded back and forth. The cross connection unit 5 is in the unfolded state, and thus the side frame unit 1 is unfolded left and right. The pivot sleeve 63 of each armrest unit 6 is abutted downward against the corresponding limit sleeve 34, so that the corresponding armrest unit 6 can be limited from pivoting downward relative to the rear foot bar set 3. The backrest 71, the seat 72 and the connecting portion 73 together define a space 70 for a user to sit.

When the user wants to fold the folding chair, the armrest unit 6 is driven upwards to pivot upwards relative to the rear foot rod group 3, and the front end of the armrest unit drives the movable sleeve 22 to slide upwards relative to the front fixed pipe 21 respectively, so as to drive the front foot rod group 2 and the side connecting rod group 4 to fold relative to the rear foot rod group 3, and the side frame unit 1 is converted from the unfolded state to the folded state. Then, the front leg bar group 2 and the rear leg bar group 3 of the side frame unit 1 are driven to be left and right in opposite directions, and the transverse connection unit 5 is compressed to be folded to be left and right in opposite directions, so that the transverse connection unit 5 is converted from the unfolded state to the folded state, and the folding chair can be folded to a minimum volume as shown in fig. 3.

Referring to fig. 4 and 5, when the user needs to increase the height of the folding chair, each of the adjustment tubes 25, 35 is pulled downward relative to the corresponding front fixing tube 21 or rear fixing tube 31 until the button 254, 354 of each of the adjustment tubes 25, 35 moves to the corresponding positioning hole 201 of the front fixing tube 21 or the positioning hole 301 of the rear fixing tube 31. At this time, the elastic piece 253, 353 of each elastic buckle 252, 352 pushes the button 254, 354 radially outwards by elastic restoring force, and the snap-lock is positioned in the corresponding positioning hole 201, 301. Therefore, the length of each of the transferring pipes 25, 35 exposed to the corresponding front fixing pipe 21 or rear fixing pipe 31 is increased, so that the overall height of the folding chair can be increased.

It is to be noted that the number of the positioning holes 201 of each of the front fixing pipes 21 or the positioning holes 301 of each of the rear fixing pipes 31 is not limited to one, and may be two or more according to actual needs.

In summary, according to the folding chair of the present utility model, the side frame units 1 and the armrest units 6 are disposed, when the folding chair is folded, the armrest units 6 can be directly driven to pivot upwards, so as to drive the front leg bar set 2 and the side link set 4 to fold relative to the rear leg bar set 3, and the side frame units 1 are transformed from the unfolded state to the folded state, which is convenient in operation. The folding chair can be folded to a minimum volume by further driving and compressing the transverse connection units 5 to fold in opposite directions from the unfolded state to the folded state, and the height of the whole folding chair can be increased by the transfer pipes 25 and 35, so that the utility model can be truly achieved.

The foregoing is merely illustrative of the present utility model and is not intended to limit the scope of the utility model, which is defined by the appended claims and their equivalents.

Claims

1. A folding chair, comprising:

the side frame units are arranged at intervals left and right, each side frame unit can be changed between an unfolding state and a folding state, each side frame unit comprises a front foot rod group and a rear foot rod group which are arranged at intervals back and forth and extend up and down, and a side connecting rod group which can be unfolded and folded and pivoted between the front foot rod group and the rear foot rod group, each front foot rod group is provided with a front fixing pipe which extends up and down, and a movable sleeve which is sleeved at the top end part of the front fixing pipe in a vertically movable manner, and each side connecting rod group is arranged between the corresponding front foot rod group and the corresponding rear foot rod group at intervals left and right;

the two transverse connection units are pivoted between the side frame units at intervals front and back; a kind of electronic device with high-pressure air-conditioning system

The two handrail units are respectively arranged on the side frame units, the front end of each handrail unit is pivoted with the corresponding movable sleeve of the side frame unit, the rear end of each handrail unit is pivoted with the corresponding rear foot rod group, the handrail units can be driven to pivot upwards relative to the rear foot rod group, the front ends of the handrail units drive the movable sleeve to slide upwards relative to the front fixed pipe respectively, the front foot rod group and the side connecting rod group are driven to retract relative to the rear foot rod group, and the side frame units are converted from the unfolding state to the folding state.

2. The folding chair of claim 1 wherein: each handrail unit comprises a handrail body extending forwards and backwards, a pin joint head arranged at the front end of the handrail body and a pin joint sleeve pivoted at the rear end of the handrail body, wherein each pin joint head is pivoted with the corresponding movable sleeve, and each pin joint sleeve can be sleeved on the corresponding rear foot rod group in a vertically sliding manner.

3. The folding chair of claim 1 wherein: each front foot rod group is also provided with a transfer pipe which can be inserted in the front fixed pipe upwards in a vertically telescopic transfer positioning way, each rear foot rod group is provided with a rear fixed pipe which extends upwards and downwards and is used for being pivoted at the rear end of the corresponding armrest unit, and a transfer pipe which can be inserted in the rear fixed pipe upwards in a vertically telescopic transfer way.

4. A folding chair as claimed in claim 3, characterized in that: each transfer pipe has a pipe body and set up in the bullet knot in the pipe body, each pipe body is equipped with along radial perforation of seting up, each bullet knot has be located corresponding in the pipe body the shell fragment with set up in the shell fragment and outstanding corresponding the button of perforation, each preceding fixed pipe and each the back fixed pipe are equipped with at least one radially run through inner and outer peripheral face respectively, and can supply corresponding transfer the button embedding card location's of pipe locating hole.

5. The folding chair of claim 1 wherein: each side connecting rod group is provided with two side connecting rods which extend in an up-down inclined mode and are in front-back crossed pin joint, and each side connecting rod is connected between the corresponding movable sleeve and the lower side of the rear foot rod group or between the corresponding front fixed pipe and the upper side of the rear foot rod group.

6. The folding chair of claim 5 wherein: each front foot rod group is also provided with a first pivot seat sleeved on the movable sleeve and a second pivot seat sleeved on the front fixed pipe, each rear foot rod group is also provided with a rear pivot sleeve and a rear pivot seat, the rear pivot sleeve can be sleeved on the top end part of the rear foot rod group in a sliding way up and down, the rear pivot seat is sleeved on the bottom end part of the rear foot rod group, and the side connecting rods of each side connecting rod group are respectively pivoted between the corresponding first pivot seat and the rear pivot seat and between the second pivot seat and the rear pivot sleeve on the same side.

7. The folding chair of claim 6 wherein: the transverse connection units can be changed between an unfolding state and a folding state, the transverse connection units are respectively arranged between the front foot rod groups and the rear foot rod groups, each transverse connection unit comprises two transverse connection rods which extend in an up-down inclined mode and are in transverse pin joint, each transverse connection rod arranged between the front foot rod groups is pivoted between the corresponding first pivot seat and second pivot seat, each transverse connection rod arranged between the rear foot rod groups is pivoted between the corresponding rear pivot sleeve and the corresponding rear pivot seat, the front foot rod groups and the rear foot rod groups of the side frame units can be driven in a left-right opposite mode, the transverse connection units are compressed to be folded in the left-right opposite mode, and the transverse connection units are changed from the unfolding state to the folding state.

8. The folding chair of claim 2 wherein: each armrest unit further comprises a decorative plate arranged on the upper side of the armrest body.

9. The folding chair of claim 1 wherein: the seat cushion also comprises a seat cushion unit which is arranged on the side frame unit and defines a space for a user to sit.