CN216393545U

CN216393545U - Multifunctional push-pull chair

Info

Publication number: CN216393545U
Application number: CN202021711398.7U
Authority: CN
Inventors: 刘纪良
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2022-04-29
Anticipated expiration: 2030-08-17

Abstract

A multifunctional push-pull seat comprises a rectangular frame, push-and-pull support and movable support, rectangular frame is made by four first party steel pipes end to end welding, push-and-pull support includes two second square steel pipes and a U type square steel pipe, two first enhancement steel pipes of fixedly connected with between two second square steel pipes, the lower extreme of two second square steel pipes all has been pegged graft and has been had a third party steel pipe, the left and right sides pipe of U type square steel pipe corresponds the upper end of pegging graft at two second square steel pipes respectively, movable support includes two fourth steel pipes, the lower extreme of two fourth steel pipes all has been pegged graft and has a fifth steel pipe, the gyro wheel is all installed in the rotation of the lower extreme of third party steel pipe and fifth square steel pipe, fixed connection can be dismantled respectively on two second square steel pipes to the left and right sides portion rear side of the first party steel pipe of rear side, the upper end of two fourth steel pipes articulates the preceding lateral part at the left and right sides first party steel pipe respectively. The multifunctional trolley disclosed by the utility model has multiple functions, integrates a seat, a hand cart, a shopping cart and a trolley, and is reasonable in structure.

Description

Multifunctional push-pull chair

Technical Field

The utility model relates to the field of daily life appliances, in particular to a multifunctional push-pull seat.

Background

Old person (60-75 years old, the health condition can also be self-care) generally take the stool, campstool or little chair going out, conveniently sit down the rest at any time, nevertheless sit for a long time, the health also can be uncomfortable, just need stand up and walk away, the activity health, old person's walking is inconvenient, still need to take the stool, campstool or little chair, it is tired more, and present old person can go to purchase some articles for daily use or vegetables etc. sometimes, it is also inconvenient to carry, traditional seat function is more single, can not satisfy people's daily life multi-functional needs.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a multifunctional push-pull seat which has multiple functions, integrates a seat, a hand cart, a shopping cart and a pull cart into a whole, has a reasonable structure and can reduce the occupied space.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a multifunctional push-pull seat comprises a rectangular frame, a push-pull support and a movable support, wherein the rectangular frame is formed by welding four first square steel pipes end to end, the push-pull support comprises two second square steel pipes and a U-shaped square steel pipe, the two second square steel pipes are arranged side by side in the left-right direction and are vertically arranged, two first reinforcing steel pipes which are arranged side by side in the up-down direction are fixedly connected between the two second square steel pipes, the lower ends of the two second square steel pipes are respectively inserted with a third square steel pipe, the front side, the rear side and the lower side of the U-shaped square steel pipe are respectively opened, the left side pipe and the right side pipe of the U-shaped square steel pipe are respectively inserted at the upper ends of the two second square steel pipes correspondingly, the movable support comprises two vertically arranged fourth steel pipes, a second reinforcing steel pipe is fixedly connected between the two fourth steel pipes, a fifth square steel pipe is inserted at the lower ends of the two fourth steel pipes, and rollers are respectively rotatably installed at the lower ends of the third steel pipe and the fifth steel pipe, the left and right sides of the first square steel pipe at the rear side are respectively detachably and fixedly connected to the two second square steel pipes, the upper ends of the two fourth steel pipes are respectively hinged to the front side portions of the left and right first square steel pipes, the two fourth steel pipes are respectively connected with the left and right first square steel pipes through locking mechanisms, and a cushion is fixedly arranged between the front and rear first square steel pipes.

The upper end integrated into one piece of two fourth party steel pipes has the upside, the equal open first U template in front side and rear side, the left and right sides board of the first U template in left side and the left and right sides board of the first U template in right side articulate the preceding lateral part at the first party steel pipe in the left and right sides through a round pin axle respectively, all set up on the first party steel pipe in the left and right sides and correspond penetrating and be located the first spacing hole of corresponding round pin axle rear side, all be equipped with on the left and right sides board of the first U template in left side and the left and right sides board of the first U template in right side and correspond penetrating and with first spacing hole matching corresponding first spliced eye.

Left locking mechanism includes fastening bolt and first butterfly nut, a vertical stand of front end lower part fixedly connected with of left side first party steel pipe, the first otic placode of one side fixedly connected with of vertical stand, the second otic placode that corresponds around the last side fixedly connected with of left side fourth party steel pipe and the vertical otic placode, fastening bolt passes first otic placode and second otic placode in proper order along the fore-and-aft horizontal direction, fastening bolt's front end head sticiss at the leading flank of first otic placode, fastening bolt's rear end root is located the rear side of second otic placode, first butterfly nut spiro union is at fastening bolt's rear end root and compresses tightly the trailing flank at the second otic placode.

First spring catch is all installed to the last lateral part of last lateral part, the left and right sides pipe lower lateral part of U type square steel pipe of third party steel pipe and the last lateral part of fifth square steel pipe, all offers on last lateral part and the lower lateral part of second square steel pipe and the fourth steel pipe to match the spacing hole of a plurality of second that corresponds the joint with first spring catch.

The left and right sides portion rear side of the first side steel pipe of rear side integrated into one piece respectively has the equal open second U template of upside, downside and rear side, all opens the second spliced eye that two intervals set up from top to bottom on the board of the left and right sides of second U template, the middle part and the lower part of second side steel pipe all seted up about two penetrating and with two second spliced eyes match about the spacing hole of the third that corresponds, the U type screw rod and the second side steel pipe fixed connection of two second spliced eyes and two spacing holes of third are passed respectively through one to the second U template, the equal threaded connection in both ends of U type screw rod has a second butterfly nut that compresses tightly on the second side steel pipe, set up on the third side steel pipe with the spacing hole of a certain third of second side steel pipe lower part about and corresponding and penetrating fourth spacing hole.

A plurality of double-layer tightening belts positioned at the upper parts of the first square steel tubes are laid between the front and the rear square steel tubes in parallel from left to right, a first long splint is arranged under the front square steel tube and fixedly connected with the lower side surface of the front square steel tube through a plurality of first locking screws, the front side part of each double-layer tightening belt is wound on the front square steel tube and positioned between the front square steel tube and the first long splint, the first long splint clamps the front side edge of each double-layer tightening belt, a second long splint is arranged under the rear square steel tube and fixedly connected with the lower side surface of the rear square steel tube through a plurality of second locking screws, the rear side part of each double-layer tightening belt is wound on the rear square steel tube and positioned between the rear square steel tube and the second long splint, and the second long splint clamps the rear side edge of each double-layer tightening belt, the cushion is clamped in the middle of each double-layer tightening belt.

Fixedly connected with a third between the left and right sides pipe upper portion of U type square steel pipe strengthens the steel pipe, and the third is strengthened the steel pipe and is all pegged graft and have a handrail steel pipe in both ends mouth about, all is provided with a second spring catch on the every handrail steel pipe, and bilateral symmetry has seted up a plurality of and has controlled two second spring catches and match the fifth spacing hole that corresponds the joint on the steel pipe is strengthened to the third.

The U-shaped square steel tube is sleeved with a storage bag, a rectangular backpack positioned on the front side of the U-shaped square steel tube is arranged on the storage bag, a zipper is arranged on the upper edge of the rectangular backpack, and a backrest cushion block is arranged in the rectangular backpack.

Handle of fixedly connected with on the first enhancement steel pipe of upside, the first enhancement steel pipe of downside and second strengthen the steel pipe with the height and correspond around, the first enhancement steel pipe of downside and second are strengthened and are provided with two and control firm pipes side by side between the steel pipe, a rectangular screw rod is installed to every firm equal concentric mounting of pipe, rectangular screw rod passes the second in proper order along the fore-and-aft direction and strengthens the steel pipe, the first enhancement steel pipe of firm pipe and downside, the front end screw head of rectangular screw rod compresses tightly the front side at the second enhancement steel pipe, the rear portion threaded connection of rectangular screw rod has a third butterfly nut, the third butterfly nut compresses tightly the rear side at the first enhancement steel pipe of downside.

The lower extreme of left side third party steel pipe is bent towards the left side, the lower extreme of right side third party steel pipe is bent towards the right side, the upside rear side of U type square steel pipe is provided with a link plate, the right side portion of link plate rotates the upside trailing flank middle part of connecting at U type square steel pipe, the hanging hole has been seted up to the left side portion of link plate, the inside magnet that is provided with of upside of U type square steel pipe, the upside trailing flank of U type square steel pipe is provided with the horizontal blend stop that is located the link plate downside, when the link plate rotates to the level to the left, the upside contact of the lower limb middle part of link plate or left side portion and horizontal blend stop, the left side position of link plate is in the rear side of magnet and adsorbs with magnet.

Compared with the prior art, the multifunctional chair has substantive characteristics and progress, and particularly has multiple use functions, namely a chair under normal conditions, at the moment, the fifth square steel pipe is completely inserted into the fourth steel pipe, the roller at the lower end of the fifth square steel pipe is positioned at the bottom in the fourth steel pipe, the bottom of the fourth steel pipe and the bottom of the roller at the lower end of the third steel pipe are flush and are in contact with the ground, and the old people sit on the seat cushion and can lean against the rectangular backpack provided with the backrest cushion block, so that the multifunctional chair is comfortable; when the old people want to walk, the first spring pin on the fifth steel pipe is pressed, the fifth steel pipe is pulled out from the fourth steel pipe by a certain length, the roller at the lower end of the fifth steel pipe extends out of the fourth steel pipe, similarly, the first spring pin on the third steel pipe is pressed, the third steel pipe is pulled out from the second steel pipe by a certain length, the roller at the lower end of the third steel pipe and the roller at the lower end of the fifth steel pipe are flush and are in contact with the ground, then the second spring pin on the armrest steel pipe is pressed, the two armrest steel pipes are respectively pulled out by a certain length from the left end port and the right end port of the third reinforced steel pipe, so that the chair is transformed into an armrest trolley, the old people can push the chair to walk by respectively holding the two armrest steel pipes with both hands, and the walking is convenient; if after shopping, articles can be put in the storage bag, the hanging plate is rotated to be vertical, the hanging plate can be hung or tied on the rear side of the bicycle by a hook or a rope penetrating through a hanging hole on the hanging plate, at the moment, the seat is inclined backwards, two rollers on the rear side are contacted with the ground, two rollers on the front side are separated from the ground, and people can pull the seat to move when riding the bicycle; when a large number of large objects need to be carried, the storage bag is taken down, the second butterfly nut is screwed down, the U-shaped screw rod is disassembled, the second U-shaped plate and the second square steel pipe are disassembled, then the fifth square steel pipe is completely inserted into the fourth square steel pipe, the insertion depth of the third square steel pipe in the second square steel pipe is adjusted, a fourth limiting hole in the third square steel pipe is enabled to correspond to a certain third limiting hole in the lower portion of the second square steel pipe in the left-right direction, the second U-shaped plate is moved downwards to a second inserting hole in the upper side of the second U-shaped plate to correspond to the fourth limiting hole in the left-right direction, an upper side rod of the U-shaped screw rod penetrates through a second inserting hole in the upper side of the second U-shaped plate, the fourth limiting hole and a third limiting hole in the lower portion of the second square steel pipe, the second butterfly nut is installed on an upper side rod of the U-shaped screw rod and screwed down, the fastening bolt and the first butterfly nut are disassembled, the two fourth square steel pipes are rotated backwards and folded to be horizontal, the first inserting hole is corresponding to the first limiting hole left and right, and the fastening bolt passes through the first inserting hole and the first limiting hole, so that two fourth steel pipes are respectively fixedly connected with the first square steel pipes on the left and right sides, thus the chair is transformed into a pull cart, moreover, the rear ends of the first square steel pipes on the left and right sides can be upwards rotated and folded through the second U-shaped plate, the occupied space is reduced when the chair is not used, and the length of the U-shaped square steel pipes inserted into the second square steel pipes can be properly adjusted according to the size of a carried object (the first spring pins on the lower side parts of the left and right sides of the U-shaped square steel pipes are also pressed, the principle of the structure is the same as that of a pull rod structure of an umbrella, the first inserting rod structure is a conventional technology, and the chair can be implemented without creative labor by technicians in the field, and is not repeated, thereby the height of the cushion distance between the top parts of the U-shaped square steel pipes is adjusted, so that larger or longer articles can be put down and the use is convenient.

In conclusion, the multifunctional trolley has various functions, integrates a seat, a hand trolley, a shopping cart and a trolley, has a reasonable structure, and can reduce the occupied space.

Drawings

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

Fig. 2 is a right side view of the present invention.

Fig. 3 is a rear view of the present invention.

Fig. 4 is a schematic structural view of the hand cart modified by the present invention.

Fig. 5 is a schematic structural view of the modified pull cart of the present invention.

Fig. 6 is a partially enlarged view of a portion a in fig. 3.

Fig. 7 is a bottom view of the rectangular frame of the present invention.

Detailed Description

The embodiments of the present invention are further described below with reference to the drawings.

As shown in fig. 1-7, the multifunctional push-pull seat comprises a rectangular frame, a push-pull support and a movable support, wherein the rectangular frame is formed by welding four first square steel pipes 1 end to end, the push-pull support comprises two second square steel pipes 2 and a U-shaped square steel pipe 3, the two second square steel pipes 2 are arranged side by side and vertically, two first reinforced steel pipes 4 arranged side by side up and down are fixedly connected between the two second square steel pipes 2, a third square steel pipe 5 is inserted at the lower end of each of the two second square steel pipes 2, the front side, the rear side and the lower side of each of the U-shaped square steel pipes 3 are open, the left side pipe and the right side pipe of each of the U-shaped square steel pipes 3 are correspondingly inserted at the upper ends of the two second square steel pipes 2, the movable support comprises two vertically arranged fourth steel pipes 6, a second reinforced steel pipe 7 is fixedly connected between the two fourth steel pipes 6, a fifth square steel pipe 8 is inserted at the lower end of each of the two fourth steel pipes 6, the lower ends of the third-party steel pipe 5 and the fifth-party steel pipe 8 are rotatably provided with rollers 9, the rear sides of the left and right sides of the first-party steel pipe 1 on the rear side are respectively detachably and fixedly connected to the two second-party steel pipes 2, the upper ends of the two fourth-party steel pipes 6 are respectively hinged to the front side portions of the left and right-party steel pipes 1, the two fourth-party steel pipes 6 are respectively connected with the left and right-party steel pipes 1 through locking mechanisms, and a cushion 10 is fixedly arranged between the front and rear first-party steel pipes 1.

The upper end integrated into one piece of two fourth party steel pipes 6 has the upside, the equal open first U template 11 in front side and rear side, the left and right sides board of the first U template 11 in left side and the left and right sides board of the first U template 11 in right side articulate the preceding lateral part at the first party steel pipe 1 in the left and right sides through a round pin axle 40 respectively, all set up on the first party steel pipe 1 in the left and right sides and correspond penetrating and be located the first spacing hole 12 of the 40 rear sides of corresponding round pin axle about, correspond penetrating and match the first spliced eye 13 that corresponds with first spacing hole 12 about all being equipped with on the left and right sides board of the first U template 11 in left side and the left and right sides board of the first U template 11 in right side.

The left locking mechanism comprises a fastening bolt 14 and a first butterfly nut 15, a vertical upright post 16 is fixedly connected to the lower portion of the front end of the left first steel tube 1, a first lug plate 17 is fixedly connected to one side of the vertical upright post 16, a second lug plate 18 corresponding to the upper side portion of the left fourth steel tube 6 and the vertical lug plate in a front-back mode is fixedly connected to the upper side portion of the left fourth steel tube 6, the fastening bolt 14 sequentially penetrates through the first lug plate 17 and the second lug plate 18 in the front-back horizontal direction, the front end head portion of the fastening bolt 14 is tightly pressed on the front side face of the first lug plate 17, the root of the rear end of the fastening bolt 14 is located on the rear side face of the second lug plate 18, and the first butterfly nut 15 is screwed on the root of the rear end of the fastening bolt 14 and tightly pressed on the rear side face of the second lug plate 18.

First spring catch (for current conventional technology, not shown) is all installed to the upper portion of third party steel pipe 5, the left and right sides pipe lateral part of U type square steel pipe 3 and the upper side of fifth square steel pipe 8, all offers on the upper portion and the lower lateral part of second square steel pipe 2 and the fourth square steel pipe 6 and corresponds the spacing hole 19 of a plurality of second of joint with first spring catch matching.

The rear sides of the left and right sides of the rear first steel pipe 1 are integrally formed with upper sides, the lower side and the rear side of the second U-shaped plate 20 are both open, two second inserting holes (not shown) are formed in the left side plate and the right side plate of the second U-shaped plate 20 at intervals, two third limiting holes 21 which are through left and right and correspond to the two second inserting holes are formed in the middle and the lower portion of the second square steel tube 2, the second U-shaped plate 20 is fixedly connected with the second square steel tube 2 through a U-shaped screw 22 which penetrates through the two second inserting holes and the two third limiting holes 21, two ends of the U-shaped screw 22 are in threaded connection with a second butterfly nut 41 which is tightly pressed on the second square steel tube 2, and a certain third limiting hole 21 which corresponds to the left and right and is through to a fourth limiting hole (not shown) which is through right and corresponds to the lower portion of the second square steel tube 2 is formed in the third square steel tube 5.

The two third limiting holes 21 at the lower part of the second square steel tube 2 and the two second limiting holes 19 at the lower part of the second square steel tube 2 are the same.

A plurality of double-layer tightening belts 23 positioned at the upper parts of the first square steel tubes 1 are laid side by side left and right between the front and the rear first square steel tubes 1, a first long splint 24 is arranged under the front first square steel tube 1, the first long splint 24 is fixedly connected with the lower side surface of the front first square steel tube 1 through a plurality of first locking screws 25, the front side part of each double-layer tightening belt 23 is wound on the front first square steel tube 1 and positioned between the front first square steel tube 1 and the first long splint 24, the front side part of each double-layer tightening belt 23 is clamped by the first long splint 24, a second long splint 26 is arranged under the rear first square steel tube 1, the second long splint 26 is fixedly connected with the lower side surface of the rear first square steel tube 1 through a plurality of second locking screws 27, the rear side part of each double-layer tightening belt 23 is wound on the rear first square steel tube 1 and positioned between the rear first square steel tube 1 and the second long splint 26, the second elongated splint 26 clamps the rear side edge of each of the double-layered tightening bands 23, and the seat cushion 10 is sandwiched between the double-layered tightening bands 23.

A third reinforced steel pipe 28 is fixedly connected between the upper side parts of the left and right side pipes of the U-shaped square steel pipe 3, a handrail steel pipe 29 is inserted into both left and right ports of the third reinforced steel pipe 28, each handrail steel pipe 29 is provided with a second spring pin (not shown in the figure for the conventional design), and a plurality of fifth limiting holes (not shown in the figure) which are matched with the left and right second spring pins to be correspondingly clamped are symmetrically arranged on the third reinforced steel pipe 28 in a left-right manner.

The U-shaped square steel tube 3 is sleeved with a storage bag 30, the storage bag 30 is provided with a rectangular backpack 31 positioned at the front side of the U-shaped square steel tube 3, the upper edge of the rectangular backpack 31 is provided with a zipper (conventional technology, not shown in the figure), and a backrest cushion block (not shown in the figure) is arranged in the rectangular backpack 31.

Handle 32 of fixedly connected with on the first reinforcing steel pipe 4 of upside, the first reinforcing steel pipe 4 and the second reinforcing steel pipe 7 of downside correspond around and with the same height, be provided with two and control firm pipes 33 side by side between first reinforcing steel pipe 4 of downside and the second reinforcing steel pipe 7, a rectangular screw rod 34 is installed to every firm pipe 33 homocentric, rectangular screw rod 34 passes second reinforcing steel pipe 7 in proper order along the fore-and-aft direction, the first reinforcing steel pipe 4 of firm pipe 33 and downside, the front end screw head of rectangular screw rod 34 compresses tightly the front side at second reinforcing steel pipe 7, the rear side threaded connection of rectangular screw rod 34 has a third butterfly nut 35, third butterfly nut 35 compresses tightly the rear side at the first reinforcing steel pipe 4 of downside. The handle 32 is arranged to facilitate lifting of the whole seat by a person, so that the whole seat can conveniently cross small ditches or uneven ground which is not easy to cross; the stabilizing pipe 33 can further support and stabilize the two fourth steel pipes 6, so that the two fourth steel pipes 6 are more firmly kept vertical, and the structure is more stable and safe when people sit on the seat.

The lower extreme of left side third party steel pipe 5 bends towards the left side, the lower extreme of right side third party steel pipe 5 bends towards the right side, the upside rear side of U type square steel pipe 3 is provided with a link plate 36, the right side portion of link plate 36 rotates and connects in the upside trailing flank middle part of U type square steel pipe 3, hanging hole 37 has been seted up to the left side portion of link plate 36, the inside magnet 38 that is provided with of upside of U type square steel pipe 3, the upside trailing flank of U type square steel pipe 3 is provided with the horizontal barrier 39 that is located link plate 36 downside, when link plate 36 rotates to the level left, the lower side middle part or the left side portion of link plate 36 contact with the upside of horizontal barrier 39, the left side position of link plate 36 is in the rear side of magnet 38 and adsorbs with magnet 38 (so, link plate 36 can accomodate the convenience, stable in structure).

First locking screw 25 and second locking screw 27 are convenient for change, and wherein cushion 10 and back cushion are softer part, and when summer, can all change into the plank with cushion 10 and back cushion, avoid summer high temperature weather overheated, lead to people to experience the sense and descend.

The multifunctional chair has multiple use functions, and is a chair under normal conditions, at the moment, the fifth steel pipe 8 is completely inserted into the fourth steel pipe 6, the roller 9 at the lower end of the fifth steel pipe 8 is positioned at the bottom in the fourth steel pipe 6, the bottom of the fourth steel pipe 6 and the bottom of the roller 9 at the lower end of the third steel pipe 5 are flush and are in contact with the ground, and the old sits on the cushion 10 and can lean against the rectangular backpack 31 provided with the backrest cushion block, so that the chair is comfortable; when the old people want to walk, the first spring pin on the fifth steel tube 8 is pressed down, the fifth steel tube 8 is drawn out from the fourth steel tube 6 by a certain length, the roller 9 at the lower end of the fifth steel tube 8 extends out of the fourth steel tube 6, similarly, the first spring pin on the third steel tube 5 is pressed down, the third steel tube 5 is drawn out from the second steel tube 2 by a certain length, the roller 9 at the lower end of the third steel tube 5 and the roller 9 at the lower end of the fifth steel tube 8 are flush and are in contact with the ground, then the second spring pin on the handrail steel tube 29 is pressed down, the two handrail steel tubes 29 are respectively drawn out from the left end port and the right end port of the third reinforced steel tube 28 by a certain length, so that the chair is transformed into a hand-held cart, the old people can walk by pushing the chair by holding both hands on the two handrail steel tubes 29, and the walking is convenient; if after shopping, articles can be put in the storage bag 30, the hanging plate 36 is rotated to be vertical, the hanging plate 36 can be hung or tied on the rear side of the bicycle by a hook or a rope penetrating through the hanging hole 37 on the hanging plate 36, at the moment, the seat is inclined backwards, the two rollers 9 on the rear side are contacted with the ground, the two rollers 9 on the front side are separated from the ground, and people can pull the seat to move by riding the bicycle; when more and larger objects need to be carried, the storage bag 30 is taken down, the third butterfly nut 41 is screwed down, the U-shaped screw 22 is removed, the second U-shaped plate 20 and the second square steel tube 2 are detached, then the fifth square steel tube 8 is completely inserted into the fourth square steel tube 6, the insertion depth of the third square steel tube 5 in the second square steel tube 2 is adjusted, a fourth limiting hole on the third square steel tube 5 corresponds to one third limiting hole 21 at the lower part of the second square steel tube 2 left and right, then the second U-shaped plate 20 is moved downwards to a second inserting hole at the upper side of the second U-shaped plate 20 and corresponds to the fourth limiting hole left and right, an upper side rod of the U-shaped screw 22 passes through a second inserting hole at the upper side of the second U-shaped plate 20, the fourth limiting hole and the third limiting hole 21 at the lower part of the second square steel tube 2, and the third butterfly nut 41 is installed on an upper side rod of the U-shaped screw 22 and screwed down, the fastening bolt 14 and the first butterfly nut 15 are removed, the two fourth steel pipes 6 are rotated backwards and folded to be horizontal, the first inserting hole 13 corresponds to the first limit hole 12 left and right, the fastening bolt 14 passes through the first inserting hole 13 and the first limit hole 12, so that the two fourth steel pipes 6 are respectively and fixedly connected with the first steel pipes 1 on the left side and the right side, thus the chair is changed into a pull chair, moreover, the rear ends of the first steel pipes 1 on the left side and the right side can be rotated upwards through the second U-shaped plate 20, the occupied space is reduced when the chair is not used, and the length of the U-shaped square steel pipe 3 inserted into the second square steel pipe 2 can be properly adjusted according to the size of a carried object (the same principle is the same as that of a pull rod structure of an umbrella by pressing down the first spring pins on the lower side parts of the left side and the right side of the U-shaped square steel pipe 3, and the principle is the conventional technology, those skilled in the art can do this without creative work, and will not be described in detail), so as to adjust the height of the top of the U-shaped square steel tube 3 from the seat cushion 10, so that larger or longer objects can be put down, and the use is convenient.

The above embodiments are merely to illustrate rather than to limit the technical solutions of the present invention, and although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that; modifications and equivalents may be made thereto without departing from the spirit and scope of the utility model and it is intended to cover in the claims the utility model as defined in the appended claims.

Claims

1. Multi-functional push-and-pull seat, its characterized in that: the steel tube pushing and pulling device comprises a rectangular frame, a pushing and pulling support and a movable support, wherein the rectangular frame is formed by welding four first square steel tubes end to end, the pushing and pulling support comprises two second square steel tubes and a U-shaped square steel tube, the two second square steel tubes are arranged side by side in a left-right and vertical mode, two first reinforcing steel tubes which are arranged side by side in an up-down mode are fixedly connected between the two second square steel tubes, the lower ends of the two second square steel tubes are respectively inserted with a third square steel tube, the front side, the rear side and the lower side of the U-shaped square steel tube are respectively opened, the left side tube and the right side tube of the U-shaped square steel tube are respectively inserted at the upper ends of the two second square steel tubes in a corresponding mode, the movable support comprises two vertically arranged fourth steel tubes, a second reinforcing steel tube is fixedly connected between the two fourth steel tubes, a fifth square steel tube is inserted at the lower ends of the two fourth steel tubes, and idler wheels are rotatably installed at the lower ends of the third steel tube and the fifth steel tube, the left and right sides of the first square steel pipe at the rear side are respectively detachably and fixedly connected to the two second square steel pipes, the upper ends of the two fourth steel pipes are respectively hinged to the front side portions of the left and right first square steel pipes, the two fourth steel pipes are respectively connected with the left and right first square steel pipes through locking mechanisms, and a cushion is fixedly arranged between the front and rear first square steel pipes.

2. A multi-function push-pull seat as claimed in claim 1 wherein: the upper end integrated into one piece of two fourth party steel pipes has the upside, the equal open first U template in front side and rear side, the left and right sides board of the first U template in left side and the left and right sides board of the first U template in right side articulate the preceding lateral part at the first party steel pipe in the left and right sides through a round pin axle respectively, all set up on the first party steel pipe in the left and right sides and correspond penetrating and be located the first spacing hole of corresponding round pin axle rear side, all be equipped with on the left and right sides board of the first U template in left side and the left and right sides board of the first U template in right side and correspond penetrating and with first spacing hole matching corresponding first spliced eye.

3. A multi-function push-pull seat as claimed in claim 2 wherein: left locking mechanism includes fastening bolt and first butterfly nut, a vertical stand of front end lower part fixedly connected with of left side first party steel pipe, the first otic placode of one side fixedly connected with of vertical stand, the second otic placode that corresponds around the last side fixedly connected with of left side fourth party steel pipe and the vertical otic placode, fastening bolt passes first otic placode and second otic placode in proper order along the fore-and-aft horizontal direction, fastening bolt's front end head sticiss at the leading flank of first otic placode, fastening bolt's rear end root is located the rear side of second otic placode, first butterfly nut spiro union is at fastening bolt's rear end root and compresses tightly the trailing flank at the second otic placode.

4. A multi-function push-pull seat as claimed in claim 3 wherein: first spring catch is all installed to the last lateral part of last lateral part, the left and right sides pipe lower lateral part of U type square steel pipe of third party steel pipe and the last lateral part of fifth square steel pipe, all offers on last lateral part and the lower lateral part of second square steel pipe and the fourth steel pipe to match the spacing hole of a plurality of second that corresponds the joint with first spring catch.

5. A multi-function push-pull seat as claimed in claim 4 wherein: the left and right sides portion rear side of the first side steel pipe of rear side integrated into one piece respectively has the equal open second U template of upside, downside and rear side, all opens the second spliced eye that two intervals set up from top to bottom on the board of the left and right sides of second U template, the middle part and the lower part of second side steel pipe all seted up about two penetrating and with two second spliced eyes match about the spacing hole of the third that corresponds, the U type screw rod and the second side steel pipe fixed connection of two second spliced eyes and two spacing holes of third are passed respectively through one to the second U template, the equal threaded connection in both ends of U type screw rod has a second butterfly nut that compresses tightly on the second side steel pipe, set up on the third side steel pipe with the spacing hole of a certain third of second side steel pipe lower part about and corresponding and penetrating fourth spacing hole.

6. A multi-function push-pull seat as claimed in claim 5 wherein: a plurality of double-layer tightening belts positioned at the upper parts of the first square steel tubes are laid between the front and the rear square steel tubes in parallel from left to right, a first long splint is arranged under the front square steel tube and fixedly connected with the lower side surface of the front square steel tube through a plurality of first locking screws, the front side part of each double-layer tightening belt is wound on the front square steel tube and positioned between the front square steel tube and the first long splint, the first long splint clamps the front side edge of each double-layer tightening belt, a second long splint is arranged under the rear square steel tube and fixedly connected with the lower side surface of the rear square steel tube through a plurality of second locking screws, the rear side part of each double-layer tightening belt is wound on the rear square steel tube and positioned between the rear square steel tube and the second long splint, and the second long splint clamps the rear side edge of each double-layer tightening belt, the cushion is clamped in the middle of each double-layer tightening belt.

7. A multi-function push-pull seat as claimed in claim 6 wherein: fixedly connected with a third between the left and right sides pipe upper portion of U type square steel pipe strengthens the steel pipe, and the third is strengthened the steel pipe and is all pegged graft and have a handrail steel pipe in both ends mouth about, all is provided with a second spring catch on the every handrail steel pipe, and bilateral symmetry has seted up a plurality of and has controlled two second spring catches and match the fifth spacing hole that corresponds the joint on the steel pipe is strengthened to the third.

8. A multi-function push-pull seat according to any one of claims 5-7 wherein: the U-shaped square steel tube is sleeved with a storage bag, a rectangular backpack positioned on the front side of the U-shaped square steel tube is arranged on the storage bag, a zipper is arranged on the upper edge of the rectangular backpack, and a backrest cushion block is arranged in the rectangular backpack.

9. A multi-function push-pull seat as claimed in claim 8 wherein: handle of fixedly connected with on the first enhancement steel pipe of upside, the first enhancement steel pipe of downside and second strengthen the steel pipe with the height and correspond around, the first enhancement steel pipe of downside and second are strengthened and are provided with two and control firm pipes side by side between the steel pipe, a rectangular screw rod is installed to every firm equal concentric mounting of pipe, rectangular screw rod passes the second in proper order along the fore-and-aft direction and strengthens the steel pipe, the first enhancement steel pipe of firm pipe and downside, the front end screw head of rectangular screw rod compresses tightly the front side at the second enhancement steel pipe, the rear portion threaded connection of rectangular screw rod has a third butterfly nut, the third butterfly nut compresses tightly the rear side at the first enhancement steel pipe of downside.

10. A multi-function push-pull seat as claimed in claim 9 wherein: the lower extreme of left side third party steel pipe is bent towards the left side, the lower extreme of right side third party steel pipe is bent towards the right side, the upside rear side of U type square steel pipe is provided with a link plate, the right side portion of link plate rotates the upside trailing flank middle part of connecting at U type square steel pipe, the hanging hole has been seted up to the left side portion of link plate, the inside magnet that is provided with of upside of U type square steel pipe, the upside trailing flank of U type square steel pipe is provided with the horizontal blend stop that is located the link plate downside, when the link plate rotates to the level to the left, the upside contact of the lower limb middle part of link plate or left side portion and horizontal blend stop, the left side position of link plate is in the rear side of magnet and adsorbs with magnet.