CN210826633U - High-quality steel chair is sewing machine for seat - Google Patents

Abstract

The utility model relates to the technical field of accessory devices of processing equipment, in particular to a sewing machine for a seat surface of a high-quality steel pipe chair, which can automatically move one end of the seat surface of the high-quality steel pipe chair and assist the sewing machine structure to process the seat surface of the high-quality steel pipe chair, thereby saving time and labor and improving practicability; comprises a sewing machine structure and a supporting plate, wherein the top end of the supporting plate is connected with the bottom end of the sewing machine structure; the automatic feeding device comprises a base plate, a first alternating current motor, a rotating shaft, a gear, a rack, an I-shaped sliding block, a concave sliding rail and two groups of stop blocks, wherein the front output end of the first alternating current motor is connected with the rear end of the rotating shaft, the front end of the rotating shaft is connected with the middle part of the rear end of the gear, the automatic feeding device further comprises a fixed plate, an extension plate, a hydraulic cylinder, a telescopic rod, an upper clamping plate and a lower clamping plate, the top end of the first alternating current motor is connected with the bottom end of the fixed plate, the bottom end of the extension plate is connected with.

Description

High-quality steel chair is sewing machine for seat

Technical Field

The utility model relates to a processing equipment auxiliary device's technical field especially relates to a high-quality steel chair is sewing machine for seat.

Background

As is well known, a sewing machine for a seat surface of a high-quality steel pipe seat is a device used for processing the seat surface of the high-quality steel pipe seat, so that people can more conveniently process the seat surface of the high-quality steel pipe seat, and the sewing machine is widely used in the field of processing equipment; the existing sewing machine for the seat surface of the high-quality steel pipe chair comprises a sewing machine structure and a supporting plate, wherein the top end of the supporting plate is connected with the bottom end of the sewing machine structure, and pillars are arranged on the left front side, the left rear side, the right front side and the right rear side of the bottom end of the supporting plate; when the existing sewing machine for the seat surface of the high-quality steel pipe seat is used, the device is firstly fixed at a proper position, the seat surface of the high-quality steel pipe seat is placed on the supporting plate, a worker manually pulls one end of the seat surface of the high-quality steel pipe seat and moves the seat surface of the high-quality steel pipe seat, the structure of the sewing machine is assisted to process the seat surface of the high-quality steel pipe seat, the supporting column can fix the supporting plate, the structure of the sewing machine is purchased, and the worker operates the structure of the sewing machine through a purchased instruction; present high-quality for steel chair seat sewing machine in use discovers that the one end that makes high-quality steel chair seat removes, and supplementary sewing machine structure is processed high-quality steel chair seat, needs the staff manual operation, needs certain manpower, and is more time-consuming and energy-consuming, and the practicality is lower.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a can make the automatic removal of one end of high-quality steel pipe chair seat, supplementary sewing machine structure is processed high-quality steel pipe chair seat, and labour saving and time saving has improved the high-quality steel pipe chair seat of practicality and is used sewing machine.

The utility model relates to a sewing machine for a seat surface of a high-quality steel pipe chair, which comprises a sewing machine structure and a supporting plate, wherein the top end of the supporting plate is connected with the bottom end of the sewing machine structure; the automatic feeding device also comprises a bottom plate, a first alternating current motor, a rotating shaft, a gear, a rack, an I-shaped slide block, a concave slide rail and two groups of check blocks, wherein the front output end of the first alternating current motor is connected with the rear end of the rotating shaft, the front end of the rotating shaft is connected with the middle part of the rear end of the gear, the bottom end of the gear is engaged and connected with the right side of the top end of the rack, the bottom end of the rack is connected with the left front side of the top end of the bottom plate, the inner bottom ends of the two groups of check blocks are respectively connected with the left end and the right end of the rack, the bottom ends of the two groups of check blocks are connected with the left front side of the top end of the bottom plate, the bottom end of the first alternating current motor is connected with the bottom end of the fixed plate, the bottom end of the support plate is connected, extension board top links to each other with last cardboard bottom left side, and the hydraulic cylinder bottom links to each other with the fixed plate top, and pneumatic cylinder top output links to each other with the telescopic link bottom, and the telescopic link top links to each other with cardboard bottom down.

The utility model discloses a high-quality steel chair seat sewing machine, still include four groups of first screwed pipes, four groups of first threaded rods, four groups of ball bearings and four groups of spacing pieces, bottom plate top right front side inside, top right rear side inside, top front side middle part inside and top rear side middle part inside all are provided with places the chamber, four groups of ball bearings and four groups of spacing pieces are placed respectively in four groups of places the intracavity, four groups of first screwed pipe bottom respectively pass bottom plate top right front side, top right rear side, top front side middle part and top rear side middle part and insert four groups of ball bearings inside respectively and link to each other with four groups of spacing pieces, four groups of first screwed pipe top all communicates and is provided with the opening, four groups of first threaded rods top respectively with backup pad bottom left front side, left rear side, right front side and right rear side link to each other, four groups of first threaded rod bottom respectively pass four groups of first screwed pipe top and respectively screw assembly to four groups of first screwed pipe top inside, still include second AC motor, the transmission shaft, first sprocket, four groups of second sprockets and chains, bottom plate right front side inside is provided with holds the chamber, second AC motor places and holds intracavity portion, second AC motor top output end links to each other with the transmission shaft bottom, the transmission shaft top is passed bottom plate inside top lateral wall and is linked to each other with first sprocket bottom, four groups of second sprockets are fixed suit respectively on four groups of first screwed pipe top lateral walls, first sprocket front end is connected with the meshing of preceding lateral wall middle part in the chain, left front lateral wall in the chain, interior left back lateral wall, interior right front lateral wall and interior right back lateral wall are connected with the meshing of four groups of second sprocket outer ends respectively.

The utility model discloses a high-quality steel pipe chair is sewing machine for seat still includes four group's second threaded rods and four group's second screwed pipes, and four group's second threaded rod tops link to each other with bottom plate bottom left front side, left rear side, right front side and right rear side respectively, and four group's second screwed pipe tops all communicate and are provided with the intercommunication mouth, and four group's second threaded rod bottoms pass four group's second screwed pipe tops respectively and inside spiral shell dress to four group's second screwed pipe tops respectively.

The utility model discloses a high-quality steel pipe is sewing machine for seat, still include two sets of buffer spring, two sets of buffer spring the inner links to each other with second alternating current motor left end and right-hand member respectively, and two sets of buffer spring outer ends link to each other with interior left side wall of bottom plate and interior right side wall respectively.

The utility model discloses a high-quality steel pipe chair is sewing machine for seat, four first threaded rod front side tops of group, rear side top, left side top and right side top all are provided with the stiffener, and sixteen stiffener tops all link to each other with the backup pad bottom.

The utility model discloses a high-quality steel pipe is sewing machine for seat, still include the light, the light bottom links to each other with backup pad top right side front side.

The utility model discloses a high-quality steel pipe is sewing machine for seat, four group's second screwed pipe front ends, rear end, left end and right-hand member all are provided with the rotation sand grip.

The utility model discloses a high-quality steel pipe is sewing machine for seat, still include four group's steady pads, four group's steady pad tops link to each other with four group's second screwed pipe bottoms respectively.

Compared with the prior art, the beneficial effects of the utility model are that: one end of the seat surface of the high-quality steel pipe chair can be automatically moved, the auxiliary sewing machine structure can process the seat surface of the high-quality steel pipe chair, time and labor are saved, one end of the seat surface of the high-quality steel pipe chair is placed between an upper clamping plate and a lower clamping plate, a hydraulic cylinder is electrically connected, the hydraulic cylinder drives a telescopic rod to extend or retract, the lower clamping plate moves up and down, the upper clamping plate and the lower clamping plate clamp one end of the seat surface of the high-quality steel pipe chair, meanwhile, a first alternating current motor is electrically connected, the first alternating current motor drives a rotating shaft to rotate, the rotating shaft drives a gear to rotate, the gear moves left and right on a rack, an I-shaped sliding block can move on a concave sliding rail, the first alternating current motor moves left and right, the upper clamping plate and the lower clamping plate move left and right, and one end of the seat surface of the high-quality steel pipe chair, the first ac motor and the hydraulic cylinder are both purchased, and the first ac motor and the hydraulic cylinder are electrically connected through a use instruction purchased together when in use.

Drawings

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

FIG. 2 is a schematic view of the right structure of the hydraulic cylinder part of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 1;

FIG. 4 is an enlarged view of a portion B of FIG. 1;

in the drawings, the reference numbers: 1. a sewing machine structure; 2. a support plate; 3. a base plate; 4. a first alternating current motor; 5. a rotating shaft; 6. a gear; 7. a rack; 8. an I-shaped slide block; 9. a concave slide rail; 10. a stopper; 11. a fixing plate; 12. a support plate; 13. a hydraulic cylinder; 14. a telescopic rod; 15. an upper clamping plate; 16. a lower clamping plate; 17. a first threaded pipe; 18. a first threaded rod; 19. a ball bearing; 20. a second alternating current motor; 21. a drive shaft; 22. a first sprocket; 23. a second sprocket; 24. a second threaded rod; 25. a second threaded pipe; 26. a buffer spring; 27. a reinforcing bar; 28. an illuminating lamp; 29. rotating the convex strips; 30. a stabilizing pad; 31 chain.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 4, the sewing machine for a seat of a high-quality steel chair of the present invention comprises a sewing machine structure 1 and a support plate 2, wherein the top end of the support plate 2 is connected with the bottom end of the sewing machine structure 1; the device also comprises a bottom plate 3, a first alternating current motor 4, a rotating shaft 5, a gear 6, a rack 7, an I-shaped slide block 8, a concave slide rail 9 and two groups of stop blocks 10, wherein the front output end of the first alternating current motor 4 is connected with the rear end of the rotating shaft 5, the front end of the rotating shaft 5 is connected with the middle part of the rear end of the gear 6, the bottom end of the gear 6 is meshed and connected with the right side of the top end of the rack 7, the bottom end of the rack 7 is connected with the left front side of the top end of the bottom plate 3, the bottom ends of the two groups of stop blocks 10 are respectively connected with the left front side of the top end of the bottom plate 3, the bottom end of the first alternating current motor 4 is connected with the top end of the I-shaped slide block 8, the bottom end of the I-shaped slide block 8 can be matched and slidably connected with the right side of the top end of the concave, the top end of the first alternating current motor 4 is connected with the bottom end of the fixed plate 11, the bottom end of the support plate 12 is connected with the left side of the top end of the fixed plate 11, the top end of the support plate 12 is connected with the left side of the bottom end of the upper clamping plate 15, the bottom end of the hydraulic cylinder 13 is connected with the top end of the fixed plate 11, the top output end of the hydraulic cylinder 13 is connected with the bottom end of the telescopic rod 14, and; one end of the seat surface of the high-quality steel pipe chair can be automatically moved, the auxiliary sewing machine structure can process the seat surface of the high-quality steel pipe chair, time and labor are saved, one end of the seat surface of the high-quality steel pipe chair is placed between an upper clamping plate and a lower clamping plate, a hydraulic cylinder is electrically connected, the hydraulic cylinder drives a telescopic rod to extend or retract, the lower clamping plate moves up and down, the upper clamping plate and the lower clamping plate clamp one end of the seat surface of the high-quality steel pipe chair, meanwhile, a first alternating current motor is electrically connected, the first alternating current motor drives a rotating shaft to rotate, the rotating shaft drives a gear to rotate, the gear moves left and right on a rack, an I-shaped sliding block can move on a concave sliding rail, the first alternating current motor moves left and right, the upper clamping plate and the lower clamping plate move left and right, and one end of the seat surface of the high-quality steel pipe chair, the first ac motor and the hydraulic cylinder are both purchased, and the first ac motor and the hydraulic cylinder are electrically connected through a use instruction purchased together when in use.

The utility model relates to a high-quality sewing machine for the seat surface of a steel pipe chair, which also comprises four groups of first threaded pipes 17, four groups of first threaded rods 18, four groups of ball bearings 19 and four groups of limiting pieces, wherein the right front side inner part of the top end, the right rear side inner part of the top end, the middle part inner part of the front side of the top end and the middle part inner part of the rear side of the top end of a bottom plate 3 are all provided with a placing cavity, the four groups of ball bearings 19 and the four groups of limiting pieces are respectively placed in the four groups of placing cavities, the bottom ends of the four groups of first threaded pipes 17 respectively pass through the right front side of the top end, the right rear side of the top end, the middle part of the front side of the top end and the middle part of the rear side of the top end of the bottom plate 3 and are respectively inserted into the four groups of ball bearings 19 and are respectively connected with the four groups of limiting pieces, the bottom ends of the four groups of first threaded rods 18 respectively penetrate through the top ends of the four groups of first threaded pipes 17 and are respectively screwed into the top ends of the four groups of first threaded pipes 17, the novel screw-type screw further comprises a second alternating-current motor 20, a transmission shaft 21, a first chain wheel 22, four groups of second chain wheels 23 and a chain 31, a containing cavity is formed in the right front side of the bottom plate 3, the second alternating-current motor 20 is placed in the containing cavity, the output end of the top of the second alternating-current motor 20 is connected with the bottom end of the transmission shaft 21, the top end of the transmission shaft 21 penetrates through the inner top side wall of the bottom plate 3 and is connected with; can highly adjust the backup pad, carry out the electricity with second AC motor and connect, second AC motor drives the transmission shaft and rotates, the transmission shaft drives first sprocket and rotates, the transmission effect through the chain, and then make the second sprocket rotate, and then make first screwed pipe rotate, first threaded rod can be at the inside removal about carrying out of first screwed pipe, and then highly adjust the backup pad, the adaptability has been improved, second AC motor purchases and purchases, and second AC motor carries out the electricity through the instruction manual of buying together when using and connects.

The utility model discloses a high-quality steel pipe chair is sewing machine for seat, still include four groups of second threaded rods 24 and four groups of second threaded pipes 25, four groups of second threaded rods 24 top are continuous with bottom plate 3 bottom left front side, left rear side, right front side and right rear side respectively, four groups of second threaded pipes 25 top all communicate and are provided with the intercommunication mouth, four groups of second threaded rods 24 bottom pass four groups of second threaded pipes 25 top respectively and screw-mount to four groups of second threaded pipes 25 top inside respectively; can adjust the stationarity of device, the staff rotates the second screwed pipe, makes the second threaded rod carry out the removal from top to bottom at the second screwed pipe is inside, and then adjusts the corner height of device, has improved the stability of device.

The sewing machine for the seat surface of the high-quality steel pipe chair of the utility model also comprises two groups of buffer springs 26, the inner ends of the two groups of buffer springs 26 are respectively connected with the left end and the right end of the second alternating current motor 20, and the outer ends of the two groups of buffer springs 26 are respectively connected with the inner left side wall and the inner right side wall of the bottom plate 3; the buffer spring can enable the second alternating current motor to have certain buffer capacity.

In the sewing machine for the seat surface of the high-quality steel pipe chair, the top ends of the front side, the top end of the rear side, the top ends of the left side and the top ends of the right side of the four groups of first threaded rods 18 are all provided with reinforcing rods 27, and the top ends of the sixteen groups of reinforcing rods 27 are all connected with the bottom end of the supporting plate 2; the reinforcing rod can make the first threaded rod be connected with the supporting plate more firmly.

The utility model discloses a sewing machine for a high-quality steel pipe chair seat surface, which also comprises a lighting lamp 28, wherein the bottom end of the lighting lamp 28 is connected with the right front side of the top end of the supporting plate 2; the illuminating lamp can enable the device to work even under the condition that the environment is dark, the illuminating lamp is purchased, and the illuminating lamp is electrically connected through a purchased instruction book when in use.

In the sewing machine for the seat surface of the high-quality steel pipe chair of the utility model, the front end, the rear end, the left end and the right end of the four groups of second threaded pipes 25 are provided with the rotary raised strips 29; the rotation of the raised line can make the worker more convenient when rotating the second threaded pipe.

The sewing machine for the seat surface of the high-quality steel pipe chair of the utility model also comprises four groups of stabilizing pads 30, wherein the top ends of the four groups of stabilizing pads 30 are respectively connected with the bottom ends of the four groups of second screwed pipes 25; the stabilizing pad may allow the device to be more securely held in one position.

The utility model discloses a sewing machine for high-quality steel pipe seat, it at first fixes the device in a suitable position at during operation, place high-quality steel pipe seat in the backup pad, make the one end of high-quality steel pipe seat remove, supplementary sewing machine structure is processed high-quality steel pipe seat, sewing machine structure is bought and is bought, and the staff operates sewing machine structure through the instruction book of buying together, can make the one end of high-quality steel pipe seat remove automatically, supplementary sewing machine structure is processed high-quality steel pipe seat, it is labour saving and time saving relatively, place one end of high-quality steel pipe seat between last cardboard and lower cardboard, carry out the electricity with the pneumatic cylinder, the pneumatic cylinder drives the telescopic link and stretches out or the action of retracting, and then make lower cardboard carry out the up-and-down removal, make upper cardboard and lower cardboard press from both sides tightly the one end of high-quality steel pipe seat, meanwhile, the first alternating current motor is electrically connected, the first alternating current motor drives the rotating shaft to rotate, the rotating shaft drives the gear to rotate, the gear moves left and right on the rack, the I-shaped sliding block can move on the concave sliding rail, the first alternating current motor further moves left and right, the upper clamping plate and the lower clamping plate further move left and right, one end of the seat surface of the high-quality steel pipe chair can automatically move left and right, the height of the support plate can be adjusted, the second alternating current motor is electrically connected, the second alternating current motor drives the transmission shaft to rotate, the transmission shaft drives the first chain wheel to rotate, the second chain wheel further rotates through the transmission effect of the chain, the first threaded pipe further rotates, the first threaded rod can move up and down in the first threaded pipe, the height of the support plate is adjusted, and the adaptability is improved, the stability of the device can be adjusted, the worker rotates the second threaded pipe to enable the second threaded rod to move up and down in the second threaded pipe, the height of the corner of the device is further adjusted, the stability of the device is improved, the second alternating current motor can be enabled to have certain buffering capacity by the buffer spring, the first threaded rod can be more firmly connected with the supporting plate by the reinforcing rod, the device can also work under the condition of dark environment by the illuminating lamp, the second threaded pipe can be more conveniently rotated by workers by rotating the raised line, the device can be more stably fixed at one position by the stabilizing pad, and the first alternating current motor, the second alternating current motor, the illuminating lamp and the hydraulic cylinder are all purchased, and the first alternating current motor, the second alternating current motor, the illuminating lamp and the hydraulic cylinder are electrically connected through a use instruction which is purchased together when the hydraulic cylinder is used.

The utility model discloses a high-quality steel chair is sewing machine for seat, above the mounting means, connected mode or the mode that sets up of all parts are welding, riveting or other common mechanical means, wherein slidable/rotate fixedly promptly for slide/rotate the state under not dropping, seal when sealed intercommunication is two connecting pieces intercommunications promptly, and concrete structure, model and the coefficient index of its all parts are its from taking the technique, as long as can reach all can implementing of its beneficial effect, the event is not adding the perusal more.

In the sewing machine for the seat surface of the high-quality steel pipe chair of the utility model, under the condition that the opposite explanation is not made, the orientation words contained in the terms of 'up-down, left-right, front-back, inside-outside, vertical and horizontal' and the like only represent the orientation of the term in the normal use state, or be a trivial term understood by those skilled in the art, and should not be considered as limiting the term, at the same time, the numerical terms "first," "second," and "third," etc. do not denote any particular quantity or order, but rather are used to distinguish one from another, furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but also includes other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (8)

1. A high-quality sewing machine for a seat surface of a steel pipe chair comprises a sewing machine structure (1) and a supporting plate (2), wherein the top end of the supporting plate (2) is connected with the bottom end of the sewing machine structure (1); it is characterized by also comprising a bottom plate (3), a first alternating current motor (4), a rotating shaft (5), a gear (6), a rack (7), an I-shaped sliding block (8), a concave sliding rail (9) and two groups of check blocks (10), wherein the front output end of the first alternating current motor (4) is connected with the rear end of the rotating shaft (5), the front end of the rotating shaft (5) is connected with the middle part of the rear end of the gear (6), the bottom end of the gear (6) is meshed and connected with the right side of the top end of the rack (7), the bottom end of the rack (7) is connected with the left front side of the top end of the bottom plate (3), the bottom ends of the two groups of check blocks (10) are respectively connected with the left end and the right end of the rack (7), the bottom ends of the two groups of check blocks (10) are connected with the left front side of the top end of the bottom plate (3), the bottom end of the first, concave type slide rail (9) bottom links to each other with bottom plate (3) top left rear side, still include fixed plate (11), extension board (12), pneumatic cylinder (13), telescopic link (14), go up cardboard (15) and lower cardboard (16), first alternating current motor (4) top links to each other with fixed plate (11) bottom, extension board (12) bottom links to each other with fixed plate (11) top left side, extension board (12) top links to each other with last cardboard (15) bottom left side, pneumatic cylinder (13) bottom links to each other with fixed plate (11) top, pneumatic cylinder (13) top output links to each other with telescopic link (14) bottom, telescopic link (14) top links to each other with cardboard (16) bottom down.

2. The sewing machine for a seat of a high quality steel tubular chair as claimed in claim 1, further comprising four sets of first threaded pipes (17), four sets of first threaded rods (18), four sets of ball bearings (19) and four sets of position limiting pieces, wherein the bottom plate (3) is provided with a placing cavity inside the right front side of the top end, inside the right rear side of the top end, inside the middle part of the front side of the top end and inside the middle part of the rear side of the top end, the four sets of ball bearings (19) and the four sets of position limiting pieces are respectively placed inside the four sets of placing cavities, the bottom ends of the four sets of first threaded pipes (17) respectively penetrate through the right front side of the top end, the right rear side of the top end, the middle part of the front side of the top end and the middle part of the rear side of the top end of the bottom plate (3) and are respectively inserted into the four sets of ball bearings (19) and respectively connected with the four sets of position limiting pieces, the top ends of the four, The left rear side, the right front side and the right rear side are connected, the bottom ends of four groups of first threaded rods (18) respectively penetrate through the top ends of the four groups of first threaded pipes (17) and are respectively screwed into the top ends of the four groups of first threaded pipes (17), the electric heating device further comprises a second alternating current motor (20), a transmission shaft (21), a first chain wheel (22), four groups of second chain wheels (23) and a chain (31), a containing cavity is arranged in the right front side of the bottom plate (3), the second alternating current motor (20) is placed in the containing cavity, the output end of the top of the second alternating current motor (20) is connected with the bottom end of the transmission shaft (21), the top end of the transmission shaft (21) penetrates through the inner top side wall of the bottom plate (3) and is connected with the bottom end of the first chain wheel (22), the four groups of second chain wheels (23) are respectively fixedly sleeved on the outer side wall of the top ends of the four groups of first threaded pipes (17, the inner left front side wall, the inner left rear side wall, the inner right front side wall and the inner right rear side wall of the chain (31) are respectively meshed and connected with the outer ends of the four groups of second chain wheels (23).

3. The sewing machine for a seat of a high quality steel pipe chair as claimed in claim 2, further comprising four sets of second threaded rods (24) and four sets of second threaded pipes (25), wherein the top ends of the four sets of second threaded rods (24) are respectively connected with the left front side, the left rear side, the right front side and the right rear side of the bottom end of the bottom plate (3), the top ends of the four sets of second threaded pipes (25) are respectively communicated with a communication port, and the bottom ends of the four sets of second threaded rods (24) respectively penetrate through the top ends of the four sets of second threaded pipes (25) and are respectively screwed into the top ends of the four sets of second threaded pipes (25).

4. A sewing machine for a seat of a high quality steel pipe chair as claimed in claim 3, further comprising two sets of buffer springs (26), inner ends of the two sets of buffer springs (26) are connected to left and right ends of the second ac motor (20), respectively, and outer ends of the two sets of buffer springs (26) are connected to inner left and right side walls of the bottom plate (3), respectively.

5. The sewing machine for a seat of a premium steel pipe seat as claimed in claim 4, wherein four sets of the first threaded rods (18) are provided with reinforcing rods (27) at the top ends of the front side, the top ends of the rear side, the top ends of the left side and the top ends of the right side, and sixteen sets of the reinforcing rods (27) are connected to the bottom end of the supporting plate (2).

6. A sewing machine for a seat of a high quality steel pipe chair as claimed in claim 5, further comprising an illumination lamp (28), wherein the bottom end of the illumination lamp (28) is connected to the right front side of the top end of the support plate (2).

7. The sewing machine for a seat of a premium steel tubular chair as claimed in claim 6, wherein the four sets of second threaded pipes (25) are provided with rotation ribs (29) at the front, rear, left and right ends thereof.

8. The sewing machine for a seat surface of a high quality steel pipe seat as claimed in claim 7, further comprising four sets of the stabilizing pads (30), wherein the top ends of the four sets of the stabilizing pads (30) are respectively connected to the bottom ends of the four sets of the second threaded pipes (25).

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