CN215967286U

CN215967286U - Pneumatic press for inserting and assembling chair backrest

Info

Publication number: CN215967286U
Application number: CN202121783682.XU
Authority: CN
Inventors: 梁忠邱
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-03-08
Anticipated expiration: 2031-08-02

Abstract

The utility model belongs to the technical field of pneumatic presses, and particularly relates to a pneumatic press for inserting and assembling a chair backrest, aiming at the problems that the vertical adjusting range of the pneumatic press is limited, the working efficiency of the pneumatic press is influenced and the using effect is not good due to the fact that a support column of the existing pneumatic press for inserting and assembling the chair backrest is fixed and cannot be adjusted up and down conveniently. The height of the air cylinder can be adjusted according to use requirements, the up-and-down movement range of the pressure rod is enlarged, and the relative distance between the two air cylinders can be adjusted to adapt to processing of different chair sizes, so that the chair is beneficial to use.

Description

Pneumatic press for inserting and assembling chair backrest

Technical Field

The utility model relates to the technical field of pneumatic presses, in particular to a pneumatic press for inserting and assembling a chair backrest.

Background

The chair is a piece of daily life furniture, a piece of seating with a backrest and armrests, and the style of the chair is diversified nowadays, such as an office chair, a rocking chair, a folding chair and the like. As for office chairs, due to the large structure, the office chairs need to be divided into various parts to be processed and produced in the production process, and finally, the parts are assembled and processed. Wherein the back of office chair mostly is divided two parts and assembles the combination, and partly is the back iron frame of metal, and partly is the back frame of PA material, has two confession back of the body frames on the back iron frame and inserts the jack of establishing the installation, and the back iron frame is as the base of back, thereby the back frame forms whole back through inserting to establish and install on the back iron frame.

The existing pneumatic press for inserting and assembling the chair backrest generally controls a pressure rod to move up and down through a cylinder, however, a support column is fixed and cannot be conveniently adjusted up and down, so that the up-and-down adjustment range of the pneumatic press is limited, the working efficiency of the pneumatic press can be influenced, the using effect is not good enough, and therefore the pneumatic press for inserting and assembling the chair backrest is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that the up-down adjusting range of a pneumatic press is limited, the working efficiency of the pneumatic press is influenced and the using effect is not good enough due to the fact that an existing pneumatic press for inserting and assembling a chair backrest is fixed and cannot be adjusted up and down conveniently.

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

a pneumatic press for inserting and assembling a chair backrest comprises a base, wherein two sliding grooves are formed in one side of the top of the base, sliding plates are arranged in the two sliding grooves in a sliding manner, vertical grooves are formed in the tops of the two sliding plates, supporting plates are arranged in the two vertical grooves in a sliding manner, a top plate is fixedly arranged at the tops of the two supporting plates, an air cylinder is fixedly arranged at one side of the bottom of the top plate, a pressing plate is fixedly connected onto an output shaft of the air cylinder, a pressing rod is fixedly arranged at one side of the bottom of the pressing plate, transverse plates are fixedly arranged at one sides, close to each other, of the two supporting plates, a connecting plate is sleeved at the outer side of the vertical shaft in a sliding manner, connecting grooves are formed in the front side and the rear side of the connecting plate, the two transverse plates are respectively connected with the corresponding connecting grooves in a sliding manner, one ends of racks are fixedly connected to the front side and the rear side of the bottom of the connecting plate, a fixing plate is fixedly sleeved at the outer side of the vertical shaft, the equal fixed mounting in both sides has the riser around the fixed plate top, and two riser one sides all rotate and install drive gear, and two drive gear mesh with the rack that corresponds respectively mutually, and two equal fixed mounting in drive gear one side have the worm wheel, the base top is rotated and is installed two worms, and two worms mesh with the worm wheel that corresponds respectively mutually, the first gear of equal fixed mounting on two worms, the second gear has been cup jointed in the rotation of the vertical axis outside, and two first gears all mesh with the second gear mutually, one side that two mounting panels of base top fixed mounting are close to each other is rotated and is installed same cross axle, and equal fixed mounting has bevel gear, two bevel gear meshes mutually on the worm of cross axle front end and the rear side that is located.

Preferably, the mounting hole has all been seted up to both sides around the base, and same lead screw is installed in two mounting holes rotation, and the lead screw outside is provided with two external screw threads that revolve to opposite, and two equal screw cup joints in the lead screw outside of slide, and lead screw rear end fixed mounting has the knob, is convenient for adjust the relative distance of slide.

Preferably, the rear end of the transverse shaft is fixedly provided with a turntable, and the bottom of the rear side of the turntable is fixedly provided with a handle, so that the rotation of the transverse shaft can be controlled conveniently.

Preferably, two limiting rods are fixedly connected to the inner walls of the two sides of the sliding groove, and the two sliding plates are respectively sleeved on the outer sides of the corresponding limiting rods in a sliding mode to guide the sliding plates to move.

Preferably, the intercommunicating pore has all been seted up to one side that two slides are close to each other, and two diaphragms are slidable mounting respectively in the intercommunicating pore that corresponds, the installation and the removal of the diaphragm of being convenient for.

Preferably, the front side and the rear side of the top of the fixing plate are respectively provided with a positioning hole, and the two worms are respectively rotatably installed in the corresponding positioning holes to rotatably position the worms.

In the utility model, the pneumatic press for inserting and assembling the chair backrest is characterized in that the transverse shaft is controlled to rotate by two hand grips, the transverse shaft drives the worm positioned at the rear side to rotate through transmission between two bevel gears, the worm positioned at the rear side drives the first gear positioned at the rear side to rotate, the first gear positioned at the rear side drives the second gear to rotate, the second gear drives the first gear positioned at the front side to rotate, the first gear positioned at the front side drives the worm positioned at the front side to rotate, the two worms respectively drive the corresponding worm gears to rotate, the two worm gears respectively drive the corresponding transmission gears to rotate, the two transmission gears respectively drive the connecting plate to do lifting motion through meshing with the corresponding racks, the connecting plate drives the two transverse plates to do lifting motion through matching of two connecting grooves and the corresponding transverse plates, and the two transverse plates drive the two supporting plates to do lifting motion, the two supporting plates drive the two top plates and the two cylinders to do lifting motion, so that the height of the cylinders is adjusted according to use requirements, the up-and-down motion range of the pressing rod is enlarged, and the use is facilitated;

according to the pneumatic press for inserting and assembling the chair backrest, the screw rod is driven to rotate through the rotary knob, the screw rod moves to one side far away from or close to each other through the two sliding plates matched with the threads of the two sliding plates, so that the relative distance between the two sliding plates can be adjusted, and the relative distance between the two cylinders can be adjusted to adapt to processing of different chair sizes;

the adjustable chair is reasonable in structural design, the height of the air cylinder can be adjusted according to use requirements, the up-and-down movement range of the pressure rod is enlarged, the relative distance between the two air cylinders can be adjusted to adapt to processing of different chair sizes, the use is facilitated, and the reliability is high.

Drawings

Fig. 1 is a schematic structural view of a pneumatic press for inserting and assembling a chair backrest according to the present invention;

FIG. 2 is a schematic structural view of a section A-A of a pneumatic press for inserting and assembling a backrest of a chair according to the present invention;

fig. 3 is a schematic structural diagram of a part B of a pneumatic press for inserting and assembling a chair backrest according to the present invention.

In the figure: 1. a base; 2. a cylinder; 3. a pressure lever; 4. a chute; 5. a slide plate; 6. a vertical groove; 7. a support plate; 8. a screw rod; 9. a transverse plate; 10. a vertical axis; 11. a connecting plate; 12. connecting grooves; 13. a rack; 14. a fixing plate; 15. a vertical plate; 16. a transmission gear; 17. a worm gear; 18. a worm; 19. a first gear; 20. a second gear; 21. a bevel gear; 22. mounting a plate; 23. a horizontal axis; 24. a handle; 25. a limiting rod; 26. a communicating hole; 27. a top plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a pneumatic press for inserting and assembling a chair backrest comprises a base 1, two sliding grooves 4 are formed in one side of the top of the base 1, sliding plates 5 are slidably mounted in the two sliding grooves 4, vertical grooves 6 are formed in the tops of the two sliding plates 5, supporting plates 7 are slidably mounted in the two vertical grooves 6, a top plate 27 is fixedly mounted at the tops of the two supporting plates 7, an air cylinder 2 is fixedly mounted at one side of the bottom of the top plate 27, a pressing plate is fixedly connected to an output shaft of the air cylinder 2, a pressing rod 3 is fixedly mounted at one side of the bottom of the pressing plate, transverse plates 9 are fixedly mounted at the sides, close to each other, of the two supporting plates 7, the top end of a vertical shaft 10 is fixedly connected to the top of the base 1, a connecting plate 11 is slidably sleeved outside the vertical shaft 10, connecting grooves 12 are formed in the front and rear sides of the connecting plate 11, the two transverse plates 9 are respectively slidably connected with the corresponding connecting grooves 12, and one end of a rack 13 is fixedly connected to the front and rear sides of the bottom of the connecting plate 11, the outer side of the vertical shaft 10 is fixedly sleeved with a fixing plate 14, the front side and the rear side of the top of the fixing plate 14 are respectively and fixedly provided with a vertical plate 15, one side of each vertical plate 15 is respectively and rotatably provided with a transmission gear 16, the two transmission gears 16 are respectively meshed with corresponding racks 13, one side of each transmission gear 16 is respectively and fixedly provided with a worm wheel 17, the top of the base 1 is rotatably provided with two worms 18, the two worms 18 are respectively and rotatably meshed with the corresponding worm wheels 17, the two worms 18 are respectively and fixedly provided with first gears 19, the outer side of the vertical shaft 10 is rotatably sleeved with a second gear 20, the two first gears 19 are respectively meshed with the second gears 20, the top of the base 1 is fixedly provided with two mounting plates 22, one side of the two mounting plates 22 close to each other is rotatably provided with the same transverse shaft 23, the front end of the transverse shaft 23 and the worm 18 positioned at the rear side are respectively and fixedly provided with bevel gears 21, and the two bevel gears 21 are meshed.

According to the utility model, mounting holes are formed in the front side and the rear side of the base 1, the same screw rod 8 is rotatably mounted in the two mounting holes, two external threads with opposite rotation directions are arranged on the outer side of the screw rod 8, the two sliding plates 5 are sleeved on the outer side of the screw rod 8 in a threaded manner, and a knob is fixedly mounted at the rear end of the screw rod 8, so that the relative distance between the sliding plates 5 can be conveniently adjusted.

In the utility model, the rear end of the transverse shaft 23 is fixedly provided with the turntable, and the bottom of the rear side of the turntable is fixedly provided with the handle 24, so that the rotation of the transverse shaft 23 can be controlled conveniently.

In the utility model, two limiting rods 25 are fixedly connected to the inner walls of two sides of the sliding chute 4, and the two sliding plates 5 are respectively sleeved outside the corresponding limiting rods 25 in a sliding manner to guide the sliding plates 5 to move.

In the utility model, the communicating holes 26 are formed on the sides of the two sliding plates 5 close to each other, and the two transverse plates 9 are respectively slidably mounted in the corresponding communicating holes 26, so that the transverse plates 9 can be conveniently mounted and moved.

In the utility model, positioning holes are respectively formed in the front side and the rear side of the top of the fixing plate 14, and the two worms 18 are respectively rotatably mounted in the corresponding positioning holes to rotatably position the worms 18.

In the utility model, when in use, the transverse shaft 23 is controlled to rotate by the two hand-held handles 24, the transverse shaft 23 drives the worm 18 positioned at the rear side to rotate through the transmission between the two bevel gears 21, the worm 18 positioned at the rear side drives the first gear 19 positioned at the rear side to rotate, the first gear 19 positioned at the rear side drives the second gear 20 to rotate, the second gear 20 drives the first gear 19 positioned at the front side to rotate, the first gear 19 positioned at the front side drives the worm 18 positioned at the front side to rotate, the two worms 18 respectively drive the corresponding worm wheels 17 to rotate, the two worm wheels 17 respectively drive the corresponding transmission gears 16 to rotate, the two transmission gears 16 respectively drive the connecting plate 11 to do lifting motion through the meshing with the corresponding racks 13, the connecting plate 11 drives the two transverse plates 9 to do lifting motion through the matching of the two connecting grooves 12 and the corresponding transverse plates 9, the two transverse plates 9 drive the two supporting plates 7 to do lifting motion, two backup pads 7 drive two roof 27 and two cylinders 2 and are elevating movement, thereby highly adjust cylinder 2 according to the use needs, promote depression bar 3 up-and-down motion's scope, do benefit to the use, then drive lead screw 8 through rotatory knob and rotate, two slides 5 that lead screw 8 was beaten through the screw-thread fit with two slides 5 are to keeping away from each other or the one side motion that is close to each other, in order to realize the regulation to two slides 5 relative distance, thereby adjust two cylinders 2's relative distance, in order to adapt to the processing of different chair sizes.

Claims

1. The pneumatic press for inserting and assembling the chair backrest comprises a base (1) and is characterized in that two sliding grooves (4) are formed in one side of the top of the base (1), sliding plates (5) are arranged in the two sliding grooves (4) in a sliding manner, vertical grooves (6) are formed in the tops of the two sliding plates (5), supporting plates (7) are arranged in the two vertical grooves (6) in a sliding manner, top plates (27) are fixedly arranged at the tops of the two supporting plates (7), an air cylinder (2) is fixedly arranged at one side of the bottom of each top plate (27), a pressing plate is fixedly connected onto an output shaft of the air cylinder (2), a pressing rod (3) is fixedly arranged at one side of the bottom of each pressing plate, transverse plates (9) are fixedly arranged at one sides, close to each other, of the two supporting plates (7), a connecting plate (11) is sleeved on the outer side of each vertical shaft (10) in a sliding manner, connecting grooves (12) are formed in the front side and the rear side of a connecting plate (11), two transverse plates (9) are respectively in sliding connection with the corresponding connecting grooves (12), one ends of racks (13) are fixedly connected to the front side and the rear side of the bottom of the connecting plate (11), a fixing plate (14) is fixedly sleeved on the outer side of a vertical shaft (10), vertical plates (15) are fixedly mounted on the front side and the rear side of the top of the fixing plate (14), transmission gears (16) are rotatably mounted on one sides of the two vertical plates (15), the two transmission gears (16) are respectively meshed with the corresponding racks (13), worm wheels (17) are fixedly mounted on one sides of the two transmission gears (16), two worms (18) are rotatably mounted on the top of a base (1), the two worms (18) are respectively meshed with the corresponding worm wheels (17), first gears (19) are fixedly mounted on the two worms (18), and a second gear (20) is rotatably sleeved on the outer side of the vertical shaft (10), two first gears (19) all mesh with second gear (20) mutually, base (1) top fixed mounting has two mounting panels (22) one side rotation that two mounting panels (22) are close to each other to install same cross axle (23), and equal fixed mounting has bevel gear (21) on cross axle (23) front end and the worm (18) that are located the rear side, and two bevel gear (21) mesh mutually.

2. The pneumatic press for inserting and assembling the chair backrest according to claim 1, wherein the base (1) is provided with mounting holes at the front side and the rear side, the same screw rod (8) is rotatably mounted in the two mounting holes, two external threads with opposite rotation directions are arranged on the outer side of the screw rod (8), the two sliding plates (5) are respectively sleeved on the outer side of the screw rod (8) in a threaded manner, and the knob is fixedly mounted at the rear end of the screw rod (8).

3. The pneumatic press for the insertion and assembly of the backrest of a chair as claimed in claim 1, wherein the rear end of the transverse shaft (23) is fixedly provided with a turntable, and the bottom of the rear side of the turntable is fixedly provided with a handle (24).

4. The pneumatic press for inserting and assembling the backrest of the chair according to claim 1, wherein two limiting rods (25) are fixedly connected to the inner walls of the two sides of the sliding groove (4), and the two sliding plates (5) are respectively sleeved on the outer sides of the corresponding limiting rods (25) in a sliding manner.

5. The pneumatic press for inserting and assembling the backrest of the chair as claimed in claim 1, wherein the two sliding plates (5) are provided with communication holes (26) at the sides close to each other, and the two transverse plates (9) are slidably mounted in the corresponding communication holes (26) respectively.

6. The pneumatic press for inserting and assembling the backrest of the chair as claimed in claim 1, wherein the fixing plate (14) is provided with positioning holes at the front and rear sides of the top thereof, and the two worms (18) are rotatably mounted in the corresponding positioning holes respectively.