Stepless height adjusting mechanism for air bag suspension seat

Abstract

The utility model relates to the field of seat height adjusting devices, in particular to an air bag suspension seat stepless height adjusting mechanism which comprises an upper sliding groove frame assembly, an X arm assembly, a lower sliding groove frame assembly, an air bag, a height valve assembly and a height adjusting switch. The X-arm assembly comprises an outer X-arm welding assembly and an inner X-arm welding assembly, the outer X-arm welding assembly and the inner X-arm welding assembly are rotationally connected through a middle transverse pipe fixed to the inner X-arm welding assembly, and a transverse pipe at the rear end of the outer X-arm welding assembly is hinged to the upper sliding groove frame assembly. According to the stepless height adjusting mechanism for the air bag suspension seat, the height can be adjusted in a stepless mode, the height of the posture of a driver and passengers can be adjusted to any position, the air pressure of an air bag is directly adjusted and controlled to achieve height adjustment, compared with a step adjusting scheme, the risk that gear adjustment is not sensitive does not exist, and the structure is simple. The structure is simple and compact, and the arrangement is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of seat height adjusting device, concretely is a kind of gasbag suspension seat stepless height adjusting mechanism. BACKGROUND

[0002] Prior art scheme has the following defects:

[0003] Existing suspension seat height adjusting mechanism can be divided into two kinds:

[0004] 1. Handle pull wire structure: by handle with gear drive pull wire, so that height valve is kept at different positions, realizes height adjustment. This kind of structure is step adjustment, height can only be adjusted to set position. In addition, the height adjustment gear stroke demand of this kind of structure is larger, and small stroke is prone to problems such as adjustment gear insensitive and shock stroke too small, uncomfortable and the like.

[0005] 2. Pneumatic height adjustment: height valve is unlocked and gasbag is inflated and deflated by pneumatic switch control, so as to realize height control. The height valve of this kind of structure controls the position of height valve by lock jaw and tooth plate, and also cannot be separated from the category of step adjustment.

[0006] Therefore, we propose a kind of gasbag suspension seat stepless height adjusting mechanism to solve the above problems. INVENTION CONTENTS

[0007] To solve the above technical problems, the utility model provides a kind of gasbag suspension seat stepless height adjusting mechanism.

[0008] The utility model provides a kind of gasbag suspension seat stepless height adjusting mechanism, including upper slide groove frame assembly, X arm assembly, lower slide groove frame assembly, gasbag, height valve assembly and height adjusting switch;

[0009] The X arm assembly includes outer X arm welded assembly and inner X arm welded assembly, and the outer X arm welded assembly and the inner X arm welded assembly are rotatably connected by the intermediate cross pipe fixed on the inner X arm welded assembly;

[0010] The rear end cross pipe of the outer X arm welded assembly is hinged with the upper slide groove frame assembly, and the front end cross pipe of the outer X arm welded assembly is slidably connected with the lower slide groove frame assembly;

[0011] The rear end cross pipe of the inner X arm welded assembly is hinged with the lower slide groove frame assembly, and the front end cross pipe of the inner X arm welded assembly is slidably connected with the upper slide groove frame assembly;

[0012] The inner X arm welded assembly and lower slide groove frame assembly are respectively fixed with gasbag upper support and gasbag lower support, and the gasbag upper support and gasbag lower support are installed with gasbag;

[0013] One end of the height valve assembly is rotatably connected with the front end transverse pipe of the outer X-arm welded assembly of the X-arm assembly, and the other end is rotatably connected with the middle transverse pipe of the inner X-arm welded assembly of the X-arm assembly, one end of the height valve assembly is provided with a butterfly valve, a cam is arranged on the butterfly piece of the butterfly valve, and a gear is arranged on the side wall of the cam;

[0014] A gear rotating shaft is welded on the inner X-arm welded assembly, a gear is rotatably connected with the gear rotating shaft, and the gear is rotatably connected with the gear teeth on the side wall of the cam, and a cylinder is further arranged on the inner X-arm welded assembly, and the cylinder is fixedly connected with the upper support of the air bag on the inner X-arm welded assembly through a rivet;

[0015] The side wall of the gear is integrally provided with a sleeve part, a torsion spring is assembled on the sleeve part, one end of the torsion spring is clamped on the metal plate of the inner X-arm welded assembly, and the other end is clamped in the waist-shaped groove of the cylinder, and the initial inner diameter of the torsion spring is smaller than the outer diameter of the gear, so that the gear can be fixed after being assembled on the gear.

[0016] The height adjusting switch is connected with the main gas source, the height valve assembly, the air bag and the cylinder through the air pipe.

[0017] Preferably, the gear rotating shaft is provided with an annular groove, and an E-shaped clamp spring is assembled in the annular groove.

[0018] Preferably, the upper sliding groove frame assembly is formed by welding a U-shaped frame assembly, a rear end support, a first rotating shaft plastic sleeve and a bolt fixed connection, and the rear end transverse pipe of the inner X-arm welded assembly is rotatably connected with the first rotating shaft plastic sleeve.

[0019] Preferably, the lower sliding groove frame assembly is rotatably connected by a stepped bolt through a front support, a left sliding groove and a right sliding groove, the lower support of the air bag is fixedly connected with the left sliding groove and the right sliding groove through bolts on the left and right sides, respectively, to form a fixed frame, the rear end of the left sliding groove and the right sliding groove is provided with a second rotating shaft plastic sleeve, the second rotating shaft plastic sleeve is fixedly connected with the left sliding groove and the right sliding groove through bolts, and the rear end transverse pipe of the outer X-arm welded assembly is rotatably connected with the second rotating shaft plastic sleeve.

[0020] Preferably, the height valve assembly further comprises a height valve support and a height valve fixing screw, the butterfly valve is fixedly connected with the height valve fixing screw and the height valve support, and the height valve support is rotatably connected with the front end transverse pipe of the outer X-arm welded assembly.

[0021] Preferably, the height adjusting switch is a pressurized switch or an electromagnetic valve switch.

[0022] Preferably, the connection between the height valve support and the front end transverse pipe of the outer X-arm welded assembly is in an open shape.

[0023] Preferably, the side wall of the height valve support is provided with a reinforcing rib.

[0024] Compared with the related art, the utility model provides with following beneficial effect:

[0025] 1, height infinitely adjustable, the height of the attitude of the driver and passenger can be adjusted to any position.

[0026] 2, direct regulation air bag pressure realizes height adjustment, compared with the step adjustment scheme, no gear adjustment is not sensitive, can improve the comfort.

[0027] 3, simple and compact structure, convenient arrangement. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is the whole structure schematic diagram of the utility model;

[0029] Figure 2 It is the outer X arm welded assembly structure schematic diagram of the utility model;

[0030] Figure 3 It is the inner X arm welded assembly structure schematic diagram of the utility model;

[0031] Figure 4 It is the upper chute frame assembly structure schematic diagram of the utility model;

[0032] Figure 5 It is the lower chute frame assembly structure schematic diagram of the utility model;

[0033] Figure 6 It is the height valve assembly structure schematic diagram of the utility model;

[0034] Figure 7 It is the side structure schematic diagram of the utility model;

[0035] Figure 8 It is the structure schematic diagram of the gear and torsion spring of the utility model.

[0036] Marked number in the drawing: 1, upper chute frame assembly;2, X arm assembly;3, lower chute frame assembly;4, air bag;5, height valve assembly;6, height adjustment switch;7, outer X arm welded assembly;8, inner X arm welded assembly;9, air cylinder;11, torsion spring;12, gear;13, E-shaped clasp spring;14, gear rotating shaft;15, air bag upper support;16, U-shaped frame welded assembly;17, rear end support;18a, first rotating shaft plastic sleeve;18b, second rotating shaft plastic sleeve;19, bolt;20, front support;21, left chute;22, right chute;23, step bolt;25, air bag lower support;26, height valve support;27, butterfly valve;28, height valve fixing screw;29, butterfly piece;30, cam. DETAILED DESCRIPTION

[0037] The utility model will be further explained in connection with the drawings and embodiments.

[0038] Please refer to Figures 1 to 8 A kind of air bag suspension seat stepless height adjusting mechanism, this mechanism is mainly by upper slide groove frame assembly 1, X arm assembly 2, lower slide groove frame assembly 3, air bag 4, height valve assembly 5 and height adjusting switch 6 composition, each component is realized high efficiency operation by precise connection.

[0039] In X arm assembly 2, outer X arm welded assembly 7 and inner X arm welded assembly 8 are formed rotating connection by middle cross pipe fixed on inner X arm welded assembly 8, this design allows the relative rotation between two components.The rear end cross pipe of outer X arm welded assembly 7 is hinged with upper slide groove frame assembly 1, and front end cross pipe is slidably connected with lower slide groove frame assembly 3;Relatively, the rear end cross pipe of inner X arm welded assembly 8 is hinged with lower slide groove frame assembly 3, and front end cross pipe is slidably connected with upper slide groove frame assembly 1.This cross type connection mode provides stable support and smooth lifting function for suspension mechanism.

[0040] In order to control the height of suspension mechanism, air bag upper support 15 and air bag lower support 25 are fixed on inner X arm welded assembly 8 and lower slide groove frame assembly 3 respectively, and air bag 4 is installed between the two.By charging and discharging in air bag 4, the rising and falling of suspension mechanism can be accurately controlled, and stepless height adjustment is realized.

[0041] As the key component of adjusting mechanism, height valve assembly 5 is rotatably connected with the front end cross pipe of outer X arm welded assembly 7 at one end, and rotatably connected with the middle cross pipe of inner X arm welded assembly 8 at the other end.A butterfly valve 27 is arranged at one end of height valve assembly 5, a cam 30 is arranged on the butterfly piece 29 of butterfly valve 27, and the side wall of cam 30 is provided with gear teeth, which are meshed and connected with gear 12 on inner X arm welded assembly 8.Gear 12 is rotatably installed on gear shaft 14, and gear shaft 14 is assembled on inner X arm welded assembly 8, and sleeve part is integrally arranged on one side wall of gear 12, torsional spring 11 is assembled on sleeve part, one end of torsional spring 11 is clamped on the sheet metal of inner X arm welded assembly 8, and the other end is clamped in the waist-shaped groove of air cylinder 9, the initial inner diameter of which is slightly smaller than the outer diameter of gear 12, so that gear 12 can be clamped after assembly, and kept fixed.

[0042] In order to prevent gear 12 from coming off gear shaft 14, annular groove is arranged on gear shaft 14, and E-shaped clamp spring 13 is assembled in the annular groove.In addition, height adjusting switch 6 is connected with main gas source, height valve assembly 5, air bag 4 and air cylinder 9 through air pipe, realizing remote control of the whole adjusting mechanism.Air cylinder 9 is fixedly connected with air bag upper support 15 on inner X arm welded assembly 8 through rivet 10.

[0043] The upper chute frame assembly 1 is formed by a U-shaped frame welding assembly 16, a rear end support 17, a first rotating shaft plastic sleeve 18a and a bolt 19 fixed connection, which provides a rotating connection point for the rear end horizontal tube of the inner X-arm welding assembly 8. The lower chute frame assembly 3 is formed by a front support 20, a left chute 21 and a right chute 22 through a stepped bolt 23 rotating connection. The air bag lower support 25 is fixed on the left chute 21 and the right chute 22 through the bolt 19, forming a solid fixed frame. The rear end horizontal tube of the outer X-arm welding assembly 7 is rotatingly connected with the second rotating shaft plastic sleeve 18b at the rear end of the left chute 21 and the right chute 22.

[0044] The height valve assembly 5 further comprises a height valve support 26, a height valve fixing screw 28 and other components. The butterfly valve 27 is fixedly connected through the height valve fixing screw 28 and the height valve support 26, and the height valve support 26 is rotatingly connected with the front end horizontal tube of the outer X-arm welding assembly 7. In order to facilitate installation and disassembly, the connection between the height valve support 26 and the front end horizontal tube of the outer X-arm welding assembly 7 is designed as an open type, and a reinforcing rib is arranged on the side wall of the height valve support 26 to improve the strength thereof.

[0045] In actual operation, the lower end of the height adjusting switch 6 is pressed, and the compressed air in the main air source enters the air cylinder 9 through the height adjusting switch 6, pushing the torsional spring 11 to rotate counterclockwise. When the inner diameter of the torsional spring 11 becomes larger than the outer diameter of the gear 12, the gear 12 can rotate freely. At the same time, the air bag 4 is communicated with the atmosphere through the height adjusting switch 6, and the gas in the air bag is discharged, resulting in a decrease in air pressure. Under the action of gravity, the inner X-arm welding assembly 8 rotates counterclockwise, thereby adjusting the suspension mechanism to descend. The height valve assembly 5 also rotates to the corresponding position. When the height adjusting switch 6 is released, the air pressure in the air cylinder 9 is lost, the torsional spring 11 rotates clockwise and again clamps the gear 12, so that the gear 12 cannot rotate. At this time, the position of the cam 30 is also fixed, and the suspension mechanism reaches an equilibrium state at the new position.

[0046] In actual operation, the lower end of the height adjusting switch 6 is pressed, and the compressed air in the main air source enters the air cylinder 9 through the height adjusting switch 6, pushing the torsional spring 11 to rotate counterclockwise. When the inner diameter of the torsional spring 11 becomes larger than the outer diameter of the gear 12, the gear 12 can rotate freely. At the same time, the air bag 4 is communicated with the atmosphere through the height adjusting switch 6, and the gas in the air bag is discharged, resulting in a decrease in air pressure. Under the action of gravity, the inner X-arm welding assembly 8 rotates counterclockwise, thereby adjusting the suspension mechanism to descend. The height valve assembly 5 also rotates to the corresponding position. When the height adjusting switch 6 is released, the air pressure in the air cylinder 9 is lost, the torsional spring 11 rotates clockwise and again clamps the gear 12, so that the gear 12 cannot rotate. At this time, the position of the cam 30 is also fixed, and the suspension mechanism reaches an equilibrium state at the new position.

[0047] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. An air cell suspension seat infinitely height adjusting mechanism characterized by, It comprises an upper chute frame assembly (1), an X-arm assembly (2), a lower chute frame assembly (3), an air bag (4), a height valve assembly (5) and a height adjustment switch (6); The X-arm assembly (2) comprises an outer X-arm welded assembly (7) and an inner X-arm welded assembly (8), and the outer X-arm welded assembly (7) and the inner X-arm welded assembly (8) are rotatably connected through an intermediate cross pipe fixed on the inner X-arm welded assembly (8); The rear end cross pipe of the outer X-arm welded assembly (7) is hingedly connected with the upper chute frame assembly (1), and the front end cross pipe of the outer X-arm welded assembly (7) is slidably connected with the lower chute frame assembly (3); The rear end cross pipe of the inner X-arm welded assembly (8) is hingedly connected with the lower chute frame assembly (3), and the front end cross pipe of the inner X-arm welded assembly (8) is slidably connected with the upper chute frame assembly (1); The inner X-arm welded assembly (8) and the lower chute frame assembly (3) are respectively fixed with an air bag upper support (15) and an air bag lower support (25), and the air bag upper support (15) and the air bag lower support (25) are mounted with the air bag (4) therebetween; One end of the height valve assembly (5) is rotatably connected with the front end cross pipe of the outer X-arm welded assembly (7) of the X-arm assembly (2), and the other end is rotatably connected with the intermediate cross pipe of the inner X-arm welded assembly (8) of the X-arm assembly (2), one end of the height valve assembly (5) is provided with a butterfly valve (27), the butterfly piece (29) of the butterfly valve (27) is provided with a cam (30), and the side wall of the cam (30) is provided with a gear tooth; The inner X-arm welded assembly (8) is welded with a gear shaft (14), the gear shaft (14) is rotatably connected with a gear (12), the gear (12) is meshingly connected with the gear tooth of the side wall of the cam (30), and the inner X-arm welded assembly (8) is further provided with a gas cylinder (9), and the gas cylinder (9) is fixedly connected with the air bag upper support (15) on the inner X-arm welded assembly (8) through a rivet (10); One side wall of the gear (12) is integrally provided with a sleeve part, the sleeve part is assembled with a torsion spring (11), one end of the torsion spring (11) is clamped on the metal plate of the inner X-arm welded assembly (8), and the other end is clamped in the waist-shaped groove of the gas cylinder (9), the initial inner diameter of the torsion spring (11) is smaller than the outer diameter of the gear (12), and after being assembled on the gear (12), the gear (12) can be fixed by the torsion spring (11). The height adjustment switch (6) is connected with a main gas source, the height valve assembly (5), the air bag (4) and the gas cylinder (9) through gas pipes.

2. The airbag suspension seat infinitely variable height adjustment mechanism according to claim 1, characterized by, The gear shaft (14) is provided with an annular groove, and the annular groove is assembled with an E-shaped clamp spring (13).

3. The airbag suspension seat infinitely variable height adjusting mechanism according to claim 1, characterized by, The upper chute frame assembly (1) is fixedly connected by a U-shaped frame welded assembly (16), a rear end support (17), a first rotating shaft plastic sleeve (18a) and a bolt (19), and the rear end cross pipe of the inner X-arm welded assembly (8) is rotatably connected with the first rotating shaft plastic sleeve (18a).

4. The airbag suspension seat infinitely variable height adjusting mechanism according to claim 1, characterized by The lower chute frame assembly (3) is rotatably connected by a step bolt (23) through a front support (20), a left chute (21) and a right chute (22), the air bag lower support (25) is fixedly connected with the left chute (21) and the right chute (22) through a bolt (19) on the left and right sides, forming a fixed frame, the rear end of the left chute (21) and the right chute (22) is provided with a second rotating shaft plastic sleeve (18b), the second rotating shaft plastic sleeve (18b) is fixedly connected with the left chute (21) and the right chute (22) through a bolt (19), and the rear end horizontal pipe of the outer X-arm welded assembly (7) is rotatably connected with the second rotating shaft plastic sleeve (18b).

5. The airbag suspension seat infinitely variable height adjusting mechanism according to claim 3, characterized by The height valve assembly (5) further comprises a height valve support (26) and a height valve fixing screw (28), wherein the butterfly valve (27) is fixedly connected through the height valve fixing screw (28) and the height valve support (26), and the height valve support (26) is rotatably connected with the front end horizontal pipe of the outer X-arm welded assembly (7).

6. The airbag suspension seat infinitely variable height adjustment mechanism according to claim 1, characterized by, The height adjusting switch (6) is a pressurized switch or an electromagnetic valve switch.

7. The airbag suspension seat infinitely variable height adjusting mechanism according to claim 5, characterized by The connection between the height valve support (26) and the front end horizontal pipe of the outer X-arm welded assembly (7) is in an open shape.

8. The airbag suspension seat infinitely variable height adjustment mechanism according to claim 5, characterized by, The side wall of the height valve support (26) is provided with a reinforcing rib.

Images