Volume-adjustable air spring

Abstract

The utility model provides a volume-adjustable air spring, which relates to the technical field of air springs, and comprises an end head with a cavity, the lower end of the end head is connected with a guide cylinder, and a piston sliding along the axis of the end head is arranged in the guide cylinder. The outer side of the upper end of the piston and the outer side of the lower end of the end head are connected with an air bag capable of being rolled and folded and form an inflatable air cavity, the outer wall of the air bag is attached to the inner wall of the guide cylinder, a plurality of independent air chambers are arranged in the side wall of the end head, each air chamber is isolated from the air cavity through a spacer, and the air chambers can be communicated with the air cavity by puncturing the spacers; according to the air spring, the cavity can be communicated with the air chamber by puncturing the spacers between the air chamber and the cavity, the overall size of the cavity can be increased, the volume of the air spring can be adjusted by puncturing the multiple spacers, the comfort degree of the air spring can be conveniently adjusted, and cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air spring, especially a kind of air spring with adjustable volume. BACKGROUND

[0002] Vehicle air spring adjustment is mainly to adjust the stiffness performance by adjusting the size of gas volume and piston angle, the air cavity of air spring can change the comfort and lifting height of air spring, and the angle of piston changes the activity process of air spring, i.e. the length of activity path, the change of the volume of air cavity needs to continuously produce suitable cavity volume to adjust, and overall, mold test is needed, the activity process of air spring is adjusted by changing the angle of piston, and it needs to be debugged by making multiple angles, the overall manufacturing cycle is longer, the cost is high, and the efficiency of debugging is influenced, and the air spring cannot be adjusted quickly and conveniently. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problems to provide a kind of air spring with adjustable volume to solve the problems of high cost and high difficulty of air spring adjustment.

[0004] Based on the technical problems in the background art, the utility model provides an air spring with adjustable volume, comprising a head with a cavity, a guide cylinder is connected to the lower end of the head, a piston is arranged in the guide cylinder and slides along the axis of the head, a gas bag is connected to the outer side of the upper end of the piston and the outer side of the lower end of the head and forms an inflatable cavity, the outer wall of the gas bag is attached to the inner wall of the guide cylinder, a plurality of independent air chambers are arranged in the side wall of the head, each air chamber is isolated from the cavity by a partition, and the air chamber and the cavity are communicated by piercing the partition.

[0005] Preferably, the central axis of the head is provided with an air duct communicating with the cavity, and the top end of the head is connected with an air nozzle communicating with the air duct.

[0006] Preferably, the air duct is filled with a top glue.

[0007] Preferably, a buffer block is arranged in the cavity, the buffer block has a passage at the central axis, the buffer block is connected to the head in the cavity, and the passage is communicated with one end of the air duct away from the air nozzle.

[0008] Preferably, a first clamping ring is mounted on the outer side of the lower end of the head to clamp the gas bag, and the first clamping ring and the outer side of the lower end of the head form a first clamping layer clamping one end of the gas bag.

[0009] Preferably, a second clamping ring is mounted on the outer side of the upper end of the piston to clamp the gas bag, and the second clamping ring and the outer side of the upper end of the piston form a second clamping layer clamping the other end of the gas bag.

[0010] Preferably, the piston is fixedly connected with a damper.

[0011] Preferably, the bottom of the piston is spaced from the sidewall of the damper, and the damper is sleeved with a gasket inserted into the spacing.

[0012] Compared with the prior art, the air spring with adjustable volume disclosed by the utility model has the following technical effects:

[0013] The utility model discloses a cavity and a gas chamber are communicated through the septum between the cavity and the gas chamber, the overall volume of the cavity can be increased, the volume of the air spring can be adjusted by puncturing multiple septa, the comfort of the air spring can be conveniently adjusted, and the cost is reduced. ACCURATE DRAWINGS

[0014] Figure 1 It is a sectional front view of the utility model;

[0015] Figure 2 It is a schematic view of the internal structure of the end of the utility model.

[0016] In the figure: 1, air cock; 101, cavity; 100, end; 5, guide cylinder; 6, piston; 4, air bag; 200, air cavity; 2, gas chamber; 13, septum; 102, air passage; 8, top glue; 9, buffer block; 91, channel; 3, first buckling ring; 10, second buckling ring; 7, damper; 12, gasket. DETAILED DESCRIPTION

[0017] In the utility model, unless otherwise expressly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected or can communicate with each other; can be directly connected, or can be indirectly connected through an intermediate medium; can be the communication or interaction relationship between two elements, unless otherwise expressly limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0018] In the utility model, unless otherwise expressly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0019] Embodiment

[0020] Please refer to Figures 1-2 , the utility model provides a volume adjustable air spring, including the end 100 with cavity 101, the lower extreme of end 100 is connected with guide cylinder 5, the piston 6 that slides along end 100 axis is arranged in guide cylinder 5, the outside of the upper end of piston 6 is connected with the air bag 4 that can roll up folding with the outside of the lower extreme of end 100 and forms inflatable air chamber 200, the outer wall of air bag 4 is attached to the inner wall of guide cylinder 5, the sidewall of end 100 is provided with multiple independent air chambers 2, each air chamber 2 is isolated with air chamber 200 by septum 13, and puncturing septum 13 can make air chamber 2 and air chamber 200 communicate, in the scheme, the air chamber 200 in whole air suspension is combined by the space in air bag 4 and the space in end 100, and multiple air chambers 2 are hidden in end 100, each air chamber 2 is independent of each other, air chamber 2 and the cavity 101 of end 100 have the communicating port, the communicating port is isolated by septum 13, when needing multiple air suspension to adjust, one of air chamber 2 is communicated with cavity 101 by puncturing septum 13, the size of the volume of whole air chamber 200 can be changed to adjust air spring, wherein, the volume of air chamber 200 can be changed by puncturing multiple septum 13, the air bag 4 in the application is located in the inside of guide cylinder 5, guide cylinder 5 can prevent air bag 4 from being impacted by external stone, and also can prevent air bag 4 from overexpansion, has the effect of restriction and guidance.

[0021] In specific embodiments, reference is made to Figure 1 、 Figure 2 , the central axis of end 100 is provided with air channel 102 that communicates in cavity 101, and the top end of end 100 is connected with air nozzle 1 that communicates with air channel 102, in the scheme, air nozzle 1 communicates in cavity 101, and the air inlet and air outlet of whole air suspension are communicated by air nozzle 1, which can cope with the operation of whole air suspension.

[0022] In specific embodiments, reference is made to Figure 1 、 Figure 2 , the air channel 102 is filled with top glue 8, the top glue 8 in the application is rubber, which can fill part of cavity 101 in air channel 102, and the central part has a hole, which can facilitate the gas flowing into cavity 101, in the scheme, the air nozzle 1 can also provide certain support effect, and the structural stability is increased.

[0023] In specific embodiments, reference is made to Figure 1 、 Figure 2The cavity 101 is provided with a buffer block 9, the buffer block 9 is provided with a channel 91 at the middle axis, the buffer block 9 is connected with the end head 100 in the cavity 101, and the channel 91 is communicated with the air passage 102 away from the air nozzle 1; in the scheme, the bottom end of the buffer block 9 is used for abutting against the top end of the piston 6, after the air bag 4 is deflated, the air bag 4 is folded or the piston 6 is close to the end head 100, and the buffer block 9 can provide a resisting effect for the piston 6; meanwhile, when the air suspension is used on the automobile, the deep pit may cause the piston 6 to excessively move up and down, and the buffer block 9 can alleviate the impact effect of the piston 6, so that the air suspension is prevented from being damaged.

[0024] In specific embodiments, referring to Figure 1 、 Figure 2 The first clamping ring 3 is arranged outside the lower end of the end head 100 and is used for clamping the air bag 4, and the first clamping ring 3 can form a first clamping layer for clamping one end of the air bag 4 outside the lower end of the end head 100; in the scheme, the first ring is used for sealing the air bag 4 and the end head 100, so that the air bag 4 can be fixedly connected with the end head 100.

[0025] In specific embodiments, referring to Figure 1 、 Figure 2 The second clamping ring 10 is arranged outside the upper end of the piston 6 and is used for clamping the air bag 4, and the second clamping ring 10 can form a second clamping layer for clamping the other end of the air bag 4 outside the upper end of the piston 6; in the scheme, the second ring is used for sealing the air bag 4 and the piston 6, so that the air bag 4 can be fixedly connected with the piston 6.

[0026] In specific embodiments, referring to Figure 1 、 Figure 2 The shock absorber 7 is fixedly connected in the piston 6; in the scheme, the shock absorber is used for being connected with the automobile horn or the lower swing arm.

[0027] In specific embodiments, referring to Figure 1 、 Figure 2 The bottom of the piston 6 is spaced apart from the side wall of the shock absorber 7, and the shock absorber 7 is sleeved with a gasket 12 inserted into the spacing; in the scheme, the gasket 12 is used for sealing the gap between the piston 6 and the shock absorber 7, so that liquid is prevented from entering the clamping layer and causing corrosion.

[0028] The above only describes a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. An adjustable volume air spring, characterized in that, The device includes an end (100) with a cavity (101), and a guide cylinder (5) is connected to the lower end of the end (100). A piston (6) is installed inside the guide cylinder (5) and slides along the axis of the end (100). A rollable and foldable airbag (4) is connected to the outer side of the upper end of the piston (6) and the outer side of the lower end of the end (100) to form an inflatable air chamber (200). The outer wall of the airbag (4) is attached to the inner wall of the guide cylinder (5). Multiple independent air chambers (2) are provided in the side wall of the end (100). Each air chamber (2) is isolated from the air chamber (200) by a partition (13). Puncture of the partition (13) can make the air chamber (2) and the air chamber (200) communicate.

2. The adjustable volume air spring according to claim 1, characterized in that, An air passage (102) communicating with the cavity (101) is provided on the central axis of the end (100), and an air nozzle (1) communicating with the air passage (102) is connected to the top of the end (100).

3. The adjustable volume air spring according to claim 2, characterized in that, The airway (102) is filled with top glue (8).

4. The adjustable volume air spring according to claim 2, characterized in that, A buffer block (9) is provided inside the cavity (101). The buffer block (9) has a channel (91) at its central axis. The buffer block (9) is connected to the end (100) inside the cavity (101) and the channel (91) is connected to the end of the air passage (102) away from the nozzle (1).

5. The adjustable volume air spring according to claim 1, characterized in that, A first clamping ring (3) for clamping airbag (4) is installed on the outer side of the lower end of the end (100). The first clamping ring (3) can form a first interlayer for clamping one end of airbag (4) with the outer side of the lower end of the end (100).

6. The adjustable volume air spring according to claim 1, characterized in that, A second clamping ring (10) for clamping airbag (4) is installed on the outer side of the upper end of the piston (6). The second clamping ring (10) can form a second interlayer with the outer side of the upper end of the piston (6) to clamp the other end of the airbag (4).

7. The adjustable volume air spring according to claim 6, characterized in that, A shock absorber (7) is fixedly connected inside the piston (6).

8. The adjustable volume air spring according to claim 7, characterized in that, The bottom of the piston (6) is spaced from the side wall of the damper (7), and the damper (7) is fitted with a washer (12) inserted into the space.

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