Air spring piston and air spring

Abstract

The utility model discloses an air spring piston and an air spring. The air spring piston comprises a buckling section, a middle section and a tail section which are detachably connected in sequence. According to the air spring piston, an air spring piston of an integrated structure in the prior art is arranged to be of a three-section or multi-section structure, the air spring piston can be matched with air springs of different structures, and the air spring piston of the corresponding size is assembled according to the air springs of different sizes or models in the earlier stage adjusting or assembling process.

Description

Technical Field

[0001] This utility model relates to the field of air spring technology, and more specifically to an air spring piston and an air spring. Background Technology

[0002] As people's demands for vehicle comfort increase, more passenger cars are equipped with multi-chamber air springs. The undulating piston, as an important component of the air spring, is discussed in [reference needed]. Figure 1 Currently, the undulating piston in existing technology is a single piece with a relatively simple structure. One type of air spring can only be matched with one type of undulating piston. The wide variety of air springs leads to a wide variety of undulating pistons, which accounts for a large portion of the design and development costs in air spring design and development. Utility Model Content

[0003] The technical problem to be solved by this invention is how to adapt to air springs of different sizes.

[0004] This utility model solves the above-mentioned technical problems through the following technical means: an air spring piston, comprising a sequentially detachable and connected pressing section, an intermediate section, and a tail section.

[0005] As a preferred technical solution, the two ends of the intermediate section are threadedly connected to the crimping section and the tail section, respectively.

[0006] As a preferred technical solution, the intermediate section includes a first connecting section and a second connecting section. One end of the first connecting section is detachably connected to the clamping section, and the other end is detachably connected to one end of the second connecting section. The other end of the second connecting section is detachably connected to the tail section.

[0007] As a preferred technical solution, the intermediate segment includes multiple connecting segments, and the multiple connecting segments are detachably connected.

[0008] As a preferred technical solution, the end of the middle section connected to the tail section is provided with an external thread or an internal thread, the end of the tail section connected to the middle section is provided with an internal thread or an external thread that matches it, the end of the middle section connected to the crimping section is provided with an external thread or an internal thread, and the end of the crimping section connected to the middle section is provided with an internal thread or an external thread that matches it.

[0009] As a preferred technical solution, the crimping section, the middle section, and the tail section are coaxial.

[0010] As a preferred technical solution, the connection end between the crimping section and the middle section, and the connection end between the middle section and the tail section are all provided with sealing rings or sealant.

[0011] As a preferred technical solution, the wall thickness and / or diameter of the crimping section, the middle section, and the tail section are the same.

[0012] As a preferred technical solution, the first connecting segment and the crimping segment have the same diameter, the second connecting segment and the tail segment have the same diameter, and the diameter of the first connecting segment is greater than the diameter of the second connecting segment.

[0013] An air spring, comprising any of the above-mentioned air spring pistons.

[0014] The beneficial effects of this utility model are as follows:

[0015] (1) In this utility model, the air spring piston with an integral structure in the prior art is set as a three-section or multi-section structure so that it can be adapted to air springs with different structures. During the early adjustment or assembly, the corresponding size air spring piston is assembled according to the air springs of different sizes or models.

[0016] (2) In this utility model, through the three-section or multi-section structural design, when repairing and replacing vulnerable parts, only the corresponding section of the structural parts need to be replaced, without replacing all structural parts, thus reducing costs. Attached Figure Description

[0017] Figure 1 A schematic diagram of the undulating piston structure is provided for the background technology of this utility model;

[0018] Figure 2 This is a schematic diagram of the piston cross-sectional structure provided in Embodiment 1 of this utility model;

[0019] Figure 3 This is a schematic diagram of the piston explosion structure provided in Embodiment 1 of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the first connecting segment and the second connecting segment provided in Embodiment 1 of this utility model;

[0021] Reference numerals: 1. Crimping section; 2. Intermediate section; 21. First connecting section; 22. Second connecting section; 3. Tail section; 4. Internal thread; 5. External thread. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Example 1

[0024] See Figure 2An air spring piston includes a clamping section 1, an intermediate section 2, and a tail section 3 connected in sequence. The clamping section 1 is used to clamp the bladder of the air spring. The intermediate section 2 is used to connect the clamping section 1 and the tail section 3. The tail section 3 is connected to a shock absorber. The intermediate section 2 and the tail section 3 both provide support for the clamping section 1. The clamping section 1 and the intermediate section 2, and the intermediate section 2 and the tail section 3 are detachably fixed connections.

[0025] The existing one-piece air spring piston is modified into a three- or multi-segment structure, which can be adapted to air springs of different structures. During the initial adjustment or assembly, the corresponding size air spring piston is assembled according to the air spring of different size or model. Specifically, the corresponding air spring piston is assembled according to different air springs. At the same time, compared with the existing undulating piston structure, even if the crimping section 1 or the tail section 3 is scrapped, the middle section 2 and the tail section 3 or the crimping section 1 and the middle section 2 can be retained, which reduces the development cost of the undulating piston.

[0026] In this embodiment, the detachable connection is a threaded connection, but it can also be other forms of connection such as snap-fit ​​or plug-in. Referring to the figure, the crimping section 1 is threadedly connected to the middle section 2, and the middle section 2 is threadedly connected to the tail section 3. One of the ends of the crimping section 1 connected to the working section 2 and the middle section 2 connected to the crimping section 1 is provided with an internal thread 4, and the other is provided with an external thread 5 that matches the internal thread 4. One of the ends of the middle section 2 connected to the tail section 3 and the tail section 3 connected to the middle section 2 is provided with an internal thread 4, and the other is provided with an external thread 5 that matches the internal thread 4. In this embodiment, it is taken that the middle section 2 is provided with an internal thread 4 at one end of the crimping section 1 and the tail section 3, and the ends of the crimping section 1 connected to the middle section 2 and the tail section 3 connected to the middle section 2 are provided with external threads 5.

[0027] See Figure 3 The connection ends of the crimping section 1 and the middle section 2, and the connection ends of the middle section 2 and the tail section 3 are all provided with seals. The seals refer to sealing rings or sealant. In this embodiment, if a sealing ring is provided, it is an O-ring and is provided at the threaded joints of the crimping section 1 and the middle section 2, and the middle section 2 and the tail section 3. The internal thread 4 and the external thread 5 are connected to form a seal. If sealant is used, it is thread sealant. Thread sealant is filled at the internal thread 4 or the external thread 5 during threaded connection, and a seal is formed after the internal thread 4 and the external thread 5 are connected.

[0028] See Figure 2 , Figure 4The crimping section 1, the intermediate section 2, and the tail section 3 can all be machined into standard parts with different outer diameters and lengths by turning or other machining methods. The intermediate section 2 includes a first connecting section 21 and a second connecting section 22, wherein the first connecting section 21 and the second connecting section 22 are also detachably fixed by threads. The thread setting method is the same as the thread connection method between the crimping section 1 and the intermediate section 2 or between the intermediate section 2 and the tail section 3, which will not be described again here. In this embodiment, the tail section 3 can be a straight section or a flared type, both of which can be matched with the shock absorber spring disc interface in the prior art. The size can be adapted and adjusted according to different shock absorber spring disc structures.

[0029] It should be noted that the materials of the crimping section 1, the middle section 2, and the tail section 3 are metal or plastic, and the wall thickness of the crimping section 1, the middle section 2, and the tail section 3 is the same, but the wall thickness can also be set to be different; in this embodiment, the axes of the crimping section 1, the middle section 2, and the tail section 3 are coaxial, but they can also be set to be non-coaxial. The diameter of the crimping section 1 is the same as that of the middle section 2, and the diameter of the middle section 2 is the same as that of the tail section 3. Alternatively, the diameter of the first connecting section 21 of the crimping section 1 and the middle section 2 is the same, and the diameter of the second connecting section 22 is the same as that of the tail section 3. The diameter of the first connecting section 21 is larger than the diameter of the second connecting section 22.

[0030] Example 2

[0031] The difference between this embodiment and Embodiment 1 is that this embodiment provides an air spring that includes the air spring piston of Embodiment 1.

[0032] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An air spring piston, characterized in that, It includes a detachable and connected crimping section, a middle section, and a tail section. The middle section includes a first connecting section and a second connecting section. One end of the first connecting section is detachably connected to the crimping section, and the other end is detachably connected to one end of the second connecting section. The other end of the second connecting section is detachably connected to the tail section.

2. An air spring piston according to claim 1, characterized in that, The two ends of the intermediate section are threadedly connected to the crimping section and the tail section, respectively.

3. An air spring piston according to claim 1, characterized in that, The intermediate segment includes multiple connecting segments, which are detachably connected.

4. An air spring piston according to claim 2, characterized in that, The end of the middle section connected to the tail section is provided with an external thread or an internal thread, the end of the tail section connected to the middle section is provided with an internal thread or an external thread that matches it, the end of the middle section connected to the crimping section is provided with an external thread or an internal thread, and the end of the crimping section connected to the middle section is provided with an internal thread or an external thread that matches it.

5. An air spring piston according to claim 1, characterized in that, The crimping section, middle section, and tail section are coaxial.

6. An air spring piston according to claim 1, characterized in that, The connection ends between the crimping section and the middle section, and the connection ends between the middle section and the tail section, are all provided with sealing rings or sealant.

7. An air spring piston according to claim 1, characterized in that, The wall thickness and / or diameter of the crimping section, the middle section, and the tail section are the same.

8. An air spring piston according to claim 1, characterized in that, The first connecting segment has the same diameter as the crimping segment, the second connecting segment has the same diameter as the tail segment, and the diameter of the first connecting segment is greater than the diameter of the second connecting segment.

9. An air spring, characterized in that, Includes the air spring piston as described in any one of claims 1-8.

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