Air spring shock absorber for commercial vehicle

Abstract

The invention relates to the field of air spring shock absorbers, in particular to an air spring shock absorber for a commercial vehicle, which comprises a shell, an upper mounting seat is mounted at the top of the shell, a dust cover is mounted at the bottom of the shell, a lower mounting seat is mounted at the bottom of the dust cover, and a mounting assembly is mounted at one end of the dust cover. The end, away from the dust cover, of the installation assembly is connected with a butt joint assembly, the dust cover comprises a cover body and protruding blocks, and the protruding blocks are installed on the inner wall and the outer wall of the end face of the cover body; by twisting the connecting cylinder and the butt joint cylinder, the effect of rapidly installing the cover body can be achieved through the threaded groove between the connecting cylinder and the butt joint cylinder, the protruding blocks are installed on the cover body, and by means of cooperation of the protruding blocks and the clamping grooves, when the connecting cylinder is twisted, the connectivity between the cover body and the installing cylinder can be guaranteed; the cover body is prevented from being separated from the mounting cylinder.

Description

Technical Field

[0001] This invention relates to the field of air spring shock absorbers, and more specifically to an air spring shock absorber for commercial vehicles. Background Technology

[0002] Air spring shock absorbers are suspension systems that use compressed air as the elastic medium. By adjusting the air pressure, the height and stiffness can be dynamically adjusted. They are widely used in high-end cars, commercial vehicles, and industrial equipment. They can withstand the weight of the vehicle and buffer road impacts, maintain tire contact with the ground, and suppress excess spring vibration through dampers to reduce the feeling of bumps.

[0003] In actual use, existing air spring shock absorbers are equipped with dust covers to keep the internal dampers clean. However, the dust covers are usually installed using fixed methods such as adhesive bonding, which can easily detach after prolonged use and ultimately fail to prevent dust. On the other hand, using multiple bolts and nuts for fixing is very troublesome to disassemble and clean. Summary of the Invention

[0004] Based on the above description, the present invention provides an air spring shock absorber for commercial vehicles to solve the problem of difficulty in installing existing dust covers.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: an air spring shock absorber for commercial vehicles, including a housing; The top of the housing is equipped with an upper mounting base, the bottom is equipped with a dust cover, and the bottom of the dust cover is equipped with a lower mounting base. An installation component is installed at one end of the dust cover, and a docking component is connected to the end of the installation component away from the dust cover. The dust cover includes a cover body and a protrusion, and the protrusion is installed on the inner and outer walls of the end face of the cover body. The mounting assembly includes a mounting cylinder and a connecting cylinder. The mounting cylinder is sleeved on one end of the dust cover, and the connecting cylinder is fixedly connected to one end of the mounting cylinder. The mounting cylinder has a slot inside, and the end face of the cover is inserted into the inner cavity of the slot. The docking assembly includes a docking plate, a docking cylinder, and a slot. One end of the docking cylinder is fixedly connected to one side of the docking plate. The outer wall of the docking cylinder is threadedly connected to the inner wall of the connecting cylinder. The slot is formed in the inner cavity of the slot, and the protrusion is located in the inner cavity of the slot. The docking plate is fixedly connected to the outer wall of the outer shell.

[0006] Furthermore, the protrusion is designed as a ring, and the protrusion is located on the inner and outer sides of the cover. At the same time, the protrusion is in contact with the inner wall of the slot, and the slot is an annular groove.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the mounting assembly also includes a fixing groove and a top block, the top block being fixedly mounted on the end face of the connecting cylinder, and the fixing groove being formed on the outer wall of the mounting cylinder.

[0009] Furthermore, the docking assembly also includes an airbag, a connecting tube, a rubber pad, and a side plate. The airbag is located in an inner cavity opened inside the docking plate, the side plate is located on the docking plate, and the side plate is designed as a ring. At the same time, a cavity is opened inside the side plate for installing the connecting tube, and the rubber pad is located in a groove opened on the side plate.

[0010] Furthermore, the top block is an annular block, and the inner cavity of the docking plate has a through hole, through which the top block enters the inner cavity of the docking plate.

[0011] Furthermore, the rubber pad is connected to the inner cavity of the airbag via a connecting tube, and the opening of the fixing groove corresponds to the rubber pad.

[0012] Furthermore, the mounting components are located at the upper and lower ends of the cover, and the docking components dock with the mounting components at both ends of the cover, respectively.

[0013] Furthermore, a connecting ring is installed on the upper mounting base, and a threaded rod is installed on the lower mounting base.

[0014] Furthermore, a bladder is installed between the upper mounting base and the outer shell, and a damper is installed in the inner cavity of the outer shell. The top of the damper is installed with the upper mounting base, and the bottom of the damper is installed with the lower mounting base. The entire cover is corrugated tubular in shape.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: 1. This invention enables quick installation of the cover by screwing the connecting cylinder and the docking cylinder together, utilizing the threaded groove between them. Furthermore, a protrusion is installed on the cover, and the cooperation between the protrusion and the slot ensures the connection between the cover and the mounting cylinder when the connecting cylinder is screwed, preventing the cover from detaching from the mounting cylinder.

[0016] 2. By installing an airbag on the docking plate, along with the connecting pipe and rubber gasket, the pressure from the top block forces the rubber gasket into the fixing groove, thereby improving the sealing of the mounting cylinder and achieving a better dustproof effect for the dust cover. Attached Figure Description

[0017] Figure 1A schematic diagram of the structure of an air spring shock absorber for commercial vehicles provided in an embodiment of the present invention; Figure 2 This is a cross-sectional view of the overall structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged diagram of point A in the middle.

[0018] The attached diagram lists the components represented by each number as follows: 1. Outer shell; 2. Upper mounting base; 3. Connecting ring; 4. Airbag; 5. Lower mounting base; 6. Dust cover; 601. Cover body; 602. Protrusion; 7. Mounting assembly; 701. Mounting cylinder; 702. Connecting cylinder; 703. Slot; 704. Fixing slot; 705. Top block; 8. Docking assembly; 801. Docking plate; 802. Docking cylinder; 803. Airbag; 804. Connecting pipe; 805. Rubber pad; 806. Side plate; 9. Damper. Detailed Implementation

[0019] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0021] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0022] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the technical product is in use. They are used only for the convenience of describing the technology and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the technology. Furthermore, "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. Therefore, the terms "first," "second," "third," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0025] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this technology, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0027] Please see Figure 1 , Figure 2 and Figure 3 An air spring shock absorber for commercial vehicles includes a housing 1; The top of the outer casing 1 is fitted with an upper mounting base 2, and the bottom of the casing 1 is fitted with a dust cover 6. The bottom of the dust cover 6 is fitted with a lower mounting base 5. A mounting component 7 is installed at one end of the dust cover 6, and a docking component 8 is connected to the end of the mounting component 7 away from the dust cover 6. The dust cover 6 includes a cover body 601 and a protrusion 602. The protrusion 602 is installed on the inner and outer walls of the end face of the cover body 601. The mounting assembly 7 includes a mounting cylinder 701 and a connecting cylinder 702. The mounting cylinder 701 is sleeved on one end of the dust cover 6, and the connecting cylinder 702 is fixedly connected to one end of the mounting cylinder 701. The mounting cylinder 701 has a slot inside, and the end face of the cover 601 is inserted into the inner cavity of the slot. The docking assembly 8 includes a docking plate 801, a docking cylinder 802, and a slot 703. One end of the docking cylinder 802 is fixedly connected to one side of the docking plate 801. The outer wall of the docking cylinder 802 is threadedly connected to the inner wall of the connecting cylinder 702. The slot 703 is opened in the inner cavity of the slot, and the protrusion 602 is located in the inner cavity of the slot 703. The docking plate 801 is fixedly connected to the outer wall of the outer shell 1.

[0028] The cooperation between the protrusion 602 and the slot 703 allows the cover 601 and the mounting cylinder 701 to be in a connected state. When the docking cylinder 802 and the connecting cylinder 702 are screwed and fixed, the mounting cylinder 701 is still connected to the cover 601. At the same time, the connecting cylinder 702 and the docking cylinder 802 are threaded together, which can achieve the effect of convenient disassembly and installation.

[0029] Please see Figure 2 and Figure 3 In this embodiment, the protrusion 602 is designed as an annular shape and is located on the inner and outer sides of the cover 601. At the same time, the protrusion 602 is in contact with the inner wall of the slot 703. The slot 703 is an annular groove, which allows the protrusion 602 to rotate in the inner cavity of the slot 703, ensuring the stability between the cover 601 and the mounting cylinder 701.

[0030] Please see Figure 2 and Figure 3 The mounting component 7 in this embodiment also includes a fixing groove 704 and a top block 705. The top block 705 is fixedly mounted on the end face of the connecting cylinder 702, and the fixing groove 704 is formed on the outer wall of the mounting cylinder 701.

[0031] Please see Figure 2 and Figure 3 The docking assembly 8 in this embodiment also includes an airbag 803, a connecting tube 804, a rubber pad 805, and a side plate 806. The airbag 803 is located in the inner cavity opened inside the docking plate 801. The side plate 806 is located on the docking plate 801 and is designed as a ring. At the same time, a cavity is opened inside the side plate 806 for installing the connecting tube 804. The rubber pad 805 is located in the groove opened on the side plate 806.

[0032] Please see Figure 2 and Figure 3In this embodiment, the top block 705 is an annular block, and the inner cavity of the docking plate 801 is provided with a perforation. The top block 705 passes through the perforation and enters the inner cavity of the docking plate 801. The top block 705 is used to compress the airbag 803.

[0033] Please see Figure 2 and Figure 3 In this embodiment, the rubber pad 805 is connected to the inner cavity of the airbag 803 through the connecting pipe 804, and the opening of the fixing groove 704 corresponds to the rubber pad 805.

[0034] When the connecting cylinder 702 and the docking cylinder 802 are installed, the top block 705 will pass through the perforation to compress the airbag 803, allowing the gas inside the airbag 803 to enter the rubber pad 805 through the connecting pipe 804. The rubber pad 805 will then expand and enter the fixing groove 704 to fill the gap between the mounting cylinder 701 and the side plate 806, thereby achieving a sealing effect between the mounting component 7 and the docking component 8.

[0035] Please see Figure 2 and Figure 3 In this embodiment, the mounting components 7 are located at the upper and lower ends of the cover 601, and the docking components 8 dock with the mounting components 7 at both ends of the cover 601 respectively.

[0036] Mounting components 7 and docking components 8 are provided on both ends of the cover 601, allowing for quick installation and removal from both ends of the cover 601.

[0037] Please see Figure 1 In this embodiment, a connecting ring 3 is installed on the upper mounting base 2, and a threaded rod is installed on the lower mounting base 5. Both the connecting ring 3 and the threaded rod serve as a connection, making it easy to install onto the vehicle frame.

[0038] Please see Figure 2 and Figure 3 In this embodiment, a bladder 4 is installed between the upper mounting base 2 and the outer shell 1. A damper 9 is installed in the inner cavity of the outer shell 1. The top of the damper 9 is installed with the upper mounting base 2, and the bottom of the damper 9 is installed with the lower mounting base 5. The cover 601 is corrugated tubular in shape.

[0039] In practical use, the mounting cylinder 701 is fitted onto the docking cylinder 802, and then the mounting cylinder 701 is screwed on. The threaded groove between the mounting cylinder 701 and the docking cylinder 802 is used to complete the installation work between the mounting cylinder 701 and the docking cylinder 802. When the mounting cylinder 701 rotates, the protrusion 602 will rotate in the inner cavity of the slot 703, ensuring the connection between the cover 601 and the mounting cylinder 701. When the mounting cylinder 701 rotates, the top block 705 will pass through the perforation and squeeze onto the airbag 803, allowing the gas inside the airbag 803 to enter the rubber gasket 805 through the connecting pipe 804. At this time, the rubber gasket 805 will expand and enter the fixing groove 704, thereby sealing the side plate 806 and the mounting cylinder 701. This not only improves the sealing performance, but also makes the overall installation method more convenient.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An air spring shock absorber for commercial vehicles, comprising a housing (1), characterized in that: The top of the outer casing (1) is equipped with an upper mounting base (2), the bottom is equipped with a dust cover (6), and the bottom of the dust cover (6) is equipped with a lower mounting base (5). An installation component (7) is installed at one end of the dust cover (6), and a docking component (8) is connected to the end of the installation component (7) away from the dust cover (6). The dust cover (6) includes a cover body (601) and a protrusion (602). The protrusion (602) is installed on the inner and outer walls of the end face of the cover body (601). The mounting assembly (7) includes a mounting cylinder (701) and a connecting cylinder (702). The mounting cylinder (701) is sleeved on one end of the dust cover (6), and the connecting cylinder (702) is fixedly connected to one end of the mounting cylinder (701). The mounting cylinder (701) has a slot inside, and the end face of the cover (601) is inserted into the inner cavity of the slot. The docking assembly (8) includes a docking plate (801), a docking cylinder (802), and a slot (703). One end of the docking cylinder (802) is fixedly connected to one side of the docking plate (801). The outer wall of the docking cylinder (802) is threadedly connected to the inner wall of the connecting cylinder (702). The slot (703) is opened in the inner cavity of the slot, and the protrusion (602) is located in the inner cavity of the slot (703). The docking plate (801) is fixedly connected to the outer wall of the outer shell (1).

2. The air spring shock absorber for commercial vehicles according to claim 1, characterized in that, The protrusion (602) is designed as a ring, and the protrusion (602) is located on the inner and outer sides of the cover (601). At the same time, the protrusion (602) is in contact with the inner wall of the slot (703), which is an annular groove.

3. An air spring shock absorber for commercial vehicles according to claim 1, characterized in that, The mounting assembly (7) further includes a fixing groove (704) and a top block (705), the top block (705) being fixedly mounted on the end face of the connecting cylinder (702), and the fixing groove (704) being formed on the outer wall of the mounting cylinder (701).

4. An air spring shock absorber for commercial vehicles according to claim 1, characterized in that, The docking assembly (8) further includes an airbag (803), a connecting tube (804), a rubber pad (805), and a side plate (806). The airbag (803) is located in the inner cavity opened inside the docking plate (801). The side plate (806) is located on the docking plate (801), and the side plate (806) is designed as a ring. At the same time, a cavity is opened inside the side plate (806) for installing the connecting tube (804). The rubber pad (805) is located in a groove opened on the side plate (806).

5. An air spring shock absorber for commercial vehicles according to claim 3, characterized in that, The top block (705) is an annular block, and the inner cavity of the docking plate (801) is provided with a perforation. The top block (705) passes through the perforation and enters the inner cavity of the docking plate (801).

6. An air spring shock absorber for commercial vehicles according to claim 4, characterized in that, The rubber pad (805) is connected to the inner cavity of the airbag (803) through the connecting pipe (804), and the opening of the fixing groove (704) is oriented in a direction corresponding to that of the rubber pad (805).

7. An air spring shock absorber for commercial vehicles according to claim 1, characterized in that, The mounting components (7) are located at the upper and lower ends of the cover (601), and the docking components (8) dock with the mounting components (7) at both ends of the cover (601).

8. An air spring shock absorber for commercial vehicles according to claim 1, characterized in that, A connecting ring (3) is installed on the upper mounting base (2), and a threaded rod is installed on the lower mounting base (5).

9. An air spring shock absorber for commercial vehicles according to claim 1, characterized in that, A bladder (4) is installed between the upper mounting base (2) and the outer shell (1). A damper (9) is installed in the inner cavity of the outer shell (1). The top of the damper (9) is installed with the upper mounting base (2), and the bottom of the damper (9) is installed with the lower mounting base (5). The cover (601) is corrugated tubular in shape.

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