Adjustable air spring

Abstract

The utility model belongs to the field of air springs, and particularly relates to an adjustable air spring which comprises an air spring body, the top end of the air spring body is fixedly connected with an end cover, the top end of the end cover is fixedly connected with an air inlet pipe, and a communicating pipe body is arranged above the air inlet pipe. A sealing assembly is arranged on the surface of the top of the air inlet pipe, and a smearing assembly is arranged in the sealing assembly. The lower flange and the upper flange are arranged at the joint of the air inlet pipe and the communicating pipe body, and then the lower flange and the upper flange are connected through the connecting device, so that the air inlet pipe and the communicating pipe body are stably connected, and the situation that the air inlet pipe and the communicating pipe body are separated is avoided; the connecting position of the lower flange and the upper flange is sealed through the protective cover, in addition, the connecting position of the lower flange and the upper flange is coated with high-temperature-resistant silicone grease, and therefore the sealing performance between the air inlet pipe and the communicating pipe body is better.

Description

Technical Field

[0001] The utility model relates to the field of air springs, in particular to an adjustable air spring. Background Art

[0002] An adjustable air spring is a spring element used in automotive suspension systems. It changes the stiffness and height of the spring by adjusting the pressure of the internal air. It usually consists of one or more air chambers that can be inflated or deflated to change the hardness of the spring. Currently, adjustable air springs are increasingly used in the automotive industry, which can provide a better driving experience and higher vehicle configuration.

[0003] During use, the current air spring needs to adjust its internal pressure through the gas inside the air tank, and the air tank and the air spring are connected by a connecting pipe. Currently, the connecting pipe is usually directly plugged into the air inlet of the air spring. However, when the car is driving at high speed or passing through bumpy roads, the air spring and the connecting pipe may be subjected to strong impact and vibration, which may exceed their bearing capacity, thereby causing the two to fall off, and the air spring may not be used normally. Therefore, an adjustable air spring is proposed to address the above problem. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art and avoid the problem that the air spring cannot be used normally, the utility model proposes an adjustable air spring.

[0005] The technical solution adopted by the utility model to solve the technical problem is: an adjustable air spring, comprising an air spring body, the top end of the air spring body is fixedly connected to an end cap, the top end of the end cap is fixedly connected to an air intake pipe, a connecting pipe body is provided above the air intake pipe, a sealing assembly is provided on the surface of the top of the air intake pipe, and a smear assembly is provided inside the sealing assembly;

[0006] The sealing assembly includes a lower flange fixedly mounted on the top end of the intake pipe, an upper flange fixedly mounted on the bottom end of the connecting pipe body, a connecting device is provided between the lower flange and the upper flange, the surfaces of the edges of the lower flange and the upper flange are sleeved with protective covers, the internal thread of the protective cover close to the center of the circle is connected to an abutment rod, an annular groove is provided inside the protective cover, hollow tubes are fixedly connected on the left and right sides of the protective cover, a spiral sleeve is threaded on the surface of the hollow tube, and a block is fixedly mounted inside the spiral sleeve.

[0007] Preferably, the proximal ends of the lower flange and the upper flange are adapted to fit together, and the connecting device includes bolts inserted into the lower flange and the upper flange, and two nuts threadedly connected to the upper and lower sides of the screw surface. The lower flange and the upper flange are stably connected through the connecting device, so that the air intake pipe and the connecting pipe body are stably connected.

[0008] Preferably, the inner wall of the protective cover is respectively adapted to fit with the side walls of the lower flange and the upper flange and the edges of the upper and lower ends, and the end of the abutment rod close to the inside of the protective cover is adapted to fit with the ends of the lower flange and the upper flange away from each other. The protective cover can seal the connection between the lower flange and the upper flange, thereby making the sealing between the lower flange and the upper flange better.

[0009] Preferably, the annular groove is connected to a hollow tube which passes through the inner and outer sides of the protective cover. High temperature resistant silicone grease can be added to the interior of the annular groove through the hollow tube, thereby improving the sealing performance of the connection between the lower flange and the upper flange.

[0010] Preferably, the blocking block is adapted to be inserted into the interior of the hollow tube, and the blocking block seals the hollow tube. After adding high-temperature resistant silicone grease, the blocking block is used to seal the hollow tube.

[0011] Preferably, the smear assembly includes two smear blocks slidably connected to the left and right sides of the annular groove, a connecting spring is fixedly connected between the two smear blocks, and a pull rope is fixedly connected between the two smear blocks.

[0012] Preferably, a through hole is opened in the middle of the rear side of the annular groove, and the through hole passes through the inner and outer sides of the protective cover. The end of the pull rope away from the connecting spring passes through the through hole and extends to the outside of the protective cover. The pull rope can be pulled to drive the connecting spring to slide inside the annular groove, thereby applying the high-temperature resistant silicone grease inside the annular groove to the edges of the lower flange and the upper flange.

[0013] The utility model is beneficial in that:

[0014] The utility model provides a lower flange and an upper flange at the connection between the air intake pipe and the connecting pipe body, and then connects the lower flange and the upper flange through a connecting device to ensure a stable connection between the air intake pipe and the connecting pipe body, thereby preventing the air intake pipe and the connecting pipe body from being separated.

[0015] The connection between the lower flange and the upper flange is sealed by a protective cover. In addition, high-temperature resistant silicone grease is applied to the connection between the lower flange and the upper flange, thereby improving the sealing performance between the intake pipe and the connecting pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the connection between the lower flange and the upper flange of the utility model;

[0019] Figure 3 For the utility model Figure 2 Schematic diagram of cross-section structure;

[0020] Figure 4 For the utility model Figure 3 A in the middle is an enlarged structural diagram;

[0021] Figure 5 This is a schematic diagram of the structure of the annular groove of the utility model in a top view and section.

[0022] In the figure: 1. Air spring body; 2. End cover; 3. Inlet pipe; 4. Connecting pipe body; 5. Sealing assembly; 51. Lower flange; 52. Upper flange; 53. Connecting device; 54. Protective cover; 55. Abutment rod; 56. Annular groove; 57. Hollow tube; 58. Spiral sleeve; 59. Block; 6. Applicator assembly; 61. Applicator block; 62. Connecting spring; 63. Pull rope. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The following is combined with Figure 1 —5 provide further details of this application,

[0025] The present application discloses an adjustable air spring. Figure 1An adjustable air spring includes an air spring body 1, an end cap 2 is fixedly connected to the top of the air spring body 1, an air intake pipe 3 is fixedly connected to the top of the end cap 2, a connecting pipe body 4 is provided above the air intake pipe 3, a sealing component 5 is provided on the surface of the top of the air intake pipe 3, and a smearing component 6 is provided inside the sealing component 5;

[0026] Reference Figure 2 - Figure 4 The sealing assembly 5 includes a lower flange 51 fixedly mounted on the top of the intake pipe 3, and an upper flange 52 is fixedly mounted on the bottom end of the connecting pipe body 4. A connecting device 53 is provided between the lower flange 51 and the upper flange 52, and the proximal ends of the lower flange 51 and the upper flange 52 are adapted to fit together. The connecting device 53 includes a bolt inserted into the lower flange 51 and the internal part of the upper flange 52, and two nuts threadedly connected to the upper and lower sides of the screw surface. The lower flange 51 and the upper flange 52 are stably connected by the connecting device 53, so that the intake pipe 3 and the connecting pipe body 4 are stably connected. The surface of the edge of the lower flange 51 and the upper flange 52 is sleeved with a protective cover 54, and the internal thread of the protective cover 54 near the center of the circle is connected to an abutting rod 55. The inner wall of the protective cover 54 is adapted to fit together with the side walls of the lower flange 51 and the upper flange 52 and the edges of the upper and lower ends respectively. The abutting rod 55 is close to one end of the inner part of the protective cover 54 and the lower The flange 51 and the upper flange 52 are adapted to fit together at the ends away from each other, and the protective cover 54 can seal the connection between the lower flange 51 and the upper flange 52, so that the sealing between the lower flange 51 and the upper flange 52 is better. An annular groove 56 is provided inside the protective cover 54, and hollow tubes 57 are fixedly connected to the left and right sides of the protective cover 54. The annular groove 56 and the hollow tube 57 are connected. The hollow tube 57 runs through the inner and outer sides of the protective cover 54, and high-temperature resistant silicone grease can be added to the inside of the annular groove 56 through the hollow tube 57, so that the sealing of the connection between the lower flange 51 and the upper flange 52 is better. The surface of the hollow tube 57 is threadedly connected with a spiral sleeve 58, and a blocking block 59 is fixedly installed inside the spiral sleeve 58. The blocking block 59 is adapted to be inserted into the inside of the hollow tube 57, and the blocking block 59 seals the hollow tube 57. After adding the high-temperature resistant silicone grease, the hollow tube 57 is sealed by the blocking block 59.

[0027] Reference Figure 5 The smearing assembly 6 includes two smearing blocks 61 slidably connected to the left and right sides of the annular groove 56, a connecting spring 62 is fixedly connected between the two smearing blocks 61, and a pull rope 63 is fixedly connected between the two smearing blocks 61. A through hole is opened in the middle of the rear side of the annular groove 56, and the through hole passes through the inner and outer sides of the protective cover 54. One end of the pull rope 63 away from the connecting spring 62 extends through the through hole to the outside of the protective cover 54. The pull rope 63 can be pulled to drive the connecting spring 62 to slide inside the annular groove 56, so that the high-temperature resistant silicone grease inside the annular groove 56 is smeared on the edges of the lower flange 51 and the upper flange 52.

[0028] Working principle: After the operator installs the air spring body 1, the lower flange 51 and the upper flange 52 are fitted together and placed inside the protective cover 54, and then the bolts are inserted between the lower flange 51 and the upper flange 52, and then the two nuts are rotated. At this time, the two nuts rotate on the surface of the bolts until they fit on the end of the lower flange 51 and the upper flange 52 away from each other. At this time, the lower flange 51 and the upper flange 52 are stably connected together. Then the operator inserts the abutment rod 55 into the inside of the protective cover 54, and rotates the abutment rod 55 until it abuts on the end of the lower flange 51 and the upper flange 52 away from each other. At this time, the position of the protective cover 54 is limited by the friction between the abutment rod 55 and the lower flange 51 and the upper flange 52 respectively. At this time, the protective cover 54 seals the connection between the lower flange 51 and the upper flange 52.

[0029] Afterwards, the operator adds silicone grease to the inside of the annular groove 56 through the hollow tube 57, and then the operator pulls the pull rope 63. After the pull rope 63 is pulled, the two smear blocks 61 will be pulled away from each other. At this time, the two smear blocks 61 will stretch the connecting spring 62 and slide inside the annular groove 56. During the sliding of the smear blocks 61, silicone grease will be applied to the connection between the edges of the lower flange 51 and the upper flange 52. At this time, the silicone grease further seals the connection between the edges of the lower flange 51 and the upper flange 52. Then the operator loosens the pull rope 63. At this time, the two smear blocks 61 approach each other under the action of the rebound force of the connecting spring 62 until they are no longer subjected to external force. Then the operator rotates the spiral sleeve 58 again. At this time, the spiral sleeve 58 drives the blocking block 59 to rotate toward the inside of the hollow tube 57, so that the blocking block 59 seals the hollow tube 57.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. An adjustable air spring, characterized in that: The invention comprises an air spring body (1), the top end of the air spring body (1) is fixedly connected to an end cover (2), the top end of the end cover (2) is fixedly connected to an air intake pipe (3), a connecting pipe body (4) is arranged above the air intake pipe (3), a sealing component (5) is arranged on the surface of the top of the air intake pipe (3), and a smearing component (6) is arranged inside the sealing component (5); The sealing assembly (5) includes a lower flange (51) fixedly mounted on the top end of the intake pipe (3), an upper flange (52) fixedly mounted on the bottom end of the connecting pipe body (4), a connecting device (53) provided between the lower flange (51) and the upper flange (52), a protective cover (54) is sleeved on the surface of the edge of the lower flange (51) and the upper flange (52), an internal thread of the protective cover (54) near the center of the circle is connected to an abutting rod (55), an annular groove (56) is provided inside the protective cover (54), a hollow tube (57) is fixedly connected to the left and right sides of the protective cover (54), a spiral sleeve (58) is threadedly connected to the surface of the hollow tube (57), and a blocking block (59) is fixedly mounted inside the spiral sleeve (58).

2. The adjustable air spring according to claim 1, characterized in that: The proximal ends of the lower flange (51) and the upper flange (52) are adapted to fit together, and the connecting device (53) includes bolts inserted into the lower flange (51) and the upper flange (52), and two nuts threadedly connected to the upper and lower sides of the screw surface.

3. The adjustable air spring according to claim 1, characterized in that: The inner wall of the protective cover (54) is respectively adapted to fit with the side walls and upper and lower edges of the lower flange (51) and the upper flange (52), and the end of the abutting rod (55) close to the interior of the protective cover (54) is adapted to fit with the ends of the lower flange (51) and the upper flange (52) away from each other.

4. The adjustable air spring according to claim 1, characterized in that: The annular groove (56) is communicated with the hollow tube (57), and the hollow tube (57) passes through both the inner and outer sides of the protective cover (54).

5. The adjustable air spring according to claim 1, characterized in that: The blocking block (59) is adapted to be inserted into the interior of the hollow tube (57), and the blocking block (59) seals the hollow tube (57).

6. The adjustable air spring according to claim 1, characterized in that: The smear assembly (6) comprises two smear blocks (61) slidably connected to the left and right sides of the annular groove (56), a connecting spring (62) is fixedly connected between the two smear blocks (61), and a pull rope (63) is fixedly connected between the two smear blocks (61).

7. The adjustable air spring according to claim 6, characterized in that: A through hole is provided in the middle of the rear side of the annular groove (56), and the through hole passes through the inner and outer sides of the protective cover (54). One end of the pull rope (63) away from the connecting spring (62) passes through the through hole and extends to the outside of the protective cover (54).

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