A device for convenient and quick disassembly of air suspension assembly

Abstract

This utility model relates to the field of automotive chassis repair technology, specifically a device for convenient and quick disassembly of an air suspension assembly. It includes a mounting frame, which is fixed to a bracket or wall by screws. A cylinder is fixedly mounted on the top of the mounting frame, with its output end facing downwards and fitted with a pressure head. A support frame for clamping the air suspension assembly is installed in the middle of the mounting frame. A second support frame is installed below the mounting frame. This utility model offers strong adaptability: it is compatible with various air suspension assemblies with different structures such as retaining rings, lugs, and center rubber, and is suitable for the rear suspension repair needs of models like the Phaeton and A8, as well as mainstream sedans and SUVs, without requiring multiple sets of tools. It also boasts high efficiency: the disassembly and assembly time for a single air suspension assembly is reduced to 10-15 minutes; retaining ring disassembly requires no multiple people; and leak detection can be completed directly on the device, reducing process steps.

Description

Technical Field

[0001] This utility model relates to the field of automotive chassis repair technology, specifically a device for convenient and quick disassembly of air suspension assemblies. Background Technology

[0002] In the repair of automotive air suspension, the disassembly and assembly of the air suspension assembly (composed of components such as the air bag, mechanism, top cover, retaining ring, and center mount) is one of the core procedures. Currently, repair personnel mostly rely on general-purpose tools (such as pry bars, wrenches, and jacks) for manual operation, which presents the following problems: Poor adaptability: The air suspension structures of different models (such as Phaeton and A8) vary greatly. For the top rubber belt structure with snap ring, the connection structure with hanging lug, and the rear shock structure with center rubber, multiple sets of special tools are required, which are costly and inconvenient to carry. Low disassembly and assembly efficiency: When operating manually, multiple people are needed to cooperate in fixing the components (such as holding the air bag and supporting the mechanism). In particular, when removing the retaining spring, precise force is required, which can easily lead to problems such as the retaining spring jamming and the top cover deformation. The disassembly and assembly of a single assembly usually takes more than 30 minutes. Components are easily damaged: There is no dedicated positioning mechanism, and components are prone to displacement during disassembly and assembly, which can cause scratches on the air bag and damage to the sealing surface of the mechanism, increasing maintenance costs; Inconvenient testing: Air suspensions with center mounts (such as Phaeton and A8 rear suspensions) require testing for leaks by simulating the vehicle's installation condition. Existing tools cannot stably fix the assembly and restore it to its original usage state, resulting in inaccurate leak test results. Utility Model Content

[0003] The purpose of this utility model is to provide a device for convenient and quick disassembly of air suspension assembly, so as to solve the problems mentioned in the background art, such as poor compatibility of air suspension assembly disassembly and assembly, low efficiency, easy damage of parts, and inconvenience in air leakage detection.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A device for convenient and quick disassembly of an air suspension assembly includes a mounting frame, which is fixed to a bracket or wall by screws. A cylinder is fixedly installed on the top of the mounting frame, with the output end of the cylinder facing downward and equipped with a pressure head. A support frame for clamping the air suspension assembly is installed in the middle of the mounting frame. A second support frame is installed below the mounting frame.

[0005] In a preferred embodiment of the present invention, a support block is fixedly installed at the middle of the front end of the fixing frame, and the support frame includes a support plate and a clamping plate, with the support plate fixedly installed on the fixing frame and the support block.

[0006] In a preferred embodiment of this utility model, the clamping plate is provided in two sets, which are rotatably connected to the top of the support plate by positioning pins. The support plate has arc-shaped through holes on both sides, and the center point of the arc-shaped through hole coincides with the positioning pin.

[0007] In a preferred embodiment of this utility model, a second screw is fixedly installed at the bottom of the clamping plate. The second screw extends downward through an arc-shaped through hole to form a support plate. A nut is installed at the bottom of the second screw. An internal threaded hole is formed on the inner wall of the nut. The depth of the internal threaded hole is greater than the length of the second screw extending out of the support plate.

[0008] In a preferred embodiment of this utility model, the second support frame includes a flipping head, the left end of which has a second through hole, which is set in two sets. The bottom sides of the fixed frame have evenly spaced first through holes, and the flipping head is connected to the fixed frame by bolts passing through the second through holes.

[0009] In a preferred embodiment of this utility model, positioning ears are fixedly installed on both sides of the top of the flipping head, and a pressure rod is fixedly installed on the right end of the flipping head.

[0010] In a preferred embodiment of this utility model, a clamp is installed on the positioning ear, and hanging ears are fixedly installed on both sides of the bottom of the clamp. The bottom of the hanging ears is installed on the positioning ear by a pin.

[0011] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0012] Highly adaptable: It is compatible with various air suspension assemblies with different structures such as snap rings, lugs, and center mounts, and can be used for the rear shock absorbers of models such as Phaeton and A8, as well as the air suspension repair needs of mainstream sedans and SUVs, without the need to change multiple sets of tools; High efficiency: The disassembly and assembly time of a single air suspension assembly is reduced to 10-15 minutes, the circlip removal does not require multiple people to cooperate, and the air leakage detection can be completed directly on the device, reducing the number of processes. Protective components: The pressure head and clamps are made of rubber to assist contact, and the clamps can be precisely positioned to prevent parts from being scratched or deformed during disassembly and assembly; Easy to operate: All adjustment structures (clamp opening angle, support frame height) are quickly fixed by bolts and pins, and maintenance personnel can complete the operation by one person, reducing labor costs. Attached Figure Description

[0013] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1A front view of a device for convenient and quick disassembly of an air suspension assembly; Figure 2 A side view of a device for convenient and quick disassembly of an air suspension assembly; Figure 3 A schematic diagram of the support frame structure in a device for convenient and quick disassembly of an air suspension assembly; Figure 4 A schematic diagram of the support frame 2 and the fixed frame structure in a device for convenient and quick disassembly of an air suspension assembly; Figure 5 A top view of the support frame in a device for convenient and quick disassembly of an air suspension assembly; Figure 6 A top view of the support plate in a device for convenient and quick disassembly of an air suspension assembly; Figure 7 A schematic diagram of the screw, nut, and internal threaded hole structure in a device for convenient and quick disassembly of an air suspension assembly; Figure 8 A schematic diagram of the clamp structure in a device for convenient and quick disassembly of an air suspension assembly; Figure 9 A top view of the clamp in a device for convenient and quick disassembly of an air suspension assembly.

[0014] In the diagram: Fixture 100, Screw 110, Support Block 120, Through Hole 130 Cylinder 200, Pressure Head 210 Support frame 300, support plate 310, arc-shaped through hole 311, positioning pin 312. Clamping plate 320, screw 2 330, nut 340, internal threaded hole 341 Support frame 2 400, flip head 410, positioning ear 420, through hole 2 430, pressure rod 440, bolt 450. Clamp 500, Ear loop 510. Detailed Implementation

[0015] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0016] Please refer to Figure 1-9A device for convenient and quick disassembly of an air suspension assembly includes a mounting bracket 100, which is fixed to a bracket or wall by screws 110. A cylinder 200 is fixedly installed on the top of the mounting bracket 100, with the output end of the cylinder 200 facing downward and equipped with a pressure head 210. A support bracket 300 for clamping the air suspension assembly is installed in the middle of the mounting bracket 100. A second support bracket 400 is installed below the mounting bracket 100.

[0017] The top of the fixed frame 100 is detachably mounted with a cylinder 200 by bolts, and the output end is mounted with a pressure head 210 by a threaded connection. The pressure head 210 is made of polyurethane material (hardness 50-60D) to avoid scratching the top parts of the air suspension assembly during pressing. The axis of the pressure head 210 coincides with the central axis of the support frame 300 to ensure vertical pressure transmission. A support block 120 is fixedly installed at the middle of the front end of the fixed frame 100. The support frame 300 includes a support plate 310 and a clamping plate 320. The support plate 310 is fixedly installed on the fixed frame 100 and the support block 120.

[0018] The mounting bracket 100 is a vertically arranged plate structure that can be detachably fixed to the maintenance bracket or wall by screws 110 to ensure the overall stability of the device. Multiple sets of through holes 130 are evenly opened on both sides of the bottom of the mounting bracket 100 along the height direction to realize the multi-position adjustment of the support frame 400. A support block 120 is welded and fixed at the middle position of the front end of the fixed frame 100. The support block 120 is perpendicular to the fixed frame 100 and is used to enhance the load-bearing strength of the support frame 100.

[0019] The clamping plate 320 is provided in two sets, which are rotatably connected to the top of the support plate 310 by positioning pins 312. The support plate 310 has arc-shaped through holes 311 on both sides, and the center point of the arc-shaped through hole 311 coincides with the positioning pin 312.

[0020] The support plate 310 is a horizontally arranged rectangular metal plate, which is fixedly installed on the front end face of the fixing frame 100 and the top of the support block 120 by bolts. The upper surface of the support plate 310 has an arc-shaped groove adapted to the bottom of the air suspension assembly. The groove radius is 50-150mm, which is adapted to air suspension assemblies of different diameters and is used for the initial positioning of the air suspension assembly. Two sets of clamping plates 320 are symmetrically distributed on both sides of the top of the support plate 310. Each set of clamping plates 320 is rotatably connected to the support plate 310 via a positioning pin 312. The center point of the arc-shaped through hole 311 coincides with the axis of the positioning pin 312, and the arc angle is 0-60°, ensuring that the clamping plate 320 can rotate around the positioning pin 312 to adjust the opening and closing angle to adapt to air suspension assemblies with diameters of 80-200mm.

[0021] Screw 330 is fixedly installed at the bottom of clamping plate 320. Screw 330 extends downward through arc-shaped through hole 311 to support plate 310. Nut 340 is installed at the bottom of screw 330. Nut 340 has an internal threaded hole 341 on its inner wall. The depth of internal threaded hole 341 is greater than the length of screw 330 extending out of support plate 310, with a difference of 5-10mm, to ensure that nut 340 can be fully tightened to lock clamping plate 320 in position and prevent clamping plate from loosening during disassembly and assembly. The second support frame 400 includes a flipping head 410. The left end of the flipping head 410 has a second through hole 430. The second through hole 430 is set in two sets. The bottom sides of the fixed frame 100 have evenly spaced through holes 130. The flipping head 410 is connected to the fixed frame 100 by bolts 450 passing through the second through hole 430.

[0022] The flip head 410 is an L-shaped metal frame. By selecting through holes 130 of different heights, the support frame 400 can be adjusted in multiple positions (adjustment stroke 50-200mm) to adapt to air suspension assemblies of different lengths and meet the requirements of stretching and separating the air bag and the mechanism. Positioning ears 420 are fixedly installed on both sides of the top of the flip head 410, and a pressure rod 440 is fixedly installed on the right end of the flip head 410. The pressure rod 440 is 300-500mm long and is covered with an anti-slip rubber sleeve. By flipping the pressure rod 440 downward, the flip head 410 can be rotated around the bolt to realize the stretching or separation action of the air suspension assembly. A clamp 500 is detachably installed on the positioning ear 420. The clamp 500 is a semi-circular metal clamp (the inner diameter is adapted to the bottom diameter of the air suspension mechanism, ranging from 60-120mm). Its inner wall is covered with a rubber pad (3-5mm thick) to prevent scratching the mechanism when clamping. Hanging ears 510 are welded and fixed on both sides of the bottom of the clamp 500. The hanging ears 510 have through holes that match the pin holes of the positioning ear 420. The bottom of the hanging ears 510 can be detachably installed on the positioning ear 420 by a pin, so as to realize the quick connection between the clamp 500 and the support frame 400.

[0023] The working principle of this utility model is as follows: Scenario 1: Disassembly of the air suspension assembly with top rubber strap retaining spring; Prepare auxiliary tools: Select a suitable sleeve (with an inner diameter matching the outer diameter of the circlip) or washer (thickness 5-10mm, diameter covering the circlip removal position) according to the size of the top circlip of the air suspension assembly. Positioning the air suspension assembly: Place the sleeve / washer at the circlip removal position on top of the air suspension assembly, and then place the entire assembly into the arc-shaped groove of the support plate 310 of the support frame 300; Fixed assembly: Rotate the two sets of clamps 320 so that the inner wall of the clamps 320 is in contact with the side wall of the air suspension assembly. After adjusting to a suitable opening and closing angle, tighten the nut 340 to lock the clamps 320. To remove the retaining ring: Start cylinder 200 and control the pressure head 210 to slowly move down until the pressure head 210 presses firmly on the sleeve / washer (ensure the retaining ring is evenly stressed). The maintenance personnel can then use an external pry bar to insert into the retaining ring gap and gently pry it to remove the retaining ring. Removing the top cover and screws: Remove the socket / washer, manually remove the cover plate of the air suspension assembly, and then use a wrench to unscrew the top cover screws to complete the disassembly of the top components.

[0024] Scenario 2: The air suspension assembly core and air bag are separated (no hanger structure); Fixing the mechanism: Place the clamp 500 on the bottom of the air suspension mechanism, tighten the clamp 500 with bolts to clamp the mechanism, and then connect the hanging ear 510 at the bottom of the clamp 500 to the positioning ear 420 of the support frame 2 400 with pins. Fixed air bag: The air suspension air bag is clamped and fixed by the clamp 320 of the support frame 300 (adjust the opening and closing angle of the clamp to match the diameter of the air bag). Separation operation: The maintenance personnel hold the pressure rod 440 and slowly flip it downwards (flipping angle 0-45°). Through the lever action of the flipping head 410, the mechanism is moved downwards, thus separating the mechanism from the air bag (the sealing surface can be observed to see if it is intact during the separation process).

[0025] Scenario 3: The air suspension assembly with hangers is separated from the air bag; Direct connection positioning: Without using clamp 500, the mounting ears of the air suspension assembly are directly connected to the positioning ears 420 of the support frame 2 400 via pins; Fixed air bag: The air suspension air bag part is clamped by the clamp 320 of the support frame 300; Separation operation: Flip the lever 440 downwards to use leverage to separate the mechanism from the air bag. The operation steps are simpler than those in scenario 2, and no additional clamps need to be assembled.

[0026] Scenario 4: Leakage detection of air suspension assembly with center rubber (such as Phaeton, A8 rear suspension); Adjust support frame 2 400: Connect the two sets of through holes 2 430 of the flip head 410 to the through holes 130 of the fixed frame 100 with bolts 450, so that the vertical section of the flip head 410 is in contact with the fixed frame 100 and the horizontal section is perpendicular to the fixed frame 100 at 90° (simulating the vertical use mode when the air suspension is installed on the vehicle). Fixed assembly: The top of the air suspension assembly with center adhesive is positioned and clamped by the support bracket 300, and the bottom is fixed on the horizontal section of the flip head 410 to ensure that the assembly is vertical. Leakage detection: Use a water sprayer to spray water onto the center rubber part of the air suspension assembly, while simultaneously introducing compressed air (pressure 0.3-0.5MPa) into the air tank. Observe whether bubbles are generated on the surface of the center rubber. If bubbles are generated, it indicates that the center rubber seal has failed and the part needs to be replaced.

[0027] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A device for convenient and quick disassembly of an air suspension assembly, comprising a mounting bracket (100), characterized in that: The fixing frame (100) is fixed to the bracket or wall by screw one (110). A cylinder (200) is fixedly installed on the top of the fixing frame (100). The output end of the cylinder (200) faces downward and is equipped with a pressure head (210). A support frame one (300) for clamping the air suspension assembly is installed in the middle of the fixing frame (100). A support frame two (400) is installed below the fixing frame (100).

2. The device for convenient and quick disassembly of an air suspension assembly according to claim 1, characterized in that, A support block (120) is fixedly installed at the middle of the front end of the fixed frame (100). The support frame (300) includes a support plate (310) and a clamping plate (320). The support plate (310) is fixedly installed on the fixed frame (100) and the support block (120).

3. The device for convenient and quick disassembly of an air suspension assembly according to claim 2, characterized in that, The clamping plate (320) is provided in two sets, which are rotatably connected to the top of the support plate (310) by positioning pins (312). The support plate (310) has arc-shaped through holes (311) on both sides, and the center point of the arc-shaped through hole (311) coincides with the positioning pin (312).

4. The device for convenient and quick disassembly of the air suspension assembly according to claim 3, characterized in that, The bottom of the clamping plate (320) is fixedly installed with screw two (330), and screw two (330) extends downward through the arc-shaped through hole (311) to the support plate (310). A nut (340) is installed at the bottom of screw two (330), and the inner wall of the nut (340) is provided with an internal thread hole (341). The depth of the internal thread hole (341) is greater than the length of screw two (330) extending out of the support plate (310).

5. The device for convenient and quick disassembly of an air suspension assembly according to claim 1, characterized in that, The second support frame (400) includes a flipping head (410). The left end of the flipping head (410) is provided with a second through hole (430). The second through hole (430) is set in two sets. The bottom sides of the fixed frame (100) are evenly provided with a first through hole (130). The flipping head (410) is connected to the fixed frame (100) by bolts (450) passing through the second through hole (430).

6. The device for convenient and quick disassembly of an air suspension assembly according to claim 5, characterized in that, Positioning ears (420) are fixedly installed on both sides of the top of the flip head (410), and a pressure rod (440) is fixedly installed on the right end of the flip head (410).

7. The device for convenient and quick disassembly of an air suspension assembly according to claim 6, characterized in that, A clamp (500) is installed on the positioning ear (420), and a hanging ear (510) is fixedly installed on both sides of the bottom of the clamp (500). The bottom of the hanging ear (510) is installed on the positioning ear (420) by a pin.

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