Air spring maintenance rack
By designing an air spring repair bench, the problem of requiring multiple people to repair air springs in existing technologies has been solved. This enables efficient disassembly and leak detection by a single person, improving repair efficiency and standardization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN BAIXIN FENGTANG AUTOMOBILE IND TECH CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-05-19
AI Technical Summary
In the current technology, the repair of automotive air springs requires the cooperation of multiple people, which is time-consuming and labor-intensive, and there is a lack of standardized repair tools, resulting in a waste of human and material resources.
A spring repair stand was designed, including a support frame, a left stand, and a right stand. The support frame consists of a bottom horizontal bar, a top horizontal bar, and a vertical support bar. The left stand is used to fix and disassemble the spring, and the right stand is used for leak detection. The spring is clamped and compressed by bolts and threaded rods, and is equipped with an inflation valve and a pressure gauge for detection.
It enables single-person operation of air spring disassembly and leak detection, saving manpower and resources, and improving maintenance efficiency and standardization.
Smart Images

Figure CN224255288U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive air spring repair technology, and in particular to an air spring repair bench. Background Technology
[0002] An automotive air spring is a device that uses air as an elastic medium. It achieves elasticity by compressing air, thereby effectively absorbing and mitigating vibrations generated during vehicle operation. It mainly consists of a rubber air bladder and internal compressed air, utilizing the expansion and contraction of the rubber air bladder and the compressibility of the compressed air to achieve elastic recovery.
[0003] Currently, during the repair of automotive air springs, the air suspension is placed on a workbench. Due to the lack of specialized repair tools, various auxiliary equipment is required to disassemble and inflate the air springs. Inconsistent repair standards lead to the following defects in the repair of automotive air springs:
[0004] 1) It requires two people to operate, which wastes a lot of manpower and material resources.
[0005] 2) It requires auxiliary equipment such as presses and leak detectors, and the operation is time-consuming and labor-intensive.
[0006] Therefore, this application proposes a spring repair bench. Utility Model Content
[0007] This utility model discloses a spring repair stand, which aims to solve the technical problems in the background art.
[0008] To achieve the above objectives, the present invention adopts the following technical solution:
[0009] Air spring repair stand, including:
[0010] A support frame, comprising a bottom horizontal bar, a top horizontal bar, and a vertical support bar;
[0011] The left side frame is used to fix and disassemble the air spring. The left side frame includes four first support columns welded and fixed to the surface of the top horizontal bar in a rectangular array, and a positioning frame fixed to the top of the four first support columns by bolts. The inner wall of the positioning frame is slidably provided with a clamping plate. The left side frame also includes a support plate fixed to the surface of the top horizontal bar by bolts and corresponding to the positioning frame.
[0012] The right-side platform is used for air leakage detection of air springs. The right-side platform includes a mounting plate fixed to the surface of the top horizontal bar by bolts, and two second support columns welded to the upper surface of the mounting plate. The surfaces of the two second support columns are slidably provided with pressure plates. The surface of the support frame is provided with an inflation valve corresponding to the right-side platform, and the surface of the inflation valve is provided with a pressure gauge.
[0013] In a preferred embodiment, there are four bottom horizontal bars, four top horizontal bars, and four vertical support bars. The beginning and end of the four bottom horizontal bars and the four top horizontal bars are fixed by welding, and the four vertical support bars are welded and fixed in a rectangular array in the middle of the four bottom horizontal bars and the four top horizontal bars.
[0014] By setting four bottom horizontal bars, a top horizontal bar, and vertical support bars, the support frame can form a three-dimensional rectangular frame structure, which improves the overall stability.
[0015] In a preferred embodiment, the lower surfaces of the four bottom horizontal bars are provided with four casters in a rectangular array, and the upper surfaces of the four bottom horizontal bars are provided with storage panels.
[0016] The omnidirectional wheels make it easy to move the stand, while the storage board allows for the placement of sheet metal storage boxes to store tools.
[0017] In a preferred embodiment, the inner wall of the positioning frame has a rectangular opening, the clamping plate is slidably connected to the inner wall of the rectangular opening, and two symmetrical slide bars are fixed on the outer surface of the clamping plate. The inner wall of the rectangular opening has a groove for the slide bars to slide.
[0018] By setting up sliding bars, the stability of the clamping plate during movement is effectively guaranteed.
[0019] In a preferred embodiment, a connecting plate is fixed to the inner wall of the rectangular opening by bolts, a transverse threaded hole is provided on the side of the connecting plate, a transverse threaded rod is threaded to the inner wall of the transverse threaded hole, one end of the transverse threaded rod is rotatably connected to the surface of the clamping plate, and a rudder is fixed to the other end of the transverse threaded rod.
[0020] By setting a transverse threaded rod, the rudder can rotate the transverse threaded rod, thereby driving the clamping plate to clamp and fix the air spring.
[0021] In a preferred embodiment, the surface of the clamping plate has two mounting holes, and the inner walls of the two mounting holes are fixedly provided with sliding sleeves. The inner walls of the two sliding sleeves are slidably connected to the outer surfaces of the two second support columns, and the lower surface of the clamping plate is fixedly provided with an angle positioning block, which is made of magnetic material.
[0022] By setting an angle positioning block, the angle positioning of the air spring pressure holding valve can be achieved.
[0023] In a preferred embodiment, the top ends of the two second support columns are fixed with fixing plates by bolts, and the surface of the fixing plates is provided with vertical threaded holes. The inner wall of the vertical threaded holes is threaded with a vertical threaded rod, the bottom end of which is rotatably connected to the upper surface of the pressure plate, and the top end of the vertical threaded rod is fixed with a rotating handle.
[0024] By setting a vertical threaded rod, the pressure plate can be moved downwards by the rotation of the vertical threaded rod, thereby compressing the air spring.
[0025] As can be seen from the above, the air spring repair stand provided by this utility model has the following technical effects.
[0026] Firstly, by setting up a left-side platform, this utility model allows the bottom end of the air spring to be placed on the support plate during maintenance. By rotating the transverse threaded rod, the rotation of the transverse threaded rod causes the clamping plate to move, clamping and fixing the air spring inside the positioning frame, thus facilitating the disassembly of the air spring.
[0027] Secondly, by setting up a right-side platform, this utility model allows the air spring to be placed on the mounting plate when testing its sealing performance. By rotating the handle, the vertical threaded rod is driven to move the pressure plate downwards, compressing the air spring to the designed height. The air spring is then connected to an external air source via an inflation valve, enabling inflation testing. The air spring is then tested for leaks by observing changes in the pressure gauge. Attached Figure Description
[0028] Figure 1 This is a three-dimensional structural diagram of the air spring repair stand proposed in this utility model.
[0029] Figure 2 This is a front view structural diagram of the air spring repair stand proposed in this utility model.
[0030] Figure 3 This is a schematic diagram of the left side of the air spring repair stand proposed in this utility model.
[0031] Figure 4 This is a top view of the air spring repair stand proposed in this utility model.
[0032] Figure 5 This utility model Figure 1 Enlarged structural diagram at point A in the middle.
[0033] Attached Figure
[0034] 100. Support frame; 101. Bottom horizontal bar; 102. Top horizontal bar; 103. Vertical support bar; 104. Casters; 105. Storage panel;
[0035] 200. Left side platform; 201. First support column; 202. Positioning frame; 203. Clamping plate; 204. Support plate; 205. Rectangular opening; 206. Sliding bar; 207. Connecting plate; 208. Horizontal threaded rod; 209. Rudder;
[0036] 300. Right side frame; 301. Mounting plate; 302. Second support column; 303. Clamping plate; 304. Inflation valve; 305. Pressure gauge; 306. Sliding sleeve; 307. Angle positioning block; 308. Fixing plate; 309. Vertical threaded rod; 3010. Rotating handle. Detailed Implementation
[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0038] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 this utility model.
[0039] Reference Figures 1 to 5 Air spring repair stand, including:
[0040] The support frame 100 includes a bottom horizontal bar 101, a top horizontal bar 102, and a vertical support bar 103.
[0041] Reference Figure 1 In a preferred embodiment, there are four bottom horizontal bars 101, four top horizontal bars 102, and four vertical support bars 103. The beginning and end of the four bottom horizontal bars 101 and the four top horizontal bars 102 are fixed by welding, and the four vertical support bars 103 are welded and fixed in a rectangular array in the middle of the four bottom horizontal bars 101 and the four top horizontal bars 102.
[0042] Specifically, by setting four bottom horizontal bars 101, a top horizontal bar 102, and a vertical support bar 103, the support frame 100 can form a three-dimensional rectangular frame structure, thereby improving the overall stability.
[0043] Reference Figure 1 In a preferred embodiment, the lower surfaces of the four bottom horizontal bars 101 are provided with four casters 104 in a rectangular array, and the upper surfaces of the four bottom horizontal bars 101 are provided with storage plates 105.
[0044] Specifically, the universal wheels 104 facilitate the movement of the stand, while the storage board 105 allows for the placement of sheet metal storage boxes to store tools.
[0045] The left side frame 200 is used to fix and disassemble the air spring. The left side frame 200 includes four first support columns 201 welded and fixed in a rectangular array to the surface of the top horizontal bar 102, and a positioning frame 202 fixed to the top of the four first support columns 201 by bolts. The inner wall of the positioning frame 202 is slidably provided with a clamping plate 203. The left side frame 200 also includes a support plate 204 fixed to the surface of the top horizontal bar 102 by bolts and corresponding to the positioning frame 202.
[0046] Reference Figure 1 and Figure 5 In a preferred embodiment, the inner wall of the positioning frame 202 is provided with a rectangular opening 205, the clamping plate 203 is slidably connected to the inner wall of the rectangular opening 205, and two symmetrical slide bars 206 are fixed on the outer surface of the clamping plate 203, and the inner wall of the rectangular opening 205 is provided with a slide groove for the slide bars 206 to slide.
[0047] Specifically, by setting the slide bar 206, the stability of the clamping plate 203 during movement is effectively guaranteed.
[0048] Reference Figure 1 and Figure 5 In a preferred embodiment, a connecting plate 207 is fixed to the inner wall of the rectangular opening 205 by bolts. A transverse threaded hole is provided on the side of the connecting plate 207. A transverse threaded rod 208 is threaded to the inner wall of the transverse threaded hole. One end of the transverse threaded rod 208 is rotatably connected to the surface of the clamping plate 203. A rudder 209 is fixed to the other end of the transverse threaded rod 208.
[0049] Specifically, by setting a transverse threaded rod 208, the rudder 209 can rotate the transverse threaded rod 208, thereby driving the clamping plate 203 to clamp and fix the air spring.
[0050] In this invention, by setting up a left-side platform 200, the air spring can be clamped and fixed inside the positioning frame 202 when it is being repaired, which makes it easier for personnel to disassemble the air spring. Moreover, it can be operated by one person, saving manpower and material costs.
[0051] The right-side platform 300 is used to detect air leakage of the air spring. The right-side platform 300 includes a mounting plate 301 fixed to the surface of the top horizontal bar 102 by bolts, and two second support columns 302 welded to the upper surface of the mounting plate 301. The surfaces of the two second support columns 302 are slidably provided with pressure plates 303. The surface of the support frame 100 is provided with an inflation valve 304 corresponding to the right-side platform 300, and the surface of the inflation valve 304 is provided with a pressure gauge 305.
[0052] Reference Figure 1 and Figure 2 In a preferred embodiment, the surface of the clamping plate 303 has two mounting holes, and the inner walls of the two mounting holes are fixedly provided with sliding sleeves 306. The inner walls of the two sliding sleeves 306 are slidably connected to the outer surfaces of the two second support columns 302 respectively. An angle positioning block 307 is fixedly provided on the lower surface of the clamping plate 303, and the angle positioning block 307 is made of magnetic material.
[0053] Specifically, by setting the angle positioning block 307, the angle positioning of the air spring pressure holding valve can be achieved.
[0054] Reference Figure 1 In a preferred embodiment, the top ends of the two second support columns 302 are fixed with a fixing plate 308 by bolts, and the surface of the fixing plate 308 is provided with a vertical threaded hole. The inner wall of the vertical threaded hole is threaded with a vertical threaded rod 309. The bottom end of the vertical threaded rod 309 is rotatably connected to the upper surface of the pressure plate 303, and the top end of the vertical threaded rod 309 is fixed with a rotating handle 3010.
[0055] Specifically, by setting a vertical threaded rod 309, the rotation of the vertical threaded rod 309 can drive the pressure plate 303 to move downward, thereby compressing the air spring.
[0056] In this invention, by setting up a right-side stand 300, the air spring can be tested for air pressure during the sealing test, and the air spring can be tested for leakage by observing the changes in the pressure gauge 305.
[0057] Working principle: When repairing the air spring, the bottom end of the air spring can be placed on the support plate 204, and the horizontal threaded rod 208 can be rotated by the rudder 209. The rotation of the horizontal threaded rod 208 drives the clamping plate 203 to move, clamping and fixing the air spring inside the positioning frame 202, thus facilitating personnel to disassemble the air spring. Moreover, when testing the air spring's sealing performance, the air spring can be placed on the mounting plate 301, and the rotating handle 3010 can be rotated to drive the vertical threaded rod 309 to rotate. The rotation of the vertical threaded rod 309 drives the pressure plate 303 to move downward, allowing the air spring to be compressed to the design height. The air inflation valve 304 connects the external air source and the air spring respectively to realize the inflation test of the air spring. The air spring leakage can be detected by observing the change of the pressure gauge 305.
[0058] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.
Claims
1. A spring repair stand, characterized in that, include: The support frame (100) includes a bottom horizontal bar (101), a top horizontal bar (102) and a vertical support bar (103). The left side frame (200) is used to fix and disassemble the air spring. The left side frame (200) includes four first support columns (201) welded and fixed in a rectangular array to the surface of the top horizontal bar (102), and a positioning frame (202) fixed to the top of the four first support columns (201) by bolts. The inner wall of the positioning frame (202) is slidably provided with a clamping plate (203). The left side frame (200) also includes a support plate (204) fixed to the surface of the top horizontal bar (102) by bolts and corresponding to the positioning frame (202). The right-side platform (300) is used to detect air leakage of the air spring. The right-side platform (300) includes a mounting plate (301) fixed to the surface of the top horizontal bar (102) by bolts, and two second support columns (302) welded to the upper surface of the mounting plate (301). The surfaces of the two second support columns (302) are slidably provided with pressure plates (303). The surface of the support frame (100) is provided with an inflation valve (304) corresponding to the right-side platform (300), and the surface of the inflation valve (304) is provided with a pressure gauge (305).
2. The air spring repair stand according to claim 1, characterized in that, The number of bottom horizontal bars (101), top horizontal bars (102) and vertical support bars (103) are all four. The beginning and end of the four bottom horizontal bars (101) and the four top horizontal bars (102) are fixed by welding, and the four vertical support bars (103) are welded and fixed in a rectangular array in the middle of the four bottom horizontal bars (101) and the four top horizontal bars (102).
3. The air spring repair stand according to claim 1, characterized in that, The lower surfaces of the four bottom horizontal bars (101) are provided with four casters (104) in a rectangular array, and the upper surfaces of the four bottom horizontal bars (101) are provided with storage plates (105).
4. The air spring repair stand according to claim 1, characterized in that, The inner wall of the positioning frame (202) is provided with a rectangular opening (205), the clamping plate (203) is slidably connected to the inner wall of the rectangular opening (205), and two symmetrical slide bars (206) are fixed on the outer surface of the clamping plate (203). The inner wall of the rectangular opening (205) is provided with a sliding groove for the slide bars (206) to slide.
5. The air spring repair stand according to claim 4, characterized in that, The inner wall of the rectangular opening (205) is fixed with a connecting plate (207) by bolts. The side of the connecting plate (207) is provided with a transverse threaded hole. The inner wall of the transverse threaded hole is threaded with a transverse threaded rod (208). One end of the transverse threaded rod (208) is rotatably connected to the surface of the clamping plate (203), and the other end of the transverse threaded rod (208) is fixed with a rudder (209).
6. The air spring repair stand according to claim 1, characterized in that, The surface of the clamping plate (303) has two mounting holes, and the inner walls of the two mounting holes are fixed with sliding sleeves (306). The inner walls of the two sliding sleeves (306) are slidably connected to the outer surfaces of the two second support columns (302). An angle positioning block (307) is fixed on the lower surface of the clamping plate (303), and the angle positioning block (307) is made of magnetic material.
7. The air spring repair stand according to claim 1, characterized in that, The top ends of the two second support columns (302) are fixed with a fixing plate (308) by bolts, and the surface of the fixing plate (308) is provided with a vertical threaded hole. The inner wall of the vertical threaded hole is threaded with a vertical threaded rod (309). The bottom end of the vertical threaded rod (309) is rotatably connected to the upper surface of the pressure plate (303). The top end of the vertical threaded rod (309) is fixed with a rotating handle (3010).