Stainless steel pipe corrosion resistance detection lifting appliance

Abstract

The utility model discloses a stainless steel pipe corrosion resistance detection lifting appliance which comprises a flat hook hung on a storage rod of a salt spray testing machine, an anti-skid rubber strip is fixed on the inner side of the flat hook, a connecting frame is fixed at the lower end of the flat hook, a hook-shaped frame is rotatably connected to the bottom of the connecting frame, and a horizontal knob is fixed on the hook-shaped frame. A first locking spring arranged on the surface of the hook-shaped frame in a sleeving mode is installed between the horizontal rotary knob and the connecting frame. The flat hook which can be stably installed on the object placing rod is used for hanging, the hook-shaped frame on the lower portion can rotate around the vertical axis and is supported by the first locking spring to achieve elastic self-locking, the clamping plate clamps and fixes a stainless steel pipe through the pipe clamp, and the pipe clamp can rotate around the connecting shaft and is provided with the second locking spring to achieve elastic self-locking. According to the device, the stainless steel pipe can be stably clamped and fixed, the stainless steel pipe can be closer to the actual installation condition to be kept horizontal or vertical without shaking, the hanging stability is prevented from being influenced by salt mist liquid drops and airflow, and therefore it is ensured that the test result is more scientific and more accurate.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe quality inspection technology, specifically to a stainless steel pipe corrosion resistance testing hanger. Background Technology

[0002] Stainless steel pipes undergo rigorous quality testing during research and development, production, and before leaving the factory to ensure stable performance in actual use. Salt spray testing is one of the many quality tests for stainless steel pipes. It simulates the effects of chemical environments on stainless steel pipe products using a salt spray testing machine, and is widely used to evaluate the durability of products in harsh environments. Its working principle involves atomizing a certain concentration of acid, alkali, or salt water into tiny droplets, creating a salt spray environment within a sealed test chamber. Through electrochemical action, this accelerates material corrosion, simulating corrosion problems encountered in actual use.

[0003] Existing salt spray testing machines lack specialized testing fixtures. They simply suspend the workpiece by binding a wire to the machine's support bar. While this is adequate for most workpieces and generally meets testing requirements, it is problematic for smooth stainless steel tubes. The surface becomes even smoother after water spray adheres during testing, leading to unstable suspension. If the flow rate of the atomized droplets is set too high, the stainless steel tube suspension can easily become unstable, failing to mimic the actual horizontal and vertical installation conditions where salt spray droplets adhere to the surface. An unstable suspension hinders the adhesion of salt spray droplets to the tube's surface, causing some distortion in the test results. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a stainless steel pipe corrosion resistance testing hanger, which solves the problem that existing salt spray testing machines do not have a dedicated testing hanger, making it difficult to stably suspend the smooth stainless steel pipe and hindering the adhesion of salt spray droplets to its surface, thus affecting the test results.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A stainless steel pipe corrosion resistance testing hanger includes a flat hook suspended on a bar of a salt spray tester. An anti-slip rubber strip is fixed to the inner side of the flat hook. A connecting frame is fixed to the lower end of the flat hook. A hook-shaped frame is rotatably connected to the bottom of the connecting frame. A horizontal knob is fixed on the hook-shaped frame. A locking spring sleeved on the surface of the hook-shaped frame is installed between the horizontal knob and the connecting frame.

[0007] The bottom horizontal portion of the hook-shaped frame has two symmetrically arranged clamping plates that move and intersect. A torsion spring is installed between the two clamping plates and sleeved on the surface of the hook-shaped frame. A connecting shaft is horizontally and movably inserted into the bottom of the opposing surfaces of the two clamping plates. A pipe clamp for receiving and measuring the stainless steel pipe is fixed at the opposite end of the connecting shaft, and an anti-slip rubber pad is fixed on the inner side of the pipe clamp. A vertical knob is fixed at the opposing end of the connecting shaft, and a locking spring two is installed between the vertical knob and the clamping plate and sleeved on the surface of the connecting shaft.

[0008] Preferably, the flat hook is an elastic plastic hook with a rectangular cross-section.

[0009] Preferably, the pipe clamp is a V-shaped plate.

[0010] Preferably, the flat hook, connecting frame, and hook-shaped frame are arranged in the same vertical direction.

[0011] Preferably, the clamping plate, pipe clamp, connecting shaft, vertical knob, and locking spring are all symmetrically arranged.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This invention uses a flat hook that can be stably installed on a bar for suspension. The hook-shaped frame below can rotate around a vertical axis and is supported by a locking spring to achieve elastic self-locking. The clamping plate holds and fixes the stainless steel pipe through a pipe clamp, which can rotate around a connecting shaft and is also supported by a locking spring to achieve elastic self-locking. This not only stably holds and fixes the stainless steel pipe, but also ensures that the stainless steel pipe remains horizontal or vertical without swaying, more closely resembling the actual installation situation. The suspension stability is not affected by salt spray droplets and airflow, thus ensuring more scientific and accurate test results. This invention solves the problem that existing salt spray test machines do not have a dedicated testing hanger, which makes it difficult to stably suspend the smooth stainless steel pipe, hindering the adhesion of salt spray droplets to its surface and affecting the test results. Attached Figure Description

[0014] Figure 1 This is a front view of the present utility model;

[0015] Figure 2 This is a side view of the present invention;

[0016] Figure 3 This is a schematic diagram of the stainless steel pipe suspension caused by rotating the horizontal knob 90° according to this utility model.

[0017] Figure 4 This is a schematic diagram of the stainless steel pipe suspension caused by rotating the vertical knob 90° according to this utility model.

[0018] In the diagram: 1. Storage rod; 2. Flat hook; 3. Anti-slip rubber strip; 4. Connecting frame; 5. Hook-shaped frame; 6. Horizontal knob; 7. Locking spring one; 8. Clamping plate; 9. Torsion spring; 10. Connecting shaft; 11. Stainless steel pipe; 12. Pipe clamp; 13. Anti-slip rubber pad; 14. Vertical knob; 15. Locking spring two. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figure 1-4 As shown, this utility model provides a technical solution: a stainless steel pipe corrosion resistance testing hanger, including a flat hook 2 suspended on a bar 1 of a salt spray tester. The flat hook 2 is an elastic plastic hook with a rectangular cross-section, which is interference-fitted with the bar 1. An anti-slip rubber strip 3 is fixed on the inner side of the flat hook 2 to achieve a stable fixing effect.

[0021] A connecting frame 4 is fixed to the lower end of the flat hook 2. A hook-shaped frame 5 is rotatably connected to the bottom of the connecting frame 4. A horizontal knob 6 is fixed on the hook-shaped frame 5. A locking spring 7 is installed between the horizontal knob 6 and the connecting frame 4 and is sleeved on the surface of the hook-shaped frame 5. Turning the horizontal knob 6 can adjust the horizontal direction of the lower clamping plate 8 and the stainless steel tube 11. The locking spring 7 supports the spring and achieves self-locking, preventing easy shaking.

[0022] Two symmetrically arranged clamping plates 8 are movably connected to the bottom horizontal part of the hook frame 5. A torsion spring 9 is installed between the two clamping plates 8 and sleeved on the surface of the hook frame 5. A connecting shaft 10 is movably inserted into the bottom horizontal part of the opposite side of the two clamping plates 8. A pipe clamp 12 is fixed at the opposite end of the connecting shaft 10 to hold the stainless steel pipe 11 to be measured. The pipe clamp 12 is a V-shaped plate, which can accommodate a large range of outer diameters of the stainless steel pipe 11, thereby improving practicality. In addition, an anti-slip rubber pad 13 is fixed on the inner side of the pipe clamp 12 to improve clamping stability.

[0023] A vertical knob 14 is fixed at the opposite end of the connecting shaft 10. A locking spring 15 is installed between the vertical knob 14 and the clamp 8 and sleeved on the surface of the connecting shaft 10. Turning the vertical knob 14 can adjust the vertical direction of the lower pipe clamp 12 and the stainless steel pipe 11. The locking spring 15 supports the spring and achieves self-locking, preventing easy shaking.

[0024] The flat hook 2, connecting bracket 4 and hook-shaped bracket 5 are set in the same vertical direction. The clamping plate 8, pipe clamp 12, connecting shaft 10, vertical knob 14 and locking spring 15 are all symmetrically arranged to provide a foundation for the stable vertical or horizontal fixation of the stainless steel pipe 11. This simulates the actual installation scenario and ensures that the corrosion resistance test of the stainless steel pipe 11 can be closer to the actual installation state.

[0025] Working principle:

[0026] Turn the vertical knob 14 to adjust the pipe clamp 12 to a horizontal or vertical position for horizontal or vertical clamping and fixing of the stainless steel pipe 11, simulating horizontal or vertical installation. Under the action of the locking spring 15, the vertical knob 14 is prevented from rotating relative to the clamping plate 8, thereby preventing the pipe clamp 12 from rotating and ensuring that the stainless steel pipe 11 is fixed at the horizontal or vertical angle. When fixing the stainless steel pipe 11 horizontally, the pipe clamp 12 is clamped on the middle surface of the stainless steel pipe 11. When fixing the stainless steel pipe 11 vertically, the pipe clamp 12 is clamped on the upper surface of the stainless steel pipe 11. The anti-slip rubber pad 13 increases the friction and ensures that the clamping and fixing is stable and firm.

[0027] The flat hook 2 is vertically attached to the rod 1 inside the closed test chamber of the salt spray test. Turning the horizontal knob 6 will cause the hook frame 5, the pipe clamp 12 and the stainless steel pipe 11 below to rotate around the vertical axis. The direction of the horizontally suspended stainless steel pipe 11 in the horizontal plane can be changed according to the arrangement requirements. Under the action of the locking spring 7, the direction of the stainless steel pipe 11 is prevented from changing due to the swaying of the salt spray airflow, ensuring that the position and angle of the stainless steel pipe 11 remain unchanged throughout the test, which is closer to the actual installation situation.

Claims

1. A stainless steel pipe corrosion resistance testing hanger, characterized in that: Includes a flat hook (2) suspended on a bar (1) of a salt spray tester. The inner side of the flat hook (2) is fixed with an anti-slip rubber strip (3). The lower end of the flat hook (2) is fixed with a connecting frame (4). The bottom of the connecting frame (4) is rotatably connected with a hook-shaped frame (5). A horizontal knob (6) is fixed on the hook-shaped frame (5). A locking spring (7) sleeved on the surface of the hook-shaped frame (5) is installed between the horizontal knob (6) and the connecting frame (4). The bottom horizontal part of the hook frame (5) is connected to two symmetrically arranged clamping plates (8). A torsion spring (9) is installed between the two clamping plates (8) and sleeved on the surface of the hook frame (5). A connecting shaft (10) is horizontally inserted into the bottom of the opposite side of the two clamping plates (8). A pipe clamp (12) for holding the stainless steel pipe (11) to be measured is fixed at the opposite end of the connecting shaft (10). An anti-slip pad (13) is fixed on the inner side of the pipe clamp (12). A vertical knob (14) is fixed at the opposite end of the connecting shaft (10). A locking spring (15) is installed between the vertical knob (14) and the clamping plate (8) and sleeved on the surface of the connecting shaft (10).

2. The stainless steel pipe corrosion resistance testing hanger according to claim 1, characterized in that: The flat hook (2) is an elastic plastic hook with a rectangular cross-section.

3. The stainless steel pipe corrosion resistance testing hanger according to claim 1, characterized in that: The pipe clamp (12) is a V-shaped plate.

4. The stainless steel pipe corrosion resistance testing hanger according to claim 1, characterized in that: The flat hook (2), connecting frame (4) and hook-shaped frame (5) are arranged in the same vertical direction.

5. The stainless steel pipe corrosion resistance testing hanger according to claim 1, characterized in that: The clamp (8), pipe clamp (12), connecting shaft (10), vertical knob (14) and locking spring (15) are all symmetrically arranged.

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