A rust-proofing device for the surface of a stainless steel pipe fitting
The positioning and sandblasting mechanism driven by hydraulic cylinders and electric push rods solves the problem of swaying of stainless steel pipe fittings during sandblasting, achieving stable positioning and flexible sandblasting of the pipe fittings, and improving the quality and effect of rust prevention treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU XINGYANG PIPE FITTINGS SHARE CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-31
AI Technical Summary
Stainless steel pipe fittings may wobble during sandblasting due to a lack of secure fixing, affecting the sandblasting quality and rust prevention effect.
The positioning and sandblasting mechanisms are driven by hydraulic cylinders and electric push rods. The hydraulic cylinders control the unfolding and clamping of the fitting rods, while the electric push rods adjust the sandblasting angle, thus achieving stable positioning and flexible sandblasting of the fittings during the sandblasting process.
To ensure the pipe fittings remain stable and do not shake during sandblasting, improve the quality and comprehensiveness of the rust prevention treatment, and enhance the rust prevention effect.
Smart Images

Figure CN224575423U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stainless steel pipe fittings technology, specifically to a rust prevention treatment device for stainless steel pipe fittings. Background Technology
[0002] Stainless steel pipe fittings are a general term for pipe connectors, conversion parts and other components made of stainless steel. They play a key role in the piping system. In terms of material characteristics, stainless steel is the main raw material. Due to the addition of elements such as chromium and nickel, stainless steel has excellent corrosion resistance and can be used for a long time in harsh environments such as humidity, acid and alkali without easily rusting, thus extending the service life of the piping system.
[0003] Sandblasting is a commonly used surface treatment method for rust prevention of stainless steel pipe fittings. However, a key issue affecting the quality of the treatment is that during sandblasting, high-speed abrasive particles continuously impact the surface of the stainless steel pipe fitting. Due to the lack of sufficient stability in the pipe fitting, it is prone to shaking under repeated impacts from the abrasive particles. This shaking is not slight and controllable, but rather intensifies as sandblasting continues. Once the pipe fitting shakes, the originally uniform and precise sandblasting effect is disrupted. The abrasive particles cannot evenly cover the surface of the pipe fitting according to the predetermined trajectory and force, resulting in over-sandblasting in some areas and under-sandblasting in others. This not only significantly reduces the rust prevention effect of the pipe fitting surface but may also affect subsequent coating adhesion and other processes, thereby reducing the overall rust prevention performance and service life of the stainless steel pipe fitting.
[0004] Therefore, a rust prevention treatment device for stainless steel pipe fittings is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide a rust prevention treatment device for stainless steel pipe fittings, which solves the technical problem that the shaking of the pipe fittings during the sandblasting process affects the quality of the rust prevention treatment, and achieves the purpose of ensuring that the pipe fittings are stable and do not shake during the sandblasting process.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a stainless steel pipe fitting surface anti-rust treatment device, comprising a base plate, a placement platform fixedly disposed on the top surface of the base plate, an installation frame fixedly disposed on the top surface of the placement platform, a positioning mechanism disposed at the upper end of the installation frame, and sandblasting mechanisms disposed on both the left and right sides of the positioning mechanism.
[0007] The positioning mechanism includes a lifting part and a locking part;
[0008] The sandblasting mechanism includes a sandblasting section and an adjustment section.
[0009] Preferably, the lifting unit includes a hydraulic cylinder, the bottom surface of which is fixedly connected to the top surface of the mounting frame, the output shaft of which passes through the mounting frame and extends to the bottom of the mounting frame, and a lifting frame is fixedly installed on the bottom surface of the output shaft of which the hydraulic cylinder is activated. When the hydraulic cylinder is activated, the output shaft of which the hydraulic cylinder extends and pushes the lifting frame to move downward.
[0010] Preferably, the engaging part includes a second hydraulic cylinder, which is fixedly installed inside the lifting frame. The output shaft of the second hydraulic cylinder passes through the lifting frame and extends to the bottom of the lifting frame. A lifting seat is fixedly installed on the bottom surface of the output shaft of the second hydraulic cylinder, and a positioning rod is fixedly installed on the bottom surface of the lifting seat.
[0011] Preferably, a positioning frame is fixedly installed on the bottom surface of the lifting frame, and the positioning rod is located inside the positioning frame. The lower end of the positioning rod passes through the positioning frame and is slidably connected to the positioning frame. When the second hydraulic cylinder is activated, the output shaft of the second hydraulic cylinder extends and pushes the lifting seat to move downward. The lifting seat drives the positioning rod to move downward within the positioning frame.
[0012] Preferably, a connecting seat is fixedly installed inside the positioning frame, and a telescopic rod is fixedly installed on the outer side of the connecting seat. Four telescopic rods are evenly arranged. A hinge rod is hinged to the outer side of the lifting seat. Four hinge rods are evenly arranged. A fitting rod is hinged to the other end of the hinge rod. The telescopic end of the telescopic rod is fixedly connected to the adjacent fitting rod.
[0013] Preferably, the sandblasting section includes a fixed frame, the bottom surface of which is fixedly connected to the base plate. Two fixed frames are arranged on the left and right sides. A storage box is fixedly installed on the top surface of the fixed frame. A material conveying hose is fixedly installed at the lower end of the storage box. The lower end of the material conveying hose passes through the fixed frame and extends to the bottom of the fixed frame. A sandblasting seat is fixedly installed at the lower end of the material conveying hose. The material conveying hose transports the sandblasting material to the sandblasting seat.
[0014] Preferably, a fixing seat is fixedly installed inside the fixing frame, and a connecting rod is fixedly installed on the right side of the fixing seat, with the right end of the connecting rod hinged to the sandblasting seat.
[0015] Preferably, the adjusting part includes an electric push rod located below the connecting rod. The left end of the electric push rod is fixedly connected to the fixed base. Sliding blocks are fixedly provided on both the front and rear sides of the telescopic end of the electric push rod. A limiting frame is sleeved on the outer side of the sliding block. The sliding block is slidably connected to the inner wall of the limiting frame. The right end of the limiting frame is fixedly connected to the sandblasting seat. The telescopic movement of the electric push rod drives the sandblasting seat to rotate around the hinge point between the connecting rod and the fixed base, thereby adjusting the sandblasting angle of the sandblasting seat.
[0016] Compared with the prior art, the beneficial effects of this utility model are: this stainless steel pipe fitting surface anti-rust treatment device,
[0017] (1) This utility model uses hydraulic cylinder one to realize the lifting of the lifting frame and hydraulic cylinder two to realize the lifting of the lifting seat, thereby controlling the expansion and contraction of the bonding rod, clamping and positioning from the inside of the pipe, and the multiple bonding rods are evenly distributed, which can ensure that the pipe is stable and does not shake during the sandblasting process, thus improving the quality of rust prevention treatment.
[0018] (2) This utility model uses the extension and retraction of the electric push rod, combined with the sliding block sliding in the limit frame, to drive the sandblasting seat to rotate around the hinge point, thereby realizing flexible adjustment of the sandblasting angle. It can adjust the sandblasting direction according to the needs of different parts of the pipe fitting, making the sandblasting treatment more comprehensive and improving the rust prevention effect. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;
[0020] Figure 2 This is a three-dimensional view of the positioning mechanism of this utility model;
[0021] Figure 3 This is a partial perspective view of the positioning mechanism of this utility model;
[0022] Figure 4 This is a three-dimensional view of the sandblasting mechanism of this utility model.
[0023] In the diagram: 1. Base plate, 2. Placement platform, 3. Mounting frame, 4. Positioning mechanism, 41. Hydraulic cylinder one, 42. Lifting frame, 43. Hydraulic cylinder two, 44. Lifting seat, 45. Positioning rod, 46. Positioning frame, 47. Connecting seat, 48. Telescopic rod, 49. Hinge rod, 410. Adhesive rod, 5. Sandblasting mechanism, 51. Fixing frame, 52. Storage box, 53. Sandblasting seat, 54. Fixing seat, 55. Connecting rod, 56. Electric push rod, 57. Sliding block, 58. Limiting frame. Detailed Implementation
[0024] 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. Example
[0025] Based on the existing problem that pipe fittings shaking during sandblasting affects the quality of rust prevention treatment, please refer to... Figures 1-4This utility model provides a technical solution: a stainless steel pipe surface anti-rust treatment device, including a base plate 1, a placement platform 2 fixedly installed on the top surface of the base plate 1, an installation frame 3 fixedly installed on the top surface of the placement platform 2, a positioning mechanism 4 installed at the upper end of the installation frame 3, and sandblasting mechanisms 5 installed on both the left and right sides of the positioning mechanism 4.
[0026] Positioning mechanism 4 includes a lifting part and a locking part;
[0027] The sandblasting mechanism 5 includes a sandblasting section and an adjustment section.
[0028] The lifting unit includes a hydraulic cylinder 41, the bottom surface of which is fixedly connected to the top surface of the mounting frame 3. The output shaft of the hydraulic cylinder 41 passes through the mounting frame 3 and extends to the bottom of the mounting frame 3. A lifting frame 42 is fixedly installed on the bottom surface of the output shaft of the hydraulic cylinder 41.
[0029] The engaging part includes a second hydraulic cylinder 43, which is fixedly installed inside the lifting frame 42. The output shaft of the second hydraulic cylinder 43 passes through the lifting frame 42 and extends to the bottom of the lifting frame 42. A lifting seat 44 is fixedly installed on the bottom surface of the output shaft of the second hydraulic cylinder 43, and a positioning rod 45 is fixedly installed on the bottom surface of the lifting seat 44.
[0030] A positioning frame 46 is fixedly installed on the bottom surface of the lifting frame 42. The positioning rod 45 is located inside the positioning frame 46, and the lower end of the positioning rod 45 passes through the positioning frame 46 and is slidably connected to the positioning frame 46.
[0031] A connecting seat 47 is fixedly installed inside the positioning frame 46. A telescopic rod 48 is fixedly installed on the outer side of the connecting seat 47. Four telescopic rods 48 are evenly arranged. A hinge rod 49 is hinged on the outer side of the lifting seat 44. Four hinge rods 49 are evenly arranged. A fitting rod 410 is hinged to the other end of the hinge rod 49. The telescopic end of the telescopic rod 48 is fixedly connected to the adjacent fitting rod 410.
[0032] Furthermore, in this embodiment, hydraulic cylinder 41 is activated, and its output shaft extends to push the lifting frame 42 downward, causing the entire locking part to descend to a suitable height. Hydraulic cylinder 43 is activated, and its output shaft extends to push the lifting seat 44 downward. The lifting seat 44 causes the positioning rod 45 to move downward within the positioning frame 46. Simultaneously, during the downward movement of the lifting seat 44, the hinge rod 49 pushes the contact rod 410 outward, and the telescopic rod 48 extends and retracts accordingly. The four contact rods 410 are evenly extended outward. After the pipe is placed on the placement platform 2, hydraulic cylinder 43 drives the lifting seat 44 downward, and the contact rods 410 extend outward under the action of the hinge rod 49, thereby clamping and positioning the pipe from the inside, completing the positioning operation of the pipe.
[0033] Furthermore, in this embodiment, the lifting frame 42 is raised and lowered by hydraulic cylinder 41 and the lifting seat 44 is raised and lowered by hydraulic cylinder 43, thereby controlling the expansion and contraction of the bonding rod 410, clamping and positioning it from inside the pipe. The multiple bonding rods 410 are evenly distributed, which can ensure that the pipe is stable and does not shake during the sandblasting process, thus improving the quality of rust prevention treatment. Example
[0034] Please see Figures 1-4 Furthermore, based on Embodiment 1, the following is obtained: the sandblasting section includes a fixed frame 51, the bottom surface of the fixed frame 51 is fixedly connected to the base plate 1, two fixed frames 51 are arranged on the left and right, a storage box 52 is fixedly installed on the top surface of the fixed frame 51, a material conveying hose is fixedly installed at the lower end of the storage box 52, the lower end of the material conveying hose passes through the fixed frame 51 and extends to the bottom of the fixed frame 51, and a sandblasting seat 53 is fixedly installed at the lower end of the material conveying hose.
[0035] A fixed base 54 is fixedly installed inside the fixed frame 51, and a connecting rod 55 is fixedly installed on the right side of the fixed base 54. The right end of the connecting rod 55 is hinged to the sandblasting base 53.
[0036] The adjustment unit includes an electric push rod 56, which is located below the connecting rod 55. The left end of the electric push rod 56 is fixedly connected to the fixed base 54. Sliding blocks 57 are fixedly provided on the front and rear sides of the telescopic end of the electric push rod 56. A limiting frame 58 is sleeved on the outer side of the sliding block 57. The sliding block 57 is slidably connected to the inner wall of the limiting frame 58. The right end of the limiting frame 58 is fixedly connected to the sandblasting base 53.
[0037] Furthermore, in this embodiment, the storage box 52 stores sandblasting material, which is transported to the sandblasting seat 53 through the material conveying hose. The initial position of the sandblasting seat 53 can be fixed at a certain angle by the hinge between the connecting rod 55 and the fixed seat 54. When it is necessary to adjust the sandblasting angle, the electric push rod 56 is activated. The sliding blocks 57 on the front and rear sides of the telescopic end of the electric push rod 56 slide in the limit frame 58. Since the right end of the limit frame 58 is fixedly connected to the sandblasting seat 53, the telescopic movement of the electric push rod 56 drives the sandblasting seat 53 to rotate around the hinge point between the connecting rod 55 and the fixed seat 54, thereby adjusting the sandblasting angle of the sandblasting seat 53 and performing sandblasting anti-rust treatment on the positioned pipe surface.
[0038] Furthermore, in this embodiment, the extension and retraction of the electric push rod 56, combined with the sliding of the sliding block 57 within the limiting frame 58, drives the sandblasting seat 53 to rotate around the hinge point, thereby achieving flexible adjustment of the sandblasting angle. This allows for adjustment of the sandblasting direction according to the needs of different parts of the pipe fitting, making the sandblasting treatment more comprehensive and improving the rust prevention effect.
[0039] In use, hydraulic cylinder 41 is activated, extending its output shaft and pushing the lifting frame 42 downwards, lowering the entire engaging part to a suitable height. Hydraulic cylinder 43 is then activated, extending its output shaft and pushing the lifting seat 44 downwards. The lifting seat 44 causes the positioning rod 45 to move downwards within the positioning frame 46. Simultaneously, as the lifting seat 44 moves downwards, the hinge rod 49 pushes the contact rod 410 outwards, causing the telescopic rod 48 to extend and retract accordingly. All four contact rods 410 extend outwards evenly. After the fitting is placed on the placement platform 2, hydraulic cylinder 43 moves the lifting seat 44 downwards, and the contact rods 410 extend outwards under the action of the hinge rod 49, thus engaging the fitting from the inside. The pipe fitting is clamped and positioned, completing the positioning operation. The storage box 52 stores sandblasting material, which is transported to the sandblasting seat 53 through the material conveying hose. The initial position of the sandblasting seat 53 can be fixed at a certain angle by the hinge between the connecting rod 55 and the fixed seat 54. When it is necessary to adjust the sandblasting angle, the electric push rod 56 is activated. The sliding blocks 57 on the front and rear sides of the telescopic end of the electric push rod 56 slide within the limit frame 58. Since the right end of the limit frame 58 is fixedly connected to the sandblasting seat 53, the telescopic movement of the electric push rod 56 drives the sandblasting seat 53 to rotate around the hinge point between the connecting rod 55 and the fixed seat 54, thereby adjusting the sandblasting angle of the sandblasting seat 53 and performing sandblasting anti-rust treatment on the positioned pipe fitting surface.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A stainless steel pipe surface rust-proof treatment device, comprising a base plate (1), characterized in that: The bottom plate (1) is fixedly provided with a placement platform (2), the placement platform (2) is fixedly provided with a mounting frame (3), the mounting frame (3) is provided with a positioning mechanism (4) at the upper end, and the positioning mechanism (4) is provided with a sandblasting mechanism (5) on both the left and right sides. The positioning mechanism (4) includes a lifting part and a locking part; The sandblasting mechanism (5) includes a sandblasting section and an adjustment section.
2. The device for rust-proof treatment of the surface of a stainless steel pipe according to claim 1, characterized in that: The lifting unit includes a hydraulic cylinder (41), the bottom surface of which is fixedly connected to the top surface of the mounting frame (3), the output shaft of which passes through the mounting frame (3) and extends to the bottom of the mounting frame (3), and a lifting frame (42) is fixedly provided on the bottom surface of the output shaft of the hydraulic cylinder (41).
3. The device for rust-proof treatment of the surface of a stainless steel pipe according to claim 2, characterized in that: The engaging part includes a second hydraulic cylinder (43), which is fixedly installed inside the lifting frame (42). The output shaft of the second hydraulic cylinder (43) passes through the lifting frame (42) and extends to the bottom of the lifting frame (42). A lifting seat (44) is fixedly installed on the bottom surface of the output shaft of the second hydraulic cylinder (43), and a positioning rod (45) is fixedly installed on the bottom surface of the lifting seat (44).
4. The device for rust-proof treatment of the surface of a stainless steel pipe according to claim 3, characterized in that: The bottom surface of the lifting frame (42) is fixedly provided with a positioning frame (46), and the positioning rod (45) is located inside the positioning frame (46). The lower end of the positioning rod (45) passes through the positioning frame (46) and is slidably connected with the positioning frame (46).
5. The device for rust-proof treatment of the surface of a stainless steel pipe according to claim 4, characterized in that: The positioning frame (46) is fixedly provided with a connecting seat (47) inside. The connecting seat (47) is fixedly provided with a telescopic rod (48) on its outer side. There are four telescopic rods (48) evenly arranged. The lifting seat (44) is hingedly provided with a hinge rod (49) on its outer side. There are four hinge rods (49) evenly arranged. The other end of the hinge rod (49) is hingedly provided with a fitting rod (410). The telescopic end of the telescopic rod (48) is fixedly connected to the adjacent fitting rod (410).
6. The device for rust-proof treatment of the surface of a stainless steel pipe according to claim 1, characterized in that: The sandblasting section includes a fixed frame (51), the bottom surface of which is fixedly connected to the base plate (1). Two fixed frames (51) are arranged on the left and right sides. A storage box (52) is fixedly installed on the top surface of the fixed frame (51). A material conveying hose is fixedly installed at the lower end of the storage box (52). The lower end of the material conveying hose passes through the fixed frame (51) and extends to the bottom of the fixed frame (51). A sandblasting seat (53) is fixedly installed at the lower end of the material conveying hose.
7. The device for rust-proof treatment of the surface of a stainless steel pipe according to claim 6, characterized in that: The fixing frame (51) is fixedly provided with a fixing seat (54) inside, and a connecting rod (55) is fixedly provided on the right side of the fixing seat (54). The right end of the connecting rod (55) is hinged to the sandblasting seat (53).
8. The device for rust-proof treatment of the surface of a stainless steel pipe according to claim 7, characterized in that: The adjustment unit includes an electric push rod (56), which is located below the connecting rod (55). The left end of the electric push rod (56) is fixedly connected to the fixed seat (54). Sliding blocks (57) are fixedly provided on the front and rear sides of the telescopic end of the electric push rod (56). A limiting frame (58) is sleeved on the outer side of the sliding block (57). The sliding block (57) is slidably connected to the inner wall of the limiting frame (58). The right end of the limiting frame (58) is fixedly connected to the sandblasting seat (53).