Sand blasting device for inner container of water heater

Abstract

The utility model relates to the technical field of sand blasting devices, and discloses a water heater inner container sand blasting device which comprises a base plate, the top of the base plate is fixedly connected with a supporting column, the top of the supporting column is fixedly connected with a supporting plate, the top of the base plate is fixedly connected with a sand blasting machine, and the top of the sand blasting machine is provided with a spraying pipe. A limiting assembly is arranged in the supporting plate. The limiting assembly comprises a sliding column, the sliding column is slidably connected into the supporting plate, one end of the sliding column is fixedly connected with a fixing block, the other end of the sliding column is fixedly connected with a pull ring, one side of the fixing block is fixedly connected with a holding clamp, and the outer wall of the sliding column is sleeved with an elastic assembly. According to the sand blasting device, the outer wall of the inner container is attached to the holding clamp, and the holding clamp is extruded at the same time, so that the effect of limiting and fixing the inner container in the sand blasting process is achieved, the problem that the position of the inner container is deviated due to the fact that the inner container is stressed in the sand blasting process is solved, and the stability of the sand blasting device is improved.

Description

Technical Field

[0001] This utility model relates to the field of sandblasting equipment technology, and in particular to a sandblasting device for the inner tank of a water heater. Background Technology

[0002] As the core water storage component of a heat pump air source water heater, the surface treatment process of the inner tank directly determines the product's corrosion resistance and service life in high-temperature and high-humidity environments. Sandblasting technology, due to its high efficiency and environmental friendliness, is widely used for cleaning, rust removal, and roughening of the inner tank surface. In particular, for the condensate corrosion problem unique to heat pump systems, sandblasting can significantly improve coating adhesion. Traditional sandblasting devices use high-speed jet abrasive to impact the inner tank surface, removing the oxide layer and forming a uniform roughness on the stainless steel or enamel steel surface, laying the foundation for subsequent anti-corrosion spraying processes.

[0003] Existing sandblasting equipment typically uses mechanical clamping or gravity positioning to fix the inner liner. Mechanical clamping applies axial pressure from both ends of the inner liner using hydraulic or pneumatic clamps, using friction to prevent rotation or displacement. Gravity positioning relies on the static friction between the inner liner's own weight and the supporting platform to achieve fixation.

[0004] Existing sandblasting devices have significant drawbacks when fixing the inner tank. Due to the high-speed impact of the abrasive during sandblasting, a continuous dynamic load is generated. Traditional clamping or gravity fixing methods are difficult to effectively counteract this external force, resulting in micro-displacement or vibration of the inner tank. This displacement phenomenon is more prominent, especially for large-sized or thin-walled inner tanks. This not only reduces the sandblasting coverage but also causes uneven wall thickness due to local over-sandblasting. Therefore, a sandblasting device for the inner tank of a water heater is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a water heater inner tank sandblasting device, which aims to improve the problem that the inner tank is subjected to force during sandblasting, causing the position to shift.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a sandblasting device for the inner tank of a water heater, comprising a pad, a support column fixedly connected to the top of the pad, a support plate fixedly connected to the top of the support column, a sandblasting machine fixedly connected to the top of the pad, a spray pipe provided on the top of the sandblasting machine, and a limit component provided inside the support plate.

[0007] The limiting component includes a sliding column, which is slidably connected inside the support plate. A fixing block is fixedly connected to one end of the sliding column, and a pull ring is fixedly connected to the other end of the sliding column. A clamp is fixedly connected to one side of the fixing block. An elastic component is sleeved on the outer wall of the sliding column. A limiting column is fixedly connected to the outer wall of the clamp. The limiting column is slidably connected inside the support plate. A limiting ring is fixedly connected to the outer wall of the limiting column. A support frame is fixedly connected to the top of the support column. A collecting component is provided inside the support frame. A locking component is provided inside the support frame.

[0008] As a further description of the above technical solution:

[0009] The elastic component includes a spring, one end of which is fixedly connected to the side wall of the support plate, and the other end of which is fixedly connected to the side wall of the fixing block.

[0010] As a further description of the above technical solution:

[0011] The collection component includes a collection frame, which is slidably connected inside the support frame, and a handle is fixedly connected to the outer wall of the collection frame.

[0012] As a further description of the above technical solution:

[0013] The locking assembly includes a locking block and a connecting post. The connecting post is fixedly connected inside the support frame, and the locking block is rotatably connected to the outer wall of the connecting post.

[0014] As a further description of the above technical solution:

[0015] A fixing frame is provided on the outer wall of the support frame, and one side of the fixing frame is fixedly connected to the outer wall of the support frame.

[0016] As a further description of the above technical solution:

[0017] A second spring is provided inside the fixed frame. One end of the second spring is fixedly connected to the side wall of the card block, and the other end of the second spring is fixedly connected to the inner wall of the fixed frame.

[0018] As a further description of the above technical solution:

[0019] The collection frame has a groove inside, which fits into the outer wall of the nozzle.

[0020] As a further description of the above technical solution:

[0021] The inner wall of the card block engages with the outer wall of the collection frame, and the card block is rotatably connected inside the fixed frame.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the outer wall of the inner liner is in contact with the clamp, and the clamp is squeezed at the same time. This causes the fixing block and the sliding column to compress the spring. Then the spring releases its elasticity, thereby achieving the effect of limiting and fixing the inner liner during the sandblasting process. This solves the problem of the inner liner being subjected to force during sandblasting, which causes the position to shift, and improves the stability of the sandblasting device.

[0024] 2. In this utility model, the spring releases its elastic force to drive the locking block to rotate on the connecting column. At the same time, the connecting column is fixed inside the support frame. The outer wall of the locking block and the outer wall of the collection frame are used to lock the collection frame, which solves the problem of the collection frame for collecting waste materials accidentally sliding out during the operation of the sandblasting device and improves the safety of the device. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a sandblasting device for the inner tank of a water heater proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the clamping structure of a sandblasting device for the inner tank of a water heater proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the support frame structure of a sandblasting device for the inner tank of a water heater proposed in this utility model.

[0028] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Pad; 2. Support column; 3. Sandblasting machine; 4. Spray nozzle; 5. Support plate; 6. Support frame; 7. Clamp; 8. Fixing block; 9. Sliding column; 10. Spring 1; 11. Pull ring; 12. Limiting ring; 13. Limiting column; 14. Collection frame; 15. Handle; 16. Fixing frame; 17. Locking block; 18. Connecting column; 19. Spring 2. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 and Figure 2The present invention provides an embodiment of a water heater inner tank sandblasting device, comprising a pad 1, which supports the entire device and maintains the stability of the heat pump air source water heater inner tank during sandblasting. A support column 2 is fixedly connected to the top of the pad 1, which vertically supports the upper structure to accommodate the length of the heat pump inner tank. A support plate 5 is fixedly connected to the top of the support column 2, which is used to install a limiting component and bear the weight of the heat pump inner tank. A sandblasting machine 3 is fixedly connected to the top of the pad 1, which is used to sandblast the surface of the heat pump inner tank. A spray pipe 4 is provided on the top of the sandblasting machine 3, which is used to spray abrasive onto the surface of the heat pump inner tank. A limiting component is provided inside the support plate 5.

[0033] The limiting assembly includes a sliding post 9, which is used to adjust the position of the clamp 7 to accommodate heat pump inner tanks of different diameters. The sliding post 9 is slidably connected inside the support plate 5. A fixing block 8 is fixedly connected to one end of the sliding post 9 to enhance the connection strength of the clamp 7. A pull ring 11 is fixedly connected to the other end of the sliding post 9 to manually adjust the position of the sliding post 9. The clamp 7 is fixedly connected to one side of the fixing block 8 to hold and fix the heat pump inner tank to prevent movement during sandblasting. An elastic component is sleeved on the outer wall of the sliding post 9 to maintain the clamp 7's continuous support to the heat pump inner tank. The clamping force is provided by a limiting post 13 fixedly connected to the outer wall of the clamp 7. The limiting post 13 is used to limit the movement trajectory of the clamp 7. The limiting post 13 is slidably connected inside the support plate 5. The limiting post 13 is fixedly connected to the outer wall of the limiting post 13. The limiting ring 12 is used to prevent the limiting post 13 from falling out. A support frame 6 is fixedly connected to the top of the support post 2. The support frame 6 is used to accommodate the collection component. The collection component is set inside the support frame 6. The collection component is used to recover the waste generated by the sandblasting of the heat pump inner tank. A locking component is set inside the support frame 6. The locking component is used to fix the collection component to prevent it from falling off during the sandblasting of the heat pump inner tank.

[0034] Reference Figure 1 - Figure 4The elastic component includes a spring 10, one end of which is fixedly connected to the side wall of the support plate 5, and the other end of which is fixedly connected to the side wall of the fixing block 8. The spring 10 provides a continuous clamping force to ensure that the heat pump inner tank does not shift during sandblasting. The collection component includes a collection frame 14, which is slidably connected inside the support frame 6. The collection frame 14 is used to collect and recover the metal waste and abrasive generated during sandblasting of the heat pump inner tank. A handle 15 is fixedly connected to the outer wall of the collection frame 14, which facilitates the operator in cleaning up the waste after sandblasting of the heat pump inner tank. The locking component includes a locking block 17 and a connecting post 18. The connecting post 18 is fixedly connected inside the support frame 6 and serves as the rotation fulcrum of the locking block 17 for fixing the collection frame 14. The locking block 17 is rotatably connected to the outer wall of the connecting post 18 and is used to lock the collection frame 14 to prevent displacement during sandblasting of the heat pump inner tank. The support frame 6 has a fixed frame 16 on its outer wall. One side of the fixed frame 16 is fixedly connected to the outer wall of the support frame 6. The fixed frame 16 is used to install the second spring 19 and limit the movement range of the locking block 17. The second spring 19 is installed inside the fixed frame 16. One end of the second spring 19 is fixedly connected to the side wall of the locking block 17, and the other end of the second spring 19 is fixedly connected to the inner wall of the fixed frame 16. The second spring 19 is used to keep the locking block 17 locked to the collection frame 14. The collection frame 14 has a groove inside. The groove fits against the outer wall of the nozzle 4. The groove is used to seal the nozzle 4 to prevent abrasive from splashing when the heat pump inner tank is sandblasted. The inner wall of the locking block 17 engages with the outer wall of the collection frame 14. The locking block 17 fixes the position of the collection frame 14 by mechanical engagement. The locking block 17 is rotatably connected inside the fixed frame 16. The locking block 17 can rotate inside the fixed frame 16 to realize the quick locking and release of the collection frame 14.

[0035] Working Principle: When using a sandblasting device to treat the inner tank of a heat pump water heater, the inner wall of the inner tank is first fitted over the outside of the spray pipe 4. Simultaneously, the outer wall of the inner tank compresses the clamp 7. When the clamp 7 is under force, it simultaneously moves the fixing block 8 and the limiting post 13. The limiting post 13 moves the limiting ring 12, and slides inside the support plate 5, thus limiting the displacement of the clamp 7. At the same time, the movement of the fixing block 8 causes the sliding post 9 to slide inside the support plate 5, compressing the spring 10. Then, the spring 10 releases its elasticity, causing the clamp 7 to fit against the outer wall of the inner tank, thereby achieving the purpose of limiting and fixing the inner tank. When the inner tank produces fragments during the sandblasting process... When debris is discharged through the outlet at the bottom of the inner liner, it falls into the interior of the support frame 6 and is collected by the collection frame 14 inside the support frame 6. Then, by pulling the locking block 17, the second spring 19 is compressed, which unlocks the locking block 17 from the collection frame 14. Then, the collection frame 14 is pulled out by pulling the handle 15. When installing the collection frame 14, the outer wall of the collection frame 14 squeezes the locking block 17, causing the locking block 17 to rotate on the connecting post 18, while compressing the second spring 19. Then, the second spring 19 releases its elasticity, causing the locking block 17 to engage with the collection frame 14, thereby achieving the purpose of locking the collection component collection frame 14.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sandblasting device for the inner tank of a water heater, comprising a pad (1), characterized in that: The top of the pad (1) is fixedly connected to a support column (2), the top of the support column (2) is fixedly connected to a support plate (5), the top of the pad (1) is fixedly connected to a sandblasting machine (3), the top of the sandblasting machine (3) is provided with a spray pipe (4), and the support plate (5) is provided with a limit component inside. The limiting component includes a sliding column (9), which is slidably connected inside the support plate (5). One end of the sliding column (9) is fixedly connected to a fixing block (8), and the other end of the sliding column (9) is fixedly connected to a pull ring (11). A clamp (7) is fixedly connected to one side of the fixing block (8). An elastic component is sleeved on the outer wall of the sliding column (9). A limiting column (13) is fixedly connected to the outer wall of the clamp (7). The limiting column (13) is slidably connected inside the support plate (5). A limiting ring (12) is fixedly connected to the outer wall of the limiting column (13). A support frame (6) is fixedly connected to the top of the support column (2). A collecting component is provided inside the support frame (6), and a locking component is provided inside the support frame (6).

2. The water heater inner tank sandblasting device according to claim 1, characterized in that: The elastic component includes a spring (10), one end of which is fixedly connected to the side wall of the support plate (5), and the other end of which is fixedly connected to the side wall of the fixing block (8).

3. The water heater inner tank sandblasting device according to claim 1, characterized in that: The collection component includes a collection frame (14), which is slidably connected inside the support frame (6), and a handle (15) is fixedly connected to the outer wall of the collection frame (14).

4. The water heater inner tank sandblasting device according to claim 3, characterized in that: The locking assembly includes a locking block (17) and a connecting post (18). The connecting post (18) is fixedly connected inside the support frame (6), and the locking block (17) is rotatably connected to the outer wall of the connecting post (18).

5. A sandblasting device for the inner tank of a water heater according to claim 4, characterized in that: A fixing frame (16) is provided on the outer wall of the support frame (6), and one side of the fixing frame (16) is fixedly connected to the outer wall of the support frame (6).

6. A sandblasting device for the inner tank of a water heater according to claim 5, characterized in that: A second spring (19) is provided inside the fixed frame (16). One end of the second spring (19) is fixedly connected to the side wall of the card block (17), and the other end of the second spring (19) is fixedly connected to the inner wall of the fixed frame (16).

7. A sandblasting device for the inner tank of a water heater according to claim 3, characterized in that: The collection frame (14) has a groove inside, and the groove fits against the outer wall of the nozzle (4).

8. A sandblasting device for the inner tank of a water heater according to claim 4, characterized in that: The inner wall of the card block (17) engages with the outer wall of the collection frame (14), and the card block (17) is rotatably connected inside the fixed frame (16).

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