A repairing device for damaged enameled equipment nozzle

The repair device, which combines shape memory metal and rubber strips, solves the problem of damage to the nozzles of enamel equipment during transportation. It provides stable support, avoids scratches, simplifies operation, and improves repair efficiency and sealing performance.

CN224551106UActive Publication Date: 2026-07-24CANGZHOU NUOXIN NEW MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CANGZHOU NUOXIN NEW MATERIAL CO LTD
Filing Date
2025-10-10
Publication Date
2026-07-24

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Abstract

The utility model discloses a kind of enamelling equipment pipe orifice damage is repaired with repairing device, the utility model relates to the enamelling pipe orifice repair technical field, the utility model, comprising: base, connecting piece, the side wall of the base is fixedly connected with the side wall of connecting piece, the connecting piece is fixedly connected with the top of external workbench by bolt, the inner wall of the base is rotatably connected with rotary table;By setting the cooperation of each component, base is bolted with workbench through connecting piece, realize device firm installation, avoid displacement shaking when operating, memory metal circumferential array arrangement, combined shape memory effect sticks to pipe orifice inner wall, outer wall rubber strip and pipe orifice flexible contact, both guarantee pipe orifice stable support, prevent enamelling layer scratch and damage, pipe orifice deformation, protect workpiece integrity, memory metal upper end dovetail block and connecting ring sliding fit, sliding connecting ring can adjust memory metal opening angle, without replacing component adaptation different inner diameter pipe orifice, rotary table side wall paddle circumferential distribution purpose.
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Description

Technical Field

[0001] This utility model relates to the field of enamel pipe end repair technology, specifically a repair device for damaged enamel equipment pipe ends. Background Technology

[0002] In industries such as chemical, pharmaceutical, and food processing, enamel-lined equipment is widely used in the storage, reaction, and transportation of various materials due to its excellent corrosion resistance, high temperature resistance, and smooth, easy-to-clean surface. However, during transportation, it is prone to damage such as enamel layer peeling off, cracking, and deformation.

[0003] The enamel layer on the surface of enamel-coated materials is relatively brittle. Traditional repairs often use rigid clamps to directly clamp the pipe opening for fixation. The hard contact between the clamp and the pipe opening can easily cause further scratching and wear of the enamel layer, and even lead to deformation of the pipe opening, damaging the original structure of the workpiece. Although some repair methods attempt to reduce damage by padding with soft materials, soft materials are prone to displacement and cannot form uniform support. It is still difficult to avoid uneven local stress on the pipe opening during the repair process, which affects the sealing performance and service life of the pipe opening after repair. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a repair device for damaged pipe openings in enamel equipment, which solves the problems of easily damaged workpieces, poor versatility, and cumbersome operation.

[0005] To solve the above problems, this utility model achieves the following technical solution: a repair device for damaged enamel equipment pipe openings, comprising: a base, a connector, the side wall of the base being fixedly connected to the side wall of the connector, the connector being fixedly connected to the top of an external workbench by bolts, a turntable being rotatably connected to the inner wall of the base, and a shape memory metal being fixedly connected to the top of the turntable, the outer wall of the shape memory metal being arranged in a circumferential array along the central axis of the turntable. In the device, the base is bolted to the external workbench via the connector. This detachable fixing method not only achieves a firm connection between the device and the workbench, avoiding displacement or shaking of the device during the repair process, but also allows for flexible adjustment of the device's position on the workbench according to actual operational needs. The shape memory metal itself has a unique shape memory effect, and its structure of circumferential array along the central axis of the turntable can conform to the inner wall of enamel equipment pipe openings of different inner diameter specifications, forming a uniform support force on the pipe opening.

[0006] Preferably, a rubber strip is bonded to the outer wall of the shape memory metal, and the outer wall of the rubber strip is in contact with the opening of the workpiece. The rubber strip bonded to the outer wall of the shape memory metal is in direct contact with the opening of the workpiece. The rubber material has good elasticity and cushioning properties, which can avoid scratching, wear or deformation of the enamel layer or the opening caused by hard contact between the shape memory metal and the opening.

[0007] Preferably, a dovetail block is fixedly connected to the end of the shape memory metal away from the rubber strip. The dovetail block is located at the upper end of the shape memory metal. The operator can move the dovetail block along the length of the shape memory metal by sliding the connecting ring, thereby changing the opening angle and support range of the shape memory metal, so that the device can be adapted to more enamel equipment nozzles with different inner diameters and different degrees of damage.

[0008] Preferably, the outer wall of the dovetail block is slidably connected with a connecting ring.

[0009] Preferably, the outer wall of the connecting ring is slidably connected to the outer wall of the shape memory metal.

[0010] Preferably, the turntable is fixedly connected to a paddle, and the outer wall of the paddle is arranged in a circumferential array along the central axis of the turntable. The paddles fixed to the side wall of the turntable are arranged in a circumferential array along the central axis of the turntable. The operator can easily drive the turntable to rotate around the inner wall of the base by moving the paddle. Beneficial effects

[0011] This utility model provides a repair device for damaged pipe ends in enamel-lined equipment. It has the following beneficial effects: This utility model, through the coordinated arrangement of various components, achieves stable installation of the device by fixing the base to the workbench with bolts via connecting parts, preventing displacement and shaking during operation. The shape memory metal is arranged in a circumferential array, conforming to the inner wall of the pipe opening due to the shape memory effect, while the outer wall rubber strip makes flexible contact with the pipe opening, ensuring stable support for the pipe opening and preventing scratches on the enamel layer and deformation of the pipe opening, thus protecting the integrity of the workpiece. The dovetail block at the upper end of the shape memory metal slides into the connecting ring, allowing adjustment of the opening angle of the shape memory metal without replacing parts to adapt to different inner diameter pipe openings. The turntable side wall has circumferentially distributed paddles, which can rotate the turntable and the pipe opening by moving the paddles, allowing the operator to repair different positions of the pipe opening without moving. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This utility model Figure 2 A magnified structural diagram of point A in the middle.

[0013] In the diagram: 1. Base; 2. Turntable; 3. Memory metal; 4. Rubber strip; 5. Dovetail block; 6. Connecting ring; 7. Paddle; 8. Connector. Detailed Implementation

[0014] 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

[0015] Please see Figure 1-3 This utility model provides a technical solution: a repair device for damaged pipe openings in enamel equipment, comprising: The base 1 and the connector 8 are fixedly connected. The side wall of the base 1 and the side wall of the connector 8 are fixedly connected. The connector 8 is fixedly connected to the top of the external workbench by bolts. The base 1 is fixed to the workbench by the connector 8. Then the workpiece is placed on the outer wall of the shape memory metal 3 and fixed. Before operation, the connector 8 fixed to the side wall of the base 1 is fastened to the top of the external workbench by bolts to make the base 1 stably fixed on the workbench, so as to avoid the displacement or shaking of the device during the subsequent repair process and provide a stable foundation for the repair operation. A turntable 2 is rotatably connected to the inner wall of the base 1. A shape memory metal 3 is fixedly connected to the top of the turntable 2. The outer wall of the shape memory metal 3 is arranged in a circular array along the central axis of the turntable 2. A rubber strip 4 is bonded to the outer wall of the shape memory metal 3. The outer wall of the rubber strip 4 contacts the pipe opening of the object being processed. Then, the staff puts the pipe opening of the enamel equipment to be repaired onto the outside of the shape memory metal 3 at the top of the turntable 2. Since the shape memory metal 3 is arranged in a circular array along the central axis of the turntable 2 and has a shape memory effect, it can initially fit the inner wall of the pipe opening. During this process, the connecting ring 6 is fixed to the upper end of the shape memory metal 3 by the dovetail block 5 and is located inside the object being processed. Then, the staff pulls the shape memory metal 3 to all sides. Its opening angle is consistent with the support range of the object being processed. The rubber strip 4 bonded to the outer wall of the shape memory metal 3 fits tightly against the inner wall of the pipe opening. The rubber strip 4 not only avoids hard contact between the shape memory metal 3 and the pipe opening, but also enhances the fixing stability of the pipe opening, realizing flexible fixing of the pipe opening. A dovetail block 5 is fixedly connected to the end of the shape memory metal 3 away from the rubber strip 4. The dovetail block 5 is located at the upper end of the shape memory metal 3. A connecting ring 6 is slidably connected to the outer wall of the dovetail block 5. The outer wall of the connecting ring 6 is slidably connected to the outer wall of the shape memory metal 3. A lever 7 is fixedly connected to the side wall of the turntable 2. The outer wall of the lever 7 is arranged in a circular array along the central axis of the turntable 2. After the pipe opening is fixed, the operator can move the lever 7 arranged in a circular array on the side wall of the turntable 2 to drive the turntable 2 to rotate around the inner wall of the base 1. When the turntable 2 rotates, the memory metal 3 fixed at the top and the fixed pipe opening rotate synchronously. The operator does not need to move his own position or adjust the whole equipment to continuously repair the damaged parts at different circumferential positions of the pipe opening. It is especially suitable for scenarios of ring damage and multi-point damage of the pipe opening, which significantly reduces the operation steps and adjustment time.

[0016] In use, the base 1 is fixed to the worktable via the connector 8, and then the workpiece is placed on the outer wall of the shape memory metal 3 and fixed thereon. Before operation, use the connector 8 fixed to the side wall of the base 1 to fasten the connector 8 to the top of the external workbench with bolts, so that the base 1 is stably fixed on the workbench, avoiding displacement or shaking of the device during subsequent repair, and providing a stable foundation for the repair operation. Subsequently, the staff placed the enamel equipment pipe to be repaired on the outside of the shape memory metal 3 at the top of the turntable 2. Since the shape memory metal 3 is arranged in a circular array along the central axis of the turntable 2 and has a shape memory effect, it can initially fit the inner wall of the pipe. During this process, the connecting ring 6 is fixed to the upper end of the shape memory metal 3 by the dovetail block 5, and both are located inside the workpiece. The staff then pulled the shape memory metal 3 to all sides, and its opening angle was consistent with the support range of the processing object. The rubber strip 4 bonded to the outer wall of the shape memory metal 3 was tightly attached to the inner wall of the pipe opening. The rubber strip 4 not only prevented the shape memory metal 3 from making hard contact with the pipe opening, but also enhanced the fixing stability of the pipe opening, thus achieving flexible fixing of the pipe opening. Once the pipe opening is fixed, the operator can move the paddles 7 arranged in a circular array on the side wall of the turntable 2 to drive the turntable 2 to rotate around the inner wall of the base 1. When the turntable 2 rotates, the memory metal 3 fixed at the top and the fixed pipe opening rotate synchronously. The operator can continuously repair the damaged parts at different circumferential positions of the pipe opening without moving their own position or adjusting the whole equipment. It is especially suitable for scenarios of ring-shaped damage and multi-point damage of the pipe opening, which significantly reduces the operation steps and adjustment time.

[0017] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0018] 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 these 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 repair device for damaged pipe ends of enamel-lined equipment, comprising: The base (1) and connector (8) are characterized by: The side wall of the base (1) is fixedly connected to the side wall of the connector (8), and the connector (8) is fixedly connected to the top of the external workbench by bolts. The inner wall of the base (1) is rotatably connected to a turntable (2), and the top of the turntable (2) is fixedly connected to a memory metal (3). The outer wall of the memory metal (3) is arranged in a circular array along the central axis of the turntable (2).

2. The repair device for damaged pipe openings in enamel-lined equipment according to claim 1, characterized in that: A rubber strip (4) is bonded to the outer wall of the shape memory metal (3), and the outer wall of the rubber strip (4) is in contact with the opening of the processing object.

3. The repair device for damaged pipe ends of enamel equipment according to claim 1, characterized in that: The shape memory metal (3) is fixedly connected to a dovetail block (5) at the end away from the rubber strip (4), and the dovetail block (5) is located at the upper end of the shape memory metal (3).

4. A repair device for damaged pipe ends of enamel-lined equipment according to claim 3, characterized in that: The outer wall of the dovetail block (5) is slidably connected to a connecting ring (6).

5. A repair device for damaged pipe openings in enamel-lined equipment according to claim 4, characterized in that: The outer wall of the connecting ring (6) is slidably connected to the outer wall of the shape memory metal (3).

6. A repair device for damaged pipe ends of enamel-lined equipment according to claim 1, characterized in that: The turntable (2) is fixedly connected to a lever (7) on its side wall, and the outer wall of the lever (7) is arranged in a circular array along the central axis of the turntable (2).