A novel graphite electrode connector plug

Abstract

This utility model discloses a novel graphite electrode connector plug in the field of graphite electrode production, comprising a shell, a cap, a sealing film, and connector plug material. The shell and cap are detachably connected to form a closed container, and the connector plug material is filled inside the closed container formed by the shell and cap. Multiple overflow holes are provided on the bottom of the shell. The sealing film is pre-installed on the inner side of the bottom of the shell to seal the overflow holes. The cap has a barbed structure and a chamfer. The barbed structure prevents the connector plug from falling out of the graphite electrode connector hole, and the chamfer facilitates installation. This utility model avoids the deformation problem of the connector plug during the firing process by separately processing the shell and cap, effectively ensuring the dimensional accuracy of the connector plug. The capsule-like structure fills the connector plug material into the closed container, eliminating the pressing and sintering processes in traditional processes, significantly simplifying the manufacturing process.

Description

Technical Field

[0001] This utility model relates to the field of graphite electrode production, specifically a novel graphite electrode connector plug. Background Technology

[0002] In graphite electrode production, graphite electrode connectors are typically installed on the graphite electrode connector to prevent the connector from detaching from the electrode body. Existing connectors are generally made from raw materials such as asphalt, rubber powder, and expanding agents through processes like mixing, pressing, and sintering. For example, in CN109732977A (a graphite electrode connector preparation device) and CN102363574A (a raw material formula for manufacturing ultra-high power graphite electrode connectors), the connector manufacturing process requires mixing, pressing, and sintering, each requiring specific equipment and process parameters. Due to the characteristics of the raw materials and the production process, the resulting connectors often suffer from fragility, burrs, and poor precision. When pre-installed in the connector holes of the graphite electrode connector, the connectors are often too large to install, or too small and break during transportation due to vibration. Furthermore, existing connectors require spring clips for fixation after insertion into the connector holes; these spring clips are small and require skilled operators.

[0003] Therefore, those skilled in the art have provided a novel graphite electrode connector plug to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a novel graphite electrode connector plug to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A novel graphite electrode connector includes a shell, a cap, a sealing film, and connector material. The shell and cap are detachably connected to form a closed container. The connector material fills the closed container formed by the shell and cap. The bottom of the shell has multiple overflow holes arranged in a ring array along the bottom of the shell. The sealing film is pre-installed on the inner side of the bottom of the shell to seal the overflow holes. The cap has barbs and chamfers. The barbs prevent the connector from falling out of the graphite electrode connector hole, and the chamfers facilitate installation.

[0006] As a further embodiment of this utility model: the barb structure consists of 3-4 elastic barbs, evenly distributed at 120° / 90°, with the angle between the barbs and the axis of the cap being 25°-30°, and the anti-detachment force being ≥50N and the installation force being ≤30N.

[0007] As a further embodiment of this utility model: the outer shell sidewall is integrally formed with an outer shell constraint feature, and the cap sidewall is integrally formed with a cap constraint feature that matches the outer shell constraint feature. The outer shell and the cap are detachably connected through the constraint feature, which is a snap or a thread.

[0008] As a further embodiment of this utility model: the outer shell and the cap are made of plastic or metal; when the material is plastic, they are prepared by injection molding; when the material is metal, they are prepared by stamping.

[0009] As a further improvement of this utility model: the sealing film is a polymer material that remains solid at room temperature and melts on its own when the ambient temperature reaches a preset value; the material of the sealing film is PE film or PP film.

[0010] As a further improvement of this utility model: the joint plug material is a mixture of asphalt, coke powder and expansion agent. When the ambient temperature reaches a preset value, the joint plug material melts and expands, and can overflow from the overflow hole.

[0011] As a further improvement of this utility model: when the constraint feature is a snap fastener, the outer shell constraint feature is an elastic snap protrusion, and the cap constraint feature is a slot adapted to the elastic snap protrusion. The disassembly force after the snap fastener connection is ≥100N to ensure the sealing performance of the closed container.

[0012] As a further improvement of this utility model: when the outer shell and the cap are made of stainless steel, their inner walls are coated with a high-temperature resistant and rust-proof coating (thickness 5-10μm, temperature resistance ≥200℃) to avoid chemical reaction with the connector bolt material.

[0013] As a further improvement of this utility model: a temperature-sensitive display is fixedly embedded at the end of the shell cap, and the temperature-sensitive display penetrates through the shell cap. The temperature-sensitive display can change color when the temperature changes to reflect the installation status.

[0014] As a further embodiment of this utility model, the outer shell is processed separately to avoid deformation of the connector during the firing process, thus ensuring the precision of the connector. The outer shell and the cap can be made by, but are not limited to, plastic injection molding, hot bending, and vacuum forming processes. The outer shell and the cap can also be made by, but are not limited to, metal stamping processes. The outer shell has, but is not limited to, a leakage port at the bottom for the overflow of raw materials due to thermal expansion. The outer shell and the cap have a connecting structure that works together, not limited to snaps and screws. The cap has, but is not limited to, barbed features that can lock itself when the novel structure electrode plug is inserted into the electrode plug hole. The inner side of the leakage hole on the outer shell has a sealing film that melts when heated, for sealing the leakage hole at room temperature. The sealing film material is not limited to PE, PP, etc.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model processes the outer shell and the cap separately to form a new outer shell structure, which avoids the deformation problem of the connector bolt during the firing process, effectively ensuring the dimensional accuracy of the connector bolt. The capsule structure fills the connector bolt material into a closed container, eliminating the pressing and sintering processes in the traditional process, and significantly simplifying the manufacturing process.

[0016] 2. The cap surface of this utility model has a barbed structure, which can automatically lock after the connector plug is inserted into the connector plug hole, eliminating the need for additional retaining springs and reducing installation difficulty; at the same time, the chamfered features on the cap further facilitate the installation operation. By adopting a high-strength, high-precision shell structure, the connector plug can be more easily automated in electrode production, improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the installation of this utility model.

[0018] In the figure: 1. Outer shell; 101. Bottom of outer shell; 102. Overflow hole; 103. Outer shell constraint feature; 2. Shell cap; 201. Shell cap constraint feature; 202. Barb structure; 203. Chamfer; 3. Sealing film; 4. Connector plug material; 5. Graphite electrode connector; 6. Temperature-sensitive display unit. 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. Example 1

[0020] Please see Figures 1-3 This utility model of a graphite electrode connector includes a shell 1, a cap 2, a sealing film 3, and connector material 4. The shell 1 and cap 2 are made of 0.5mm stainless steel using a stamping process. The shell constraint feature 101 on the shell 1 and the cap constraint feature 201 on the cap 2 form a snap-fit ​​structure, allowing them to be detachably connected to form a closed container. The bottom of the shell 1 has multiple overflow holes 102 with a diameter of 1-2mm along its circumference. A 0.5mm thick PE film is pre-installed on the inner side of the shell bottom as a sealing film 3 to seal the overflow holes 102. The connector material 4 is a mixture of asphalt powder, coke powder, and an expanding agent, with an expansion temperature of 100 degrees Celsius.

[0021] The manufacturing process is as follows: First, place the sealing film 3 at the bottom of the outer shell 1; second, fill the outer shell 1 with the connector bolt material 4; third, fasten the shell cap 2 onto the outer shell 1 with a snap fastener.

[0022] When in use, align the cap 2 of the new connector with the bottom of the hole of the graphite electrode connector 5 and push it to the bottom of the hole. The barb structure 202 on the cap 2 will lock into the inner wall of the plug hole to achieve fixation. When the ambient temperature reaches 100 degrees Celsius, the sealing film 3 melts, the connector material 4 melts and expands, overflowing from the overflow hole 102 and filling the gap between the graphite electrode body and the connector. Example 2

[0023] Please see Figures 1-3 This utility model of a graphite electrode connector includes a shell 1, a cap 2, a sealing film 3, and connector material 4. The shell 1 and cap 2 are made of 0.5mm stainless steel using a stamping process. The shell constraint feature 101 on the shell 1 and the cap constraint feature 201 on the cap 2 are threaded, allowing for detachable connection to form a closed container. The bottom of the shell 1 has multiple evenly arranged overflow holes 102 with a diameter of 4mm. A 0.3mm thick PP film is pre-installed on the inner side of the shell bottom as a sealing film 3 to seal the overflow holes 102. The connector material 4 is a mixture of asphalt powder, coke powder, and an expanding agent, with an expansion temperature below 200 degrees Celsius.

[0024] The manufacturing process is as follows: First, place the sealing film 3 at the bottom of the outer shell 1; second, fill the outer shell 1 with the connector bolt material 4; third, screw the shell cap 2 onto the outer shell 1 through the thread.

[0025] When in use, align the cap 2 of the new type of connector with the bottom of the hole of the graphite electrode connector 5, and push it to the bottom of the hole. The barb structure 202 on the cap 2 will lock into the inner wall of the plug hole to achieve fixation. When the ambient temperature reaches the preset expansion temperature, the sealing film 3 melts, the connector material 4 melts and expands, and overflows from the overflow hole 102 to fill the gap between the graphite electrode body and the connector. Example 3

[0026] Please see Figures 1-3 This utility model of a graphite electrode connector includes a shell 1, a cap 2, a sealing film 3, and connector material 4. The shell 1 and cap 2 are made of PC-type plastic using injection molding. The shell constraint feature 101 on the shell 1 and the cap constraint feature 201 on the cap 2 form a snap-fit ​​structure, allowing them to be detachably connected to form a closed container. The bottom of the shell 1 has multiple evenly arranged overflow holes 102 with a diameter of 4mm. A 0.3mm thick PP film is pre-installed on the inner side of the shell bottom as a sealing film 3 to seal the overflow holes 102. The connector material 4 is a mixture of asphalt powder, coke powder, and an expanding agent, with an expansion temperature below 100 degrees Celsius.

[0027] The manufacturing process is as follows: First, place the sealing film 3 at the bottom of the outer shell 1; second, fill the outer shell 1 with the connector bolt material 4; third, fasten the shell cap 2 onto the outer shell 1 with a snap fastener.

[0028] In use, align the cap 2 of the new connector with the bottom of the hole in the graphite electrode connector 5, and push it to the bottom of the hole. The barb structure 202 on the cap 2 will lock into the inner wall of the connector hole to achieve fixation. When the ambient temperature reaches the preset expansion temperature, the sealing film 3 melts, the connector material 4 melts and expands, overflowing from the overflow hole 102 and filling the gap between the graphite electrode body and the connector. The temperature-sensitive display can change color when the temperature changes to reflect the installation status.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A novel graphite electrode connector plug, characterized in that: It includes an outer shell (1), a cap (2), a sealing film (3), and a connector plug (4); the outer shell (1) and the cap (2) are detachably connected to form a closed container, and the connector plug (4) is filled in the closed container formed by the outer shell (1) and the cap (2). The bottom of the outer shell (1) is provided with multiple overflow holes (102), and the overflow holes (102) are distributed in a ring array along the bottom of the outer shell (1). The sealing film (3) is pre-installed on the inner side of the bottom of the outer shell (1) and is used to block the overflow holes (102). The cap (2) is provided with a barb structure (202) and a chamfer (203).

2. The novel graphite electrode connector plug according to claim 1, characterized in that: The barb structure (202) consists of 3-4 elastic barbs, evenly distributed at 120° / 90°. The angle between the barbs and the axis of the cap (2) is 25°-30°. The anti-detachment force is ≥50N and the installation force is ≤30N.

3. The novel graphite electrode connector plug according to claim 1, characterized in that: The outer shell (1) has an integrally formed outer shell constraint feature (101) on its side wall, and the cap (2) has an integrally formed cap constraint feature (201) that matches the outer shell constraint feature (101) on its side wall. The outer shell (1) and the cap (2) are detachably connected through the constraint feature, which is a snap or a thread.

4. The novel graphite electrode connector plug according to claim 1, characterized in that: The outer shell (1) and the cap (2) are made of plastic or metal; when the material is plastic, they are prepared by injection molding; when the material is metal, they are prepared by stamping.

5. A novel graphite electrode connector plug according to claim 1, characterized in that: The sealing film (3) is a polymer material that remains solid at room temperature and melts on its own when the ambient temperature reaches a preset value; the material of the sealing film (3) is a PE film or a PP film.

6. The novel graphite electrode connector plug according to claim 1, characterized in that: The joint plug material (4) is a mixture of asphalt, coke powder and expansion agent. When the ambient temperature reaches a preset value, the joint plug material (4) melts and expands, and can overflow from the overflow hole (102).

7. A novel graphite electrode connector plug according to claim 3, characterized in that: When the constraint feature is a snap fastener, the outer shell constraint feature (101) is an elastic snap protrusion, and the cap constraint feature (201) is a slot that matches the elastic snap protrusion. The disassembly force after the snap fastener is connected is ≥100N to ensure the sealing of the closed container.

8. A novel graphite electrode connector plug according to claim 4, characterized in that: When the outer shell (1) and the cap (2) are made of stainless steel, their inner walls are coated with a high-temperature resistant and rust-proof coating with a thickness of 5-10μm and a temperature resistance of ≥200℃ to avoid chemical reaction with the connector bolt material (4).

9. A novel graphite electrode connector plug according to claim 1, characterized in that: The end of the cap (2) is fixedly inlaid with a temperature-sensitive display part (6), and the temperature-sensitive display part (6) is disposed through the cap (2).

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