Leak-proof adhesive structure for electric heating tube processing
By designing a leak-proof adhesive structure and utilizing a combination of inner and outer sleeves and compression springs, reliable sealing of silicone during the processing of electric heating tubes was achieved, solving the problem of silicone leakage, improving product appearance quality, and saving labor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI TAIBOS ELECTRICAL EQUIP CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-26
AI Technical Summary
During the processing of electric heating tubes, silicone can easily leak out from the gap between the sleeve and the base plate. Existing sealing methods, such as using O-ring rubber gaskets, are prone to deformation, resulting in the gap not being completely sealed.
An anti-leakage adhesive structure was designed, including components such as an L-shaped base, bracket, guide rod, connecting plate, inner and outer sleeves, and compression spring. An O-ring flat washer is slidably fitted onto the inner sleeve, and the elastic force of the compression spring ensures that the washer is reliably fitted between the inner and outer sleeves, ensuring that the gap is completely sealed.
It effectively prevents silicone leakage, saves labor, and improves the appearance quality of products processed with electric heating tubes.
Smart Images
Figure CN224418962U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric heating tube technology, specifically to a leak-proof adhesive structure for processing electric heating tubes. Background Technology
[0002] An electric heating element is a tubular electric heating element. During the processing of an electric heating element, the heating element sleeve needs to be passed through the base plate. However, due to the deviation of the outer diameter of the sleeve and the processing error of the opening of the base plate, there will be a large fit error between the two. When silicone is poured into this area later, the silicone will leak out from the gap, which will seriously affect the appearance of the product.
[0003] Existing methods for sealing gaps generally involve using O-ring rubber gaskets. Manually installing O-ring rubber gaskets is easier than expanding the tube or applying putty. However, when pressing down to install the gasket, it can be squeezed and deformed, resulting in the gap not being completely sealed and leakage during glue application.
[0004] Therefore, there is an urgent need for a structure that can prevent glue leakage during the glue-filling process of electric heating tubes. Utility Model Content
[0005] To address the aforementioned problems, this utility model provides the following technical solution: a leak-proof adhesive structure for processing electric heating tubes, comprising a base and an electric heating tube. The base is L-shaped, with a support plate fixedly installed on one side of the top front of the base. A bracket is fixedly installed at the end of the support plate. The bracket consists of two guide rods and a fixing plate fixedly installed on the top of the guide rods. A connecting plate is fixedly installed in the middle of the guide rods. The connecting plate has a through hole in the middle, and the electric heating tube is movably inserted into the through hole in the middle of the connecting plate. An O-ring flat gasket is placed in the through hole of the connecting plate. A gasket fitting assembly is provided on the top of the bracket to assist in fitting the gasket. The electric heating tube is located directly below the center of the bottom of the gasket fitting assembly.
[0006] As an optimization, the sleeve washer assembly includes an outer sleeve fixedly installed in the middle of the bracket, a top plate fixedly installed on the top of the outer sleeve, an inner sleeve slidably inserted into the inner sleeve, a push-pull rod fixedly installed on the top of the inner sleeve, a pressure plate fixedly installed at one end of the push-pull rod that passes through the middle of the top plate, a limit cylinder fixedly installed at both ends of the top plate, a limit rod fixedly installed on the bottom side of both ends of the pressure plate, and the limit rod is inserted into the limit cylinder. A compression spring is provided between the two ends of the top plate and the pressure plate, and the spring force of the compression spring is greater than the contact friction between the O-ring flat washer and the inner sleeve, which is sufficient to make the O-ring flat washer detach from the inner sleeve.
[0007] As an optimization, the outer diameter of the inner sleeve is smaller than the inner diameter of the outer sleeve, and the difference between the outer diameter of the inner sleeve and the inner diameter of the outer sleeve is no more than 1 mm.
[0008] As an optimization, the inner sleeve is located directly above the heating element and the O-ring flat pad, and the inner diameter of the inner sleeve is larger than the outer diameter of the heating element. By pressing down on the pressure plate, the inner sleeve will slide vertically downward along the inner wall of the outer sleeve, and then pass through the O-ring flat pad so that it fits on the outside of the inner sleeve. As the inner sleeve continues to move downward, it will also fit on the outside of the heating element.
[0009] As an optimization, the compression spring is sleeved on the outside of the limiting rod, and the limiting rods on both sides are correspondingly slidably inserted into the limiting cylinders on both sides. The sliding of the limiting rods on both sides inside the limiting cylinders will play a limiting and guiding role on the push-pull rod, so that it can maintain the vertical direction and drive the inner sleeve to move. At the same time, the compression spring can assist the inner sleeve to return to its original position after it moves down, thereby improving efficiency.
[0010] As an optimization, a limiting hole is provided in the middle of the top plate, and the push-pull rod is slidably inserted into the limiting hole.
[0011] As an optimization, both ends of the top plate are provided with internal threads, and the outer side of the middle part of the limiting cylinder is provided with an external thread corresponding to the internal thread. By placing the limiting cylinder into the internal thread and turning it, the limiting cylinder will be fixed by the cooperation of the external thread and the internal thread, thus facilitating its installation and disassembly.
[0012] The beneficial effects of this utility model are:
[0013] The anti-leakage adhesive structure used in the processing of this electric heating element works by pressing down on the pressure plate, which causes the inner sleeve to pass downward through the O-ring gasket. This allows the O-ring gasket to be fitted onto the outside of the inner sleeve and the outside of the heating element. As the compression spring is compressed, when the pressure plate is released, the inner sleeve is pushed back upward by the compression spring, causing the O-ring gasket to contact the outer sleeve. The outer sleeve then presses down on the inner sleeve, causing the O-ring gasket to detach from the inner sleeve and fit completely onto the outside of the heating element located inside the inner sleeve. This allows for complete gasket fitting, effectively sealing gaps and greatly saving labor. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the washer structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the outer sleeve structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the inner sleeve limiting structure of this utility model.
[0018] In the diagram: 1. Base; 2. Heating element; 3. Support plate; 4. Bracket; 5. Connecting plate; 6. O-ring flat washer; 7. Sleeve washer assembly; 8. Outer sleeve; 9. Top plate; 10. Inner sleeve; 11. Push-pull rod; 12. Pressure plate; 13. Limiting cylinder; 14. Limiting rod; 15. Compression spring; 16. Limiting hole; 17. Internal thread; 18. External thread. 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] Please see Figure 1 A leak-proof adhesive structure for processing electric heating tubes includes a base 1 and an electric heating tube 2. The base 1 is L-shaped. A support plate 3 is fixedly installed on one side of the top front of the base 1. A bracket 4 is fixedly installed at the end of the support plate 3. The bracket 4 consists of two guide rods and a fixing plate fixedly installed on the top of the guide rods. A connecting plate 5 is fixedly installed in the middle of the guide rods. The connecting plate 5 has a through hole in the middle, and the electric heating tube 2 is movably inserted into the through hole in the middle of the connecting plate 5. An O-ring flat gasket 6 is placed in the through hole of the connecting plate 5. A gasket fitting assembly 7 is provided on the top of the bracket 4 to assist in fitting the gasket. The electric heating tube 2 is located directly below the bottom center of the gasket fitting assembly 7.
[0021] Please see Figure 2 The washer assembly 7 includes an outer sleeve 8 fixedly installed in the middle of the bracket 4, a top plate 9 fixedly installed on the top of the outer sleeve 8, and an inner sleeve 10 slidably inserted into the inner sleeve 8. The outer diameter of the inner sleeve 10 is smaller than the inner diameter of the outer sleeve 8, and the difference between the outer diameter of the inner sleeve 10 and the inner diameter of the outer sleeve 8 is no more than 1 mm. The inner sleeve 10 is located directly above the heating element 2 and the O-ring flat gasket 6, and the inner diameter of the inner sleeve 10 is larger than the outer diameter of the heating element 2. A push-pull rod 11 is fixedly installed on the top of the inner sleeve 10, and the push-pull rod 11 passes through the top plate 9. A pressure plate 12 is fixedly installed at one end of the middle section. Pressing the pressure plate 12 downward will cause the inner sleeve 10 to slide vertically downward along the inner wall of the outer sleeve 8, and then pass through the O-ring flat gasket 6 so that it is fitted on the outside of the inner sleeve 10. As the inner sleeve 10 continues to move downward, it will also be fitted on the outside of the heating element 2. When the pressure plate 12 is pulled to move the inner sleeve 10 upward, the O-ring flat gasket 6 will be pressed down by the outer sleeve 8 relative to the inner sleeve 10, thereby detaching from the inner sleeve 10 and fitting on the outside of the heating element 2, which is convenient and quick.
[0022] Please see Figure 2Limiting cylinders 13 are fixedly installed inside both ends of the top plate 9, and limiting rods 14 are fixedly installed on the bottom sides of both ends of the pressure plate 12. The limiting rods 14 are inserted into the limiting cylinders 13. A compression spring 15 is provided between the two ends of the top plate 9 and the pressure plate 12. The elastic force of the compression spring 15 is greater than the contact friction between the O-ring flat gasket 6 and the inner sleeve 10, which is sufficient to make the O-ring flat gasket 6 disengage from the inner sleeve 10. The compression spring 15 is sleeved on the outside of the limiting rod 14. The two limiting rods 14 are correspondingly slidably inserted into the two limiting cylinders 13. By sliding the two limiting rods 14 inside the limiting cylinder 13, the push-pull rod 11 will play a limiting and guiding role, so that it can maintain the vertical direction to drive the inner sleeve 10 to move. At the same time, the compression spring 15 can assist the inner sleeve 10 to return to its original position after it moves down, thus improving efficiency.
[0023] Please see Figure 3-4 Both ends of the top plate 9 are provided with internal threads 17, and the outer side of the middle part of the limiting cylinder 13 is provided with external threads 18 corresponding to the internal threads 17. By placing the limiting cylinder 13 into the internal threads 17 and turning it, the limiting cylinder 13 will be fixed by the cooperation of the external threads 18 and the internal threads 17, thus facilitating its installation and disassembly.
[0024] When in use, first place the O-ring flat pad 6 in the middle of the connecting plate 5, place the heating tube 2 directly below the inner sleeve 10, and then press down the pressure plate 12 so that the push-pull rod 11 drives the inner sleeve 10 to slide down along the inner wall of the outer sleeve 8, and then it will pass through the O-ring flat pad 6, so that the O-ring flat pad 6 is fitted on the outside of the inner sleeve 10, and the inner sleeve 10 will be fitted on the top outside of the heating tube 2.
[0025] Then, release the pressure plate 12, and the inner sleeve 10 will be driven to return to its original position under the action of the compression spring 15. This will cause the O-ring flat gasket 6 on the outside of the inner sleeve 10 to contact the bottom side of the outer sleeve 8. As the inner sleeve 10 continues to rise, the O-ring flat gasket 6 will be pressed down by the outer sleeve 8 relative to the inner sleeve 10 and placed on the outside of the heating element 2, thus completing the gasket placement operation on the heating element.
[0026] In summary, the leak-proof adhesive structure for processing the electric heating tube works by pressing down the pressure plate 12, which causes the inner sleeve 10 to pass downward through the O-ring flat gasket 6. This allows the O-ring flat gasket 6 to be fitted onto the outside of the inner sleeve 10 and the outside of the electric heating tube 2. As the compression spring 15 is compressed, when the pressure plate 12 is released, the inner sleeve 10 is pushed back upward under the action of the compression spring 15. This causes the O-ring flat gasket 6 to contact the outer sleeve 8 and be pressed down relative to the inner sleeve 10 by the outer sleeve 8. As a result, the O-ring flat gasket 6 is completely fitted onto the outside of the electric heating tube 2 located inside the inner sleeve 10, thus ensuring complete gasket fitting and effectively sealing gaps, greatly saving labor.
[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "join," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings.
[0029] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. An electric heating tube processing leak-proof adhesive structure, comprising a base (1) and an electric heating tube (2), characterized in that: The base (1) is L-shaped. A support plate (3) is fixedly installed on one side of the top front of the base (1). A bracket (4) is fixedly installed at the end of the support plate (3). The bracket (4) consists of two guide rods and a fixed plate fixedly installed on the top of the guide rods. A connecting plate (5) is fixedly installed in the middle of the guide rods. The connecting plate (5) has a through hole in the middle, and the heating element (2) is movably inserted into the through hole in the middle of the connecting plate (5). An O-ring flat washer (6) is placed in the through hole of the connecting plate (5). A sleeve washer assembly (7) for assisting in the sleeve installation of the washer is provided on the top of the bracket (4). The heating element (2) is located directly below the bottom center of the sleeve washer assembly (7).
2. The anti-leakage adhesive structure for processing electric heating tubes according to claim 1, characterized in that: The sleeve washer assembly (7) includes an outer sleeve (8) fixedly installed in the middle of the bracket (4), a top plate (9) fixedly installed on the top of the outer sleeve (8), an inner sleeve (10) slidably inserted into the inner sleeve (8), a push-pull rod (11) fixedly installed on the top of the inner sleeve (10), a pressure plate (12) fixedly installed at one end of the push-pull rod (11) that passes through the middle of the top plate (9), a limit cylinder (13) fixedly installed in both ends of the top plate (9), a limit rod (14) fixedly installed on the bottom side of both ends of the pressure plate (12), and the limit rod (14) is inserted into the limit cylinder (13). A compression spring (15) is provided between the two ends of the top plate (9) and the pressure plate (12), and the elastic force of the compression spring (15) is greater than the contact friction force between the O-ring flat washer (6) and the inner sleeve (10).
3. The anti-leakage adhesive structure for processing electric heating tubes according to claim 2, characterized in that: The outer diameter of the inner sleeve (10) is smaller than the inner diameter of the outer sleeve (8), and the difference between the outer diameter of the inner sleeve (10) and the inner diameter of the outer sleeve (8) is no more than 1 mm.
4. The anti-leakage adhesive structure for processing electric heating tubes according to claim 2, characterized in that: The inner sleeve (10) is located directly above the heating element (2) and the O-ring flat pad (6), and the inner diameter of the inner sleeve (10) is larger than the outer diameter of the heating element (2).
5. The anti-leakage adhesive structure for processing electric heating tubes according to claim 4, characterized in that: The compression spring (15) is sleeved on the outside of the limiting rod (14), and the limiting rods (14) on both sides are slidably inserted into the limiting cylinders (13) on both sides.
6. The anti-leakage adhesive structure for processing electric heating tubes according to claim 2, characterized in that: A limiting hole (16) is provided in the middle of the top plate (9), and the push-pull rod (11) is slidably inserted into the limiting hole (16).
7. The anti-leakage adhesive structure for processing electric heating tubes according to claim 2, characterized in that: Both ends of the top plate (9) are provided with internal threads (17), and the outer side of the middle part of the limiting cylinder (13) is provided with external threads (18) corresponding to the internal threads (17).