Stainless steel extension tube with double external threads
By setting the outer wire section and movable casing in the double outer wire extension tube of the stainless steel extension tube, combining the sealing gasket and annular support frame, the problems of insolidity and insufficient sealing at the connection are solved, and higher stability is achieved and sealing effect extends service life and improves the reliability of the pipe body.
Patent Information
- Application Number
- CN202421301465.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The connections of stainless steel extension pipes on the market are not firm enough, and the sealing is difficult to ensure. Especially under widespread application and interference from multiple factors, the reliability and sealing of the connections are insufficient.
A stainless steel double outer wire extension tube was designed. The outer wire sections were set at both ends of the double outer wire tube body and a movable sleeve was set, including a hexagonal inner wire sleeve, a welded short outer wire nozzle and a long outer wire tube. The port uses a sealing gasket and annular support frame to ensure the stability and sealing of the connection.
Through the extended design of the outer wire segment and movable sleeve, the stability and sealing effect of the connection are improved, the service life of the sealing gasket and outer wire segment is extended, corrosion and aging are avoided, and the reliability of the pipe body is improved.
Smart Images
Figure CN222351675U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stainless steel pipes, in particular to a stainless steel double outer thread extension pipe. Background Art
[0002] Stainless steel extension pipes are commonly used pipe connectors, involving ventilation, drainage, transportation and other aspects. Stainless steel extension pipes on the market are often connected to the pipeline through short threaded ports at both ends, which are basically bare pipes. When the stainless steel extension pipes are connected, the connection at the threaded port is not strong enough, and the sealing of the connection cannot be guaranteed after long-term use and interference from other factors. With the increasing application of stainless steel extension pipes, the demand for pipelines is also increasing, so there is room for improvement. Utility Model Content
[0003] The utility model aims to provide a stainless steel double-external-thread extension tube, which is used for improving the reliability of the connection position of the stainless steel extension tube.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stainless steel double outer thread extension tube, comprising a double outer thread tube body, outer thread segments are arranged at both ends of the double outer thread tube body, and the outer thread segments are extended along the axial direction of the double outer thread tube body, and movable sleeves are sleeved at both ends of the double outer thread tube body, and the movable sleeves include a hexagonal inner thread sleeve and a short extension tube mouth and a long extension tube mouth respectively welded and fixed at both ends of the hexagonal inner thread sleeve, the hexagonal inner thread sleeve is threadedly connected to the outer thread segment through the inner thread sleeve, the short extension tube mouth and the long extension tube mouth are both sleeved on the outer periphery of the double outer thread tube body, and the short extension tube mouth is located on the outside, and the long extension tube mouth is located on the inside, a sealing gasket is sleeved on the outer thread segment, and the sealing gasket is embedded in the short extension tube mouth.
[0005] Preferably, the sealing gasket comprises a rubber gasket and an annular supporting frame embedded in the rubber gasket.
[0006] Preferably, the movable sleeve can slide axially along the double outer wire tube body between the outer wire segments at both ends of the double outer wire tube body.
[0007] Preferably, the outer wall of the hexagonal inner thread sleeve is a regular hexagon.
[0008] Preferably, the movable sleeve can be sleeved with an outer tube on the periphery of the double outer wire tube body through a long outer tube opening, and the long outer tube opening is inserted into the tube opening of the outer tube.
[0009] The utility model has the following beneficial effects:
[0010] 1. The extended outer thread section makes the product more adaptable. This product is connected to the movable sleeve through the extended outer thread section. The movable sleeve and the double outer thread tube body are connected with the outer thread section at the same position, which reduces the cost of product improvement;
[0011] 2. Through the assembly of the movable sleeve and the sealing gasket, when the double outer thread tube body is connected and installed as an extension tube, the sealing gasket is sandwiched between the connecting tube connected by the outer thread section and the movable sleeve, and the movable sleeve is squeezed on the end of the connecting tube through the sealing gasket to ensure stable connection and good sealing effect;
[0012] 3. The short extension pipe mouth of the movable sleeve protects the sealing gasket, prolongs the service life of the sealing gasket, and prevents it from being exposed to the external environment for a long time and accelerating aging;
[0013] 4. The long extension pipe mouth of the movable sleeve protects the outer thread section to prevent the outer thread from aging and failure after corrosion. The long extension pipe mouth can be used to assemble the outer tube on the double outer thread pipe body, which can increase the protection of the double outer thread pipe body and improve the reliability of the double outer thread pipe body. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a stereoscopic diagram of the assembly of the double outer thread tube body and the movable sleeve of the utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the movable sleeve of the utility model;
[0016] Figure 3 This is a schematic diagram of the sealing gasket structure of the utility model;
[0017] Figure 4 This is a stereoscopic diagram of the assembly of the outer tube and the movable sleeve of the utility model.
[0018] In the figure: 1. double outer thread tube body; 11. outer thread section; 2. movable sleeve; 21. hexagonal inner thread sleeve; 22. short extension tube mouth; 23. long extension tube mouth; 3. sealing gasket; 31. rubber gasket; 32. supporting frame; 4. outer tube. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] like Figure 1-4As shown, the utility model provides a technical solution: a stainless steel double outer wire extension tube, comprising a double outer wire tube body 1, outer wire segments 11 are arranged at both ends of the double outer wire tube body 1, and the outer wire segments 11 are extended along the axial direction of the double outer wire tube body 1, and movable sleeves 2 are sleeved at both ends of the double outer wire tube body 1, and the movable sleeve 2 can slide axially along the double outer wire tube body 1 between the outer wire segments 11 at both ends of the double outer wire tube body 1, and the movable sleeve 2 comprises a hexagonal inner wire sleeve 21 and a short extension pipe opening 22 and a long extension pipe opening 23 respectively welded and fixed to the two ends of the hexagonal inner wire sleeve 21.
[0021] The outer wall of the hexagonal inner thread sleeve 21 is a regular hexagon. The hexagonal inner thread sleeve 21 is threadedly connected to the outer thread segment 11 through the inner thread sleeve. The short extension pipe mouth 22 and the long extension pipe mouth 23 are both sleeved on the outer periphery of the double outer thread tube body 1, and the short extension pipe mouth 22 is located on the outside, and the long extension pipe mouth 23 is located on the inside.
[0022] The sealing gasket 3 is sleeved on the outer wire section 11 and embedded in the short extension pipe mouth 22. The sealing gasket 3 includes a rubber gasket 31 and an annular support frame 32 embedded in the rubber gasket 31. The sealing gasket 3 is supported by the support frame 32 to prevent it from being deformed.
[0023] The movable sleeve 2 can be sleeved with the outer tube 4 on the outer periphery of the double outer wire tube body 1 through the long extension tube mouth 23, and the long extension tube mouth 23 is inserted into the tube mouth of the outer tube 4. The outer tube 4 is restricted and fixed by the movable sleeve 2 locked by thread and the long extension tube mouths 23 at both ends. In different needs, the outer tube 4 can be made of different materials. The outer tube 4 can be an insulation sleeve, a reinforcement sleeve, or a sun-proof, anti-corrosion, and waterproof sleeve to play a protective role, but is not limited to this.
Claims
1. A stainless steel double outer wire extension tube, characterized in that: The invention comprises a double outer thread tube body (1), wherein outer thread segments (11) are arranged at both ends of the double outer thread tube body (1), and the outer thread segments (11) are arranged to extend along the axial direction of the double outer thread tube body (1), and movable sleeves (2) are sleeved at both ends of the double outer thread tube body (1), and the movable sleeves (2) comprise a hexagonal inner thread sleeve (21) and a short extension tube opening (22) and a long extension tube opening (23) respectively welded and fixed to both ends of the hexagonal inner thread sleeve (21). 23), the hexagonal inner thread sleeve (21) is threadedly connected to the outer thread segment (11) through the inner thread sleeve, the short extension pipe mouth (22) and the long extension pipe mouth (23) are both sleeved on the outer periphery of the double outer thread tube body (1), and the short extension pipe mouth (22) is located on the outside, and the long extension pipe mouth (23) is located on the inside, and a sealing gasket (3) is sleeved on the outer thread segment (11), and the sealing gasket (3) is embedded in the short extension pipe mouth (22).
2. A stainless steel double outer wire extension tube according to claim 1, characterized in that: The sealing gasket (3) comprises a rubber gasket (31) and an annular supporting frame (32) embedded in the rubber gasket (31).
3. A stainless steel double outer wire extension tube according to claim 1, characterized in that: The movable sleeve (2) can slide along the axial direction of the double outer thread tube body (1) between the outer thread segments (11) at both ends of the double outer thread tube body (1).
4. A stainless steel double outer wire extension tube according to claim 1, characterized in that: The outer wall of the hexagonal inner thread sleeve (21) is a regular hexagon.
5. A stainless steel double outer wire extension tube according to claim 1, characterized in that: The movable sleeve (2) can be sleeved with an outer tube (4) on the periphery of the double outer wire tube body (1) through a long outer tube opening (23), and the long outer tube opening (23) is inserted into the tube opening of the outer tube (4).