Air pipe sealing joint
By using a combined sealing method of pipe fitting parts, combined sealing gaskets and lock nut parts in the air pipe sealing joint, the problems of easy leakage and poor sealing effect of existing pipe fittings are solved, and stable fixation and efficient sealing are achieved, improving Easy to use and pressure resistance.
Patent Information
- Application Number
- CN202421206547.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-30
AI Technical Summary
Existing pipe joints are prone to leakage during use, and the sealing effect is poor after being extruded and deformed, resulting in the need to cut off the position of the hood and reinstall it during reuse, which increases inconvenience.
Using air pipe sealing joints, including pipe joint components, combined sealing gaskets and lock nut components, the chamfer grooves and lock nut components of lock nut components are used to combine sealing rings, compression gaskets and open squeezing parts of the lock nut components. The close conflict of the chamfers achieves stable fixation and sealing of the air pipe.
It effectively avoids leakage problems, improves the stability and reliability of the sealing effect, reduces operation difficulty, and has good reuse and pressure resistance.
Smart Images
Figure CN222479733U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of pipeline sealing joints, in particular to a gas pipe sealing joint. Background Art
[0002] Hard pipe is an important component widely used in the engineering field, mainly used to transport liquids, gases or solid particles. It is characterized by hard material, stable structure, and ability to withstand high pressure and temperature. Therefore, it plays an indispensable role in various industrial production and civil facilities. Among them, the installation and maintenance of hard pipe is also an important link to ensure its stable performance.
[0003] At present, the design of the pipe joint end adopts more single or double ferrule sealing methods. By rotating the nut, the pipe part inserted into the joint is squeezed and deformed by pressure, and the cutting edge of the ferrule is firmly stuck on the outer wall of the pipe, thereby fixing the pipes at both ends by increasing friction. However, this sealing method also requires high skills of the operator, and improper installation can easily lead to leakage problems. In addition, once the pipe is squeezed and deformed, its sealing effect will be greatly reduced if it is used again. Sometimes, in order to restore the sealing performance, it is even necessary to cut off the ferrule position and reinstall the ferrule, which undoubtedly increases the inconvenience during use. Utility Model Content
[0004] In order to solve the problem that the existing pipe joints in the prior art are prone to leakage if improperly installed, and that once the pipes are squeezed and deformed, their sealing effect is poor if used again, the present application provides a trachea sealing joint to solve the above problems.
[0005] In order to achieve the above purpose, the technical solution adopted in this application is:
[0006] A trachea sealing joint, comprising a trachea and a sealing joint device, wherein the trachea is inserted into the sealing joint device, and the sealing joint device comprises a pipe joint component, a combined sealing pad and a locking nut component which are sequentially sleeved on the trachea tube body;
[0007] The combined sealing gasket is provided with a sealing gasket chamfer at the end facing the locking nut component, and a chamfer groove is provided in the inner cavity of the locking nut component corresponding to the sealing gasket chamfer. The locking nut component is detachably connected to the outside of the pipe body of the pipe joint component, and the pipe joint component is in contact with the locking nut component, wherein the sealing gasket chamfer conflicts with the chamfer groove.
[0008] As a further improvement of the present invention, the pipe joint component includes a joint shell, the joint shell tube body is provided with an external thread, the locking nut component includes a nut shell, the nut shell is provided with an internal thread, and the joint shell is threadedly fixed to the internal thread inside the nut shell through the external thread.
[0009] As a further improvement of the present invention, the inner cavity of the pipe joint component includes a first cavity, a second cavity and a third cavity with successively increasing diameters, a first step is formed between the first cavity and the second cavity, the trachea port abuts against the end surface of the first step, a second step is formed between the second cavity and the third cavity, and the combined sealing gasket abuts against the end surface of the second step.
[0010] As a further improvement of the present invention, the inner cavity of the locking nut component includes a first nut inner cavity and a second nut inner cavity, the internal thread is arranged inside the first nut inner cavity, and the chamfered groove is opened at the junction of the first nut inner cavity and the second nut inner cavity.
[0011] As a further improvement of the present invention, the combined sealing gasket comprises a sealing ring, a compression washer and an open ferrule component arranged in sequence, the inner diameters of the sealing ring, the compression washer and the open ferrule component are all the same as the outer diameter of the trachea, the sealing ring abuts against the end face of the second step, and the open ferrule component abuts against the inner cavity of the first nut.
[0012] As a further improvement of the utility model, the open ferrule component includes a ferrule shell, the sealing gasket chamfer is opened on the end face of the ferrule shell facing the inner cavity of the first nut, the sealing gasket chamfer is a ferrule chamfer, and the bevel angle of the ferrule chamfer and the chamfer groove are horizontal.
[0013] Compared with the prior art, the technical solution provided by the utility model has the following advantages and effects:
[0014] 1. In the present application, the trachea passes through the locking nut component, the open ferrule, the gasket pressure ring and the sealing ring in sequence, and finally stops at the inner cavity end face of the pipe joint component. Subsequently, by rotating the locking nut component, the chamfered groove provided in the inner cavity and the ferrule chamfer on the ferrule shell in the open ferrule form a tight conflict, thereby causing the open ferrule to squeeze the outer wall of the trachea inward, ensuring that the trachea is stable and does not fall off. In this process, the open ferrule simultaneously applies downward pressure to the gasket and the sealing ring, so that the sealing ring fits tightly between the outer wall of the trachea and the end face of the pipe joint component, thereby achieving an effective sealing effect. After this sealing structure is formed, the working stability and safety of the entire system are significantly improved. Due to the close fit between the locking nut component and the open ferrule, and the effective sealing of the gasket pressure ring and the sealing ring, the trachea is not easy to loosen or leak during operation, ensuring the continuity and stability of gas transmission.
[0015] 2. In the present application, a combined sealing method of a pipe joint component, a combined sealing gasket and a locking nut component is adopted, which is scientifically designed and easy to operate. During the working process, the operator only needs to fasten the locking nut component to the outside of the pipe body of the pipe joint component, and ensure that the chamfer of the sealing gasket on the combined sealing gasket fits with the chamfer groove in the locking nut component to achieve effective sealing, and the entire sealing process will not cause damage to the outer wall of the pipeline, and has good reusability. This sealing method not only improves work efficiency, but also ensures the stability and reliability of the sealing effect. In addition, the combined sealing method also has excellent pressure resistance and can adapt to the use requirements under different working pressures. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.
[0017] Figure 1 It is an axonometric drawing of the utility model.
[0018] Figure 2 It is the front view of the utility model.
[0019] Figure 3 It is a left view of the utility model.
[0020] Figure 4 yes Figure 3 Section view along the cutting symbol AA.
[0021] Figure 5 It is an axonometric drawing of the utility model without installing the trachea.
[0022] Figure 6 It is a front view of the utility model without installing the trachea.
[0023] Figure 7 It is a left side view of the utility model without installing the trachea.
[0024] Figure 8 yes Figure 7 Section view along the cutting symbol BB.
[0025] In the figure:
[0026] 10. Trachea; 20. Pipe joint component; 201. Joint housing; 202. External thread; 203. First tube cavity; 204. Second tube cavity; 205. Third tube cavity; 206. First step; 207. Second step; 30. Sealing ring; 40. Compression washer; 50. Open ferrule component; 501. Ferrule housing; 502. Ferrule chamfer; 60. Locking nut component; 601. Nut housing; 602. Internal thread; 603. First nut inner cavity; 604. Second nut inner cavity. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0028] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0030] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0031] In addition, if the terms "horizontal" or "vertical" appear in the description of this application, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0032] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0033] Example:
[0034] A trachea 10 sealing joint, comprising a trachea 10 and a sealing joint device, wherein the trachea 10 is inserted into the sealing joint device, and the sealing joint device comprises a pipe joint component 20, a combined sealing gasket and a locking nut component 60 which are sequentially sleeved on the trachea 10 body;
[0035] The combined sealing gasket is provided with a sealing gasket chamfer at the end facing the locking nut component 60, and a chamfer groove is provided in the inner cavity of the locking nut component 60 corresponding to the sealing gasket chamfer. The locking nut component 60 is detachably connected to the outside of the pipe body of the pipe joint component 20, and the pipe joint component 20 is in contact with the locking nut component 60, wherein the sealing gasket chamfer conflicts with the chamfer groove.
[0036] It is explained that a combined sealing method of the pipe joint component 20, the combined sealing gasket and the locking nut component 60 is adopted, which is scientifically designed and easy to operate. During the working process, the operator only needs to fasten the locking nut component 60 to the outside of the pipe body of the pipe joint component 20, and ensure that the chamfer of the sealing gasket on the combined sealing gasket fits with the chamfer groove in the locking nut component 60 to achieve effective sealing, and the entire sealing process will not cause damage to the outer wall of the pipeline, and has good reusability. This sealing method not only improves work efficiency, but also ensures the stability and reliability of the sealing effect. In addition, the combined sealing method also has excellent pressure resistance and can adapt to the use requirements under different working pressures.
[0037] Combined with the accompanying drawings Figure 4 and Figure 8 The pipe joint component 20 includes a joint shell 201, and an external thread 202 is provided on the pipe body of the joint shell 201. The locking nut component 60 includes a nut shell 601, and an internal thread 602 is provided inside the nut shell 601. The joint shell 201 is screwed and fixed to the internal thread 602 inside the nut shell 601 through the external thread 202.
[0038] It is explained that the design of the external thread 202 on the joint housing 201 enables the component to be tightly screwed with the internal thread 602 in the nut housing 601. This design method is simple and effective, and can achieve a stable connection between the components, avoiding loosening or falling off during use. In addition, this screw-on fixing method also facilitates the user's installation and disassembly operations. During installation, the user only needs to align the external thread 202 of the joint housing 201 with the internal thread 602 of the nut housing 601, and then rotate the nut housing 601 to achieve a tight connection between the two. When disassembly is required, it is only necessary to rotate the nut housing 601 in the opposite direction to easily separate the pipe joint component 20 and the locking nut component 60, which is convenient and practical.
[0039] It is worth noting that this threaded fixing method also has good versatility. Since the design of the external thread 202 and the internal thread 602 conforms to the standard thread specifications, the pipe joint component 20 and the locking nut component 60 can be used interchangeably with most components of the same specifications on the market, greatly improving its scope of application and flexibility of use.
[0040] Combined with the accompanying drawings Figure 4 and Figure 8The inner cavity of the pipe joint component 20 includes a first tube cavity 203, a second tube cavity 204 and a third tube cavity 205 with increasing tube diameters in sequence, a first step 206 is formed between the first tube cavity 203 and the second tube cavity 204, the port of the trachea 10 abuts against the end surface of the first step 206, a second step 207 is formed between the second tube cavity 204 and the third tube cavity 205, and the combined sealing gasket abuts against the end surface of the second step 207.
[0041] It is explained that the first step 206 formed between the first tube cavity 203 and the second tube cavity 204 provides a stable support surface for the port of the trachea 10, so that the port of the trachea 10 can be tightly against the end surface of the first step 206, effectively preventing gas leakage at the connection. At the same time, the second step 207 formed between the second tube cavity 204 and the third tube cavity 205 provides a reliable installation position for the combined sealing gasket, ensuring that the sealing gasket can be accurately and firmly installed on the pipe joint component 20, thereby further improving the sealing effect. In addition, the design of this pipe joint component 20 also fully considers the convenience of use. By adopting a design in which the pipe diameter increases successively, the pipe joint component 20 can gradually guide the trachea 10 and the sealing gasket into the correct position during the connection process, greatly reducing the difficulty of installation. At the same time, the convenience of use is also taken into consideration, and it is an efficient and reliable pipeline connection component.
[0042] It is further worth noting that the inner cavity of the locking nut component 60 includes a first nut inner cavity 603 and a second nut inner cavity 604, the internal thread 602 is arranged inside the first nut inner cavity 603, and the chamfered groove is opened at the junction of the first nut inner cavity 603 and the second nut inner cavity 604.
[0043] Combined with the accompanying drawings Figure 4 and Figure 8 The combined sealing gasket includes a sealing ring 30, a clamping washer 40 and an open ferrule component 50 arranged in sequence, the inner diameters of the sealing ring 30, the clamping washer 40 and the open ferrule component 50 are all the same as the outer diameter of the trachea 10, the sealing ring 30 abuts against the end face of the second step 207, the open ferrule component 50 abuts against the inside of the first nut inner cavity 603, the sealing gasket chamfer is provided on the end face of the ferrule housing 501 facing the first nut inner cavity 603, the sealing gasket chamfer is a ferrule chamfer 502, and the ferrule chamfer 502 is horizontal with the bevel angle of the chamfer groove.
[0044] It is explained that the combined sealing gasket optimizes and improves the sealing performance of the pipeline connection. Among them, the combination of the sealing ring 30, the clamping gasket 40 and the open ferrule component 50 can effectively solve the leakage problem during the connection process of the trachea 10 and improve the overall sealing effect. Structurally, the sealing ring 30 is the core component of the sealing gasket, and its material is selected from highly elastic and wear-resistant materials to ensure that it can maintain excellent sealing performance during long-term use. The sealing ring 30 contacts the end face of the second step 207 to form a tight sealing barrier, which effectively prevents gas from leaking there. The clamping gasket 40 is located behind the sealing ring 30, and its function is to provide sufficient clamping force to ensure a close fit between the sealing ring 30 and the end face of the trachea 10. The clamping gasket 40 is made of a material with a certain elasticity, which can provide sufficient clamping force without causing excessive pressure on the trachea 10.
[0045] Specifically, the open ferrule component 50 is a fixed component of the combined sealing gasket, which contacts the interior of the first nut inner cavity 603, and the sealing gasket is stably installed by the horizontal cooperation of the ferrule chamfer 502 and the bevel angle of the chamfer groove. The design of the open ferrule component 50 makes the installation and removal of the sealing gasket convenient and quick, and also ensures the stability of the sealing gasket during use. In addition, the opening of the sealing gasket chamfer not only enhances the fit between the sealing gasket and the first nut inner cavity 603, but also plays a guiding role during the installation process, so that the sealing gasket can smoothly enter the installation position.
[0046] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A trachea sealing joint, comprising a trachea (10) and a sealing joint device, wherein the trachea (10) is inserted into the sealing joint device, and is characterized in that: The sealing joint device comprises a pipe joint component (20), a combined sealing gasket and a locking nut component (60) which are sequentially sleeved on the pipe body of the air pipe (10); The combined sealing gasket is provided with a sealing gasket chamfer at the end facing the locking nut component (60), and a chamfer groove is provided in the inner cavity of the locking nut component (60) corresponding to the sealing gasket chamfer. The locking nut component (60) is detachably connected to the outside of the pipe body of the pipe joint component (20), and the pipe joint component (20) is in contact with the locking nut component (60), wherein the sealing gasket chamfer abuts against the chamfer groove.
2. The air pipe sealing joint according to claim 1, characterized in that: The pipe joint component (20) comprises a joint shell (201), the pipe body of the joint shell (201) is provided with an external thread (202), the locking nut component (60) comprises a nut shell (601), the interior of the nut shell (601) is provided with an internal thread (602), and the joint shell (201) is screwed and fixed to the internal thread (602) inside the nut shell (601) via the external thread (202).
3. The air pipe sealing joint according to claim 2, characterized in that: The inner cavity of the pipe joint component (20) includes a first tube cavity (203), a second tube cavity (204) and a third tube cavity (205) with tube diameters increasing successively; a first step (206) is formed between the first tube cavity (203) and the second tube cavity (204); the port of the trachea (10) abuts against the end surface of the first step (206); a second step (207) is formed between the second tube cavity (204) and the third tube cavity (205); and the combined sealing gasket abuts against the end surface of the second step (207).
4. The air pipe sealing joint according to claim 3, characterized in that: The inner cavity of the locking nut component (60) includes a first nut inner cavity (603) and a second nut inner cavity (604), the internal thread (602) is arranged inside the first nut inner cavity (603), and the chamfered groove is opened at the junction of the first nut inner cavity (603) and the second nut inner cavity (604).
5. The air pipe sealing joint according to claim 4, characterized in that: The combined sealing gasket comprises a sealing ring (30), a compression washer (40) and an open sleeve component (50) arranged in sequence, wherein the inner diameters of the sealing ring (30), the compression washer (40) and the open sleeve component (50) are all the same as the outer diameter of the air pipe (10), the sealing ring (30) abuts against the end face of the second step (207), and the open sleeve component (50) abuts against the inside of the first nut inner cavity (603).
6. The air pipe sealing joint according to claim 5, characterized in that: The open ferrule component (50) includes a ferrule shell (501), the sealing gasket chamfer is provided on the end face of the ferrule shell (501) facing the first nut inner cavity (603), the sealing gasket chamfer is a ferrule chamfer (502), and the ferrule chamfer (502) is parallel to the bevel angle of the chamfer groove.