Pipe joint and pipe fitting
By introducing a slider and elastic element into the pipe joint, the slider automatically seals when the pipe joint is separated, solving the leakage problem when the pipe joint is separated, achieving instant sealing, and improving safety and convenience.
Patent Information
- Application Number
- CN202423309095.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing pipe fittings lack an immediate sealing mechanism when disconnected, which makes it easy for gas and liquid to leak from the pipeline, resulting in resource waste and safety hazards.
Design a pipe fitting comprising a cylinder, a sealing ring, a slider, and an elastic element. The slider automatically moves to the sealing position under the action of the elastic element to prevent leakage; during connection, the sliders squeeze each other to form a gap to achieve connection.
The system automatically seals after the pipe joint is separated, preventing gas and liquid leakage, improving system safety and reliability, simplifying operation procedures, and enhancing ease of use and structural stability.
Smart Images
Figure CN223579253U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of pipe connection, in particular to a pipe joint and pipe fitting. BACKGROUND
[0002] Pipe connection is a common link in industrial production, widely used in chemical industry, petroleum, medical treatment and other fields. In these applications, reliable pipe connection is crucial to ensure the normal operation of the system. Traditional pipe joint design usually realizes reliable connection between pipes through threaded connection or other mechanical means, so as to ensure the safety and stability of fluid transmission. However, in actual operation, especially in occasions requiring frequent disassembly, how to effectively prevent the leakage of internal medium (such as gas or liquid) of pipe into the environment becomes a problem to be solved.
[0003] In order to solve the above problems, the industry generally adopts various measures to reduce or even avoid the leakage phenomenon at the pipe connection. For example, a common method is to add a sealing ring outside the pipe joint, which uses the elastic deformation of the sealing ring to compensate for the small gap between the interfaces; another method is to set a check valve device inside the pipe joint, which can quickly close when the pipe joint is disconnected, preventing the medium from flowing out. In addition, there are some design schemes that improve the structure and shape of the pipe joint to enhance its sealing performance, such as using a tapered sealing surface or a multi-stage sealing structure to improve the sealing reliability.
[0004] Although the existing various anti-leakage measures have improved the sealing performance of the pipe connection to some extent, there are still some deficiencies in actual use. Especially when the pipe joint is in a separated state, due to the lack of effective immediate sealing mechanism, the gas and liquid in the pipe are easy to overflow from the opened interface in large quantities, not only wasting resources but also possibly causing safety hazards. Therefore, it is particularly important to develop a technology that can realize immediate sealing after the pipe joint is disconnected. CONTENT OF THE INVENTION
[0005] In order to realize immediate sealing in the case of pipe joint separation, the present application provides a pipe joint and pipe fitting.
[0006] In the first aspect, the present application provides a pipe joint, which adopts the following technical scheme:
[0007] A pipe joint, comprising a cylinder, a sealing ring, a sliding block and an elastic member,
[0008] The sealing ring is connected to the inner circumferential surface of the cylinder,
[0009] The sliding block is slidingly embedded in the cylinder,
[0010] The elastic member is connected between the cylinder and the sliding block, and the elastic member makes the sliding block have a tendency to abut against the sealing ring,
[0011] The sliding block abuts against the sealing ring, and the sliding block blocks the cylinder.
[0012] By adopting the above technical scheme, when the two pipe joints are in a separated state, the sliding block is automatically moved to the sealing position under the action of the elastic member, effectively preventing the leakage of gas or liquid inside the pipeline. When the two pipe joints are connected together, the sliding blocks of the two pipe joints are pressed against each other to release the seal, realizing the connection of the pipeline.
[0013] Preferably, the sliding block comprises a sealing plate, a connecting rod and an abutting ring,
[0014] The sealing plate is used to form a seal with the sealing ring,
[0015] The connecting rod is connected to the sealing plate,
[0016] The abutting ring is connected to the connecting rod, and the abutting ring is used for the elastic member to abut against.
[0017] By adopting the above technical scheme, when the two pipe joints are in a separated state, the sliding block is automatically moved to the sealing position under the action of the elastic member, effectively preventing the leakage of gas or liquid inside the pipeline.
[0018] Preferably, the sealing plate and the abutting ring are located on both sides of the sealing ring,
[0019] The elastic member is located between the sealing ring and the abutting ring.
[0020] By adopting the above technical scheme, the sealing plate and the abutting ring are respectively located on both sides of the sealing ring, and the elastic member is located between the sealing ring and the abutting ring, so that the sliding block can be tightly attached to the sealing ring without external pressure, thereby realizing reliable self-closing function.
[0021] Preferably, a plurality of connecting rods are provided, and all the connecting rods are circumferentially spaced apart along the sealing plate, and the connecting rods are used to slide and fit the inner periphery of the sealing ring.
[0022] By adopting the above technical scheme, the connecting rod is provided in multiple and slides and fits the inner periphery of the sealing ring, which can effectively ensure the stability and guidance of the sliding block in the cylinder, prevent the problem of poor sealing caused by the deviation of the sliding block. At the same time, the design of multiple connecting rods can disperse stress, improve the overall strength and service life of the structure.
[0023] Preferably, the elastic member is sleeved outside the connecting rod.
[0024] By adopting the above technical scheme, the elastic member is sleeved outside the connecting rod, which can more evenly apply elastic force, ensure that the sliding block is balanced in force, and thereby improve the sealing performance.
[0025] Preferably, the abutting ring is flush with the end surface of the connecting rod away from the end surface of the sealing plate.
[0026] By adopting the above technical scheme, the abutting ring is flush with the end surface of the connecting rod, and when the two pipe fittings are in the connected state, the two pipe fittings have a larger contact area between the sliders, thereby reducing stress.
[0027] Preferably, the slider further comprises a sealing ring,
[0028] The outer periphery of the sealing plate is provided with an embedding groove, and the sealing ring is embedded in the embedding groove.
[0029] By adopting the above technical scheme, the sealing ring enhances the sealing performance between the slider and the sealing ring, effectively preventing the pipe fitting from leaking during use.
[0030] Preferably, the outer diameter of the sealing plate is equal to the inner diameter of the sealing ring.
[0031] By adopting the above technical scheme, the cooperation between the sealing plate and the sealing ring can be ensured to be more closely, effectively preventing gas or liquid from leaking. At the same time, this design can also improve the stability and reliability of the slider in the barrel.
[0032] In a second aspect, the application provides a pipe fitting, which adopts the following technical scheme:
[0033] A pipe fitting, comprising a fixed barrel one, a fixed barrel two, a connecting barrel and two pipe fittings as described above,
[0034] The fixed barrel one is coaxially connected to the barrel of one pipe fitting,
[0035] The fixed barrel two is coaxially connected to the barrel of the other pipe fitting,
[0036] The connecting barrel is connected to the fixed barrel two, and the connecting barrel is used for detachably connecting to the fixed barrel one,
[0037] When the connecting barrel is connected to the fixed barrel one, the slider of any pipe fitting pushes the slider of the other pipe fitting to move to form a gap between the slider and the sealing ring.
[0038] By adopting the above technical scheme, when the connecting barrel is connected to the fixed barrel one, the slider of one pipe fitting can push the slider of the other pipe fitting to move, so as to form a gap between the slider and the sealing ring, thereby realizing the connection of the pipeline. When the pipe fitting is disassembled, the slider automatically abuts against the sealing ring under the action of the elastic member, thereby realizing rapid sealing and preventing gas and liquid in the pipeline from leaking. This design simplifies the operation process, improves the convenience and safety of use.
[0039] Preferably, the fixed barrel two comprises a main body and an outer ring,
[0040] The outer ring is connected to the outer circumferential surface of the main body,
[0041] The connecting barrel comprises a connecting sleeve and an inner ring,
[0042] The inner ring is connected to the inner circumferential surface of the connecting sleeve,
[0043] The connecting barrel is sleeved outside the main body, and the end surface of the inner ring is used for abutting to the end surface of the outer ring.
[0044] By adopting the above technical scheme, reliable positioning and connection between the second fixed barrel and the connecting barrel are realized.
[0045] In summary, the present application has at least one of the following beneficial technical effects:
[0046] 1. After the two pipe joints are separated, the slider moves automatically under the action of the elastic member and forms a seal, effectively preventing gas and liquid leakage inside the pipeline, improving the safety and reliability of the system;
[0047] 2. When the pipe joints are connected, the sliders of the two joints are pressed and moved, realizing unsealing;
[0048] 3. The design of the elastic member makes the slider always have the tendency to abut against the sealing ring, so that good sealing effect can be maintained even in long-term use or vibration conditions, improving the stability and durability of the overall structure. BRIEF DESCRIPTION OF DRAWINGS
[0049] Figure 1 is a schematic view of a pipe joint.
[0050] Figure 2 is a sectional view of the pipe joint.
[0051] Figure 3 is a schematic view of a pipe joint.
[0052] Figure 4 is a sectional view of the pipe joint.
[0053] Reference signs: 1, barrel; 2, sealing ring; 21, conical surface; 3, slider; 31, sealing plate; 32, connecting rod; 33, abutting ring; 34, sealing ring; 4, elastic member; 5, first fixed barrel; 6, second fixed barrel; 61, main body; 62, outer ring; 7, connecting barrel; 71, connecting sleeve; 72, inner ring. DETAILED DESCRIPTION
[0054] The present application will be further described in detail below with reference to the accompanying drawings.
[0055] Referring to Figure 1 and Figure 2 , the present application discloses a pipe joint, comprising a barrel 1 and a sealing ring 2.
[0056] The sealing ring 2 is coaxially fixedly connected to the inner circumferential surface of the barrel 1. In this embodiment, the sealing ring 2 and the barrel 1 are integrally formed.
[0057] The pipe joint further comprises a sliding block 3 and an elastic member 4.
[0058] The sliding block 3 is slidingly embedded in the barrel 1. The elastic member 4 is connected between the barrel 1 and the sliding block 3, and the elastic member 4 causes the sliding block 3 to have a tendency to abut against the sealing ring 2.
[0059] When the sliding block 3 abuts against the sealing ring 2, the sliding block 3 blocks the barrel 1 and the sealing ring 2.
[0060] The sliding block 3 comprises a sealing plate 31, a connecting rod 32 and an abutting ring 33.
[0061] The outer diameter of the sealing plate 31 is equal to the inner diameter of the sealing ring 2, that is, the sealing plate 31 is used to be embedded in the sealing ring 2 to form a seal with the sealing ring 2.
[0062] The connecting rod 32 is provided in plurality, and all the connecting rods 32 are circumferentially spaced apart along the sealing plate 31. A gap for gas and liquid flow is formed between adjacent connecting rods 32.
[0063] One end of the connecting rod 32 is fixedly connected to the sealing plate 31. The abutting ring 33 is located on the side of the sealing ring 2 away from the sealing plate 31, and the other end of the connecting rod 32 is fixedly connected to the abutting ring 33 after penetrating through the sealing ring 2.
[0064] The connecting rod 32 is slidingly fitted to the inner circumferential surface of the sealing ring 2. The abutting ring 33 is sleeved outside all the connecting rods 32, and the end surface of the abutting ring 33 away from the sealing plate 31 is flush with the end surface of the connecting rod 32.
[0065] In this embodiment, the sealing plate 31, the connecting rod 32 and the abutting ring 33 are integrally formed.
[0066] The elastic member 4 is sleeved outside all the connecting rods 32, and the elastic member 4 is located between the sealing ring 2 and the abutting ring 33. In this embodiment, the elastic member 4 comprises a helical spring, and the two ends of the helical spring abut against the sealing ring 2 and the abutting ring 33, respectively.
[0067] The outer circumferential surface of the sealing plate 31 is provided with an embedding groove. The sliding block 3 further comprises a sealing ring 34, which is embedded in the embedding groove and protrudes out of the embedding groove.
[0068] The inner circumferential surface of the end of the sealing ring 2 away from the abutting ring 33 is provided with a tapered surface 21, which is used for abutting against the sealing ring 34 to ensure sealing.
[0069] The implementation principle of the pipe joint in the embodiment of the application is that: by arranging the sliding block 3 and the elastic member 4, when the two pipe joints are in a separated state, the sliding block 3 is automatically moved to a sealing position under the action of the elastic member 4, the gas and liquid in the pipeline are quickly blocked, and leakage is prevented.
[0070] When the two pipe joints are in a connected state, the sliding block 3 is forced to move under the pressure from the other side, so as to form a gap and allow the medium to flow. This mode is simple and efficient, and significantly improves the sealing performance and safety of the pipe joint.
[0071] With reference to Figure 3 and Figure 4 The embodiment of the application further discloses a pipe fitting, which comprises the fixed cylinder one 5, the fixed cylinder two 6, the connecting cylinder 7 and the two pipe joints.
[0072] The fixed cylinder one 5 is coaxially connected to the cylinder body 1 of one pipe joint. The fixed cylinder two 6 is coaxially connected to the cylinder body 1 of the other pipe joint.
[0073] The connecting cylinder 7 is connected to the fixed cylinder two 6, and the connecting cylinder 7 is used for detachably connecting to the fixed cylinder one 5. When the connecting cylinder 7 is connected to the fixed cylinder one 5: the sliding block 3 of any pipe joint pushes the sliding block 3 of the other pipe joint to move to form a gap between the sliding block 3 and the sealing ring 2.
[0074] Specifically, when one end of the connecting rod 32 towards the sealing plate 31 is located on the side, away from the abutting ring 33, of the sealing ring 2, a gap is formed between the sliding block 3 and the sealing ring 2.
[0075] The fixed cylinder two 6 comprises a main body 61 and an outer ring 62. The outer ring 62 is connected to the outer circumferential surface of the main body 61.
[0076] The connecting cylinder 7 comprises a connecting sleeve 71 and an inner ring 72. The inner ring 72 is connected to the inner circumferential surface of the connecting sleeve 71.
[0077] The connecting cylinder 7 is sleeved on the main body 61, and the end surface of the inner ring 72 is used for abutting to the end surface of the outer ring 62.
[0078] The connecting sleeve 71 is used for sleeving on the fixed cylinder one 5, and the connecting sleeve 71 and the fixed cylinder one 5 are detachably fixedly connected through threads.
[0079] The implementation principle of the pipe fitting in the embodiment of the application is that: when the connecting cylinder 7 is connected to the fixed cylinder one 5, the sliding block 3 of one pipe joint can push the sliding block 3 of the other pipe joint to move, so as to form a gap between the sliding block 3 and the sealing ring 2, and realize the communication of the pipeline. When the pipe joints are disassembled, the sliding block 3 is automatically abutted against the sealing ring 2 under the action of the elastic member 4, the quick sealing is realized, and the gas and liquid in the pipeline are prevented from leaking. This design simplifies the operation process, improves the convenience and safety in use.
[0080] After the two pipe joints are separated, the sliding block 3 is automatically moved and forms a seal under the action of the elastic member 4, effectively preventing gas and liquid leakage inside the pipeline, and improving the safety and reliability of the system
[0081] The above are preferred embodiments of the application, and are not intended to limit the protection scope of the application, so: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.
Claims
1. A pipe fitting, characterized in that, It includes a cylinder (1), a sealing ring (2), a slider (3), and an elastic element (4). The sealing ring (2) is connected to the inner circumferential surface of the cylinder (1). The slider (3) is slidably embedded inside the cylinder (1). The elastic element (4) is connected between the cylinder (1) and the slider (3), and the elastic element (4) causes the slider (3) to tend to press against the sealing ring (2). When the slider (3) is pressed against the sealing ring (2): the slider (3) blocks the cylinder (1) and the sealing ring (2).
2. The pipe fitting according to claim 1, characterized in that, The slider (3) includes a sealing plate (31), a connecting rod (32), and an abutment ring (33). The sealing plate (31) is used to form a seal with the sealing ring (2). The connecting rod (32) is connected to the sealing plate (31). The abutment ring (33) is connected to the connecting rod (32), and the abutment ring (33) is used for the elastic element (4) to abut against it.
3. The pipe fitting according to claim 2, characterized in that, The sealing plate (31) and the abutment ring (33) are located on both sides of the sealing ring (2). The elastic element (4) is located between the sealing ring (2) and the abutment ring (33).
4. The pipe fitting according to claim 3, characterized in that, The connecting rod (32) is provided in multiple ways, and all the connecting rods (32) are spaced apart around the sealing plate (31). The connecting rod (32) is used to slide against the inner circumference of the sealing ring (2).
5. The pipe fitting according to claim 2, 3 or 4, characterized in that, The elastic element (4) is fitted over the connecting rod (32).
6. The pipe fitting according to claim 2, characterized in that, The end face of the abutment ring (33) facing away from the sealing plate (31) is flush with the end face of the connecting rod (32).
7. The pipe fitting according to claim 2, characterized in that, The slider (3) also includes a sealing ring (34). The outer periphery of the sealing plate (31) is provided with a groove, and the sealing ring (34) is embedded in the groove.
8. The pipe fitting according to claim 2 or 7, characterized in that, The outer diameter of the sealing plate (31) is equal to the inner diameter of the sealing ring (2).
9. A pipe fitting, characterized in that, Includes a first fixed cylinder (5), a second fixed cylinder (6), a connecting cylinder (7), and the pipe fittings described in any one of claims 1-8. The fixed cylinder (5) is coaxially connected to the cylinder body (1) of a pipe joint. The fixed cylinder 2 (6) is coaxially connected to the cylinder (1) of another pipe joint. The connecting cylinder (7) is connected to the fixed cylinder two (6), and the connecting cylinder (7) is used for detachable connection to the fixed cylinder one (5). When the connecting cylinder (7) is connected to the fixed cylinder (5): the slider (3) of any pipe joint pushes the slider (3) of the other pipe joint to move such that a gap is formed between the slider (3) and the sealing ring (2).
10. The pipe fitting according to claim 9, characterized in that, The fixed cylinder 2 (6) includes a main body (61) and an outer ring (62). The outer ring (62) is connected to the outer peripheral surface of the main body (61). The connecting cylinder (7) includes a connecting sleeve (71) and an inner ring (72). The inner ring (72) is connected to the inner circumferential surface of the connecting sleeve (71). The connecting cylinder (7) is fitted over the main body (61), and the end face of the inner ring (72) is used to abut against the end face of the outer ring (62).