Pipeline sealing structure
By setting up bosses and snapping teeth on the outer wall of the connector and applying radial force on different pipe sections of the elastic hose, the problem of insufficient sealing force at the connection between the elastic hose and the connector is solved, and the reliability of strength and sealing is achieved, and the leakage of media is avoided.
Patent Information
- Application Number
- CN202422367987.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-09-26
AI Technical Summary
In the prior art, the radial sealing force at the connection between the elastic hose and the connection pipe is reduced, resulting in insufficient connection strength, and relative slippage occurs at the connection between the elastic hose and the connection pipe, which in turn leads to medium leakage.
By providing a boss and a snap teeth between the outer wall surface of the connecting pipe, a radial force is applied to different pipe body sections of the elastic hose respectively, so that the first pipe body section and the snap teeth are tightly engaged, and the second pipe body section and the light surface section of the connecting pipe are closely connected, forming an independent sealing area to enhance the connection strength and seal reliability.
It effectively avoids the relative slippage between the elastic hose and the connector, ensures the connection strength, and achieves the reliability of the seal, extending the service life of the elastic hose.
Smart Images
Figure CN223228074U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of pipeline sealing, and in particular relates to a pipeline sealing structure. Background Art
[0002] The seal between elastic hoses and connecting pipes is usually used in pipeline systems for transporting liquid media. After long-term use, the elastic properties of the elastic hoses will decay under the effects of medium corrosion, pressure shock, light and heat aging, etc.
[0003] At the connection between the elastic hose and the pipe, the F 径向密封力 will decrease when f max =μF 径向密封力 <F 轴向水压 When the maximum friction force f max Not enough to ensure the connection strength, even if F 径向密封力 Sufficient sealing stress can still be guaranteed after attenuation, and relative slippage will occur at the connection between the elastic hose and the connecting pipe, and then fall off, causing medium leakage. Utility Model Content
[0004] The present application aims to at least improve the technical problems in the prior art of attenuation of the elastic properties of the elastic hose and sealing problems at the connection between the elastic hose and the pipe, which may lead to medium leakage.
[0005] The present application provides a pipeline sealing structure, comprising:
[0006] A connecting pipe, wherein the outer wall surface of the connecting pipe is provided with bosses and latches at intervals, and a connecting pipe smooth section is formed between the bosses and the latches;
[0007] An elastic hose is sleeved outside the connecting pipe;
[0008] a first clamp, which is sleeved on a first tube section corresponding to the latching teeth outside the elastic hose and applies a radial force toward the latching teeth to the first tube section; and
[0009] The second clamp is sleeved on the second tube section corresponding to the smooth surface section of the connecting pipe outside the elastic hose, and applies a radial force toward the smooth surface section of the connecting pipe to the second tube section.
[0010] According to the pipeline sealing structure of the present application, an appropriate radial force is applied by the first clamp so that the first tube section is tightly engaged with the latch teeth, thereby increasing the strength of the mechanical connection, which can avoid relative slippage between the elastic hose and the connecting pipe; an appropriate radial force is applied by the second clamp so that the elastic hose is pressed and tightly fits the smooth section of the connecting pipe, thereby forming an effective seal, that is, the area where the first tube section of the present application contacts and engages with the latch teeth and the area where the second tube section contacts and seals with the smooth section of the connecting pipe are relatively independent, thereby ensuring the strength of the connection between the elastic hose and the connecting pipe while having the reliability of the seal.
[0011] According to an embodiment of the present application, the inner wall surface of the elastic hose forms a groove engaged with the locking teeth, and forms a groove engaged with the boss.
[0012] According to an embodiment of the present application, there are multiple latching teeth, and there are multiple latching slots, and the latching teeth correspond to the latching slots one by one.
[0013] According to an embodiment of the present application, each of the latch teeth is inclined toward a first direction, and the first direction is opposite to a direction in which the elastic hose is detached from the connecting pipe.
[0014] According to one embodiment of the present application, a plurality of the latching tooth arrays are arranged and arranged in a ring along the outer wall surface of the connecting pipe.
[0015] According to an embodiment of the present application, the latching groove corresponding to the latching tooth is located at the end of the elastic hose.
[0016] According to one embodiment of the present application, the boss is provided at the end of the connecting pipe.
[0017] According to an embodiment of the present application, a retaining ring is further provided on the outer wall surface of the connecting pipe, and the retaining ring abuts against the end of the elastic hose.
[0018] According to one embodiment of the present application, the outer wall surface of the elastic hose is formed with a first groove cooperating with the first clamp and a second groove cooperating with the second clamp.
[0019] According to an embodiment of the present application, the length of the first clamp along the direction of the elastic hose is not less than the length of the plurality of teeth along the direction of the elastic hose.
[0020] The above one or more technical solutions in the embodiments of the present application have at least one of the following technical effects:
[0021] By applying an appropriate radial force through the first clamp, the first tube section is tightly engaged with the latch teeth, thereby increasing the strength of the mechanical connection, which can prevent relative slippage between the elastic hose and the connecting pipe; by applying an appropriate radial force through the second clamp, the elastic hose is pressed and tightly fits the smooth section of the connecting pipe, thereby forming an effective seal, that is, the area where the first tube section of the application contacts and engages with the latch teeth and the area where the second tube section contacts and seals with the smooth section of the connecting pipe are relatively independent, thereby ensuring the strength of the connection between the elastic hose and the connecting pipe while also having the reliability of the seal.
[0022] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0024] Figure 1 is a cross-sectional view of a pipeline sealing structure provided in an embodiment of the present application;
[0025] Figure 2 It is a cross-sectional view of the connecting pipe provided in an embodiment of the present application.
[0026] Reference numerals:
[0027] 100, connecting pipe; 110, boss; 120, latching teeth; 130, retaining ring; 140, connecting pipe smooth section;
[0028] 200, elastic hose; 210, first tube section; 220, second tube section;
[0029] 300, clamp assembly; 310, first clamp; 320, second clamp. DETAILED DESCRIPTION
[0030] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.
[0031] The seal between elastic hoses and connecting pipes is usually used in pipeline systems for transporting liquid media. After long-term use, the elastic properties of the elastic hoses will decay under the effects of medium corrosion, pressure shock, light and heat aging, etc.
[0032] At the connection between the elastic hose and the pipe, the F 径向密封力 will decrease when f max =μF径向密封力 <F 水压 When the maximum friction force f max Not enough to ensure the connection strength, even if F 径向密封力 Sufficient sealing stress can still be guaranteed after attenuation, and relative slippage will occur at the connection between the elastic hose and the connecting pipe, and then fall off, causing medium leakage.
[0033] In some embodiments of the related art, a clamp is provided, which is sleeved outside the elastic hose and is used to apply excessive F 径向密封力 (clamp locking force) to increase the connection strength, which will cause the elastic hose to be over-compressed, causing life degradation and leading to premature leakage of the medium.
[0034] Likewise, the clamp applies too little F 径向密封力 (Clamp locking force) will cause insufficient radial sealing force, and as the elasticity of the elastic hose decays, medium leakage will occur after a period of time.
[0035] In some other embodiments of the related art, in order to increase the connection strength between the elastic hose and the pipe and avoid excessive F 径向密封力 (clamp locking force) to increase the connection strength, and instead set a barb structure on the inner surface of the elastic hose and the outer surface of the connecting pipe to increase the friction coefficient μ between the elastic hose and the connecting pipe. However, this method will damage the contact surface between the elastic hose and the connecting pipe, resulting in poor sealing and medium leakage.
[0036] Reference below Figure 1 and Figure 2 A pipeline sealing structure according to an embodiment of the present application is described.
[0037] like Figure 1 and Figure 2 As shown, the pipeline sealing structure includes: a connecting pipe 100 , an elastic hose 200 , a first clamp 310 and a second clamp 320 .
[0038] Bosses 110 and latches 120 are provided on the outer wall of the connecting pipe 100 at intervals, and a smooth surface section of the connecting pipe 100 is formed between the bosses 110 and the latches 120 .
[0039] The material selection of the connecting pipe 100 depends on the properties of the medium (such as corrosiveness, etc.). In actual implementation, the connecting pipe 100 can be made of metal materials (such as stainless steel, copper, aluminum alloy, etc.) or high-strength plastic.
[0040] The elastic hose 200 is sleeved on the outside of the connecting pipe 100 ; the inner diameter, wall thickness and other dimensions of the elastic hose 200 should be controlled within a reasonable tolerance range to ensure that it has a good fit with the connecting pipe 100 .
[0041] The material of the elastic hose 200 is also selected depending on the properties of the medium. In actual implementation, the elastic hose 200 can be made of a material with good durability, corrosion resistance, aging resistance and appropriate elasticity (such as rubber, silicone, polyurethane, etc.).
[0042] The elastic hose 200 includes a first tube section 210 and a second tube section 220 .
[0043] The first clamp 310 is sleeved on the first tube section 210 outside the elastic hose 200 and corresponding to the latching teeth 120 , and applies a radial force toward the latching teeth 120 to the first tube section 210 .
[0044] The second clamp 320 is sleeved on the second tube section 220 outside the elastic hose 200 and corresponding to the smooth surface section of the connecting pipe 100 , and applies a radial force on the second tube section 220 toward the smooth surface section of the connecting pipe 100 .
[0045] In this embodiment, the first tube section 210 of the elastic hose 200 is clamped between the first clamp 310 and the latching teeth 120 of the connecting pipe 100. The first clamp 310 applies an appropriate radial force to tightly engage the first tube section 210 with the latching teeth 120, thereby increasing the strength of the mechanical connection and preventing relative slippage between the elastic hose 200 and the connecting pipe 100.
[0046] The second tube section 220 of the elastic hose 200 is clamped between the second clamp 320 and the smooth section of the connecting pipe 100, and an appropriate radial force (F 径向密封力 ), so that the elastic hose 200 is pressed and closely fits the smooth section of the connecting pipe 100, thereby forming an effective seal.
[0047] Even if the elastic hose 200 ages after long-term use and the first tube section 210 is damaged during the engagement process between the locking teeth 120 and the first tube section 210, it will not affect the contact and sealing area between the second tube section 220 and the smooth section of the connecting pipe 100.
[0048] That is, in this embodiment, the area where the first tube section 210 contacts and engages with the latch teeth 120 is relatively independent from the area where the second tube section 220 contacts and seals with the smooth surface section of the connecting pipe 100, thereby ensuring the connection strength between the elastic hose 200 and the connecting pipe 100 while also ensuring sealing reliability.
[0049] To summarize, according to the pipeline sealing structure provided in the embodiment of the present application, an appropriate radial force is applied by the first clamp 310, so that the first tube section 210 is tightly engaged with the latch teeth 120, thereby increasing the strength of the mechanical connection, which can prevent relative slippage between the elastic hose 200 and the connecting pipe 100; an appropriate radial force is applied by the second clamp 320, so that the elastic hose 200 is pressed and tightly fits the smooth section of the connecting pipe 100, thereby forming an effective seal, that is, the contact and engagement area of the first tube section 210 and the latch teeth 120 of the present application and the contact and sealing area of the second tube section 220 and the smooth section of the connecting pipe 100 are relatively independent, thereby ensuring the connection strength of the elastic hose 200 and the connecting pipe 100 while having the reliability of the seal.
[0050] like Figure 1 and Figure 2 As shown, the inner wall surface of the first tube section 210 forms a groove engaged with the locking teeth 120 , and the inner wall surface of the second tube section 220 forms a groove engaged with the boss 110 .
[0051] In actual implementation, there are multiple latching teeth 120 and multiple latching slots, and the latching teeth 120 correspond to the latching slots one by one.
[0052] In specific implementation, there may be at least two possible situations:
[0053] Case 1: After the first clamp 310 applies an appropriate radial force, the inner wall surface of the first tube section 210 is compressed to form a groove that engages with the locking teeth 120 .
[0054] Case 2: Before the first clamp 310 applies an appropriate radial force, a groove is first formed on the inner wall surface of the first tube section 210 and can be correspondingly engaged with the locking teeth 120 .
[0055] like Figure 1 and Figure 2 As shown, the outer wall surface of the first pipe body section 210 forms a first groove that cooperates with the first clamp 310 , and the outer wall surface of the second pipe body section 220 forms a second groove that cooperates with the second clamp 320 .
[0056] In specific implementation, there may be at least two possible situations:
[0057] Case 1: After the first clamp 310 applies an appropriate radial force, the outer wall surface of the first tube segment 210 is compressed to form a first groove that cooperates with the first clamp 310; at the same time, after the second clamp 320 applies an appropriate radial force, the outer wall surface of the second tube segment 220 is compressed to form a second groove that cooperates with the second clamp 320.
[0058] Case 2: Before the first clamp 310 applies an appropriate radial force, a first groove is first formed on the outer wall of the first tube segment 210 and can cooperate with the first clamp 310; at the same time, before the second clamp 320 applies an appropriate radial force, a second groove is first formed on the outer wall of the second tube segment 220 and can cooperate with the second clamp 320.
[0059] In actual implementation, the length of the first clamp 310 along the direction of the elastic hose 200 is not less than the length of the plurality of teeth 120 along the direction of the elastic hose 200 .
[0060] When the length of the first clamp 310 is greater than or equal to the length of the multiple teeth 120 along the direction of the elastic hose 200, the radial force applied by the first clamp 310 to the multiple teeth 120 is more uniform. This can avoid the problem of stress concentration caused by the multiple teeth 120 being only partially compressed due to the first clamp 310 being too short. This embodiment can achieve the purpose of extending the service life of the elastic hose 200.
[0061] like Figure 1 As shown, in some embodiments, each latch 120 is inclined toward a first direction, which is opposite to the direction in which the elastic hose 200 is detached from the connecting pipe 100 .
[0062] In this embodiment, the latching teeth 120 are inclined in a first direction opposite to the detachment direction of the elastic hose 200. The detachment direction of the elastic hose 200 can be consistent with the flow direction of the fluid medium inside the elastic hose 200. When the elastic hose 200 is detached from the connecting pipe 100, the latching teeth 120 will tightly engage with the latching groove formed by the inner wall surface of the first tube section 210 to better prevent the elastic hose 200 from moving relative to the connecting pipe 100.
[0063] In actual implementation, the latch teeth 120 are arranged in an array and are disposed along the outer wall of the pipe 100. The plurality of latch teeth 120 can form a bamboo barb and engage with the plurality of latch grooves in a one-to-one correspondence.
[0064] In actual implementation, the plurality of latching teeth 120 are arranged in an array and disposed along the outer wall of the connecting pipe 100 .
[0065] In actual implementation, a retaining ring 130 is protruded from the outer wall of the connecting pipe 100 , and the retaining ring 130 abuts against the end of the elastic hose 200 .
[0066] This design, on the one hand, prevents the elastic hose 200 from moving in a direction opposite to the first direction, thereby improving the long-term stability of the groove connection formed by the latching teeth 120 and the inner wall surface of the first tube section 210; on the other hand, it serves as a positioning reference point during the installation process, so that the second tube section 220 of the elastic hose 200 is pressed against the smooth section of the connecting pipe 100.
[0067] Furthermore, the corresponding groove of the latching teeth 120 is located at the end of the elastic hose 200. The boss 110 is provided at the end of the connecting pipe 100. This allows the second tube section 220 of the elastic hose 200 to be pressed against the smooth surface of the connecting pipe 100 over a larger area, and also facilitates the installation of the second clamp 320 on the outer wall of the second tube section 220.
[0068] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.
[0069] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0070] In the description of this application, "first feature" and "second feature" may include one or more of the features.
[0071] In the description of this application, “plurality” means two or more.
[0072] In the description of the present application, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact with each other, or the first and second features being in contact with each other not directly but via another feature therebetween.
[0073] In the description of this application, a first feature “on”, “above” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.
[0074] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
[0075] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.
Claims
1. A pipeline sealing structure, characterized in that: include: A connecting pipe, wherein the outer wall surface of the connecting pipe is provided with bosses and latches at intervals, and a connecting pipe smooth section is formed between the bosses and the latches; An elastic hose is sleeved outside the connecting pipe; a first clamp, which is sleeved on a first tube section corresponding to the latching teeth outside the elastic hose and applies a radial force toward the latching teeth to the first tube section; as well as, The second clamp is sleeved on the second tube section corresponding to the smooth surface section of the connecting pipe outside the elastic hose, and applies a radial force toward the smooth surface section of the connecting pipe to the second tube section.
2. The pipeline sealing structure according to claim 1, characterized in that: The inner wall surface of the first tube body section forms a locking groove engaged with the locking teeth, and the inner wall surface of the second tube body section forms a groove engaged with the boss.
3. The pipeline sealing structure according to claim 2, characterized in that: There are multiple latching teeth, and there are multiple latching slots, and the latching teeth correspond to the latching slots in a one-to-one manner.
4. The pipeline sealing structure according to claim 3, characterized in that: Each of the latch teeth is inclined toward a first direction, which is opposite to a direction in which the elastic hose is separated from the connecting pipe.
5. The pipeline sealing structure according to claim 3, characterized in that: A plurality of the latching teeth are arranged in an array and are arranged in a ring along the outer wall surface of the connecting pipe.
6. The pipeline sealing structure according to any one of claims 2 to 5, characterized in that: The locking groove corresponding to the locking teeth is located at the end of the elastic hose.
7. The pipeline sealing structure according to any one of claims 1 to 5, characterized in that: The boss is arranged at the end of the connecting pipe.
8. The pipeline sealing structure according to any one of claims 1 to 5, characterized in that: The outer wall surface of the connecting pipe is also provided with a retaining ring, which abuts against the end of the elastic hose.
9. The pipeline sealing structure according to claim 3, characterized in that: The outer wall surface of the first pipe body section forms a first groove that cooperates with the first clamp, and the outer wall surface of the second pipe body section forms a second groove that cooperates with the second clamp.
10. The pipeline sealing structure according to claim 9, characterized in that: The length of the first clamp along the direction of the elastic hose is not less than the length of the plurality of teeth along the direction of the elastic hose.