Leakage-proof connecting pipe
By reinstalling the spring in reverse to avoid water contact, and using the sealing static ring to squeeze the sealing movable ring, the spring is pressed to generate elastic compression force, which solves the problem of the spring being susceptible to corrosion in the prior art, resulting in reduced sealing performance, and achieves higher sealing performance and longer service life.
Patent Information
- Application Number
- CN202421681586.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-16
AI Technical Summary
In the prior art, the springs at the pipe connections are susceptible to corrosion and dirt, resulting in a reduced sealing property and may cause water leakage problems.
By reversely installing the spring so that it no longer contacts the water source, and using a sealing static ring to squeeze the sealing moving ring, the spring is pressed and elastically pressed, and sealing butt is achieved.
It effectively improves the service life of the spring, prevents water leakage at the pipe docking position, and improves sealing and installation stability.
Smart Images
Figure CN222950603U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of pipelines, in particular to a water leakage-proof connecting pipe. Background Art
[0002] In modern industrial and domestic water systems, pipe connection is a vital link. To ensure the continuity and stability of fluid delivery, the connecting pipe must have good sealing performance. Especially in application scenarios involving moving pipes, the sealing requirements at the pipe joints are more stringent. In the prior art, in order to improve the sealing of the pipe docking position, a spring is usually set at the pipe docking position, and the spring is used to tighten the sealing ring to achieve sealed docking.
[0003] The traditional way of installing springs is to install the springs in the water inlet cavity so as to use the elastic force of the springs to compress the sealing ring. However, this design has significant defects: since the springs are directly exposed to the water flow, the springs that are immersed in water for a long time are easily affected by corrosion and dirt, resulting in a shortened spring life. In addition, the springs may suffer from fatigue failure due to the impact of the water flow, causing their elastic compression force to gradually weaken and fail to effectively maintain the sealing of the pipe joints. This situation will not only reduce the sealing effect, but may also cause water leakage problems, seriously affecting the operational stability of the pipeline system. Summary of the invention
[0004] In order to solve the above problems, the utility model provides a water leakage-proof connecting pipe, which can effectively solve the deficiencies in the prior art by reversely installing the spring so that the spring no longer contacts the water source.
[0005] The utility model is realized by the following technical scheme: a water-leakage-proof connecting pipe, comprising:
[0006] A bottom tube, wherein the bottom tube has a mounting cavity, an extension tube is installed in the mounting cavity, and the extension tube partially extends into the mounting cavity and partially extends to the outside of the bottom tube;
[0007] A sealing dynamic ring is installed on the extension tube through an elastic member, one end of the elastic member is fixed to the docking cavity of the sealing dynamic ring, the other end of the spring is sleeved and fixed to the outside of the extension tube, and a first docking port is formed on the sealing dynamic ring;
[0008] A butt-jointed tube, the butt-jointed tube is butt-jointed with the bottom tube, a sealing static ring is installed on one butt-jointed surface of the butt-jointed tube, a second butt-jointed interface is formed on a surface of the sealing static ring opposite to the first butt-jointed interface, the butt-jointed tube is butt-jointed with the bottom tube, and the sealing static ring is used to squeeze the sealing dynamic ring so that the elastic part is elastically compressed, at which time the first butt-jointed interface is butt-jointed with the second butt-jointed interface to form a closed conveying pipeline.
[0009] As a preferred technical solution, the sealing dynamic ring includes a main body, a rotating ring is installed on the outside of the main body, balls are installed in the raceway between the rotating ring and the main body, and the docking cavity is arranged at the bottom of the main body.
[0010] As a preferred technical solution, it also includes an elastic seal, which is arranged on the butt joint surface of the sealing dynamic ring and the sealing static ring, and the sealing performance between the sealing dynamic ring and the sealing static ring is increased by squeezing the elastic seal.
[0011] As a preferred technical solution, the elastic member is a spring, and the spring is tightly sleeved on the outside of the extension tube.
[0012] As a preferred technical solution, a first flange connection plate is provided at the top of the bottom pipe, and a second flange connection plate is provided at the bottom of the butt pipe, and the first flange connection plate and the second flange connection plate are locked by a locking mechanism.
[0013] As an optimal technical solution, the locking mechanism uses multiple locking screws and locking nuts, and locking screw holes are set on the first flange connecting plate and the flange connecting plate. The locking screws are passed through the locking screw holes and the two flange connecting plates are locked by the locking nuts.
[0014] As a preferred technical solution, it also includes at least two bearings, at least two bearings are installed on the extension tube extending into one end of the bottom tube, the inner ring of the bearing is installed on the extension tube, and the outer ring support of the bearing is installed in the bottom tube.
[0015] As a preferred technical solution, at least two bearings are arranged on the extension tube in an interval shape, and a spacing distance is formed between the two bearings.
[0016] As a preferred technical solution, the bottom surface of the second flange is provided with a positioning step cavity, and the sealing static ring is positioned and installed in the positioning step cavity.
[0017] The beneficial effects of the utility model are as follows: the utility model swaps the positions of the spring member and the sealing dynamic ring, and uses the spring as the support and positioning of the sealing dynamic ring. When the butt-jointed pipe and the bottom pipe are butted, the sealing static ring is used to squeeze the sealing dynamic ring, so that the spring at the bottom of the sealing dynamic ring is compressed, thereby generating an elastic pressing force, and the elastic pressing force of the spring is used to achieve the sealed butt joint between the sealing dynamic ring and the sealing static ring, at which time a closed conveying pipeline is formed, so that the spring is no longer in contact with water, which can greatly improve the service life of the spring and effectively prevent water leakage at the butt joint position of the pipeline;
[0018] In addition, the utility model arranges the bearings on the extension tube separately and in intervals, which can effectively improve the installation stability of the extension tube and the bottom tube, increase the supporting effect, increase the service life of the bearings, and reduce the shaking of the extension tube. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 It is a schematic diagram of the explosion structure of the utility model;
[0021] Figure 2 It is a schematic diagram of the internal structure of the utility model;
[0022] Figure 3 For this utility model Figure 2 Schematic cross-section diagram in ;
[0023] Figure 4 For this utility model Figure 3 A partial enlarged view of the middle A;
[0024] Figure 5 It is a schematic diagram of the overall assembly of the utility model;
[0025] Description of reference numerals:
[0026] 1. Bottom tube; 2. Extension tube; 3. Sealing dynamic ring; 4. First flange connection plate; 5. Elastic seal; 6. Sealing static ring; 7. Locking screw; 8. Second flange connection plate; 9. Butt joint tube; 10. Bearing; 11. Spring; 12. Positioning step cavity; 31. Rotating ring; 32. Butt joint cavity; 33. Main body. DETAILED DESCRIPTION
[0027] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.
[0028] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.
[0029] like Figure 1-Figure 3As shown, a water-leakage-proof connecting pipe of the utility model comprises a bottom pipe 1, wherein the bottom pipe 1 has a mounting cavity, wherein an extension pipe 2 is installed in the mounting cavity, wherein the extension pipe 2 partially extends into the mounting cavity and partially extends out of the bottom pipe 1;
[0030] It also includes a sealing dynamic ring 3, which is installed on the extension tube 2 through an elastic member, one end of the elastic member is fixed to the docking cavity 32 of the sealing dynamic ring 3, and the other end of the spring 11 is sleeved and fixed to the outside of the extension tube 2. A first docking port is formed on the sealing dynamic ring 3, and the outer ring part of the sealing dynamic ring 3 can rotate, so that the cylindrical rotation of the telescopic tube can be achieved and the seal can be maintained;
[0031] It also includes a butt joint pipe 9, which is butt jointed with the bottom pipe 1. A sealing static ring 6 is installed on the butt joint surface of the butt joint pipe 9. The sealing static ring 6 forms a second butt joint surface opposite to the first butt joint surface. The butt joint pipe 9 is butt jointed with the bottom pipe 1, and the sealing static ring 6 is used to squeeze the sealing dynamic ring 3, so that the elastic member is elastically compressed. At this time, the first butt joint surface and the second butt joint surface are butt jointed to form a closed conveying pipeline.
[0032] Among them, Figure 4 As shown, the sealing dynamic ring 3 includes a main body 33, a rotating ring 31 is installed on the outside of the main body 33, balls are installed in the raceway between the rotating ring 31 and the main body 33, the docking cavity 32 is arranged at the bottom of the main body 33, and also includes an elastic seal 5, the elastic seal 5 is arranged on the docking surface of the sealing dynamic ring 3 and the sealing static ring 6, the sealing between the sealing dynamic ring 3 and the sealing static ring 6 is increased by squeezing the elastic seal 5, the elastic seal 5 is positioned and installed on the upper end surface of the rotating ring 31, when the sealing static ring 6 of the docking tube 9 is pressed against the sealing dynamic ring 3, the elastic seal 5 is pressed and positioned between the rotating ring 31 and the sealing static ring 6, and the main body 33 can rotate with the extension tube 2, and the upper end surface of the main body 33 can be lower than the rotating ring 31 to prevent the elastic seal 5 from contacting and pressing with the upper end surface of the main body 33.
[0033] In this embodiment, the elastic member is a spring 11, and the spring 11 is tightly sleeved on the outside of the extension tube 2. The outer diameter of the extension tube 2 can be slightly larger than the spring 11, so the spring 11 can be sleeved on the extension tube 2 and tightly fitted. During installation, the top of the spring 11 is first installed into the docking cavity 32 at the bottom of the sealing dynamic ring 3, and then the spring 11 is sleeved on the extension tube 2, and then the docking tube 9 is docked with the bottom tube 1, and the sealing static ring 6 is used to press down the elastic seal 5 and the sealing dynamic ring 3, so that the spring 11 is compressed, and the top of the extension tube 2 is positioned and installed in the docking cavity 32 and docked and sealed with the docking cavity 32, thereby completing the sealed docking of the pipes on both sides.
[0034] Among them, Figure 4 and Figure 5 As shown, a first flange connection plate 4 is provided on the top of the bottom pipe 1, and a second flange connection plate 8 is provided on the bottom of the butt pipe 9. The first flange connection plate 4 and the second flange connection plate 8 are locked by a locking mechanism.
[0035] Specifically, the locking mechanism adopts multiple locking screws 7 and locking nuts, and locking screw holes are set on the first flange connection plate 4 and the flange connection plate. The locking screws 7 are passed through the locking screw holes and the two flange connection plates are locked by the locking nuts. When the two flange connection plates are connected and locked, the sealing dynamic ring 3 and the sealing static ring 6 can be sealed and connected, so that a sealed channel is maintained for pipeline transmission.
[0036] like Figure 2 and Figure 3 As shown, at least two bearings 10 are included, and at least two bearings 10 are installed at one end of the extension tube 2 extending into the bottom tube 1. The inner ring of the bearing 10 is installed on the extension tube 2, and the outer ring support of the bearing 10 is installed in the bottom tube 1. Specifically, the two bearings 10 are arranged on the extension tube 2 in an interval shape, and a spacing distance is formed between the two bearings 10. In the actual process, more bearings 10 can be used. The rotation of the extension tube 2 can obtain better support by using the bearings 10 arranged at intervals. Since the extension tube 2 is long, the spacing between the bearings 10 is widened, which can effectively solve the problem of the telescopic tube having a long span and unstable rotation.
[0037] like Figure 3 As shown, the bottom surface of the second flange is provided with a positioning step cavity 12, and the sealing static ring 6 is positioned and installed in the positioning step cavity 12. The sealing static ring 6 can be disassembled and assembled relative to the second flange. During installation, one end of the sealing static ring 6 is positioned in the positioning step cavity 12. After the initial positioning is achieved, it is squeezed toward the sealing dynamic ring 3 to complete the docking seal.
[0038] In this embodiment, sealing rings can be provided at all butting and splicing positions to further improve the sealing performance of the entire pipeline after butt connection.
[0039] The beneficial effects of the utility model are as follows: the utility model swaps the positions of the spring 11 and the sealing dynamic ring 3, and uses the spring 11 as the support and positioning of the sealing dynamic ring 3. After the butt-jointed pipe 9 is butted with the bottom pipe 1, the sealing static ring 6 is used to squeeze the sealing dynamic ring 3, so that the spring 11 at the bottom of the sealing dynamic ring 3 is compressed, thereby generating an elastic pressing force, and the elastic pressing force of the spring 11 is used to achieve the sealed butt joint between the sealing dynamic ring 3 and the sealing static ring 6, at this time, a closed conveying pipeline is formed, so that the spring 11 is no longer in contact with water, which can greatly improve the service life of the spring 11 and effectively prevent water leakage at the butt joint position of the pipeline;
[0040] In addition, the utility model arranges the bearings 10 on the extension tube 2 separately and in intervals, which can effectively improve the installation stability of the extension tube 2 and the bottom tube 1, increase the supporting effect, increase the service life of the bearings 10, and reduce the shaking of the extension tube 2.
[0041] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.
Claims
1. A water-leakage-proof connecting pipe, characterized in that: include: A bottom tube (1), wherein the bottom tube (1) has a mounting cavity, wherein an extension tube (2) is installed in the mounting cavity, wherein a portion of the extension tube (2) extends into the mounting cavity and a portion of the extension tube (2) extends out of the bottom tube (1); A sealing dynamic ring (3) is mounted on the extension tube (2) via an elastic member, one end of the elastic member is fixed to a docking cavity (32) of the sealing dynamic ring (3), and the other end of the elastic member is sleeved and fixed to the outside of the extension tube (2), and a first docking port is formed on the sealing dynamic ring (3); A butt joint pipe (9) is butt jointed with the bottom pipe (1). A sealing static ring (6) is installed on one butt joint surface of the butt joint pipe (9). The sealing static ring (6) forms a second butt joint surface opposite to the first butt joint surface. The butt joint pipe (9) is butt jointed with the bottom pipe (1), and the sealing static ring (6) is used to squeeze the sealing dynamic ring (3), so that the elastic member is elastically compressed. At this time, the first butt joint surface and the second butt joint surface are butt jointed to form a closed conveying pipeline.
2. The water-leakage-proof connecting pipe according to claim 1, characterized in that: The sealing dynamic ring (3) comprises a main body (33), a rotating ring (31) is installed outside the main body (33), a ball is installed in the raceway between the rotating ring (31) and the main body (33), and the docking cavity (32) is arranged at the bottom of the main body (33).
3. The water-leakage-proof connecting pipe according to claim 1, characterized in that: It also includes an elastic seal (5), which is arranged on the butt joint surface between the sealing dynamic ring (3) and the sealing static ring (6), and the sealing performance between the sealing dynamic ring (3) and the sealing static ring (6) is increased by squeezing the elastic seal (5).
4. The water-leakage-proof connecting pipe according to claim 1, characterized in that: The elastic member is a spring (11), and the spring (11) is tightly sleeved on the outside of the extension tube (2).
5. The water-leakage-proof connecting pipe according to claim 1, characterized in that: The top of the bottom pipe (1) is provided with a first flange connection plate (4), and the bottom of the butt pipe (9) is provided with a second flange connection plate (8), and the first flange connection plate (4) and the second flange connection plate (8) are locked by a locking mechanism.
6. The water-leakage-proof connecting pipe according to claim 5, characterized in that: The locking mechanism uses a plurality of locking screws (7) and locking nuts. Locking screw holes are provided on the first flange connection plate (4) and the flange connection plate. The locking screws (7) are passed through the locking screw holes and the two flange connection plates are locked by the locking nuts.
7. The water-leakage-proof connecting pipe according to claim 1, characterized in that: It also comprises at least two bearings (10), which are mounted on an extension tube (2) extending into one end of the bottom tube (1), wherein the inner ring of the bearing (10) is mounted on the extension tube (2), and the outer ring support of the bearing (10) is mounted in the bottom tube (1).
8. The water-leakage-proof connecting pipe according to claim 7, characterized in that: At least two bearings (10) are arranged on the extension tube (2) in an interval shape, and a spacing distance is formed between the two bearings (10).
9. The water-leakage-proof connecting pipe according to claim 5, characterized in that: The bottom surface of the second flange connection plate is provided with a positioning step cavity (12), and the sealing static ring (6) is positioned and installed in the positioning step cavity (12).