Leakage-proof device for steel-plastic composite pipe connecting piece
By designing a leak-proof device for steel-plastic composite pipe connectors with a sealing connection and dust removal mechanism, the problems of rapid connection and dust cleaning in the existing technology are solved, achieving the effects of rapid installation, tight connection and long service life.
Patent Information
- Application Number
- CN202520700196.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-04-15
AI Technical Summary
Existing steel-plastic composite pipe connector leak-proof devices cannot quickly connect and guarantee a sealing effect, and cannot effectively clean dust, affecting installation efficiency and quality.
A leak-proof device for steel-plastic composite pipe connectors, including a sealing connection mechanism and a dust removal mechanism, was designed. The sealing connection mechanism enables quick connection and multiple sealing, while the dust removal mechanism removes dust to ensure tight connection. The connection is achieved using components such as sealing blocks, rotating rods, locking blocks, and springs, and dust removal is performed using airbags and air blowing components.
It simplifies the installation process, reduces labor costs, ensures tightness at the joints, prevents leaks, maintains stable operation of the piping system, extends service life, and reduces replacement costs.
Smart Images

Figure CN223868786U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline leak-proof connection, and in particular to a leak-proof device for steel-plastic composite pipe connectors. Background Technology
[0002] Steel-plastic composite pipe fittings are components used to connect two or more steel-plastic composite pipes, linking the piping system into a unified whole through specific connection methods. Steel-plastic composite pipe leak-proof devices are components or devices used to prevent leaks in the piping system. They ensure the tightness and sealing of the pipe connections through specific structures and materials.
[0003] Chinese Patent No. CN215981329U discloses a leak-proof connection device for drainage pipes. The leak-proof connection components effectively reduce leakage at the pipe connections. A double-layer leak-proof rubber layer sandwiched within the leak-proof double connection disc provides double-layer protection, further enhancing the leak-proof effect. A return flow component effectively guides water into the return pipe through the return connection pipe, preventing blockages and ensuring return flow. A pressure-reducing leak-proof component, comprising a pressure-reducing drainage pipe and a pressure-reducing connector, effectively reduces pressure during drainage by allowing the pressure to flow through the pipe into the pressure-reducing connector, thus relieving the pressure outside the pipe. This solves the problem of bursting and deformation at the connection points often caused by pressure in existing technologies.
[0004] However, the above-mentioned publicly available solutions have the following shortcomings: the existing anti-leakage devices for steel-plastic composite pipe connectors cannot quickly connect the connectors and steel-plastic composite pipes together and ensure a sealing effect, which greatly affects the installation efficiency of the pipeline. At the same time, it is impossible to clean the dust at the installation site, which makes the dust affect the quality of the installation. Utility Model Content
[0005] The purpose of this utility model is to address the problem in the background technology that it is impossible to quickly understand steel-plastic composite pipes and connectors, and to propose a leak-proof device for steel-plastic composite pipe connectors.
[0006] The technical solution of this utility model is as follows: a leak-proof device for steel-plastic composite pipe connectors, including a connector body; and further comprising:
[0007] Connecting disc one is located at the end of the connector body. A sealing groove is provided on the inner side of connecting disc one. Connecting disc two is provided on the side of connecting disc one. The side of connecting disc two away from connecting disc one is connected to the steel-plastic composite pipe. The shape of the sealing groove is complex. Connecting disc one and connecting disc two are connected together through the sealing groove. After connection, the sealing groove part is blocked to seal the connection.
[0008] A sealing connection mechanism is provided on the second connecting plate and is used to connect the connector body and the steel-plastic composite pipe together.
[0009] And a dust removal mechanism, which is located on the outside of the connecting plate 1, is used to remove dust from the sealing groove.
[0010] Preferably, the sealing connection mechanism includes a connection assembly and a sealing assembly;
[0011] The connecting component is slidably disposed on the side of the sealing groove to connect connecting plate two and connecting plate one together;
[0012] The sealing component is located on the side of the second connecting plate and is used to provide multiple seals at the connection between the connector body and the steel-plastic composite pipe.
[0013] Preferably, the connecting assembly includes a sealing block, a rotating rod, a locking block, and a spring;
[0014] The sealing block is slidably disposed on the inner side of the connecting plate two, the rotating rod is rotatably disposed at the end of the sealing block, the locking block is rotatably disposed at the end of the rotating rod away from the sealing block, the spring is disposed on the inner side of the sealing groove, the telescopic tube is disposed on the outer side of the spring, the sliding block is disposed at the end of the telescopic tube away from the sealing groove, the fixing block is disposed on the outer side of the sealing block, and the sliding groove is disposed on the inner side of the connecting plate two.
[0015] Preferably, the sealing and plugging assembly includes a straight slide rail one, a sealing door one, and a sealing door two;
[0016] A straight slide rail is located on the side of the connecting plate 2. A closed door 1 is slidably mounted on the straight slide rail 1. A closed door 2 is located on the side of the closed door 1. A connecting plate is provided on the outer side of the connecting plate 1. A sealing ring is provided on the side of the connecting plate away from the connecting plate 1.
[0017] Preferably, the dust removal mechanism includes mounting plates and an air blowing assembly;
[0018] The mounting plate is installed on the first connecting plate;
[0019] The air blowing assembly is mounted on the mounting plate and is used to generate airflow by squeezing to remove dust from the inside of the sealing groove.
[0020] Preferably, the air blowing assembly includes an airbag, a sliding plate, a straight slide rail, a connecting rod, and a power ring;
[0021] An airbag is located on the top of the mounting plate, a sliding plate is located on the top of the airbag, a second straight slide rail is located on the side of the sliding plate, the bottom of the second straight slide rail is connected to the top of the first connecting plate, a linkage rod is rotatably located on the side of the sliding plate, a power ring is rotatably located at the end of the linkage rod away from the sliding plate, a connecting pipe is located at the bottom of the airbag, and an air inlet is located at the bottom of the connecting pipe.
[0022] Compared with the prior art, the present invention has the following beneficial technical effects:
[0023] 1. Through the setting of the sealing connection mechanism, connecting plate one and connecting plate two are connected and sealed together by a clamping block and a sealing block. The connecting body and steel-plastic composite pipe can be disassembled and installed simply by pressing the sealing block and moving the sealing door one and sealing door two. This simplifies the installation steps, reduces the time and labor costs required for installation, facilitates the maintenance, inspection and replacement of pipelines, and ensures the tightness of the connection, effectively preventing liquid or gas leakage, helping to maintain the pressure stability in the pipeline system and avoiding the degradation of system performance due to leakage.
[0024] 2. By setting up a dust removal mechanism, pressing the power ring controls the airbag to generate airflow to blow dust into the sealing groove. This ensures that the connector body and the surface of the steel-plastic composite pipe are tightly fitted, avoiding gaps and leaks caused by dust and impurities. This not only helps maintain the stable operation of the pipeline system, but also effectively prevents environmental pollution and safety hazards. It can also reduce friction and corrosion between the connector and impurities, extend its service life, and reduce replacement costs. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;
[0026] Figure 2 This is a schematic diagram of the sealing connection mechanism;
[0027] Figure 3 This is a schematic diagram of the internal structure of the sealing connection mechanism;
[0028] Figure 4 This is a schematic diagram of the dust removal mechanism;
[0029] Figure 5 This is a schematic diagram of the internal structure of the dust removal mechanism.
[0030] Reference numerals in the attached drawings: 1. Connector body; 201. Connecting plate one; 202. Connecting plate two; 203. Straight slide rail one; 204. Enclosing door one; 205. Enclosing door two; 206. Sealing block; 207. Rotating rod; 208. Sealing groove; 209. Locking block; 210. Spring; 211. Telescopic tube; 212. Sliding block; 213. Fixing block; 214. Slide groove; 215. Connecting plate; 216. Sealing ring; 301. Mounting piece; 302. Airbag; 303. Sliding plate; 304. Straight slide rail two; 305. Linking rod; 306. Power ring; 307. Connecting tube; 308. Air inlet. Detailed Implementation
[0031] Example 1
[0032] like Figures 1-4 As shown, the present invention proposes a leak-proof device for steel-plastic composite pipe connectors, comprising a connector body 1, a connecting disc 201, a sealing connection mechanism, and a dust removal mechanism.
[0033] Connecting disc 1 201 is located at the end of the connector body 1. A sealing groove 208 is provided on the inner side of connecting disc 1 201. Connecting disc 2 202 is provided on the side of connecting disc 1 201. The side of connecting disc 2 202 away from connecting disc 1 201 is connected to the steel-plastic composite pipe. The shape of the sealing groove 208 is complex. Connecting disc 1 201 and connecting disc 2 202 are connected together through the sealing groove 208. After connection, part of the sealing groove 208 is blocked to seal the connection.
[0034] A sealing connection mechanism is provided on the connecting plate 202, which is used to connect the connector body 1 and the steel-plastic composite pipe together;
[0035] The dust removal mechanism is located on the outside of the connecting plate 201 and is used to remove dust from the sealing groove 208.
[0036] The sealing connection mechanism includes a connecting component and a sealing component; the connecting component is slidably disposed on the side of the sealing groove 208 and is used to connect the second connecting plate 202 and the first connecting plate 201 together; the sealing component is disposed on the side of the second connecting plate 202 and is used to perform multiple sealing at the connection between the connecting body 1 and the steel-plastic composite pipe. The connecting assembly includes a sealing block 206, a rotating rod 207, a locking block 209, and a spring 210. The sealing block 206 is slidably disposed on the inner side of the connecting plate 202. The rotating rod 207 is rotatably disposed at the end of the sealing block 206. The locking block 209 is rotatably disposed at the end of the rotating rod 207 away from the sealing block 206. The spring 210 is disposed on the inner side of the sealing groove 208. A telescopic tube 211 is disposed on the outer side of the spring 210. A sliding block 212 is disposed at the end of the telescopic tube 211 away from the sealing groove 208. A fixing block 213 is disposed on the outer side of the sealing block 206. A sliding groove 214 is disposed on the inner side of the connecting plate 202. The fixing block 213 can slide in the sliding groove 214, thereby restricting the sealing block 206 within the connecting plate 202. The sealing and plugging assembly includes a straight slide rail 203, a sealing door 204, and a sealing door 205. The straight slide rail 203 is located on the side of the connecting plate 202. The sealing door 204 is slidably mounted on the straight slide rail 203. The sealing door 205 is located on the side of the sealing door 204 and is also slidably mounted on the straight slide rail 203. A mating block is provided on the side of the sealing door 204, and a mating hole is provided on the side of the sealing door 205. The mating block and the mating hole can be connected together to restrict the position of the sealing block. A connecting plate 215 is provided on the outer side of the connecting plate 201, and a sealing element is provided on the side of the connecting plate 215 away from the connecting plate 201. Ring 216, the sealing ring 216 is located at the junction of connecting plate one 201 and connecting plate two 202, thereby sealing the joint. Connecting plate one 201 and connecting plate two 202 are aligned and fitted together. Then, the sealing block 206 is pressed. When the sealing block 206 moves, it drives the two locking blocks 209 to move to both sides through the rotating rod 207, thereby squeezing the sliding block 212. After the sealing block 206 is completely locked into the connecting plate two 202, the closing door one 204 and closing door two 205 are moved and locked together, thereby restricting the position of the sealing block 206, thereby connecting connecting plate one 201 and connecting plate two 202 together.
[0037] Example 2
[0038] like Figures 4-5 As shown, this utility model proposes a leak-proof device for steel-plastic composite pipe connectors. Compared with Embodiment 1, this embodiment details the structure of the dust removal mechanism.
[0039] The dust removal mechanism includes a mounting plate 301 and an air blowing assembly. The mounting plate 301 is mounted on the connecting plate 201. The air blowing assembly is mounted on the mounting plate 301 and is used to generate airflow by compression to remove dust from the inside of the sealing groove 208. The air blowing assembly includes an air bladder 302, a sliding plate 303, a second straight slide rail 304, a connecting rod 305, and a power ring 306. The air bladder 302 is located on top of the mounting plate 301, the sliding plate 303 is located on top of the air bladder 302, the second straight slide rail 304 is located on the side of the sliding plate 303, the bottom of the second straight slide rail 304 is connected to the top of the connecting plate 201, the connecting rod 305 is rotatably mounted on the side of the sliding plate 303, and the power ring 306 is rotatably mounted away from the connecting rod 305. At one end of the sliding plate 303, a connecting pipe 307 is provided at the bottom of the airbag 302. An air inlet 308 is provided at the bottom of the connecting pipe 307. The air inlet 308 is conical and opens downward. When the power ring 306 is pressed, the power ring 306 drives the sliding plate 303 to move through the linkage rod 305. When the sliding plate 303 is pressed down, it squeezes the airbag 302 to generate airflow. The airflow is blown into the sealing groove 208 through the connecting pipe 307 and the air inlet 308, thereby removing the dust in the sealing groove 208.
[0040] In summary, when using this utility model, before installing the steel-plastic composite pipe, press the power ring 306. The power ring 306 drives the sliding plate 303 to move via the connecting rod 305. When the sliding plate 303 presses down, it squeezes the airbag 302, thereby generating airflow. The airflow is blown into the sealing groove 208 through the connecting pipe 307 and the air blowing port 308, thereby removing the dust in the sealing groove 208. After the dust is removed, align and attach the connecting disc 1 201 and the connecting disc 202 together. Then press the sealing block 206. When the sealing block 206 moves, it drives the two locking blocks 209 to move to both sides via the rotating rod 207, thereby squeezing the sliding block 212. When the sealing is complete... After block 206 is fully engaged with connecting plate 202, move sealing door 1 204 and sealing door 205 and engage them together, thereby restricting the position of sealing block 206 and connecting plate 1 201 and connecting plate 202 together. Sealing ring 216 further seals the connecting body 1 and steel-plastic composite pipe. When disassembly is required, separate sealing door 1 204 and sealing door 205 to release sealing block 206 from restraint. Locking block 209 is ejected under the action of spring 210, thereby separating connecting plate 1 201 and connecting plate 202 for quick disassembly.
[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.
Claims
1. A leak-proof device for steel-plastic composite pipe connectors, comprising a connector body (1); characterized in that, Also includes: Connecting disc one (201) is located at the end of the connector body (1). A sealing groove (208) is provided on the inner side of connecting disc one (201). Connecting disc two (202) is provided on the side of connecting disc one (201). The side of connecting disc two (202) away from connecting disc one (201) is connected to the steel-plastic composite pipe. The shape of the sealing groove (208) is complex. Connecting disc one (201) and connecting disc two (202) are connected together through the sealing groove (208). After connection, the sealing groove (208) is partially blocked to seal the connection. A sealing connection mechanism is provided on the second connecting plate (202) to connect the connector body (1) and the steel-plastic composite pipe together; And a dust removal mechanism, which is located on the outside of the connecting plate (201) and is used to remove dust from the sealing groove (208).
2. The anti-leakage device for steel-plastic composite pipe connectors according to claim 1, characterized in that, The sealing connection mechanism includes a connecting assembly and a sealing assembly; The connecting component is slidably disposed on the side of the sealing groove (208) for connecting the second connecting plate (202) and the first connecting plate (201) together; The sealing component is located on the side of the connecting plate 2 (202) and is used to seal the connection between the connector body (1) and the steel-plastic composite pipe in multiple ways.
3. The anti-leakage device for steel-plastic composite pipe connectors according to claim 2, characterized in that, The connecting assembly includes a blocking block (206), a rotating rod (207), a locking block (209), and a spring (210); The sealing block (206) is slidably disposed on the inner side of the connecting plate 2 (202), the rotating rod (207) is rotatably disposed on the end of the sealing block (206), the locking block (209) is rotatably disposed on the end of the rotating rod (207) away from the sealing block (206), the spring (210) is disposed on the inner side of the sealing groove (208), the spring (210) is disposed on the outer side of the telescopic tube (211), the telescopic tube (211) is disposed on the end away from the sealing groove (208) and the sealing block (212) is disposed on the outer side of the sealing block (206) and the connecting plate 2 (202) is disposed on the inner side of the sliding groove (214).
4. The anti-leakage device for steel-plastic composite pipe connectors according to claim 3, characterized in that, The sealing and plugging assembly includes a straight slide rail one (203), a sealing door one (204), and a sealing door two (205); A straight slide rail 1 (203) is located on the side of the connecting plate 2 (202), a closed door 1 (204) is slidably mounted on the straight slide rail 1 (203), a closed door 2 (205) is located on the side of the closed door 1 (204), a connecting plate (215) is provided on the outside of the connecting plate 1 (201), and a sealing ring (216) is provided on the side of the connecting plate (215) away from the connecting plate 1 (201).
5. The anti-leakage device for steel-plastic composite pipe connectors according to claim 1, characterized in that, The dust removal mechanism includes a mounting plate (301) and an air blowing assembly; The mounting plate (301) is mounted on the first connecting plate (201); The air blowing assembly is mounted on the mounting plate (301) and is used to generate an airflow by squeezing to remove dust from the inside of the sealing groove (208).
6. The anti-leakage device for steel-plastic composite pipe connectors according to claim 5, characterized in that, The air blowing assembly includes an airbag (302), a sliding plate (303), a straight slide rail (304), a connecting rod (305), and a power ring (306); An airbag (302) is located on the top of the mounting plate (301), a sliding plate (303) is located on the top of the airbag (302), a straight slide rail (304) is located on the side of the sliding plate (303), the bottom of the straight slide rail (304) is connected to the top of the connecting plate (201), a linkage rod (305) is rotatably located on the side of the sliding plate (303), a power ring (306) is rotatably located at the end of the linkage rod (305) away from the sliding plate (303), a connecting pipe (307) is provided at the bottom of the airbag (302), and an air inlet (308) is provided at the bottom of the connecting pipe (307).
Citation Information
Patent Citations
Leakage-proof connecting device for drainage pipeline
CN215981329U