Municipal sewage pipeline joint device capable of achieving quick connection

By combining locking and sealing devices, the complexities of sealing and installation/disassembly during the connection of municipal sewage pipe joint devices are solved, achieving rapid connection and efficient sealing, and improving the safety and reliability of the device.

CN224162216UActive Publication Date: 2026-04-24HEBEI QINBO MUNICIPAL ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI QINBO MUNICIPAL ENG CO LTD
Filing Date
2025-06-19
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing municipal sewage pipe joint devices are difficult to seal effectively during connection, and the installation and disassembly process is complex and inefficient.

Method used

It adopts a combination design of locking and sealing devices, including components such as locking ring, locking pin, buffer pad, air bag and sealing ring, and achieves fast locking and sealing through threaded connection and gas exchange.

Benefits of technology

It enables quick connection and disassembly of pipe joints, enhances sealing performance, prevents sewage leakage, and improves the reliability and durability of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of pipeline connection, and provides a municipal sewage pipeline joint device for quick connection, which comprises an upper half pipe and a lower half pipe, the circumferential surface of the upper half pipe is fixedly connected with an upper locking ring, and the circumferential surface of the lower half pipe is fixedly connected with a lower locking ring. A locking device is arranged on the side face of the lower locking ring. According to the utility model, when the upper half pipe and the lower half pipe need to be connected, a pipeline is placed on the lower half pipe, and an operator can hold the handle by hand and rotate the handle to drive the threaded rod to rotate. Due to the fact that the threaded rod and the threaded sleeve are in threaded connection, rotation of the threaded rod can drive the threaded sleeve to move, and then the movable sleeve and the lock column are driven to move. And when the locking column moves to the position of the buffer pad, the locking column continues to conduct extrusion, and therefore locking connection of the upper half pipe and the lower half pipe is achieved. By means of the technical scheme, the technical problem that pipelines cannot be effectively connected and sealed in the prior art is solved.
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Description

Technical Field

[0001] The embodiments of this utility model relate to the field of pipeline connection technology, specifically to a quick-connect municipal sewage pipeline joint device. Background Technology

[0002] Pipe fittings are connecting tools between pipes, serving as detachable connection points between components and pipes. They play an indispensable and crucial role in pipe fittings, and are one of the two main components of hydraulic pipelines.

[0003] According to a public announcement (publication number: CN218992707U), a quick connector for municipal sewage pipelines includes an outer pipe, a connecting sleeve fixedly connected to the top of the outer pipe, a main pipe located above the connecting sleeve, a connecting flange fixedly connected to one end of the main pipe near the connecting sleeve, the connecting flange being inserted into the connecting sleeve, and several trapezoidal compression blocks inside the connecting sleeve. An expansion groove is carved into the connecting sleeve relative to the trapezoidal compression blocks. This quick connector fixes the main pipe to the outer pipe by inserting the connecting flange at the bottom of the main pipe into the connecting sleeve of the outer pipe and using multiple trapezoidal compression blocks to compress and limit the connecting flange. During disassembly and installation, only the compression ring needs to be moved to compress or disengage the T-shaped transmission rod connected to the trapezoidal compression blocks, achieving quick disassembly and assembly. No threads are required, avoiding the influence of solidified foreign matter on the threads, and no other accessories are needed, thus improving pipeline disassembly and assembly efficiency.

[0004] In the aforementioned application, the cooperation between the main pipe and the connecting flange assembly makes it difficult to effectively seal the inside of the pipe during connection, and the installation and disassembly process is relatively complicated and not convenient for quick disassembly. Therefore, we propose a quick-connect municipal sewage pipe joint device. Utility Model Content

[0005] To overcome the above-mentioned defects, embodiments of this utility model provide a quick-connect municipal sewage pipe joint device, which solves the problem of effective connection and sealing of pipes in related technologies.

[0006] According to one aspect, at least one embodiment of the present invention provides a quick-connect municipal sewage pipe joint device, including an upper half pipe and a lower half pipe, wherein an upper locking ring is fixedly connected to the circumferential surface of the upper half pipe, and a lower locking ring is fixedly connected to the circumferential surface of the lower half pipe, and a locking device is provided on the side of the lower locking ring.

[0007] The locking device includes a base, the bottom of which is fixedly connected to the top of the lower locking ring. A connecting block is fixedly connected to the top of the base. A locking rod is hinged to the inner side of the connecting block. A cap is fixedly connected to one end of the locking rod. A threaded rod is rotatably connected to the side of the cap. A handle is fixedly connected to one end of the threaded rod. A threaded sleeve is threadedly connected to the circumferential surface of the threaded rod. A movable sleeve is fixedly connected to the circumferential surface of the threaded sleeve. A locking pin is fixedly connected to the circumferential surface of the movable sleeve. A locking groove is provided on the side of the upper locking ring.

[0008] For example, in at least one embodiment of the present invention, a quick-connect municipal sewage pipe joint device is provided, which further includes: a protective post fixedly connected to the end of the locking post away from the threaded sleeve, and a buffer pad fixedly connected to the top of the upper locking ring, the function of which is to provide buffer protection.

[0009] The circumferential surface of the threaded rod penetrates the side surface of the cap, and the circumferential surface of the threaded sleeve penetrates the circumferential surface of the movable sleeve. Its function is to enable the threaded rod and the threaded sleeve to rotate and move smoothly, thereby driving the locking pin to perform locking or unlocking operations, enhancing the operational flexibility and practicality of the device.

[0010] The side section of the connecting block is concave, and the side of the locking pin is slidably connected to the circumference of the locking rod. There are four locking rods, caps, threaded rods and locking grooves, arranged in pairs. The purpose of these components is to enhance the stability and locking effect of the device, making the connection between the upper and lower pipes more secure and reliable.

[0011] The side of the protective post is located on the displacement trajectory of the side of the buffer pad. There are two locking posts, which are symmetrical to each other along the central axis of the locking rod. This further enhances the locking stability and buffer protection effect of the device, and improves the safety and reliability of the device.

[0012] According to another aspect, at least one embodiment of the present invention also provides a quick-connect municipal sewage pipe joint device, including a sealing device. The sealing device is provided on the side of the upper locking ring. The upper sealing device includes an air bladder. The bottom of the air bladder is fixedly connected to the upper locking ring. An air tube is fixedly connected to the side of the air bladder. A sealing air bladder is fixedly connected to the inner circumferential surface of the upper half pipe. A pressure rod is fixedly connected to the side of the protective column. A sealing sleeve is fixedly connected to the inner circumferential surface of the lower half pipe. Its function is to increase the sealing performance while locking.

[0013] For example, in at least one embodiment of this utility model, a quick-connect municipal sewage pipe joint device is provided, which further includes: a lower sealing ring fixedly connected to the inner circumferential surface of the lower half-pipe, and an upper sealing ring fixedly connected to the inner circumferential surface of the upper half-pipe. The function of this is to further enhance the sealing performance of the pipe joint device, prevent sewage leakage, and improve the reliability and durability of the device.

[0014] The side section of the pressure rod is L-shaped, and the circumferential surface of the pressure rod is located on the displacement trajectory of the side of the airbag. Its function is to accurately compress the airbag and seal the tube.

[0015] The airbag penetrates the interior of the trachea, and the trachea penetrates the interior of the sealed airbag. The circumferential surface of the trachea is fixedly connected to the circumferential surface of the upper half tube and the upper locking ring. Its function is to enable the airbag to exchange gases with the sealed airbag through the trachea.

[0016] The device is equipped with two air tubes and air bladders, which are symmetrical about each other along the central axis of the upper tube. This design further enhances the sealing effect and stability of the device, ensures the sealing performance of the pipe joints, and improves the practicality and reliability of the device.

[0017] The beneficial effects of the embodiments of this utility model are as follows:

[0018] 1. In this utility model, the locking device, through the cooperation of components such as the base, connecting block, and locking rod, enables rapid locking and unlocking of the upper and lower pipe halves, making the installation and disassembly of pipe joints more convenient and quick. Simultaneously, the inclusion of buffer pads and protective posts further enhances the device's buffering protection effect and locking stability, improving its safety and reliability.

[0019] 2. In this utility model, the sealing performance of the pipe joint is enhanced through the cooperation of components such as the air bladder, air tube, and sealing air bladder in the sealing device, preventing sewage leakage and improving the reliability and durability of the device. Specifically, the upper and lower sealing rings further enhance the sealing performance of the pipe joint device, ensuring a good sealing effect. Furthermore, the pressure rod and L-shaped side section allow for precise compression of the air bladder, resulting in a better seal on the pipe. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a three-dimensional side view structural schematic diagram of the lower half of the tube of this utility model;

[0023] Figure 3 This is a three-dimensional cross-sectional structural schematic diagram of the locking device of this utility model;

[0024] Figure 4 This is a three-dimensional side view structural schematic diagram of the upper half of the tube of this utility model;

[0025] Figure 5 This is a three-dimensional cross-sectional structural diagram of the sealing device of this utility model.

[0026] In the diagram: 1. Upper half-pipe; 2. Lower half-pipe; 3. Upper locking ring; 4. Lower locking ring; 5. Locking device; 501. Base; 502. Connecting block; 503. Locking rod; 504. Cap; 505. Threaded rod; 506. Handle; 507. Threaded sleeve; 508. Moving sleeve; 509. Locking post; 510. Locking groove; 6. Protective post; 7. Buffer pad; 8. Sealing device; 801. Airbag; 802. Air pipe; 803. Sealing airbag; 804. Pressure rod; 805. Sealing sleeve; 9. Lower sealing ring; 10. Upper sealing ring. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it.

[0028] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] like Figures 1-5 As shown, it illustrates a quick-connect municipal sewage pipe joint device according to an embodiment of the present invention, including an upper pipe 1 and a lower pipe 2. An upper locking ring 3 is fixedly connected to the circumferential surface of the upper pipe 1, and a lower locking ring 4 is fixedly connected to the circumferential surface of the lower pipe 2. A locking device 5 is provided on the side of the lower locking ring 4.

[0034] The locking device 5 includes a base 501, the bottom of which is fixedly connected to the top of the lower locking ring 4. A connecting block 502 is fixedly connected to the top of the base 501. A locking rod 503 is hinged to the inner side of the connecting block 502. A cap 504 is fixedly connected to one end of the locking rod 503. A threaded rod 505 is rotatably connected to the side of the cap 504. A handle 506 is fixedly connected to one end of the threaded rod 505. A threaded sleeve 507 is threadedly connected to the circumferential surface of the threaded rod 505. A movable sleeve 508 is fixedly connected to the circumferential surface of the threaded sleeve 507. A locking pin 509 is fixedly connected to the circumferential surface of the movable sleeve 508. A locking groove 510 is provided on the side of the upper locking ring 3.

[0035] In some examples, the following are also included: a protective post 6 is fixedly connected to the end of the locking post 509 away from the threaded sleeve 507, and a buffer pad 7 is fixedly connected to the top of the upper locking ring 3, which serves to provide buffer protection.

[0036] The circumferential surface of the threaded rod 505 penetrates the side of the cap 504, and the circumferential surface of the threaded sleeve 507 penetrates the circumferential surface of the movable sleeve 508. Their function is to enable the threaded rod 505 and the threaded sleeve 507 to rotate and move smoothly, thereby driving the locking pin 509 to perform locking or unlocking operations, enhancing the operational flexibility and practicality of the device.

[0037] The side section of the connecting block 502 is set to be concave. The side of the locking pin 509 is connected to the circumference of the locking rod 503 through and slidingly connected. There are four locking rods 503, caps 504, threaded rods 505 and locking grooves 510, which are arranged in pairs. Their function is to enhance the stability and locking effect of the device, making the connection between the upper half tube 1 and the lower half tube 2 more firm and reliable.

[0038] The side of the protective post 6 is located on the displacement trajectory of the side of the buffer pad 7. There are two locking posts 509, which are symmetrical to each other along the central axis of the locking rod 503. The latter further enhances the buffer protection effect and locking stability of the device, and improves the safety and reliability of the device.

[0039] For example, such as Figures 1-5 As shown, when connecting the upper pipe 1 and the lower pipe 2, the pipe is placed on the lower pipe 2. The operator can hold the handle 506 and rotate it to rotate the threaded rod 505. Since the threaded rod 505 and the threaded sleeve 507 are connected by a thread, the rotation of the threaded rod 505 will drive the threaded sleeve 507 to move, which in turn will drive the moving sleeve 508 and the locking pin 509 to move. When the locking pin 509 moves to the position of the buffer pad 7, the locking pin 509 continues to press, thereby achieving a locking connection between the upper pipe 1 and the lower pipe 2.

[0040] like Figures 1-5 As shown, this invention illustrates a quick-connect municipal sewage pipe joint device in another embodiment of the present invention. It is largely the same as the technical solution described above, so only the differences are emphasized. A sealing device 8 is provided on the side of the upper locking ring 3. The upper sealing device 8 includes an air bladder 801, the bottom of which is fixedly connected to the upper locking ring 3. An air pipe 802 is fixedly connected to the side of the air bladder 801. A sealing air bladder 803 is fixedly connected to the inner circumferential surface of the upper pipe 1. A pressure rod 804 is fixedly connected to the side of the protective column 6. A sealing sleeve 805 is fixedly connected to the inner circumferential surface of the lower pipe 2. Its function is to increase sealing performance while locking.

[0041] In some examples, a lower sealing ring 9 is fixedly connected to the inner circumferential surface of the lower half-pipe 2, and an upper sealing ring 10 is fixedly connected to the inner circumferential surface of the upper half-pipe 1. This serves to further enhance the sealing performance of the pipe joint device, prevent sewage leakage, and improve the reliability and durability of the device.

[0042] The side section of the pressure rod 804 is set to L-shape, and the circumferential surface of the pressure rod 804 is located on the displacement trajectory of the side of the airbag 801. Its function is to accurately compress the airbag 801 so that the tube is sealed.

[0043] The airbag 801 penetrates the interior of the trachea 802, and the trachea 802 penetrates the interior of the sealing airbag 803. The circumferential surface of the trachea 802 is fixedly connected to the circumferential surface of the upper half tube 1 and the upper locking ring 3. Its function is to enable the airbag 801 to exchange gases with the sealing airbag 803 through the trachea 802.

[0044] There are two trachea 802 and airbag 801. The trachea 802 and airbag 801 are symmetrical to each other along the central axis of the upper pipe 1. Their function is to further enhance the sealing effect and stability of the device, ensure the sealing performance of the pipe joint, and improve the practicality and reliability of the device.

[0045] For example, such as Figures 1-5 As shown, the working principle is as follows: when the operator rotates the handle 506 to perform the locking operation, the locking pin 509, driven by the threaded rod 505, gradually approaches the buffer pad 7, completing the locking connection between the upper pipe 1 and the lower pipe 2. During this process, as the locking pin 509 moves, the protective pin 6 and the pressure rod 804 also move accordingly. When the pressure rod 804 moves to the side of the airbag 801, because the side section of the pressure rod 804 is set in an L-shape, the pressure rod 804 will accurately squeeze the airbag 801, causing the gas inside the airbag 801 to flow into the sealing airbag 803 through the air pipe 802, causing the sealing airbag 803 to expand and tightly fit against the inner circumferential surface of the upper pipe 1, thereby achieving the sealing of the pipe joint. At the same time, the sealing sleeve 805 on the inner circumferential surface of the lower pipe 2, the upper sealing ring 10 on the inner circumferential surface of the upper pipe 1, and the lower sealing ring 9 on the inner circumferential surface of the lower pipe 2 work together to further enhance the sealing performance of the pipe joint device and effectively prevent sewage leakage.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A quick-connect municipal sewage pipe fitting device, characterized in that, It includes an upper half-pipe (1) and a lower half-pipe (2). An upper locking ring (3) is fixedly connected to the circumferential surface of the upper half-pipe (1), and a lower locking ring (4) is fixedly connected to the circumferential surface of the lower half-pipe (2). A locking device (5) is provided on the side of the lower locking ring (4). The locking device (5) includes a base (501), the bottom of which is fixedly connected to the top of the lower locking ring (4), a connecting block (502) is fixedly connected to the top of the base (501), a locking rod (503) is hinged to the inner side of the connecting block (502), a cap (504) is fixedly connected to one end of the locking rod (503), a threaded rod (505) is rotatably connected to the side of the cap (504), a handle (506) is fixedly connected to one end of the threaded rod (505), a threaded sleeve (507) is threadedly connected to the circumferential surface of the threaded rod (505), a movable sleeve (508) is fixedly connected to the circumferential surface of the threaded sleeve (507), a locking pin (509) is fixedly connected to the circumferential surface of the movable sleeve (508), and a locking groove (510) is provided on the side of the upper locking ring (3).

2. The quick-connect municipal sewage pipe joint device according to claim 1, characterized in that, The locking pin (509) is fixedly connected to a protective pin (6) at the end away from the threaded sleeve (507), and a buffer pad (7) is fixedly connected to the top of the upper locking ring (3).

3. The quick-connect municipal sewage pipe joint device according to claim 2, characterized in that, The circumferential surface of the threaded rod (505) penetrates the side surface of the cap (504), and the circumferential surface of the threaded sleeve (507) penetrates the circumferential surface of the movable sleeve (508).

4. The quick-connect municipal sewage pipe joint device according to claim 3, characterized in that, The side section of the connecting block (502) is concave. The side of the locking pin (509) is connected to the circumferential surface of the locking rod (503) and is slidably connected. The number of the locking rod (503), cap (504), threaded rod (505) and locking groove (510) is four, in pairs.

5. A quick-connect municipal sewage pipe joint device according to claim 4, characterized in that, The side of the protective post (6) is located on the displacement trajectory of the side of the buffer pad (7). There are two locking posts (509), which are symmetrical to each other along the central axis of the locking rod (503).

6. A quick-connect municipal sewage pipe joint device according to claim 5, characterized in that, The upper locking ring (3) is provided with a sealing device (8) on its side. The sealing device (8) includes an airbag (801). The bottom of the airbag (801) is fixedly connected to the upper locking ring (3). An air tube (802) is fixedly connected to the side of the airbag (801). A sealing airbag (803) is fixedly connected to the inner circumferential surface of the upper half-pipe (1). A pressure rod (804) is fixedly connected to the side of the protective column (6). A sealing sleeve (805) is fixedly connected to the inner circumferential surface of the lower half-pipe (2).

7. A quick-connect municipal sewage pipe joint device according to claim 6, characterized in that, The lower half-pipe (2) is fixedly connected to the inner circumferential surface with a lower sealing ring (9), and the upper half-pipe (1) is fixedly connected to the inner circumferential surface with an upper sealing ring (10).

8. A quick-connect municipal sewage pipe joint device according to claim 7, characterized in that, The side section of the pressure rod (804) is set to L-shape, and the circumferential surface of the pressure rod (804) is located on the displacement trajectory of the side of the airbag (801).

9. A quick-connect municipal sewage pipe joint device according to claim 8, characterized in that, The airbag (801) penetrates the interior of the trachea (802), the trachea (802) penetrates the interior of the sealing airbag (803), and the circumferential surface of the trachea (802) is fixedly connected to the circumferential surface of the upper half tube (1) and the upper locking ring (3).

10. A quick-connect municipal sewage pipe joint device according to claim 9, characterized in that, There are two tracheas (802) and air bags (801), and the tracheas (802) and air bags (801) are symmetrical to each other along the central axis of the upper tube (1).

Citation Information

Patent Citations

  • Quick connector suitable for municipal sewage pipeline

    CN218992707U