Socket water stop self-locking type connecting device

Abstract

The utility model relates to a socket water stop self-locking type connecting device which comprises a lower socket pipe, a rubber gasket, a water stop rubber ring, an upper socket pipe and a self-locking device. The upper spigot and socket pipe and the lower spigot and socket pipe are quickly connected through spigot and socket and are locked by a self-locking device; according to the self-locking device, a wedge-shaped sliding block which is sloped in one direction passes through a lower socket pipe with a guide groove and a water stop rubber ring in one direction under compression deformation of a spring until the wedge-shaped sliding block completely enters a clamping groove of the lower socket pipe after the upper socket pipe abuts against a rubber gasket, and the wedge-shaped sliding block is clamped and self-locked under the action of the rubber gasket and the spring. According to the utility model, the problem of automatic locking and falling prevention of the pipeline is solved, the advantage that the socket connection is flexible connection is reserved, the pipeline can be properly rotated, retracted and designed to allow deformation after being installed, and the use of the device widens the design and use range of the socket interface.

Description

Technical Field

[0001] The utility model relates to the field of drainage engineering, in particular to a socket-and-spigot water-stopping self-locking connection device. Background Art

[0002] As people's pursuit of a better life continues to increase, the content involved in water conservancy and municipal engineering continues to increase. As the comprehensiveness and complexity of the projects continue to increase, the demand for quick water-stop and anti-detachment connections for pipes and quick water-stop and anti-detachment connections under restrictive conditions (such as underwater restrictions, space restrictions, etc.) is also increasing.

[0003] The connection methods of large diameter pipes in water supply and drainage projects generally include welding connection, hot melt connection, flange connection, socket connection, etc. Among them, the general socket connection is to squeeze the rubber ring at the socket to stop water and provide friction to prevent the pipe from being disconnected. However, sometimes the friction provided by the rubber ring squeezed at the socket cannot meet the problem of preventing the pipe from being disconnected. Summary of the invention

[0004] The utility model aims to overcome the defects of the prior art and provide a socket-and-spigot water-stop self-locking connection device to solve the connection problems of rapid installation of water supply and drainage pipes and to have water-stopping and anti-falling properties, especially to smoothly complete rapid water-stopping and anti-falling connections under restricted conditions.

[0005] In order to solve the above technical problems, the utility model is achieved as follows:

[0006] A socket-and-spigot waterproof self-locking connection device, characterized in that it comprises a lower socket-and-spigot pipe, a rubber gasket, a waterproof rubber ring, an upper socket-and-spigot pipe and a self-locking device;

[0007] The upper connecting end surface of the lower bell-and-spigot pipe is provided with a rubber gasket, the connecting end of the lower bell-and-spigot pipe is provided with a first groove and a second groove, and a water-stop rubber ring is provided in the second groove;

[0008] A reserved hole corresponding to the first groove is provided on the connecting end of the upper bell pipe;

[0009] The self-locking device comprises a wedge-shaped slider, a spring, a threaded base and a shell, wherein the shell is arranged on the outer ring of the reserved hole of the upper bell pipe, the wedge-shaped slider is connected with the spring and passes through the reserved hole and is arranged in the first groove, and the threaded base is installed on the upper end of the shell and abuts against the spring;

[0010] The upper bell-and-spigot pipe and the lower bell-and-spigot pipe are quickly connected through the bell-and-spigot connection and locked by the self-locking device; the self-locking device is a wedge-shaped slider with a one-way slope that passes through the lower bell-and-spigot pipe and the water-stop rubber ring with an open guide groove in one direction under the compression deformation of the spring, until the upper bell-and-spigot pipe presses against the rubber gasket and the wedge-shaped slider completely enters the clamping groove of the lower bell-and-spigot pipe, and is clamped and self-locked under the action of the rubber gasket and the spring.

[0011] The described socket-and-spigot water-stopping self-locking connection device is characterized in that the outer shell is connected to the upper socket-and-spigot pipe by welding or threading.

[0012] The socket-and-spigot waterproof self-locking connection device is characterized in that the threaded base is detachable, and the wedge-shaped slider and the spring in the shell can be taken out by disassembling the threaded base.

[0013] The socket-and-spigot waterproof self-locking connection device is characterized in that the width of the first groove is greater than the width of the wedge-shaped sliding block.

[0014] The described socket-and-spigot waterproof self-locking connection device is characterized in that the height of the waterproof rubber ring is higher than the second groove of the lower socket pipe, and the number of waterproof rubber rings is set to one or more according to the internal and external water pressure of the pipeline design.

[0015] The described socket-and-spigot water-stopping self-locking connection device is characterized in that the upper socket-and-spigot pipe and the lower socket-and-spigot pipe are made of steel or plastic.

[0016] The described socket-and-spigot water-stop self-locking connection device is characterized in that the outer ends of the upper and lower bell-and-spigot pipes are welded or hot-melt connected to the pipeline, or are pre-buried in a concrete pipe or reinforced concrete pipe as a socket-and-spigot connection for on-site installation.

[0017] The beneficial effect of the present utility model is as follows: It can be seen from the above technical scheme that the present application provides a socket-and-spigot water-stop self-locking connection device, which creatively solves the problem of automatic locking and anti-falling of pipes compared to general socket-and-spigot connections, and retains the advantage of the socket-and-spigot connection as a flexible connection. After installation, the pipe can be appropriately rotated, telescoped and designed to allow deformation. The use of this device broadens the design and use scope of the socket-and-spigot interface.

[0018] The present application solves the problem of rapid installation of water supply and drainage pipes and has water-stopping and anti-falling connection by means of a lower bell-and-spigot pipe, a rubber gasket, a water-stopping rubber ring, an upper bell-and-spigot pipe and a self-locking device;

[0019] Socket connection can solve the pipe connection problem of welding connection, hot melt connection and flange connection in a narrow space without an operating surface;

[0020] When the underwater pipelines are butt-jointed, they are quickly connected through the socket and the self-locking device automatically locks. It is not only quick to install but also has small requirements on the installation site. The locking device is not easy to fall off under the influence of water scouring and siltation squeezing.

[0021] Compared with the general socket connection, the device creatively solves the problem of automatic locking and anti-falling of the pipe, and retains the advantage of flexible connection of the socket connection. The pipe can be properly rotated, stretched and designed to be deformed after installation. The use of this device has broadened the design and use scope of the socket interface.

[0022] The device is generally suitable for the socket joints of steel pipes, plastic pipes, concrete pipes and reinforced concrete pipes.

[0023] This construction method and facility not only achieved the expected design goals, but also received high recognition from all parties involved in the construction. The promotion and application of the technical ideas of this invention and the comprehensive benefits it generates are the embodiment of the company's value in improving its core market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples:

[0025] Figure 1 This is a schematic diagram of the structure of this application. DETAILED DESCRIPTION

[0026] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the embodiments of the present application are within the scope of protection requested by the present application.

[0027] like Figure 1 As shown: a socket-and-spigot waterproof self-locking connection device, which includes a lower socket-and-spigot pipe 1, a rubber gasket 2, a waterproof rubber ring 3, an upper socket-and-spigot pipe 4 and a self-locking device 5;

[0028] The upper connecting end surface of the lower bell-and-spigot pipe is provided with a rubber gasket, and the connecting end of the lower bell-and-spigot pipe is provided with a first groove 6 and a second groove 7, and a water-stop rubber ring is provided in the second groove;

[0029] A reserved hole corresponding to the first groove is provided on the connecting end of the upper bell pipe;

[0030] The self-locking device 5 comprises a wedge-shaped slider 51, a spring 52, a threaded base 53 and a shell 54. The shell is arranged on the outer ring of the reserved hole of the upper bell pipe. The wedge-shaped slider is connected with the spring and passes through the reserved hole and is arranged in the first groove. The threaded base is installed on the upper end of the shell and abuts against the spring.

[0031] The upper bell-and-spigot pipe and the lower bell-and-spigot pipe are quickly connected through the bell-and-spigot connection and locked by the self-locking device; the self-locking device is a wedge-shaped slider with a one-way slope that passes through the lower bell-and-spigot pipe and the water-stop rubber ring with an open guide groove in one direction under the compression deformation of the spring, until the upper bell-and-spigot pipe presses against the rubber gasket and the wedge-shaped slider completely enters the clamping groove of the lower bell-and-spigot pipe, and is clamped and self-locked under the action of the rubber gasket and the spring.

[0032] The self-locking device is composed of a wedge-shaped slider, a spring, a threaded base and a shell. The shell is connected to the upper bell pipe by welding or threading. The wedge-shaped slider and the spring are connected through the reserved holes in the upper bell pipe. The threaded base can be disassembled to remove the wedge-shaped slider and the spring in the shell. The number of self-locking devices is set according to design requirements;

[0033] In order to install quickly and conveniently, the self-locking device is usually fixed on the upper bell and spigot in advance, and the reserved grooves of the lower bell and spigot are set continuously to ensure that the pipeline can be properly rotated after installation;

[0034] The width of the reserved groove of the lower bell pipe is greater than the width of the wedge-shaped slider. The margin can be properly controlled according to the designed pipeline expansion and contraction amount in combination with the thickness of the rubber gasket, and the self-locking device in combination with the thickness of the rubber gasket can constrain the expansion and contraction amount.

[0035] The socket-and-spigot water-stop self-locking connection device is connected quickly by the socket, and the self-locking device automatically locks. The socket squeezes the rubber ring to stop water and provide a certain friction force. The wedge-shaped slider of the self-locking device is automatically locked in one direction under the action of the spring to prevent the pipe from falling off after installation;

[0036] The self-locking device is a one-way sloped wedge-shaped slider that passes through the lower bell pipe and the water-stop rubber ring with an open guide groove in one direction under the compression deformation of the spring, until the upper bell pipe presses against the rubber gasket and the wedge-shaped slider completely enters the lower bell pipe groove, and the groove is clamped and self-locked under the action of the rubber gasket and the spring.

[0037] The water-stop rubber ring needs to be higher than the groove of the lower bell pipe, and the height of the higher height is generally determined by the design water pressure test. The number of water-stop rubber rings can be set one or more according to the internal and external water pressure and importance of the pipeline design.

[0038] The reserved gap between the upper and lower bell-and-spigot pipes allows for adjustment of the designed allowable deformation during pipe installation.

[0039] When the upper and lower bell-and-spigot pipes are made of steel or plastic, they need to be finely processed and manufactured by the factory according to the design drawings.

[0040] The upper and lower bell-and-spigot pipes can be directly connected to the pipeline by welding or hot-melt connection, or they can be pre-buried in concrete pipes or reinforced concrete pipes as bell-and-spigot connections for on-site installation, so as to facilitate rapid on-site bell-and-spigot installation of the pipeline.

[0041] Socket connection can solve the problem of pipe connection in a small space where there is no operating surface for welding connection, hot melt connection and flange connection.

[0042] When the underwater pipelines are butt-jointed, they are quickly connected through the socket and the self-locking device automatically locks. It is not only quick to install but also has small requirements on the installation site. The locking device is not easy to fall off under the influence of water scouring and siltation squeezing.

[0043] Compared with the general socket connection, the problem of automatic locking and anti-falling of the pipe is creatively solved, and the advantage of the socket connection as a flexible connection is retained. After the pipe is installed, it can be properly rotated, stretched and designed to be deformed. The use of this device broadens the design and use scope of the socket interface.

[0044] Overall construction process: connect the upper and lower bell-and-spigot pipes with the target pipeline → install the rubber gasket of the lower bell-and-spigot pipe → install the water-stop rubber ring of the lower bell-and-spigot pipe → connect the self-locking device with the upper bell-and-spigot pipe → construct the bell-and-spigot joint → make sure the self-locking device is locked → adjust the pipeline installation axis position appropriately → installation is completed.

[0045] The above are only embodiments provided for the present application and are not intended to limit the present application. Although the present application is described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A socket-and-spigot waterproof self-locking connection device, characterized in that: It includes a lower bell pipe, a rubber gasket, a water-stop rubber ring, an upper bell pipe and a self-locking device; The upper connecting end surface of the lower bell-and-spigot pipe is provided with a rubber gasket, the connecting end of the lower bell-and-spigot pipe is provided with a first groove and a second groove, and a water-stop rubber ring is provided in the second groove; A reserved hole corresponding to the first groove is provided on the connecting end of the upper bell pipe; The self-locking device comprises a wedge-shaped slider, a spring, a threaded base and a shell, wherein the shell is arranged on the outer ring of the reserved hole of the upper bell pipe, the wedge-shaped slider is connected with the spring and passes through the reserved hole and is arranged in the first groove, and the threaded base is installed on the upper end of the shell and abuts against the spring; The upper bell-and-spigot pipe and the lower bell-and-spigot pipe are quickly connected through the bell-and-spigot connection and locked by the self-locking device; the self-locking device is a wedge-shaped slider with a one-way slope that passes through the lower bell-and-spigot pipe and the water-stop rubber ring with an open guide groove in one direction under the compression deformation of the spring, until the upper bell-and-spigot pipe presses against the rubber gasket and the wedge-shaped slider completely enters the clamping groove of the lower bell-and-spigot pipe, and is clamped and self-locked under the action of the rubber gasket and the spring.

2. A socket-and-spigot waterproof self-locking connection device according to claim 1, characterized in that: The outer shell is connected to the upper socket pipe by welding or threading.

3. A socket-and-spigot waterproof self-locking connection device according to claim 1, characterized in that: The threaded base is detachable, and the wedge-shaped slider and the spring in the shell can be taken out by disassembling the threaded base.

4. A socket-and-spigot waterproof self-locking connection device according to claim 1, characterized in that: The width of the first groove is greater than the width of the wedge-shaped sliding block.

5. The socket-and-spigot waterproof self-locking connection device according to claim 1, characterized in that: The height of the water-stop rubber ring is higher than the second groove of the lower bell pipe, and the number of the water-stop rubber rings is one or more according to the internal and external water pressure of the pipeline design.

6. A socket-and-spigot waterproof self-locking connection device according to claim 1, characterized in that: The upper bell pipe and the lower bell pipe are made of steel or plastic.

7. The socket-and-spigot waterproof self-locking connection device according to claim 1, characterized in that: The outer ends of the upper and lower bell-and-spigot pipes are connected to the pipeline by welding or hot-melt connection, or are pre-buried in a concrete pipe or a reinforced concrete pipe as a bell-and-spigot connection for on-site installation.

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