Concealed trap of drainage pipeline

Abstract

The concealed trap of the drainage pipeline comprises an access port assembly, the access port assembly is installed on a discharge port assembly, and a water inlet partition plate and a water outlet partition plate are arranged in the discharge port assembly; one side of the bottom end of the access port assembly is provided with an insertion cavity clamped on an inner wall socket of the discharge port assembly, and the outer wall of one side of the insertion cavity abuts against the top end of the water inlet partition plate; and the bottom end of the insertion cavity is higher than the upper end surface of the water outlet partition plate. According to another implementation mode, a water outlet partition plate is arranged in the discharge port assembly; the bottom end of the access port assembly is provided with an insertion cavity on one side of the access port, the insertion cavity is arranged on one side of the water outlet partition plate close to the access port and communicated with the access port, and the lower end face is lower than the upper end face of the water outlet partition plate. The water seal function is guaranteed while the trap is detached in a split mode, and the interior of the trap can be conveniently observed and overhauled. Concealed installation of the trap is achieved, and the inspection opening extends out to facilitate maintenance.

Description

Technical Field

[0001] The invention relates to the field of water traps, and in particular to a concealed water trap for a drainage pipe. Background Art

[0002] According to the requirements of the specification, the drainage pipe of the appliance needs to be isolated by a water trap to prevent the odor in the pipe from overflowing. At present, there are many styles of water traps in the wash basin drainage pipe of the prior art, including S-type, P-type water traps, water traps formed by bending metal pipes, bottle-shaped water traps, etc. The main parts of these water traps are installed directly below the wash basin, the water inlet is connected to the wash basin drain, and the water outlet is connected to the reserved drainage pipe through a corrugated hose, or connected to the pre-buried drainage pipe on the wall, or connected to the reserved drainage pipe on the ground. The main body of the water trap is generally exposed to the outside, while the wash basin with a cabinet is hidden in the cabinet. The water trap is exposed and not beautiful. It occupies the storage space of the cabinet and reduces the storage capacity. In the prior art, the water trap is generally integrally formed and cannot be disassembled. When it is necessary to check or clean the inside of the water trap, it is very inconvenient and brings difficulties to maintenance.

[0003] Chinese Patent Publication Number: CN207553230U, Publication Date: June 29, 2018, discloses a Chinese patent entitled "Anti-siphon and Anti-splash Water Trap with Large Water Seal Ratio", which includes a water trap inlet pipe, a water trap outlet pipe, and a water seal box. An upward water seal box water inlet is opened at the bottom of one side of the water seal box, and the water seal box water inlet is connected to the upward water trap inlet pipe. A downward or horizontal water seal box water outlet is opened at the top of the other side of the water seal box, and the water seal box water inlet is connected to the downward or horizontal water trap outlet pipe. A lower guide baffle is provided at the upper edge of the water seal box inlet, and an upper guide baffle is provided at the lower edge of the water seal box outlet. The water trap is integrally formed, cannot be disassembled, and is inconvenient for maintenance. It cannot be concealed, which makes the water trap exposed and unsightly, and reduces the storage capacity. Summary of the invention

[0004] The present invention provides a concealed water trap for a drainage pipe. By providing an access port assembly with a plug-in cavity, the water trap can be split and detached while ensuring a water sealing function, thereby facilitating observation and maintenance of the interior of the water trap.

[0005] A further object of the present invention is to achieve concealed installation of the water trap with an inspection port extending out for easy maintenance, so as to achieve a compact and simplified structure of the water trap and facilitate concealed burial in a wall groove.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a concealed water trap in a drainage pipe, comprising an inlet assembly, the inlet assembly is mounted on a discharge assembly, and a water inlet baffle and a water outlet baffle are arranged in the discharge assembly; a plug-in cavity is arranged on one side of the bottom end of the inlet assembly, which is clamped on the socket of the inner wall of the discharge assembly, and the outer wall of one side of the plug-in cavity abuts against the top of the water inlet baffle; the plug-in cavity is arranged above the water outlet baffle, and the bottom end is higher than the upper end surface of the water outlet baffle. The split and detachable water trap is achieved while ensuring the water sealing function, which facilitates the observation and maintenance of the inside of the water trap. The concealed installation of the water trap is achieved, and the inspection port is extended for easy maintenance. The split and detachable design greatly improves the maintenance convenience of the water trap, reduces the damage to the surrounding environment during maintenance, and also reduces the maintenance cost. The concealed design makes the drainage system more beautiful, does not take up extra space, and improves the overall user experience.

[0007] Preferably, both the outlet assembly and the inlet assembly are flat cavity structures, the diameter of the plug-in cavity is different from the diameter above the inlet assembly to form a step portion, and the inlet assembly is snapped onto the socket on the inner wall at the top of the outlet assembly. The step portion is snapped onto the socket, and the plug-in cavity extends out of the inlet assembly. The inlet is provided at the top of one side of the inlet assembly, and the plug-in cavity is provided at the bottom of the other side. The flat cavity structure design enables the trap to better adapt to narrow spaces during installation, reducing the requirements for installation space. The snap-on design of the step portion and the socket improves the stability and sealing of the connection, effectively preventing water leakage, while facilitating quick installation and disassembly, further improving maintenance efficiency.

[0008] Preferably, the socket is a stepped seat formed by different diameters at the top of the discharge outlet assembly, which is arranged at the top of the discharge outlet assembly and circumferentially arranged along the inner wall of the discharge outlet assembly. The stepped seat-type socket design can provide a more uniform force distribution and enhance the strength and stability of the connection part. The circumferentially arranged socket simplifies the installation process and reduces the difficulty of installation.

[0009] Preferably, the water inlet baffle and the water outlet baffle are arranged vertically, dividing the inner cavity of the discharge outlet assembly into S-shaped channels connected end to end, which are respectively the water inlet channel, the middle channel and the water outlet channel. The upper end surface of the water inlet baffle is higher than the upper end surface of the water outlet baffle. The water inlet baffle is arranged in the middle part of the height direction of the discharge outlet assembly, and does not contact the top and bottom ends of the discharge outlet assembly. The water outlet baffle is connected to the bottom end of the discharge outlet assembly. The S-shaped channel design can effectively increase the flow path of the water flow, slow down the water flow speed, and reduce the impact of the water flow, thereby reducing noise and improving the quietness of the drainage system. At the same time, this design can better maintain the water seal, prevent odors and pests from entering the room through the drainage pipe, and improve the comfort and sanitary conditions of the living environment.

[0010] Preferably, the lower end surface of the water inlet baffle is lower than the upper end surface of the water outlet baffle, a discharge port with a parallel connection axis is provided below the water outlet channel, and an access port is provided above the water inlet channel, and the access port axis is perpendicular to the water inlet channel. The discharge port is provided below the water outlet baffle. This structural design allows the water flow to transition more smoothly when entering the water trap, reduces water splashing and bubble generation, and further reduces drainage noise. At the same time, the vertically arranged access port and discharge port can better meet the connection requirements of the pipeline, improve the sealing and reliability of the connection, and ensure the normal operation of the drainage system.

[0011] Preferably, the bottom ends of the water inlet channel and the middle channel are connected to the inspection port, the inspection port is axially parallel to the access port, and the access port is axially perpendicular to the discharge port. The setting of the inspection port provides great convenience for the daily maintenance and repair of the water trap, and can quickly locate and clean blockages, reducing maintenance time and costs. The parallel and vertical axial design makes the layout of the inspection port, access port, and discharge port more reasonable, facilitates operation and installation, and later maintenance, and improves the overall user experience.

[0012] Preferably, the lower end surface of the water inlet baffle is located within the projection plane of the inspection port along its axis, and the ports of the access port and the inspection port are located on the same vertical line. This layout design enables the inspection port to more intuitively observe the water flow below the water inlet baffle, making it easier to find and deal with problems in a timely manner. At the same time, the ports of the access port and the inspection port are located on the same vertical line, making it easier to operate the tile cutting hole during construction.

[0013] A concealed trap for a drainage pipe comprises an inlet assembly, which is mounted on a socket of a discharge outlet assembly, wherein a water outlet baffle is arranged inside the discharge outlet assembly; a plug-in cavity is arranged at one side of the inlet at the bottom end of the inlet assembly, wherein the lower end surface of the plug-in cavity is lower than the upper end surface of the water outlet baffle.

[0014] Preferably, the axis of the access port is perpendicular to the axis of the plug-in cavity, and the plug-in cavity and the water outlet baffle divide the inner cavity of the discharge port assembly into an inlet channel, an intermediate channel and a water outlet channel connected end to end.

[0015] Preferably, the outlet is connected to a discharge port with parallel axes below the outlet channel, and the bottom ends of the inlet and outlet channels are connected to an inspection port, and the axis of the inspection port is parallel to the axis of the access port. The discharge port with parallel axes can ensure smooth discharge of water, reduce drainage resistance, and improve drainage efficiency.

[0016] The beneficial effects of the present invention are as follows: the present invention discloses a concealed water trap for drainage pipes. By providing an access port assembly with a plug-in cavity, the water trap can be split and detached while ensuring the water seal function, which facilitates observation and maintenance of the inside of the water trap. The water trap can be concealed and the inspection port is extended for easy maintenance, and the structure of the water trap is small, thin and simplified, which is convenient for concealed grooving in the wall. The water seal water storage part is tightly connected as a whole to avoid water leakage. The water storage part of the water trap is designed as a whole to avoid connection and can achieve molding processing. It only needs to be connected through a corrugated pipe, and the exposed inspection port on the wall is convenient for maintenance. After installation, it is not only beautiful and neat, practical, but also reduces the space occupied by the storage cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an overall structural diagram of Example 1 of the present invention.

[0018] Figure 2 This is an exploded view of Example 1 of the present invention.

[0019] Figure 3 It is a schematic longitudinal section diagram of Example 1 of the present invention.

[0020] Figure 4 This is an overall structural diagram of Example 2 of the present invention.

[0021] Figure 5 This is an exploded view of Example 2 of the present invention.

[0022] Figure 6 It is a schematic longitudinal section diagram of Example 2 of the present invention.

[0023] Figure markings: 1: access port assembly; 1.1: access port; 1.2: plug-in cavity; 1.3: step portion; 2: discharge port assembly; 2.1: water inlet baffle; 2.2: water inlet channel; 2.3: water outlet baffle; 2.4: intermediate channel; 2.5: water outlet channel; 2.6: discharge port; 2.7: socket; 3: inspection port; 3.1: inspection port body, 3.2: cleaning port cover, 3.3: inspection port sealing ring; 3.4: inspection port decorative cover. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] The concealed trap of the drainage pipe is mainly composed of an inlet component 1 and an outlet component 2. The inlet component 1 is installed on the outlet component 2, and the two work closely together to realize the various functions of the trap. Both the outlet component 2 and the inlet component 1 adopt a flat cavity structure. This design shows unique advantages in the actual installation process. It enables the trap to better adapt to narrow spaces, especially in some places with high space requirements, such as bathrooms and kitchens. The flat shape can reduce the occupation of installation space and make the layout of the drainage system more reasonable. The flat cavity structure is also convenient for concealed burial in the wall groove, which meets the needs of modern buildings for pursuing beauty and maximizing space utilization.

[0026] Example 1. like Figure 2 and Figure 3 As shown, a plug-in cavity 1.2 is provided on one side of the bottom end of the inlet assembly 1. This plug-in cavity 1.2 plays a key role in the entire trap structure. It is not only the core component for realizing the split and detachable water trap, but also plays an important role in ensuring the water seal function. One side outer wall of the plug-in cavity 1.2 abuts against the top of the water inlet baffle 2.1. The plug-in cavity 1.2 is arranged above the water outlet baffle 2.3, and its bottom end is higher than the upper end surface of the water outlet baffle 2.3. The plug-in cavity 1.2 is also designed as a flat cavity. One side close to the inlet 1.1 is a plane for abutting against the water inlet baffle 2.1, and the other side is an arc surface. The top end is placed on the socket 2.7 of the outlet assembly 2. This layout design ensures that when the trap is working, water can form an effective water seal between the inlet assembly 1 and the outlet assembly 2 to prevent odor and pests from entering the room through the drainage pipe. At the same time, since the inlet assembly 1 and the outlet assembly 2 are detachably connected, this provides great convenience for the observation and maintenance of the inside of the trap. When the inside of the trap needs to be inspected or repaired, the inlet assembly 1 only needs to be removed from the outlet assembly 2, and the problems inside the trap can be directly observed and handled without large-scale disassembly of the entire drainage system, which greatly reduces the damage to the surrounding environment during maintenance and reduces maintenance costs.

[0027] like Figure 3As shown, the interior of the discharge outlet assembly 2 is provided with an inlet baffle 2.1 and an outlet baffle 2.3, and these two baffles play a key role in guiding and controlling the water flow. The inlet baffle 2.1 and the outlet baffle 2.3 are arranged vertically, and the inner cavity of the discharge outlet assembly 2 is cleverly divided into an S-shaped channel connected end to end, which is the inlet channel 2.2, the middle channel 2.4 and the outlet channel 2.5. This S-shaped channel design has multiple advantages. On the one hand, it effectively increases the flow path of the water flow, slows down the flow rate of the water flow in the water trap, reduces the impact of the water flow on the pipe wall, and thus significantly reduces the noise generated during drainage, and improves the quietness of the drainage system. On the other hand, the longer water flow path helps to better maintain the water seal, further enhances the ability to prevent odors and pests from entering the room, and improves the comfort and sanitary conditions of the living environment.

[0028] like Figure 2 As shown, the diameter of the plug-in cavity 1.2 is different from the diameter above the inlet assembly 1, thereby forming a step portion 1.3. The inlet assembly 1 is snap-fitted to the socket 2.7 on the inner wall of the top end of the outlet assembly 2 through the step portion 1.3. This design greatly improves the stability and sealing of the connection. The step portion 1.3 fits tightly with the socket 2.7, which can effectively prevent water leakage. At the same time, this snap-fitting method is convenient for quick installation and disassembly. When installing or repairing the trap, construction personnel can easily connect or separate the inlet assembly 1 and the outlet assembly 2, further improving maintenance efficiency. For example, during the installation of the drainage system in the bathroom, construction personnel can quickly snap the inlet assembly 1 to the outlet assembly 2 without the need for complicated tools and operations, greatly shortening the installation time.

[0029] like Figure 2 and Figure 3 As shown, the socket 2.7 is a step seat formed by different diameters at the top of the discharge outlet assembly 2, which is arranged at the top of the discharge outlet assembly 2 and distributed circumferentially along the inner wall of the discharge outlet assembly 2. The step seat design of the socket 2.7 has many advantages. First, it can provide a more uniform force distribution. When the access port assembly 1 is connected to the socket 2.7 through the step portion 1.3, the step seat structure of the socket 2.7 can evenly disperse the force transmitted from the access port assembly 1 to the top of the discharge outlet assembly 2, thereby enhancing the strength and stability of the connection part and reducing the risk of damage due to excessive local force. Secondly, the circumferentially arranged socket 2.7 simplifies the installation process. When installing the access port assembly 1, the construction personnel do not need to accurately align it with a specific position. They only need to align the step portion 1.3 of the access port assembly 1 with any position of the socket 2.7, and then rotate or press to complete the installation, thereby reducing the difficulty of installation and improving construction efficiency.

[0030] like Figure 3As shown, the water inlet baffle 2.1 and the water outlet baffle 2.3 are arranged vertically, dividing the inner cavity of the outlet assembly 2 into an S-shaped channel. The upper end surface of the water inlet baffle 2.1 is higher than the upper end surface of the water outlet baffle 2.3, and the water inlet baffle 2.1 is located in the middle part of the height direction of the outlet assembly 2, and does not contact the bottom end of the outlet assembly 2. The upper end surface of the water inlet baffle 2.1 is lower than the upper end surface of the outlet assembly 2, and has the same height as the socket 2.7, that is, the tail end of the water inlet channel 2.2 is connected to the head end of the middle channel 2.4 at the bottom end of the outlet assembly 2, and the bottom end of the water outlet baffle 2.3 is connected to the bottom end of the outlet assembly 2. The upper end surface of the water outlet baffle 2.3 is lower than the upper end surface of the outlet assembly 2. After installation, the lower end surface of the plug-in cavity 1.2 is lower than the upper end surface of the outlet assembly 2, that is, the outlet assembly 2 and the plug-in cavity 1.2 jointly form an intermediate channel 2.4 and an outlet channel 2.5. The outlet 2.6 is vertically arranged and connected to the outlet channel 2.5, and is arranged below the intermediate channel 2.4 and the outlet channel 2.5. The design of this S-shaped channel is the key to the trap to achieve good drainage performance and water sealing function. During the drainage process, water flows into the water inlet channel 2.2, is buffered by the intermediate channel 2.4, and then is discharged from the outlet channel 2.5. The longer S-shaped path effectively slows down the water flow speed, reduces the impact of the water flow on the pipe, and reduces the noise. At the same time, a certain amount of water is always maintained in the S-shaped channel to form a water seal, which effectively prevents odors and pests from entering the room through the drainage pipe. For example, during the drainage process of the kitchen sink, the water flows through the S-shaped channel and is discharged smoothly without generating excessive noise. At the same time, the water seal can also effectively prevent the odor from the sewer from returning to the kitchen.

[0031] like Figure 3As shown, the lower end face of the water inlet baffle 2.1 is lower than the upper end face of the water outlet baffle 2.3, and the upper end face is higher than the upper end face of the water outlet baffle 2.3. The lower end of the water outlet channel 2.5 is connected to a discharge port 2.6 with a parallel axis. The discharge port 2.6 is similar to an elliptical socket and can be connected to a similar elliptical socket of the same specification. An access port 1.1 is provided above the water inlet channel 2.2. As a preferred embodiment, the nominal outer diameter of the access port 1.1 is dn50, and the axis of the access port 1.1 is perpendicular to the water inlet channel 2.2. This arrangement can realize the concealed installation of the water storage pipe, and the discharge port 2.6 is provided below the water outlet baffle 2.3. This structural design allows the water flow to transition more smoothly when entering the water trap, avoiding the direct impact of the water flow on the bottom of the inner wall of the discharge port assembly, reducing water splashing and bubble generation, and further reducing drainage noise. Whether it is a drainage system for a family bathroom or a commercial place, the reduction of drainage noise can significantly improve the user experience and create a quieter and more comfortable environment. At the same time, the vertically arranged inlet 1.1 and outlet 2.6 can better meet the connection requirements of the pipeline. This vertical layout can better meet the connection requirements of the pipeline, especially in the concealed installation scenario. Concealed installation, as a common drainage pipe installation method, has high requirements for space utilization and aesthetics. The vertical design of the inlet 1.1 and outlet 2.6 allows the water trap to cleverly extend out of the wall after concealed installation, so that it can be easily connected to the appliance drain pipe. This connection method not only improves the sealing of the connection and reduces the risk of water leakage, but also enhances the reliability of the connection.

[0032] like Figure 2As shown, the bottom ends of the water inlet channel 2.2 and the middle channel 2.4 are connected to the inspection port 3, the inspection port 3 is axially parallel to the access port 1.1, and the access port 1.1 is axially perpendicular to the discharge port 2.6. The inspection port 3 spans between the water inlet channel 2.2 and the middle channel 2.4, and is connected to the connecting part below the two channels. As a priority, its nominal inner diameter is 32, 40, and 50 specifications, and can be connected to the inspection port 3 accessories. The setting of the inspection port 3 provides great convenience for the daily maintenance and repair of the water trap. During the operation of the drainage system, if there is a blockage or other problems, the maintenance personnel can quickly locate the blockage position through the inspection port 3 and clean it. The parallel and vertical axial design makes the layout of the inspection port 3, the access port 1.1, and the discharge port 2.6 more reasonable, which is convenient for operation, installation, and later maintenance. For example, when installing the water trap, the construction personnel can arrange and connect the pipeline more conveniently according to the axial relationship between the inspection port 3, the access port 1.1, and the discharge port 2.6. The setting of the inspection port 3 undoubtedly provides great convenience for the daily maintenance and inspection of the water trap. In the actual operation of the drainage system, due to the influence of various factors, such as the accumulation of debris and the entanglement of hair, blockage and other problems are very likely to occur. Once such a situation occurs, the maintenance personnel can use the inspection port 3, a key channel, to quickly and accurately locate the blockage position. The inspection port 3 is like an observation window, allowing maintenance personnel to directly peek into the condition inside the water trap. After locating the blockage position, the maintenance personnel can directly use professional cleaning tools such as pipe dredgers and manual silt removal brushes through the inspection port 3 to clean the blocked part. In the later maintenance process, maintenance personnel can benefit from this reasonable layout. Since the axial relationship between the inspection port 3 and the access port 1.1 and the discharge port 2.6 is fixed and reasonable, the inspection port 3 can be exposed after the water trap is concealed, and maintenance personnel can more conveniently use various tools to operate the inside of the water trap through the inspection port 3. Whether it is simple cleaning work or replacement and maintenance of internal components, it becomes more handy.

[0033] like Figure 2As shown, the lower end surface of the water inlet baffle 2.1 is located within the projection plane of the inspection port 3 along its axis, ensuring that the mold can achieve core pulling and form the product. The access port 1.1 and the port of the inspection port 3 are located on the same vertical line. The inspection port 3 is composed of a plurality of key components, including the inspection port body 3.1, the inspection port sealing ring 3.3, the cleaning port cover 3.2 and the inspection port decorative cover 3.4. These components are arranged in order from the discharge port assembly 2 outward. Among them, the inspection port body 3.1 is in the shape of a circular tube, and threads are carefully arranged on the outer inner wall of the inspection port body 3.1. Matching this, the cleaning port cover 3.2 adopts an inward-rotating design, that is, an inward-rotating cleaning port cover 3.2, which can be tightly assembled with the threads on the inner wall of the inspection port body 3.1. This design not only ensures the stability of the connection between the cleaning port cover 3.2 and the inspection port body 3.1, but also facilitates disassembly and installation when necessary. In order to further enhance the sealing and prevent water leakage, an inspection port sealing ring 3.3 is specially set between the inspection port body 3.1 and the cleaning port cover 3.2. This small sealing ring, like a solid barrier, effectively prevents water from leaking from the connection between the inspection port body 3.1 and the cleaning port cover 3.2. On the outside of the cleaning port cover 3.2, an inspection port decorative cover 3.4 is cleverly clamped. The inspection port decorative cover 3.4 not only plays a role in beautifying the appearance, making the inspection port 3 more coordinated and unified with the surrounding environment, but also protects the internal components to a certain extent and prevents them from being damaged by the outside. The importance of this layout design is reflected in many aspects. On the one hand, due to the special position setting of the inspection port 3, it allows maintenance personnel to more intuitively observe the water flow under the water inlet baffle 2.1. During the drainage process, after the water flows through the water inlet channel 2.2, a specific water flow state will be formed under the water inlet baffle 2.1. Through the inspection port 3, maintenance personnel can clearly observe whether the water flow is smooth, whether there are abnormal vortices, whether there is debris accumulation, etc. Once abnormal water flow is found, or signs of blockage are detected, maintenance personnel can take timely measures to deal with it, avoid further deterioration of the problem, and ensure the normal operation of the drainage system. On the other hand, the ports of the access port 1.1 and the inspection port 3 are located on the same vertical line. This design brings great convenience to construction personnel when grooving and concealing the wall. In the actual construction process, the wall groove concealed water trap requires precise positioning and operation. Construction personnel can use professional measuring tools and cutting equipment according to the position of the access port 1.1 and the inspection port 3 to accurately cut a suitable hole on the tile. In this way, the water trap can be installed in the wall just right, which not only ensures the accuracy and stability of the installation, but also keeps the wall beautiful after the installation is completed. If the position relationship between the access port 1.1 and the inspection port 3 is unreasonable, the construction personnel may deviate when cutting the tile hole, resulting in uneven installation of the water trap, affecting the appearance, and may even affect the normal function of the drainage system.

[0034] Example 2.

[0035] like Figure 4 As shown, the present invention also provides another embodiment of a concealed trap in a drainage pipe. It also includes an inlet assembly 1 and an outlet assembly 2. The inlet assembly 1 is installed on the socket 2.7 of the outlet assembly 2. The socket 2.7 of the outlet assembly 2 is also stepped and arranged circumferentially around the inner wall of the top of the outlet assembly 2, which not only enhances the stability of the connection between the inlet assembly 1 and the outlet assembly 2, but also makes the force distribution of the entire structure more uniform, effectively avoiding problems such as loose connection caused by uneven local force. A water outlet baffle 2.3 is arranged inside the outlet assembly 2. The water outlet baffle 2.3 is arranged on the side of the outlet assembly 2 close to the outlet 2.6. The outlet 2.6 and the access port 1.1 are respectively located on both sides of the water storage pipe. The outlet 2.6 is arranged below the water outlet baffle 2.3 and is arranged vertically. The axis of the outlet 2.6 is almost coincident with the axis of the water outlet channel 2.5, ensuring that the water flow can flow from the water outlet channel 2.5 to the outlet 2.6 in the smoothest way when passing through the water trap, thereby minimizing the water flow resistance and improving the drainage efficiency. The bottom end of the water outlet baffle 2.3 is connected to the inner wall of the outlet assembly 2, and the upper end surface of the water outlet baffle 2.3 is lower than the upper end surface of the outlet assembly 2, that is, the end of the intermediate channel 2.4 is connected to the head end of the water outlet channel 2.5.

[0036] like Figure 5 and Figure 6As shown, a plug-in cavity 1.2 is provided at one side of the access port 1.1 at the bottom end of the access port assembly 1. The plug-in cavity 1.2 is provided below the access port 1.1 and is connected to the access port 1.1, and is provided on one side of the inner wall of the access port assembly 1. The lower end surface of the plug-in cavity 1.2 is lower than the upper end surface of the water outlet baffle 2.3. The axis of the access port 1.1 is perpendicular to the axis of the plug-in cavity 1.2, and the axis of the access port 1.1 is perpendicular to the axis of the discharge port 2.6. The plug-in cavity 1.2 and the water outlet baffle 2.3 cooperate with each other to divide the inner cavity of the discharge port assembly 2 into an inlet channel 2.2, an intermediate channel 2.4 and an outlet channel 2.5 connected end to end. The inlet channel 2.2, the intermediate channel 2.4 and the outlet channel 2.5 are connected to form an S shape, that is, the plug-in cavity 1.2 is used as an inlet baffle. The outlet channel 2.5 is connected to the outlet 2.6 with an axis parallel to the outlet channel 2.5 at the bottom. The water inlet channel 2.2 and the water outlet channel 2.5 are connected to the inspection port 3 at the bottom. The axis of the inspection port 3 is parallel to the axis of the access port 1.1. This design makes the position of the inspection port 3 in the entire trap structure more reasonable, which provides great convenience for subsequent maintenance and repair work. The inspection port 3 is arranged below the side wall of the plug-in cavity 1.2 close to the water outlet baffle 2.3, and is connected to the connecting part of the water inlet channel 2.2 and the middle channel 2.4. The inspection port 3 includes an inspection port body 3.1 and an inspection port sealing ring 3.3. And the cleaning port cover 3.2, the three are arranged in sequence toward the outside with the discharge port assembly 2 as the starting point, the inspection port body 3.1 is provided with a thread on the outer wall at one end close to the outside, and the cleaning port cover 3.2 is provided with a thread matching therewith on the inner wall close to the inner side, and the cleaning port cover 3.2 is assembled to the inspection port body 3.1 by means of the thread. In order to ensure the sealing of the connection and prevent water leakage, an inspection port sealing ring 3.3 is specially arranged between the inspection port body 3.1 and the cleaning port cover 3.2, which effectively prevents water from seeping out of the connection and ensures the normal operation of the drainage system.

[0037] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, the obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A concealed trap for a drainage pipe, characterized in that: It includes an inlet assembly, which is mounted on a discharge outlet assembly, and a water inlet baffle and a water outlet baffle are arranged in the discharge outlet assembly; a plug-in cavity is arranged on one side of the bottom end of the inlet assembly and is clamped on the socket of the inner wall of the discharge outlet assembly, and an outer wall of one side of the plug-in cavity abuts against the top of the water inlet baffle; The plug-in cavity is arranged above the water outlet baffle, and the bottom end thereof is higher than the upper end surface of the water outlet baffle.

2. A concealed trap for drainage pipe according to claim 1, characterized in that: The outlet assembly and the inlet assembly are both flat cavity structures. The diameter of the plug-in cavity is different from the diameter above the inlet assembly to form a step portion. The inlet assembly is clamped on the inner wall socket at the top of the outlet assembly.

3. A concealed trap for drainage pipe according to claim 1 or 2, characterized in that: The socket is a stepped seat formed by different diameters at the top end of the discharge outlet component, which is arranged at the top end of the discharge outlet component and circumferentially arranged along the inner wall of the discharge outlet component.

4. A concealed trap for drainage pipe according to claim 1, characterized in that: The water inlet baffle and the water outlet baffle are arranged vertically, dividing the inner cavity of the discharge outlet assembly into S-shaped channels connected end to end, which are respectively an inlet channel, a middle channel and a water outlet channel.

5. A concealed trap for drainage pipe according to claim 1 or 4, characterized in that: The lower end surface of the water inlet baffle is lower than the upper end surface of the water outlet baffle, the outlet is connected to a discharge port with an axis parallel to the outlet channel, and an access port is arranged above the water inlet channel, and the axis of the access port is perpendicular to the water inlet channel.

6. A concealed trap for drainage pipe according to claim 4, characterized in that: The bottom ends of the water inlet channel and the middle channel are connected to an inspection port, the axial direction of the inspection port is parallel to the access port, and the axial direction of the access port is perpendicular to the discharge port.

7. A concealed trap for drainage pipe according to claim 6, characterized in that: The lower end surface of the water inlet baffle is located in the projection plane of the inspection port along its axis, and the ports of the access port and the inspection port are located on the same vertical line.

8. A concealed trap for drainage pipe, characterized in that: It includes an inlet assembly, which is clamped on the top inner wall socket of the outlet assembly, and a water outlet baffle is arranged in the outlet assembly; A plug-in cavity is provided at the bottom of the access port assembly on one side of the access port. The plug-in cavity is provided on the side of the water outlet baffle close to the access port and is connected to the access port. The lower end surface is lower than the upper end surface of the water outlet baffle.

9. A concealed trap for drainage pipe according to claim 8, characterized in that: The axis of the access port is perpendicular to the axis of the plug-in cavity, and the plug-in cavity and the water outlet baffle divide the inner cavity of the discharge port assembly into an inlet channel, an intermediate channel and a water outlet channel connected end to end.

10. A concealed trap for drainage pipe according to claim 9, characterized in that: The lower part of the water outlet channel is connected with a coaxially arranged discharge port, and the bottom end of the plug-in cavity is connected with an inspection port, and the axis of the inspection port is parallel to the axis of the access port.

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