Drainage device for through channel

Abstract

The utility model relates to the technical field of rail transit vehicle equipment, in particular to a drainage device for a through channel, which mainly structurally comprises a liquid collecting container, at least one water inlet, at least one water outlet, at least one plug and at least one water outlet, the at least one plug closes the at least one water outlet in a pressure-tight manner, and the at least one buoyancy body is arranged in the collecting container and is connected with the at least one plug in a sliding and rotating manner, so that the at least one plug is moved from a position for closing the drainage pipe to a release position by utilizing buoyancy of the buoyancy body in the liquid; when enough liquid is collected in the collection container, the liquid can be automatically discharged, in addition, the plug always closes the drainage pipe, the water outlet is closed outwards, when the drainage device is installed on the frame of the hinged type vehicle through channel in use, and the cavity wall of the frame can serve as the side wall or the base of the collection container, the size of a single drainage device can be large enough, and the drainage device can be used for drainage of the hinged type vehicle through channel. And materials can be saved.

Description

Technical fields:

[0001] This utility model relates to the field of rail transit vehicle equipment technology, specifically to a drainage device for through passages, which solves noise and pressure problems while draining water from inside the through passage. Background technology:

[0002] In articulated vehicles, especially articulated rail vehicles, liquids can accumulate in the connection areas, whether due to unforeseen accidents or during cleaning operations. Because the various parts of an articulated vehicle move relative to each other during operation, the tunnel floor cannot be completely sealed. Liquid enters the area beneath the tunnel floor, corroding tunnel components and causing damage. Therefore, a drainage system is needed to remove the liquid. Existing drainage systems are generally designed with simple openings to prevent liquid from accumulating under the tunnel floor, allowing it to drain immediately to the outside. While this achieves drainage, it does not completely seal the tunnel, and high noise and pressure issues (especially when traversing tunnels) persist. For example, Chinese Patent 202210283066.0 discloses a drainage device for a rail vehicle passageway, including a first drainage outlet at the bottom of the passageway canopy, a water collection pool below the first drainage outlet, one end of a hanger hinged to the outer wall of the water collection pool, and a wind deflector installed at the other end of the hanger; a second drainage outlet at the bottom of the water collection pool, a sliding plate slidably installed below the water collection pool, and a third drainage outlet on the sliding plate; the middle of the hanger passes through the sliding plate, and an elastic reset structure is installed between the hanger and the outer wall of the water collection pool; when the vehicle decelerates or stops, the sliding plate is in its initial position, and the second and third drainage outlets are connected; when the vehicle is running, the sliding plate moves along the longitudinal direction of the vehicle under the action of wind. The device moves forward or backward, causing the second and third drain outlets to be misaligned. The middle part of the boom passes through the slide plate via a ball joint. A bracket is installed on the outer wall of the water collection tank, and the boom is hinged to the bracket. A first slot is provided at the bottom of the water collection tank, and a second slot is provided on the slide plate. The slide plate is installed at the bottom of the water collection tank through the cooperation of the first and second slots. A first limit stop is provided at the end of the water collection tank near the boom, and a second limit stop is provided at the end of the slide plate away from the boom. A sealing groove is provided at the bottom of the water collection tank along the longitudinal direction of the vehicle. A sealing ridge matching the sealing groove is provided on the slide plate, and the second drain outlet passes through the sealing groove, while the third drain outlet passes through the sealing ridge. The elastic reset structure is a reset spring.Chinese Patent 201821535432.2 discloses a drainage and sealing structure for a folding canopy, including a canopy fabric. Several seals are installed at the bottom of the canopy fabric. Each seal includes a base and a sealing plug. The base has a through-hole for drainage. A sealing plug is installed in the through-hole to seal it. The sealing plug consists of a main body for sealing the through-hole, an anti-detachment part above the main body, and an operating part below the main body. The main body of the sealing plug is threadedly connected to the base. The base consists of an upper clamping plate, a lower clamping plate, and a connecting part with a central hole. The upper and lower clamping plates are fixedly connected to the canopy fabric by fasteners. The inner wall of the connecting part has internal threads for threading with the main body of the sealing plug. The connection is made of a single piece, with the lower clamp plate and the connecting part forming an integral structure. The lower clamp plate is located on the outer circumferential surface of the connecting part. The top of the connecting part passes through the tarpaulin and mates with the upper clamp plate. The central hole of the connecting part is a stepped hole, smaller at the top and larger at the bottom. The main body of the sealing plug is an inverted T-shaped frustum structure, smaller at the top and larger at the bottom. A sealing ring is fitted onto the upper half of the sealing plug body. After installation, the sealing ring is pressed tightly between the lower half of the sealing plug body and the step of the central hole of the connecting part. The anti-detachment part above the sealing plug body is a T-shaped structure, with the bottom of the T-shaped structure connected to the main body. The diameter of the head of the T-shaped structure is larger than the diameter of the top of the central hole of the base. The operating part below the sealing plug body is a downwardly extending flat plate structure. Both the base and the sealing plug are made of nylon material. Therefore, it is necessary to develop and design a drainage device for through-channels that remains closed except when draining, thus solving the noise and pressure problems. Summary of the Invention:

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a drainage device for a through-channel. When a certain amount of liquid is collected, the plug is lifted and the liquid in the collection container is discharged. At other times, the drain pipe is always in a pressure-sealed state.

[0004] To achieve the above objectives, the main structure of the drainage device for through channels disclosed in this utility model includes a collection container, which has good corrosion resistance and sealing performance.

[0005] There is at least one inlet to allow liquid to enter the interior space at any time, at least one outlet, at least one plug to close the outlet by pressure sealing, and at least one buoyancy body that is slidably and rotatably connected to at least one plug so that the buoyancy body in the liquid can be used to lift at least one plug and discharge the liquid to the outside.

[0006] When the height of the collection container involved in this utility model is small, a canopy can be set on the top. When the height is large, the canopy can be omitted. At least one water inlet is arranged on the canopy. The canopy is not closed. A separate grid or screen can be used as the canopy. The grid or screen forms a large number of water inlets so that the liquid can quickly and conveniently enter the collection container, while blocking the dirt or debris carried by the liquid. It can also limit the height of the buoyancy body. In addition, the canopy extends vertically at least in the part that exceeds the side wall and gradually tapers vertically. It is trapezoidal at least in cross-section, which creates rising space for the buoyancy body and facilitates the flow of liquid into the collection container from multiple sides.

[0007] The inlet and outlet are for liquid flow. Liquid can enter the collection container by its own gravity or by a pump. There can be multiple inlets and outlets. All outlets are equipped with a single plug, or the plug can be designed to seal multiple outlets with a single plug. In cases where the collection container is very tall, the inlet can be located in the upper middle part of the side wall, preferably in the ceiling area, to collect a relatively large amount of liquid. The outlet can be located on the side wall near the bottom, preferably in the bottom area, so that the liquid can be discharged unimpeded by its own gravity.

[0008] The buoyancy body is made of lightweight, low-density materials, including expanded polystyrene; or it can be a hollow structure made of materials such as plastic or metal. The buoyancy body is subjected to buoyancy in the liquid, which is sufficient to make the buoyancy body float, thereby causing the plug to close or release the drain pipe. The buoyancy body can also be used in combination with other forces, such as the elastic force of elastic elements.

[0009] The geometry or material of the plug gives it a certain binding or clamping force at the location of the sealed drain pipe. Pressure sealing can also be achieved by using additional closing force, such as using magnets or springs in the outlet or plug area to make the plug firmly fixed at the outlet under the action of magnetic force or elastic force.

[0010] The buoyancy body and the plug involved in this utility model can be rigidly connected or connected by a movable rope or chain so that the plug can be pulled up by the buoyancy body. The buoyancy body is connected to a lever, which is rotatably fixed in the collection container. The plug is slidably and rotatably mounted on the lever. Using the lever as the main connecting element, the buoyancy associated with the floating or rising buoyancy body drives the plug to rise so as to reliably move the plug from the closed position to the released position. The plug closes the drain pipe by magnetic force, elastic force or clamping force, which not only has a sealing effect, but also resists excessive positive or negative pressure from the outside.

[0011] In addition, levers can also be used to adjust direction. The direction of movement of the buoyant body does not have to be the same as the direction of movement of the stopper. When the buoyant body floats upward, the stopper is moved in the opposite direction (i.e. downward) by levers.

[0012] This utility model relates to a drainage device for a passageway. When used, it is installed on the frame of an articulated vehicle passageway. When the cavity wall of the frame can be used as the side wall or base of the collection container, the size of a single drainage device can be large enough, while saving materials and reducing the space occupied by the drainage device. The passageway has multiple frames arranged in sequence, and at least one drainage device is arranged on at least one frame. Preferably, at least one drainage device is integrated into at least one frame element. When the user walks on the floor assembly, the drainage device is not visible. Setting multiple drainage devices can quickly drain a large amount of liquid generated in a short period of time to the outside, and can also ensure that the drainage of the passageway is not affected when one drainage device fails for unforeseen reasons, thus ensuring redundancy and reliability.

[0013] Water or other liquids that accumulate on the flooring flow beneath the flooring and are reliably drained to the outside through drain pipes, avoiding problems such as corrosion, noise, and pressure changes.

[0014] Compared with the prior art, the main structure of this utility model includes a liquid collection container with at least one inlet to allow liquid to enter the container at any time, at least one outlet, at least one stopper to close at least one outlet by pressure sealing, and at least one buoyancy body arranged inside the collection container and slidably and rotatably connected to at least one stopper. The buoyancy of the buoyancy body in the liquid moves at least one stopper from the closed drain pipe position to the released position. When a certain amount of liquid is collected in the collection container, the liquid can be automatically discharged. In addition, the stopper keeps the drain pipe closed and the outlet is closed to the outside, thus solving the problems of noise and pressure change. Attached image description:

[0015] Figure 1 This is a schematic diagram of the main structure of the plug in the closed state according to this utility model.

[0016] Figure 2 This is a schematic diagram of the main structure of the plug in the open state according to this utility model.

[0017] Figure 3 This is a schematic diagram of the main structure of this utility model in use.

[0018] Figure 4 This is a schematic diagram showing the connection between the present invention and the frame. Detailed implementation method:

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] Example 1:

[0021] The main structure of a drainage device for a through-passage, as described in this embodiment, is as follows: Figure 1-2 As shown, it includes a collection container 1, a canopy 2, a drain pipe 3, a bearing mounting block 4, a fixed bearing 5, a lever 6, a buoyancy body 7, a sliding bearing 8, a plug 9, and a spring 10; the collection container 1 is provided with a canopy 2 at the top, a drain pipe 3 at the bottom, and a bearing mounting block 4 inside. The bearing mounting block 4 is connected to the lever 6 through the fixed bearing 5. The lever 6 is provided with a buoyancy body 7, and is also connected to the plug 9 through the sliding bearing 8. The plug 9 cooperates with the drain pipe 3.

[0022] In addition, a spring 10 is provided between the buoyancy body 7 and the bottom of the collection container 1.

[0023] The materials of the collection container 1 and the lever 6 involved in this embodiment include plastic or metal;

[0024] The middle part of the canopy 2 protrudes upward and gradually tapers in the process, forming a trapezoidal shape in cross section, and has several through holes 21. The bottom of the canopy 2 has an outwardly extending overlapping seat plate 22, forming a screen or grid structure. The through holes 21 are used as water inlets to prevent larger particles from entering the collection container 1 and clogging the drain pipe 3.

[0025] The buoyancy body 7 is a hollow structure made of materials including metal and plastic, and is slidably and rotatably connected to the plug 9 via a lever 6;

[0026] The stopper 9 is made of a material with good sealing performance, such as acrylonitrile butadiene rubber with high corrosion resistance;

[0027] The spring 10 is made of metal, plastic, or rubber, and adopts a leaf spring structure, helical spring, elastic band, elastic bracket, etc. Its elasticity can cause the buoyancy body 7 to close the drain pipe 3.

[0028] This embodiment relates to a drainage device for through passageways, used to achieve internal drainage of through passageways in articulated vehicles, particularly articulated rail vehicles. It can be used individually or in combination. Figure 3-4 As shown, it can be integrated into the frame 100 at the bottom of the passageway, and the floor above it will not be affected by the outside.

[0029] When water or other liquids overflow during cleaning of the floor components, they enter the area beneath the floor components and accumulate in the collection container 1 through the through-hole 21. The buoyancy of the liquid causes the buoyant body 7 to rise, lifting the plug 97 from the position blocking the drain pipe 3 to above the drain pipe 3. Under the action of gravity, the liquid is automatically discharged to the outside from the drain pipe 3. The buoyant body 7 sinks, causing the plug 9 to descend. The plug 9 closes the drain pipe 3 by pressure sealing, and the cycle continues to automatically drain the water.

[0030] Through lever 6, the buoyancy force on the buoyant body 7 moving upward in the liquid, the weight of the buoyant body 7 itself, and the tension of spring 10 can be effectively converted and amplified onto the stopper 9. When there is little liquid, the stopper 9 is firmly fixed to the drain pipe 3. Even under certain external overpressure conditions, the stopper 9 can reliably close the drain pipe 3 by pressure sealing. The elastic force of spring 10 pulls the buoyant body 7 downward, further improving the pressure sealing performance of the stopper 9. When there is enough liquid, the buoyancy overcomes the elastic force, causing the buoyant body 7 to drive the stopper 9 to rise.

Claims

1. A drainage device for a through-passage, characterized in that, It includes a collection container with at least one inlet, one outlet and one buoyancy body, the buoyancy body being slidably and rotatably connected to at least one plug, and also has a canopy and a drain pipe, with at least one inlet located in the canopy area, and at least one plug normally closing the drain pipe by pressure sealing.

2. The drainage device for a through-passage as described in claim 1, characterized in that, At least one buoyant body is rotatably fixed to at least one lever, at least one plug is slidably and rotatably mounted on at least one lever, and the lever is rotatably mounted inside the collection container.

3. The drainage device for a through-passage as described in claim 1 or 2, characterized in that, At least one spring is connected to at least one buoyant body.

4. The drainage device for a through-passage as described in claim 3, characterized in that, The ceiling is a screen or grid structure.

5. The drainage device for a through-passage as described in claim 4, characterized in that, The ceiling extends vertically at least in the portion beyond the sidewalls and gradually tapers vertically. In cross-section, it is at least partially trapezoidal, with the cross-section parallel to the horizontal direction.

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