CN220908638U - Drainage device - Google Patents

Abstract

The utility model provides a drainage device, which comprises a shell component, a valve plate and a magnetic attraction component, wherein the shell component is provided with a flow channel, the valve plate has elasticity, and when the valve plate is in a closed state, the valve plate separates an inlet from an outlet of the flow channel; when the valve plate is in an open state, the inlet and the outlet are communicated with each other; the magnetic component comprises a first connecting block and a second connecting block, at least one of the first connecting block and the second connecting block is magnetic, the first connecting block is connected with the valve plate, and the second connecting block is connected with the shell component. The drainage device of the utility model can also comprise a balancing weight and a connecting rod assembly, the gravity of the balancing weight is transmitted to the valve plate through the connecting rod assembly, and the gravity of the balancing weight is also used for keeping the valve plate in a closed state. The valve plate is kept in a closed state under the action of the elasticity of the valve plate and the magnetic force of the magnetic attraction component, so that the backflow preventing effect of the drainage device is good.

Description

Drainage device

Technical Field

The utility model relates to the technical field of drainage, in particular to a drainage device.

Background

In the prior art, a floor drain exists, which can enable indoor water to flow into a drainage pipeline through the floor drain and can prevent odor in the drainage pipeline from flowing back to the indoor. However, in the prior art, the floor drain is sealed only by the elasticity of the valve plate, and the backflow preventing effect of the floor drain is poor.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the drainage device, the valve plate of the drainage device is kept in a closed state under the action of the elasticity of the valve plate and the magnetic force of the magnetic component, and the backflow prevention effect of the drainage device is good.

According to an embodiment of the present utility model, a drainage device includes: the shell assembly is provided with a flow channel, and two ends of the flow channel are respectively provided with an inlet and an outlet; a valve plate having elasticity, the valve plate being connected to the housing assembly, the valve plate having an open state and a closed state, the valve plate separating the inlet and the outlet when the valve plate is in the closed state; when the valve plate is in the open state, the inlet and the outlet are communicated with each other; the fluid entering the flow passage from the inlet can enable the valve plate to be switched from the closed state to the open state; the magnetic assembly comprises a first connecting block and a second connecting block, at least one of the first connecting block and the second connecting block is magnetic, the first connecting block is connected with the valve plate, the second connecting block is connected with the shell assembly, and the magnetic force applied to the first connecting block by the second connecting block and the elasticity of the valve plate are used for keeping the valve plate in the closed state.

The drainage device provided by the embodiment of the utility model has at least the following beneficial effects: the drainage device disclosed by the utility model keeps the valve plate in a closed state through the elasticity of the valve plate and the magnetic force provided by the magnetic component, and the elasticity of the valve plate and the magnetic force provided by the magnetic component jointly realize the sealing of the drainage device.

According to some embodiments of the utility model, the valve plate comprises a cone located in the flow channel, one end of the cone is connected with the shell component, and the other end of the cone is used for abutting against the wall surface of the flow channel to separate the inlet and the outlet; the cone comprises an outer conical surface, a cavity is formed in the inner side of the cone, the outer conical surface is used for being in contact with fluid entering the flow channel from the inlet, the cavity wall of the cavity and the outer conical surface are arranged in a back-to-back mode, the outlet is arranged to the inlet, and the outer conical surface and the cavity wall are gradually folded towards the central axis of the flow channel.

According to some embodiments of the utility model, the first connection block is located outside the second connection block, the second connection block and the first connection block being mutually exclusive; or the second connecting block is positioned on the outer side of the first connecting block, and the second connecting block and the first connecting block are mutually attracted.

According to some embodiments of the utility model, the housing assembly comprises: the body is provided with the flow channel, the flow channel is vertically arranged, the top end of the flow channel is the inlet, and the bottom end of the flow channel is the outlet; the grate is arranged at the inlet and is provided with a plurality of first through holes; the filter screen is positioned below the grate and arranged in the flow channel, the filter screen is provided with a plurality of second through holes, the top end of the valve plate is connected with the filter screen, and the second connecting block is connected with the filter screen or the body.

According to some embodiments of the utility model, the drain device further comprises a linkage assembly, the housing assembly comprising: the connecting cylinder is provided with a central channel with two through ends, the central channel is at least one part of the flow channel, and at least one part of the valve plate is positioned in the central channel; the balancing weight, the second connecting block connect in the balancing weight or the connecting cylinder, the balancing weight with the valve block all with link assembly is connected, the gravity of balancing weight is used for making the valve block keeps closed state.

According to some embodiments of the utility model, a second connection block is connected to the balancing weight, the first connection block being arranged outside the second connection block, the second connection block and the first connection block being mutually exclusive; or the second connecting block is connected with the connecting cylinder, the second connecting block is arranged on the outer side of the first connecting block, and the second connecting block and the first connecting block are mutually attracted.

According to some embodiments of the utility model, the first connecting block is embedded in the valve plate, and the second connecting block is embedded in the balancing weight.

According to some embodiments of the utility model, the balancing weight is liftable relative to the connecting cylinder, the valve plate surrounds the balancing weight, and the connecting rod assembly comprises: the connecting rods are arranged in a plurality, the connecting rods are distributed at intervals along the circumferential direction of the balancing weight, one end of each connecting rod, which is close to the central axis of the runner, is a connecting rod inner end, one end of each connecting rod, which is far away from the central axis, is a connecting rod outer end, the connecting rod inner ends are rotationally connected with the balancing weight, and the connecting rod inner ends are higher than the connecting rod outer ends; the framework is provided with a plurality of, and a plurality of the framework is followed the circumference interval distribution of balancing weight, every the connecting rod with one the framework is connected, the valve block connect in the framework, the connecting rod outer end with the framework rotates to be connected.

According to some embodiments of the utility model, the housing assembly further comprises a central column fixedly connected to the connecting cylinder, the central column being located in the central passage, the connecting cylinder and the central column being both vertically disposed; the balancing weight is slidably sleeved outside the center column, the top end of the valve plate is connected with the center column, and the bottom end of the valve plate is used for being abutted with the connecting cylinder so as to separate the inlet from the outlet.

According to some embodiments of the utility model, the housing assembly further comprises: the connecting cylinder is connected to the bottom end of the body, the connecting cylinder and the body jointly define the flow channel, the inlet is positioned at the top end of the body, and the outlet is positioned at the bottom end of the connecting cylinder; the grate is arranged at the inlet and is provided with a plurality of first through holes; the filter screen is arranged in the flow channel, is positioned below the grate and above the valve plate, and is provided with a plurality of second through holes.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic view of a drainage device according to a first embodiment of the present utility model;

Fig. 2 is an exploded view of a drainage device according to a first embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a drain device according to a first embodiment of the present utility model when a valve plate is in a closed state;

FIG. 4 is a cross-sectional view of a drain device according to a first embodiment of the present utility model when a valve plate is in an open state;

FIG. 5 is a schematic view of a drainage device according to a second embodiment of the present utility model;

Fig. 6 is an exploded view of a drainage device according to a second embodiment of the present utility model;

FIG. 7 is a schematic view of a valve plate according to a second embodiment of the present utility model;

FIG. 8 is a cross-sectional view of a drain device according to a second embodiment of the present utility model when a valve plate is in a closed state;

FIG. 9 is a cross-sectional view of a drain device according to a second embodiment of the present utility model when a valve plate is in an open state;

FIG. 10 is an enlarged schematic view of area A of FIG. 8;

FIG. 11 is a schematic diagram illustrating a connection relationship between a connecting rod assembly and a counterweight according to a second embodiment of the utility model;

fig. 12 is a schematic view of a counterweight according to a second embodiment of the utility model.

Reference numerals:

100-drainage device, 101-body, 102-grate, 103-first through hole, 104-filter screen, 105-second through hole, 106-runner, 107-inlet, 108-shell component, 109-connecting part, 110-cone part, 111-valve plate, 112-outlet, 113-magnetic component, 114-second connecting block, 115-first connecting block, 116-central axis, 117-cavity, 118-cavity wall, 119-external conical surface;

201-connecting tube, 202-central column, 203-peripheral part, 204-horizontal bar part, 205-screw part, 206-flanging part, 207-balancing weight, 208-connecting rod assembly, 209-connecting rod, 210-skeleton, 211-mounting groove, 212-connecting ring, 213-annular groove, 214-longitudinal groove, 215-connecting rod inner end, 216-connecting rod outer end, 217-skeleton inner end, 218-skeleton outer end, 219-main chamber, 220-central channel.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, and is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Fig. 1 to 4 show a drainage device 100 according to a first embodiment of the present utility model, the drainage device 100 comprising a housing assembly 108, a valve sheet 111 and a magnetic attraction assembly 113. The drainage device 100 of the first embodiment may be installed on the floor of a room and used as a floor drain.

As shown in fig. 2, the housing assembly 108 includes a body 101, a grate 102, and a screen 104. The body 101 is hollow, and the chamber inside the body 101 is a flow passage 106, and the flow passage 106 can allow fluid to pass through. In this embodiment, the flow passage 106 is mainly used to pass water that needs to be discharged from the room to the drain pipe. The two ends of the flow channel 106 are respectively provided with an inlet 107 and an outlet 112, as shown in fig. 2, the inlet 107 is the top end of the flow channel 106, and as shown in fig. 3, the outlet 112 is the bottom end of the flow channel 106. Referring to fig. 2 and 3, a grate 102 is connected to the top end of the body 101, and the grate 102 is installed at the inlet 107. As shown in fig. 3, the filter screen 104 is located below the grate 102 and in the flow channel 106, and the top end of the valve plate 111 is connected to the filter screen 104. As shown in fig. 2, the grate 102 has a plurality of first through holes 103, the filter screen 104 has a plurality of second through holes 105, and the first through holes 103 and the second through holes 105 allow water to pass through. The bottom end of the body 101 may be connected to a drain pipe (drain pipe not shown), the top end of the body 101 may be exposed to the floor of the room, and the indoor water may flow into the drain pipe through the drain device 100. Both the grate 102 and the filter screen 104 can block sundries mixed in water, and the drainage device 100 provided with the grate 102 and the filter screen 104 can filter water twice so as to prevent larger sundries from entering the drainage pipeline and blocking the drainage pipeline.

It should be noted that, in order to realize the function of the drainage device 100 for allowing fluid to flow in one direction, the housing assembly 108 may not need the grate 102 and the filter screen 104. Accordingly, the shape of the body 101 may be adaptively adjusted so as to provide a location where the top end of the valve sheet 111 may be connected. Moreover, in other embodiments, the housing assembly 108 may eliminate one of the grate 102 and the screen 104.

The valve sheet 111 has elasticity, and the valve sheet 111 may be made of rubber, a film having elasticity, or other materials having elasticity, and the valve sheet 111 has a closed state and an open state. In fig. 3, the valve sheet 111 is in a closed state, and at this time, the bottom edge of the valve sheet 111 abuts against the inner wall surface of the flow passage 106, thereby separating the inlet 107 and the outlet 112. In the present utility model, "separating the inlet 107 from the outlet 112" means that the fluid cannot flow from the inlet 107 to the outlet 112 and that the fluid cannot flow from the outlet 112 to the inlet 107. The drainage device 100 shown in fig. 3 is in a state where drainage is not performed or in a state after drainage is completed, and no water enters the drainage device 100 from the grate 102. Since the inlet 107 and the outlet 112 are separated by the valve sheet 111 at this time, the sewage and the odor in the drain pipe connected to the bottom end of the drain device 100 cannot pass through the valve sheet 111 from bottom to top, and the sewage and the odor in the drain pipe cannot flow back into the room.

In fig. 4, the valve plate 111 is in an open state, where a gap is formed between the bottom edge of the valve plate 111 and the inner wall surface of the flow channel 106, and the inlet 107 and the outlet 112 are in communication with each other. In the present utility model, "the inlet 107 and the outlet 112 communicate with each other" means that fluid can flow from the inlet 107 to the outlet 112. As shown in fig. 4, the drainage device 100 in the drainage is shown by the broken line with an arrow in fig. 4, which indicates the flow path of water. Referring to fig. 3 and 4, after water enters the drainage device 100 from the grate 102, the gravity and pressure of the water deform the valve sheet 111 after the water contacts the valve sheet 111, so that the valve sheet 111 is switched from the closed state shown in fig. 3 to the open state shown in fig. 4. As shown in fig. 4, after the valve sheet 111 is deformed, water can pass through the gap between the valve sheet 111 and the wall surface of the flow passage 106 and flow out from the outlet 112. Thus, the indoor water can be discharged into the water discharge pipeline. When the water discharge is completed, the force applied to the valve sheet 111 by the water is removed, the valve sheet 111 is restored to the closed state as shown in fig. 3 under its own elasticity, and the valve sheet 111 is maintained to the closed state under its own elasticity. In this way, the drainage device 100 can be automatically opened when drainage is needed, and is automatically closed and prevents backflow of fluid after the drainage is completed.

The magnetic assembly 113 is not specifically shown in fig. 2, and the position of the magnetic assembly 113 can be referred to in fig. 3 and 4. In fig. 3, two magnetic assemblies 113 are provided, and in other embodiments, only one magnetic assembly 113 may be provided, or the number of magnetic assemblies 113 may be greater than 2. In the case where the plurality of magnetic attraction members 113 are provided, the plurality of magnetic attraction members 113 may be disposed at intervals around the central axis 116 of the flow path 106 (i.e., distributed at intervals along the circumferential direction of the flow path 106).

As shown in fig. 3, the magnetic assembly 113 includes a first connection block 115 and a second connection block 114, the first connection block 115 is connected with the valve sheet 111, and the second connection block 114 is connected with the housing assembly 108. At least one of the first connection block 115 and the second connection block 114 has magnetism. For example, the first connection block 115 and the second connection block 114 are each provided as a magnet; or one of the first connection block 115 and the second connection block 114 is provided as a magnet, and the other is made of iron or other ferromagnetic material. The magnetic force applied to the first connection block 115 by the second connection block 114 serves to maintain the valve sheet 111 in a closed state. In fig. 3, the second connection block 114 belonging to the same magnetic attraction assembly 113 is located outside the first connection block 115, the second connection block 114 and the first connection block 115 attract each other, and the magnetic force applied to the first connection block 115 by the second connection block 114 serves to bring the first connection block 115 and the second connection block 114 close to each other, thereby switching the valve sheet 111 from the open position to the closed position and maintaining the valve sheet 111 in the closed position.

In the present utility model, as shown in fig. 3, the "second connection block 114 is located outside the first connection block 115" means that the distance between the second connection block 114 and the central axis 116 is greater than the distance between the first connection block 115 and the central axis 116. Similarly, reference to "the first connection block 115 being located outside the second connection block 114" hereinafter means that the first connection block 115 is located farther from the central axis 116 than the second connection block 114 is located from the central axis 116.

Prior art floor drains typically rely only on the elasticity of the valve plate to maintain a seal. In contrast, the drainage device 100 of the first embodiment of the present utility model realizes the sealing of the drainage device 100 by the elasticity of the valve plate 111 and the magnetic force provided by the magnetic attraction assembly 113, and compared with the prior art, the drainage device 100 of the first embodiment of the present utility model has better sealing effect and backflow preventing effect. In addition, the elasticity of the valve plate 111 and the magnetic force provided by the magnetic attraction assembly 113 can switch the valve plate 111 from the open state to the closed state, so that the valve plate 111 of the drainage device 100 of the first embodiment is reset to the closed state at a higher speed than the prior art, which is beneficial to reducing the time that the fluid may flow back and improving the backflow preventing effect of the drainage device 100.

The valve sheet 111 in the first embodiment will be described again. As shown in fig. 2, the valve sheet 111 includes a tapered portion 110 and a connecting portion 109, the connecting portion 109 is columnar, and the connecting portion 109 is connected to the tip of the tapered portion 110. As shown in fig. 3, the cone 110 is disposed in the flow channel 106, and the connection portion 109 is engaged with the filter screen 104. As previously described, the screen 104 is part of the housing assembly 108; accordingly, the taper 110 is indirectly connected to the housing assembly 108 via the connection 109. As shown in fig. 3, when the valve sheet 111 is in the closed state, the bottom end of the cone 110 is used to abut against the inner wall surface of the flow channel 106 to separate the inlet 107 and the outlet 112. As shown in fig. 4, the cone 110 includes an outer tapered surface 119, and a cavity 117 is provided inside the cone 110, and a wall 118 of the cavity 117 is also provided as a tapered surface. From the outlet 112 to the inlet 107, both the outer tapered surface 119 and the chamber wall 118 taper toward the central axis 116 of the flow passage 106; more intuitively, as shown in FIG. 4, in the bottom-up direction, both the outer tapered surface 119 and the cavity wall 118 taper toward the central axis 116 of the flow passage 106. The outer conical surface 119 and the chamber wall 118 are disposed opposite each other, the conical surface being adapted to contact a fluid (e.g. water) entering the flow passage 106 from the inlet 107. The chamber wall 118 may contact and block fluid (odor, sewage, etc.) entering the flow passage 106 from the outlet 112, thereby functioning as a backflow prevention.

As shown in fig. 4, based on the shape of the outer tapered surface 119, the force of the water acting on the outer tapered surface 119 during the drainage has a component force that can retract the tapered portion 110 toward the central axis 116 of the flow path 106, and this force separates the bottom end of the tapered portion 110 from the inner wall surface of the flow path 106, thereby switching the valve plate 111 to the open state. In addition, due to the shape of the outer tapered surface 119, the resistance of the water from the valve sheet 111 is small in the process of flowing the water from the inlet 107 to the outlet 112, and the drainage effect of the drainage device 100 is good. Similarly, as shown in fig. 3, if the odor and the sewage entering the flow passage 106 from the outlet 112 contact the cavity wall 118 during the non-drainage process based on the shape of the cavity wall 118, the force applied to the cavity wall 118 by the odor and the sewage drives the cone 110 to open, and the bottom end of the cone 110 still abuts against the inner wall surface of the flow passage 106, thereby preventing the backflow of the odor and the sewage.

As shown in fig. 3, the first connection block 115 is embedded in the valve sheet 111, and the second connection block 114 is embedded in the filter screen 104. Since the first connection block 115 and the second connection block 114 are not exposed, the first connection block 115 and the second connection block 114 are not in direct contact with the fluid flowing through the drainage device 100, the magnetic force of the magnetic attraction assembly 113 is not easily affected, the first connection block 115 and the second connection block 114 are not easily separated and enter the drainage pipeline, and the service lives of the first connection block 115 and the second connection block 114 are longer.

Based on the housing assembly 108 and the valve sheet 111 shown in the first embodiment, the positions of the first connection block 115 and the second connection block 114 are not limited to the manner shown in fig. 3. For example, in another embodiment, the second connection block 114 may instead be connected to the body 101, the second connection block 114 still being located outside of the first connection block, the second connection block 114 being connected to the body 101.

Furthermore, in other embodiments, the second connection block 114 may instead be disposed inside the first connection block 115, the second connection block 114 being located within the cavity 117 (the first connection block 115 may still remain in the position shown in fig. 3), and the second connection block 114 and the first connection block 115 being disposed so as to be mutually exclusive. Accordingly, the shape of the housing assembly 108 needs to be adapted, and the housing assembly 108 needs to have a portion that protrudes into the cavity 117 of the cone 110, this portion of the housing assembly 108 being similar to the center post 202 of the second embodiment, which will be described below.

When the second connection block 114 and the first connection block 115 are disposed so as to repel each other, the first connection block 115 and the second connection block 114 each have magnetism (both are magnets), and the N pole of the first connection block 115 and the N pole of the second connection block 114 are disposed opposite to each other, or the S pole of the first connection block 115 and the S pole of the second connection block 114 are disposed opposite to each other.

Next, a drainage device 100 according to a second embodiment of the present utility model will be described, and fig. 5 to 11 show the drainage device 100 according to the second embodiment of the present utility model. The drainage device 100 of the second embodiment may also be used as a floor drain. The main difference between the drainage device 100 of the second embodiment and the drainage device of the first embodiment is that the second embodiment further uses the gravity of the balancing weight 207 to improve the sealing effect of the valve sheet 111. As shown in fig. 6, the drainage device 100 includes a housing assembly 108, a valve plate 111, a weight 207, a linkage assembly 208, and a magnetic attraction assembly 113.

As shown in fig. 6, in the second embodiment, the housing assembly 108 includes a connecting cylinder 201 and a center post 202 in addition to the body 101, grate 102, and screen 104. Referring to fig. 6 and 8, the body 101 has a main chamber 219 passing through the two ends, the connecting tube 201 has a central passage 220 passing through the two ends, the connecting tube 201 is connected to the bottom end of the body 101, and the main chamber 219 and the central passage 220 are communicated with each other to form the flow passage 106 of the housing assembly 108. The top end of the main chamber 219 serves as the inlet 107 of the flow passage 106, the inlet 107 of the flow passage 106 is located at the top end of the body 101, and the bottom end of the central passage 220 serves as the outlet 112 of the flow passage 106. In addition, the bottom end of the outer cylinder can be connected with a drainage pipeline. As shown in fig. 6, the grate 102 is provided with a plurality of first through holes 103, and the grate 102 is installed at the inlet 107; the filter screen 104 is provided with a plurality of second through holes 105, and the filter screen 104 is positioned below the grate 102 and above the valve plate 111. The function of the grate 102 and the filter 104 can be referred to in the first embodiment, and will not be repeated here.

The valve sheet 111 of the second embodiment is also elastic and also has an open state and a closed state. The valve sheet 111 of the second embodiment has a shape as shown in fig. 7, and the valve sheet 111 includes a tapered portion 110 and a burring portion 206. The shape of the taper 110 may be referred to the description in the first embodiment, and the description is not repeated here. The flange portion 206 is annular, and the flange portion 206 is connected to the bottom end of the tapered portion 110. Fig. 8 and 9 show different states of the drainage device 100, respectively. As shown in fig. 8, the valve sheet 111 is in a closed state, the flange 206 is tightly attached to the bottom surface of the outer tube, the valve sheet 111 separates the inlet 107 and the outlet 112 of the flow passage 106, and the valve sheet 111 can prevent the odor and sewage in the drain pipe from flowing back into the room. As shown in fig. 9, the valve sheet 111 is in an open state, the flange 206 is spaced from the bottom surface of the outer tube, and the tapered portion 110 is also spaced from the inner circumferential surface of the outer tube, and at this time, the inlet 107 and the outlet 112 of the flow passage 106 communicate with each other. The dashed lines with arrows in fig. 9 indicate the flow path from the water, and after the water enters the flow passage 106 from the inlet 107, the force applied to the valve sheet 111 by the water causes the tapered portion 110 to collapse, thereby switching the valve sheet 111 from the closed state shown in fig. 8 to the open state shown in fig. 9. Similar to the first embodiment, the valve sheet 111 of the second embodiment is kept in a closed state under the elastic action of itself, and the elasticity of the valve sheet 111 can drive the valve sheet 111 to switch from an open state to a closed state.

As shown in fig. 10, the magnetic assembly 113 includes a first connection block 115 and a second connection block 114, the first connection block 115 is connected with the valve plate 111, the second connection block 114 is connected with the weight 207, and at least one of the first connection block 115 and the second connection block 114 has magnetism. The magnetic force applied to the first connection block 115 by the second connection block 114 serves to maintain the valve sheet 111 in the closed state and to switch the valve sheet 111 from the open state to the closed state. In the second embodiment, the second connection block 114 is provided on the inner side of the taper portion 110, the first connection block 115 is provided on the outer side of the second connection block 114, and the second connection block 114 and the first connection block 115 are provided so as to be mutually exclusive.

As shown in fig. 8, the weight 207 is sleeved outside the center post 202, and the weight 207 can slide up and down along the center post 202. Accordingly, the weight 207 can be lifted and lowered relative to the connection cylinder 201. The center post 202 and the connecting cylinder 201 are fixed to each other. Specifically, as shown in fig. 6, the connecting tube 201 includes a peripheral portion 203, a cross-bar portion 204, and a screw portion 205, the peripheral portion 203 being cylindrical, the cross-bar portion 204 being connected to the peripheral portion 203, the cross-bar portion 204 being further connected to the screw portion 205, the screw portion 205 being screw-connected to the center post 202. The top end of the valve sheet 111 is clamped with the center column 202.

As shown in fig. 8 and 9, the weight 207 slides up and down along the center post 202 as the valve sheet 111 opens and closes. When the cone 110 is folded by the force of the water applied to the valve plate 111, the balancing weight 207 will slide upwards when the valve plate 111 is switched from the closed state to the open state; after the water is drained, the balancing weight 207 slides downwards under the action of gravity of the balancing weight 207, the connecting rod assembly 208 is opened by the gravity of the balancing weight 207, when the valve plate 111 is switched from the open state to the closed state, and the valve plate 111 is kept in the closed state by the gravity of the balancing weight 207.

The drainage device 100 of the second embodiment keeps the sealing state of the valve sheet 111 together by the gravity of the balancing weight 207, the magnetic force of the magnetic attraction assembly 113 and the elasticity of the valve sheet 111, and compared with the prior art, the sealing effect of the valve sheet 111 is better, and the backflow preventing effect of the drainage device 100 is better.

As shown in fig. 8, the valve sheet 111 surrounds the weight 207, and the link assembly 208 includes a link 209 and a frame 210, the link 209 being connected to the weight 207, and the frame 210 being connected to the valve sheet 111. The end of the connecting rod 209 near the central axis 116 of the runner 106 is a connecting rod inner end 215, the end of the connecting rod 209 far away from the central axis 116 of the runner 106 is a connecting rod outer end 216, the connecting rod inner end 215 is rotationally connected with the balancing weight 207, and the connecting rod outer end 216 is rotationally connected with the framework 210. The link 209 is inclined relative to the vertical with the link inner end 215 being higher than the link outer end 216. As shown in fig. 11, a plurality of connecting rods 209 and skeletons 210 are provided, the plurality of connecting rods 209 are distributed at intervals along the circumferential direction of the weight 207, and the plurality of skeletons 210 are distributed at intervals along the circumferential direction of the weight 207.

Referring to fig. 8 and 9, since the connecting rod 209 and the frame 210 are disposed obliquely, when the drainage device 100 drains water, the fluid entering the flow channel 106 from the inlet 107 contacts the valve plate 111, so that a force applied by the connecting rod 209 to the weight 207 has a vertical component force, and the component force can drive the weight 207 to move upwards, so that the weight 207 will slide upwards during the process of switching the valve plate 111 to the open state. After the water is drained, the force applied by the water to the outer conical surface 119 of the conical portion 110 of the valve plate 111 disappears, and the weight 207 slides downward under the action of its own weight, accordingly, a horizontal component exists in the force applied by the connecting rod 209 to the skeleton 210, and the component can expand the valve plate 111 outwards to restore the closed state, and keep the valve plate 111 in the closed state.

The frame 210 may also be inclined so that the frame 210 matches the shape of the valve sheet 111. If the end of the backbone 210 near the central axis 116 is referred to as the backbone inner end 217 and the end of the backbone 210 remote from the central axis 116 is referred to as the backbone outer end 218, then the backbone inner end 217 is higher than the backbone outer end 218 and the backbone inner end 217 is higher than the link inner end 215, with the link outer end 216 being located between the backbone inner end 217 and the backbone outer end 218. As shown in fig. 7, a plurality of mounting grooves 211 are further formed on the inner side of the valve sheet 111, a part of the mounting grooves 211 is provided on the tapered portion 110, another part is provided on the burring 206, and the frame 210 may be mounted in the mounting grooves 211. The mounting groove 211 is advantageous in improving the convenience of assembly between the backbone 210 and the valve sheet 111.

The rotational connection between the link 209 and the weight 207 can be seen in fig. 11 and 12. As shown in fig. 11 and 12, the weight 207 includes an annular groove 213, the drainage device 100 further includes a connection ring 212, the connection ring 212 is disposed in the annular groove 213, the connection ring 212 is capable of passing through all the links 209, and the links 209 are capable of rotating with respect to the connection ring 212. The weight 207 further includes a plurality of longitudinal grooves 214, the plurality of longitudinal grooves 214 being spaced apart along the circumference of the weight 207, the longitudinal grooves 214 being staggered and in communication with the annular grooves 213. The longitudinal slot 214 is vertically through, and the link inner end 215 is slidable up and down in the longitudinal slot 214 so that the link inner end 215 moves to a position suitable for connection with the connection ring 212. The rotational connection between the connecting rod 209 and the weight 207 is realized by one connecting ring 212, which is beneficial to reducing the total number of parts of the drainage device 100 and improving the assembly convenience of the drainage device 100.

As shown in fig. 10, the first connection block 115 is embedded in the valve block 111, and the second connection block 114 is embedded in the counterweight 207. Since the first connection block 115 and the second connection block 114 are not exposed, the first connection block 115 and the second connection block 114 are not in direct contact with the fluid flowing through the drainage device 100, the magnetic force of the magnetic attraction assembly 113 is not easily affected, the first connection block 115 and the second connection block 114 are not easily separated and enter the drainage pipeline, and the service lives of the first connection block 115 and the second connection block 114 are longer.

As described above, the housing assembly 108 of the drainage device 100 of the second embodiment includes the body 101, the grate 102, the screen 104, the connecting cylinder 201, and the center post 202. In other embodiments, however, the housing assembly 108 may include only the connector barrel 201 and the center post 202. In the case where the housing assembly 108 includes only the connecting cylinder 201 and the center post 202, the center channel 220 of the connecting cylinder 201 is the flow passage 106 of the housing assembly 108.

Further, as shown in fig. 10, the second connection block 114 of the second embodiment is connected to a weight 207; however, in other embodiments, the second connection block 114 may be connected to the connection cylinder 201, where the second connection block 114 is disposed outside the first connection block 115, for example, the second connection block 114 is embedded in the peripheral portion 203 of the connection cylinder 201.

It should be noted that, although the drainage device 100 of the first embodiment and the second embodiment are both installed on the ground and used as a floor drain, the use of the drainage device 100 of the present utility model is not limited to the floor drain. For example, in other embodiments, the drain 100 may be installed in a pipe and act as a valve in the pipe. In the case where the drainage device 100 is installed in a pipe, the drainage device 100 may be vertically disposed, horizontally disposed, or obliquely disposed with respect to the vertical direction. The arrangement direction of the drainage device 100 is based on the direction of the central axis 116 of the flow channel 106, for example, when the drainage device 100 is horizontally arranged, it means that the central axis 116 of the flow channel 106 is horizontal, and when the drainage device 100 is vertically arranged, it means that the central axis 116 of the flow channel 106 is vertical.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (10)

1. Drainage device, its characterized in that includes:

The shell assembly is provided with a flow channel, and two ends of the flow channel are respectively provided with an inlet and an outlet;

A valve plate having elasticity, the valve plate being connected to the housing assembly, the valve plate having an open state and a closed state, the valve plate separating the inlet and the outlet when the valve plate is in the closed state; when the valve plate is in the open state, the inlet and the outlet are communicated with each other; the fluid entering the flow passage from the inlet can enable the valve plate to be switched from the closed state to the open state;

The magnetic assembly comprises a first connecting block and a second connecting block, at least one of the first connecting block and the second connecting block is magnetic, the first connecting block is connected with the valve plate, the second connecting block is connected with the shell assembly, and the magnetic force applied to the first connecting block by the second connecting block and the elasticity of the valve plate are used for keeping the valve plate in the closed state.

2. The drain according to claim 1, wherein the valve plate includes a cone portion located in the flow passage, one end of the cone portion being connected to the housing assembly, the other end of the cone portion being adapted to abut a wall surface of the flow passage to separate the inlet and the outlet;

The cone comprises an outer conical surface, a cavity is formed in the inner side of the cone, the outer conical surface is used for being in contact with fluid entering the flow channel from the inlet, the cavity wall of the cavity and the outer conical surface are arranged in a back-to-back mode, the outlet is arranged to the inlet, and the outer conical surface and the cavity wall are gradually folded towards the central axis of the flow channel.

3. The drainage device of claim 1 or 2, wherein the first connection block is located outside the second connection block, the second connection block and the first connection block being mutually exclusive;

Or the second connecting block is positioned on the outer side of the first connecting block, and the second connecting block and the first connecting block are mutually attracted.

4. The drain device of claim 1, wherein the housing assembly comprises:

The body is provided with the flow channel, the flow channel is vertically arranged, the top end of the flow channel is the inlet, and the bottom end of the flow channel is the outlet;

The grate is arranged at the inlet and is provided with a plurality of first through holes;

The filter screen is positioned below the grate and arranged in the flow channel, the filter screen is provided with a plurality of second through holes, the top end of the valve plate is connected with the filter screen, and the second connecting block is connected with the filter screen or the body.

5. The drain according to claim 1, further comprising a linkage assembly, the housing assembly comprising:

The connecting cylinder is provided with a central channel with two through ends, the central channel is at least one part of the flow channel, and at least one part of the valve plate is positioned in the central channel;

The balancing weight, the second connecting block connect in the balancing weight or the connecting cylinder, the balancing weight with the valve block all with link assembly is connected, the gravity of balancing weight is used for making the valve block keeps closed state.

6. The drainage device of claim 5, wherein a second connection block is connected to the weight, the first connection block is disposed outside the second connection block, and the second connection block and the first connection block are mutually exclusive;

Or the second connecting block is connected with the connecting cylinder, the second connecting block is arranged on the outer side of the first connecting block, and the second connecting block and the first connecting block are mutually attracted.

7. The drainage device of claim 5, wherein the first connection block is embedded in the valve plate, and the second connection block is embedded in the balancing weight.

8. The drainage device of claim 5, wherein the weight is liftable relative to the connecting cylinder, the valve sheet surrounds the weight, and the linkage assembly comprises:

The connecting rods are arranged in a plurality, the connecting rods are distributed at intervals along the circumferential direction of the balancing weight, one end of each connecting rod, which is close to the central axis of the runner, is a connecting rod inner end, one end of each connecting rod, which is far away from the central axis, is a connecting rod outer end, the connecting rod inner ends are rotationally connected with the balancing weight, and the connecting rod inner ends are higher than the connecting rod outer ends;

The framework is provided with a plurality of, and a plurality of the framework is followed the circumference interval distribution of balancing weight, every the connecting rod with one the framework is connected, the valve block connect in the framework, the connecting rod outer end with the framework rotates to be connected.

9. The drain according to claim 8, wherein the housing assembly further comprises a center post fixedly connected to the connecting cylinder, the center post being positioned in the center channel, the connecting cylinder and the center post being both vertically disposed;

The balancing weight is slidably sleeved outside the center column, the top end of the valve plate is connected with the center column, and the bottom end of the valve plate is used for being abutted with the connecting cylinder so as to separate the inlet from the outlet.

10. The drain device of claim 9, wherein the housing assembly further comprises:

The connecting cylinder is connected to the bottom end of the body, the connecting cylinder and the body jointly define the flow channel, the inlet is positioned at the top end of the body, and the outlet is positioned at the bottom end of the connecting cylinder;

The grate is arranged at the inlet and is provided with a plurality of first through holes;

the filter screen is arranged in the flow channel, is positioned below the grate and above the valve plate, and is provided with a plurality of second through holes.