CN220747170U - Floor drain with buoyancy opening structure - Google Patents

Abstract

The utility model relates to a floor drain with a buoyancy opening structure, which is characterized by comprising a floor drain body, a separation plate and a water float, wherein a water receiving tank is arranged on the floor drain body, a drain hole is arranged on the tank wall of the water receiving tank, a vertical guide groove is arranged on the floor drain body, the lower end of the vertical guide groove penetrates through the drain hole or the junction of the drain hole and the water receiving tank, the separation plate can be vertically and slidably embedded in the vertical guide groove, the separation plate can be blocked on the drain hole, and the water float is arranged in the water receiving tank and is connected with the separation plate. The floor drain can be convenient for discharging dirt cleanly, can greatly reduce accumulation and blockage of dirt, can greatly reduce the probability of entering the room of odor and mosquitoes in a sewer pipe without relying on a water seal, has very reliable deodorizing and insect preventing effects, can reduce the inconvenience of use, and is convenient to clean and maintain.

Description

Floor drain with buoyancy opening structure

Technical Field

The utility model relates to the field of drainage products, in particular to a floor drain with a buoyancy opening structure.

Background

At present, most floor drains realize the odor isolation function through a water seal structure, wherein the existing water seal structure is mostly U-shaped, namely, a U-shaped water flow channel is formed on the floor drain. When the floor drain is used, water can be reserved in the water seal structure, dirt is easy to remain in the water seal structure, and dirt accumulation on the channel wall of the water seal structure is easy to occur. Therefore, after the water seal structure is used for a period of time, the water seal structure is easy to block, and inconvenience is brought to people. When no water enters the U-shaped water flow channel for a long time, the reserved water can be dried up, the water sealing effect can be lost, and odor and mosquitoes in the sewer pipe can easily enter the room along the floor drain, so that the phenomena of no odor and no insect prevention can occur. Because the inside of the water seal structure is bent and is relatively narrow, the cleaning of the blockage is very inconvenient, which brings a lot of inconvenience to the maintenance of the floor drain. Therefore, it is necessary to redesign the structure of the floor drain.

Disclosure of Invention

The utility model aims to solve the problems and the defects, and provides the floor drain with the buoyancy opening structure, which can be used for conveniently discharging dirt cleanly, greatly reducing accumulation and blockage of dirt, and greatly reducing the probability of entering the odor and mosquitoes in a sewer pipe into a room without relying on a water seal.

The technical scheme of the utility model is realized as follows:

the floor drain with the buoyancy opening structure is characterized by comprising a floor drain body, a separation plate and a water floating piece, wherein a water receiving tank is arranged on the floor drain body, a drain hole is arranged on the tank wall of the water receiving tank, a vertical guide groove is arranged on the floor drain body, the lower end of the vertical guide groove penetrates through the drain hole or the junction of the drain hole and the water receiving tank, the separation plate can be vertically and slidably embedded in the vertical guide groove, the separation plate can be blocked on the drain hole, and the water floating piece is arranged in the water receiving tank and is connected with the separation plate.

Preferably, the floor drain body comprises a vertical cylinder body with a closed lower end and a positioning block, the positioning block is arranged at the bottom of an inner hole of the vertical cylinder body, the outer wall of the positioning block and the inner wall of the vertical cylinder body are enclosed together to form a water receiving tank, the water discharging hole is formed in the side wall of the positioning block, and the vertical guide groove is formed in the positioning block.

Preferably, the tank bottom of water receiving tank is provided with the cover, the inner wall of cover encloses with the cell wall of water receiving tank and closes and be formed with the inner chamber, locating piece and water float all are located the inner chamber, the limber hole that runs through to in the inner chamber is seted up to the lower extreme of cover, the lower extreme of cover still has seted up the apopore with the apopore butt joint intercommunication.

Preferably, the floor drain body is also provided with a vertical drawing rod penetrating through the isolation plate and the water floating piece, and the upper end of the vertical drawing rod is arranged outside the covering cover in a penetrating way.

Preferably, the cover comprises a partition plate and a shielding plate, wherein the partition plate is vertically arranged at the bottom of the water receiving tank and divides the lower end of the water receiving tank into a left part and a right part through the partition plate, the left end and the right end of the shielding plate are respectively connected with the upper end of the partition plate and the right tank wall of the water receiving tank, and the water through hole and the water down hole are formed in the lower end of the partition plate.

Preferably, the right surface of the partition plate is connected with the left end of the positioning block, the vertical guide groove is formed in the left end face of the positioning block, and the drain hole is formed in the left side wall of the positioning block.

Preferably, a reinforcing convex part is arranged on the right wall of the partition plate, the lower end of the reinforcing convex part is connected with the top of the positioning block, and the vertical guide groove vertically penetrates through the top surface of the reinforcing convex part.

Preferably, a hook part is arranged on the left lower wall of the shielding plate, a first limit convex part is arranged on the upper right wall of the partition plate, a second limit convex part is arranged on the right groove wall of the water receiving groove, a limit clamping groove is formed in the second limit convex part, the right end of the shielding plate is embedded in the limit clamping groove, the left end of the shielding plate is covered on the top surface of the partition plate, and the hook part is hung on the first limit convex part.

Preferably, the bottom of the left lower groove of the water receiving groove is a first inclined surface with high left and low right.

Preferably, the bottom surface of the isolation plate is a first contact inclined plane, one end of the first contact inclined plane, which is close to the water receiving groove, is high, and one end, which is far away from the water receiving groove, of the first contact inclined plane is low, a second contact inclined plane matched with the first contact inclined plane is arranged on the lower hole wall of the water discharging hole, and the first contact inclined plane is pressed on the second contact inclined plane.

The utility model has the beneficial effects that: in this floor drain, adopted vertical guide slot to remove restriction, guide the division board, the division board can reach the purpose of sealed wash port under the effect of self gravity like this, and this not only can guarantee division board installation location's stability and reliability, can also guarantee division board gliding accuracy to and can play very good deodorization, protection against insects effect, this can guarantee that this floor drain has very high reliability.

The water float is connected with the isolation board. The height position of the water float can be changed through the buoyancy of water, so that the water float can drive the isolation plate to move upwards, the aim of opening the drain hole can be achieved, the structure is quite reliable, the aim of stably opening the drain hole can be achieved, the drain hole can be prevented from being opened by mistake, and the floor drain can be guaranteed to have quite high reliability.

Meanwhile, after the structure is adopted, a bent and narrow water flow channel is not needed to be formed on the floor drain, dirt can be conveniently discharged on the floor drain, accumulation and blockage of the dirt can be greatly reduced, the floor drain does not depend on a water seal, the probability that odor and mosquitoes enter a room in a sewer pipe can be greatly reduced, the floor drain has very reliable deodorizing and insect preventing functions, the use inconvenience can be reduced, and the floor drain is not required to be cleaned and maintained frequently, so that the convenience of cleaning and maintenance is greatly improved.

Drawings

FIG. 1 is a schematic perspective view of a floor drain according to the present utility model.

FIG. 2 is a schematic diagram showing a floor drain according to a second embodiment of the present utility model.

Fig. 3 is a schematic diagram of a cross-sectional structure of the floor drain in the main view direction.

Fig. 4 is an enlarged schematic view of the portion a of fig. 3 according to the present utility model.

Fig. 5 is an enlarged schematic view of the portion B of fig. 3 according to the present utility model.

Fig. 6 is an enlarged schematic view of the portion C of fig. 3 according to the present utility model.

Fig. 7 is a schematic diagram of a cross-sectional structure of the floor drain in a three-dimensional state.

Fig. 8 is a schematic diagram of a split structure of the floor drain of the present utility model.

FIG. 9 is a schematic cross-sectional view of the floor drain body of the present utility model.

FIG. 10 is a second schematic cross-sectional view of the floor drain body according to the present utility model.

FIG. 11 is a schematic diagram showing the assembled state of the isolation plate and the water floating member in the present utility model.

Fig. 12 is a schematic structural view of the present utility model in a use state.

Detailed Description

As shown in fig. 1 to 3 and 7, the floor drain with the buoyancy opening structure comprises a floor drain body 1, a partition plate 2 and a water float 3, wherein a water receiving tank 11 is arranged on the floor drain body 1, a drain hole 12 is arranged on the tank wall of the water receiving tank 11, a vertical guide groove 13 is arranged on the floor drain body 1, the lower end of the vertical guide groove 13 penetrates through the drain hole 12 or the joint of the drain hole 12 and the water receiving tank 11, the partition plate 2 can be vertically and slidably embedded in the vertical guide groove 13, the partition plate 2 can be blocked on the drain hole 12, and the water float 3 is arranged in the water receiving tank 11 and is connected with the partition plate 2.

In the floor drain, the vertical guide groove 13 is adopted to limit and guide the isolation plate 2, so that the isolation plate 2 can achieve the purpose of closing the drain hole 12 under the action of self gravity, the stability and reliability of installation and positioning of the isolation plate 2 can be guaranteed, the sliding accuracy of the isolation plate 2 can be guaranteed, a good odor-isolation and insect-proof effect can be achieved, and the floor drain can be guaranteed to have high reliability.

By using the float 3, the float 3 is connected with the partition plate 2. The height position of the water float 3 can be changed through the buoyancy of water, so that the isolation plate 2 can be driven to move upwards through the water float 3, the purpose of opening the drain hole 12 can be achieved, the structure is quite reliable, the purpose of stably opening the drain hole 12 can be achieved, the drain hole 12 can be prevented from being opened by mistake, and the floor drain can be guaranteed to have quite high reliability.

Meanwhile, after the structure is adopted, a bent and narrow water flow channel is not needed to be formed on the floor drain, dirt can be conveniently discharged on the floor drain, accumulation and blockage of the dirt can be greatly reduced, the floor drain does not depend on a water seal, the probability that odor and mosquitoes enter a room in a sewer pipe can be greatly reduced, the floor drain has very reliable deodorizing and insect preventing functions, the use inconvenience can be reduced, and the floor drain is not required to be cleaned and maintained frequently, so that the convenience of cleaning and maintenance is greatly improved.

When the water rises, the water float 3 and the isolation plate 2 automatically rise to drain the water; when the water descends, the water floating piece 3 and the isolation plate 2 automatically descend, so that the deodorization and insect prevention effects are realized.

The isolation plate 2, the vertical guide groove 13 and the water float 3 form a buoyancy opening structure together, so that the water drain hole 12 can be opened through the buoyancy of water, and the actual use requirement can be well met.

When water is fed into the water receiving tank 11, water is firstly accumulated in the water receiving tank 11, and as the accumulated water amount increases, the water float 3 floats up and the height position of the water float 3 is increased; as the height of the water float 3 increases, the partition plate 2 is driven to move upward, which opens the drain hole 12, thereby achieving the purpose of draining water. When the water quantity is reduced, the isolation plate 2 can move downwards under the action of self gravity, so that the aim of closing the drain hole 12 can be fulfilled, and the requirements of deodorization and insect prevention can be greatly met. The floor drain can well meet the actual use requirement.

As shown in fig. 3 and fig. 8 to fig. 10, the floor drain body 1 includes a vertical cylinder 14 with a closed lower end, and a positioning block 15, the positioning block 15 is disposed at the bottom of an inner hole of the vertical cylinder 14, the outer wall of the positioning block 15 and the inner wall of the vertical cylinder 14 enclose together to form a water receiving tank 11, the water draining hole 12 is formed on the side wall of the positioning block 15, and the vertical guiding slot 13 is formed on the positioning block 15. The floor drain body 1 has a very simple and reliable structure, which is beneficial to the manufacture of the floor drain body 1, the arrangement of the vertical guide groove 13 and the buoyancy of the water float 3, and is beneficial to further improving the reliability of the floor drain.

As shown in fig. 1 to 3, the vertical cylinder 14 is a stepped cylinder with a large upper part and a small lower part, and the water receiving groove 11 has a wide notch and a narrow stepped hole at the lower end. Thus, the floor drain can well meet the actual use requirement.

As shown in fig. 3 and 8, the lower end of the vertical cylinder 14 is formed with a pressing slope 141 on the outer circumferential surface thereof, and the upper end of the pressing slope 141 is inclined in a direction away from the vertical center line of the vertical cylinder 14. Thus, when the vertical cylinder 14 is embedded, the tightness of the embedding connection between the vertical cylinder 14 and the sewage drain pipe can be enhanced, and the stability and reliability of the installation and positioning of the floor drain can be conveniently improved.

As shown in fig. 3 and fig. 7 to fig. 9, the bottom of the water receiving tank 11 is provided with a cover 16, an inner cavity 160 is formed by enclosing the inner wall of the cover 16 and the wall of the water receiving tank 11, the positioning block 15 and the water float 3 are both positioned in the inner cavity 160, the lower end of the cover 16 is provided with a water through hole 161 penetrating into the inner cavity 160, and the lower end of the cover 16 is also provided with a water drain hole 162 in butt joint communication with the water drain hole 12. Through the setting of covering cap 16, can play the effect of shielding locating piece 15 and water float 3 to avoid rivers and filth direct action to water float 3 on, so not only can make water float 3 play the effect that drives division board 2 better, can also greatly reduced filth to water float 3's influence, thereby help further improving the reliability of this floor drain. The water through holes 161 can ensure that water can enter the inner cavity 160 and can play a role in blocking dirt, so that large dirt can be prevented from entering the inner cavity 160, and further the water float 3 and the isolation plate 2 can be prevented from being influenced by the dirt.

As shown in fig. 3, 7 and 12, the floor drain body 1 is further provided with a vertical drawing rod 4 penetrating through the isolation plate 2 and the water float 3, and the upper end of the vertical drawing rod 4 is arranged to extend out of the cover 16. Like this, appear sticking dirt on division board 2 and/or vertical guide slot 13, when influencing the upper and lower free motion of division board 2, can drive division board 2 through the vertical pull rod 4 of pull and do vertical fast movement, reach the purpose of getting rid of the dirt to avoid division board 2's vertical activity to receive this influence. And thus, dirt on the partition plate 2, the vertical guide groove 13 can be cleaned without opening the cover 16, which contributes to improvement of convenience of cleaning and maintenance.

As shown in fig. 3, 7 and 12, a hand grip 5 is provided on the upper end of the vertical pulling rod 4. The hand-pinching part 5 has a spherical structure. The utility model has the advantages of convenient hand pinching, convenient use, convenient production and reduced dirt adhesion. Through holes 100 with the aperture larger than the cross section diameter of the vertical drawing rod 4 are arranged between the isolation plate 2 and the water floating piece 3, so that the vertical drawing rod 4 is sleeved on the through holes 100, the isolation plate 2 and the water floating piece 3 can move up and down freely, the isolation plate is not blocked by the vertical drawing rod 4, and meanwhile, the vertical drawing rod 4 plays a certain guiding role. A limiting head 41 is also arranged at the bottom end of the vertical drawing rod 4, and the limiting head 41 can be a nut screwed on the bottom end of the vertical drawing rod 4. The diameter of the limit head 41 is larger than the aperture of the through hole 100 so that the partition plate 2 and the water float 3 can be lifted up when the vertical drawing rod 4 is lifted up. When the vertical pull rod 4 is put down, the dead weight of the vertical pull rod 4, the dead weight of the isolation plate 2 and the water float 3 are utilized to reset downwards. Furthermore, the bottom surface of the water float 3 can be further provided with a concave cavity groove 30 for being hidden by matching with the limiting head 41, so that the occupation of the vertical height space is reduced.

As shown in fig. 3 and 7 to 9, the cover 16 includes a partition plate 163 and a shielding plate 164, the partition plate 163 is vertically disposed at the bottom of the water receiving tank 11, and the lower end of the water receiving tank 11 is divided into two parts by the partition plate 163, the left and right ends of the shielding plate 164 are respectively connected with the upper end of the partition plate 163 and the right tank wall of the water receiving tank 11, and the water through hole 161 and the water down hole 162 are both opened at the lower end of the partition plate 163. The cover 16 is of a very simple and reliable construction, which is not only easy to manufacture, but also has a very good covering and separating effect, so that it is ensured that the floor drain has a very high reliability.

As shown in fig. 3 and 7, the upper end of the vertical pulling rod 4 is extended above the top surface of the shielding plate 164. This can facilitate the drawing of the vertical drawing rod 4, thereby improving the convenience of use.

As shown in fig. 3 and 8 to 10, the right surface of the partition plate 163 is connected to the left end of the positioning block 15, the vertical guide groove 13 is formed on the left end surface of the positioning block 15, and the drain hole 12 is formed on the left side wall of the positioning block 15. This allows the dividing plate 163 to participate in the limiting and guiding of the dividing plate 2, thus helping to improve the stability and accuracy of the vertical movement of the dividing plate 2, which helps to further improve the reliability of the floor drain.

As shown in fig. 3 and 10, the partition 163 is disposed vertically. This allows the divider plate 163 to be well spaced and guided.

As shown in fig. 7 to 10, the water passing holes 161 are mesh holes. Thus, the floor drain can play a very good role in water passing, so that the floor drain can be well opened by buoyancy.

As shown in fig. 8 and 10, the two sets of water holes 161 are provided, and the two sets of water holes 161 are provided on the lower end of the partition plate 163 in parallel, and the two sets of water holes 161 are respectively communicated with the front and rear inner cavities 160 of the positioning block 15. This accelerates the rate of water entering the cavity 160, thereby facilitating rapid functioning of the float 3 and thus providing a very good drainage.

As shown in fig. 2, 3, 8 and 9, the water inlet of the drain hole 12 is located on the left side wall of the positioning block 15, and the water outlet of the drain hole 12 is located on the bottom surface of the floor drain body 1, so that water can be conveniently drained.

As shown in fig. 3, 9 and 10, the right wall of the partition plate 163 is provided with a reinforcing protrusion 165, the lower end of the reinforcing protrusion 165 is connected to the top of the positioning block 15, and the vertical guide groove 13 vertically penetrates the top surface of the reinforcing protrusion 165. Thus, the structural strength of the installation part of the isolation plate 2 can be further enhanced, and the assembly amount of the isolation plate 2 and the vertical guide groove 13 can be increased, so that the sliding stability and accuracy of the isolation plate 2 can be further improved, and the reliability of the floor drain can be further improved.

As shown in fig. 3 to 5, a hook portion 1641 is provided on the left lower wall of the shielding plate 164, a first limit protrusion 1631 is provided on the upper right wall of the partition plate 163, a second limit protrusion 110 is provided on the right wall of the water receiving tank 11, a limit clamping groove 1101 is provided on the second limit protrusion 110, the right end of the shielding plate 164 is embedded in the limit clamping groove 1101, the left end of the shielding plate 164 is covered on the top surface of the partition plate 163, and the hook portion 1641 is hung on the first limit protrusion 1631. This not only can be convenient for the installation location of shielding plate 164, can also guarantee the stability and the reliability of shielding plate 164 installation location to and can make things convenient for the dismantlement of shielding plate 164, thereby can conveniently play to overhaul, change water float 3, division board 2, and can conveniently clean inner chamber 160, and then can be convenient for guarantee buoyancy open the long-term performance that keeps good of structure, this reliability and the suitability that helps further improving this floor drain.

As shown in fig. 1 and 7, the front and rear ends of the shielding plate 164 are respectively pressed against the front and rear groove walls of the water receiving groove 11. This provides a very good coverage to reduce the chance of dirt directly entering the cavity 160, and thus to avoid the buoyancy opening mechanism from being affected during long use.

As shown in fig. 5, the second limiting protrusion 110 is formed by two protruding strips 1102 arranged side by side from top to bottom, and a limiting groove 1101 is formed between the two protruding strips 1102, so that the second limiting protrusion 110 can be formed with high reliability.

As shown in fig. 3, 7 and 9, the shielding plate 164 is disposed in an inclined manner with a lower left end and a higher right end. This can act to move the dirt and dust downwards to avoid that dirt and dust remains on the shield 164, which can help to further improve the applicability of the floor drain.

As shown in fig. 3, 7 and 9, the bottom of the left lower groove of the water receiving groove 11 is a first inclined surface 111 with a high left and a low right. Thus, the drain hole 12 can guide sewage and dirt to avoid residual sewage and dirt at the bottom of the water receiving tank 11, thereby ensuring the floor drain to have very high reliability.

As shown in fig. 9, the bottom of the right lower groove of the water receiving groove 11 is a second inclined surface 112 having a high right side and a low left side. This facilitates the discharge of the sewage and fine dirt entering the inner chamber 160, thereby greatly reducing the residue of the dirt in the inner chamber 160 and further avoiding the influence of the dirt on the use of the water float 3 and the partition plate 2.

As shown in fig. 10, the top surface of the positioning block 15 is a guiding inclined surface 151 with a tapered vertical section. Thus, the sewage and fine dirt can be guided to avoid residual sewage and dirt on the top surface of the positioning block 15.

As shown in fig. 3 and 9, the drain hole 162 is located at the lower end of the guide slope 151. Thus, the water can be guided well, and the water can be drained well.

As shown in fig. 3, 6, 9 and 10, the bottom surface of the partition plate 2 is a first contact inclined surface 21, and one end of the first contact inclined surface 21 close to the water receiving groove 11 is high, and one end of the first contact inclined surface far away from the water receiving groove 11 is low, a second contact inclined surface 121 matched with the first contact inclined surface 21 is formed on the lower hole wall of the water discharging hole 12, and the first contact inclined surface 21 is pressed on the second contact inclined surface 121. This can act to strengthen the sealing of the lower end of the separator 2, preventing lifting, thus helping to strengthen the air tightness of the floor drain, which helps to further improve the reliability of the floor drain.

As shown in fig. 3, 7 and 11, the water float 3 is a float block or a float ball. The float 3 thus provides a good buoyancy, so that a very high reliability of the floor drain can be ensured.

The water float 3 is of a foam structure. This ensures that the float 3 has a very good buoyancy.

As shown in fig. 3, 7 and 11, the water float 3 may be directly disposed on the upper end of the isolation board 2, or may drive the isolation board 2 to move upward through a traction member. This can well meet the demands of practical use.

The shape of the water float 3 can be made into the same structure as the shape of the cavity bottom of the inner cavity 160, and when the isolation plate 2 is in the closed state, the water float 3 is close to the cavity bottom of the inner cavity 160. Thus, a small amount of water can act on the water float 3, so that the water float 3 can better play a role of driving the isolation plate 2, and the requirement of actual use can be better met.

As shown in fig. 12, during use, water entering the water receiving tank 11 enters the inner cavity 160 through the water passage hole 161. When the water reaches a certain height, the water float 3 floats, so that the isolation plate 2 can be driven to move upwards by the water float 3, and the drain hole 12 can be opened. The water can then be drained through the drain hole 162 and the drain hole 12 in order, which can satisfy the drainage requirement. When the water entering the water receiving tank 11 is reduced, the water level in the inner cavity 160 is lowered, and the water float 3 is lowered, so that the partition board 2 can move downwards under the gravity action of the water float 3 and the self gravity action of the partition board 2, thereby meeting the requirement of closing the water discharge hole 12. The floor drain can well meet the actual use requirements.

Claims (10)

1. Floor drain with buoyancy opening structure, its characterized in that: including floor drain body (1), division board (2), water float (3), wherein offered water receiving tank (11) on floor drain body (1), offer wash port (12) on the cell wall of water receiving tank (11), vertical guide slot (13) have been offered on floor drain body (1) to make the lower extreme of vertical guide slot (13) run through to the butt joint department of wash port (12) or wash port (12) and water receiving tank (11), division board (2) can vertically slide and inlay in vertical guide slot (13) to make division board (2) can shelter from on wash port (12), water float (3) are arranged in water receiving tank (11), and make water float (3) and division board (2) meet.

2. Floor drain with buoyancy opening structure according to claim 1, characterized in that: the floor drain body (1) comprises a vertical cylinder body (14) with a closed lower end and a positioning block (15), the positioning block (15) is arranged at the bottom of an inner hole of the vertical cylinder body (14), the outer wall of the positioning block (15) and the inner wall of the vertical cylinder body (14) are jointly enclosed to form a water receiving tank (11), the water draining hole (12) is formed in the side wall of the positioning block (15), and the vertical guide groove (13) is formed in the positioning block (15).

3. Floor drain with buoyancy opening structure according to claim 2, characterized in that: the tank bottom of water receiving tank (11) is provided with cover (16), the inner wall of cover (16) encloses with the cell wall of water receiving tank (11) and closes and be formed with inner chamber (160), locating piece (15) and water float (3) all are located inner chamber (160), water through hole (161) that run through to in inner chamber (160) are seted up to the lower extreme of cover (16), still set up lower water hole (162) with drain hole (12) butt joint intercommunication of cover (16).

4. A floor drain with a buoyancy opening structure according to claim 3, wherein: the floor drain body (1) is also provided with a vertical drawing rod (4) penetrating through the isolation plate (2) and the water floating piece (3), and the upper end of the vertical drawing rod (4) is arranged outside the covering cover (16) in a penetrating way.

5. A floor drain with a buoyancy opening structure according to claim 3, wherein: the cover (16) comprises a separation plate (163) and a shielding plate (164), the separation plate (163) is vertically arranged at the bottom of the water receiving tank (11) and separates the lower end of the water receiving tank (11) into a left part and a right part through the separation plate (163), the left end and the right end of the shielding plate (164) are respectively connected with the upper end of the separation plate (163) and the right tank wall of the water receiving tank (11), and the water through holes (161) and the water down holes (162) are all formed in the lower end of the separation plate (163).

6. Floor drain with buoyancy opening structure according to claim 5, characterized in that: the right surface of division board (163) meets with the left end of locating piece (15), vertical guide slot (13) are seted up on the left end face of locating piece (15), wash port (12) are seted up on the left side wall of locating piece (15).

7. Floor drain with buoyancy opening structure according to claim 6, characterized in that: the right wall of the division plate (163) is provided with a reinforcing convex part (165), the lower end of the reinforcing convex part (165) is connected with the top of the positioning block (15), and the vertical guide groove (13) vertically penetrates through the top surface of the reinforcing convex part (165).

8. Floor drain with buoyancy opening structure according to claim 5, characterized in that: the left lower wall of shielding plate (164) is provided with couple portion (1641), be provided with first spacing convex part (1631) on the upper right wall of division board (163), be provided with second spacing convex part (110) on the right cell wall of water receiving tank (11), spacing draw-in groove (1101) have been seted up on second spacing convex part (110), the right-hand member of shielding plate (164) inlays in spacing draw-in groove (1101), the left end of shielding plate (164) covers on the top surface of division board (163) to make couple portion (1641) hang and install on first spacing convex part (1631).

9. Floor drain with buoyancy opening structure according to claim 5, characterized in that: the bottom of the left lower groove of the water receiving groove (11) is a first inclined surface (111) with high left and low right.

10. Floor drain with buoyancy opening structure according to claim 1, characterized in that: the bottom surface of division board (2) is first contact inclined plane (21) to make the one end that first contact inclined plane (21) is close to water receiving tank (11) high, keep away from water receiving tank (11) one end low, set up on the lower pore wall of wash port (12) with first contact inclined plane (21) assorted second contact inclined plane (121), first contact inclined plane (21) are pressed on second contact inclined plane (121).