An embedded anti-odor exhaust device

Abstract

The present invention provides a pre-embedded odor-proof exhaust device, which belongs to the field of pipeline connection technology. It solves the problem that existing embedded parts are not good at odor prevention. The pre-embedded odor-proof exhaust device includes a cylindrical embedded body, the upper end of the embedded body is detachably connected to a cover plate, the cover plate has a through water hole, the embedded body has a partition plate that divides the inner cavity of the embedded body into a water drop chamber and an exhaust chamber, the water drop chamber is connected to the upper and lower ends of the embedded body, and the water drop chamber is provided with an odor-proof structure to prevent odor from overflowing. The partition plate has a partition that separates the upper end of the embedded body from the exhaust chamber, the lower end of the exhaust chamber is connected to the lower end of the embedded body, and the side of the embedded body has an exhaust port connected to the exhaust chamber. The present invention has the advantages of compact structure, easy installation and arrangement, and the ability to prevent odor backflow.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline connection, relates to a pre-buried device, and particularly relates to a pre-buried deodorizing exhaust device. Background Art

[0002] Currently, sewage pipes are installed in kitchens and toilets. These pipes have a U-shaped bend structure. Its purpose is to store some water at the bottom of the U to prevent odor from overflowing or mosquito breeding. However, the U-shaped bend requires a long pipe diameter, which is not convenient for installation and layout. In addition, odor will still flow back and emanate from the mouth of the sewage pipe, affecting the use effect.

[0003] Chinese patent literature discloses a new type of same-floor horizontal drainage pre-buried system [application number: 202020213997.X; authorization announcement number: CN212053036U], which includes a water pipe connecting seat, a main connecting pipe, an intermediate connecting pipe, a side downpipe and a floor drain connecting pipe. The main connecting pipe is buckled on the water pipe connecting seat, one end of the intermediate connecting pipe is movably connected to the main connecting pipe, the side end buckle of the intermediate connecting pipe has at least one side downpipe, the floor drain connecting pipe is buckled on the upper end side of the side downpipe, and a rotatable baffle assembly is provided in the middle position of the intermediate connecting pipe, and the baffle assembly can be detachably fixed to the intermediate connecting pipe.

[0004] In the above-mentioned new type of same-floor flat drainage pre-buried system, the leakage connecting pipes in various places are connected to the main connecting pipe through the side sewer pipes and the middle connecting pipe. Although a baffle assembly is set in the middle connecting pipe to achieve the effect of overflow and mosquito prevention, the baffle assembly cannot completely isolate the odor of the sewer. The odor that cannot be discharged will cause the leakage connecting pipes in various places to emit a foul odor, affecting the user experience. It occupies a large volume and is not convenient for installation and layout.

[0005] Chinese patent literature also discloses a balcony embedded floor drain [application number: 201822140923.3; authorization announcement number: CN209891344U], which includes a cylinder and a floor drain panel arranged on the cylinder, a floor drain cover is arranged in the middle of the floor drain panel, the bottom of the cylinder is connected to the top of the floor drain pipe, the bottom of the floor drain pipe is a sealed structure, and embedded drainage pipes are arranged vertically side by side on the side of the floor drain pipe, and the embedded drainage pipe and the floor drain pipe are an integrated structure, a water outlet is provided between the floor drain pipe and the inside of the embedded drainage pipe, and a water inlet and a drain outlet are provided at the top and bottom of the embedded drainage pipe respectively.

[0006] When the above-mentioned balcony pre-buried floor drain is in use, water enters the pre-buried drainage pipe from the water outlet for drainage. In order to prevent odor, a middle partition is provided in the floor drain pipe to form a water seal. However, like the above-mentioned new same-floor flat drainage pre-buried system and other drainage pipes, the designer has inertial thinking and believes that setting a baffle or water seal can play a role in preventing odor. However, in actual use, the odor in the sewer will still rise and flow back and cannot be discharged. When draining, the odor is emitted from the floor drain or the water inlet, affecting the user experience. Summary of the Invention

[0007] The purpose of the present invention is to address the above-mentioned problems existing in the prior art and to provide a pre-buried odor-proof exhaust device which has a compact structure, is easy to install and arrange, and can prevent odor backflow.

[0008] The objectives of the present invention can be achieved through the following technical solutions: a pre-buried odor-proof exhaust device, comprising a cylindrical embedded body, characterized in that the upper end of the embedded body is detachably connected to a cover plate, the cover plate has a through water hole, the embedded body has a partition plate that divides the inner cavity of the embedded body into a water drop cavity and an exhaust cavity, the water drop cavity is connected to the upper and lower ends of the embedded body, the water drop cavity is provided with an odor-proof structure to prevent odor from overflowing, the partition plate has a partition portion that separates the upper end of the embedded body and the exhaust cavity, the lower end of the exhaust cavity is connected to the lower end of the embedded body, and the side of the embedded body has an exhaust port connected to the exhaust cavity.

[0009] In the above-mentioned pre-buried odor-proof exhaust device, the partition plate, the partition part and the pre-buried body are an integrated structure.

[0010] In the above-mentioned pre-buried odor-proof exhaust device, the side portion of the pre-buried body has an exhaust pipe that protrudes radially outward and is connected to the exhaust port.

[0011] In the above-mentioned pre-buried odor-proof exhaust device, the exhaust pipe and the pre-buried body are an integrated structure.

[0012] In the above-mentioned pre-buried odor-proof exhaust device, the odor-proof structure includes an inward-folded flange on the lower end wall of the embedded body on the side of the water cavity, and the inner edge of the flange has an inward-folded retaining edge. Both ends of the flange and the retaining edge are connected to the partition plate as a whole. The partition plate is detachably connected to a baffle located in the water cavity, and the baffle has a shielding portion that shields the area above the area enclosed by the retaining edge and the partition plate. The baffle also has an insertion portion inserted between the inner wall of the embedded body and the retaining edge. Water passages are provided between the insertion portion and the inner wall of the embedded body, between the insertion portion and the flange, between the insertion portion and the retaining edge, and between the shielding portion and the retaining edge.

[0013] In the above-mentioned pre-buried odor-proof exhaust device, the baffle has a connecting part 1 covering the top of the partition, and the connecting part 1 is connected to the shielding part through the connecting part 2 that fits the partition plate. The shielding part has a plurality of reinforcing ribs connected to the connecting part 2 as a whole.

[0014] In the above-mentioned pre-buried odor-proof exhaust device, the surface of the baffle and / or the inner wall of the water cavity has a hydrophobic coating.

[0015] As another case, in the above-mentioned pre-buried odor-proof exhaust device, the odor-proof structure includes a hinged plate hinged to the top of the partition plate through a hinge shaft, the inner wall of the water cavity has a radially outward-convex retaining ring, and a torsion spring is sleeved on the hinge shaft. One end of the torsion spring acts on the partition plate, and the other end of the torsion spring acts on the bottom of the hinged plate. The torsion spring provides elastic force to make the hinged plate horizontal and always have a tendency to resist the retaining ring. The edge of the hinged plate is embedded with a sealing strip sealed to the inner wall of the water cavity.

[0016] In the above-mentioned pre-buried odor-proof exhaust device, the lower end of the pre-buried body has a quick-connect structure for connecting a sewage pipe.

[0017] In the above-mentioned pre-buried odor-proof exhaust device, the quick-connect structure includes an arc-shaped groove formed at the lower end of the pre-buried body outside the exhaust cavity, and the wall edge of the pre-buried body in the water cavity has an outwardly protruding convex ring.

[0018] In the above-mentioned pre-buried deodorizing and exhaust device, the lower end of the pre-buried body has an outwardly protruding connecting block, and the connecting block is used to be connected to the sewage pipe through bolts.

[0019] Compared with the existing technology, the pre-buried odor-proof exhaust device has a compact structure, a small overall volume, is easy to install and arrange, and is easy to connect. It has an exhaust function, can prevent odor backflow, and has an ideal use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural cross-sectional view of the pre-buried deodorizing exhaust device.

[0021] Figure 2 This is a structural sectional view of the pre-buried odor-proof exhaust device.

[0022] Figure 3 It is a structural cross-sectional view of the embedded body in the embedded odor-proof exhaust device.

[0023] Figure 4 It is a top view of the structure of the embedded body in the embedded odor-proof exhaust device.

[0024] Figure 5 It is a structural bottom view of the embedded body in the embedded odor-proof exhaust device.

[0025] Figure 6 This is a structural cross-sectional view of the baffle in the pre-buried odor-proof exhaust device.

[0026] Figure 7 This is a top view of the structure of the baffle in this pre-buried odor-proof exhaust device.

[0027] Figure 8 This is a structural bottom view of the baffle in the pre-buried odor-proof exhaust device.

[0028] Figure 9 This is a structural cross-sectional view of the pre-buried odor-proof exhaust device in Example 2.

[0029] In the figure, 1. embedded body; 2. cover plate; 3. downspout cavity; 4. exhaust cavity; 5. partition plate; 6. partition part; 7. exhaust port; 8. exhaust pipe; 9. flange; 10. rib; 11. baffle; 12. shielding part; 13. insertion part; 14. connection part 1; 15. connection part 2; 16. reinforcing rib; 17. hinge shaft; 18. hinge plate; 19. retaining ring; 20. torsion spring; 21. sealing strip; 22. arc groove; 23. convex ring; 24. connection block. DETAILED DESCRIPTION

[0030] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0031] Example 1

[0032] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the pre-embedded odor-proof exhaust device includes a cylindrical embedded body 1, and the upper end of the embedded body 1 is detachably connected to a cover plate 2. In this embodiment, the cover plate 2 is connected to the external thread of the outer wall of the upper end of the embedded body 1 through an internal thread to achieve a detachable connection. During actual manufacturing, the cover plate 2 can be buckled with the embedded body 1 through an existing snap-fit structure, or the cover plate 2 is sleeved on the upper end of the embedded body 1, and a clamp is sleeved on the outside of the cover plate 2 so that the cover plate 2 is locked to the embedded body 1; the cover plate 2 has a through water hole, and the embedded body 1 has a partition plate 5 that divides the inner cavity of the embedded body 1 into a water cavity 3 and an exhaust cavity 4. The water cavity 3 is connected to the upper and lower ends of the embedded body 1, and the water cavity 3 is provided with an odor-proof structure to prevent odor from overflowing. The partition plate 5 has a partition part 6 that separates the upper end of the embedded body 1 and the exhaust cavity 4. The lower end of the exhaust cavity 4 is connected to the lower end of the embedded body 1, and the side of the embedded body 1 has an exhaust port 7 connected to the exhaust cavity 4.

[0033] The present pre-buried odor-proof exhaust device is provided with an odor-proof structure and a partition plate 5 inside the pre-buried body 1, which has a compact structure and a small overall volume, and is easy to install and arrange. When in use, the water hole of the cover plate 2 is provided for the installation and connection of a floor drain or a drain pipe, the lower end of the pre-buried body 1 is connected to the sewage pipe, and the exhaust port 7 is connected to the existing exhaust pipe 8 (in order to exhaust smoothly, shopping malls, factories, and houses will install exhaust fans in the exhaust pipe 8). The exhaust hole is provided on the side of the pre-buried body 1, breaking through the conventional design, and there is no problem of interference in pipeline installation, which is convenient for connecting the exhaust pipe 8. Water from the floor drain or the drainage pipe enters the water cavity 3 and directly enters the sewage pipe from the lower end of the pre-buried body 1. The water falls quickly, and the odor emitted from the sewage pipe is blocked by the odor-proof structure. Due to the pressure difference, the odor will enter the exhaust cavity 4 and then enter the exhaust pipe 8 from the exhaust port 7 to be exhausted, thereby preventing the odor from flowing back to the water cavity 3 and ensuring an ideal use effect.

[0034] In further detail, the partition plate 5, partition portion 6, and embedded body 1 are integrally formed. This facilitates manufacturing, provides high structural strength, and offers a long service life. The embedded body 1 has a radially outwardly protruding exhaust pipe 8 on its side, which communicates with the exhaust port 7. This facilitates pipe connection. During actual manufacturing, the outer wall of the exhaust pipe 8 is provided with external threads, an inverted pyramid-shaped bead 23, or several annular grooves to enhance connection convenience and robustness. In this embodiment, the outer wall of the exhaust pipe 8 has annular grooves. The integral structure of the exhaust pipe 8 and embedded body 1 is compact, easy to manufacture, and provides high structural strength.

[0035] like Figure 1 As shown, the odor-proof structure in this embodiment includes an inward-folded flange 9 on the lower end wall of the embedded body 1 on the side of the water cavity 3, and the inner edge of the flange 9 has an inward-folded retaining edge 10. Both ends of the flange 9 and the retaining edge 10 are connected to the partition plate 5 as a whole. The partition plate 5 is detachably connected to a baffle 11 located in the water cavity 3 by screws. During actual manufacturing, the partition plate 5 can be provided with a socket, and the baffle 11 has an insert block inserted into the socket to achieve a detachable connection between the baffle 11 and the partition 6; the baffle 11 has a shielding portion 12 that shields the area above the retaining edge 10 and the partition plate 5. The baffle 11 also has an insertion portion 13 inserted between the inner wall of the embedded body 1 and the retaining edge 10. There are water passages between the insertion portion 13 and the inner wall of the embedded body 1, between the insertion portion 13 and the flange 9, between the insertion portion 13 and the retaining edge 10, and between the shielding portion 12 and the retaining edge 10. During use, water entering the drainage cavity 3 is blocked by the shielding portion 12 and enters between the inner wall of the embedded body 1 and the retaining edge 10. When the water level exceeds the edge of the retaining edge 10, the water flows into between the baffle 11 and the partition plate 5 and is discharged from the sewage pipe. The area surrounded by the inner wall of the embedded body 1, the flange 9 and the retaining edge 10 always has water. The insertion portion 13 is inserted into the water to form a water seal, thereby achieving an odor-proof effect.

[0036] like Figure 6 、 Figure 7 and Figure 8 As shown, the baffle 11 has a connecting portion 14 covering the top of the partition 6, the connecting portion 14 is connected to the shielding portion 12 through a connecting portion 15 that fits the partition plate 5, and the shielding portion 12 has a plurality of reinforcing ribs 16 that are connected to the connecting portion 15 as a whole. In this embodiment, the number of reinforcing ribs 16 is two and both are triangular plate-shaped. In this way, the structural strength of the baffle 11 is high, the ability to resist water impact is good, and the service life is long. The reinforcing ribs 16 play a diversion role, which is convenient for falling into the water; the surface of the baffle 11 and / or Or the inner wall of the water cavity 3 has a hydrophobic coating, which is formed by coating with an existing hydrophobic coating, thus forming a lotus leaf effect, and the falling water will not remain on the baffle 11 and / or the surface of the water cavity 3. The water falls quickly, and the falling water falling on the surface of the baffle 11 and / or the water cavity 3 will form balls to take away the dirt on the surface of the baffle 11 and / or the water cavity 3, thereby achieving the purpose of self-cleaning, enhancing the deodorizing effect, and having a long service life. In this embodiment, the surface of the baffle 11 and the inner wall of the water cavity 3 both have a hydrophobic coating.

[0037] The lower end of the embedded body 1 has a quick-connect structure for connecting to the sewage pipe, which facilitates the connection between the embedded body 1 and the sewage pipe and is easy to operate. The quick-connect structure includes an arcuate groove 22 provided on the lower end of the embedded body 1 outside the exhaust chamber 4, and an outwardly protruding bead 23 along the wall of the embedded body 1 in the water cavity 3. In this embodiment, the bead 23 is located at the top of the retaining edge 10. When the lower end of the embedded body 1 is connected to the sewage pipe, half of the end of the sewage pipe is inserted into the arcuate groove 22, and the other half is inserted into the water cavity 3 and is supported by the bead 23, thereby achieving a quick connection between the embedded body 1 and the sewage pipe, which is convenient to connect. The lower end of the embedded body 1 has an outwardly protruding connecting block 24. In this embodiment, there are two connecting blocks 24 and they are symmetrically arranged. The connecting block 24 is used to connect to the sewage pipe by bolts, which ensures a stable connection and a long service life.

[0038] The lower end of the embedded body 1 is provided with a weight-reducing groove located outside the exhaust cavity 4, which reduces the overall weight and achieves the purpose of saving materials.

[0039] Example 2

[0040] like Figure 9As shown, the structure and principle of this embodiment are basically the same as those of embodiment 1. The difference is that the deodorizing structure in this embodiment includes a hinged plate 18 hinged to the top of the partition plate 5 through a hinge shaft 17, the inner wall of the drain chamber 3 has a radially outwardly protruding retaining ring 19, and a torsion spring 20 is sleeved on the hinge shaft 17. One end of the torsion spring 20 acts on the partition plate 5, and the other end of the torsion spring 20 acts on the bottom of the hinged plate 18. The torsion spring 20 provides elastic force to make the hinged plate 18 horizontal and always have a tendency to contact the retaining ring 19. The edge of the hinged plate 18 is embedded with a sealing strip 21 sealed to the inner wall of the drain chamber 3. When not in the water, the torsion spring 20 causes the hinge plate 18 to contact the retaining ring 19. The edge of the hinge plate 18 abuts the inner wall of the drain chamber 3, and the sealing strip 21 acts as a seal, preventing odor from overflowing from the drain chamber 3 and being discharged through the exhaust chamber 4 and exhaust port 7. When in the water, when the gravity of the water exceeds the elastic force of the torsion spring 20, the water pushes open the hinge plate 18 and enters the drain chamber 3, then flows into the sewage pipe from the lower end of the embedded body 1. Of course, in actual manufacturing, to ensure a better seal, a rubber strip can be embedded on the top of the hinge plate 18. When not in the water, the rubber strip abuts against the partition plate 5 to provide a seal.

[0041] Matters not described in detail in this specification constitute prior art known to those skilled in the art. The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A pre-buried odor-proof exhaust device, comprising a cylindrical pre-buried body (1), characterized in that: The lower end of the embedded body (1) has an outwardly protruding connection block (24), and the connection block (24) is used to connect to the sewage pipe through bolts. The upper end of the embedded body (1) is detachably connected to a cover plate (2), and the cover plate (2) has a through water hole. The embedded body (1) has a partition plate (5) that divides the inner cavity of the embedded body (1) into a water cavity (3) and an exhaust cavity (4). The water cavity (3) is connected to the upper and lower ends of the embedded body (1). The water cavity (3) is provided with an anti-odor structure to prevent odor from overflowing. The partition plate (5) has There is a partition (6) separating the upper end of the embedded body (1) and the exhaust cavity (4), the lower end of the exhaust cavity (4) is connected to the lower end of the embedded body (1), and the side of the embedded body (1) has an exhaust port (7) connected to the exhaust cavity (4). The deodorizing structure includes an inwardly folded flange (9) along the lower end wall of the embedded body (1) on the side of the water cavity (3), and the inner edge of the flange (9) has an inwardly folded retaining edge (10). Both ends of the flange (9) and the retaining edge (10) are connected to the partition plate (5) as a whole, and the partition plate (5) is detachable. The baffle (11) is connected to the ground and is located in the water cavity (3). The baffle (11) has a shielding portion (12) that shields the area above the area surrounded by the retaining edge (10) and the partition plate (5). The baffle (11) also has an inserting portion (13) inserted between the inner wall of the embedded body (1) and the retaining edge (10). There are water passages between the inserting portion (13) and the inner wall of the embedded body (1), between the inserting portion (13) and the flange (9), between the inserting portion (13) and the retaining edge (10), and between the shielding portion (12) and the retaining edge (10). Alternatively, the deodorizing structure includes a hinged portion. The hinge plate (18) is hingedly connected to the connecting shaft (17) at the top of the partition plate (5), and the inner wall of the water cavity (3) has a radially outwardly protruding retaining ring (19). A torsion spring (20) is sleeved on the hinge shaft (17), one end of the torsion spring (20) acts on the partition plate (5), and the other end of the torsion spring (20) acts on the bottom of the hinge plate (18). The torsion spring (20) provides elastic force to make the hinge plate (18) horizontal and always have a tendency to contact the retaining ring (19). The edge of the hinge plate (18) is embedded with a sealing strip (21) that seals the inner wall of the water cavity (3).

2. A pre-buried deodorizing exhaust device according to claim 1, characterized in that: The partition plate (5), the partition portion (6) and the embedded body (1) are an integrated structure.

3. The pre-buried deodorizing exhaust device according to claim 2, characterized in that: The side portion of the embedded body (1) has an exhaust pipe (8) that protrudes radially outward and is connected to the exhaust port (7).

4. The pre-buried deodorizing exhaust device according to claim 3, characterized in that: The exhaust pipe (8) and the embedded body (1) are an integrated structure.

5. The pre-buried deodorizing exhaust device according to claim 1, characterized in that: The baffle (11) has a connecting portion (14) covering the upper portion of the partition (6), and the connecting portion (14) is connected to the shielding portion (12) through the connecting portion (15) attached to the partition plate (5). The shielding portion (12) has a plurality of reinforcing ribs (16) connected to the connecting portion (15) as a whole.

6. The pre-buried deodorizing exhaust device according to claim 5, characterized in that: The surface of the baffle (11) and / or the inner wall of the water drop chamber (3) has a hydrophobic coating.

7. A pre-buried deodorizing exhaust device according to any one of claims 1 to 6, characterized in that: The lower end of the embedded body (1) has a quick-connect structure for connecting a sewage pipe.

8. The pre-buried deodorizing exhaust device according to claim 7, characterized in that: The quick-connect structure includes an arc-shaped groove (22) provided at the lower end of the embedded body (1) outside the exhaust cavity (4), and the wall edge of the embedded body (1) in the water cavity (3) has an outwardly protruding convex ring (23).

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