Shifting tee joint

Abstract

The utility model discloses a shifting tee joint which comprises a tee joint body. The tee joint body comprises a cylinder part, three water inlet pipes and a drainage pipe, an access hole is formed in the upper end of the cylinder part, the three water inlet pipes are fixedly connected to the cylinder part in the circumferential direction of the water inlet pipes, and the drainage pipe is fixedly connected to the lower end of the cylinder part; the shifting tee joint further comprises a cover and three anti-reversing mechanisms, the cover covers the access hole, the three anti-reversing mechanisms are in one-to-one correspondence with the three water inlet pipes, and the anti-reversing mechanisms are arranged at the ends, close to the cylinder part, of the corresponding water inlet pipes; the anti-reverse mechanism comprises a sleeve and an anti-reverse plate, the sleeve is inserted into the water inlet pipe and detachably connected with the water inlet pipe, the outer wall of the sleeve is attached to the inner wall of the water inlet pipe, the anti-reverse plate covers the inner end of the sleeve, and the upper side of the anti-reverse plate is hinged to the upper side of the sleeve. The utility model provides a shifting tee joint with an anti-reversing function.

Description

Technical Field

[0001] The utility model relates to the technical field of shifters, in particular to a shift tee. Background Art

[0002] The existing shifter has a patent application number of CN2015210291431, which includes a shifter access section, a shifter outlet section, and a flat tube. The two ends of the flat tube are respectively connected to the shifter access section and the shifter outlet section. The upper end of the shifter access section is provided with an input port for connecting to a household sewage source, and the lower end of the shifter outlet is provided with an output port connected to a sewage standpipe. The sewage source outputs sewage, and the sewage is discharged into the sewage standpipe after passing through the input port, the flat tube, and the output port.

[0003] The existing displacer outlet section has no anti-reverse function. When sewage flows up the drainage riser, the sewage will flow back to the household through the displacer outlet section and the flat pipe. Utility Model Content

[0004] In order to solve the defect that the existing displacer outlet section has no anti-reverse function, the utility model provides a displaced tee with an anti-reverse function, which can prevent sewage from flowing back.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A displacement tee comprises a tee body; the tee body comprises a cylindrical portion, three water inlet pipes and a drain pipe, an inspection port is arranged at the upper end of the cylindrical portion, the three water inlet pipes are fixedly connected to the cylindrical portion around the circumference of the water inlet pipe, and the drain pipe is fixedly connected to the lower end of the cylindrical portion; the displacement tee also comprises a cover and three anti-reverse mechanisms, the cover is arranged on the inspection port, the three anti-reverse mechanisms correspond to the three water inlet pipes one by one, and the anti-reverse mechanisms are arranged at one end of the corresponding water inlet pipe close to the cylindrical portion; the anti-reverse mechanism comprises a sleeve and an anti-reverse plate, the sleeve is inserted into the water inlet pipe and is detachably connected to the water inlet pipe, the outer wall of the sleeve is fitted with the inner wall of the water inlet pipe, the anti-reverse plate cover is arranged at the inner end of the sleeve, and the upper side of the anti-reverse plate is hinged to the upper side of the sleeve.

[0007] Through the above arrangement, when sewage rises in the sewage riser, the anti-backflow mechanism can prevent the sewage from flowing back; when blockage occurs in the water inlet pipe, the anti-backflow mechanism can be removed from the water inlet pipe to facilitate unblocking the water inlet pipe.

[0008] Furthermore, the anti-rebound mechanism also includes two connecting plates and a rotating shaft. The connecting plates are fixedly connected to the upper side of the sleeve. The upper edge of the anti-rebound plate is located between the two connecting plates. The rotating shaft transversely passes through the upper edge of the anti-rebound plate and the connecting plates. The anti-rebound plate can rotate around the axis of the rotating shaft.

[0009] Through the above arrangement, the anti-rebound plate is hinged through the rotating shaft and the upper side of the connecting plate and the sleeve.

[0010] Furthermore, the cross section of the water inlet pipe is an ellipse with the major axis extending in the horizontal direction.

[0011] Through the above arrangement, it is convenient to connect the water inlet pipe and the flat pipe.

[0012] Furthermore, one end of the water inlet pipe close to the cylindrical portion is inclined downward, and the angle between the extending direction of the water inlet pipe and the horizontal plane is 2-5°.

[0013] The above arrangement facilitates the discharge of sewage and prevents sewage from accumulating in the water inlet pipe.

[0014] Furthermore, the outer end of the sleeve is provided with a chamfer along the circumferential direction, and the inner wall of the water inlet pipe transitions to the inner wall of the sleeve through the chamfer.

[0015] Through the above arrangement, dirt is not likely to remain on the outer end of the sleeve.

[0016] Furthermore, the shift tee also includes a bushing and an annular limit clamp, the bushing is adapted to the inspection port and is threaded in the inspection port; a boss that can support the lower side of the cover is arranged along the inner circumference of the bushing, the cover is arranged in the bushing and contacts the upper side of the boss; the lower side of the bushing is fixedly connected with an annular limit clamp along the circumferential direction; the anti-rebound mechanism also includes a fixed block fixedly connected to the upper side of the bushing, a groove adapted to the annular limit clamp is arranged on the upper side of the fixed block, the fixed block contacts the inner wall of the cylindrical part, and the annular limit clamp is embedded in the groove.

[0017] Through the above arrangement, the annular limit clamp can lock the sleeve on the water inlet pipe; after removing the bushing, the sleeve can be directly taken out from the water inlet pipe, which is convenient for unblocking the water inlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of a displacement tee according to an embodiment.

[0019] Figure 2 It is a cross-sectional view of a displacement tee according to an embodiment.

[0020] Figure 3 for Figure 2 Enlarged view of point A. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0022] See also Figures 1 to 3A displacement tee includes a tee body 2; the tee body 2 includes a cylindrical portion 21, three water inlet pipes 22, and a drain pipe 23; an inspection port 211 is provided at the upper end of the cylindrical portion 21; the three water inlet pipes 22 are fixedly connected to the cylindrical portion 21 around the circumference of the water inlet pipe 22; the drain pipe 23 is fixedly connected to the lower end of the cylindrical portion 21; the displacement tee also includes a cover 3 and three anti-reverse mechanisms 4; the cover 3 is provided on the inspection port 211, The three anti-rebound mechanisms 4 correspond to the three water inlet pipes 22 one by one, and the anti-rebound mechanism 4 is arranged at one end of the corresponding water inlet pipe 22 close to the cylindrical portion 21; the anti-rebound mechanism 4 includes a sleeve 41 and an anti-rebound plate 42, the sleeve 41 is inserted into the water inlet pipe 22 and is detachably connected to the water inlet pipe 22, the outer wall of the sleeve 41 is fitted with the inner wall of the water inlet pipe 22, the anti-rebound plate 42 cover is arranged at the inner end of the sleeve 41, and the upper side of the anti-rebound plate 42 is hinged to the upper side of the sleeve 41.

[0023] Through the above arrangement, when sewage rises in the sewage riser, the anti-backflow mechanism 4 can prevent the sewage from flowing back; when blockage occurs in the water inlet pipe 22, the anti-backflow mechanism 4 can be removed from the water inlet pipe 22 to facilitate unblocking the water inlet pipe 22.

[0024] Specifically, the tee body 2 is an integral injection molding structure; the inner diameter of the cylindrical portion 21 is larger than the inner diameter of the drain pipe 23, so that the internal maintenance of the shifted tee is convenient through the inspection port 211; when in use, the lower end of the drain pipe 23 is connected to the sewage standpipe, the water inlet pipe 22 is connected to the flat pipe, and the other end of the flat pipe is connected to the household sewage outlet, such as a flush toilet; when the sewage outlet discharges sewage, the sewage passes through the flat pipe, the water inlet pipe 22, the anti-reverse mechanism 4, the cylindrical portion 21, and the drain pipe 23 to output the sewage to the sewage standpipe; when the sewage passes through the anti-reverse mechanism 4, the sewage pushes the anti-reverse plate 42 away, and the anti-reverse plate 4 2 is rotated upward; after the sewage is discharged, the anti-reflection plate 42 sags under the action of gravity and re-covers the inner end of the water inlet pipe 22; when sewage flows up to the cylindrical part 21 in the sewage standpipe, the anti-reflection plate 42 is pressed against the water inlet pipe 22 under the action of water pressure to prevent the sewage from flowing back to the household sewage outlet through the water inlet pipe 22; when the water inlet pipe 22 is blocked, the cover 3 can be taken out from the inspection port 211, and then the sleeve 41 can be removed from the water inlet pipe 22, so that tools can enter the water inlet pipe 22 to dredge the water inlet pipe 22. After the dredging is completed, the sleeve 41 is re-installed into the water inlet pipe 22.

[0025] As an implementation method, the anti-rebound mechanism 4 also includes two connecting plates 43 and a rotating shaft 44. The connecting plates 43 are fixedly connected to the upper side of the sleeve 41. The upper edge of the anti-rebound plate 42 is located between the two connecting plates 43. The rotating shaft 44 transversely passes through the upper edge of the anti-rebound plate 42 and the connecting plates 43. The anti-rebound plate 42 can rotate around the axis of the rotating shaft 44.

[0026] Through the above arrangement, the anti-reflection plate 42 is hinged to the upper side of the sleeve 41 through the rotating shaft 44 and the connecting plate 43 .

[0027] As an implementation manner, the cross section of the water inlet pipe 22 is an ellipse with the major axis extending in the horizontal direction.

[0028] The above arrangement facilitates the connection between the water inlet pipe 22 and the flat pipe.

[0029] In reality, after the shifter is installed, concrete needs to be poured on the flat tube to cover it. Compared with the round tube, the flat tube is smaller in height, which can reduce the amount of concrete used.

[0030] As an implementation method, one end of the water inlet pipe 22 close to the cylindrical portion 21 is inclined downward, and the angle between the extension direction of the water inlet pipe 22 and the horizontal plane is 2-5°.

[0031] The above arrangement facilitates the discharge of sewage and prevents sewage from accumulating in the water inlet pipe 22 .

[0032] As an implementation method, a chamfer 411 is provided at the outer end of the sleeve 41 along the circumferential direction, and the inner wall of the water inlet pipe 22 transitions to the inner wall of the sleeve 41 through the chamfer 411 .

[0033] Through the above arrangement, dirt is not likely to remain on the outer end of the sleeve 41.

[0034] As an implementation method, the shift tee also includes a bushing 5 and an annular limit clamp 6, the bushing 5 is adapted to the inspection port 211 and is threadedly connected in the inspection port 211; a boss 51 that can support the lower side of the cover 3 is arranged along the inner circumference of the bushing 5, the cover 3 is arranged in the bushing 5 and contacts the upper side of the boss 51; the lower side of the bushing 5 is fixedly connected with the annular limit clamp 6 along the circumferential direction; the anti-rebound mechanism 4 also includes a fixed block 45 fixedly connected to the upper side of the bushing 5, the upper side of the fixed block 45 is provided with a groove 451 adapted to the annular limit clamp 6, the fixed block 45 contacts the inner wall of the cylindrical portion 21, and the annular limit clamp 6 is embedded in the groove 451.

[0035] Through the above arrangement, the annular limit clamp 6 can lock the sleeve 41 on the water inlet pipe 22; after removing the bushing 5, the sleeve 41 can be directly taken out from the water inlet pipe 22, which is convenient for clearing the water inlet pipe 22.

[0036] The bushing 5 and the cover 3 are adapted, and the cover 3 can be covered on the bushing 5. The upper side of the cover 3 is flush with the upper side of the bushing 5. A rubber ring can be set on the edge of the cover 3 to improve the air tightness. During general inspection, the cover 3 can be directly taken out from the bushing 5, and the interior of the cylindrical part 21 can be checked by a flashlight. When it is necessary to inspect and dredge the interior of the shift tee, the bushing 5 is directly rotated to take the bushing 5 out of the inspection port 211, and the annular limit clamp 6 is lifted up and removed. Open the card slot 451, and the sleeve 41 can move along the water inlet pipe 22 into the cylindrical part 21. When the sleeve 41 leaves the water inlet pipe 22, the anti-reverse mechanism 4 is removed from the water inlet pipe 22, and the tool can directly enter the water inlet pipe 22 to dredge the water inlet pipe 22; after the dredging is completed, the sleeve 41 is re-installed into the water inlet pipe 22. When the fixing block 45 contacts the inner wall of the cylindrical part 21, the bushing 5 is re-installed into the inspection port 211, and the annular limit clamp 6 is embedded in the card slot 451.

[0037] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A displacement tee, characterized in that: Including a three-way body; The three-way body includes a cylindrical portion, three water inlet pipes and a drain pipe, the upper end of the cylindrical portion is provided with an inspection port, the three water inlet pipes are fixedly connected to the cylindrical portion around the circumference of the water inlet pipe, and the drain pipe is fixedly connected to the lower end of the cylindrical portion; The shift tee also includes a cover and three anti-reverse mechanisms, the cover is arranged on the inspection port, the three anti-reverse mechanisms correspond to the three water inlet pipes one by one, and the anti-reverse mechanism is arranged at one end of the corresponding water inlet pipe close to the cylindrical part; The anti-reverse mechanism includes a sleeve and an anti-reverse plate. The sleeve is inserted into the water inlet pipe and is detachably connected to the water inlet pipe. The outer wall of the sleeve fits the inner wall of the water inlet pipe. The anti-reverse plate cover is arranged at the inner end of the sleeve, and the upper side of the anti-reverse plate is hinged to the upper side of the sleeve.

2. A displacement tee according to claim 1, characterized in that: The anti-rebound mechanism also includes two connecting plates and a rotating shaft. The connecting plates are fixedly connected to the upper side of the sleeve. The upper edge of the anti-rebound plate is located between the two connecting plates. The rotating shaft transversely passes through the upper edge of the anti-rebound plate and the connecting plates. The anti-rebound plate can rotate around the axis of the rotating shaft.

3. A displacement tee according to claim 1, characterized in that: The cross section of the water inlet pipe is an ellipse with the major axis extending in the horizontal direction.

4. The displacement tee according to claim 1, characterized in that: One end of the water inlet pipe close to the cylindrical portion is inclined downward, and the angle between the extending direction of the water inlet pipe and the horizontal plane is 2-5°.

5. The displacement tee according to claim 1, characterized in that: The outer end of the sleeve is provided with a chamfer along the circumferential direction, and the inner wall of the water inlet pipe transitions to the inner wall of the sleeve through the chamfer.

6. A displacement tee according to claim 2, characterized in that: The displacement tee also includes a bushing and an annular limit clamp, the bushing is adapted to the inspection port and is threadedly connected in the inspection port; a boss that can support the lower side of the cover is arranged along the inner circumference of the bushing, the cover is arranged in the bushing and contacts the upper side of the boss; the lower side of the bushing is fixedly connected with the annular limit clamp along the circumferential direction; The anti-reverse mechanism also includes a fixed block fixedly connected to the upper side of the bushing, and the upper side of the fixed block is provided with a groove adapted to the annular limit clamp. The fixed block contacts the inner wall of the cylindrical part, and the annular limit clamp is embedded in the groove.

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