Submersible sewage pump outlet pipe connecting joint and method of use thereof

Abstract

The application provides a submersible sewage pump outlet pipe connecting joint, which comprises a male joint and a female joint connected through threads, the movable end of the male joint is connected to the sewage pump outlet pipe through threads, the butt joint ends of the male joint and the female joint are both provided with sealing rings, the female joint is provided with a threaded gland for threadedly connecting the male joint and pressing the female joint, the movable end of the female joint is provided with a first flow pipe for connecting a water hose, the inner side of the other end of the threaded gland is provided with an annular protrusion for pressing the water hose, and a clamping structure is arranged between the annular protrusion and the first flow pipe. The application has the effect of improving the sealing performance and firmness of the water hose mounted on the sewage pump outlet pipe.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline sealing joint, in particular to a submersible sewage pump water outlet pipe connecting joint and a using method thereof. BACKGROUND

[0002] At present, when the submersible sewage pump water outlet pipe connects the water hose, a pipe clamp or a wire is mostly used to bind the water hose, and the sealing performance is poor. In addition, during the starting and stopping of the water pump, the pipe clamp or the wire is not firmly bound, or when the water flow fluctuates, the water hose is easily detached, and needs to be fixed again. If the drainage well or the drainage area is deep in water, or when the sewage is pumped, the personnel secondary fixation of the water hose has certain safety hazards or installation inconvenience. SUMMARY

[0003] In view of the deficiencies in the prior art, the present application provides a submersible sewage pump water outlet pipe connecting joint and a using method thereof, which solves the problem of poor sealing and easy detachment of the water hose of the sewage pump water outlet pipe connection in the prior art.

[0004] According to an embodiment of the present application, a submersible sewage pump water outlet pipe connecting joint comprises a male joint and a female joint connected by threads, the movable end of the male joint is connected to the sewage pump water outlet pipe by threads, the abutting ends of the male joint and the female joint are both provided with sealing rings, the female joint is provided with a threaded gland for threadedly connecting the male joint and pressing the female joint, the movable end of the female joint is provided with a first flow pipe for connecting the water hose, the inner side of the other end of the threaded gland is provided with an annular protrusion for pressing the water hose, and an engagement structure is arranged between the annular protrusion and the first flow pipe.

[0005] Preferably, the opposite end walls of the male joint and the female joint are respectively provided with a connecting block and a clamping groove, the connecting block is L-shaped, the clamping groove is annular and coaxially arranged with the female joint, an arc-shaped plate is arranged in the clamping groove, and the spacing between the arc-shaped plate and the inner bottom wall of the clamping groove is equal to the thickness of the movable end of the connecting block.

[0006] Preferably, the opposite side walls of the male joint and the female joint are respectively coaxially fixedly provided with a first sealing ring and a second sealing ring, the inner diameters of the first sealing ring and the second sealing ring are equal, and the second sealing ring is located on the inner side of the clamping groove.

[0007] Preferably, an external thread is arranged on the outer side wall of the male joint, an internal thread is arranged on the end of the threaded gland close to the female joint, and the threaded gland and the male joint are fixedly connected through the internal thread and the external thread.

[0008] Preferably, the male joint side wall is coaxially fixedly connected with a connecting pipe, the inner side of the movable end of the connecting pipe is provided with a pump connecting thread, and the pump connecting thread is connected with the outer thread of the end of the sewage pump outlet pipe.

[0009] Preferably, the occlusion structure comprises annular pipe sawteeth arranged on the movable end of the first flow pipe and annular gland sawteeth arranged on the inner side wall of the threaded gland, the pipe sawteeth are continuously arranged along the axial direction of the first flow pipe, the gland sawteeth are continuously arranged along the axial direction of the threaded gland, and the pipe sawteeth and the gland sawteeth can occlude each other.

[0010] Preferably, the pipe diameter of the first flow pipe decreases from the fixed end to the movable end.

[0011] Preferably, the outer peripheral surface of the female joint is fixedly connected with an annular wedge-shaped connecting ring, the outer wall of the wedge-shaped connecting ring is attached to the inner wall of the threaded gland, the bottom of the threaded gland is connected with an inner sealing ring, and the inner diameter of the inner sealing ring is greater than the inner diameter of the wedge-shaped connecting ring.

[0012] Preferably, the wedge-shaped connecting ring is provided with an inwardly recessed annular surface on the side wall close to the inner sealing ring.

[0013] A use method of a sewage submersible sewage pump outlet pipe connecting joint, comprising the following steps: S, the end of the male joint is connected on the end of the sewage pump outlet pipe through a thread, the female joint is threadedly connected on the male joint, the sealing rings at the opposite ends of the male joint and the female joint are butted; S, the hose is sleeved on the first flow pipe of the female joint, and then the threaded gland is tightened, the female joint is pushed through the end wall of the threaded gland, the hose is pressed on the first flow pipe through the threaded gland, the female joint and the male joint are firmly butted, the sealing rings are tightly combined, the occlusion structure is used to occlude the threaded gland and the first flow pipe, and the threaded gland and the first flow pipe are occluded; S, when the hose connected to the female joint is "stuck", the pump can be stopped for a short time, the hose is not under pressure, the threaded gland is slightly loosened, and then the female joint is rotated, so that the whole hose is not pulled up and the hose is adjusted.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] 1. The sealing rings are arranged between the male joint and the female joint, and the female joint is pressed tightly through the threaded gland, so that the male joint and the female joint are firmly connected.

[0016] 2. An interlocking structure is provided at the contact point between the threaded gland and the water hose. The interlocking structure clamps the water hose pressed on the threaded gland, ensuring good sealing and firmness between the water hose and the first flow channel.

[0017] 3. The inner sealing ring set at the bottom of the threaded gland seals the inside of the female connector. When water flows through, the water pushes the female connector, causing the wedge-shaped connecting ring on the female connector to squeeze the inner sealing ring. The greater the water flow, the better the sealing effect. Attached Figure Description

[0018] Figure 1 This is a side view of the male connector in an embodiment of the present invention.

[0019] Figure 2 This is a front view of the internal structure of the male connector in an embodiment of the present invention.

[0020] Figure 3 This is a side view of the female connector in an embodiment of the present invention.

[0021] Figure 4 This is a front view of the internal structure of the female connector in an embodiment of the present invention.

[0022] In the above attached figures: 1. Male connector; 2. Connecting pipe; 3. Pump connection thread; 4. First sealing ring; 5. Connecting external thread; 6. Connecting block; 7. Female connector; 8. Second sealing ring; 9. Groove; 10. Wedge-shaped connecting ring; 11. Threaded gland; 12. Inner sealing ring; 13. Connecting internal thread; 14. First flow passage pipe; 15. Pipe serrations; 16. Gland serrations; 17. Second flow passage pipe. Detailed Implementation

[0023] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1-4 As shown, to achieve stable installation of the hose connected to the outlet pipe of a submersible sewage pump and improve the sealing of the interface, this invention proposes a submersible sewage pump outlet pipe connection joint, including a male connector 1 and a female connector 7 connected by threads. The movable end of the male connector 1 is threaded to the sewage pump outlet pipe. Both the mating ends of the male connector 1 and the female connector 7 are provided with sealing rings. The female connector 7 is fitted with a threaded cap 11 for threaded connection of the male connector 1 and for pressing the female connector 7. The movable end of the female connector 7 is provided with a first flow channel 14 for connecting the hose. The inner side of the other end of the threaded cap 11 is provided with an annular protrusion for pressing the hose. An interlocking structure is provided between the annular protrusion and the first flow channel 14.

[0025] The die is used on the water outlet pipe of the sewage pump, and the outer thread is processed. The inner thread is processed on the inner wall of the pipe of one end of the male joint 1. The male joint 1 is connected with the sewage pump outlet pipe through the thread, and the raw material belt is wound around the joint when necessary, so as to improve the sealing and firmness of the joint. The female joint 7 is connected to the male joint 1, and the female joint 7 is abutted on the male joint 1 through the threaded gland 11. The threaded gland 11 is tubular, and the annular protrusion is arranged on the inner wall of one end. The female joint 7 is extruded through the annular protrusion.

[0026] As shown in Figures 1-4 , in order to further improve the firmness of the connection between the male joint 1 and the female joint 7. The opposite end walls of the male joint 1 and the female joint 7 are respectively provided with a connecting block 6 and a clamping groove 9. The connecting block 6 is L-shaped, and the clamping groove 9 is annular and coaxially arranged with the female joint 7. An arc-shaped plate is arranged in the clamping groove 9. The spacing between the arc-shaped plate and the inner bottom wall of the clamping groove 9 is equal to the thickness of the movable end of the connecting block 6. Before the male joint 1 and the female joint 7 are connected, the connecting block 6 at the end of the male joint 1 is inserted into the clamping groove 9, and then the female joint 7 is rotated, so that the vertical section of the connecting block 6 moves to the inner side of the arc-shaped plate. At this time, the inner side wall of the vertical section of the connecting block 6 is attached to the inner wall of the arc-shaped plate, and the outer side wall is attached to the inner bottom wall of the clamping groove 9, so as to realize the fixed limiting of the male joint 1 and the female joint 7 in the axial direction.

[0027] As shown in Figure 2 and Figure 4 , in order to realize the installation and close connection of the sealing ring between the male joint 1 and the female joint 7. The opposite side walls of the male joint 1 and the female joint 7 are respectively coaxially fixedly provided with a first sealing ring 4 and a second sealing ring 8. The inner diameters of the first sealing ring 4 and the second sealing ring 8 are equal, and the second sealing ring 8 is located on the inner side of the clamping groove 9. When the opposite end walls of the male joint 1 and the female joint 7 abut, the opposite end walls of the first sealing ring 4 and the second sealing ring 8 abut and extrude, so as to realize sealing.

[0028] As shown in Figure 2 and Figure 4 , in order to realize the threaded connection between the threaded gland 11 and the male joint 1. The outer side wall of the male joint 1 is provided with a joint connecting outer thread 5. The end of the threaded gland 11 close to the female joint 7 is provided with a joint connecting inner thread 13. The threaded gland 11 and the male joint 1 are fixedly connected through the joint connecting inner thread 13 and the joint connecting outer thread 5. The joint connecting outer thread 5 and the joint connecting inner thread 13 are used for the connection between the threaded gland 11 and the male joint 1. During the rotation of the threaded gland 11, the annular protrusion at the other end of the threaded gland 11 pushes the movable end of the female joint 7, and extrudes the female joint 7, so that the opposite end walls of the female joint 7 and the male joint 1 are closely attached.

[0029] As shown in Figure 2As shown, to achieve a tight connection between the male connector 1 and the sewage pump outlet pipe, a connecting pipe 2 is coaxially fixedly connected to the side wall of the male connector 1. A pump connection thread 3 is provided on the inner side of the movable end of the connecting pipe 2, and it is connected to the external thread at the end of the sewage pump outlet pipe via the pump connection thread 3. A second flow pipe 17 is coaxially fixedly connected to the inner wall of the connecting pipe 2, with both ends of the second flow pipe 17 fixedly connected to the inner walls of the male connector 1 and the connecting pipe 2, respectively. The pump connection thread 3 connects to the external thread at the end of the sewage pump outlet pipe. After the male connector 1 is connected, sewage flows through the second flow pipe 17. The inner wall of the second flow pipe 17 is smooth and covers the joint between the connecting pipe 2 and the male connector 1, improving sealing.

[0030] like Figure 4 As shown, to improve the stability of hose installation, the interlocking structure includes annular pipe teeth 15 on the movable end of the first flow pipe 14 and annular gland teeth 16 on the inner wall of the threaded gland 11. The pipe teeth 15 are continuously arranged along the axial direction of the first flow pipe 14, and the gland teeth 16 are continuously arranged along the axial direction of the threaded gland 11. The pipe teeth 15 and the gland teeth 16 can interlock with each other. By fitting the end of the hose onto the first flow pipe 14 and then rotating the threaded gland 11, the annular protrusion of the threaded gland 11 squeezes the first flow pipe 14, and the hose is clamped in the middle by the interlocking between the pipe teeth 15 and the gland teeth 16, increasing the contact area. Furthermore, the small gap between the teeth provides stable clamping of the hose.

[0031] like Figure 4 As shown, to further improve the stability of the hose installation, the diameter of the first flow pipe 14 decreases from the fixed end to the movable end. During the continuous rotation of the threaded cap 11, the first flow pipe 14 clamps more tightly with the annular protrusion on the inner side of the threaded cap 11, resulting in a tighter engagement of the pipe teeth 15 and the cap teeth 16 with the hose.

[0032] like Figure 4 As shown, to improve the sealing between the threaded gland 11 and the female connector 7, an annular wedge-shaped connecting ring 10 is fixedly connected to the outer circumferential surface of the female connector 7. The outer wall of the wedge-shaped connecting ring 10 fits against the inner wall of the threaded gland 11. An inner sealing ring 12 is connected to the bottom of the threaded gland 11, and the inner diameter of the inner sealing ring 12 is larger than the inner diameter of the wedge-shaped connecting ring 10. During the process of rotating the threaded gland 11 to connect the male connector 1, the wedge-shaped connecting ring 10 contacts the inner sealing ring 12 and squeezes the inner sealing ring 12, so that the inner sealing ring 12 is located at the joint between the threaded gland 11 and the female connector 7, thereby achieving a seal between the threaded gland 11 and the female connector 7.

[0033] like Figure 4The wedge-shaped connecting ring 10 is provided with an inwardly recessed annular surface on the side wall close to the inner sealing ring 12. The inner sealing ring 12 is gradually extruded by the wedge-shaped connecting ring 10, so that the inner sealing ring 12 is gradually deformed and adheres to the annular surface of the wedge-shaped connecting ring 10, thereby improving the sealing effect.

[0034] The use method of the submersible sewage pump outlet pipe connecting joint comprises the following steps: S1, the end of the male joint 1 is connected on the end of the sewage pump outlet pipe through thread connection, the female joint 7 is connected on the male joint 1 through thread connection, and the sealing rings at the opposite ends of the male joint 1 and the female joint 7 are butted; S2, the hose is sleeved on the first flow pipe 14 of the female joint 7, and then the threaded gland 11 is tightened, the female joint 7 is pushed through the end wall of the threaded gland 11, the hose is pressed on the first flow pipe 14 through the threaded gland 11, the female joint 7 is firmly butted with the male joint 1, the sealing rings are tightly combined, the threaded gland 11 and the first flow pipe 14 are engaged through the engagement structure, and the threaded gland 11 and the first flow pipe 14 are engaged; S3, when the hose connected on the female joint 7 is "screwed", the pump can be stopped for a short time, the hose is not under pressure, the threaded gland 11 is slightly loosened, then the female joint 7 is rotated, the whole hose does not need to be pulled up, and the hose is adjusted.

Claims

1. A submersible sewage pump outlet pipe connection joint, comprising a male joint (1) and a female joint (7) connected by threads, the movable end of the male joint (1) being connected by threads on the sewage pump outlet pipe, characterized in that: The sealing ring is arranged on the butt joint end of the male connector (1) and the female connector (7), the threaded gland (11) is sleeved on the female connector (7) and is used for threadedly connecting the male connector (1) and compressing the female connector (7), the first flow pipe (14) is arranged on the movable end of the female connector (7) and is used for connecting the water hose, the annular protrusion is arranged on the inner side of the other end of the threaded gland (11) and is used for compressing the water hose, and the engagement structure is arranged between the annular protrusion and the first flow pipe (14); The engagement structure comprises the annular pipe sawtooth (15) arranged on the movable end of the first flow pipe (14) and the annular gland sawtooth (16) arranged on the inner wall of the threaded gland (11), the pipe sawtooth (15) is continuously arranged along the axial direction of the first flow pipe (14), the gland sawtooth (16) is continuously arranged along the axial direction of the threaded gland (11), and the pipe sawtooth (15) and the gland sawtooth (16) can be engaged with each other; The pipe diameter of the first flow pipe (14) decreases from the fixed end to the movable end; The wedge-shaped connecting ring (10) is fixedly connected to the outer circumferential surface of the female connector (7), the outer wall of the wedge-shaped connecting ring (10) is attached to the inner wall of the threaded gland (11), the bottom of the threaded gland (11) is connected with the inner sealing ring (12), and the inner diameter of the inner sealing ring (12) is greater than the inner diameter of the wedge-shaped connecting ring (10); The side wall of the wedge-shaped connecting ring (10) close to the inner sealing ring (12) is provided with an inwardly recessed annular surface.

2. The submersible sewage pump discharge pipe connection joint according to claim 1, characterized in that: The opposite end walls of the male connector (1) and the female connector (7) are respectively provided with the connecting block (6) and the clamping groove (9), the connecting block (6) is L-shaped, the clamping groove (9) is annular and coaxially arranged with the female connector (7), the clamping groove (9) is provided with the arc-shaped plate, and the spacing between the arc-shaped plate and the inner bottom wall of the clamping groove (9) is equal to the thickness of the movable end of the connecting block (6).

3. The submersible sewage pump discharge pipe connection joint of claim 2, wherein: The opposite side walls of the male connector (1) and the female connector (7) are respectively coaxially fixedly provided with the first sealing ring (4) and the second sealing ring (8), the inner diameters of the first sealing ring (4) and the second sealing ring (8) are equal, and the second sealing ring (8) is located on the inner side of the clamping groove (9).

4. The submersible sewage pump discharge pipe connection joint of claim 1, wherein: The outer side wall of the male connector (1) is provided with the connector connecting external thread (5), one end of the threaded gland (11) close to the female connector (7) is provided with the connector connecting internal thread (13), and the threaded gland (11) and the male connector (1) are fixedly connected through the connector connecting internal thread (13) and the connector connecting external thread (5).

5. The submersible sewage pump discharge pipe connection joint of claim 1, wherein: The side wall of the male connector (1) is coaxially fixedly connected with the connecting pipe (2), the inner side of the movable end of the connecting pipe (2) is provided with the pump connecting thread (3) and is connected with the external thread of the end part of the sewage pump outlet pipe through the pump connecting thread (3), the inner side wall of the connecting pipe (2) is coaxially fixedly connected with the second flow pipe (17), and the two ends of the second flow pipe (17) are respectively fixedly connected to the inner walls of the male connector (1) and the connecting pipe (2).

6. The method of using a submersible sewage pump discharge pipe connection joint of any one of claims 1-5, wherein, The method comprises the following steps: S1, the end of the male joint (1) is connected on the end of the sewage pump outlet pipe by thread, and the female joint (7) is connected on the male joint (1) by thread, so that the sealing rings at the opposite ends of the male joint (1) and the female joint (7) are butted; S2, the hose is sleeved on the first flow pipe (14) of the female joint (7), and then the threaded gland (11) is tightened, the female joint (7) is pushed by the end wall of the threaded gland (11), the hose is pressed on the first flow pipe (14) by the threaded gland (11), so that the female joint (7) and the male joint (1) are firmly butted, the sealing rings are tightly combined, the threaded gland (11) and the first flow pipe (14) are engaged by the engagement structure, and the threaded gland (11) and the first flow pipe (14) are engaged; S3, when the hose connected to the female joint (7) is "screwed", the pump can be stopped for a short time, the hose is not under pressure, the threaded gland (11) is slightly loosened, and then the female joint (7) is rotated, so that the whole hose is not pulled up and the hose is adjusted.

Images