Drainage pipeline connecting device for construction

Abstract

The utility model discloses a water falling pipeline connecting device for construction, which belongs to the technical field of buildings and comprises a hollow body, the upper end and the lower end of the body are both rotatably connected with locking nuts, grooves are formed in the positions, corresponding to the locking nuts, of the outer surface of the body along the vertical direction, and inserting holes are formed in the positions, corresponding to the grooves, of the locking nuts. By arranging the locking nut, the sliding plate and the inserting block and arranging the inserting hole in the locking nut, during installation, joints of two to-be-connected water falling pipelines are in threaded connection with the locking nut, the locking nut is continuously screwed, the joints of the water falling pipelines continuously approach the body, the joints of the water falling pipelines move to set positions, and then the water falling pipelines are connected. Then the sliding plate is pushed to drive the insertion block to move towards the outer side of the body until the insertion block is inserted into the insertion hole of the corresponding locking nut, and connection of the two water falling pipelines can be achieved; the cooperation of the insertion block and the insertion hole prevents the locking nut from accidentally rotating due to external force in use, and the purposes of convenient disassembly and assembly and looseness prevention are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction, and particularly relates to a connecting device for a building downspout pipe. Background Art

[0002] The downspout is used to collect the rainwater on the roof and is a part of the downspout system, which centrally guides the rainwater on the roof into the rainwater pipe laid below the ground. The materials of the downspout can be divided into: 1. Metal pipes (such as cast iron pipes, color aluminum pipes, copper pipes, color steel pipes, etc.); 2. Plastic pipes (such as PVC pipes, etc.); The connection methods of the downspout include various methods such as threaded connection, welding, flange connection, and quick joints.

[0003] At present, for the existing connecting device for building downspout pipes, when the rainwater enters the pipe connecting device, due to the too high water flow velocity, the connecting device may be subjected to a relatively large impact force, resulting in looseness between the connecting device and the pipe; when connecting the downspout pipe and the connecting ring, the device is not easy to fix the connecting ring, so there may be an insecure situation between the connecting ring and the external water pipe.

[0004] After retrieval, the patent number is: CN107355608A, which provides a flexible water pipe connecting device. The connecting body of the device is installed at the connecting part between the water pipes. A sealing ring is installed inside the end of the connecting body, the end of the water pipe is inserted into the sealing ring, and a fixing part is installed at the end of the water pipe, and the front end of the fixing part is connected to the connecting body. This technical solution can adapt to the connection of metal pipes and plastic pipes, and has a wide application range; the sealing ring is elastically sealed between the connecting body and the water pipe.

[0005] The above technical solution connects the water pipes through the connecting body. The end parts of the two connected water pipes are located inside the connecting body and there is a gap, which may cause the connecting device to be subjected to a relatively large impact force due to the too high water flow velocity during use, resulting in looseness between the connecting device and the pipe. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a connecting device for a building downspout pipe, which has the advantages of convenient disassembly and installation, and at the same time, the connecting device has an anti-loosening function, effectively solving the problem of inconvenient disassembly in the prior art.

[0007] The utility model adopts the following technical scheme: A connecting device for a building downspout pipe includes a hollow body. Locking nuts are rotatably connected to both the upper end and the lower end of the body. Grooves are vertically formed on the outer surface of the body corresponding to the locking nuts. Insertion holes are formed in the locking nuts corresponding to the grooves. A sliding plate is slidably connected vertically in the groove. An insertion block adapted to the insertion hole is fixedly provided on the outer side surface of the sliding plate.

[0008] Furthermore, a circular protrusion is convexly arranged in the middle section of the inner side wall of the body, and both the upper end surface and the lower end surface of the circular protrusion are horizontal planes.

[0009] Furthermore, annular grooves are formed in both the upper end surface and the lower end surface of the circular protrusion, and an annular sealing rubber ring is embedded in the annular grooves.

[0010] Furthermore, a guide rod is fixedly arranged on the inner side wall of the groove of the body in the vertical direction. The guide rod penetrates through the sliding plate, and a spring is sleeved on the guide rod located inside the sliding plate.

[0011] Furthermore, a push plate is fixedly arranged on the outer side surface of the sliding plate.

[0012] Furthermore, bearings are fixedly arranged on the inner side walls of the body above and below the circular protrusion. The inner side walls of the bearings are fixedly arranged with the outer surfaces of the corresponding lock nuts, and the lock nuts are rotationally connected to the body through the bearings.

[0013] Furthermore, a receiving groove is formed in the inner side wall of the circular protrusion. A sliding groove is formed on one side of the receiving groove, and sliding blocks are slidably arranged on the inner side walls on both sides of the sliding groove. A filter screen plate is fixedly arranged between the two sliding blocks; a pushing block is fixedly arranged on the outer side surface of the filter screen plate.

[0014] Furthermore, the filter screen plate includes a frame, and filter screen sheets fixed in the frame by bolts. Annular grooves are formed in both the upper end surface and the lower end surface of the frame, and sealing rubber rings are embedded in the annular grooves.

[0015] Furthermore, the upper end surface of the filter screen sheet is lower than the upper end surface of the frame, and a receiving space with an open upper end is formed between the inner side wall of the frame and the upper end surface of the filter screen sheet.

[0016] Furthermore, a cover plate is fixedly arranged at the position of the body corresponding to the push plate. When the insertion block is in the state of being inserted into the insertion hole, the end of the push plate close to the sliding plate is located below the cover plate.

[0017] 1. By providing a lock nut, a sliding plate, an insertion block and an insertion hole on the lock nut, during installation, the joints of the two water outlet pipes to be connected are threadedly connected to the lock nut. By continuously screwing the lock nut, the joints of the water outlet pipes continuously approach the body, so that the joints of the water outlet pipes move to the set position. Then, the sliding plate is pushed to drive the insertion block to move outward from the body until it is inserted into the insertion hole of the corresponding lock nut, and the connection of the two water outlet pipes can be realized; the cooperation of the insertion block and the insertion hole prevents the lock nut from being accidentally rotated by external force during use, achieving the purpose of facilitating disassembly and installation and preventing loosening.

[0018] Second, the utility model realizes the cooperation between the end face of the joint of the water discharge pipe and the upper or lower end face of the annular protrusion by setting the annular protrusion, so as to achieve the purpose of water tightness. At the same time, the annular protrusion plays a role in positioning the water discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall three-dimensional structure diagram of the utility model;

[0020] Figure 2 is the front view structure diagram of the utility model;

[0021] Figure 3 is the internal three-dimensional structure diagram of the body in the utility model;

[0022] Figure 4 is the internal structure diagram of the body in the utility model;

[0023] Figure 5 is in the utility model Figure 3 is the enlarged structure diagram of part A therein;

[0024] Figure 6 is the three-dimensional structure diagram of the separated state of the water discharge pipe and the body in the utility model;

[0025] Figure 7 is the three-dimensional structure diagram of the separated state of the body and the locking nut in the utility model;

[0026] Figure 8 is the three-dimensional structure diagram of the state where the filter screen plate is drawn out of the body in the utility model;

[0027] Figure 9 is the three-dimensional structure diagram of the internal accommodation groove and sliding groove of the body in the utility model.

[0028] In the figure, 1. body; 2. locking nut; 3. vertical groove; 4. jack; 5. sliding plate; 6. inserting block; 7. water discharge pipe; 8. joint; 9. annular protrusion; 10. sealing rubber ring; 11. guide rod; 12. spring; 13. push plate; 14. cover plate; 15. bearing; 16. accommodation groove; 17. sliding groove; 18. slider; 19. filter screen plate; 20. pushing block; 21. frame; 22. filter screen piece; 23. annular groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The following is a detailed description of the utility model with reference to the drawings and embodiments:

[0030] Please refer to Figures 1-9, the connecting device for the building downspout described in the present utility model includes a hollow body 1. Locking nuts 2 are rotatably connected to both the upper and lower ends of the body 1. A vertical groove 3 is provided on the outer surface of the body 1 corresponding to the locking nut 2 in the vertical direction. A jack 4 is provided at the position of the locking nut 2 corresponding to the vertical groove 3. A slide plate 5 is slidably connected in the vertical groove 3 in the vertical direction. An insertion block 6 adapted to the jack 4 is fixedly provided on the outer side surface of the slide plate 5. During installation, external threads adapted to the internal threads of the locking nut 2 are provided at the joints 8 of the two downspouts 7 to be connected. The joint 8 of the downspout 7 is threadedly connected to the locking nut 2. By continuously screwing the locking nut 2, the joint 8 of the downspout 7 continuously approaches the body 1 until the joint 8 of the downspout 7 moves to the set position. Then, the slide plate 5 is pushed to drive the insertion block 6 to move outward of the body 1 until it is inserted into the jack 4 of the corresponding locking nut 2, thus realizing the connection of the two downspouts 7. The cooperation of the insertion block 6 and the jack 4 prevents the locking nut 2 from being accidentally rotated by external force during use.

[0031] In order to achieve a better sealing effect at the connection of the downspout 7, in this embodiment, a ring-shaped protrusion 9 is convexly provided in the middle section of the inner side wall of the body 1. The upper and lower end surfaces of the ring-shaped protrusion 9 are both horizontal planes. When connecting the two downspouts 7, by screwing the locking nut 2, the locking nut 2 is threadedly connected to the joint 8 of the downspout 7. By screwing the locking nut 2, the joint 8 of the downspout 7 continuously approaches the upper or lower end surface of the ring-shaped protrusion 9 until the end surface of the joint 8 of the downspout 7 abuts against the upper or lower end surface of the ring-shaped protrusion 9, realizing the cooperation between the end surface of the joint 8 of the pipe and the upper or lower end surface of the ring-shaped protrusion 9 to achieve the purpose of water tightness. The ring-shaped protrusion 9 also plays a positioning role for the downspout 7.

[0032] In order to further improve the water tightness effect at the contact between the end surface of the joint 8 of the downspout 7 and the upper or lower end surface of the ring-shaped protrusion 9, in this embodiment, ring-shaped grooves are provided on both the upper and lower end surfaces of the ring-shaped protrusion 9, and a ring-shaped sealing rubber ring 10 is embedded in the ring-shaped grooves. When the end surface of the joint 8 of the downspout 7 abuts against the upper or lower end surface of the ring-shaped protrusion 9, the sealing rubber ring 10 is compressed to realize the water tightness effect between the end surface of the joint 8 of the downspout 7 and the upper or lower end surface of the ring-shaped protrusion 9, preventing water leakage. The sealing rubber ring 10 is of an O-shaped structure and is made of rubber material.

[0033] In this embodiment, a guide rod 11 is fixedly provided on the inner side wall of the vertical groove 3 of the body 1 in the vertical direction. The guide rod 11 penetrates through the slide plate 5, and a spring 12 is sleeved on the guide rod 11 located inside the slide plate 5. During normal use, the spring 12 pushes the slide plate 5 upward, causing the slide plate 5 to drive the insertion block 6 to be inserted into the jack 4 of the corresponding locking nut 2, preventing the insertion block 6 from disengaging from the jack 4.

[0034] In order to facilitate the up and down sliding of the sliding plate 5, in this embodiment, a push plate 13 is fixedly arranged on the outer side surface of the sliding plate 5. By manually pushing the push plate 13, the insertion block 6 can be driven by the sliding plate 5 to move up and down. During disassembly, by manually sliding the push plate 13, the push plate 13 drives the insertion block 6 through the sliding plate 5 to overcome the force of the spring 12 and disengage from the insertion hole 4 in the locking nut 2, and then the locking nut 2 is rotated and screwed, so that the joint 8 of the water discharge pipe 7 exits from the locking nut 2, and the disassembly of the water discharge pipe 7 can be realized.

[0035] In order to prevent the push plate 13 from accidentally moving under external force during use, in this embodiment, a cover plate 14 is fixedly arranged at the position of the main body 1 corresponding to the push plate 13. When the insertion block 6 is in the state of being inserted into the insertion hole 4, the end of the push plate 13 close to the sliding plate 5 is located below the cover plate 14, preventing the end of the push plate 13 close to the sliding plate 5 from accidentally moving under external force; an avoidance space is provided on the inner side surface of the cover plate 14 close to the main body 1, which does not prevent the normal up and down movement of the push plate 13.

[0036] In this embodiment, bearing 15 is fixedly arranged on the inner side walls of the main body 1 above and below the annular protrusion 9. The inner side wall of the bearing 15 is fixedly arranged with the outer surface of the corresponding locking nut 2. The locking nut 2 is rotationally connected to the main body 1 through the bearing 15; the structure of the bearing 15 is an existing technology. The outer ring of the bearing 15 is fixedly arranged with the inner side wall of the main body 1, and the inner ring of the bearing 15 is fixedly arranged with the outer surface of the corresponding locking nut 2.

[0037] In order to enable the main body 1 to have a filtering function during use, in this embodiment, a receiving groove 16 is provided on the inner side wall of the annular protrusion 9. A sliding groove 17 is provided on one side of the receiving groove 16. Sliding blocks 18 are slidably arranged on the inner side walls on both sides of the sliding groove 17. A filter screen plate 19 is fixedly arranged between the two sliding blocks 18; a pushing block 20 is fixedly arranged on the outer side surface of the filter screen plate 19; during installation, the filter screen plate 19 is pushed into the receiving groove 16 from the sliding groove 17, and then the pushing block 20 is fixed to the outer surface of the main body 1 by bolts; during use, water flows down from the upper water discharge pipe 7, passes through the filtration of the filter screen plate 19 and enters the lower water discharge pipe 7, achieving the purpose of filtering the water flow and preventing the blockage of the water discharge pipe 7. It is necessary to regularly extract the filter screen plate 19 to clean or replace the filter screen plate 19.

[0038] In order to improve the sealing effect at the contact positions between the upper end surface and the lower end surface of the filter screen plate 19 and the inner top wall and the inner bottom wall of the receiving groove 16 respectively, in this embodiment, the filter screen plate 19 includes a frame 21 and a filter screen sheet 22 fixed in the frame 21 by bolts. Annular grooves 23 are provided on the upper end surface and the lower end surface of the frame 21. Sealing rubber rings are embedded in the annular grooves 23. After the filter screen plate 19 enters the receiving groove 16, the frame 21 of the filter screen plate 19 is made watertight with the receiving groove 16 through the sealing rubber rings to prevent water leakage.

[0039] In this embodiment, the upper end surface of the filter screen 22 is lower than the upper end surface of the frame 21. In the figure, the height difference between the upper end surface of the filter screen 22 and the upper end surface of the frame 21 is not shown. A receiving space with an open upper end is formed between the inner side wall of the frame 21 and the upper end surface of the filter screen 22. During use, a set amount of garbage can be retained on the upper end surface of the filter screen 22. At the same time, when the filter screen plate 19 is pulled out, due to the existence of the receiving space, the garbage on the upper end surface of the filter screen 22 will not be scraped by the inner top wall of the receiving groove 16, which is convenient for the extraction of foreign matters such as garbage.

[0040] Working principle of the utility model: During installation, the joints 8 of the two water inlet pipes 7 to be connected are threadedly connected to the locking nuts 2. By continuously screwing the locking nuts 2, the joints 8 of the water inlet pipes 7 continuously approach the main body 1. At this time, it is necessary to manually move the push plate 13, so that the push plate 13 drives the plug 6 to move into the main body 1 through the sliding plate 5. When the joint 8 of the water inlet pipe 7 moves to contact the upper end surface or the lower end surface of the annular protrusion 9, the sealing rubber 10 is compressed. At this time, by pushing the push plate 13, the plug 6 can be inserted into the insertion hole 4 of the locking nut 2 to achieve the purpose of locking the locking nut 2. The cooperation between the plug 6 and the insertion hole 4 prevents the locking nut 2 from rotating accidentally under external force during use; during use, the filter screen plate 19 is regularly pulled out for cleaning.

Claims

1. A connecting device for a water drainage pipe used in construction, characterized in that: It includes a hollow body (1), locking nuts (2) are rotatably connected to both the upper end and the lower end of the body (1). Vertical grooves (3) are provided in the vertical direction at positions corresponding to the locking nuts (2) on the outer surface of the body (1). Jack holes (4) are provided at positions corresponding to the vertical grooves (3) on the locking nuts (2). A sliding plate (5) is slidably connected in the vertical direction in the vertical groove (3). A plug block (6) adapted to the jack hole (4) is fixedly provided on the outer side surface of the sliding plate (5).

2. The connecting device for the building downspout according to claim 1, characterized in that: A middle section of the inner side wall of the body (1) protrudes to form an annular protrusion (9), and the upper end surface and the lower end surface of the annular protrusion (9) are both horizontal planes.

3. The connecting device for the water drainage pipeline for construction according to claim 2, characterized in that: Annular grooves are provided on both the upper end surface and the lower end surface of the annular protrusion (9), and an annular sealing rubber ring (10) is embedded in the annular grooves.

4. The connecting device for the water drainage pipeline for construction according to claim 1, characterized in that: Guide rods (11) are fixedly provided in the vertical direction on the inner side wall of the vertical groove (3) of the body (1). The guide rods (11) penetrate through the sliding plate (5), and a spring (12) is sleeved on the guide rods (11) located inside the sliding plate (5).

5. The connecting device for the building downspout according to claim 1 or 4, characterized in that: A push plate (13) is fixedly provided on the outer side surface of the sliding plate (5).

6. The connecting device for the rainwater pipes for construction according to claim 2, characterized in that: Bearings (15) are fixedly provided on the inner side walls of the body (1) above and below the annular protrusion (9). The inner side walls of the bearings (15) are fixedly provided with the outer surfaces of the corresponding locking nuts (2). The locking nuts (2) are rotatably connected to the body (1) through the bearings (15).

7. The connecting device for the rainwater pipe for construction according to claim 2, characterized in that: A receiving groove (16) is provided on the inner side wall of the annular protrusion (9). A sliding groove (17) is provided on one side of the receiving groove (16). Sliding blocks (18) are slidably provided on the inner side walls on both sides of the sliding groove (17). A filter screen plate (19) is fixedly provided between the two sliding blocks (18); a pushing block (20) is fixedly provided on the outer side surface of the filter screen plate (19).

8. The connecting device for the water discharge pipeline for construction according to claim 7, characterized in that: The filter screen plate (19) includes a frame (21), and filter screen sheets (22) fixed in the frame (21) by bolts. Annular grooves (23) are provided on both the upper end surface and the lower end surface of the frame (21), and sealing rubber rings are embedded in the annular grooves (23).

9. The connecting device for the rainwater pipe for construction according to claim 8, characterized in that: The upper end surface of the filter screen sheet (22) is lower than the upper end surface of the frame (21), and a receiving space with an open upper end is formed between the inner side wall of the frame (21) and the upper end surface of the filter screen sheet (22).

10. The connecting device for the building water discharge pipe according to claim 5, characterized in that: A cover plate (14) is fixedly provided at a position corresponding to the push plate (13) on the body (1). When the plug block (6) is in a state of being inserted into the jack hole (4), the end of the push plate (13) close to the sliding plate (5) is located below the cover plate (14).

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