PVC sewage and drainage pipe with noise reduction structure

Abstract

This utility model belongs to the field of drainage pipe technology, specifically relating to a PVC sewage drainage pipe with a noise reduction structure. It includes a floor slab layer, a shock-absorbing layer fixedly connected to the inner wall of the floor slab layer, a heat insulation layer fixedly connected to the inner wall of the shock-absorbing layer, reinforcing ribs fixedly connected to the inner wall of the heat insulation layer, a thermal insulation layer fixedly connected to the inner wall of the thermal insulation layer, an inner pipe fixedly connected to the inner wall of the thermal insulation layer, and multiple protruding rods fixedly connected to the inner wall of the inner pipe. A protective device for the drainage pipe is provided on the top of the floor slab layer. The protective device includes two protective plates, the bottoms of which are both located on the top of the floor slab layer. This utility model solves the problem that the noise reduction design of the device sacrifices the overall rigidity of the pipe material. While a softer material layer can effectively absorb sound energy, it has weak resistance to instantaneous external forces, making it prone to dents, cracks, or even breakage. This invention enhances rigidity and improves resistance.

Description

Technical Field

[0001] This utility model belongs to the field of drainage pipe technology, specifically relating to a PVC sewage drainage pipe with a noise reduction structure. Background Technology

[0002] A type of PVC sewage and drainage pipe with noise reduction structure is a PVC drainage pipe that significantly reduces water flow impact and aerodynamic noise through a special structural design. While maintaining the advantages of traditional pipes such as corrosion resistance and smooth drainage, it effectively solves the problem of drainage noise. It is especially suitable for buildings such as residences, hotels and hospitals with high requirements for quietness, and improves the comfort of the living and use environment.

[0003] Chinese patent CN218031864U discloses a PVC drainage pipe with noise reduction function, including a floor slab and a drainage pipe body. The drainage pipe body is made of PVC. The drainage pipe body is fixedly installed through the floor slab. The drainage pipe body includes a heat insulation layer, a thermal insulation layer, a shock-absorbing layer, and an inner pipe. The inner wall of the inner pipe has four identical protrusions and four identical grooves. The four grooves and protrusions are arranged in a circular array. The inner walls of the four grooves are fixedly provided with identical first microporous filters and second microporous filters. The ends of the four first microporous filters away from the second microporous filters are fixedly connected to the inner walls of the adjacent grooves with identical connecting posts. This patent can solve the problems of serious noise and easy bursting of existing drainage pipes.

[0004] However, the current device has the following problems: the noise reduction design in the device sacrifices the overall rigidity of the pipe. The softer material layer can effectively absorb sound energy, but it is weak in resisting instantaneous external forces and is prone to dents, cracks or even breakage. Therefore, we propose a PVC sewage and drainage pipe with a noise reduction structure. Utility Model Content

[0005] The purpose of this utility model is to provide a PVC sewage and drainage pipe with a noise reduction structure, which can solve the problem that in the related technology, the noise reduction design sacrifices the overall rigidity of the pipe. The softer material layer can effectively absorb sound energy, but it is weak in resisting instantaneous external forces and is prone to dents, cracks or even breakage.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A PVC sewage drainage pipe with a noise reduction structure includes a floor slab layer. A shock-absorbing layer is fixedly connected to the inner wall of the floor slab layer. A heat insulation layer is fixedly connected to the inner wall of the shock-absorbing layer. A reinforcing rib is fixedly connected to the inner wall of the heat insulation layer. A thermal insulation layer is fixedly connected to the inner wall of the thermal insulation layer. An inner pipe is fixedly connected to the inner wall of the thermal insulation layer. Multiple protruding rods are fixedly connected to the inner wall of the inner pipe. A protective device for the drainage pipe is provided on the top of the floor slab layer. The protective device includes two protective plates. The bottom of both protective plates is located on the top of the floor slab layer. An external groove is formed on the circumferential surface of both protective plates. A professional internal groove is formed on the inner wall of both protective plates.

[0008] Preferably, the circumferential surface of the reinforcing rib is in contact with the inner wall of the shock-absorbing layer, and the inner wall of the reinforcing rib is in contact with the circumferential surface of the insulation layer.

[0009] Preferably, the plurality of protruding rods are arranged in a ring array and the cross-sections of the protruding rods are all semi-circular, and a gap is left between the inner walls of the two protective plates and the circumferential surface of the shock-absorbing layer.

[0010] Preferably, the outer groove of one of the protective plates contacts the inner groove of the other protective plate, and the inner groove of one of the protective plates contacts the outer groove of the other protective plate.

[0011] Preferably, the inner walls of the two protective plates are provided with a support device for supporting the two protective plates. The support device includes multiple movable rods, one end of which is fixedly connected to the inner wall of the two protective plates. Both sides of the multiple movable rods are fixedly connected to protrusions. The circumferential surface of the shock-absorbing layer is fixedly connected to multiple concave plates. The inner walls of the multiple concave plates are fixedly connected to fixed rods. The circumferential surfaces of the multiple fixed rods are slidably connected to two movable blocks. The sides of the multiple movable blocks are fixedly connected to inclined blocks. Springs are provided between the sides of the multiple inclined blocks and the inner walls of the multiple concave plates. When the protective plate is accidentally impacted, the protective plate squeezes the movable rods. The movement of the movable rods drives the movement of the protrusions. The movement of the protrusions squeezes the inclined blocks to both sides. The movement of the inclined blocks drives the movable blocks to move on the circumferential surface of the fixed rods. The inclined blocks compress the springs for buffering.

[0012] Preferably, the sides of the plurality of movable blocks are in contact with the inner walls of the plurality of concave plates, and the sides of the plurality of inclined blocks away from the spring are configured as inclined surfaces.

[0013] Preferably, the inclined surfaces of the plurality of inclined blocks are in contact with the circumferential surfaces of the plurality of protrusions, and the circumferential surfaces of the plurality of protrusions are all set as smooth surfaces.

[0014] The technical effects achieved by this utility model are as follows:

[0015] This utility model, through the setting of protective devices, enables the cooperation of protective plates, outer grooves, and inner grooves. The outer grooves and inner grooves of the two protective plates are connected to each other. The two protective plates are set on the outside of the drainage pipe, which can improve the ring stiffness and physical and mechanical strength of the pipe, effectively resist external soil pressure, impact loads and accidental impacts, prevent flattening and deformation, and ensure the long-term stable operation of the drainage system. This structure can protect the internal noise reduction layer from damage, maintain its excellent quiet performance, and extend the service life of the pipe.

[0016] This utility model, through the setting of a support device, enables the cooperation of a moving rod, a protrusion, a concave plate, a fixed rod, a moving block, an inclined block, and a spring. When the protective plate is accidentally impacted, the protective plate squeezes the moving rod, the movement of the moving rod drives the movement of the protrusion, the movement of the protrusion squeezes the inclined block to both sides, the movement of the inclined block drives the moving block to move on the circumferential surface of the fixed rod, and the inclined block compresses the spring for buffering, thereby protecting and supporting the drain pipe and preventing the drain pipe from being directly deformed by accidental impact. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the entire utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the protective device of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the protective plate of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the support device of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the inclined block in this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Floor slab; 2. Vibration damping layer; 3. Insulation layer; 4. Reinforcing rib; 5. Thermal insulation layer; 6. Inner pipe; 7. Protruding rod; 8. Protective device; 81. Protective plate; 82. External groove; 83. Internal groove; 9. Support device; 91. Moving rod; 92. Protrusion; 93. Concave plate; 94. Fixed rod; 95. Moving block; 96. Inclined block; 97. Spring. Detailed Implementation

[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] like Figures 1-5 As shown, a PVC sewage drainage pipe with a noise reduction structure includes a floor slab 1. A shock-absorbing layer 2 is fixedly connected to the inner wall of the floor slab 1. The shock-absorbing layer 2 reduces the impact of water flow fluctuations on the outside, improving the noise reduction effect of the drainage pipe. A heat insulation layer 3 is fixedly connected to the inner wall of the shock-absorbing layer 2. Reinforcing ribs 4 are fixedly connected to the inner wall of the heat insulation layer 3. A thermal insulation layer 5 is fixedly connected to the inner wall of the thermal insulation layer 3. An inner pipe 6 is fixedly connected to the inner wall of the thermal insulation layer 5. Multiple protruding rods 7 are fixedly connected to the inner wall of the inner pipe 6. The protruding rods 7 can guide flow and reduce noise. A protective device 8 for the drainage pipe is installed at the top of the floor slab 1. The protective device 8 includes two protective plates 81. The bottom of each of the two protective plates 81 is set on the top of the floor slab 1. The circumferential surfaces of the two protective plates 81 are provided with external grooves 82, and the inner walls of the two protective plates 81 are provided with professional internal grooves 83. The circumferential surface of the reinforcing rib 4 is in contact with the inner wall of the damping layer 2, and the inner wall of the reinforcing rib 4 is in contact with the circumferential surface of the insulation layer 5. Multiple protruding rods 7 are arranged in a ring array and the cross-sections are all semi-circular. There is a gap between the inner walls of the two protective plates 81 and the circumferential surface of the damping layer 2. The external groove 82 of one protective plate 81 is in contact with the internal groove 83 of the other protective plate 81, and the internal groove 83 of one protective plate 81 is in contact with the external groove 82 of the other protective plate 81.

[0026] According to the above structure, the outer groove 82 and inner groove 83 of the two protective plates 81 are connected to each other. The two protective plates 81 are set on the outside of the drainage pipe, which can improve the ring stiffness and physical and mechanical strength of the pipe, effectively resist external soil pressure, impact load and accidental impact, prevent flattening and deformation, and ensure the long-term stable operation of the drainage system. This structure can protect the internal noise reduction layer from damage, maintain its excellent quiet performance, and extend the service life of the pipe.

[0027] like Figures 1-5 As shown, the inner walls of the two protective plates 81 are provided with support devices 9 to support the two protective plates 81. The support devices 9 include multiple moving rods 91. One end of the multiple moving rods 91 is fixedly connected to the inner wall of the two protective plates 81. Both sides of the multiple moving rods 91 are fixedly connected with protrusions 92. The circumferential surface of the shock-absorbing layer 2 is fixedly connected with multiple concave plates 93. The inner walls of the multiple concave plates 93 are fixedly connected with fixing rods 94. The circumferential surfaces of the multiple fixing rods 94 are slidably connected with two moving blocks 95. The sides of the multiple moving blocks 95 are fixedly connected with inclined blocks 96. The sides of the multiple inclined blocks 96 and the inner walls of the multiple concave plates 93 are provided with springs 97. The sides of the multiple moving blocks 95 are in contact with the inner walls of the multiple concave plates 93. The sides of the multiple inclined blocks 96 away from the springs 97 are set as inclined surfaces. The inclined surfaces of the multiple inclined blocks 96 are in contact with the circumferential surfaces of the multiple protrusions 92. The circumferential surfaces of the multiple protrusions 92 are all set as smooth surfaces.

[0028] According to the above structure, when the protective plate 81 is accidentally impacted, the protective plate 81 presses the moving rod 91. The movement of the moving rod 91 drives the movement of the protrusion 92. The movement of the protrusion 92 presses the inclined block 96 to both sides. The movement of the inclined block 96 drives the moving block 95 to move on the circumferential surface of the fixed rod 94. The inclined block 96 compresses the spring 97 for buffering, thereby protecting and supporting the drain pipe and preventing the drain pipe from being directly deformed by the accidental impact.

[0029] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A PVC sewage drainage pipe with a noise reduction structure, comprising a floor slab layer (1), characterized in that: The inner wall of the floor slab (1) is fixedly connected to a shock-absorbing layer (2), the inner wall of the shock-absorbing layer (2) is fixedly connected to a heat insulation layer (3), the inner wall of the heat insulation layer (3) is fixedly connected to a reinforcing rib (4), the inner wall of the heat insulation layer (3) is fixedly connected to a thermal insulation layer (5), the inner wall of the thermal insulation layer (5) is fixedly connected to an inner tube (6), the inner wall of the inner tube (6) is fixedly connected to multiple protruding rods (7), the top of the floor slab (1) is provided with a protective device (8) for the drainage pipe, the protective device (8) includes two protective plates (81), the bottom of the two protective plates (81) is set on the top of the floor slab (1), the circumferential surface of the two protective plates (81) is provided with an outer groove (82), and the inner wall of the two protective plates (81) is provided with a professional inner groove (83).

2. The PVC sewage and drainage pipe with noise reduction structure according to claim 1, characterized in that: The circumferential surface of the reinforcing rib (4) is in contact with the inner wall of the damping layer (2), and the inner wall of the reinforcing rib (4) is in contact with the circumferential surface of the insulation layer (5).

3. The PVC sewage and drainage pipe with noise reduction structure according to claim 1, characterized in that: The multiple protruding rods (7) are arranged in a ring array and their cross-sections are all semi-circular. There is a gap between the inner wall of the two protective plates (81) and the circumferential surface of the shock-absorbing layer (2).

4. A PVC sewage drainage pipe with a noise reduction structure according to claim 1, characterized in that: The outer groove (82) of one of the protective plates (81) is in contact with the inner groove (83) of the other protective plate (81), and the inner groove (83) of one of the protective plates (81) is in contact with the outer groove (82) of the other protective plate (81).

5. A PVC sewage drainage pipe with a noise reduction structure according to claim 1, characterized in that: The inner walls of the two protective plates (81) are provided with a support device (9) for supporting the two protective plates (81). The support device (9) includes multiple moving rods (91). One end of the multiple moving rods (91) is fixedly connected to the inner wall of the two protective plates (81). Both sides of the multiple moving rods (91) are fixedly connected with protrusions (92). The circumferential surface of the shock-absorbing layer (2) is fixedly connected with multiple concave plates (93). The inner walls of the multiple concave plates (93) are fixedly connected with fixing rods (94). The circumferential surfaces of the multiple fixing rods (94) are slidably connected with two moving blocks (95). The sides of the multiple moving blocks (95) are fixedly connected with inclined blocks (96). Springs (97) are provided between the sides of the multiple inclined blocks (96) and the inner walls of the multiple concave plates (93).

6. A PVC sewage drainage pipe with a noise reduction structure according to claim 5, characterized in that: The sides of the plurality of movable blocks (95) are in contact with the inner walls of the plurality of concave plates (93), and the sides of the plurality of inclined blocks (96) away from the spring (97) are configured as inclined surfaces.

7. The PVC sewage and drainage pipe with noise reduction structure according to claim 5, characterized in that: The inclined surfaces of the plurality of inclined blocks (96) are in contact with the circumferential surfaces of the plurality of protrusions (92), and the circumferential surfaces of the plurality of protrusions (92) are all set as smooth surfaces.

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