Waterproof hammer drainage pipe fitting

Abstract

The utility model relates to the technical field of drainage pipe fittings, in particular to a waterproof hammer drainage pipe fitting which comprises an inner pipe and an outer pipe, one end of the inner pipe is a closed end, and a water outlet is formed in the side wall of the inner pipe; the outer pipe is arranged outside the inner pipe in a sleeving manner and is connected with the inner pipe; and the water outlet is communicated with the outer pipe. The closed end is arranged to bear the impact of water flow, after the flow speed of the water flow is reduced, the water flow is guided through the water outlet and the appearance inner wall, the water flow speed is further reduced, and therefore pipeline vibration and noise pollution are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of drainage pipe fitting, more particularly to a water hammer prevention drainage pipe fitting. BACKGROUND

[0002] Drainage pipe fitting refers to the pipe fitting used in the pipe system for discharging sewage, rainwater and waste water, which connects various drainage pipes to complete the transportation and discharge of sewage.

[0003] However, due to the great water potential energy and gravity acceleration caused by the building height, the sharp change of water flow will produce strong pressure fluctuation, causing severe vibration and noise pollution of the pipe system, and even causing pipe rupture and water leakage, which poses a great threat to the building structure and the quality of life of residents. Among them, the water hammer phenomenon is particularly prominent, which not only causes pipe vibration and noise intensification, but also may lead to pipe rupture and water leakage, seriously threatening the safety of the building and the quality of life of residents. SUMMARY

[0004] The utility model aims at overcoming the defect that the rapid movement of water flow causes pipe vibration and noise in the prior art, and provides a water hammer prevention drainage pipe fitting, which can reduce the flow rate of water flow and avoid pipe vibration and noise pollution.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of:

[0006] The utility model provides a water hammer prevention drainage pipe fitting, which comprises an inner pipe and an outer pipe, one end of the inner pipe is provided with a closed end, and a water outlet is arranged on the side wall; the outer pipe is sleeved on the outer surface of the inner pipe and is connected with the inner pipe; the water outlet is communicated with the outer pipe.

[0007] The water hammer prevention drainage pipe fitting connects the inner pipe with the water inlet pipe and connects the outer pipe with the water outlet pipe, when water flow enters the inner pipe from the water inlet pipe, the closed end is impacted, after the flow rate of water flow is reduced by the closed end, the water flow flows to the outer pipe from the water outlet, and the water flow flows to the water outlet pipe after being guided by the inner wall of the outer pipe, which can further reduce the flow rate of water flow. By setting the closed end to bear the impact of water flow, the flow rate of water flow is reduced, and then the water flow is guided by the water outlet and the inner wall of the outer pipe, which further reduces the flow rate of water flow, thereby avoiding pipe vibration and noise pollution.

[0008] Further, the buffer assembly further comprises a buffer pad, the buffer pad is installed and connected on the plunger block. By setting the buffer pad, the impact force of the water flow on the plunger block is reduced, and pipeline vibration is avoided.

[0009] Further, the buffer assembly further comprises a buffer pad, the buffer pad is installed and connected on the plunger block. By setting the buffer pad, the impact force of the water flow on the plunger block is reduced, and pipeline vibration is avoided.

[0010] Further, the water outlet is provided with a plurality of axial directions along the inner tube. By setting multiple water outlets along the axial direction, when the flow rate of the water flow is fast and the water flow is large, the compression degree of the elastic element is larger, so that the water flow can flow to the outer tube through more water outlets, thereby automatically adjusting the drainage amount and ensuring the efficiency and stability of drainage.

[0011] Further, the buffer assembly further comprises a guide rod, the guide rod is in sliding connection with the inner tube, and the plunger block is connected with the guide rod. By setting the guide rod, the movement of the plunger block is guided, and the movement of the plunger block is smoother.

[0012] Further, the buffer assembly further comprises a fixed seat, the elastic element is provided as a spring, and the spring is sleeved on the fixed seat. By setting the fixed seat, the compression of the elastic element is guided, and the movement of the plunger block is smoother.

[0013] Further, the inner wall of the outer tube is provided with a wave structure. The wave structure buffers the water flow flowing to the outer tube again, and reduces the flow rate of the water flow.

[0014] Further, the cross section of the water outlet gradually increases from the inner tube to the outer tube. The smoothness of drainage is ensured, and pipeline vibration and noise pollution are avoided.

[0015] Further, the outer wall of the inner tube is provided with a guide block, and the guide block is located beside the water outlet. By setting the guide block, the distance between the outer wall of the inner tube and the inner wall of the outer tube is shortened, the guide distance is increased, the impact of the water flow is further reduced, and pipeline vibration and noise pollution are avoided.

[0016] Further, the guide block gradually inclines to the outer tube along the flow direction of the water flow. By inclining the guide block, the water flow still flows along the axial direction of the pipeline, the smoothness of drainage is ensured, and pipeline vibration and noise pollution are avoided.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The waterproof hammer drainage pipe fitting of the utility model, through setting the closed end to bear the impact of water flow, reducing the flow rate of water flow, then guiding the water flow through the water outlet and the appearance inner wall, further reducing the water flow speed, thereby avoiding pipeline vibration and noise pollution.

[0019] 2. The waterproof hammer drainage pipe fitting of the utility model, through setting the buffer assembly, when the water flow flows to the inner pipe, first impacting the plunger block, buffering the impact of water flow through the compression elastic piece, thereby reducing the impact force of water flow on the closed end, avoiding pipeline vibration.

[0020] 3. The waterproof hammer drainage pipe fitting of the utility model, through the flow guide slope guiding the water flow of the water outlet, through setting the flow guide block, shortening the distance between the inner pipe outer wall and the outer pipe inner wall, increasing the guiding distance, ensuring the smoothness of drainage, thereby avoiding pipeline vibration and noise pollution. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structural diagram of the waterproof hammer drainage pipe fitting;

[0022] Figure 2 It is the structural diagram of the inner pipe in the waterproof hammer drainage pipe fitting;

[0023] Figure 3 It is the structural diagram of the outer pipe in the waterproof hammer drainage pipe fitting.

[0024] In the drawings: 1, inner pipe; 101, closed end; 102, water outlet; 121, flow guide slope; 2, outer pipe; 201, wave structure; 3, buffer assembly; 301, plunger block; 302, elastic piece; 303, buffer pad; 304, guide rod; 305, fixed seat; 4, flow guide block. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The present application will be further described below with reference to the specific embodiments. In the drawings, only for exemplary description, only schematic diagrams are represented, not physical diagrams, and cannot be understood as the limitation of the present patent; in order to better illustrate the embodiments of the present application, some components in the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings can be omitted. In the drawings, only for exemplary description, only schematic diagrams are represented, not physical diagrams, and cannot be understood as the limitation of the present patent; in order to better illustrate the embodiments of the present application, some components in the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings can be omitted

[0026] The same or similar reference numerals in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it is understood that if the terms "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, structure and operation, therefore, the positional relationship described in the drawings is only for exemplary description, and cannot be understood as the limitation of the present patent, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific situation.

[0027] Embodiment one

[0028] The present embodiment is a first embodiment of a waterproof hammer drain pipe fitting, as shown in Figure 1As shown, it comprises an inner tube 1 and an outer tube 2, both of which are hollow tubes, the inner tube 1 is provided with a closed end 101 at one end and an open end at the other end, which is used to connect with the water inlet pipe, and the side wall is provided with a water outlet 102, which is circumferentially provided with a plurality of; the outer tube 2 is sleeved outside the inner tube 1 and connected with the inner tube 1, both ends of the outer tube 2 are provided with an opening, one end of the outer tube 2 is connected with the inner tube 1, and the other end is connected with the water outlet pipe. The outer tube 2 and the inner tube 1 are preferably detachably connected, so that the outer tube 2 or the inner tube 1 can be repaired or replaced respectively. The detachable connection can be a threaded connection, which has better sealing performance, and a sealing ring is arranged between the inner tube 1 and the outer tube 2 at the connection, that is, the outer circumference of the inner tube 1 is provided with a sealing groove, the sealing ring is sleeved outside the outer circumference of the inner tube 1 and located in the sealing groove for sealing to prevent water flow from the connection between the inner tube 1 and the outer tube 2; the water outlet 102 communicates with the outer tube 2, and the water outlet 102 is close to the inner wall of the outer tube 2, and the smaller the gap is, the better.

[0029] The working principle of the water hammer prevention drainage pipe fitting of the embodiment is as follows:

[0030] The inner tube 1 is connected with the water inlet pipe, the water inlet pipe can be directly inserted into the open end of the inner tube 1, and then locked by a locking assembly, the outer tube 2 is connected with the water outlet pipe, and also locked by a locking assembly, when water flows into the inner tube 1 from the water inlet pipe, the closed end 101 is impacted, the flow rate of the water is reduced after the closed end 101, and then the water flows from the water outlet 102 to the outer tube 2, and then the water flows to the water outlet pipe through the inner wall of the outer tube 2, which can further reduce the flow rate of the water. By setting the closed end 101 to bear the impact of the water flow, the flow rate of the water is reduced, and then the water flow is guided through the water outlet 102 and the inner wall of the outer tube 2, which further reduces the water flow rate, thereby avoiding pipeline vibration and noise pollution.

[0031] Embodiment two

[0032] The water hammer prevention drainage pipe fitting of the embodiment is based on the embodiment one, and as shown in the embodiment, Figure 1 It further comprises a buffer assembly 3, as shown in Figure 2As shown, the buffer assembly 3 comprises a plunger block 301 and an elastic member 302. The plunger block 301 is in sealing sliding connection with the inner tube 1. A sealing ring is arranged between the plunger block 301 and the inner tube 1 to ensure the sealing effect between the plunger block 301 and the inner tube 1, so as to avoid water flowing out directly from between the plunger block 301 and the inner tube 1. The plunger block 301 is a piston. The plunger block 301 performs piston movement with the inner tube 1. The two ends of the elastic member 302 are connected with the plunger block 301 and the inner tube 1 respectively. The buffer assembly 3 can be arranged in the axial direction of the inner tube 1 or in the radial direction of the inner tube 1. In this embodiment, the elastic member 302 is preferably a spring. When the elastic member 302 is in the initial state, the water outlet 102 is located between the plunger block 301 and the closed end 101, that is, when the spring is in the original length, the plunger block 301 is located between the open end and the water outlet 102. When water flows from the floor, the weight and the instantaneous pressure of the water flow act on the plunger block 301 together, so as to compress the spring and generate displacement of the plunger block 301 as a whole, so as to expose the water outlet 102. Only in this way, the water flow can flow from the water outlet 102 to the outer tube 2. By arranging the buffer assembly 3, when the water flow flows to the inner tube 1, the water flow first impacts the plunger block 301, and the impact of the water flow is buffered by compressing the elastic member 302, so as to reduce the impact force of the water flow on the closed end 101, and avoid pipeline vibration. When the spring is compressed to expose the water outlet 102, the water flow can flow from the water outlet 102 to the outer tube 2, and then to the water outlet pipe.

[0033] The buffer assembly 3 further comprises a buffer pad 303. The buffer pad 303 is arranged on the plunger block 301 and located on the side of the plunger block 301 close to the open end of the inner tube. By arranging the buffer pad 303, when the water flow flows to the plunger block 301, the impact force of the water flow is first reduced by the buffer pad 303, so as to reduce the impact force of the water flow on the plunger block 301 and avoid pipeline vibration. The side of the plunger block 301 away from the open end of the inner tube 1 can be appropriately hollowed out, so as to reduce the weight of the plunger block 301 and facilitate the connection between the elastic member 301 and the plunger block 301.

[0034] The water outlet 102 is arranged in multiple along the axial direction of the inner tube 1. The elastic member 302 is arranged in the axial direction. By arranging multiple water outlets 102 in the axial direction, when the flow rate of the water flow is fast and the water flow is large, the compression degree of the elastic member 302 is greater, so that the water flow can flow to the outer tube 2 through more water outlets 102, thereby automatically adjusting the position of the plunger block 301 according to the water flow, and ensuring the efficiency and stability of drainage.

[0035] The buffer assembly 3 further comprises a guide rod 304, which is in sliding connection with the inner tube 1, and the plunger block 301 is connected with the guide rod 304. In the embodiment, the guide rod 304 is inserted into the closed end 101 at one end and connected with the plunger block 301 at the other end. By arranging the guide rod 304, the guide rod 304 is allowed to slide in the closed end 101 when the plunger block 301 moves, and the movement of the plunger block 301 is guided, so that the movement of the plunger block 301 is smoother. The guide rod 304 is detachably connected with the plunger block 301 at one end and detachably connected with the closed end 101 at the other end, so that the guide rod 304 can be separated from the plunger block 301 and the inner tube 1, thereby facilitating the maintenance of the entire buffer assembly 3. The guide rod 304 is detachably connected with the plunger block 301 through threads, so that the sealing effect is better. The guide rod 304 is detachably connected with the closed end 101, specifically, the guide rod 304 is inserted into the closed end 101, and a nut is arranged on the exposed part to prevent the guide rod 304 from being separated from the closed end 101. In the embodiment, the guide rod 304 can be preferably a screw rod, and by adjusting the position of the nut on the screw rod, the distance between the closed end 101 and the plunger block 301 can be adjusted, thereby adjusting the initial compression degree of the elastic member 302.

[0036] The buffer assembly 3 further comprises a fixing seat 305, and the elastic member 302 is a spring which is sleeved on the fixing seat 305. By arranging the fixing seat 305, the compression of the elastic member 302 is guided, so that the movement of the plunger block 301 is smoother. At the same time, the two ends of the spring can be respectively abutted with the inner tube 1 and the plunger block 301, so that the spring is convenient to disassemble and can be replaced after being used for a period of time, thereby prolonging the service life of the entire pipe fitting.

[0037] The inner wall of the outer tube 2 is in a wave structure 201. On the one hand, it significantly reduces the noise of water flow, creating a quiet indoor environment for the occupants; on the other hand, it slows down the gravity effect of the straight-line acceleration of the water flow, thereby effectively reducing the impact and damage of the water hammer generated during drainage on the pipe material and pipe fitting. The wave structure 201 buffers the water flow flowing to the outer tube 2 again, reducing the flow rate of the water flow.

[0038] Embodiment three

[0039] On the basis of the embodiment one or the embodiment two, in the embodiment, as shown in Figure 2 The cross section of the water outlet 102 gradually increases from the inner tube 1 to the outer tube 2, that is, the water outlet 102 has a flow guide slope 121 which gradually inclines to the outer tube 2 along the water flow direction. The flow guide slope 121 guides the water flow of the water outlet 102, ensuring the smoothness of drainage, thereby avoiding pipeline vibration and noise pollution.

[0040] As shown in Figure 1 and Figure 2As shown, the inner tube 1 is provided with a flow guide block 4 beside the water outlet 102, and the flow guide block 4 is preferably located on the side of the water outlet 102 close to the closed end 101. By arranging the flow guide block 4, the distance between the outer wall of the inner tube 1 and the inner wall of the outer tube 2 is shortened, the guiding distance is increased, the water flow can flow along the inner wall of the outer tube 2, the impact of the water flow is further reduced, and the pipeline vibration and noise pollution are avoided. The flow guide block 4 gradually inclines to the outer tube 2 along the water flow direction. By arranging the flow guide block 4 to be inclined, the water flow still flows along the axial direction of the pipeline, the smoothness of drainage is ensured, and the pipeline vibration and noise pollution are avoided.

[0041] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0042] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not a limitation on the embodiments of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A drainage pipe fitting to prevent water hammer, characterized in that: The invention comprises an inner tube (1) and an outer tube (2); one end of the inner tube (1) is set as a closed end (101), and a water outlet (102) is provided on the side wall; the outer tube (2) is sleeved outside the inner tube (1) and connected to the inner tube (1); the water outlet (102) is communicated with the outer tube (2).

2. The water hammer proof drainage pipe fitting according to claim 1, characterized in that: The invention also includes a buffer assembly (3), wherein the buffer assembly (3) includes a plunger block (301) and an elastic member (302), wherein the plunger block (301) is sealingly and slidingly connected to the inner tube (1), and the two ends of the elastic member (302) are respectively connected to the plunger block (301) and the inner tube (1); when the elastic member (302) is in an initial state, the water outlet (102) is located between the plunger block (301) and the closed end (101).

3. The water hammer proof drainage pipe fitting according to claim 2, characterized in that: The buffer assembly (3) further comprises a buffer pad (303), and the buffer pad (303) is mounted and connected to the plunger block (301).

4. The water hammer proof drainage pipe fitting according to claim 2, characterized in that: A plurality of water outlets (102) are provided along the axial direction of the inner tube (1).

5. The water hammer proof drainage pipe fitting according to claim 2, characterized in that: The buffer assembly (3) further comprises a guide rod (304), the guide rod (304) being slidably connected to the inner tube (1), and the plunger block (301) being connected to the guide rod (304).

6. The water hammer proof drainage pipe fitting according to claim 2, characterized in that: The buffer assembly (3) further comprises a fixing seat (305), the elastic member (302) is configured as a spring, and the spring is sleeved on the fixing seat (305).

7. The water hammer proof drainage pipe fitting according to any one of claims 1 to 6, characterized in that: The inner wall of the outer tube (2) is configured as a wave structure (201).

8. The water hammer proof drainage pipe fitting according to any one of claims 1 to 6, characterized in that: The cross section of the water outlet (102) gradually increases from the inner tube (1) to the outer tube (2).

9. The water hammer proof drainage pipe fitting according to any one of claims 1 to 6, characterized in that: A guide block (4) is provided on the outer wall of the inner tube (1), and the guide block (4) is located beside the water outlet (102).

10. The water hammer proof drainage pipe fitting according to claim 9, characterized in that: The guide block (4) gradually tilts toward the outer tube (2) along the flow direction of the water.

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