CN201177122Y

CN201177122Y - Joint for pipe dredger

Info

Publication number: CN201177122Y
Application number: CNU2008200833000U
Authority: CN
Inventors: 林文权
Original assignee: NINGBO ZHENHAI MAIKE TOOL CO Ltd
Current assignee: NINGBO ZHENHAI MAIKE TOOL CO Ltd
Priority date: 2008-02-26
Filing date: 2008-02-26
Publication date: 2009-01-07
Anticipated expiration: 2018-02-26

Abstract

The utility model relates to a connector for a pipeline dredger, which comprises a valve body, wherein, the front end of the valve body can be directly or indirectly connected with a tap, and the valve has a through channel. A spool having a concave cavity is arranged inside the valve. A liquid seal is directly or indirectly formed between the outer surface of the front of the valve and the inner surface of the front of the through channel. The front end of the concave cavity is open, and the back end is close. A plurality of outlets are formed on the side wall of the concave cavity, and a plurality of air inlets are formed on the side wall of the valve. The spool is provided with an elastic sleeve which is made of flexible material and has an open back end. The front end of the elastic sleeve is relatively fixed with the spool. A gap is reserved between the outer surface of the elastic sleeve and the inner surface of the back of the through channel. In the state of conducting water, the elastic sleeve expands and seals the inlet holes. In the state of without water, the elastic sleeve contracts and seals the outlets, and the air inlets are communicated with the back of the through channel. The utility model provides the connector for the pipeline dredger, which can effectively prevent the sewage from reflowing and can ensure the sewage to be discharged.

Description

A kind of joint that is used for pipeline drainer

Technical field

The utility model relates to a kind of pipeline drainer component, relates in particular to a kind of joint that is used for pipeline drainer.

Background technique

In the daily life, drainage pipeline is easily stopped up by dirt, therefore on the market multiple pipeline drainer has appearred, what specialty pipe-dredging personnel often used is a kind of mechanical dredging machine, it is to twist out obturator in the pipeline by the mechanical rotation reamer, and the defective of this machine is the comparison heaviness, complex structure cost height, and need the technical professional to operate, be not suitable for daily family and use.Also having a kind of is more easy dredging tool, is commonly called as water and pulls out son, though this instrument is simple in structure, cost is low, and its suction is less, and the mediation effect is undesirable, and often has addle to flash in use, and is very unhygienic.

The main food starch group food of family of many countries such as present America and Europe, and the easier blocking pipe of starch and carbohydrate admixture.For this reason, a kind of pressure of water that utilizes having occurred washes away the obstruction in the pipeline, realize dredging pipeline purpose pipeline drainer, as a patent No. is that the Chinese utility model patent " pipeline drainer " of ZL91212787.2 (notification number is CN2088907Y) has disclosed the structure so a kind of, a kind of pipeline drainer, it is connected hard tube and water filling head and is formed by water supply hose.During use water supply hose is connected on the water tap, a water filling horn mouth is pushed down the pipeline mouth of pipe that is blocked, and turns on water tap, utilizes the pressure of tap water itself, just can wash away stifled foreign material in the pipeline at short notice, makes pipeline unimpeded.There is certain defective in this pipeline drainer, because a water filling horn mouth is not provided with the anti-backflow structure, so it closes water tap after using end, can form certain hollow because water supply hose is inner, sewage in the pipeline can pour in down a chimney backflow, and then the polluted water tap, also has it can not make the interior water capacity Evacuable of pipeline, after we take out flexible pipe in the pipeline, the water that remains in the flexible pipe can spill, and pollutes ground, therefore uses dangerous health.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of can effectively prevent sewage backflow and can guarantee the joint that is used for pipeline drainer that sewage is got rid of at above-mentioned prior art present situation, and this joint has health safe in utilization, simple and reasonable advantage.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of joint that is used for pipeline drainer, comprise that front end can directly or indirectly link to each other and have the valve body of penetrating via with water tap, be provided with a spool with cavity in the valve body, it is characterized in that: direct or indirect liquid sealing between the front inner surface of described spool forward outer surface and penetrating via, described cavity front opening back-end closure, have several water outlets on the sidewall of cavity, have several inlet holes on the described body wall, also sheathed one is made and the elastic sleeve of open rearward end by flexible material on the spool, elastic sleeve front end and spool relative fixed, has the gap between elastic sleeve outer surface and the penetrating via rear inner surface, under the water flowing state, elastic sleeve expands inlet hole is sealed, under the state of cutting off the water supply, elastic sleeve is shunk the water outlet sealing, and inlet hole is communicated with the penetrating via rear portion.

For this joint can directly be linked to each other with the flexible pipe of pipeline drainer, above-mentioned valve rear end has the protruding connecting head in a back, the all sides of connecting head have bulge loop, the valve rear end pressure cap that also has been threaded, has the gap between the inwall of pressure cap and the connecting head perisporium, described bulge loop is positioned at this gap, and has the gap between bulge loop and the pressure cap inwall.With on hose proof and the connecting head, again pressure cap is threaded in valve rear end during connection, so just flexible pipe tightly can be connected on the connecting head.

Be better and spool relative fixed with elastic sleeve, the front portion of above-mentioned spool exterior edge face has convex shoulder, correspondence, and the front portion in the valve body has interior omoplate, elastic sleeve front end week, side had a protuberance, and this protuberance is fixed between the convex shoulder and the interior omoplate on the valve body on spool.For further strengthening sealing between the valve inner element, also be provided with a washer sealing between the protuberance of above-mentioned elastic sleeve front end and the interior omoplate of valve body.

For simplifying the structure of valve body, better that spool is spacing in valve body, above-mentioned valve body front end internal thread is connected with one with the gland of spool axial limiting in valve body, one front end is shaped on the externally threaded link that is connected with water tap, its convex shoulder that is glanded front end is compressed on the front end of valve body, has the intake tunnel that axially runs through and communicate with the cavity of spool on the described gland.Certainly also can directly on valve body front end outer circumferential face, be shaped on the outside thread that is threaded with water tap.Pad is provided with packing ring between above-mentioned gland rear end and the spool front end.

Inlet hole on the above-mentioned body wall is to have four for good, and the water outlet on the spool is to have four for good.

Compared with prior art, advantage of the present utility model is: during use, valve body front end water receiving tap, water is from the water outlet ejection of spool, the elastic sleeve support is expanded greatly, and then the inlet hole on the valve body is blocked, reach the effect of sealing, water will enter in the pipeline drainer from by the ejection of penetrating via rear end like this; When water tap is closed, elastic sleeve is shunk, with the sealing of the water outlet on the spool, inlet hole then is communicated with penetrating via, and water only is subjected to gravity and ambient pressure effect, down fall after rise, therefore can not pour in down a chimney from the water outlet of spool in water tap, can not pollute tap water, and can residual addle in the flexible pipe, the water of effectively avoiding remaining in the flexible pipe can spill, and pollutes ground.This joint also has advantage rational in infrastructure, easy to assembly.

Description of drawings

Fig. 1 is the utility model embodiment's a structure sectional view (water flowing state);

Fig. 2 is the utility model embodiment's structure sectional view (state of cutting off the water supply);

Fig. 3 is the utility model embodiment's a structure broken away view.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Be a preferred embodiment of the present utility model as shown in Figure 1, 2.

A kind of joint that is used for pipeline drainer, comprise that one has the valve body 1 of penetrating via 11, the valve body 1 general copper product that adopts is made, described penetrating via 11 is along the axial setting of valve body 1, and valve body 1 rear end has the protruding connecting head 13 in a back, and connecting head 13 all sides have bulge loop 14, the valve body 1 rear end pressure cap 4 that also has been threaded, have the gap between the inwall of pressure cap 4 and connecting head 13 periphery walls, described bulge loop 14 is positioned at this gap, and has the gap between bulge loop 14 and pressure cap 4 inwalls.On the hose proof and connecting head 13 with pipeline drainer during connection, again pressure cap 4 is threaded in valve body 1 rear end, so just flexible pipe tightly can be connected on the connecting head.Pipeline drainer can adopt the applicant to apply for, application number is " pipeline drainer " patent application document of CN200720108782.6.

The elastic sleeve 3 that is provided with a spool 2 with cavity 21 in the described valve body 1, makes by flexible material.Described cavity 21 front opening back-end closures, the front opening of cavity 21 forms water intake, has four water outlets 22 on the sidewall of cavity 21, has four inlet holes 12 on described valve body 1 sidewall.

The front portion of described spool 2 exterior edge faces has convex shoulder 23, corresponding, front portion in the valve body 1 has interior omoplate 15, described elastic sleeve 3 open rearward end, and be set on the spool 2, elastic sleeve 3 front ends week, side had a protuberance 31, and this protuberance 31 is pressed between the convex shoulder 23 and the interior omoplate 15 on the valve body 1 that is fixed on the spool 2.For further strengthening sealing between valve body 1 inner member, also be provided with a packing ring 5 sealings between the protuberance 31 of described elastic sleeve 3 front ends and the interior omoplate 15 of valve body 1.Have the gap between elastic sleeve 3 outer surfaces and penetrating via 11 rear inner surface, under the water flowing state, elastic sleeve 3 expands inlet hole 12 sealings, and under the state of cutting off the water supply, elastic sleeve 3 is shunk water outlet 22 sealings, and inlet hole 12 is communicated with penetrating via 11 rear portions.

Described valve body 1 front end internal thread is connected with one with the gland 6 of spool 2 axial limitings in valve body 1, one front end is shaped on the link 7 of the outside thread 71 that is connected with water tap, its convex shoulder 61 that is glanded 6 front ends is compressed on the front end of valve body 1, has the intake tunnel 62 that axially runs through and communicate with the cavity 21 of spool 2 on the described gland 6.Pad is provided with packing ring 8 between above-mentioned gland 6 rear ends and spool 2 front ends.

Working principle of the present utility model and process are as follows:

As shown in Figure 2, during use, the link 7 front ends water tap that is threaded, water are from water outlet 22 ejections of spool 2, because the pressure of water is with big expansion of elastic sleeve 3 supports, form the gap between elastic sleeve 3 and the spool 2, elastic sleeve 3 blocks four inlet holes 12 on the valve body 1 simultaneously, reaches the effect of sealing, and water will flow into penetrating via 11 rear ends from the gap between elastic sleeve 3 and the spool 2 like this, finally enter in the pipeline drainer, pipeline is dredged by pipeline drainer.

As shown in Figure 1, after mediation finishes, close water tap, elastic sleeve 3 is not subjected to the extruding of current and shrinks, after elastic sleeve 3 is shunk the water outlet on the spool 2 22 is sealed, again form the gap between elastic sleeve 3 exterior edge faces and valve body 1 inwall, so penetrating via 11 is in communication with the outside by inlet hole 12, the water that remain in pipeline drainer and the joint this moment only is subjected to gravity and ambient pressure effect, down falls after rise, and sewage can not pour in down a chimney in water tap from the water outlet 22 of spool 2, can not remain in the flexible pipe yet, therefore promptly can not pollute tap water, can not spill yet, pollute ground.

Claims

1, a kind of joint that is used for pipeline drainer, comprise that front end can directly or indirectly link to each other and have the valve body (1) of penetrating via (11) with water tap, be provided with a spool (2) with cavity (21) in the valve body (1), it is characterized in that: direct or indirect liquid sealing between the front inner surface of described spool (2) forward outer surface and penetrating via (11), described cavity (21) front opening back-end closure, have several water outlets (22) on the sidewall of cavity (21), have several inlet holes (12) on described valve body (1) sidewall, spool (2) is gone up also sheathed one and is made and the elastic sleeve (3) of open rearward end by flexible material, elastic sleeve (3) front end and spool (2) relative fixed, has the gap between elastic sleeve (3) outer surface and penetrating via (11) rear inner surface, under the water flowing state, elastic sleeve (3) expands inlet hole (12) is sealed, under the state of cutting off the water supply, elastic sleeve (3) is shunk water outlet (22) sealing, and inlet hole (12) is communicated with penetrating via (11) rear portion.

2, the joint that is used for pipeline drainer according to claim 1, it is characterized in that: described valve body (1) rear end has the protruding connecting head (13) in a back, the all sides of connecting head (13) have bulge loop (14), valve body (1) the rear end pressure cap (4) that also has been threaded, has the gap between the inwall of pressure cap (4) and connecting head (13) perisporium, described bulge loop (14) is positioned at this gap, and has the gap between bulge loop (14) and pressure cap (4) inwall.

3, the joint that is used for pipeline drainer according to claim 1 and 2, it is characterized in that: the front portion of described spool (2) exterior edge face has convex shoulder (23), corresponding, front portion in the valve body (1) has interior omoplate (15), elastic sleeve (3) front end week, side had a protuberance (31), and this protuberance (31) is fixed between the convex shoulder (23) and the interior omoplate (15) on the valve body on spool.

4, the joint that is used for pipeline drainer according to claim 3 is characterized in that: also be provided with a packing ring (5) sealing between the protuberance (31) of described elastic sleeve (3) front end and the interior omoplate (15) of valve body.

5, the joint that is used for pipeline drainer according to claim 3, it is characterized in that: described valve body (1) front end internal thread is connected with one with the gland (6) of spool (2) axial limiting in valve body, one front end is shaped on the link (7) of the outside thread (71) that is connected with water tap, its convex shoulder (61) that is glanded (6) front end is compressed on the front end of valve body (1), has the intake tunnel (62) that axially runs through and communicate with the cavity (21) of spool (2) on the described gland (6).

6, the joint that is used for pipeline drainer according to claim 5 is characterized in that: pad is provided with packing ring (8) between described gland (6) rear end and spool (2) front end.

7, the joint that is used for pipeline drainer according to claim 1 is characterized in that: the inlet hole on the described body wall (12) has four, and the water outlet on the spool (22) has four.