CN206911871U

CN206911871U - A kind of rigid connecting type air pressure dredge

Info

Publication number: CN206911871U
Application number: CN201720851604.6U
Authority: CN
Inventors: 龙杰武
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-07-13
Filing date: 2017-07-13
Publication date: 2018-01-23
Anticipated expiration: 2027-07-13

Abstract

A kind of rigid connecting type air pressure dredge is the utility model is related to, the dredge includes inflator body, connector, support tube, sealing breather valve and ventilation plug；Inflator body includes stack shell, the piston being movably arranged in stack shell, handle and the distance rod of connection piston and handle；Connector is fixedly mounted on the gas outlet of stack shell front end, and sealing breather valve is arranged in the venting channels of connector；One end of support tube is fixedly connected with the front end of connector, and is connected with the venting channels of connector, and ventilation plug fixes the other end for being set in support tube；Support tube is metal tube or plastic conduit.Rigid connecting type air pressure dredge of the present utility model is by using the larger support tube of hardness, so that the pressure being applied on inflator passes to ventilation plug very well, so that ventilation plug is bonded well with inner-walls of duct, in addition, ventilation plug uses the less EVA plastic foams of hardness, improves the sealing between ventilation plug and inner-walls of duct.

Description

A kind of rigid connecting type air pressure dredge

Technical field

It the utility model is related to pipe dredging device technical field, and in particular to a kind of rigid connecting type air pressure dredge.

Background technology

During present pipe-dredging, the most of the time still uses elongated thin bamboo strips used for weaving bar, inserts in the pipeline of blocking, Tamper is disclosed out by twitching thin bamboo strips used for weaving bar back and forth, thin bamboo strips used for weaving bar is only adapted to straight pipeline or few curved pipeline, when thin bamboo strips used for weaving bar is used When more bend pipes, the pipeline that sharp turn is managed, long tube and blockage ratio are more serious, thin bamboo strips used for weaving bar is at all helpless.Traditional Manual pipeline Dredging machine, the fulcrum do not fixed, machine direction and fixed position, another hand turn motivation is held with a hand support during work The handle of device, because the active force of two hands can not be totally absorbed on dredging axle, particularly when dredging axle is obstructed, machine shakes Shake, operator feels to make not energetically.Although also there is the vapour-pressure type dredge that some utilize air pressure dredging pipeline in the market, It is and flexible connecting tube relatively low using hardness between these vapour-pressure type dredges ventilation plug and inflator, when deployed, After giving inflator certain pressure, connecting tube can bend because hardness is relatively low, can not give ventilation plug enough pressure It is set more preferably to be bonded with duct wall, in addition, the ventilation plug of existing vapour-pressure type dredge is using the larger plasticized polyurethane of hardness Material or Maranyl, can not preferably be bonded with duct wall, gas leakage easily occur, so as to influence to dredge effect.

Utility model content

The purpose of this utility model is to provide a kind of rigid connecting type air pressure dredge, to solve existing air pressure dredge The problem of not close and sealing effectiveness difference being bonded with inner-walls of duct in the presence of ventilation plug.

To achieve the above object, the utility model provides a kind of rigid connecting type air pressure dredge, the rigid connecting type air pressure Dredge includes inflator body, the internal connector for being provided with venting channels, reaches the sealing that certain air pressure can just turn on Breather valve, the internal ventilation plug for being provided with venting channels；The inflator body includes stack shell, is movably arranged in the stack shell Piston, the distance rod of handle and the connection piston and the handle；The rigid connecting type air pressure dredge also includes support Pipe, the connector are fixedly mounted on the gas outlet of the stack shell front end, and the sealing breather valve is arranged on the connector In venting channels；One end of the support tube is fixedly connected with the front end of the connector, and is led to the ventilation of the connector Road connects, and the ventilation plug fixes the other end for being set in the support tube；The support tube is metal tube or rigid plastics Pipe.

Preferably, the sealing breather valve includes housing, air rammer, connecting rod, spring and the pressure limiting part of both ends open, institute Stating pressure limiting part includes pressure-limiting loop and fixture, and fixing hole and passage are provided with the fixture, and the fixture fixes peace Mounted in the front port of housing, the pressure-limiting loop is located at the enclosure interior and is connected by some support bars with fixture, described Air rammer is movably arranged in the housing, and rubber seal is arranged with the circumference of the air rammer, the connecting rod One end is fixedly connected with the air rammer, and the other end is movably inserted in fixing hole, and the spring is set in the connecting rod On, the edge of the housing rear end mouth extends radially inwardly to form an annular baffle ring.

Preferably, the external diameter of the rubber seal is more than the internal diameter of the pressure-limiting loop and the internal diameter of the housing.

Preferably, it is arranged with sealing ring on the cylinder of the housing.

Preferably, the material of the ventilation plug is EVA plastic foams.

Preferably, the ventilation plug is stained with to connect by the different EVA plastic foam blocks of two pieces of hardness forms, rear end EVA plastics The hardness of foam block is more than the hardness of front end EVA plastic foam blocks.

Preferably, the ventilation plug is in round estrade.

Preferably, some fins are provided with the cylinder of the ventilation plug.

The utility model has the following advantages that：Rigid connecting type air pressure dredge of the present utility model is larger by using hardness Support tube so that the pressure being applied on inflator passes to ventilation plug very well so that ventilation plug and inner-walls of duct are very Good fitting, in addition, ventilation plug uses the less EVA plastic foams of hardness, improve between ventilation plug and inner-walls of duct Sealing.

Brief description of the drawings

Fig. 1 is the cross-sectional view of the utility model sealing ring type air pressure dredge.

Fig. 2 is the structural representation of the utility model sealing breather valve.

Fig. 3 is the cross-sectional view of the utility model sealing breather valve.

Fig. 4 is the structural representation of the utility model pressure limiting part.

Embodiment

Following examples are used to illustrate the utility model, but are not limited to the scope of the utility model.

Embodiment 1

As shown in figure 1, the sealing ring type air pressure dredge includes inflator body 1, connector 2, sealing breather valve 3, branch Stay tube 4 and ventilation plug 5.Inflator body 1 includes stack shell 11, piston 12, handle 13 and distance rod 14.Piston 12 is in back-off Bowl-shape, piston 12 is movably arranged in stack shell 11, is sealed between piston 12 and stack shell 11, and handle 13 passes through distance rod 14 and piston 12 connections, when pulling with hand or driving handle 13, piston 12 can be achieved and posteriorly or anteriorly move.When piston 12 travels forward, Air between piston 12 and connector 2 is compressed, and the pressure increase of air, when piston 12 moves backward, piston 12 is with connecting The pressure of air reduces between joint 2, and under external air pressure effect, the crimp of piston 12, extraneous air is from piston Gap between 12 and the inwall of stack shell 11 enters between piston 12 and connector 2, and structure and the bicycle of inflator body 1 are inflated Barrel structure is identical, is no longer discussed in detail herein.Connector 2 is threadedly mounted to going out for the front end of stack shell 11 by being arranged on cylinder In gas port, the inside of connector 2 is provided with venting channels.

As shown in Figure 2,3, 4, sealing breather valve 3 includes housing 31, air rammer 32, connecting rod 33, spring 34 and pressure limiting part 35, housing 31 is in the tubular structure of both ends open, and pressure limiting part 35 includes pressure-limiting loop 351 and fixture 352, in fixture 352 Heart position is provided with a fixing hole 353, and some passages 354 are provided with around fixing hole 353, and fixture 352 fixes peace Mounted in the front port of housing 31, in annular shape, pressure-limiting loop 351 is located at the inside of housing 31 and passes through some support bars pressure-limiting loop 351 356 are connected with fixture 352, and the inwall of pressure-limiting loop 351 and housing 31 is affixed, and air rammer 32 is movably arranged in housing 31, Rubber seal 321 is arranged with the circumference of air rammer 32, the external diameter of rubber seal 321 is more slightly larger than the internal diameter of housing 31, gas After piston 32 is arranged in housing 31, the inwall of housing 31 is squeezed in the periphery of rubber seal 321, makes itself and housing 31 Inwall is closely affixed, and ensures to realize sealing between rubber seal 321 and the inwall of housing 31, meanwhile, rubber seal 321 Internal diameter of the external diameter also than pressure-limiting loop 351 is slightly larger, ensures only when the air pressure that air rammer 32 is subject to reaches certain pressure value Air rammer 32 could be from pressure-limiting loop 351 by the way that spring 34 is compressed, the completion pressure leak process of air rammer 32, in stack shell 11 afterwards Atmospheric pressure reduces, and when the air pressure that air rammer 32 is subject to is less than certain pressure value, the spring 34 compressed extends, bullet Spring 34 promotes air rammer 32 by pressure-limiting loop 351 and is moved to initial position, rubber seal 321 and the inwall of housing 31 Sealing is realized again.One end of connecting rod 33 is fixedly connected with the preceding surface of air rammer 32, and the other end movably inserts fixing hole In 353, spring 34 is set on connecting rod 33, and one end of spring 34 withstands on the preceding surface of air rammer 32, and the other end withstands on fixation On part 352, the edge of the rear port of housing 31 extends radially inwardly to form an annular baffle ring 312.When with hand push fixed handle 13, piston 12 is travelled forward, and the air between piston 12 and connector 2 is compressed, and the pressure increase of air, air push gas Piston 32 is moved to the direction close to fixture 352.When pulling with hand handle 13, piston 12 moves backward, and piston 12 is with connecting Atmospheric pressure between joint 2 reduces, and air rammer 32 is blocked by baffle ring 312 and can not moved, and air rammer 32 and housing 31 It is sealing again between inwall, air can not be by the way that therefore, under external air pressure effect, piston 12 is deformed, empty Gas is entered between piston 12 and connector 2 by the gap between piston 12 and the inwall of stack shell 11.Further, in order to prevent shell Gas leakage between the outer surface of body 31 and the venting channels of connector 2, sealing ring 311 is also arranged with the cylinder of housing 31.

Support tube 4 is tubular structure, and one end of support tube 4 is inserted blend compounds cementation in the front port of connector 2 and determined, supports Pipe 4 connects with the venting channels of connector 2, and ventilation plug 5, which is fixed, is set in the other end of support tube 4, the outer wall of support tube 4 with Plug 5 ventilate by gluing connection, prevents ventilation plug 5 from coming off.Support tube 4 is metal tube or plastic conduit, preferred hardness Larger metal tube, using the metal tube that hardness is larger so that the pressure being applied on inflator can pass to ventilation very well Plug 5 so that ventilation plug 5 is bonded well with inner-walls of duct.

As shown in figure 1, ventilation plug 5 be in round estrade, the material for plug 5 of ventilating is EVA plastic foams, EVA plastic foams Hardness it is smaller, ventilation plug 5 is stained with to connect and formed by the different EVA plastic foam blocks of two pieces of hardness, rear end EVA plastic foam blocks Hardness is more than the hardness of front end EVA plastic foam blocks.When plug 5 of ventilating is squeezed due to the EVA plastic foam blocks of rear end Hardness is larger, and the EVA plastic foam block hardness of front end is smaller, after EVA plastic foams block extruding front end EVA plastic foam blocks make It deforms, and front end EVA plastic foams block is preferably bonded with inner-walls of duct, prevents gas leakage effect dredging effect. Further, some fins 51 are provided with the cylinder of ventilation plug 5, fin 51, which is squeezed, preferably to be pasted with inner-walls of duct Close, further improve the sealing of ventilation plug 5.

Operation principle：In use, a hand holds stack shell 11, another holds handle 13 of stopping, and ventilation plug 5 is placed on Waterpipe oral area, stack shell 11 is firmly pressed, pressing stack shell 11 gives pressure transmission to ventilation plug 5 by support tube 4, plug of ventilating 5 deform and are bonded closely with the inwall of pipeline, pull with hand handle 13, and piston 12 moves backward, piston 12 and connector 2 Between atmospheric pressure reduce, and be to seal between air rammer 32 and the inwall of housing 31, air can not be led to by sealing Air valve 3 enters, therefore, external air pressure effect under, piston 12 is deformed, outside air by the surrounding of piston 12 with Gap between the inwall of stack shell 11 enters between piston 12 and connector 2, when being full of air in stack shell 11, with hand push fixed handle 13, piston 12 is travelled forward, and the air between piston 12 and connector 2 is compressed, the pressure increase of air, and air push is pneumatic Piston 32 is moved from initial position to the direction close to fixture 352, and spring 34 is compressed, when air rammer 32 moves to pressure limiting During the rear end face of ring 351, because the external diameter of rubber seal 321 is more than the internal diameter of pressure-limiting loop 351, pressure-limiting loop 351 prevents pneumatically Piston 32 travels forward, and continues to press on handle 13, and the atmospheric pressure between piston 12 and connector 2 further increases, and works as air After the pressure being applied on air rammer 32 reaches certain pressure value, rubber seal 321 is diminished by compression, its external diameter, The moment of air rammer 32 continues to move to close to the direction of fixture 352 by pressure-limiting loop 351, due to the presence of support bar 356, Gap between rubber seal 321 and the inwall of housing 31 be present, compressed air moment is flowed out by gap from passage 354 Enter the venting channels of connector 2 afterwards, the venting channels of last support tube 4 and ventilation plug 5 enter in pipeline, stifled due to ventilating First 5 are bonded closely with inner-walls of duct, and for tamper again by inner pipeline plug plug, pipeline is internally formed a closing space, substantial amounts of empty Gas moment enters inside pipeline, and air applies moment impact pressure to the tamper in pipeline, tamper is dispelled out, so as to reach To the effect of dredging pipeline.Air rammer 32 complete pressure leak process after, in stack shell 11 atmospheric pressure reduce, when air rammer 32 by When the air pressure arrived is less than certain pressure value, the spring 34 compressed extends, and spring 34 promotes air rammer 32 reversely to move Move and initial position is moved to by pressure-limiting loop 351, rubber seal 321 and the inwall of housing 31 realize sealing again.It is if stifled Plug thing does not dispel out, and only needs drawing handle 13 repeatedly so that the pressure inside pipeline constantly increases, and most tamper dispels at last Open, by pipe-dredging.Therefore, using sealing ring type air pressure dredge of the invention, no matter how complicated the shape of pipeline is, also not It is serious by what kind of is blocked, it can wash tamper open using the huge impulse force of compressed air.

Although above having made detailed description to the utility model with generality explanation and specific embodiment, On the basis of the utility model, it can be modified or improved, this is apparent to those skilled in the art 's.Therefore, the these modifications or improvements on the basis of without departing from the utility model spirit, belonging to the utility model will Seek the scope of protection.

Claims

1. a kind of rigid connecting type air pressure dredge, the rigid connecting type air pressure dredge includes inflator body, internal be provided with is led to The connector of gas passage, reach sealing breather valve, the internal ventilation for being provided with venting channels that certain air pressure can just turn on and block up Head；The inflator body include stack shell, the piston being movably arranged in the stack shell, handle and the connection piston with it is described The distance rod of handle；Characterized in that, the rigid connecting type air pressure dredge also includes support tube, the connector is fixedly mounted In the gas outlet of the stack shell front end, the sealing breather valve is arranged in the venting channels of the connector；The support tube One end be fixedly connected with the front end of the connector, and connected with the venting channels of the connector, the ventilation plug is consolidated Surely it is set in the other end of the support tube；The support tube is metal tube or plastic conduit.

2. rigid connecting type air pressure dredge according to claim 1, it is characterised in that the sealing breather valve includes both ends Housing, air rammer, connecting rod, spring and the pressure limiting part of opening, the pressure limiting part include pressure-limiting loop and fixture, the fixture On be provided with fixing hole and passage, the fixture is fixedly mounted on the front port of housing, and the pressure-limiting loop is located at the shell Internal portion is simultaneously connected by some support bars with fixture, and the air rammer is movably arranged in the housing, described pneumatic Rubber seal is arranged with the circumference of piston, one end of the connecting rod is fixedly connected with the air rammer, and the other end can live Insert dynamicly in fixing hole, the spring is set on the connecting rod, and the edge of the housing rear end mouth extends radially inwardly shape The baffle ring annular into one.

3. rigid connecting type air pressure dredge according to claim 2, it is characterised in that the external diameter of the rubber seal is big In the internal diameter of the pressure-limiting loop and the internal diameter of the housing.

4. rigid connecting type air pressure dredge according to claim 2, it is characterised in that be arranged with the cylinder of the housing Sealing ring.

5. rigid connecting type air pressure dredge according to claim 1, it is characterised in that it is described ventilation plug material be EVA plastic foams.

6. rigid connecting type air pressure dredge according to claim 5, it is characterised in that the ventilation plug is by two pieces of hardness Different EVA plastic foam blocks, which are stained with to connect, to be formed, and the hardness of rear end EVA plastic foam blocks is more than the hard of front end EVA plastic foam blocks Degree.

7. rigid connecting type air pressure dredge according to claim 6, it is characterised in that the ventilation plug is in round estrade.

8. rigid connecting type air pressure dredge according to claim 6, it is characterised in that set on the cylinder of the ventilation plug It is equipped with some fins.