CN207723149U - A kind of cleaning device for inner wall of pipeline - Google Patents

Abstract

The utility model discloses a pipeline inner wall cleaning device, which relates to the field of pipeline cleaning and comprises a front traveling mechanism, a telescopic mechanism and a rear traveling mechanism which are sequentially connected from front to back; the front traveling mechanism and the rear traveling mechanism have the same structure and are mirror images of the telescopic mechanism. Setting; the diverging ends of the front traveling mechanism and the rear traveling mechanism are provided with a cleaning mechanism; the cleaning mechanism is provided with a high-pressure nozzle connected to an external water source, and the outlet of the high-pressure nozzle faces the inner wall of the pipeline. The cleaning mechanism includes a first motor fixedly connected to the front end of the front traveling mechanism or the rear end of the rear traveling mechanism, a disc fixedly connected to the output shaft of the first motor, and a high-pressure nozzle detachably connected to the outer surface of the disc; A water channel is provided with one end communicating with the high-pressure nozzle and the other end communicating with the external water source. The utility model realizes the effect of using the high-pressure water jet to strip and clean the dirt on the inner surface of the pipeline by arranging the traveling mechanism and the high-pressure nozzle.

Description

A pipe inner wall cleaning device

technical field

The utility model relates to the field of pipeline cleaning, in particular to a pipeline inner wall cleaning device.

Background technique

For pipelines that have been used for a long time, the solidification of oil sludge and rust in the pipeline will cause the diameter of the original pipeline to become smaller; the sludge in the pipeline will produce hydrogen sulfide gas, which will cause environmental pollution and easily cause explosion; the acid and alkali substances in the waste water will easily corrode the pipeline wall; Unscheduled removal of foreign matter in the pipeline will cause pipeline blockage; steel pipes, steel plates, stainless steel, etc., which are raw materials for metal pipelines, will form rolling skin during rolling; pipelines will form rust, welding slag and anti-corrosion coatings during the process of manufacturing, storage, transportation and installation. Oil-based antirust agent, dust, sand, cement, insulation materials and other impurities covering the pipeline. The above-mentioned impurities such as scale, rust, welding slag, anti-rust agent and sediment seriously affect the normal use of the pipeline, so it is necessary to clean the pipeline to restore the surface of the material itself in the pipeline.

Utility model content

The purpose of the utility model is to provide a pipeline inner wall cleaning device, which is used to solve the problem in the prior art that the pipeline is blocked due to irregular removal of foreign matter in the pipeline. The utility model realizes the effect of stripping and cleaning the dirt on the inner surface of the pipeline by using the high-pressure water jet by arranging the traveling mechanism and the high-pressure nozzle.

The utility model is realized through the following technical solutions:

A cleaning device for the inner wall of a pipeline, comprising a front traveling mechanism, a telescopic mechanism, and a rear traveling mechanism sequentially connected from front to back; A cleaning mechanism is provided at the diverging ends; the cleaning mechanism is provided with a high-pressure nozzle connected to an external water source, and the outlet of the high-pressure nozzle faces the inner wall of the pipeline. The front traveling mechanism, the telescopic mechanism and the rear traveling mechanism which are connected successively before and after realize the self-propelling in the pipeline, all of which can adopt the existing technology, such as Chinese patent CN201110318141.4, which discloses a bionic peristaltic pipeline walking mechanism. The radial support unit is the front running mechanism of the present embodiment, the rear body segment radial support unit is the rear travel mechanism of the present embodiment, and the axial support unit arranged in the middle of the front body segment radial support unit and the rear body segment radial support unit. The feed unit is the telescoping mechanism of this embodiment; by coordinating the periodic intermittent radial expansion and contraction movement between the front and rear radial support units and the inner wall of the pipeline and the periodic intermittent axial movement of the intermediate axial feed unit Telescopic movement, imitating the movement gait and regularity of worm body segments to wriggle and walk in the pipeline. Certainly also can adopt other running mechanism in the prior art to realize. The telescoping mechanism is the prior art, such as a motor screw mechanism, a linear cylinder, a linear oil cylinder and the like. The departing end of the front running gear and the rear running gear refers to the front end of the front running gear and the rear end of the rear running gear. The installation of high-pressure nozzles in the cleaning mechanism means that the high-pressure nozzles can be directly fixed on the diverging ends of the front traveling mechanism and the rear traveling mechanism, or can be fixed on the diverging ends of the front traveling mechanism and the rear traveling mechanism through other fixing devices, such as clamps, etc. . The high-pressure nozzle refers to the pressure energy of the high-pressure water gathered by the shrinkage of the cross-section of the inner hole of the nozzle, and converted into kinetic energy, and finally sprayed out in the form of a high-pressure water jet to clean the inner wall of the pipe. Usually, the water pressure of the high-pressure nozzle can Reaching above 25Mpa, the high-pressure nozzle adopts any one of the prior art such as circular nozzles and fan-shaped nozzles. The high-pressure nozzle communicates with external water sources such as cleaning vehicles and pools through water pipes. Those skilled in the art should understand that the external water source should have devices such as water pumps to deliver water to the high-pressure nozzles. The pipeline structures and principles between external water sources are all prior art, so no detailed description will be given here.

Preferably, the cleaning mechanism includes a first motor fixedly connected to the front end of the front traveling mechanism or the rear end of the rear traveling mechanism, a disc fixedly connected to the output shaft of the first motor, and a high-pressure nozzle detachably connected to the outer surface of the disc; The disc is provided with a water channel with one end in communication with the high-pressure nozzle and the other end in communication with the external water source. If the high-pressure nozzle is directly fixed on the running mechanism, there must be a dead angle when cleaning the inner wall of the pipeline. Therefore, the first motor is set to drive the disc to rotate, thereby driving the rotary joint to rotate, so that high-pressure water can clean every corner of the inner wall of the pipeline.

Preferably, a rotary joint is detachably connected to the end surface of the disc away from the first motor, one end of the rotary joint communicates with the water channel in the disc, and the other end of the rotary joint communicates with the external water source. The swivel joint is a connection sealing device that inputs water from a stationary pipe to a rotating or reciprocating disc. The structure of the rotary joint is prior art, so it will not be described in detail here.

Preferably, there are a plurality of high-pressure nozzles uniformly distributed on the outer surface of the disk, and the high-pressure nozzles are all connected to the external water source through the water channel in the disk.

Preferably, the telescopic mechanism includes a second motor fixedly connected to the rear traveling mechanism, a swing rod fixedly connected to the output shaft of the second motor, a guide rod slidingly fitted with the front end of the rear traveling mechanism and fixedly connected to the rear end of the front traveling mechanism , The connecting seat fixedly connected to the rear end of the front walking mechanism; the connecting seat has a waist hole, and a roller is matched in the waist hole; one end of the swing rod is hinged with the roller in the waist hole of the connecting seat, and the other end of the swing rod is connected to the second motor output The shaft is fixedly connected. It should be noted that the long axis of the waist hole is perpendicular to the telescopic direction of the telescopic mechanism. The traditional telescopic mechanism adopts the motor screw mechanism, that is, the motor drives the screw to rotate, so that the nut on the screw does a linear motion. Since the telescopic mechanism needs to reciprocate, the motor screw mechanism needs to control the forward and reverse rotation of the motor to realize the control. The structure is complex, so the second motor and the swing rod are set to realize the reciprocating motion of the telescopic mechanism without the need for forward and reverse rotation of the motor. It should be noted that those skilled in the art should understand that during the movement of the telescopic mechanism, The end has an escape hole for avoiding the motor. It is worth noting that the telescopic mechanism in this embodiment can also be rotated by 180 degrees, that is, the second motor is fixedly connected to the front traveling mechanism, and the connecting seat is fixedly connected to the rear traveling mechanism.

Preferably, the front end of the front traveling mechanism or the rear traveling mechanism includes a cylinder body, a fixed arm assembly, and a traveling roller assembly; The retractable fixed arm on the inner wall of the pipeline; the walking roller assembly includes a plurality of walking arms connected to the cylinder and uniformly distributed radially along the outer circular surface of the cylinder, and the end of the walking arm in contact with the inner wall of the pipeline is fixedly connected with a universal ball. The fixed arm assembly is prior art, for example, Chinese patent CN200910071240.X discloses a pipeline exploration robot based on push-pull electromagnets, including two parallelogram mechanisms and three push-pull electromagnets; each push-pull electromagnet consists of The coil base is composed of coils and pull rods installed on the coil base; each parallelogram mechanism is hinged by four connecting rods, and friction blocks are installed on the two hinge points of a diagonal line in each parallelogram mechanism , the two hinge points of the other diagonal are respectively connected with the pull rod of the push-pull electromagnet and the coil base; Power off realizes the opening or retracting of the parallelogram mechanism, thereby realizing the expansion friction and loosening of the inner wall of the pipeline by using the parallelogram mechanism. Of course, other fixed arm assembly structures in the prior art can also be used to realize the expansion, friction and loosening of the inner wall of the pipeline. The walking arm can be fixedly connected to the cylindrical body, or can be telescopically connected to the outer circular surface of the cylindrical cylinder along the radial direction of the outer circular surface of the cylinder. In the prior art, a cylindrical roller is rotatably connected to the walking arm to realize rolling forward, but due to processing and other problems, there is a problem that the rolling direction of the cylindrical roller is skewed from the telescopic direction of the telescopic mechanism, resulting in sliding friction between the cylindrical roller and the inner wall of the pipeline. Increase the forward resistance, on the other hand, it is easy to cause damage to the inner wall of the pipeline. Therefore, the universal ball is set, and since the ball is used as the roller, the rolling direction of the roller can always be consistent with the telescopic direction of the telescopic mechanism, reducing the forward resistance of the device and protecting the inner wall of the pipeline.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

(1) The utility model achieves the effect of high-pressure water jet stripping and cleaning the dirt on the inner surface of the pipeline by setting the walking mechanism and high-pressure nozzle;

(2) The utility model realizes the effect of cleaning the inner wall of the pipeline without dead angle by setting the first motor to drive the rotary joint on the disc to rotate and clean the inner surface of the pipeline;

(3) The utility model achieves the effect of preventing the water pipe from being entangled due to the rotation of the first motor by setting the rotary joint;

(4) The utility model repeatedly cleans the inner wall of the pipeline for many times by setting a plurality of rotating joints evenly distributed on the outer surface of the disc, so as to achieve the effect of higher cleaning efficiency;

(5) The utility model drives the swing rod to rotate by setting the second motor, so that the front traveling mechanism or the rear traveling mechanism moves back and forth, so as to avoid the effect of the traditional motor screw moving mechanism requiring frequent forward and reverse motors;

(6) The utility model achieves the effect of preventing the tangential direction of the traditional cylindrical roller from being inconsistent with the walking mechanism by setting the universal ball, which will cause the increase of the walking resistance.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is a sectional view of Fig. 1 A-A;

Fig. 3 is a schematic diagram of cleaning structure;

Fig. 4 is a structural schematic diagram of the telescoping mechanism;

Among them, 1-front traveling mechanism; 2-telescopic mechanism; 3-rear traveling mechanism; 4-cleaning mechanism; 5-universal ball; 6-pipeline; 21-second motor; - guide rod; 25 - roller; 41 - high pressure nozzle; 42 - disc; 43 - rotary joint; 44 - first motor.

Detailed ways

The utility model will be described in further detail below in conjunction with preferred embodiments of the utility model, but the implementation of the utility model is not limited thereto.

Example 1:

As shown in accompanying drawings 1-4, a pipe inner wall cleaning device includes a front traveling mechanism 1, a telescoping mechanism 2, and a rear traveling mechanism 3 connected sequentially from front to back; the front traveling mechanism 1 and the rear traveling mechanism have the same structure and are relatively Telescoping mechanism 2 is set in mirror image; front traveling mechanism 1 and rear traveling mechanism 3 are all provided with cleaning mechanism 4; In this embodiment, the front traveling mechanism 1 and the rear traveling mechanism 3 both include a cylinder body, a fixed arm assembly, and a walking roller assembly; and the retractable fixed arm that loosens the inner wall of the pipeline; the walking roller assembly includes a plurality of walking arms that are connected to the cylinder and are evenly distributed radially along the outer circular surface of the cylinder, and the end of the walking arm that contacts the inner wall of the pipeline is rotatably connected with a roller , the telescopic mechanism 2 adopts a linear oil cylinder, that is, the cylinder body of the oil cylinder is fixedly connected with the rear traveling mechanism 3, and the piston rod of the oil cylinder is fixedly connected with the front traveling mechanism 1; A water pump is communicated between the high-pressure nozzle 41 and the external water source at the diverging ends of the front traveling mechanism 1 and the rear traveling mechanism 3 .

working principle:

When using the device, put the device into the inner wall of the pipeline 6, start the device, the fixed arm of the rear traveling mechanism 3 stretches out to expand the inner wall of the pipeline 6, the fixed arm of the front traveling mechanism 1 retracts, and then the piston rod of the oil cylinder stretches out to push The front traveling mechanism 1 moves forward, then the fixed arm of the rear traveling mechanism 3 retracts, the fixed arm of the front traveling mechanism 1 stretches out the inner wall of the expansion pipeline 6, and then the piston rod of the oil cylinder is retracted to drive the rear traveling mechanism 3 to move forward, so Reciprocating realizes the self-propelling of the device in the pipeline 6 . When the device is running in the pipeline 6 , the external water source passes through the high-pressure nozzle 41 to form a high-pressure water jet that impacts the inner wall of the pipeline 6 to clean the inner wall of the pipeline 6 . It is worth noting that the specific structure and working principle of the oil cylinder are all prior art in this field, and will not be described in detail here.

Example 2:

In order to better implement the utility model and realize cleaning the inner wall of the pipeline without dead ends, on the basis of Embodiment 1, in combination with accompanying drawings 1-4, further, the cleaning mechanism 4 includes a The first motor 44 at the rear end of the traveling mechanism 3, the disc 42 fixedly connected to the output shaft of the first motor 44, the high-pressure nozzle 41 detachably connected to the outer surface of the disc 42; the disc 42 is provided with one end and the high-pressure nozzle 41 A waterway that is connected and the other end is connected to an external water source.

Example 3:

In order to better implement the utility model and prevent the water pipe from being entangled due to the rotation of the motor, on the basis of Embodiment 2, in combination with Figures 1-4, further, the end face of the disc 42 away from the first motor 44 is detachably connected There is a rotary joint 43, one end of the rotary joint 43 communicates with the water channel in the disk 42, and the other end of the rotary joint 43 communicates with the external water source. In this embodiment, the model of the rotary joint 43 is GP-621.

Example 4:

In order to better implement the utility model and improve the cleaning efficiency, on the basis of Embodiment 2 or 3, in combination with accompanying drawings 1-4, further, the high-pressure nozzles 41 are multiple and evenly distributed on the outer surface of the disk 42 The circular surface and the high-pressure nozzle 41 are all communicated with the external water source through the water channel in the disc 42 .

Example 5:

In order to better implement the utility model and avoid frequent transmission of forward and reverse motors, on the basis of embodiment 1 or 2, in combination with accompanying drawings 1-4, further, the telescopic mechanism 2 includes a fixed connection with the rear traveling mechanism 3 The second motor 21 of the second motor, the fork 22 fixedly connected with the output shaft of the second motor 21, the guide rod 24 that is slidably matched with the front end of the rear traveling mechanism 3 and is fixedly connected with the rear end of the front traveling mechanism 1, is fixedly connected with the front traveling mechanism 1 The connecting seat 23 at the rear end; the connecting seat 23 has a waist hole, and a roller 25 is matched in the waist hole; one end of the swing rod 22 is hinged with the roller 25 in the waist hole of the connecting seat 23, and the other end of the swing rod 22 is connected to the second motor 21 The output shaft is fixedly connected.

working principle:

The following walking mechanism is a fixed reference object, and the second motor 21 drives the fork 22 to rotate 180 degrees, and the fork 22 drives the connecting seat 23 and the front traveling mechanism 1 fixedly connected with the connecting seat 23 through the roller 25 to move backward for a stroke. Two motors 21 drive the fork 22 to continue to rotate 180 degrees, and the fork 22 drives the connecting seat 23 and the front traveling mechanism 1 fixedly connected with the connecting seat 23 through the roller 25 to get back to the original position, thereby telescopically moving.

Embodiment 6:

In order to better implement the utility model and prevent the tangential direction of the traditional cylindrical roller from being inconsistent with the running mechanism, which may cause increased walking resistance, on the basis of Embodiment 1 or 2, in combination with accompanying drawings 1-4, further, the preceding The front end of the traveling mechanism 1 or the rear traveling mechanism 3 includes a cylinder body, a fixed arm assembly, and a walking roller assembly; the fixed arm assembly has a plurality of radial and uniform distribution along the outer circular surface of the cylinder for expanding and loosening the inner wall of the pipeline 6 The retractable fixed arm; the walking roller assembly includes a plurality of walking arms connected to the cylinder and uniformly distributed radially along the outer surface of the cylinder, and one end of the walking arm in contact with the inner wall of the pipeline 6 is fixedly connected with a universal ball 5 . The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification or equivalent change made to the above embodiments according to the technical essence of the utility model falls within the scope of the present utility model. Within the protection scope of the present utility model.

Claims (6)

1. a kind of cleaning device for inner wall of pipeline, including from front and back sequentially connected pre-walking mechanism（1）, telescoping mechanism（2）, rear row Walk mechanism（3）；It is characterized in that, the pre-walking mechanism（1）And relative telescopic mechanism identical with rear walking mechanism structure（2）Mirror As setting；Pre-walking mechanism（1）And rear walking mechanism（3）Away from end be both provided with wiper mechanism（4）；Wiper mechanism（4）If It is equipped with the high pressure nozzle being connected to external source（41）, high pressure nozzle（41）Outlet towards pipeline（6）Inner wall.

2. a kind of cleaning device for inner wall of pipeline according to claim 1, which is characterized in that the wiper mechanism（4）Including It is fixedly connected on pre-walking mechanism（1）Front end or rear walking mechanism（3）The first motor of rear end（44）With first motor（44）It is defeated The disk that shaft is fixedly connected（42）, be removably connected to disk（42）The high pressure nozzle of periphery（41）；Disk（42）Inside set There are one end and high pressure nozzle（41）The water channel that connection and the other end are connected to external source.

3. a kind of cleaning device for inner wall of pipeline according to claim 2, which is characterized in that the disk（42）Far from first Motor（44）End face be removably connected with rotary joint（43）, rotary joint（43）One end and disk（42）Interior water channel connects It is logical, rotary joint（43）The other end be connected to external source.

4. a kind of cleaning device for inner wall of pipeline according to claim 2 or 3, which is characterized in that the high pressure nozzle（41） It is multiple and be evenly distributed on disk（42）Periphery, high pressure nozzle（41）Pass through disk（42）Interior water channel and outside water Source is connected.

5. a kind of cleaning device for inner wall of pipeline according to claim 1 or 2, which is characterized in that the telescoping mechanism（2）Packet It includes and rear walking mechanism（3）The second motor being fixedly connected（21）And the second motor（21）The swing rod that output shaft is fixedly connected （22）With rear walking mechanism（3）Front end is slidably matched and and pre-walking mechanism（1）The guide rod that rear end is fixedly connected（24）, it is solid Surely it is connected to pre-walking mechanism（1）The connecting seat of rear end（23）；Connecting seat（23）With waist hole, roller is matched in waist hole （25）；Swing rod（22）One end and connecting seat（23）Roller in waist hole（25）It is hinged, swing rod（22）The other end and the second motor （21）Output shaft is fixedly connected.

6. a kind of cleaning device for inner wall of pipeline according to claim 1 or 2, which is characterized in that the pre-walking mechanism（1） Front end or rear walking mechanism（3）Including cylinder, fixed arm component, walking roller component；Fixed arm component has multiple along circle The radially uniform distribution of cylinder periphery is used for swelling and release pipeline（6）The telescopic fixed arm of inner wall；Walking roller group Part includes multiple connect with cylinder and along the walking arm of the radially uniform distribution of cylinder periphery；Walking arm and pipeline（6）It is interior One end of wall contact is fixedly connected with multi-directional ball（5）.