Anti-corrosion construction device for inner wall of pipeline

Abstract

The utility model discloses a pipeline inner wall anti-corrosion construction device, which relates to the technical field of pipeline anti-corrosion treatment, and comprises a base and a spraying assembly, the spraying assembly comprises a support platform, a center rod, a reciprocating driving mechanism and three groups of nozzle assemblies arranged in a circumferential array, the support platform is fixed on the other side of the base, and the center rod is fixed on the center rod. A horizontal guide rail is arranged on the supporting platform; the center rod is installed on the guide rail in a sliding mode and is coaxial with the chuck. The nozzle assembly comprises a first connecting rod, a second connecting rod and a sliding block which are sequentially hinged, the front end of the first connecting rod is hinged to the front end of the center rod, and an axial contact block is hinged to the hinged position of the rear end of the first connecting rod and the front end of the second connecting rod. Two universal balls which are axially arranged are arranged on the outer side of the contact block, and a spray head is further mounted on the contact block; when pipelines with different inner diameters are sprayed, the universal ball in the spray head assembly can be in contact with the inner walls of the pipelines all the time, so that the distances between the spray heads and the inner walls of the pipelines are the same, and the same spraying effect can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline anti-corrosion treatment, in particular to a pipeline inner wall anti-corrosion construction device. Background Art

[0002] Metal pipes are widely used in various fields. During use, the inner wall of metal pipes will inevitably have corrosion problems, which will affect the service life of metal pipes. Therefore, the protection of the inner wall of the pipe is particularly important. In order to protect the inner wall of the metal pipe, it is usually coated with anti-corrosion or non-stick coatings on the inner wall. The coating of anti-corrosion or non-stick coatings is achieved by spraying devices.

[0003] The existing spraying device has a complex structure. When spraying pipes with different inner diameters, the distance between the spray head and the inner wall of the pipe is different, so the same spraying effect cannot be guaranteed.

[0004] In summary, it is urgent to develop a new type of pipeline inner wall anti-corrosion spraying device. Utility Model Content

[0005] The purpose of the utility model is to provide a pipeline inner wall anti-corrosion construction device to address the defects of the prior art.

[0006] The technical solution of the utility model is: a pipeline inner wall anti-corrosion construction device, including a base and a spraying assembly, a vertical support plate is provided on one side of the base, a chuck is installed on the support plate, the spraying assembly includes a support platform, a center rod, a reciprocating drive mechanism and a plurality of groups of nozzle assemblies arranged in a circular array, the support platform is fixed on the other side of the base, and a horizontal guide rail is provided on the support platform; the center rod is slidably installed on the guide rail, is coaxially arranged with the chuck, and is transmission-connected with the reciprocating drive mechanism;

[0007] The nozzle assembly includes a first connecting rod, a second connecting rod and a sliding block which are hinged in sequence. The front end of the first connecting rod is hinged to the front end of the center rod, and an axial contact block is hinged at the hinge between the rear end and the front end of the second connecting rod. An axial guide groove is provided on the center rod, and the sliding block is slidably installed in the guide groove, and the front end of the sliding block is connected to the front end of the guide groove by a tension spring. A plurality of axially arranged universal balls are provided on the outer side of the contact block, and a nozzle is also installed on the contact block. The head end of the nozzle is closer to the center rod than the universal ball.

[0008] Preferably, the reciprocating drive mechanism includes a first motor, a rack and a driving gear, the first motor is fixed on the supporting platform, the rack is meshingly connected with the driving gear, the rack is fixed on one side of the center rod, and the driving gear is fixed on the output shaft of the first motor.

[0009] Preferably, the base is further provided with a support assembly, which includes a synchronization mechanism and a plurality of support wheel groups, and the plurality of support wheel groups are installed on the base in a front-to-rear manner and are arranged in a colinear manner with the chuck; the support wheel group includes a lead screw and two wheel seats, and the base is provided with a slide groove which is arranged perpendicularly to the center rod, and the left and right sections of the lead screw have opposite thread directions, and are mounted in the slide groove and arranged parallel to the slide groove; the two wheel seats are respectively connected to the left and right sections of the lead screw, and are both slidably installed in the slide groove; the two wheel seats are provided with support wheels, and the two support wheels are arranged side by side left and right;

[0010] The lead screws of the plurality of supporting wheel sets are connected via a synchronization mechanism.

[0011] Preferably, the synchronization mechanism includes a connecting shaft and a second motor, the connecting shaft is horizontally mounted on the front side of the base, and is connected to multiple screws through a bevel gear set; the second motor is fixed on the base, and its output shaft is drivingly connected to the connecting shaft.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The device has a simple structure. When spraying pipes with different inner diameters, the universal ball in the nozzle assembly can always be in contact with the inner wall of the pipe, so that the distance between the nozzle and the inner wall of the pipe is the same, which can ensure the same spraying effect; the support assembly can cooperate with the chuck to clamp and support pipes of different diameters, thereby facilitating the stable spraying operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] In the figure: 1, base, 101, slide groove, 2, support plate, 3, chuck, 4, support platform, 5, guide rail, 6, center rod, 601, guide groove, 7, first motor, 8, driving gear, 9, first connecting rod, 10, second connecting rod, 11, slider, 12, contact block, 13, universal ball, 14, nozzle, 15, screw, 16, wheel seat, 17, support wheel, 18, second motor, 19, connecting shaft, 20, bevel gear set. DETAILED DESCRIPTION

[0016] The utility model is further described below with reference to the accompanying drawings and embodiments. Embodiment 1

[0017] Reference Figure 1As shown, a pipeline inner wall anti-corrosion construction device includes a base 1 and a spraying assembly. A vertical support plate 2 is provided on one side of the base 1, and a chuck 3 is installed on the support plate 2. The spraying assembly includes a support platform 4, a center rod 6, a reciprocating drive mechanism and three groups of nozzle assemblies arranged in a circular array. The support platform 4 is fixed on the other side of the base 1, and a horizontal guide rail 5 is provided on the support platform 4; the center rod 6 is slidably installed on the guide rail 5, which is coaxially arranged with the chuck 3 and is transmission-connected to the reciprocating drive mechanism.

[0018] The reciprocating drive mechanism includes a first motor 7, a rack and a driving gear 8. The first motor 7 is fixed on the supporting platform 4. The rack is meshed with the driving gear 8. The rack is fixed on one side of the center rod 6. The driving gear 8 is fixed on the output shaft of the first motor 7.

[0019] The nozzle assembly includes a first connecting rod 9, a second connecting rod 10 and a sliding block 11 which are hinged in sequence. The front end of the first connecting rod 9 is hinged to the front end of the center rod 6, and an axial contact block 12 is hinged at the hinge between its rear end and the front end of the second connecting rod 10; an axial guide groove 601 is provided on the center rod 6, and the sliding block 11 is slidably installed in the guide groove 601, and its front end is connected to the front end of the guide groove 601 through a tension spring; two axially arranged universal balls 13 are provided on the outside of the contact block 12, and a nozzle 14 is also installed on the contact block 12; the head end of the nozzle 14 is closer to the center rod 6 than the universal ball 13, so as to prevent the head end of the nozzle 14 from touching the inner wall of the pipe.

[0020] When in use, the front end of the pipe is clamped by the chuck 3; the first motor 7 is started to drive the center rod 6 to move forward, so that the three groups of nozzle assemblies are inserted into the pipe and continue to move forward until the three groups of nozzle assemblies move to the front end of the inner wall of the pipe; in this process, under the action of the tension spring, the universal ball 13 in each group of nozzle assemblies contacts the inner wall of the pipe. Then, the chuck 3 drives the pipe to rotate, and the first motor 7 reverses to drive the center rod 6 to move backward at a uniform speed. At the same time, the nozzle 14 sprays the anti-corrosion paint on the inner wall of the pipe until the entire pipe is sprayed.

[0021] The device has a simple structure. When spraying pipes with different inner diameters, the universal ball 13 in the spray head assembly can always contact the inner wall of the pipe, so that the distance between the spray head 14 and the inner wall of the pipe is the same, which can ensure the same spraying effect. Embodiment 2

[0022] As a preferred embodiment of the present utility model, this embodiment adds a support assembly on the basis of the first embodiment, specifically:

[0023] In this embodiment, a support assembly is also provided on the base 1, and the support assembly includes a synchronization mechanism and two supporting wheel groups. The two supporting wheel groups are installed on the base 1 side by side front and back, and are arranged in line with the chuck 3; the supporting wheel group includes a screw 15 and two wheel seats 16, and a slide groove 101 which is perpendicular to the center rod 6 is opened on the base 1. The left and right sections of the screw 15 have opposite thread directions, and it is mounted in the slide groove 101 and is arranged parallel to the slide groove 101; the two wheel seats 16 are respectively connected to the left and right sections of the screw 15, and are both slidably installed in the slide groove 101; the two wheel seats 16 are provided with support wheels 17, and the two support wheels 17 are arranged side by side left and right.

[0024] The two supporting wheel sets' lead screws 15 are connected through a synchronization mechanism, which includes a connecting seat 19 and a second motor 18. The connecting seat 19 is horizontally mounted on the front side of the base 1, and is connected to the two lead screws 15 through a bevel gear set 20; the second motor 18 is fixed on the base 1, and its output shaft is transmission-connected to the connecting seat 19.

[0025] When in use, the second motor 18 is started to drive the connecting seat 19 to rotate, and the connecting seat 19 then drives the two supporting wheel sets' lead screws 15 to rotate synchronously through the transmission of the bevel gear set 20; driven by the lead screw 15, the two supporting wheels 17 move relative to or back to back, so that pipes of different diameters can be supported, thereby facilitating the stable progress of the spraying operation.

[0026] The present invention is not limited to the above-mentioned implementation modes. Within the knowledge scope of those skilled in the art, various changes can be made without departing from the purpose of the present invention. The changed contents still belong to the protection scope of the present invention.

Claims

1. A pipeline inner wall anti-corrosion construction device, comprising a base and a spraying assembly, a vertical support plate is provided on one side of the base, a chuck is installed on the support plate, and the characteristics are: The spraying assembly includes a support platform, a center rod, a reciprocating drive mechanism and a plurality of nozzle assemblies arranged in a circular array. The support platform is fixed to the other side of the base, and a horizontal guide rail is provided on the support platform; the center rod is slidably mounted on the guide rail, is coaxially arranged with the chuck, and is transmission-connected with the reciprocating drive mechanism; The nozzle assembly includes a first connecting rod, a second connecting rod and a sliding block which are hinged in sequence. The front end of the first connecting rod is hinged to the front end of the center rod, and an axial contact block is hinged at the hinge between the rear end and the front end of the second connecting rod. An axial guide groove is provided on the center rod, and the sliding block is slidably installed in the guide groove, and the front end of the sliding block is connected to the front end of the guide groove by a tension spring. A plurality of axially arranged universal balls are provided on the outer side of the contact block, and a nozzle is also installed on the contact block. The head end of the nozzle is closer to the center rod than the universal ball.

2. A pipeline inner wall anti-corrosion construction device according to claim 1, characterized in that: The reciprocating drive mechanism includes a first motor, a rack and a driving gear. The first motor is fixed on the supporting platform. The rack is meshed with the driving gear. The rack is fixed on one side of the center rod. The driving gear is fixed on the output shaft of the first motor.

3. A pipeline inner wall anti-corrosion construction device according to claim 2, characterized in that: The base is also provided with a support assembly, which includes a synchronization mechanism and a plurality of support wheel groups, and the plurality of support wheel groups are installed on the base in a front-to-back manner and are arranged in a colinear manner with the chuck; the support wheel group includes a lead screw and two wheel seats, and a slide groove vertically arranged with the center rod is provided on the base, and the left and right sections of the lead screw have opposite thread directions, and are mounted in the slide groove and arranged in parallel with the slide groove; the two wheel seats are respectively connected with the left and right sections of the lead screw, and are both slidably installed in the slide groove; the two wheel seats are provided with support wheels, and the two support wheels are arranged side by side left and right; The lead screws of the plurality of supporting wheel sets are connected via a synchronization mechanism.

4. A pipeline inner wall anti-corrosion construction device according to claim 3, characterized in that: The synchronization mechanism includes a connecting shaft and a second motor. The connecting shaft is horizontally mounted on the front side of the base and is connected to multiple lead screws through a bevel gear set. The second motor is fixed on the base, and its output shaft is drivingly connected to the connecting shaft.

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