Pipeline internal sand blasting device capable of self-adapting to pipe diameter

Abstract

The utility model relates to the technical field of pipeline sand blasting, in particular to a pipe-diameter-self-adaptive in-pipeline sand blasting device which is characterized in that a fixed disc is fixed on a conveying pipe in a sleeving manner; the telescopic screw rods are annularly distributed and are screwed on the fixed disc through bearings; the inner end of the telescopic screw rod is connected with a bevel gear pair; the belt pulleys are respectively connected with bevel gear pairs; the belt pulleys are in transmission connection through a belt; the fixing frame is connected with the belt pulley through a shaft and a bearing, the fixing frame is of an L-shaped structure, and the fixing frame is fixed to the fixing disc. The driving mechanism is arranged on the upper fixing frame; the telescopic internal thread pipes are screwed and sleeved on the telescopic screw rods through threads respectively; the outer end of the telescopic internal thread pipe is screwed with a walking wheel; the rotating mechanism is arranged on the fixed disc and the connecting pipe; the limiting mechanism is connected with the sand blasting pipe and the telescopic internal thread pipe; the walking wheels synchronously abut against the inner diameter of the pipeline, so that the sand blasting device is matched with the inner diameter of the pipeline, and repeated adjustment is not needed; and the manual screwing driving belt pulley is rotated, operation is easy, time and labor are saved, and practicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline sand blasting technical field, concretely relates to pipeline internal sand blasting device of self -adaptation pipe diameter. BACKGROUND

[0002] The pipeline will have many rusts after long time of use, generally will use the sand blasting machine to carry out the treatment, and the sand blasting device needs to be matched with the inner diameter of the pipeline, so it is necessary to continuously adjust the support of the pulley, and it is time -consuming and labor -intensive to adjust the support of the pulley one by one, and it is not easy to keep consistent length, for this, the pipeline internal sand blasting device of self -adaptation pipe diameter is proposed. UTILITY MODEL CONTENTS

[0003] The utility model discloses a pipeline internal sand blasting device of self -adaptation pipe diameter, and walking wheel synchronous setting is in the inner diameter of the pipeline, so that the sand blasting device is matched with the inner diameter of the pipeline, and repeated adjustment is not needed, by rotating hand twist drive pulley, simple operation, time -saving and labor -saving, improve practicality.

[0004] In order to achieve the above object, the utility model adopts the following technical scheme: it contains conveying pipe, connecting pipe and sand blasting pipe, the right end of conveying pipe is connected with connecting pipe through bearing, and a plurality of sand blasting pipes are arranged on the connecting pipe in annular distribution, and the left end of conveying pipe is connected with sand blasting machine,

[0005] It also contains:

[0006] Fixed disc, the fixed disc sleeve is fixed on the conveying pipe,

[0007] Telescopic screw rod, the number of telescopic screw rod is a plurality, and is annular distribution through bearing and is connected on the fixed disc respectively, and the inner end of telescopic screw rod is connected with bevel gear pair,

[0008] Pulley, the number of pulley is a plurality, and is connected with bevel gear pair respectively, and the pulley is connected through the belt drive between the pulley,

[0009] Fixed frame, the number of fixed frame is a plurality, and is connected with pulley through shaft and bearing respectively, and the fixed frame is " L " shape structure, and the fixed frame is fixed on the fixed disc,

[0010] Driving mechanism, the driving mechanism is arranged on the upper fixed frame,

[0011] Telescopic internal screw pipe, the number of telescopic internal screw pipe is a plurality, and is sleeve -set on telescopic screw rod through thread respectively, and the outer end of telescopic internal screw pipe is connected with walking wheel,

[0012] Rotating mechanism, the rotating mechanism is arranged on the fixed disc and connecting pipe,

[0013] The limiting mechanism is connected with the sand blasting pipe and the telescopic inner threaded pipe.

[0014] Preferably, the driving mechanism comprises:

[0015] The driving gear is rotatably connected to the upper fixing frame through a bearing, and the driving gear is rotatably connected to the corresponding belt pulley through a shaft and a bearing after penetrating through the fixing frame.

[0016] The driving inner threaded pipe is fixed to the front side wall of the rack, and the bottom of the driving inner threaded pipe is rotatably connected to the driving screw through a thread.

[0017] The mounting plate is fixed to the bottom of the left side wall of the fixing frame, and the driving screw is rotatably connected to the mounting plate through a bearing.

[0018] Preferably, the bottom of the driving screw is fixed with a hand screw, and a plurality of anti-skid grooves are arranged in the annular wall of the hand screw.

[0019] Preferably, the annular wall of the telescopic inner threaded pipe is fixed with a scraper through a connecting plate, and the scraper is arranged on the walking wheel.

[0020] Preferably, the rotating mechanism comprises a rotating motor, a connecting gear and a gear ring, the rotating motor is fixed to the fixing disc, the rotating motor is connected with an external power source, the output shaft of the rotating motor is connected with the connecting gear through a shaft, the connecting pipe is sleeved with the gear ring, and the connecting gear is arranged in meshing connection with the gear ring.

[0021] Preferably, the limiting mechanism comprises a sliding rail, a sliding block, a limiting pipe and a limiting rod, the sliding rail is in an annular structure, the sliding rail is sleeved and fixed to the connecting pipe, the number of the sliding blocks is several, and the sliding blocks are slidably arranged on the sliding rail, the number of the limiting pipes is several, and the limiting pipes are fixed to the sliding blocks, the number of the limiting rods is several, and the limiting rods are movably inserted into the limiting pipes, the limiting rod is in an L-shaped structure, and the other end of the limiting rod is fixed to the annular wall of the telescopic inner threaded pipe.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] 1. The walking wheel is synchronously arranged on the inner diameter of the pipeline, so that the sand blasting device is matched with the inner diameter of the pipeline, and repeated adjustment is not needed.

[0024] 2. The belt pulley is driven by rotating the hand screw, the operation is simple, time and labor are saved, and the practicability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structural schematic view of the utility model.

[0026] Figure 2 is the southwest isometric view of the utility model.

[0027] Figure 3 is Figure 2 the enlarged view of A part in

[0028] Figure 4 is Figure 2 the enlarged view of B part in

[0029] Figure 5 is Figure 2 the enlarged view of C part in

[0030] Explanation of the drawings:

[0031] The conveying pipe 1, the connecting pipe 2, the sand blasting pipe 3, the fixed disc 4, the telescopic screw rod 5, the bevel gear pair 6, the belt pulley 7, the fixed frame 8, the driving mechanism 9, the driving gear 9-1, the rack 9-2, the driving internal thread pipe 9-3, the driving screw rod 9-4, the mounting plate 9-5, the hand screw 9-6, the telescopic internal thread pipe 10, the walking wheel 11, the scraper 12, the rotating mechanism 13, the rotating motor 13-1, the connecting gear 13-2, the gear ring 13-3, the limiting mechanism 14, the slide rail 14-1, the sliding block 14-2, the limiting pipe 14-3, the limiting rod 14-4. Specific implementation

[0032] The technical scheme in the utility model will be described clearly and completely in combination with the drawings, and the preferred embodiment in the description is only as an example, and all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0033] The specific implementation adopts the following technical scheme:

[0034] Please refer to Figures 1-5 , the embodiment 1 includes the conveying pipe 1, the connecting pipe 2 and the sand blasting pipe 3; the right end of the conveying pipe 1 is rotatably connected with the connecting pipe 2 through a bearing, and a plurality of sand blasting pipes 3 are annularly arranged on the connecting pipe 2; the left end of the conveying pipe 1 is connected with a sand blasting machine;

[0035] It also includes:

[0036] The fixed disc 4 is fixed on the conveying pipe 1 through a bolt sleeve;

[0037] The telescopic screw rod 5 is annularly arranged on the fixed disc 4 through a bearing, and the number of the telescopic screw rod 5 is several; the inner end of the telescopic screw rod 5 is connected with the bevel gear pair 6;

[0038] The belt pulley 7 is connected with the bevel gear pair 6, and the number of the belt pulley 7 is several; the belt pulleys 7 are connected through a belt transmission;

[0039] A plurality of fixed frames 8 are connected with the pulleys 7 through shafts and bearings, and the fixed frames 8 are in "L" shape structure and are fixed on the fixed disc 4;

[0040] A driving mechanism 9 is arranged on the upper fixed frame 8, and the driving mechanism 9 comprises:

[0041] A driving gear 9-1 is screwed on the upper fixed frame 8 through a bearing, and the driving gear 9-1 is connected with the corresponding pulley 7 through a shaft and a bearing after being screwed through the fixed frame 8; a rack 9-2 is arranged on the front side of the driving gear 9-1;

[0042] A driving internal threaded pipe 9-3 is fixed on the front side wall of the rack 9-2; a driving screw 9-4 is screwed and inserted at the bottom of the driving internal threaded pipe 9-3;

[0043] A mounting plate 9-5 is fixed on the bottom of the left side wall of the fixed frame 8, and the driving screw 9-4 is screwed and inserted in the mounting plate 9-5 through a bearing; a hand screw 9-6 is fixed at the bottom of the driving screw 9-4 through bolts, and a plurality of anti-skid grooves are arranged in a ring shape on the ring wall of the hand screw 9-6;

[0044] A plurality of telescopic internal threaded pipes 10 are screwed and sleeved on the telescopic screw 5; a traveling wheel 11 is screwed on the outer end of the telescopic internal threaded pipe 10; a scraper 12 is fixed on the left side of the outer end of the ring wall of the telescopic internal threaded pipe 10 through a connecting plate, and the scraper 12 abuts against the traveling wheel 11; when the traveling wheel 11 moves, the scraper 12 scrapes off the sand on the traveling wheel 11;

[0045] A rotating mechanism 13 is arranged on the fixed disc 4 and the connecting pipe 2; the rotating mechanism 13 comprises a rotating motor 13-1, a connecting gear 13-2 and a gear ring 13-3; the rotating motor 13-1 is fixed on the fixed disc 4 through bolts, and the rotating motor 13-1 is connected with an external power supply; the specific type of the rotating motor 13-1 is directly purchased, installed and used according to actual use requirements; the connecting gear 13-2 is connected with the output shaft of the rotating motor 13-1 through a shaft, the gear ring 13-3 is sleeved on the connecting pipe 2, and the connecting gear 13-2 is arranged in meshing relationship with the gear ring 13-3;

[0046] A limiting mechanism 14 is connected with the sand blasting pipe 3 and the telescopic inner threaded pipe 10; the limiting mechanism 14 comprises a slide rail 14-1, a slide block 14-2, a limiting pipe 14-3 and a limiting rod 14-4; the slide rail 14-1 is annular, and is sleeved and fixed on the connecting pipe 2; the slide block 14-2 is provided in plurality, and is slidably arranged on the slide rail 14-1; the limiting pipe 14-3 is provided in plurality, and is fixed on the slide block 14-2; the limiting rod 14-4 is provided in plurality, and is movably inserted into the limiting pipe 14-3, and the limiting rod 14-4 is in L-shaped structure, and the other end of the limiting rod 14-4 is fixed on the ring wall of the telescopic inner threaded pipe 10.

[0047] In use of the utility model, the sand blasting device is placed in the pipeline, according to the inner diameter of the pipeline, rotating hand screw 9-6 makes drive screw 9-4 rotate, drives drive inner threaded pipe 9-3 to move, makes drive gear 9-1 rotate, drives pulley 7 to rotate, under the action of bevel gear pair 6 and belt, makes telescopic screw 5 rotate, under the action of limiting rod 14-4 and limiting pipe 14-3, makes telescopic inner threaded pipe 10 move, synchronously abuts walking wheel 11 at the inner diameter of the pipeline, without repeatedly adjusting.

[0048] When sand blasting, starting rotating motor 13-1, makes connecting gear 13-2 rotate, drives gear ring 13-3 to rotate, makes connecting pipe 2 rotate, drives sand blasting pipe 3 to rotate and blast, slide rail 14-1 rotates in slide block 14-2, does not affect telescopic inner threaded pipe 10.

[0049] Compared with the prior art, the utility model has the advantages that:

[0050] 1, under the action of pulley 7, telescopic inner threaded pipe 10 moves synchronously, abuts walking wheel 11 at the inner diameter of the pipeline, makes sand blasting device fit the inner diameter of the pipeline, without repeatedly adjusting.

[0051] 2, drive pulley 7 through rotating hand screw 9-6, simple operation, save time and effort, improve practicality.

[0052] 3, be provided with scraper 12, when walking wheel 11 moves, scraper 12 removes the sand on walking wheel 11, avoids that sand influences the movement of walking wheel 11.

[0053] 4, be provided with limiting mechanism 14, makes the rotation of connecting pipe 2 and the movement of telescopic inner threaded pipe 10 not affect each other.

[0054] For those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, and equivalent replacement of part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An adaptive pipe diameter internal sandblasting device, comprising a conveying pipe (1), a connecting pipe (2) and a sandblasting pipe (3); the right end of the conveying pipe (1) is screwed to the connecting pipe (2) via a bearing, and several sandblasting pipes (3) are inserted in a ring on the connecting pipe (2); the left end of the conveying pipe (1) is connected to a sandblasting machine. Its features are, It also includes: Fixed plate (4), the fixed plate (4) is sleeved and fixed on the conveying pipe (1); The telescopic screw (5) consists of several screws, which are arranged in a ring and screwed onto the fixed plate (4) via bearings. The inner end of the telescopic screw (5) is connected to a bevel gear pair (6). There are several pulleys (7), and each pulley (7) is connected to a bevel gear pair (6); the pulleys (7) are connected to each other by belt drive. The number of fixed frames (8) is several, and they are connected to pulleys (7) by shafts and bearings respectively. The fixed frames (8) are in the shape of "L" and are fixed on the fixed plate (4). The drive mechanism (9) is mounted on the upper fixed frame (8); The telescopic internal threaded tube (10) is a plurality of such tubes, and each is threadedly fitted onto the telescopic screw rod (5); the outer end of the telescopic internal threaded tube (10) is screwed with a traveling wheel (11). Rotating mechanism (13), wherein the rotating mechanism (13) is disposed on the fixed disk (4) and the connecting pipe (2); The limiting mechanism (14) is connected to the sandblasting pipe (3) and the telescopic internal threaded pipe (10).

2. The pipe internal sandblasting device with adaptive pipe diameter according to claim 1, characterized in that: The drive mechanism (9) includes: The drive gear (9-1) is screwed onto the upper fixed frame (8) via a bearing. After the drive gear (9-1) passes through the fixed frame (8) via a shaft and a bearing, it is connected to the corresponding pulley (7) via a shaft. A rack (9-2) is meshed on the front side of the drive gear (9-1). A drive internal thread tube (9-3) is fixed on the front side wall of the rack (9-2); a drive screw (9-4) is inserted into the bottom of the drive internal thread tube (9-3) through a threaded connection. Mounting plate (9-5) is fixed to the bottom of the left side wall of the fixing frame (8), and the driving screw (9-4) is screwed through the mounting plate (9-5) by bearing.

3. The pipe internal sandblasting device with adaptive pipe diameter according to claim 2, characterized in that: The bottom of the drive screw (9-4) is fixed with a hand screw (9-6), and several anti-slip grooves are distributed in a ring on the ring wall of the hand screw (9-6).

4. The pipe internal sandblasting device with adaptive pipe diameter according to claim 1, characterized in that: A scraper (12) is fixed to the left side of the outer end of the annular wall of the telescopic internal threaded tube (10) via a connecting plate, and the scraper (12) rests against the traveling wheel (11).

5. The pipe internal sandblasting device with adaptive pipe diameter according to claim 1, characterized in that: The rotating mechanism (13) includes: a rotating motor (13-1), a connecting gear (13-2), and a gear ring (13-3); the rotating motor (13-1) is fixed on the fixed disk (4) and connected to an external power source; the output shaft of the rotating motor (13-1) is connected to the connecting gear (13-2) via a shaft, and the connecting pipe (2) is fitted with a gear ring (13-3), and the connecting gear (13-2) and the gear ring (13-3) are meshed.

6. The pipe internal sandblasting device with adaptive pipe diameter according to claim 1, characterized in that: The limiting mechanism (14) includes: a slide rail (14-1), a slider (14-2), a limiting tube (14-3), and a limiting rod (14-4); the slide rail (14-1) is a ring structure and is sleeved and fixed on the connecting tube (2); there are several sliders (14-2), which are slidably disposed on the slide rail (14-1); there are several limiting tubes (14-3), which are fixed on the sliders (14-2); there are several limiting rods (14-4), which are movably inserted into the limiting tubes (14-3), and the limiting rods (14-4) are in the shape of an "L" shape, with the other end of the limiting rods (14-4) fixed on the annular wall of the telescopic internal thread tube (10).

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