Sprayer for trenchless pipeline repair

Abstract

The utility model relates to the technical field of pipeline repair, in particular to a sprayer for trenchless pipeline repair, which comprises two symmetrical upright posts, a spraying mechanism is mounted between the bottom ends of the two connecting frames, the spraying mechanism comprises a mounting plate, a second motor is mounted at the top of the mounting plate, and a fixing frame is further fixed to the top of the mounting plate; two clamping plates are fixed to the outer walls of the two sides of the fixing frame, and the bottom end of the connecting frame is inserted between the two clamping plates. An output shaft of the second motor penetrates through the mounting plate and is in coaxial key connection with a transmission shaft; the outer wall of the transmission shaft is in coaxial key connection with an auger; when a vertical pipeline is repaired, the two stand columns are erected at a pipeline wellhead, a first motor drives a threaded rod to rotate, a movable plate and a connecting frame can be driven to move downwards along with rotation of the threaded rod, the connecting frame is fixedly connected with a spraying mechanism, and then the spraying mechanism can be driven to stably move downwards; and at the moment, the spraying mechanism can uniformly spray the inner wall of the pipeline.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline repair technical field, concretely is the spraying device of trenchless pipeline repair. BACKGROUND

[0002] Trenchless pipeline repair technology is a kind of technology that carries out repair or update to underground pipeline without damaging the ground, and common trenchless repair methods include ultraviolet light curing repair method, spraying method, point in situ curing method, spiral winding repair method, hot turnover type CIPP repair, local resin repair technology, stainless steel quick lock repair method and micro-top short tube replacement, etc., wherein, spraying method is favored because of its simple construction, good repair effect and relatively low cost.Spraying repair technology is to use the principle of aerodynamics to uniformly spray the paste-shaped repair material prepared in advance to the inner surface of pipeline by special spraying machine, so that the repair material forms a continuous and dense inner lining layer on the pipe wall.

[0003] Spraying equipment is an indispensable tool in the process of trenchless pipeline repair, which is usually composed of a sprayer, a mixer, a high-pressure pump and a control system, etc., wherein, the sprayer is the core component, which is composed of a rotating frame and a spray head, and can uniformly spray the mixed coating on the inner wall surface of the pipeline, in the process of mechanical spraying repair of vertical pipeline, the operator directly hoists the sprayer into the pipeline, and as the sprayer descends in the pipeline, the repair material can be sprayed on the inner wall of the pipeline, however, the sprayer lacks effective limiting structure during use, in order to ensure the stability of the sprayer, the operator needs to hold the connecting pipe of the sprayer, which is not only inconvenient to operate, but also has high risk during operation, and is easy to fall into the well, etc., therefore, we propose the spraying device of trenchless pipeline repair. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing the spraying device of trenchless pipeline repair to solve the problems in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The spraying device of trenchless pipeline repair includes two symmetrical stands, a liftable movable plate is installed between the two stands, two detachable connecting frames are installed at the bottom of the movable plate;

[0007] A spraying mechanism is installed between the bottom ends of the two connecting frames, the spraying mechanism includes a mounting plate, a second motor is installed at the top of the mounting plate, a fixing frame is also fixed at the top of the mounting plate; two clamping plates are fixed on the outer walls of the two sides of the fixing frame, the bottom ends of the connecting frames are inserted between the two clamping plates; the output shaft of the second motor penetrates through the mounting plate and is coaxially keyed connected with a transmission shaft, the outer wall of the transmission shaft is coaxially keyed connected with an auger;

[0008] The bottom of the mounting plate is coaxially fixed with a conveying pipe, and the outer wall of the conveying pipe is provided with an interface; the transmission shaft penetrates through the conveying pipe, and the auger is located in the conveying pipe;

[0009] The bottom end of the conveying pipe is rotatably provided with a hollow rotary disc, the rotary disc is communicated with the conveying pipe, the bottom end of the transmission shaft penetrates into the rotary disc and is coaxially fixed with the inner bottom of the rotary disc; the outer wall of the rotary disc is fixed with a plurality of hollow protrusions, and the outer wall of the protrusions is provided with a plurality of spray holes for spraying repair materials.

[0010] Preferably, a strip-shaped slot is formed in each of the columns, a threaded rod is rotatably arranged in one side of the strip-shaped slot, and a guide rod is fixed in the other side of the strip-shaped slot; the threaded rod is threadedly connected with the movable plate, and the guide rod is slidably connected with the movable plate; a first motor is arranged at the top of the column and used for driving the threaded rod to rotate.

[0011] Preferably, the cross section of the fixing frame is in U shape, and the fixing frame is fixedly connected with the mounting plate through bolts.

[0012] Preferably, a cross beam is fixed at the top end between the two columns, and the first motor is fixedly connected with the top of the cross beam through bolts.

[0013] Preferably, connecting bolts are arranged at the upper and lower ends of the connecting frame, the lower connecting bolts penetrate through the clamping plate and are threadedly connected with the clamping plate; two connecting sleeves are fixed at the bottom of the movable plate, the top end of the connecting frame penetrates through the connecting sleeves, and the upper connecting bolts are threadedly connected with the connecting sleeves.

[0014] Preferably, the overall shape of the connecting frame is in Z shape, and the connecting frame is made of stainless steel material.

[0015] Preferably, bottom plates are fixed at the bottom ends of the columns through bolts, and the cross section of the bottom plate is in rectangular shape.

[0016] Preferably, the rotary disc and the protrusions are in one-piece structure, and the plurality of protrusions are annularly and equidistantly distributed.

[0017] Compared with the prior art, the utility model has the advantages of:

[0018] 1. By setting up the column and the spraying mechanism: when repairing the vertical pipeline, the two columns are erected at the wellhead of the pipeline, the threaded rod is driven to rotate by the first motor, the movable plate and the connecting frame are driven to move downward along with the rotation of the threaded rod, the connecting frame is fixedly connected with the spraying mechanism, the spraying mechanism is driven to stably move downward, and the spraying mechanism can uniformly spray the inner wall of the pipeline.

[0019] 2. When spraying, the second motor drives the transmission shaft to rotate, on one hand, the auger is installed on the transmission shaft, with the rotation of the auger, the repair material in the conveying pipe can be pushed downwards, avoiding the occurrence of blockage and the like, on the other hand, the transmission shaft drives the rotating disc to rotate, with the rotation of the rotating disc, the repair material is sprayed out through the multiple spray holes, so that the pipeline inner wall can be uniformly and comprehensively covered, thereby improving the repair effect of the pipeline inner wall. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of part of the structure in the utility model;

[0022] Figure 3 It is a schematic diagram of part of the structure in the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the spraying mechanism in the utility model;

[0024] Figure 5 It is a sectional view of the structure of the spraying mechanism in the utility model;

[0025] Figure 6 It is a schematic diagram of the structure of the rotating disc in the utility model;

[0026] In the drawing:

[0027] 1, stand; 10, strip-shaped groove; 11, bottom plate; 12, guide rod; 13, threaded rod; 14, movable plate; 140, connecting sleeve; 15, connecting frame; 150, connecting bolt; 16, cross beam; 17, first motor;

[0028] 2, spraying mechanism; 20, mounting plate; 21, fixed frame; 210, clamping plate; 22, second motor; 23, conveying pipe; 24, interface; 25, transmission shaft; 26, auger; 27, rotating disc; 28, protrusion; 280, spray hole. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] The embodiment provides a technical solution:

[0031] Please refer to Figures 1-6As shown, the trenchless pipeline repair sprayer comprises two symmetrical columns 1, a liftable movable plate 14 is installed between the two columns 1, two detachable connecting frames 15 are installed at the bottom of the movable plate 14; a strip-shaped slot 10 is formed on each column 1, a threaded rod 13 is rotatably installed in the strip-shaped slot 10 on one side, and a guide rod 12 is fixedly installed in the strip-shaped slot 10 on the other side; the threaded rod 13 is threadedly connected with the movable plate 14, and the guide rod 12 is slidably connected with the movable plate 14; a first motor 17 for driving the threaded rod 13 to rotate is installed at the top of the column 1. The first motor 17 drives the threaded rod 13 to rotate, thereby conveniently driving the movable plate 14 to lift, which is beneficial to the lifting of the spraying mechanism 2 and the stability of the spraying mechanism 2. The spraying mechanism 2 is installed between the bottom ends of the two connecting frames 15, and comprises a mounting plate 20, a second motor 22 is installed at the top of the mounting plate 20, and a fixed frame 21 is also fixed at the top of the mounting plate 20; two clamping plates 210 are fixedly installed on the outer walls of the two sides of the fixed frame 21, and the bottom ends of the connecting frames 15 are inserted between the two clamping plates 210; the output shaft of the second motor 22 penetrates through the mounting plate 20 and is coaxially keyed connected with a transmission shaft 25, the outer wall of the transmission shaft 25 is coaxially keyed connected with an auger 26; a conveying pipe 23 is coaxially fixed at the bottom of the mounting plate 20, an interface 24 is installed on the outer wall of the conveying pipe 23; the transmission shaft 25 penetrates through the conveying pipe 23, and the auger 26 is located in the conveying pipe 23; a hollow rotary disc 27 is rotatably installed at the bottom end of the conveying pipe 23, the rotary disc 27 is in communication with the conveying pipe 23, the bottom end of the transmission shaft 25 penetrates into the rotary disc 27 and is coaxially fixed with the inner bottom of the rotary disc 27; a plurality of hollow protrusions 28 are fixedly installed on the outer wall of the rotary disc 27, a plurality of spray holes 280 for spraying repair materials are formed in the outer wall of the protrusions 28.

[0032] In this embodiment, the cross-sectional shape of the fixed frame 21 is U-shaped, and the fixed frame 21 is fixedly connected with the mounting plate 20 by bolts. The U-shaped cross-section of the fixed frame 21 provides good strength and stability, and is tightly connected with the mounting plate 20 by bolts, ensuring that the structure is stable and easy to disassemble and maintain.

[0033] In this embodiment, a cross beam 16 is fixed at the top between the two columns 1, and the first motor 17 is fixedly connected with the top of the cross beam 16 by bolts. The design of the cross beam 16 enhances the stability of the entire structure and provides a support platform for the first motor 17. By bolt connection, it can ensure that the first motor 17 is stably installed on the cross beam 16, reducing vibration and shaking during operation.

[0034] In the embodiment, connecting bolts 150 are arranged at the upper and lower ends of the connecting frame 15, the lower connecting bolts 150 pass through the clamping plate 210 and are screwed with the clamping plate 210; the bottom of the movable plate 14 is fixed with two connecting sleeves 140, the top end of the connecting frame 15 passes through the connecting sleeves 140, and the upper connecting bolts 150 are screwed with the connecting sleeves 140. The design is conducive to the stable connection of the movable plate 14 with the fixed frame 21 through the connecting frame 15, and also conducive to the disassembly and assembly of the connecting frame 15, thereby improving the portability of the device.

[0035] In the embodiment, the overall shape of the connecting frame 15 is Z-shaped, and the connecting frame 15 is a finished product made of stainless steel. The Z-shaped design is conducive to the stable connection of the connecting frame 15 with the fixed frame 21, and the stainless steel material has excellent corrosion resistance and durability, which is suitable for use in harsh environments.

[0036] In the embodiment, the bottom plate 11 is fixed at both ends of the bottom of the stand 1 by bolts, and the cross-sectional shape of the bottom plate 11 is rectangular. The rectangular bottom plate 11 provides a stable support area, and the bolt fixation can ensure that the stand 1 is stably installed on the ground.

[0037] In the embodiment, the rotating disc 27 and the protrusions 28 are integrally formed, and the plurality of protrusions 28 are annularly and equidistantly distributed. The integrally formed structure enhances the integrity and strength of the rotating disc 27 and the protrusions 28, and the plurality of protrusions 28 are arranged to facilitate uniform and comprehensive spraying of the repair material.

[0038] It should be noted that the interface 24 in the embodiment is connected with the stirrer through a pipeline, and when the stirrer completes the processing of the repair material, the repair material is transported into the delivery pipe 23 through the pipeline and the interface 24 by the high-pressure pump, and then into the rotating disc 27, thereby providing continuous repair material for pipeline repair.

[0039] It should be noted that the first motor 17 and the second motor 22 involved in the embodiment are existing conventional technologies, which will not be described here.

[0040] In specific use, the user first connects the power supply of the first motor 17 and the second motor 22, and the first motor 17 and the second motor 22 start to work. The output shaft of the first motor 17 rotates to drive the threaded rod 13 to rotate, and since the movable plate 14 is screwed with the threaded rod 13, the movable plate 14 moves downward and drives the connecting frame 15 and the spraying mechanism 2 to move downward, while the output shaft of the second motor 22 rotates to drive the transmission shaft 25, the auger 26 and the rotating disc 27 to rotate. At this time, the repair material enters the delivery pipe 23 through the interface 24, and moves rapidly downward into the rotating disc 27 under the rotation of the auger 26, and finally the repair material is sprayed onto the inner wall of the pipeline through the plurality of spray holes 280. With the continuous downward movement of the spraying mechanism 2, the inner wall of the pipeline can be comprehensively sprayed and repaired.

[0041] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. Trenchless pipe rehabilitation spray applicator comprising two symmetrical upright columns (1), characterized in that: Two connecting frames (15) are detachably connected to the bottom of the movable plate (14). The spraying mechanism (2) is installed between the bottom ends of the two connecting frames (15), and comprises a mounting plate (20), a second motor (22) installed on the top of the mounting plate (20), and a fixing frame (21) fixed to the top of the mounting plate (20). Two clamping plates (210) are fixed to the two side walls of the fixing frame (21), and the bottom ends of the connecting frames (15) are inserted between the two clamping plates (210). The output shaft of the second motor (22) penetrates through the mounting plate (20) and is coaxially connected with a transmission shaft (25), and the outer wall of the transmission shaft (25) is coaxially connected with a screw auger (26). The bottom of the mounting plate (20) is coaxially fixed with a conveying pipe (23), and the outer wall of the conveying pipe (23) is provided with a connector (24). The transmission shaft (25) penetrates through the conveying pipe (23), and the screw auger (26) is located in the conveying pipe (23). The bottom end of the conveying pipe (23) is rotatably provided with a hollow rotary disc (27), the rotary disc (27) is communicated with the conveying pipe (23), the bottom end of the transmission shaft (25) penetrates into the rotary disc (27) and is coaxially fixed with the inner bottom of the rotary disc (27). The outer wall of the rotary disc (27) is fixed with a plurality of hollow protrusions (28), and the outer wall of the protrusion (28) is provided with a plurality of spray holes (280) for spraying the repair material.

2. The trenchless pipe rehabilitation sprayer of claim 1, wherein: The strip-shaped slots (10) are provided on the columns (1), a threaded rod (13) is rotatably installed in the strip-shaped slot (10) on one side, and a guide rod (12) is fixed in the strip-shaped slot (10) on the other side. The threaded rod (13) is threadedly connected with the movable plate (14), and the guide rod (12) is slidably connected with the movable plate (14). The top of the column (1) is provided with a first motor (17) for driving the threaded rod (13) to rotate.

3. The trenchless pipe rehabilitation applicator of claim 1, wherein: The cross section of the fixing frame (21) is U-shaped, and the fixing frame (21) is fixedly connected with the mounting plate (20) by bolts.

4. The trenchless pipe rehabilitation applicator of claim 1, wherein: The top end of the two columns (1) is fixed with a cross beam (16), and the first motor (17) is fixedly connected with the top of the cross beam (16) by bolts.

5. The trenchless pipe rehabilitation applicator of claim 1, wherein: The upper and lower ends of the connecting frame (15) are provided with connecting bolts (150), the lower connecting bolts (150) penetrate through the clamping plates (210) and are threadedly connected with the clamping plates (210). The bottom of the movable plate (14) is fixed with two connecting sleeves (140), the top end of the connecting frame (15) penetrates through the connecting sleeves (140), and the upper connecting bolts (150) are threadedly connected with the connecting sleeves (140).

6. The trenchless pipe rehabilitation applicator of claim 1, wherein: The overall shape of the connecting frame (15) is Z-shaped, and the connecting frame (15) is made of stainless steel material.

7. The trenchless pipe rehabilitation applicator of claim 1, wherein: The bottom of the column (1) is fixed with a bottom plate (11) by bolts, and the cross section of the bottom plate (11) is rectangular.

8. The trenchless pipe rehabilitation applicator of claim 1, wherein: The rotary disc (27) and the protrusion (28) are integrally formed, and a plurality of protrusions (28) are annularly and equally spaced.

Images