External anti-corrosion spraying equipment for PCCP (prestressed concrete cylinder pipe)

Abstract

The utility model discloses PCCP (prestressed concrete cylinder pipe) external anti-corrosion spraying equipment which comprises an annular frame, a spray gun is assembled on the annular frame, a limiting groove is formed in one side of the annular frame, a through groove which is identical with the limiting groove in shape and concentric with the limiting groove is formed in the limiting groove, a connecting plate is slidably connected in the limiting groove, and a motor is installed on the front surface of the connecting plate. The lower end of the other face of the connecting plate is connected with a rotating shaft through a bearing, the rotating shaft is sleeved with the lower end of the crawler belt, the end of the rotating shaft is fixedly sleeved with a gear, a gear ring is arranged on the other side of the ring frame, the gear is meshed with the gear ring, and the spray gun is installed below the motor on the front surface of the connecting plate. The spraying device is composed of the annular frame, the spraying gun and the winding machine, anti-corrosion spraying of the pipeline in the horizontal state can be achieved through the device, when the pipeline is horizontally placed, flowing of paint on the inner wall of the pipeline is more stable, the influence of gravity is small, uniform distribution of the paint is facilitated, and the consistent coating thickness is formed; therefore, the reliability of the anti-corrosion effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of spraying device, concretely is a kind of PCCP pipe outer anticorrosion spraying equipment. BACKGROUND

[0002] At present, in order to realize the large-scale facade spraying operation function, manual spraying operation is usually carried out by means of rope or foot stand equipment, and this construction method not only has large difficulty coefficient but also has very high risk coefficient, and when facing large-scale facade of dozens of meters or even hundreds of meters, injury and death event is prone to occur, and the spraying material used by spraying equipment mostly contains harmful chemical substances to man-machine, which can cause certain harm to the health of workers, and long-term operation in such environment is a great damage to physiology and psychology.

[0003] The PCCP pipe automatic anticorrosion spraying device disclosed in Chinese utility model patent CN215586872U realizes three-dimensional direction movement of spraying equipment and realizes spraying function by setting lifting mechanism, supporting platform, rotating platform and driving structure, so that large-scale facade spraying operation can be carried out more conveniently, safely and efficiently, and the problems of consumption of manpower and material resources of existing spraying equipment and danger and low efficiency of existing equipment are solved.

[0004] In the prior art, for the anticorrosion spraying of PCCP pipe, the PCCP pipe needs to be erected, and this method still needs to lift the PCCP pipe and adjust the pipeline to vertical state before placing it on the supporting platform, which has certain risk, and the pipeline needs to be replaced for new round construction after drying of the anticorrosion surface after spraying. SUMMARY

[0005] This section aims to outline some aspects of the embodiments of the present utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the present utility model.

[0006] To solve the problems in the above background art, the present utility model adopts the following technical solutions.

[0007] A PCCP pipe outer anticorrosion spraying equipment, comprising a ring frame, a spray gun is assembled on the ring frame, a limiting slot is formed on one side of the ring frame, a through slot identical in shape and concentric with the limiting slot is formed in the limiting slot, a connecting plate is slidably connected in the limiting slot, a motor is installed on the front surface of the connecting plate, the driving end of the motor passes through the through slot and is sleeved with a caterpillar belt, the other end of the connecting plate is connected with a rotating shaft through a bearing, the lower end of the caterpillar belt is sleeved on the rotating shaft, a gear is fixedly sleeved on the end of the rotating shaft, a gear ring is arranged on the other side of the ring frame, the gear is engaged on the gear ring, and the spray gun is installed below the motor on the front surface of the connecting plate.

[0008] The connecting plate is in a convex structure as a whole, the motor is assembled at the upper end of the connecting plate, a slide block is symmetrically arranged at the lower end of the connecting plate and opposite to the motor mounting surface, and the connecting plate is slidably connected with the limiting groove through the slide block, and the rotating shaft is located between the pair of slide blocks.

[0009] The lower surface of the spray gun is connected with a plurality of spray pipes at equal intervals, the spray pipes are communicated with the interior of the spray gun, the end of the spray pipe is provided with a spray head, the end of the spray gun is connected with a material conveying hose, and the end of the material conveying hose is connected with a paint storage device.

[0010] The diameter of the ring frame is equal to the outer diameter of the PCCP pipe, a plurality of supports are connected at equal intervals on the inner arc surface of the ring frame, auxiliary wheels are assembled on the supports, and the auxiliary wheels of the ring frame are in contact with the surface of the PCCP pipe when the ring frame is erected on the PCCP pipe.

[0011] The driving end of the motor and the rotating shaft are both fixedly sleeved with track wheels, the inner surfaces of the tracks are both provided with sawteeth, and the two ends of the track are sleeved on the track wheels.

[0012] The two ends of the ring frame are fixedly connected with hanging rings, the hanging rings are connected with traction cables, a winding machine matched with the ring frame is arranged, and the two ends of the traction cable are wound on the winding machine.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] (1) the spraying device is composed of the ring frame, the spray gun and the winding machine, the device can realize anticorrosive spraying of the pipeline in a horizontal state, when the pipeline is placed horizontally, the flow of the paint on the inner wall of the pipeline is more stable, the influence of gravity is smaller, the paint is evenly distributed, a consistent coating thickness is formed, the reliability of the anticorrosive effect is improved, detection and maintenance are relatively easy after spraying in the horizontal state, the staff can easily walk on the plane, check whether the coating is missed or defective, and problems found can be quickly remedied.

[0015] (2) the spray gun on the semicircular frame in the spraying device can move freely in a semicircular range, ensures that the anticorrosive agent can be evenly covered on the outer wall of the pipeline, a protective layer with consistent thickness is formed, the problems of missed spraying and uneven thickness that may occur during manual spraying are avoided, the winding machine drives the semicircular frame to uniformly retreat on the pipeline, automatic spraying is realized, the demand for manual operation is greatly reduced, the construction progress is accelerated, and the spraying device is particularly suitable for large-scale anticorrosive operation of long-distance pipelines.

[0016] (3) Since the spraying process of the utility model is highly controllable, the amount of paint used is precisely managed, which avoids unnecessary waste and reduces overall costs. The automated spraying system can better control the scattering and volatilization during the spraying process, reduce the pollution of paint solvents to the surrounding environment, and meet environmental protection requirements. The application of automated equipment greatly reduces the dependence on skilled workers, reduces labor intensity, and at the same time reduces human errors, which indirectly reduces labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the assembly drawing of the anti-corrosion spraying equipment and its winding device in this utility model.

[0018] Figure 2 This is the overall structural diagram of the anti-corrosion spraying equipment in this utility model.

[0019] Figure 3 This is a cross-sectional view of the anti-corrosion spraying equipment in this utility model.

[0020] Figure 4 For this utility model Figure 3 A partial enlarged view of the driving mechanism at point A in the middle.

[0021] Figure 5 This is a working diagram of the anti-corrosion spraying equipment in this utility model.

[0022] The corresponding relationship between the illustration labels and component names in the figure is as follows:

[0023] 100. Ring frame; 101. Limiting groove; 102. Auxiliary wheel; 103. Gear ring; 104. Hanging ring; 105. Connecting plate; 1051. Spray gun; 1052. Feed hose; 1053. Motor; 1054. Track; 1055. Rotating shaft; 1056. Gear; 200. Winder; 201. Towing cable. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0027] See Figure 1 and Figure 2 as well as Figure 5 The anti-corrosion spraying device for the PCCP pipe in this embodiment includes a ring frame 100. The ring frame 100 is the basic equipment of the device. All components are installed based on the ring frame 100. The ring frame 100 is equipped with a spray gun 1051. The spray gun 1051 is used to spray the anti-corrosion coating on the surface of the PCCP pipe. In order to further improve the solution of the spraying device, a limiting groove 101 is provided on one side of the ring frame 100 in this embodiment. A through groove with the same shape and concentricity is provided in the limiting groove 101. A connecting plate 105 is slidably connected, and a motor 1053 is installed on the front surface of the connecting plate 105. The driving end of the motor 1053 passes through the through slot and is sleeved with a crawler 1054. The lower end of the other side of the connecting plate 105 is connected to a rotating shaft 1055 by a bearing. The lower end of the crawler 1054 is sleeved on the rotating shaft 1055. The end of the rotating shaft 1055 is fixedly sleeved with a gear 1056. A gear ring 103 is provided on the other side of the ring frame 100. The spray gun 1051 is installed below the motor 1053 on the front surface of the connecting plate 105. In this embodiment, the motor 1053 is started through the motor 1 053 rotates and drives the crawler 1054 sleeved on its driving end to rotate, and the crawler 1054 drives the rotating shaft 1055 to rotate synchronously. The rotating shaft 1055 is connected to the connecting plate 105 through a bearing, so the skill has a stable connection to the connecting plate 105 and can be driven by the crawler 1054 to rotate. When the rotating shaft 1055 rotates, the gear 1056 fixed on it rotates, and the gear 1056 is engaged with the gear ring 103, so that when the gear 1056 rotates, it moves along the circumference direction of the gear 1056, thereby synchronously driving the connecting plate 105 moves accordingly, so that the spray gun 1051 installed on the connecting plate 105 will move around the circumferential direction of the PCCP pipe. Furthermore, in order to ensure the connection stability between the driving end of the motor 1053, the track 1054 and the rotating shaft 1055, this embodiment has track wheels fixedly mounted on the driving end of the motor 1053 and the rotating shaft 1055, and the inner surface of the track 1054 is provided with serrations, and the two ends of the track 1054 are mounted on the track wheels, so that the anti-corrosion paint sprayed by the spray gun 1051 is evenly adhered to the PCCP pipe.

[0028] See Figure 3 and Figure 4In this embodiment, the connecting plate 105 has a convex-shaped structure as a whole, which reduces weight and volume while meeting the installation requirements, and the motor 1053 is assembled on the upper end of the connecting plate 105. The lower end of the connecting plate 105 and the side opposite to the installation surface of the motor 1053 are symmetrically provided with sliders. The connecting plate 105 is slidably connected to the limiting groove 101 through the slider, so that a certain distance is maintained between the connecting plate 105 and the ring frame 100 to meet the installation requirements of the crawler 1054. The movement of the connecting plate 105 on the ring frame 100 is achieved by the gear 1056 rotating on the gear ring 103. Therefore, in order to ensure the stability of the connecting plate 105 during movement, the rotating shaft 1055 is set between a pair of sliders in this embodiment.

[0029] See Figure 2 and Figure 3 The lower surface of the spray gun 1051 is equidistantly connected with multiple nozzles to increase the spraying area, and the nozzles are connected to the inside of the spray gun 1051. A nozzle is installed at the end of the nozzle, and the anti-corrosion paint is atomized by the nozzle to make the paint adhere more evenly. The end of the spray gun 1051 is connected to a feed hose 1052, and the end of the feed hose 1052 is connected to an external paint storage device, and the anti-corrosion paint in the paint storage device is transported to the spray gun 1051 through the feed hose 1052.

[0030] See Figure 5 After the PCCP pipe is sprayed, the spraying equipment needs to be transferred to the PCCP pipe that has not been treated with anti-corrosion. Therefore, in order to facilitate the installation of the ring stand 100 on the PCCP pipe that has not been treated with anti-corrosion, the diameter of the ring stand 100 in this embodiment is equal to the outer diameter of the PCCP pipe. Furthermore, in order to reduce the friction between the ring stand 100 and the PCCP pipe and facilitate the movement of the ring stand 100 on the PCCP pipe, a plurality of brackets are equidistantly connected to the inner arc surface of the ring stand 100 in this embodiment. The brackets are equipped with auxiliary wheels 102. When the ring stand 100 is installed on the PCCP pipe, its auxiliary wheels 102 are in contact with the surface of the PCCP pipe.

[0031] It is worth noting that since the diameter of the ring frame 100 is equal to the outer diameter of the PCCP pipe, the anti-corrosion paint can only cover half of the pipe during a single spraying. Therefore, in actual use, after half of the pipe surface area is sprayed with the anti-corrosion paint, the pipe needs to be rotated by mechanical equipment to turn the other unsprayed half of the pipe upward. The PCCP pipe needs to be padded with pads. The steel pipe in the PCCP pipe is longer than the concrete section, so the pads are placed on the steel pipe to prevent the pads from being contaminated by the undried paint layer.

[0032] See Figure 1 and Figure 5In order to drive the ring frame 100 to retreat on the PCCP pipe so that the spray gun 1051 can spray evenly, in this embodiment, hanging rings 104 are fixedly connected to both ends of the ring frame 100. The hanging rings 104 are connected to the traction cables 201. A winder 200 is provided in conjunction with the ring frame 100. Two ends of the traction cables 201 are wound around the winder 200. The winder 200 winds up the traction cables 201 to pull the ring frame 100 backward on the PCCP pipe, and the auxiliary wheels 102 roll on the PCCP pipe to reduce friction.

[0033] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the concept of the present invention, which should be regarded as falling within the scope of protection determined by the claims submitted for the present invention.

Claims

1. A PCCP pipe external anti-corrosion spraying device, comprising a ring frame (100), wherein the ring frame (100) is equipped with a spray gun (1051), Its characteristics are: A limiting groove (101) is provided on one side of the ring frame (100), a through groove of the same shape and concentric with the limiting groove (101) is provided in the limiting groove (101), a connecting plate (105) is slidably connected in the limiting groove (101), a motor (1053) is installed on the front surface of the connecting plate (105), a driving end of the motor (1053) passes through the through groove and is sleeved with a crawler (1054), the lower end of the other side of the connecting plate (105) is connected to a rotating shaft (1055) by means of a bearing, the lower end of the crawler (1054) is sleeved on the rotating shaft (1055), and a gear (1056) is fixedly sleeved on the end of the rotating shaft (1055), a gear ring (103) is provided on the other side of the ring frame (100), the gear (1056) is meshed with the gear ring (103), and the spray gun (1051) is installed below the motor (1053) on the front surface of the connecting plate (105).

2. The PCCP pipe external anti-corrosion spraying equipment according to claim 1 is characterized by: The connecting plate (105) is in a convex-shaped structure as a whole, and the motor (1053) is mounted on the upper end of the connecting plate (105). Sliders are symmetrically provided at the lower end of the connecting plate (105) and on a side opposite to the mounting surface of the motor (1053). The connecting plate (105) is slidably connected to the limiting groove (101) via the slides, and the rotating shaft (1055) is located between the pair of slides.

3. The PCCP pipe external anti-corrosion spraying equipment according to claim 1 is characterized by: The lower surface of the spray gun (1051) is equidistantly connected to a plurality of nozzles, which are communicated with the interior of the spray gun (1051). A nozzle is installed at the end of the nozzle. The end of the spray gun (1051) is connected to a material delivery hose (1052), and the end of the material delivery hose (1052) is connected to an external paint storage device.

4. The PCCP pipe external anti-corrosion spraying equipment according to claim 1 is characterized by: The diameter of the ring frame (100) is equal to the outer diameter of the PCCP pipe, and a plurality of brackets are equidistantly connected to the inner arc surface of the ring frame (100). Auxiliary wheels (102) are mounted on the brackets. When the ring frame (100) is mounted on the PCCP pipe, the auxiliary wheels (102) contact the surface of the PCCP pipe.

5. The PCCP pipe external anti-corrosion spraying equipment according to claim 1 is characterized by: Track wheels are fixedly sleeved on the driving end of the motor (1053) and the rotating shaft (1055); saw teeth are provided on the inner surface of the track (1054), and both ends of the track (1054) are sleeved on the track wheels.

6. The PCCP pipe external anti-corrosion spraying equipment according to claim 1 is characterized by: Both ends of the ring frame (100) are fixedly connected with hanging rings (104), and a traction cable (201) is connected to the hanging ring (104). A winding machine (200) is provided in conjunction with the ring frame (100), and two sections of the traction cable (201) are wound on the winding machine (200).

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