Repairing agent spray gun for repairing surface of cooling tower body

Abstract

The utility model discloses a repairing agent spray gun for repairing the surface of a cooling tower body, which comprises a spray gun main body, a guide mechanism is arranged on the spray gun main body, the spray gun main body comprises a gun body, a material pot and a nozzle, the nozzle is arranged at the front end of the gun body, and the material pot is arranged at the top of the gun body. The guide mechanism comprises a center shaft, a first support, a second support, an internal thread sleeve, a shaft sleeve and a lead screw, the center shaft is detachably installed on the nozzle, the first support and the second support are movably installed on the center shaft, and pulleys which are rotationally connected are arranged on the first support and the second support; the internal thread sleeve, the shaft sleeve and the lead screw are installed between the first support and the second support and used for adjusting the included angle between the two supports. The spray gun has the advantages that the guide mechanism ensures that the spraying distance is constant, the adjustment is convenient to adapt to surfaces with different curvatures, and the bristles are arranged to improve the adhesive force of paint, and the problems that a traditional spray gun is uneven in coating thickness, inconvenient to operate and large in arm burden are solved.

Description

Technical Field

[0001] This utility model relates to the field of spray gun technology, specifically a repair agent spray gun for repairing the surface of a cooling tower. Background Technology

[0002] Cooling towers, as crucial heat dissipation devices in industrial and commercial facilities, typically operate in harsh environments. Prolonged exposure to the external environment can lead to corrosion, aging, or damage to the tower's surface. This damage not only affects the cooling tower's appearance but, more importantly, reduces its heat dissipation efficiency and can even decrease structural strength, impacting overall operational safety. Therefore, regular maintenance and repair of cooling tower structures are essential.

[0003] Traditionally, the repair of cooling tower surfaces is usually done manually using a spray gun. However, existing spray guns have several significant drawbacks. Because it is difficult for operators to maintain a constant speed and distance while holding the spray gun, uneven coating thickness is likely to occur. Areas that are too thick may drip or run, while areas that are too thin cannot provide sufficient protection, especially for curved cooling tower structures. Prolonged handheld spray gun operation puts a significant strain on the arms and shoulders, easily leading to operator fatigue, which in turn affects the quality and safety of the work. Therefore, a repair agent spray gun for cooling tower surfaces is needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a repair agent spray gun for repairing the surface of a cooling tower. It has the advantages of a guiding mechanism to ensure a constant spraying distance, easy adjustment to adapt to surfaces with different curvatures, and brush bristles to improve the adhesion of the coating. It solves the problems of uneven coating thickness, inconvenient operation, and heavy burden on the arm caused by traditional spray guns.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a repair agent spray gun for repairing the surface of a cooling tower, comprising a spray gun body, wherein a guide mechanism is provided on the spray gun body;

[0006] The spray gun body includes a gun body, a material reservoir, and a nozzle. The nozzle is installed at the front end of the gun body, and the material reservoir is installed at the top of the gun body. The guide mechanism includes a central shaft, a first bracket, a second bracket, an internal threaded sleeve, a bushing, and a lead screw. The central shaft is detachably installed on the nozzle. The first and second brackets are movably installed on the central shaft. The first and second brackets are provided with rotatably connected pulleys. The internal threaded sleeve, bushing, and lead screw are installed between the first and second brackets to adjust the included angle between them.

[0007] As a preferred embodiment of the repair agent spray gun for repairing the surface of a cooling tower body according to this utility model, the first bracket is provided with a first ear plate rotatably connected to the central shaft, and the second bracket is provided with a second ear plate rotatably connected to the central shaft.

[0008] In a preferred embodiment of the present invention, a repair agent spray gun for repairing the surface of a cooling tower body is provided, wherein the internal threaded sleeve is movably mounted on a first bracket, the bushing is movably mounted on a second bracket, the lead screw passes through the bushing and is rotatably connected to it, the end of the lead screw is inserted into the internal threaded sleeve and threadedly connected to it, and a knob is provided at the end of the lead screw away from the internal threaded sleeve.

[0009] As a preferred embodiment of the repair agent spray gun for repairing the surface of a cooling tower body according to this utility model, the upper and lower sides of the internal threaded sleeve are provided with a first rotating shaft rotatably connected to the first bracket, and the upper and lower sides of the bushing are provided with a second rotating shaft rotatably connected to the second bracket.

[0010] As a preferred embodiment of the repair agent spray gun for repairing the surface of a cooling tower body according to this utility model, a hanging ring is provided at the top of the central shaft, the hanging ring is suspended near the nozzle of the gun body, and the nozzle is threadedly fixed to the gun body to press the hanging ring tight.

[0011] As a preferred embodiment of the repair agent spray gun for repairing the surface of a cooling tower body according to this utility model, an auxiliary support rod that fits into the gun body is provided at the bottom of the side end face of the central shaft.

[0012] As a preferred embodiment of the repair agent spray gun for repairing the surface of a cooling tower according to this utility model, the inner sides of both the first bracket and the second bracket are provided with bristles, which are made of stainless steel.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model forms a rigid support system through a central shaft, a first bracket with pulleys and adjustable angle, and a second bracket structure. The central shaft is detachably mounted on the nozzle and, together with the pulleys, rolls along the surface of the cooling tower, allowing the spray gun to slide at a fixed distance in the horizontal direction, ensuring a constant spraying distance. This solves the problem of uneven coating thickness caused by vibration or uneven spacing during manual operation. At the same time, the threaded design of the screw and knob allows for quick adjustment of the angle between the two brackets by rotating the knob, thereby flexibly controlling the distance between the nozzle and the tower surface to adapt to different curvatures or uneven areas. This structure not only improves the uniformity of spraying but also distributes the load on the operator's arm through mechanical support, significantly reducing fatigue during long-term operation.

[0015] 2. The nozzle and gun body of this utility model are fixed by a threaded hanging ring, which, together with the auxiliary support rod at the bottom of the central shaft, forms a double fixation, ensuring a rigid connection between the guide mechanism and the spray gun body. This design avoids the nozzle angle deviation problem caused by uneven force in traditional suspension structures. At the same time, the auxiliary support rod further disperses the operating pressure and prevents the hanging ring from deforming when pressing the gun body. In addition, the first bracket and the second bracket are rotatably connected through the central shaft, the first ear plate and the second ear plate. The internal threaded sleeve and the bushing rotate adaptively around the first and second rotating shafts, respectively, eliminating motion interference when adjusting the included angle, making the bracket angle change smoother, and ensuring the stability and reliability of the adjustment process.

[0016] 3. This utility model uses rigid bristles on the inner sides of the first and second supports to simultaneously brush the surface of the tower body during the movement of the spray gun. The bristles are made of wear-resistant material, which can remove surface dust and slightly polish the substrate before spraying, forming a rough interface to enhance the adhesion of the repair agent. This not only shortens the construction cycle, but also significantly extends the durability of the repair layer by improving the bonding strength between the coating and the substrate, thus solving the problem of coating peeling caused by incomplete surface treatment in traditional processes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the guiding mechanism structure of this utility model;

[0019] Figure 3 This is a left view of the guide mechanism of this utility model;

[0020] Figure 4 For the present utility model Figure 3 Sectional view of AA in the middle;

[0021] Figure 5 This is a schematic diagram of the main structure of the spray gun of this utility model.

[0022] In the diagram: 1. Guide mechanism; 101. Central shaft; 1011. Hanging ring; 1012. Auxiliary support rod; 102. First bracket; 1021. First ear plate; 1022. Pulley; 1023. Brush bristles; 103. Second bracket; 1031. Second ear plate; 104. Internal threaded sleeve; 1041. First rotating shaft; 105. Bushing; 1051. Second rotating shaft; 106. Lead screw; 1061. Knob; 2. Spray gun body; 201. Gun body; 202. Nozzle; 203. Material container. Detailed Implementation

[0023] Please see Figures 1-5A repair agent spray gun for repairing the surface of a cooling tower includes a spray gun body 2, and a guide mechanism 1 is provided on the spray gun body 2;

[0024] The spray gun body 2 includes a gun body 201, a material tank 203, and a nozzle 202. The nozzle 202 is installed at the front end of the gun body 201, and the material tank 203 is installed at the top of the gun body 201. The guide mechanism 1 includes a central shaft 101, a first bracket 102, a second bracket 103, an internal threaded sleeve 104, a bushing 105, and a lead screw 106. The central shaft 101 is detachably installed on the nozzle 202. The first bracket 102 and the second bracket 103 are movably installed on the central shaft 101. The first bracket 102 and the second bracket 103 are provided with pulleys 1022 that are rotatably connected. The internal threaded sleeve 104, the bushing 105, and the lead screw 106 are installed between the first bracket 102 and the second bracket 103 to adjust the included angle between them.

[0025] The spray gun body 2 is supported by the guide mechanism 1. The spray gun body 2 slides horizontally at a fixed distance on the surface of the cooling tower through the guide mechanism 1, which ensures the uniformity of spraying and provides auxiliary support, reducing arm soreness.

[0026] Furthermore, the first bracket 102 is provided with a first ear plate 1021 rotatably connected to the central shaft 101, and the second bracket 103 is provided with a second ear plate 1031 rotatably connected to the central shaft 101.

[0027] The rotating connection between the first bracket 102 and the second bracket 103 allows them to rotate around the central axis 101, thereby flexibly adjusting the angle between the first bracket 102 and the second bracket 103 to control the distance between the nozzle and the surface of the cooling tower and change the spraying range of the spray gun.

[0028] Furthermore, the internal threaded sleeve 104 is movably mounted on the first bracket 102, the bushing 105 is movably mounted on the second bracket 103, the lead screw 106 passes through the bushing 105 and is rotatably connected to it, the end of the lead screw 106 is inserted into the internal threaded sleeve 104 and is threadedly connected to it, and a knob 1061 is provided at the end of the lead screw 106 away from the internal threaded sleeve 104.

[0029] By rotating the knob 1061, the lead screw 106 is screwed into or out of the internal threaded sleeve 104, thereby changing the distance between the first support 102 and the second support 103, and thus changing the angle between the first support 102 and the second support 103. The knob 1061 adjustment method improves the convenience of adjusting the angle between the first support 102 and the second support 103.

[0030] Furthermore, the upper and lower sides of the internal threaded sleeve 104 are provided with a first rotating shaft 1041 that is rotatably connected to the first bracket 102, and the upper and lower sides of the bushing 105 are provided with a second rotating shaft 1051 that is rotatably connected to the second bracket 103.

[0031] The rotating connection of the internal threaded sleeve 104 and the bushing 105 structure allows the first support 102 and the second support 103 to rotate around the first rotating shaft 1041 and the second rotating shaft 1051 respectively when the included angle between them changes, thus avoiding motion interference and improving the stability of adjustment.

[0032] Furthermore, a hanging ring 1011 is provided at the top of the central shaft 101. The hanging ring 1011 is suspended from the gun body 201 near the nozzle 202. The nozzle 202 is threadedly fixed to the gun body 201 to press the hanging ring 1011 tight.

[0033] The central shaft 101 rotates at the lower end of the gun body 201, and both sets of rollers are located below the nozzle 202. During the spraying process, the rollers rotate around the cooling tower and spray. After the spraying is completed, the rollers gradually move downwards. When moving downwards to change rows, the rollers will not crush the paint that has already been sprayed at the top, thus improving the spraying effect.

[0034] Furthermore, an auxiliary support rod 1012 that fits against the gun body 201 is provided at the bottom of the side end face of the central shaft 101.

[0035] The central shaft 101 is supported by the auxiliary support rod 1012 to prevent the gun body 201 from being pressed during the spraying process, which would cause the hanging ring 1011 to bend, resulting in a change in the angle of the nozzle 202 and affecting the spraying effect.

[0036] Furthermore, the inner sides of both the first bracket 102 and the second bracket 103 are provided with bristles 1023, which are made of stainless steel.

[0037] The dust on the surface of the cooling tower is removed by using steel brush 1023, and the surface is polished to improve the adhesion of the coating, which in turn enhances the repair effect.

[0038] In use, the central shaft 101 is first suspended from the gun body 201 near the nozzle 202 via the hanging ring 1011. The hanging ring 1011 is then tightened by the threaded connection between the nozzle 202 and the gun body 201. Simultaneously, the central shaft 101 is further supported by the auxiliary support rod 1012 to ensure structural stability. Next, based on the actual surface of the cooling tower and the required spraying area, the knob 1061 at the end of the lead screw 106 is rotated. Since the lead screw 106 is threadedly connected to the internal threaded sleeve 104 and rotatably connected to the bushing 105, and the internal threaded sleeve 104 and bushing 105 are rotatably connected to the first support 102 and the second support 103 respectively, rotating the knob 1061 causes the lead screw 106 to screw into or out of the internal threaded sleeve 104, thereby adjusting the angle between the first support 102 and the second support 103 and controlling the nozzle. The distance between the spray gun and the surface of the cooling tower is determined. Then, the material container 203 is filled with repair agent. Holding the spray gun body 2, the rollers 1022 of the guide mechanism 1 on the spray gun body 2 are brought into contact with the surface of the cooling tower. The guide mechanism 1 supports the spray gun body 2, pushing it to slide horizontally at a fixed distance on the surface of the cooling tower. During the sliding process, the nozzle 202 of the spray gun body 2 evenly sprays the repair agent onto the surface of the cooling tower. At the same time, the steel bristles 1023 on the inner side of the first support 102 and the second support 103 will brush away the dust on the surface of the cooling tower below and polish it, improving the coating adhesion. After completing one round of spraying, the spray gun is gradually moved downwards. When moving downwards to change rows, since both sets of rollers are located below the nozzles 202, they will not crush the coating that has already been sprayed on the upper part, thus ensuring a good spraying effect until the repair spraying work of the entire surface of the cooling tower is completed.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A repair agent spray gun for repairing the surface of a cooling tower, comprising a spray gun body (2), characterized in that: The spray gun body (2) is provided with a guide mechanism (1); The spray gun body (2) includes a gun body (201), a material container (203), and a nozzle (202). The nozzle (202) is installed at the front end of the gun body (201), and the material container (203) is installed at the top of the gun body (201). The guide mechanism (1) includes a central shaft (101), a first bracket (102), a second bracket (103), an internal threaded sleeve (104), a bushing (105), and a lead screw (106). The central shaft (101) is detachably installed on the nozzle (202). The first bracket (102) and the second bracket (103) are movably installed on the central shaft (101). The first bracket (102) and the second bracket (103) are provided with rotatably connected pulleys (1022). The internal threaded sleeve (104), the bushing (105), and the lead screw (106) are installed between the first bracket (102) and the second bracket (103) to adjust the included angle between them.

2. The repair agent spray gun for repairing the surface of a cooling tower as described in claim 1, characterized in that: The first bracket (102) is provided with a first ear plate (1021) rotatably connected to the central shaft (101), and the second bracket (103) is provided with a second ear plate (1031) rotatably connected to the central shaft (101).

3. The repair agent spray gun for repairing the surface of a cooling tower as described in claim 2, characterized in that: The internal threaded sleeve (104) is movably mounted on the first bracket (102), the bushing (105) is movably mounted on the second bracket (103), the lead screw (106) passes through the bushing (105) and is rotatably connected to it, the end of the lead screw (106) is inserted into the internal threaded sleeve (104) and is threadedly connected to it, and a knob (1061) is provided at the end of the lead screw (106) away from the internal threaded sleeve (104).

4. The repair agent spray gun for repairing the surface of a cooling tower as described in claim 3, characterized in that: The upper and lower sides of the internal threaded sleeve (104) are provided with a first rotating shaft (1041) that is rotatably connected to the first bracket (102), and the upper and lower sides of the bushing (105) are provided with a second rotating shaft (1051) that is rotatably connected to the second bracket (103).

5. The repair agent spray gun for repairing the surface of a cooling tower as described in claim 1, characterized in that: A hanging ring (1011) is provided at the top of the central shaft (101). The hanging ring (1011) is suspended on the gun body (201) near the nozzle (202). The nozzle (202) is threadedly fixed to the gun body (201) to press the hanging ring (1011) tight.

6. The repair agent spray gun for repairing the surface of a cooling tower as described in claim 1, characterized in that: An auxiliary support rod (1012) that fits against the gun body (201) is provided at the bottom of the side end face of the central shaft (101).

7. The repair agent spray gun for repairing the surface of a cooling tower as described in claim 1, characterized in that: The inner sides of the first bracket (102) and the second bracket (103) are provided with bristles (1023), which are made of stainless steel.

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