A curtain wall steel keel fluorocarbon spraying equipment

By designing a fluorocarbon coating equipment for curtain wall steel keel with a handheld lever and adjustment mechanism, the problems of low efficiency and insufficient safety in the coating construction of curtain wall steel keel have been solved. It achieves efficient coating of the keel in all directions, especially the back coating, which improves construction efficiency and safety.

CN117344944BActive Publication Date: 2026-05-26THE FIRST COMPARY OF CHINA EIGHTH ENG BUREAU LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
THE FIRST COMPARY OF CHINA EIGHTH ENG BUREAU LTD
Filing Date
2023-10-19
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

During the spraying of curtain wall steel keel, workers need to erect scaffolding or use aerial work platforms for spraying, resulting in low work efficiency and difficulty in ensuring safety, especially in the inability to effectively spray the back of the keel.

Method used

A fluorocarbon spraying device for curtain wall steel keel was designed, including a handheld lever, an adjustment mechanism, a control mechanism, and a limiting mechanism. By adjusting the position and movement of the spray gun, the device can achieve all-round spraying of the keel, especially the back spraying, reducing the movement of scaffolding or aerial work vehicles.

Benefits of technology

It enables the expansion of the spraying area without moving scaffolding or aerial work platforms, improving spraying efficiency and safety, ensuring worker safety, and simplifying the operation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a fluorocarbon spraying device for curtain wall steel keel, relating to the field of curtain wall construction equipment. The technical solution includes a handheld rod with an arc-shaped fixing frame fixed at one end. An adjustment mechanism for adjusting the position of the spray gun is mounted on the fixing frame, and the spray gun is mounted on the adjustment mechanism. A control mechanism for driving the adjustment mechanism is located in the middle of the handheld rod. A limiting mechanism for limiting the control mechanism is also provided on the handheld rod. The beneficial effects of this invention are: it extends the usable range of the spray gun, allowing the operator to expand the spraying area without moving scaffolding or aerial work platforms; it enables painting of the rear of the keel, improving ease of use, reducing the need for scaffolding or aerial work platform movement, and ensuring worker safety.
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Description

Technical Field

[0001] This invention relates to the field of curtain wall construction equipment, and in particular to a fluorocarbon spraying equipment for curtain wall steel keel. Background Technology

[0002] Glass curtain walls are a commonly used building material. Before installing glass curtain walls, keels need to be installed on the building first. Keels are the frames of glass curtain walls. Keels are a general term. According to the material, they can be divided into aluminum and steel. According to the structure, they can be divided into horizontal and vertical members, also called horizontal keels and vertical keels.

[0003] Fluorocarbon topcoat for glass curtain walls is an anti-corrosion finishing material with fluororesin as its main component. With the booming development of my country's curtain wall industry, the production standards for fluorocarbon paint on steel keels are becoming increasingly standardized, and its application in curtain wall projects is also growing. Its excellent weather resistance, corrosion resistance, and decorative properties indicate a broad application prospect in the field of curtain wall construction.

[0004] During the on-site construction process, the project team adopted the method of factory manufacturing and on-site installation. After rust removal in the factory, fluorocarbon primer was applied, and on-site special putty, sealing paint and topcoat were sprayed.

[0005] Due to the considerable height of the curtain wall steel keel, workers need to erect scaffolding or use aerial work platforms to spray the keel during actual painting operations. Since the keel is mainly tubular or "H" shaped steel, workers cannot spray the back of the keel while standing on scaffolding or aerial work platforms, requiring them to move the scaffolding or aerial work platforms. This results in low work efficiency during the painting operation and compromises the safety of the workers. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention provides a fluorocarbon spraying device for curtain wall steel keel.

[0007] The technical solution includes a handheld lever, one end of which is fixedly provided with an arc-shaped fixing frame, the fixing frame is provided with an adjustment mechanism for adjusting the position of the spray gun, the spray gun is mounted on the adjustment mechanism, and the middle part of the handheld lever is provided with a control mechanism for driving the adjustment mechanism to move.

[0008] The handheld lever is also provided with a limiting mechanism for limiting the control mechanism.

[0009] Preferably, the adjusting mechanism includes several sets of scissor lift units disposed on the fixed frame. Each set of scissor lift units includes two connecting rods that are rotatably connected to each other. Each connecting rod has a connecting hole at both ends, and the connecting hole is used to connect with the connecting hole of the adjacent scissor lift unit.

[0010] One of the connecting rods at the end furthest from the handheld lever is rotatably connected to the fixed frame via a connecting rod;

[0011] At the other end, a transition rod is rotatably connected to each of the two connecting rods. The two transition rods are rotatably connected to each other, and a mounting base is rotatably provided at the connection point of the two transition rods. The spray gun is mounted on the mounting base.

[0012] Preferably, the fixing frame has a convex groove, and two sliders are slidably disposed in the groove. The two sliders are respectively rotatably connected to two scissor units near the connecting rod.

[0013] Preferably, the control mechanism includes a control handle rotatably mounted on the handgrip, and a pull rod is rotatably mounted on the middle of each side of the control handle;

[0014] A cylindrical rotating column is rotatably mounted on the fixed frame, and a spiral guide groove is opened on the rotating column. The movable end of the pull rod slides in the guide groove.

[0015] A drive gear is coaxially fixed on the rotating column, and an arc-shaped rack is fixed on one of the sliders near the connecting rod. The rack meshes with the drive gear.

[0016] Preferably, an annular limiting ring is fixedly provided on each side of the control handle.

[0017] Preferably, the limiting mechanism includes two sets of limiting components arranged in parallel on the hand handle, the two limiting components are respectively located on both sides of the control handle, and the limiting ring of the control handle is detachably connected to at least one of the limiting components;

[0018] Each of the limiting components includes two protrusions fixedly mounted on the hand handle. A spring pin is slidably mounted on each protrusion. The two spring pins are arranged opposite to each other. A guide rod is fixedly mounted on the side wall of each spring pin. The guide rod extends into the hand handle. An adjusting rod is slidably mounted inside the hand handle.

[0019] Preferably, the adjusting rod is rectangular, and a triangular control plate is fixedly installed at each of the two ends of the adjusting rod. The two side walls of the control plate are respectively attached to the two guide rods of one of the limiting components.

[0020] A long rod is fixedly installed at one end of the adjusting rod away from the adjusting mechanism. A driving rod is rotatably installed at one end of the long rod. A button is rotatably installed at the movable end of the driving rod. One end of the button is rotatably connected to the hand handle.

[0021] Preferably, a spring is provided between the long rod and the hand handle.

[0022] Preferably, a control unit is fixedly provided at one end of the handheld lever.

[0023] Preferably, a rubber grip sleeve is fixedly provided at one end of the hand lever near the control unit.

[0024] The beneficial effects of the technical solution provided by the embodiments of the present invention are: it can extend the application range of the spray gun, enabling the operator to expand the spraying range without moving the scaffolding or aerial work platform; it can spray paint on the back of the keel, improving the convenience of use, reducing the movement of scaffolding or aerial work platform, and ensuring the safety of workers. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention.

[0026] Figure 2 This is a schematic diagram of the adjustment mechanism according to an embodiment of the present invention. Figure 1 .

[0027] Figure 3 This is a schematic diagram of the adjustment mechanism according to an embodiment of the present invention. Figure 2 .

[0028] Figure 4 This is a schematic diagram of the handheld lever according to an embodiment of the present invention.

[0029] Figure 5 for Figure 4 Enlarged schematic diagram of part A.

[0030] Figure 6 for Figure 4 Enlarged diagram of part B.

[0031] Figure 7 This is a schematic diagram of the internal structure of the handheld lever according to an embodiment of the present invention.

[0032] Figure 8 This is a schematic diagram of the rotating column and rack according to an embodiment of the present invention.

[0033] The attached figures are labeled as follows: 1. Handheld lever; 1-1. Fixing frame; 1-2. Slide groove; 1-3. Slider; 2. Adjustment mechanism; 2-1. Scissor lift unit; 2-2. Connecting rod; 2-3. Connecting rod; 2-4. Adapter rod; 2-5. Mounting base; 3. Control mechanism; 3-1. Control handle; 3-2. Pull rod; 3-3. Rotating column; 3-4. Drive gear; 3-5. Rack; 3-6. Limiting ring; 4. Limiting mechanism; 4-1. Limiting component; 4-2. Protrusion; 4-3. Spring pin; 4-4. Guide rod; 4-5. Adjusting rod; 4-6. Control panel; 4-7. Long rod; 4-8. Drive rod; 4-9. Button; 4-10. Spring; 5. Spray gun; 6. Control unit. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0036] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] Example 1

[0039] See Figures 1 to 8 The present invention provides a fluorocarbon spraying equipment for curtain wall steel keel, including a hand handle 1, an arc-shaped fixing frame 1-1 fixedly installed at one end of the hand handle 1, an adjustment mechanism 2 for adjusting the position of the spray gun 5 installed on the fixing frame 1-1, the spray gun 5 installed on the adjustment mechanism 2, and a control mechanism 3 for driving the adjustment mechanism 2 to move in the middle of the hand handle 1.

[0040] The hand lever 1 is also equipped with a limit mechanism 4 for limiting the control mechanism 3.

[0041] The adjustment mechanism 2 includes several sets of scissor units 2-1 set on the fixed frame 1-1. Each set of scissor units 2-1 includes two connecting rods 2-2 that are rotatably connected to each other. The middle part of the two connecting rods 2-2 is rotatably connected in an arc shape. The rotating column 3-3 of the two connecting rods 2-2 is offset from the central axis of the connecting rods 2-2, so that the moving trajectory of the scissor unit 2-1 is consistent with the shape of the fixed frame 1-1. When the scissor unit 2-1 is extended, the moving trajectory of the spray gun 5 is arc-shaped. Each connecting rod 2-2 has a connecting hole at both ends, which is used to connect with the connecting hole of the adjacent scissor unit 2-1.

[0042] One of the connecting rods 2-2 at the end away from the handheld lever 1 is rotatably connected to the fixed frame 1-1 via a connecting rod 2-3;

[0043] At the other end, a transition rod 2-4 is rotatably connected to each of the two connecting rods 2-2. The two transition rods 2-4 are rotatably connected to each other. A mounting base 2-5 is rotatably set at the connection point of the two transition rods 2-4. A spray gun 5 is installed on the mounting base 2-5. The spray gun 5 can be detachably connected to the mounting base 2-5 through clamps, clips, etc. The installation method is simple, adaptable to the actual use of the spray gun 5 on site, and reduces the cost of use.

[0044] A convex-shaped groove 1-2 is provided on the fixed frame 1-1. Two sliders 1-3 are slidably arranged in the groove 1-2. The two sliders 1-3 are rotatably connected to two scissor units 2-1 near the connecting rod 2-3. The two connecting rods 2-2 of the scissor unit 2-1 rotate on the sliders 1-3.

[0045] The slide 1-2 can restrict the movement trajectory of the slider 1-3. Under the combined action of multiple scissor units 2-1, the movement trajectory of the mounting base 2-5 can be arc-shaped, which makes it easier for the operator to spray paint the back of the keel and improves the convenience of use.

[0046] The control mechanism 3 includes a control handle 3-1 that is rotatably mounted on the hand lever 1, and a pull rod 3-2 that is rotatably mounted on the middle of each side of the control handle 3-1;

[0047] A cylindrical rotating column 3-3 is rotatably mounted on the fixed frame 1-1. A spiral guide groove is opened on the rotating column 3-3, and the movable end of the pull rod 3-2 slides in the guide groove.

[0048] A drive gear 3-4 is coaxially fixed on the rotating column 3-3, and an arc-shaped rack 3-5 is fixed on a slider 1-3 near the connecting rod 2-3. The rack 3-5 meshes with the drive gear 3-4.

[0049] When adjustment of the adjustment mechanism 2 is required, the operator pulls the control handle 3-1. The control handle 3-1 drives the pull rod 3-2 to move. Under the action of the guide groove, the pull rod 3-2 can drive the rotating column 3-3 to rotate. The rotating column 3-3 drives the drive gear 3-4 to rotate. The drive gear 3-4 drives the rack 3-5 to rotate, thereby driving the slider 1-3 to move in the slide groove 1-2. Under the joint action of the scissor unit 2-1, the movement trajectory of the mounting base 2-5 can be made arc-shaped, which makes it easier for the operator to paint the back of the keel and improves the convenience of use.

[0050] When using this device, the operator can hold the hand lever 1 with one hand and the control handle 3-1 with the other hand. By continuously moving the control handle 3-1, the spray gun 5 can be driven to move back and forth in an arc on the outside of the steel keel. This allows for all-round spraying of the steel keel in the area, ensuring uniform spraying and improving spraying efficiency.

[0051] A ring-shaped limiting ring 3-6 is fixedly installed on each side of the control handle 3-1.

[0052] The limiting mechanism 4 includes two sets of limiting components 4-1 arranged in parallel on the hand lever 1. The two limiting components 4-1 are located on both sides of the control handle 3-1 respectively. The limiting ring 3-6 of the control handle 3-1 is detachably connected to at least one of the limiting components 4-1.

[0053] Each set of limiting components 4-1 includes two protrusions 4-2 fixedly mounted on the hand handle 1. A spring pin 4-3 is slidably mounted on each protrusion 4-2. The two spring pins 4-3 are arranged opposite to each other. A guide rod 4-4 is fixedly mounted on the side wall of each spring pin 4-3. The guide rod 4-4 extends into the hand handle 1. An adjusting rod 4-5 is slidably mounted inside the hand handle 1.

[0054] The adjusting rod 4-5 is rectangular in shape, and a triangular control plate 4-6 is fixedly installed at each of the two ends of the adjusting rod 4-5. The two side walls of the control plate 4-6 are respectively attached to the two guide rods 4-4 of one of the limiting components 4-1.

[0055] A long rod 4-7 is fixedly installed at the end of the adjusting rod 4-5 away from the adjusting mechanism 2. A drive rod 4-8 is rotatably installed at one end of the long rod 4-7. A button 4-9 is rotatably installed at the movable end of the drive rod 4-8. One end of the button 4-9 is rotatably connected to the hand handle 1.

[0056] In use, the operator can press button 4-9 with their thumb while holding the handle 1, making the control convenient and quick. Button 4-9 moves the drive rod 4-8, which in turn moves the adjusting rod 4-5 to the side of button 4-9. The control plates 4-6 at both ends of the adjusting rod 4-5 push the two guide rods 4-4, causing the two spring pins 4-3 to move away from each other. At this time, the spring pins 4-3 separate from the limit ring 3-6, making it easier for the operator to turn the control handle 3-1. Under the action of the pull rod 3-2, one of the sliders 1-3 moves, thereby adjusting the adjusting mechanism 2 and facilitating the operator to perform painting operations on the back of the keel.

[0057] A spring 4-10 is installed between the long rod 4-7 and the hand handle 1. The spring 4-10 enables the adjusting rod 4-5 to remain stable when the operator does not press the knob, so that the two spring pins 4-3 are always in contact and lock the control handle 3-1.

[0058] A control unit 6 is fixedly installed at one end of the handheld lever 1. The control unit 6 adopts the brake assembly of a bicycle. The pull cable is a brake cable. The pull cable passes through the handheld lever 1. One end of the pull cable is connected to the brake lever, and the other end is connected to the trigger of the spray gun 5. By squeezing the brake lever, the trigger of the spray gun 5 can be activated.

[0059] A rubber grip is fixedly installed at one end of the hand lever 1 near the control unit 6. The rubber grip facilitates the grip during operation. Correspondingly, a rubber grip is also installed in the middle of the hand lever 1 to improve the operator's comfort during use.

[0060] When using this invention, when spraying sealant and topcoat onto the steel keel, the operator first fixes the spray gun 5 on the mounting base 2-5 of this device and fixes one end of the pull cable to the trigger of the spray gun 5. The operator then controls the continuous movement of the spray gun 5 by holding the hand lever 1 with both hands to spray the steel keel. The extended range of movement of the spray gun 5 by the hand lever 1 allows the operator to achieve a larger spraying area as much as possible without moving the scaffolding or aerial work platform.

[0061] When it is necessary to spray paint on the back of the steel keel, the operator can press the button 4-9 with his thumb while holding the hand lever 1. Under the action of the adjusting rod 4-5, the spring pin 4-3 separates from the limit ring 3-6, making it easy for the operator to turn the control handle 3-1.

[0062] The operator pulls the control handle 3-1, which moves the pull rod 3-2. Under the action of the guide groove, the pull rod 3-2 can drive the rotating column 3-3 to rotate. The rotating column 3-3 drives the drive gear 3-4 to rotate, and the drive gear 3-4 drives the rack 3-5 to rotate, thereby moving the slider 1-3 within the slide groove 1-2. With the combined action of the scissor unit 2-1, the movement trajectory of the mounting base 2-5 is made arc-shaped, which makes it easier for the operator to paint the back of the keel and improves the convenience of use.

[0063] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fluorocarbon spraying equipment for curtain wall steel keel, characterized in that, Includes a handheld lever (1), one end of which is fixedly provided with an arc-shaped fixing frame (1-1), the fixing frame (1-1) is provided with an adjustment mechanism (2) for adjusting the position of the spray gun (5), the spray gun (5) is installed on the adjustment mechanism (2), and the middle part of the handheld lever (1) is provided with a control mechanism (3) for driving the adjustment mechanism (2) to move. The hand lever (1) is also provided with a limiting mechanism (4) for limiting the control mechanism (3). The adjustment mechanism (2) includes several sets of scissor units (2-1) arranged on the fixed frame (1-1). Each set of scissor units (2-1) includes two connecting rods (2-2) that are rotatably connected to each other. Each connecting rod (2-2) has a connecting hole at both ends. The connecting hole is used to connect with the connecting hole of the adjacent scissor unit (2-1). One of the connecting rods (2-2) at the end away from the handheld lever (1) is rotatably connected to the fixed frame (1-1) via a connecting rod (2-3); At the other end, a transition rod (2-4) is rotatably connected to each of the two connecting rods (2-2). The two transition rods (2-4) are rotatably connected to each other. A mounting seat (2-5) is rotatably provided at the connection point of the two transition rods (2-4). A spray gun (5) is installed on the mounting seat (2-5). The fixed frame (1-1) has a convex groove (1-2) on its cross-section. Two sliders (1-3) are slidably arranged in the groove (1-2). The two sliders (1-3) are rotatably connected to two scissor units (2-1) near the connecting rod (2-3). The control mechanism (3) includes a control handle (3-1) rotatably mounted on the hand lever (1), and a pull rod (3-2) rotatably mounted on the middle of each side of the control handle (3-1). A cylindrical rotating column (3-3) is rotatably mounted on the fixed frame (1-1). A spiral guide groove is opened on the rotating column (3-3), and the movable end of the pull rod (3-2) slides in the guide groove. A drive gear (3-4) is coaxially fixed on the rotating column (3-3), and an arc-shaped rack (3-5) is fixed on one of the sliders (1-3) near the connecting rod (2-3). The rack (3-5) meshes with the drive gear (3-4).

2. The fluorocarbon spraying equipment for curtain wall steel keel according to claim 1, characterized in that, A ring-shaped limiting ring (3-6) is fixedly installed on both sides of the control handle (3-1).

3. The fluorocarbon spraying equipment for curtain wall steel keel according to claim 2, characterized in that, The limiting mechanism (4) includes two sets of limiting components (4-1) arranged in parallel on the hand handle (1). The two limiting components (4-1) are located on both sides of the control handle (3-1). The limiting ring (3-6) of the control handle (3-1) is detachably connected to at least one of the limiting components (4-1). Each of the limiting components (4-1) includes two protrusions (4-2) fixedly mounted on the hand handle (1). A spring pin (4-3) is slidably mounted on each of the protrusions (4-2). The two spring pins (4-3) are arranged opposite to each other. A guide rod (4-4) is fixedly mounted on the side wall of each spring pin (4-3). The guide rod (4-4) extends into the hand handle (1). An adjusting rod (4-5) is slidably mounted inside the hand handle (1).

4. The fluorocarbon spraying equipment for curtain wall steel keel according to claim 3, characterized in that, The adjusting rod (4-5) is rectangular in shape, and a triangular control plate (4-6) is fixedly installed at each of the two ends of the adjusting rod (4-5). The two side walls of the control plate (4-6) are respectively attached to the two guide rods (4-4) of one of the limiting components (4-1). A long rod (4-7) is fixedly installed at one end of the adjusting rod (4-5) away from the adjusting mechanism (2). A driving rod (4-8) is rotatably installed at one end of the long rod (4-7). A button (4-9) is rotatably installed at the movable end of the driving rod (4-8). One end of the button (4-9) is rotatably connected to the hand handle (1).

5. The fluorocarbon spraying equipment for curtain wall steel keel according to claim 4, characterized in that, A spring (4-10) is provided between the long rod (4-7) and the hand handle (1).

6. The fluorocarbon spraying equipment for curtain wall steel keel according to claim 1, characterized in that, A control unit (6) is fixedly installed at one end of the handheld lever (1).

7. The fluorocarbon spraying equipment for curtain wall steel keel according to claim 6, characterized in that, A rubber grip sleeve is fixedly installed at one end of the hand lever (1) near the control unit (6).