A forklift exhaust pipe anti-corrosion coating spraying auxiliary equipment

By combining the internal support clamping and the drive motor rotation design, the problem of low spraying efficiency of exhaust pipes in the existing technology is solved, and a high-efficiency and uniform coating spraying effect is achieved, which is suitable for anti-corrosion coating spraying of forklift exhaust pipes.

CN224271665UActive Publication Date: 2026-05-26QINGDAO YIDEFENG AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO YIDEFENG AUTO PARTS CO LTD
Filing Date
2025-06-05
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In the prior art, when spraying anti-corrosion coatings on forklift exhaust pipes, the clamping device clamps the outer wall of the exhaust pipe, resulting in poor spraying effect and inability to rotate, leading to low processing efficiency and easy occurrence of layering and missed coating.

Method used

The internal support clamping method is adopted. The combination of clamping columns and clamping pads, along with the springs and the inner wall of the arc-shaped support plate, is used to clamp the exhaust pipe. Combined with the drive motor, the exhaust pipe is rotated for spraying, avoiding obstruction from the outer wall. The height is adjusted by the transmission motor and lead screw to achieve multi-directional spraying.

Benefits of technology

It enables effective positioning and rotational spraying of exhaust pipes of different sizes, avoids spraying dead angles, improves processing efficiency and spraying quality, and reduces the complexity of manual operation and equipment wear.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the technical field of spraying auxiliary equipment, and discloses an auxiliary equipment for spraying anti-corrosion coating on forklift exhaust pipes. It includes a clamping column and a clamping pad. The clamping column has a plurality of first springs and arc-shaped support plates arranged along a curve on its exterior. One end of each first spring is fixedly connected to the inner side of the arc-shaped support plate, and the other end is fixedly connected to a groove on the outside of the clamping column. The clamping column is surrounded by the arc-shaped support plates. A limiting groove is formed in the middle of the clamping pad. According to the inner diameter of the exhaust pipe, the clamping pad is selected, and the limiting groove of the clamping pad is aligned with the clamping column. The worker manually squeezes the arc-shaped support plate, causing it to compress the springs and press them close to the surface of the clamping column, pushing the exhaust pipe onto the outside of the arc-shaped support plate, so that the arc-shaped support plate fits against the inner wall of the exhaust pipe. The worker releases the arc-shaped support plate, and the compressed spring rebounds, pushing the arc-shaped support plate so that its outer surface fits against the inner wall of the exhaust pipe, thus providing internal clamping support for the exhaust pipe.
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Description

Technical Field

[0001] This utility model relates to the field of spraying auxiliary equipment technology, and in particular to an auxiliary equipment for spraying anti-corrosion coating on forklift exhaust pipes. Background Technology

[0002] Forklift exhaust pipes are exposed to high temperatures and highly corrosive gases (such as sulfur oxides and water vapor) for extended periods, making them susceptible to oxidation, corrosion, and thermal fatigue damage. Applying an anti-corrosion coating is crucial for extending their lifespan. However, due to the complex structure of the exhaust pipe (such as curved pipes and inaccessible inner walls) and the need for the coating to withstand high temperatures (typically above 300°C), specialized auxiliary equipment is required to improve the efficiency and quality of the spraying process.

[0003] Existing exhaust pipes are held and positioned by clamping devices to assist spraying equipment in applying anti-corrosion coatings. However, the clamping devices hold the outer wall of the exhaust pipe, causing part of the outer wall of the exhaust pipe to be covered by the clamping devices, which affects the spraying effect. In addition, the clamped and positioned exhaust pipe cannot be rotated, requiring workers to hold the spraying equipment to spray the exhaust pipe from multiple directions. This method is time-consuming and labor-intensive, and is also prone to layering and missed coating, reducing the coating processing efficiency of the exhaust pipe. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an auxiliary device for spraying anti-corrosion coatings on forklift exhaust pipes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An auxiliary device for spraying anti-corrosion coating on a forklift exhaust pipe includes a clamping column and a clamping pad. The clamping column has a plurality of first springs and arc-shaped support plates arranged along a curve on its exterior. One end of each of the first springs is fixedly connected to the inner side of the arc-shaped support plate, and the other end of each spring is fixedly connected to a clamping groove on the exterior of the clamping column. The clamping column is surrounded by the plurality of arc-shaped support plates. A limiting groove is formed in the middle of the clamping pad. The clamping pad is slidably connected to the outside of the clamping column and the clamping pad through the limiting groove. The inner wall of the clamping pad is attached to the groove wall of the limiting groove.

[0007] As a further embodiment of this utility model, four sets of positioning holes are provided through the outside of the clamping column, and the positioning holes are located between the arc-shaped support plates. The clamping column on one side of the clamping pad is fixedly connected to the clamping column by bolts.

[0008] As a further embodiment of this utility model, the bolt passes through the clamping post of the clamping pad and is threaded into the positioning hole. A slide is provided on one side of the clamping pad, and a drive motor is fixedly connected to one side of the slide.

[0009] As a further embodiment of this utility model, one end of the clamping column shaft passes through the slide and is fixedly connected to the output end of the drive motor. Several second springs are fixedly connected to the bottom of the slide, and a base is provided at the bottom of the slide. The bottom ends of the second springs are fixedly connected to the top of the base.

[0010] As a further embodiment of this utility model, a drive motor is fixedly connected inside the base, and a lead screw and a slide rod are respectively provided on one side of the second spring. The bottom end of the lead screw passes through the base and is fixedly connected to the output end of the drive motor, and the slide rod is slidably connected to the lead screw.

[0011] As a further embodiment of this utility model, a positioning plate is fixedly connected to the top of the slide rod, the top of the lead screw is rotatably connected to the bottom of the positioning plate, and the bottom end of the slide rod passes through the slide frame and is fixedly connected to the top of the machine base.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. Select the clamping pad according to the inner diameter of the exhaust pipe. Align the limiting groove of the clamping pad with the clamping column. The worker manually squeezes the arc-shaped support plate, causing the arc-shaped support plate to compress the spring close to the surface of the clamping column, pushing the exhaust pipe onto the outside of the arc-shaped support plate, so that the arc-shaped support plate fits against the inner wall of the exhaust pipe. The worker releases the arc-shaped support plate, and the spring rebounds after compression, pushing the arc-shaped support plate so that the outer surface of the arc-shaped support plate fits against the inner wall of the exhaust pipe, thus internally clamping the exhaust pipe. Then move the two sets of clamping pads to both ends of the exhaust pipe and fix them to the clamping column with bolts to clamp and position the exhaust pipe, assisting the spraying equipment in coating processing. This setting can position exhaust pipes of different sizes through internal clamping, while avoiding the clamping device from obstructing the outer wall of the exhaust pipe and affecting the spraying efficiency.

[0014] 2. After clamping and fixing, start the drive motor. The output end of the drive motor drives the clamping column to rotate, so that the exhaust pipe fixing position follows the rotation of the clamping column. This facilitates the rotation and spraying of the exhaust pipe and avoids dead corners when the exhaust pipe is fixed and sprayed, which would result in poor spraying effect and affect processing efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an auxiliary device for spraying anti-corrosion coating on a forklift exhaust pipe, as proposed in this utility model.

[0016] Figure 2 This is a schematic diagram of the disassembled clamping column structure of an auxiliary device for spraying anti-corrosion coating on a forklift exhaust pipe, as proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the lead screw structure of an auxiliary device for spraying anti-corrosion coating on a forklift exhaust pipe, as proposed in this utility model.

[0018] In the diagram: 1. Clamping column; 101. First spring; 102. Arc-shaped support plate; 103. Positioning hole; 2. Clamping pad; 201. Limiting groove; 3. Slide frame; 301. Drive motor; 302. Second spring; 4. Lead screw; 5. Slide rod; 501. Positioning plate; 6. Transmission motor; 7. Machine base. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Reference Figures 1-3 A forklift exhaust pipe anti-corrosion coating spraying auxiliary device includes a clamping column 1 and a clamping pad 2. The clamping column 1 has a plurality of first springs 101 and arc-shaped support plates 102 arranged along a curve on its outside. One end of the plurality of first springs 101 is fixedly connected to the inner side of the arc-shaped support plate 102, and the other end of the spring is fixedly connected to the clamping groove on the outside of the clamping column 1. The clamping column 1 is surrounded by the plurality of arc-shaped support plates 102. A limited sliding groove is opened in the middle of the clamping pad 2. The clamping pad 2 is slidably connected to the clamping column 1 and the outside of the clamping pad 2 through the limiting sliding groove 201. The inner wall of the clamping pad 2 is attached to the groove wall of the limiting sliding groove 201.

[0023] In use, select the clamping pad 2 according to the inner diameter of the exhaust pipe, align the limiting groove 201 of the clamping pad 2 with the clamping column 1, and manually squeeze the arc-shaped support plate 102. This forces the arc-shaped support plate 102 to compress the spring and bring it close to the surface of the clamping column 1, pushing the exhaust pipe onto the outside of the arc-shaped support plate 102. This allows the arc-shaped support plate 102 to fit against the inner wall of the exhaust pipe. When the worker releases the arc-shaped support plate 102, the spring compresses and rebounds, pushing the arc-shaped support plate 102 so that its outer surface fits against the inner wall of the exhaust pipe, thus internally clamping the exhaust pipe. Then, move the two sets of clamping pads 2 to both ends of the exhaust pipe and fix them to the clamping column 1 with bolts to clamp and position the exhaust pipe, assisting the spraying equipment in coating processing. This setup, through internal clamping, can position exhaust pipes of different sizes while avoiding obstruction of the outer wall of the exhaust pipe by the clamping device, thus preventing it from affecting the spraying efficiency.

[0024] In this embodiment, four sets of positioning holes 103 are provided through the outside of the clamping column 1. The positioning holes 103 are located between several arc-shaped support plates 102. The clamping column on one side of the clamping pad 2 is fixedly connected to the clamping column 1 by bolts.

[0025] In use, a set of clamping pads 2 are pushed to the tail end of the clamping column 1 away from the arc-shaped support plate 102 without limiting the arc-shaped support plate 102. The exhaust pipe is sleeved outside the arc-shaped support plate 102 for limiting. The limiting groove 201 of the clamping pad 2 at the tail end of the clamping column 1 is pushed through the clamping column 1 and the arc-shaped support plate 102 and moved to the side of the exhaust pipe.

[0026] In this embodiment, the bolt passes through the clamping column of the clamping pad 2 and is threaded into the positioning hole 103. A slide 3 is provided on one side of the clamping pad 2, and a drive motor 301 is fixedly connected to one side of the slide 3.

[0027] When in use, move another set of clamping plates to the other side of the exhaust pipe, and use bolts to fix the two sets of clamping plates to the clamping column 1 to clamp and fix both ends of the exhaust pipe, so as to avoid the exhaust pipe from shaking back and forth when rotating and spraying, which would affect the spraying effect.

[0028] In this embodiment, one end of the clamping column 1 passes through the slide 3 and is fixedly connected to the output end of the drive motor 301. Several second springs 302 are fixedly connected to the bottom of the slide 3. A base 7 is provided at the bottom of the slide 3, and the bottom ends of the second springs 302 are fixedly connected to the top of the base 7.

[0029] When in use, after clamping and fixing, start the drive motor 301. The output end of the drive motor 301 drives the clamping column 1 to rotate, so that the exhaust pipe fixing position follows the rotation of the clamping column 1, which facilitates the rotation of the exhaust pipe for spraying and avoids dead corners when the exhaust pipe is fixed for spraying, resulting in poor spraying effect and affecting processing efficiency.

[0030] In this embodiment, a drive motor 6 is fixedly connected inside the base 7. A lead screw 4 and a slide rod 5 are respectively provided on one side of the second spring 302. The bottom end of the lead screw 4 passes through the base 7 and is fixedly connected to the output end of the drive motor 6. The slide 3 is slidably connected to the lead screw 4.

[0031] When the carriage 3 is raised and lowered by the lead screw 4, especially during start-up, stop, or sudden load changes, impacts or vibrations may occur. The second spring 302, as an elastic element, can absorb and buffer these instantaneous impact forces, reduce vibrations and noise caused by rigid connections, protect transmission components such as the lead screw 4, carriage 5, and drive motor 6 from excessive stress impacts, and extend the equipment life. A damping pad is installed on the top of the base 7 to absorb the oscillations of the second spring 302 rebounding.

[0032] In this embodiment, a positioning plate 501 is fixedly connected to the top of the slide rod 5, the top of the lead screw 4 is rotatably connected to the bottom of the positioning plate 501, and the bottom of the slide rod 5 passes through the slide frame 3 and is fixedly connected to the top of the machine base 7.

[0033] In use, after the forklift exhaust pipe is installed on the clamping column 1, the drive motor 6 is started. The output end of the drive motor 6 drives the lead screw 4 to rotate, causing the slide 3 to move the clamping column 1 and the exhaust pipe up and down, so that the exhaust pipe is closer to / away from the spray head of the spraying equipment. The auxiliary clamping device has a height adjustment function through the lead screw 4, which makes it easy to adjust the distance between the clamping device and the spraying equipment according to the exhaust pipe of different sizes.

[0034] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: The clamping pad 2 is selected according to the inner diameter of the exhaust pipe. The limiting groove 201 of the clamping pad 2 is aligned with the clamping column 1. The worker manually squeezes the arc-shaped support plate 102, causing the arc-shaped support plate 102 to be compressed by the spring and close to the surface of the clamping column 1, pushing the exhaust pipe onto the outside of the arc-shaped support plate 102, so that the arc-shaped support plate 102 fits against the inner wall of the exhaust pipe. The worker releases the arc-shaped support plate 102, and the spring, after compression, rebounds and pushes the arc-shaped support plate 102, so that the outer surface of the arc-shaped support plate 102 fits against the inner wall of the exhaust pipe. The exhaust pipe is internally supported and clamped. Then, two sets of clamping pads 2 are moved to both ends of the exhaust pipe and fixed to the clamping column 1 with bolts to clamp and position the exhaust pipe, assisting the spraying equipment in coating processing. This setting can position exhaust pipes of different sizes through internal support clamping. After clamping and fixing, the drive motor 301 is started. The output end of the drive motor 301 drives the clamping column 1 to rotate, so that the exhaust pipe is fixed and rotates with the clamping column 1, which facilitates the rotation of the exhaust pipe for spraying and avoids dead corners when the exhaust pipe is fixed and sprayed, resulting in poor spraying effect and affecting processing efficiency.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A forklift exhaust stack anticorrosion coating spraying auxiliary device comprising a clamping column (1) and a clamping pad (2), characterized in that, The clamping column (1) is surrounded by a plurality of first springs (101) and arc-shaped support plates (102) arranged along a curve. One end of each of the first springs (101) is fixedly connected to the inner side of the arc-shaped support plate (102), and the other end of each spring is fixedly connected to the clamping groove outside the clamping column (1). The clamping column (1) is surrounded by a plurality of arc-shaped support plates (102). A limited sliding groove is opened in the middle of the clamping pad (2). The clamping pad (2) is slidably connected to the outside of the clamping column (1) and the clamping pad (2) through a limiting sliding groove (201). The inner wall of the clamping pad (2) is attached to the groove wall of the limiting sliding groove (201).

2. The fork truck exhaust stack anti-corrosion coating spray assist apparatus of claim 1, wherein, The clamping column (1) has four sets of positioning holes (103) through the outside. Several of the positioning holes (103) are located between several of the arc-shaped support plates (102). The clamping column on one side of the clamping pad (2) is fixedly connected to the clamping column (1) through bolts.

3. The fork truck exhaust stack anti-corrosion coating spray assist apparatus of claim 2, wherein, The bolt passes through the clamping post of the clamping pad (2) and is threaded into the positioning hole (103). A slide (3) is provided on one side of the clamping pad (2), and a drive motor (301) is fixedly connected to one side of the slide (3).

4. The auxiliary equipment for spraying anti-corrosion coating on forklift exhaust pipes according to claim 3, characterized in that, One end of the clamping column (1) passes through the slide (3) and is fixedly connected to the output end of the drive motor (301). Several second springs (302) are fixedly connected to the bottom of the slide (3). A base (7) is provided at the bottom of the slide (3). The bottom end of the second spring (302) is fixedly connected to the top of the base (7).

5. The auxiliary equipment for spraying anti-corrosion coating on forklift exhaust pipes according to claim 4, characterized in that, The base (7) is fixedly connected to a drive motor (6). The second spring (302) is provided with a lead screw (4) and a slide rod (5) on one side. The bottom end of the lead screw (4) passes through the base (7) and is fixedly connected to the output end of the drive motor (6). The slide (3) is slidably connected to the lead screw (4).

6. The auxiliary equipment for spraying anti-corrosion coating on forklift exhaust pipes according to claim 5, characterized in that, The top end of the slide rod (5) is fixedly connected to a positioning plate (501), the top end of the lead screw (4) is rotatably connected to the bottom of the positioning plate (501), and the bottom end of the slide rod (5) passes through the slide frame (3) and is fixedly connected to the top of the machine base (7).