A spraying equipment for processing guardrail posts

By designing the drive and spraying components, the problem of unstable clamping of guardrail posts during the spraying process was solved, achieving stable rotation and uniform spraying of the posts, thus improving the safety and environmental friendliness of the spraying equipment.

CN224423248UActive Publication Date: 2026-06-30HEBEI LUXIN TRANSPORTATION FACILITIES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI LUXIN TRANSPORTATION FACILITIES CO LTD
Filing Date
2025-07-12
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing guardrail post spraying equipment struggles to provide stable clamping force during fixing and flipping, causing posts to easily detach, affecting spraying results and safety, and also posing environmental pollution problems.

Method used

The installation drive assembly, including a polygonal central shaft and inner support frame, and a design that combines support springs and connecting rods, provides stable clamping force. The spraying assembly enables uniform spraying and exhaust gas filtration, ensuring the stability and safety of the column during the flipping process.

Benefits of technology

This solves the problem of the column falling off during the flipping process, improves the stability and safety of spraying, reduces environmental pollution, and enhances the versatility of the equipment and the quality of spraying.

✦ Generated by Eureka AI based on patent content.

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Abstract

This disclosure relates to the technical field of guardrail post processing. One embodiment of this disclosure provides a spraying device for guardrail post processing, comprising: a base plate and a protective cover, the protective cover being disposed on the base plate, a mounting drive assembly being disposed on the base plate, a support frame being disposed on the base plate, and a spraying assembly being disposed on the protective cover. The mounting drive assembly includes a bottom cover, which is fixed to the surface of the base plate. A central shaft, driven by electricity, is disposed at the top of the bottom cover. The central shaft has a polygonal cross-section, and several inner supports are disposed around the side surface of the central shaft. This technical solution solves the technical problem in the prior art where traditional equipment often struggles to provide stable clamping force when fixing and flipping posts, leading to the posts easily detaching during the flipping process.
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Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of guardrail post processing, specifically to a spraying device for guardrail post processing. Background Technology

[0002] In the construction of traffic facilities such as highways and bridges, guardrail posts are crucial components for ensuring traffic safety. Spray coating processes can create a corrosion-resistant, rust-proof, and aesthetically pleasing coating on the surface of guardrail posts, effectively extending their service life and enhancing their protective performance.

[0003] However, existing guardrail post spraying equipment has many problems. Guardrail posts have a cylindrical structure and need to be rotated during the spraying process to achieve even coating from all directions. However, traditional equipment often struggles to provide stable clamping force when fixing and rotating the posts, causing them to easily detach during the rotation process. Once detached, this not only interrupts the spraying operation and affects production efficiency but may also damage the equipment or even cause safety accidents.

[0004] Furthermore, due to unstable clamping, the posts are difficult to maintain a stable posture during spraying, resulting in uneven paint adhesion, uneven spraying, and missed areas, severely affecting the spraying effect and protective quality. Simultaneously, the unstable movement of the posts, whether detached or flipped, causes significant paint splatter, resulting in serious environmental pollution, increased cleanup costs, and failure to meet environmental protection requirements. With the continuous expansion of transportation construction, the requirements for the quality and efficiency of guardrail post spraying are increasing, necessitating the development of a spraying equipment suitable for cylindrical guardrail posts to solve the problems of easy detachment during spraying and flipping, poor spraying effect, and severe pollution. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a spraying equipment for processing guardrail posts, which solves the technical problem that traditional equipment in the prior art often cannot provide a stable clamping force when fixing and flipping posts, which leads to the posts easily falling off during the flipping process.

[0006] According to one aspect, at least one embodiment of this disclosure provides a spraying device for processing guardrail posts, comprising:

[0007] A base plate and a protective cover, wherein the protective cover is mounted on the base plate;

[0008] The mounting driver component is mounted on the base plate;

[0009] The support frame and the spraying assembly are mounted on the base plate and the spraying assembly is mounted on the protective cover.

[0010] The mounting drive assembly includes a base cover, which is fixed to the surface of the base plate. A central shaft that is electrically driven to rotate is provided on the top of the base cover. The central shaft has a polygonal cross-section, and several inner supports are provided around the side surface of the central shaft.

[0011] As a further technical solution, a number of pairs of long grooves are formed around the central axis side surface, and an inner rod is provided in each of the long grooves. A slider is fitted onto the inner rod, and a connecting block is provided on the inner side surface of the inner support frame.

[0012] As a further technical solution, the connecting block and the pair of sliders are rotatably connected by a pair of connecting rods via a pin, and a support spring is fitted on the inner rod.

[0013] As a further technical solution, the spraying assembly includes a conveying pipe, which is fixed to the outer wall of the protective cover. One end of the conveying pipe is inserted inward at the top of the protective cover, and a first cylinder is vertically and downwardly arranged at the top of the protective cover.

[0014] As a further technical solution, a nozzle is provided at one end of the conveying pipe, the nozzle is fixed at the output end of the first cylinder, an exhaust port is provided at the top of the protective cover, a filter is inserted into the exhaust port, a filter element is filled in the filter, a second cylinder is installed on the stand, and the output end of the second cylinder is connected to the protective cover.

[0015] As a further technical solution, the outer surface of the inner support frame is an arc-shaped structural surface, and the upper end of the inner support frame is bent inward to transition.

[0016] As a further technical solution, a vent is provided at the bottom of the base plate, and the vent is connected to the inside of the base cover.

[0017] As a further technical solution, a pair of positioning rods are provided on the upper end face of the support frame, and a pair of positioning holes are provided at the bottom of the connection part between the protective cover and the output end of the second cylinder.

[0018] The beneficial effects of the embodiments disclosed herein are as follows:

[0019] In this disclosure, the installation drive assembly, through the cooperation of an inner support frame, support springs, and connecting rods, solves the problem of column detachment caused by unstable clamping in traditional equipment. The inner support frame expands outwards under the action of the support springs, its curved surface closely fitting the inner wall of the column to provide uniform clamping force. The polygonal central axis ensures stable power transmission during rotation, preventing column slippage. This design keeps the column stable during the flipping spraying process, preventing detachment, ensuring operational safety and continuity, while also adapting to different column specifications, improving equipment versatility, and reducing the time cost of changing clamps. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0021] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;

[0022] Figure 2 This is an isometric drawing of the present disclosure;

[0023] Figure 3 This is an isometric sectional view of the present disclosure;

[0024] Figure 4 Appendix to this disclosure Figure 3 Enlarged view of part A in the middle;

[0025] In the diagram: 1. Base plate; 2. Protective cover; 3. Stand; 4. Mounting drive assembly; 4-1. Bottom cover; 4-2. Central shaft; 4-3. Inner support frame; 4-4. Long groove; 4-5. Inner rod; 4-6. Slider; 4-7. Connecting block; 4-8. Connecting rod; 4-9. Support spring; 5. Spraying assembly; 5-1. Conveying pipe; 5-2. First cylinder; 5-3. Nozzle; 5-4. Exhaust port; 5-5. Filter; 5-6. Filter element; 5-7. Second cylinder; 6. Vent hole; 7. Positioning rod; 8. Positioning hole. Detailed Implementation

[0026] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0027] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0028] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0029] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 disclosure.

[0031] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] like Figures 1-4 As shown, it illustrates a spraying device for processing guardrail posts according to an embodiment of this disclosure, comprising:

[0033] A base plate 1 and a protective cover 2, wherein the protective cover 2 is disposed on the base plate 1;

[0034] The mounting drive component 4 is mounted on the base plate 1;

[0035] The support frame 3 and the spraying assembly 5 are provided. The support frame 3 is mounted on the base plate 1, and the spraying assembly 5 is mounted on the protective cover 2.

[0036] The installation drive assembly 4 includes a base cover 4-1, which is fixed to the surface of the base plate 1. A central shaft 4-2, which is driven by electricity to rotate, is provided on the top of the base cover 4-1. The central shaft 4-2 has a polygonal cross-section. Several inner supports 4-3 are provided around the side surface of the central shaft 4-2. Several pairs of long grooves 4-4 are opened around the side surface of the central shaft 4-2. An inner rod 4-5 is provided in each of the long grooves 4-4. A slider 4-6 is fitted onto the inner rod 4-5. A connecting block 4-7 is provided on the inner surface of the inner support 4-3. A pair of connecting rods 4-8 are rotatably connected between the connecting block 4-7 and a pair of sliders 4-6 through a pin. A support spring 4-9 is fitted onto the inner rod 4-5.

[0037] In some examples, in order to achieve the effect of stable support column rotation in conjunction with spraying, an installation drive assembly 4 is designed. The assembly includes a base cover 4-1 that is firmly fixed to the surface of the base plate 1 by bolts or welding. The central shaft 4-2 mounted on the top of the base cover 4-1 is driven to rotate by an electric drive device (such as a motor) and has a polygonal cross-section design.

[0038] Several inner supports 4-3, evenly distributed around the side surface of the central shaft 4-2, support the guardrail posts. Several pairs of elongated slots 4-4 on the central shaft 4-2 provide installation and sliding space for the inner rods 4-5. The inner rods 4-5 pass through the elongated slots 4-4, and sliders 4-6 fitted on their surfaces can slide freely along the inner rods 4-5. Connecting blocks 4-7 on the inner surface of the inner supports 4-3 are rotatably connected to a pair of sliders 4-6 via pins, forming a movable linkage structure. Support springs 4-9 fitted on the inner rods 4-5 abut against the central shaft 4-2 at one end and against the sliders 4-6 at the other, providing elastic support to the sliders 4-6.

[0039] When it is necessary to install the post, the post is placed on the outside of the central shaft 4-2 and the inner support frame 4-3. The drive device of the central shaft 4-2 is started, and the rotation of the central shaft 4-2 drives the inner support frame 4-3 to rotate synchronously, realizing stable support and flexible rotation control of the post, and providing a reliable guarantee for the efficient spraying operation of the guardrail post.

[0040] like Figures 1-4As shown in the figure, the spraying assembly 5 in this embodiment includes a conveying pipe 5-1, which is fixed to the outer wall of the protective cover 2. One end of the conveying pipe 5-1 is inserted into the top of the protective cover 2. A first cylinder 5-2 is vertically arranged downward on the top of the protective cover 2. A nozzle 5-3 is arranged at one end of the conveying pipe 5-1. The nozzle 5-3 is fixed to the output end of the first cylinder 5-2. An exhaust port 5-4 is opened on the top of the protective cover 2. A filter 5-5 is inserted into the exhaust port 5-4. The filter 5-5 is filled with a filter element 5-6. A second cylinder 5-7 is installed on the support frame 3. The output end of the second cylinder 5-7 is connected to the protective cover 2.

[0041] In some examples, to achieve both spraying and anti-pollution effects, a spraying assembly 5 is designed. This assembly includes a delivery pipe 5-1 mounted on the outer wall of the protective cover 2 via a fastener, with one end extending inward through the top of the protective cover 2 to provide a channel for paint delivery. A first cylinder 5-2, vertically mounted on the top of the protective cover 2, has its output end connected to a nozzle 5-3, which can drive the nozzle 5-3 to move up and down vertically.

[0042] During spraying, paint is delivered to nozzle 5-3 via conveying pipe 5-1. The first cylinder 5-2 moves nozzle 5-3 up and down according to a pre-programmed sequence, allowing spraying at different heights on the column to ensure even paint coverage. An exhaust port 5-4 at the top of the protective cover 2 is used to expel paint mist and other waste gases generated during spraying. The filter 5-5 inserted inside exhaust port 5-4, with its internal filter element 5-6, effectively intercepts particulate impurities in the paint mist, purifying the exhaust gas, reducing environmental pollution, and protecting the health of operators.

[0043] A second cylinder 5-7 is installed on the support frame 3, with its cylinder body fixed to the support frame 3. Its output end is connected to the protective cover 2, which can control the raising and lowering of the protective cover 2. Before spraying, the second cylinder 5-7 raises the protective cover 2 to facilitate the installation of the post; during spraying, the protective cover 2 lowers to seal the spraying area and prevent paint mist from spreading; after spraying, the protective cover 2 rises again to facilitate the removal of the post. Through the coordinated work of its components, the spraying assembly 5 achieves uniform spraying of the guardrail posts and ensures the cleanliness of the spraying environment and the safety of the operators through its protective and filtering functions.

[0044] For example, such as Figure 3 As shown, the outer surface of the inner support frame 4-3 is an arc-shaped structure, and the upper end of the inner support frame 4-3 is bent inward.

[0045] In some examples, the arc-shaped structure on the outer surface of the inner support 4-3 fits snugly against the inner wall of the column, increasing the contact area and improving support stability. The upper end bends inward to prevent the inner support 4-3 from scratching the column during installation, while also guiding the column to fit smoothly, reducing assembly resistance, adapting to the support requirements of columns of different specifications, and enhancing the practicality of the installation drive assembly 4.

[0046] For example, such as Figure 2 As shown, the bottom of the base plate 1 is provided with a vent hole 6, which is connected to the interior of the bottom cover 4-1.

[0047] In some examples, the vent 6 at the bottom of the base plate 1 communicates with the interior of the base cover 4-1, forming an air circulation channel. The heat generated by the electric drive components inside the base cover 4-1 can be dissipated through the vent 6, preventing heat accumulation from affecting the operation of the components. At the same time, it keeps the interior of the base cover 4-1 dry, preventing moisture from corroding the components and extending the service life of the drive assembly 4.

[0048] For example, such as Figure 2 As shown, a pair of positioning rods 7 are provided on the upper end face of the support frame 3, and a pair of positioning holes 8 are provided at the bottom of the connection part between the protective cover 2 and the output end of the second cylinder 5-7.

[0049] In some examples, the positioning rod 7 on the upper surface of the support 3 corresponds to the positioning hole 8 at the bottom of the protective cover 2. When the second cylinder 5-7 drives the protective cover 2 to rise or fall, the positioning rod 7 is inserted into the positioning hole 8. This design provides guidance for the protective cover 2, preventing it from shifting during rising and falling, ensuring the precise relative position of the nozzle 5-3 and the column, guaranteeing uniform spraying, and improving the operational stability of the spraying assembly 5.

[0050] In actual use: Fix the base plate 1. The second cylinder 5-7 on the support frame 3 drives the protective cover 2 to rise, placing the guardrail post outside the inner support frame 4-3 of the central shaft 4-2. The support spring 4-9 pushes the slider 4-6 to move along the inner rod 4-5, and the connecting rod 4-8 drives the inner support frame 4-3 to open outwards, with the arc-shaped surface fitting firmly against the inner wall of the post. Lower the protective cover 2 to seal the spraying area, and insert the positioning rod 7 into the positioning hole 8 to ensure accurate positioning. Start the installation drive assembly 4; the electric drive of the central shaft 4-2 rotates the post. The delivery pipe 5-1 delivers paint to the nozzle 5-3, and the first cylinder 5-2 drives the nozzle 5-3 to move up and down, spraying the rotating post from all directions. The exhaust gas generated during spraying is filtered by the filter 5-5 of the exhaust port 5-4 and discharged. The vent 6 dissipates heat from the base cover 4-1. After completion, raise the protective cover 2, retract the inner support frame 4-3, remove the post, and the spraying operation is complete.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A spraying equipment for processing guardrail posts, characterized in that, include: A base plate (1) and a protective cover (2), wherein the protective cover (2) is disposed on the base plate (1); Mounting drive assembly (4), which is mounted on the base plate (1); The support frame (3) and the spraying assembly (5) are provided on the base plate (1) and the spraying assembly (5) is provided on the protective cover (2); The mounting drive assembly (4) includes a base cover (4-1), which is fixed to the surface of the base plate (1). The top of the base cover (4-1) is provided with a central shaft (4-2) that is driven to rotate by electricity. The cross-section of the central shaft (4-2) is polygonal, and a number of inner supports (4-3) are provided around the side surface of the central shaft (4-2).

2. The spraying equipment for processing guardrail posts according to claim 1, characterized in that, The central shaft (4-2) has several pairs of long grooves (4-4) around its side surface. Each long groove (4-4) is provided with an inner rod (4-5). A slider (4-6) is fitted onto the inner rod (4-5). A connecting block (4-7) is provided on the inner surface of the inner support frame (4-3).

3. The spraying equipment for processing guardrail posts according to claim 2, characterized in that, The connecting block (4-7) and the pair of sliders (4-6) are rotatably connected by a pair of connecting rods (4-8) via a pin, and a support spring (4-9) is fitted on the inner rod (4-5).

4. The spraying equipment for processing guardrail posts according to claim 1, characterized in that, The spraying assembly (5) includes a conveying pipe (5-1), which is fixed to the outer wall of the protective cover (2). One end of the conveying pipe (5-1) is inserted into the top of the protective cover (2). A first cylinder (5-2) is vertically downwardly arranged on the top of the protective cover (2).

5. The spraying equipment for processing guardrail posts according to claim 4, characterized in that, A nozzle (5-3) is provided at one end of the conveying pipe (5-1). The nozzle (5-3) is fixed at the output end of the first cylinder (5-2). An exhaust port (5-4) is provided on the top of the protective cover (2). A filter (5-5) is inserted into the exhaust port (5-4). A filter element (5-6) is filled in the filter (5-5). A second cylinder (5-7) is installed on the stand (3). The output end of the second cylinder (5-7) is connected to the protective cover (2).

6. The spraying equipment for processing guardrail posts according to claim 1, characterized in that, The outer surface of the inner support frame (4-3) is an arc-shaped structure, and the upper end of the inner support frame (4-3) is bent inward to transition.

7. The spraying equipment for processing guardrail posts according to claim 1, characterized in that, The bottom of the base plate (1) is provided with a ventilation hole (6), which is connected to the inside of the bottom cover (4-1).

8. The spraying equipment for processing guardrail posts according to claim 5, characterized in that, The upper end face of the stand (3) is provided with a pair of positioning rods (7), and the bottom of the protective cover (2) and the output end of the second cylinder (5-7) is provided with a pair of positioning holes (8).