Heating fixing support for guardrail steel pipe spraying
By designing a heating and fixing bracket for spraying guardrail steel pipes, the problems of uneven fixing and insufficient heating during the spraying process are solved, achieving unobstructed fixing and uniform coating adhesion, and adapting to the spraying needs of steel pipes of different diameters.
Patent Information
- Application Number
- CN202423308507.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-31
AI Technical Summary
During the spraying process of guardrail steel pipes, existing technologies make it difficult to achieve unobstructed fixation and effective heating, resulting in uneven coating adhesion and poor paint adhesion at low temperatures.
A heating and fixing bracket for spraying steel pipes for guardrails is adopted, including a fixing shaft, a heating component, an elastic support bar, and a driving component. The steel pipe is fixed by the inner convex support of the elastic support bar, and the heating component is set inside the fixing shaft to achieve uniform heating and fixing of the steel pipe.
It enables unobstructed fixing of guardrail steel pipes during the spraying process, resulting in stronger and more uniform coating adhesion, adaptability to fixing steel pipes of different diameters, and energy saving.
Smart Images
Figure CN223888257U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the processing and production of guardrail pipes, and more particularly to a heating and fixing bracket for spraying guardrail steel pipes. Background Technology
[0002] Guardrails are common safety facilities in daily life, widely used in urban roads, real estate developments, residential areas, gardens, and various enterprises and institutions for decoration, beautification, and protection. With technological advancements, new guardrails possess exceptional weather resistance. Through dozens of special surface treatment processes and high-tech techniques, multiple special coating processes are applied to create a coating that gives the guardrails excellent corrosion resistance, moisture resistance, high-temperature resistance, long-lasting dirt resistance, and self-cleaning properties. The coating on the surface of the guardrail steel pipes is a crucial step in ensuring the guardrail's performance. Long-term outdoor use exposed to sun and rain, or corrosion from corrosive gases in factory environments, will gradually cause the corrosion-resistant coating to fail. Regular recoating is necessary to renovate the coating; therefore, the quality of the surface coating is a significant factor affecting the overall quality of the guardrail. During the spraying process, in order to ensure uniform spraying, the guardrail steel pipes need to be fixed and it is best to ensure that the guardrail surface is completely unobstructed. In addition, the temperature during spraying also has a certain impact on the adhesion of the paint. Some special paints can adhere to the steel pipes more evenly and firmly at higher temperatures. Summary of the Invention
[0003] This utility model proposes a heating and fixing bracket for spraying guardrail steel pipes to prevent external obstruction while fixing the guardrail steel pipes during the spraying process, and to heat the guardrail steel pipes at the same time.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A heating and fixing bracket for spraying steel pipes for guardrails includes a fixed shaft, a heating component, a first end cap, a second end cap, elastic support bars, a driving component, and a controller. The fixed shaft is a slender hollow tubular structure. The heating component is installed inside the fixed shaft. The first end cap and the second end cap are respectively installed at different positions on the fixed shaft. One end of the elastic support bar is fixedly installed on the first end cap, and the other end is fixedly installed on the second end cap. A plurality of elastic support bars are installed in a spindle shape around the fixed shaft with the fixed shaft as the axis. The driving component is connected to the side of the second end cap and drives the second end cap to move along the fixed shaft. The controller is connected to the heating component and controls the switching and heating power of the heating component. The controller is also connected to the driving component and controls the driving component to move the second end cap.
[0006] The guardrail steel pipe to be painted is sleeved on the fixed shaft, and the spindle body composed of the elastic support strip is located inside the guardrail steel pipe; when the second end cap moves in a direction close to the first end cap, the elastic support strip protrudes outward to abut against the inner wall of the guardrail steel pipe and supports and fixes the guardrail steel pipe; when the second end cap moves in a direction away from the first end cap, the elastic support strip retracts inward until the maximum diameter of the spindle body is smaller than the inner diameter of the guardrail steel pipe.
[0007] Preferably, the heating assembly includes a plurality of heating elements, which are evenly arranged inside the fixed shaft.
[0008] Preferably, each heating element is connected to the controller and is individually controlled by the controller.
[0009] Preferably, the heating element is one or more of the following: heating coil, heating wire, resistance wire, ceramic heating element, and heat-conducting oil pipe.
[0010] Preferably, the first end cap and the second end cap are detachably mounted on the fixed shaft.
[0011] Preferably, the elastic support strip is evenly distributed 360° between the first end cap and the second end cap.
[0012] Preferably, the elastic support strip is a support strip with an outward convex arc.
[0013] Preferably, the elastic support bar is installed within the heating range of the heating assembly.
[0014] Preferably, the driving component is a motor or an electric screw.
[0015] Compared with existing technologies, the advantages of this invention are as follows: The fixed shaft and elastic support bars are installed inside the steel pipe to be coated, thus not occupying external space. This allows for unobstructed coating of the steel pipe, resulting in a more uniform and complete coating effect. The driving component moves the second end cap, causing several spindle-shaped elastic support bars to protrude outwards, supporting and fixing the steel pipe from the inside. This provides good support regardless of whether the steel pipe is round or square. Furthermore, the diameter of the spindle-shaped elastic support bars can be adjusted simply by changing the movement distance of the second end cap, adapting to different diameter steel pipes. In addition, a heating component is installed inside the fixed shaft, which can heat the steel pipe to be coated as needed, resulting in stronger and more uniform coating adhesion. Attached Figure Description
[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 A schematic diagram of a heating and fixing bracket for spraying steel pipes for guardrails;
[0018] Figure 2 A schematic diagram showing how a circular guardrail steel pipe is supported by elastic support bars;
[0019] Figure 3 This is a schematic diagram of a square guardrail steel pipe supported by elastic support strips.
[0020] The components include: a fixed shaft 1, a heating assembly 2, a first end cover 3, a second end cover 4, an elastic support bar 5, a driving component 6, a controller 7, and a guardrail steel pipe 8. Detailed Implementation
[0021] To provide a better understanding of the purpose, structure, features, and functions of this utility model, detailed descriptions are provided below with reference to specific embodiments.
[0022] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.
[0023] Please refer to the reference. Figures 1-3 A heating and fixing bracket for spraying steel pipes for guardrails includes a fixing shaft 1, a heating component 2, a first end cap 3, a second end cap 4, an elastic support bar 5, a driving component 6, and a controller 7. The fixing shaft 1 is a slender hollow tubular structure. The heating component 2 is installed inside the fixing shaft 1. The first end cap 3 and the second end cap 4 are respectively installed at different positions on the fixing shaft 1. One end of the elastic support bar 5 is fixedly installed on the first end cap 3, and the other end is fixedly installed on the second end cap 4. Several elastic support bars 5 are installed in a spindle shape around the fixing shaft 1 with the fixing shaft 1 as the axis. The driving component 6 is connected to the side of the second end cap 4 and drives the second end cap 4 to move along the fixing shaft 1. The controller 7 is connected to the heating component 2 and controls the switching and heating power of the heating component 2. The controller 7 is connected to the driving component 6 and controls the driving component 6 to drive the second end cap 4 to move.
[0024] In use, the controller 7 first controls the second end cap 4 to be in its initial position. At this time, the elastic support strip 5 is in its initial state, not compressed or protruding, but attached to the fixed shaft 1. The guardrail steel pipe 8 to be sprayed is placed on the fixed shaft 1 and moved until the spindle body composed of the elastic support strip 5 is inside the guardrail steel pipe 8. At this time, the controller 7 controls the drive component 6 to drive the second end cap 4 to move in the direction close to the first end cap 3, so that the distance between the first end cap 3 and the second end cap 4 decreases. The elastic support strip 5 is compressed and forms an arc-shaped protrusion. Several arc-shaped protrusions form a spindle body until the elastic support strip 5 that makes up the spindle body abuts against the inner wall of the guardrail steel pipe 8, supporting and fixing the guardrail steel pipe 8 from the inside. The smaller the distance between the first end cap 3 and the second end cap 4, the shorter the length of the spindle body and the larger the maximum diameter of the outward protrusion, the larger the diameter of the guardrail steel pipe 8 can be supported. After the guardrail steel pipe 8 is supported and fixed, it is externally sprayed. If a special coating is to be applied, the steel pipe needs to be kept at a high temperature. The heating component 2 is turned on by the controller 7, and the heating temperature of the heating component 2 is controlled. Spraying begins only after the specified temperature is reached, thus obtaining the best spraying effect. After spraying, the guardrail steel pipe 8 needs to be removed. First, the second end cover 4 is moved away from the first end cover 3 by the drive component 6 controlled by the controller 7, so that the distance between the first end cover 3 and the second end cover 4 is increased. This flattens the arc of the elastic support strip 5, thereby losing its internal support and fixing function for the guardrail steel pipe 8. At this time, the guardrail steel pipe 8 can be smoothly removed from the fixed shaft 1.
[0025] In some embodiments, the heating assembly 2 includes a plurality of heating elements, which are evenly arranged inside the fixed shaft 1. The number of heating elements can be adjusted according to the length of the fixed shaft 1, making it suitable for heating guardrail steel pipes 8 of different lengths. The even arrangement of the heating elements, combined with heat transfer through the fixed shaft 1, ensures that the guardrail steel pipes 8 are heated evenly, thereby achieving a better spraying effect.
[0026] In some preferred embodiments, each heating element is connected to and individually controlled by the controller 7. The controller 7 can control one or more heating elements individually as needed. For example, when the guardrail steel pipe 8 is short, it is not necessary to turn on all the heating elements, but only the heating elements located inside the guardrail steel pipe 8 need to be turned on to ensure that the guardrail steel pipe 8 is within the heating range, which can save energy costs.
[0027] In some embodiments, the heating element is one or more of a heating coil, heating wire, resistance wire, ceramic heating element, and heat-conducting oil fitting; otherwise, other commercially available heating elements may also be selected. When selecting a heating element, choosing a smaller, easier-to-install model is beneficial for its quick installation into the smaller diameter fixed shaft 1.
[0028] In some embodiments, the first end cap 3 and the second end cap 4 are detachably mounted on the fixed shaft 1. The first end cap 3 can be fixedly mounted on the fixed shaft 1, and the second end cap 4 can be movably mounted on the fixed shaft 1. Therefore, the first end cap 3 can be fixedly connected by common methods such as threaded connection, snap-fit connection, or latch connection. The second end cap 4 can be directly sleeved on the fixed shaft 1, or a track can be provided on the fixed shaft 1. A slider or groove can be provided at the position where the second end cap 4 connects with the fixed shaft 1, so that the second end cap 4 slides on the fixed shaft 1 while avoiding its own rotation, thereby preventing the elastic support bars 5 from twisting, winding, and deforming.
[0029] In some embodiments, the elastic support strips 5360° are evenly distributed between the first end cap 3 and the second end cap 4, so that the spindle body formed by them can evenly support the guardrail steel pipe 8 from the inside.
[0030] In some embodiments, the elastic support strip 5 is a support strip with an outward convex arc, so that when the distance between the second end cap 4 and the first end cap 3 decreases, the elastic support strip 5 is squeezed and convexes outward to form a spindle body instead of deforming inward.
[0031] In some embodiments, the elastic support bar 5 is installed within the heating range of the heating component 2, further ensuring that the guardrail steel pipe 8 to be sprayed is entirely within the heating range of the heating component 2.
[0032] In some embodiments, the drive element 6 is a motor or an electric screw, or other commercially available drive element 6 capable of driving the second end cover 4 to move along the fixed axis 1. The controller 7 can be a PLC industrial controller 7 or a PC-based controller.
[0033] The heating and fixing bracket for spraying guardrail steel pipes of this utility model is installed inside the guardrail steel pipe to be sprayed. It supports the guardrail steel pipe from the inside and does not occupy external space, so that the guardrail steel pipe is unobstructed during spraying and a more uniform and complete spraying effect is obtained.
[0034] This utility model relates to a heating and fixing bracket for spraying guardrail steel pipes. It expands several elastic support bars into a spindle shape, supporting and fixing the guardrail steel pipe from the inside. Regardless of whether the guardrail steel pipe is round or square, it can be well fixed and supported. Furthermore, the diameter of the spindle-shaped elastic support bars can be adjusted by simply adjusting the movement distance of the second end cap, thereby supporting and fixing steel pipes of different diameters.
[0035] The heating and fixing bracket for spraying guardrail steel pipes of this utility model has a heating component set inside the fixing shaft, which can heat the steel pipe to be sprayed as needed, thereby making the coating adhesion stronger and more uniform.
[0036] This utility model has been described by the above-described embodiments; however, these embodiments are merely examples for implementing this utility model. It must be noted that the disclosed embodiments do not limit the scope of this utility model. Conversely, any modifications and refinements made without departing from the spirit and scope of this utility model are within the scope of patent protection of this utility model.
Claims
1. A heating and fixing bracket for spraying steel pipes for guardrails, characterized in that: The device includes a fixed shaft, a heating assembly, a first end cap, a second end cap, elastic support bars, a driving component, and a controller. The fixed shaft is a slender hollow tubular structure. The heating assembly is installed inside the fixed shaft. The first end cap and the second end cap are respectively installed at different positions on the fixed shaft. One end of the elastic support bar is fixedly installed on the first end cap, and the other end is fixedly installed on the second end cap. Several elastic support bars are installed in a spindle shape around the fixed shaft with the fixed shaft as the axis. The driving component is connected to the side of the second end cap and drives the second end cap to move along the fixed shaft. The controller is connected to the heating assembly and controls the switching and heating power of the heating assembly. The controller is also connected to the driving component and controls the driving component to move the second end cap. The guardrail steel pipe to be painted is sleeved on the fixed shaft, and the spindle body composed of the elastic support strip is located inside the guardrail steel pipe; when the second end cap moves in a direction close to the first end cap, the elastic support strip protrudes outward to abut against the inner wall of the guardrail steel pipe and supports and fixes the guardrail steel pipe; when the second end cap moves in a direction away from the first end cap, the elastic support strip retracts inward until the maximum diameter of the spindle body is smaller than the inner diameter of the guardrail steel pipe.
2. The heating fixing bracket for spraying steel pipes for guardrails as described in claim 1, characterized in that: The heating assembly includes a plurality of heating elements, which are evenly arranged inside the fixed shaft.
3. The heating fixing bracket for spraying steel pipes for guardrails as described in claim 2, characterized in that: Each heating element is connected to the controller and is individually controlled by the controller.
4. The heating and fixing bracket for spraying steel pipes for guardrails as described in claim 3, characterized in that: The heating element is one or more of the following: heating coil, heating wire, resistance wire, ceramic heating element, and heat-conducting oil pipe.
5. The heating and fixing bracket for spraying steel pipes for guardrails as described in claim 1, characterized in that: The first end cap and the second end cap are detachably mounted on the fixed shaft.
6. The heating fixing bracket for spraying steel pipes for guardrails as described in claim 1, characterized in that: The elastic support strips are evenly distributed 360° between the first end cap and the second end cap.
7. The heating fixing bracket for spraying steel pipes for guardrails as described in claim 1, characterized in that: The elastic support strip is a support strip with an outward convex arc.
8. The heating fixing bracket for spraying steel pipes for guardrails as described in claim 1, characterized in that: The elastic support bar is installed within the heating range of the heating assembly.
9. The heating and fixing bracket for spraying steel pipes for guardrails as described in claim 1, characterized in that: The driving component is a motor or an electric screw.