A surface renovation and polishing device and treatment method for corrugated beam steel guardrails

Abstract

The present invention relates to the technical field of guardrail surface renovation and polishing, and specifically proposes a device and a processing method for renovation and polishing of the surface of a corrugated beam steel guardrail, including: a guiding mechanism, a sealing cover, a polishing mechanism and a dust suction mechanism. The present invention realizes the functions of sealing the polishing part of the guardrail and automatic mechanical polishing through the cooperation of the sealing cover, two end sealing plates and the polishing mechanism and the dust suction mechanism, thereby improving the polishing efficiency of the guardrail, while avoiding the problems of large consumption of consumables and high polishing cost when polishing the guardrail by the traditional sandblasting method, and the polishing head in the polishing mechanism is polished in contact with the guardrail through elastic adaptive force, avoiding the problem of the polishing head getting stuck when passing through the joint of two guardrails, and during the polishing process, the upper and lower guide mechanisms cooperate to guide the movement of the polishing mechanism, so that the polishing mechanism is always polished in contact with the guardrail, which greatly improves the polishing quality of the guardrail.

Description

Technical Field

[0001] The present invention relates to the technical field of surface renovation and polishing of guardrails, and specifically provides a device and a processing method for surface renovation and polishing of corrugated beam steel guardrails. Background Art

[0002] The corrugated beam steel guardrail is exposed to the outdoors for a long time and is affected by environmental factors such as ultraviolet rays, rainwater, and salt spray. Defects such as rust, oxidation, or coating peeling are likely to appear on the surface. Renovation and polishing can remove rust and the aging layer, and re-form a protective barrier to ensure its impact resistance, structural stability, and aesthetics.

[0003] Currently, when polishing the surface of the corrugated beam steel guardrail, either a hand-held polishing machine is used to polish the guardrail, or a sandblasting method is used to polish the guardrail. The former has a high labor intensity and low efficiency, and the latter has a large consumption of sandblasting consumables, high costs, and is prone to dust pollution.

[0004] Therefore, there is an urgent need for a device for surface renovation and polishing of corrugated beam steel guardrails to improve the polishing efficiency and quality of the guardrails, reduce the polishing cost of the guardrails, and reduce dust pollution during the polishing process. Summary of the Invention

[0005] In view of the above problems, embodiments of the present invention provide a device and a processing method for surface renovation and polishing of corrugated beam steel guardrails to solve the technical problems in the related art.

[0006] To achieve the above object, embodiments of the present invention provide the following technical solutions: A device for surface renovation and polishing of corrugated beam steel guardrails includes: a mobile vehicle, four fixed brackets, two guiding mechanisms, a sealing cover, a polishing mechanism, a dust suction mechanism, and a driving source installed on the mobile vehicle for driving the sealing cover to move.

[0007] The four fixed brackets are arranged in a rectangle and fixedly connected to the mobile vehicle. End sealing plates are slidably arranged on the two horizontally corresponding fixed brackets, and the upper and lower end sealing plates are symmetrically arranged; the guiding mechanisms are installed on the sides of the end sealing plates away from the mobile vehicle, and the two guiding mechanisms are respectively used to clamp the upper and lower sides of the guardrail; the sealing cover is slidably installed on the four fixed brackets, and a pushing and locking mechanism is installed on the sealing cover to pull the two end sealing plates and the guiding mechanisms to move towards the mobile vehicle when the sealing cover moves towards the end sealing plates. The polishing mechanism is installed on the sealing cover, and the dust suction mechanism is jointly installed on the sealing cover and the two end sealing plates.

[0008] In one possible implementation, the guiding mechanism includes three mounting seats installed in the middle of one side of the end sealing plate away from the sealing cover, two of which are located in the sealing cavity, and the other is located outside the sealing cavity. A resistance roller is installed on the mounting seat located outside the sealing cavity, and clamping seats are installed on the three mounting seats through spring rods. The clamping seats are arranged in arc shape on both sides along the length direction of the end sealing plate to facilitate the guardrail end to enter between the clamping seats on both sides. Evenly arranged balls are installed on the clamping seats, and the three clamping seats cooperate to clamp the guardrail end.

[0009] In a possible implementation, the axis of the rotating shaft is between two mounting seats located in the sealed cavity, the mounting seat located outside the sealed cavity is aligned with the axis of the rotating shaft, and a resistance roller is installed on the mounting seat located outside the sealed cavity.

[0010] In one possible implementation, the sealing cover includes a rectangular box slidably connected to four fixed brackets, the fixed brackets are in an I-shape, and the outer walls at the top corners of the rectangular box are provided with guide grooves that slide with the fixed brackets. Insert plates are installed at the upper and lower ends of the rectangular box, and slots that are plugged into the insert plates are opened on the upper and lower end sealing plates. Side panels that cooperate with the upper and lower end sealing plates are installed on both sides of the rectangular box arranged along its width direction, and the side of the side plate close to the guardrail is wavy in shape that cooperates with the side wall of the guardrail.

[0011] In one possible implementation, the push-locking mechanism includes a seesaw rotatably connected to a fixed bracket, a waist-shaped groove is provided at one end of the seesaw near the end sealing plate, a guide column inserted into the waist-shaped groove is rotatably connected to the end sealing plate, and a push roller corresponding to the seesaw is rotatably connected to the sealing cover through an ear plate, the push roller is used to push the seesaw when the sealing cover moves toward the end sealing plate, and a reset spring is installed between the end sealing plate and the fixed bracket.

[0012] In one possible implementation, the polishing mechanism is installed between the upper and lower end surfaces of the side of the sealing cover close to the end sealing plate. The polishing mechanism includes a rotating shaft rotatably connected between the upper and lower side walls of the sealing cover. A driving component (such as a motor) for driving the rotating shaft to rotate is installed on the sealing cover. The side wall of the rotating shaft is installed with grinding heads evenly arranged along its circumference through an elastic component. The horizontal cross-section of the grinding head is arc-shaped and the vertical cross-section is wavy. The side of the grinding head away from the rotating shaft is a stainless steel nylon brush (not shown in the figure). When the sealing cover moves toward the guardrail, the corresponding grinding head is driven to elastically contact the guardrail.

[0013] In one possible implementation, the elastic component includes a telescopic rod and a spring 1 that are symmetrically arranged up and down and installed between the grinding head and the rotating shaft. The two springs 1 are located between the two telescopic rods. The telescopic rod and the spring 1 cooperate to push the grinding head and the guardrail elastically tightly.

[0014] In a possible implementation manner, the dust suction mechanism includes a dust collection box installed on one side of the two end sealing plates and the two side plates in the sealing cavity. The dust collection boxes on the side plates are wavy, and a plurality of uniformly arranged dust suction holes are formed in the dust collection boxes. A telescopic tube is installed between two adjacent dust collection boxes. When the sealing cover moves towards the end sealing plate, the telescopic tube contracts. A dust suction tube passing through the sealing cover is installed on the two dust collection boxes installed on the side plates. A dust suction component (an existing vacuum cleaner) connected to the dust suction tube is arranged on the moving vehicle.

[0015] In a possible implementation manner, an auxiliary support component for assisting in supporting the two end sealing plates is installed on the moving vehicle. The auxiliary support component includes four support frames installed on the moving vehicle and arranged in a rectangular pattern. The support frames on the upper and lower sides are symmetrically arranged. The end of the support frame far from the moving vehicle is slidably connected to the end sealing plate, and the support frame is inclined.

[0016] The present invention also provides a method for surface refurbishment and polishing of a corrugated beam steel guardrail, including the following steps: S1, sleeve installation: The upper and lower guiding mechanisms are respectively sleeved on the upper and lower ends of the guardrail, and the guiding mechanisms elastically clamp the side walls of the upper and lower ends of the guardrail.

[0017] S2, sealing and locking: The driving source drives the sealing cover to move towards the end sealing plate. During the movement of the sealing cover, the two end sealing plates and the guiding mechanism are pulled towards the moving vehicle direction through the pushing and locking mechanism, so that the end sealing plate drives the guiding mechanism to abut against the guardrail tightly. At the same time, the sealing cover, the upper and lower two end sealing plates and the guardrail form a sealing cavity.

[0018] S3, polishing and dust suction treatment: The driving component drives the rotating shaft to rotate, and the rotating shaft drives the grinding head to rotate to polish the surface of the guardrail. When polishing, the dust suction component is started. The dust suction component adsorbs the dust generated by polishing through the dust suction tube, the dust collection box and the dust suction holes. The dust collection boxes are distributed at the gaps of the sealing cavity close to the guardrail to effectively remove the dust about to overflow from the sealing cavity. The moving vehicle drives the polishing mechanism, the sealing cover and the end sealing plate to move, move along the length direction of the guardrail and polish the guardrail until the polishing of the guardrail is completed.

[0019] The above one or more technical solutions in the embodiments of the present invention have at least one of the following beneficial effects: 1. A corrugated beam steel guardrail surface renovation and polishing device designed by the present invention realizes the functions of sealing the polishing part of the guardrail and automatic mechanical polishing through a sealing cover, two end sealing plates and a polishing mechanism in cooperation with a dust suction mechanism, thereby improving the polishing efficiency of the guardrail and avoiding the problems of large consumables consumption and high polishing cost when polishing the guardrail by traditional sandblasting. The polishing head in the polishing mechanism polishes with the guardrail through elastic adaptive force, avoiding the problem of the polishing head getting stuck when passing through the joint of the two guardrails. During the polishing process, the upper and lower guide mechanisms cooperate to guide the movement of the polishing mechanism, so that the polishing mechanism always polishes with the guardrail, greatly improving the polishing quality of the guardrail.

[0020] 2. When the sealing cover of the present invention contacts the end sealing plate, the sealing cover can not only lock the end sealing plate through the push locking mechanism, but also form a sealed cavity with the upper and lower end sealing plates and the guardrail to prevent the dust generated during polishing from flying around and affecting the working environment. Then, the dust generated during polishing is adsorbed and removed through the dust suction mechanism.

[0021] 3. In the present invention, the dust suction mechanism is arranged on the sealing cover and the two end sealing plates and is located on the side of the sealing cavity close to the guardrail, so that the dust suction mechanism can effectively remove the dust that is about to overflow from the sealing cavity at the gap of the sealing cavity close to the guardrail, further improving the dust removal effect during the polishing of the guardrail. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the polishing device of the present invention.

[0024] Figure 2 The present invention Figure 1 Schematic diagram of the partial three-dimensional structure (excluding the dust collection mechanism).

[0025] Figure 3 The present invention Figure 2 Main sectional view.

[0026] Figure 4 It is a cross-sectional view of the end sealing plate, the sealing cover, the push-locking mechanism and the dust collecting mechanism of the present invention.

[0027] Figure 5 The present inventionFigure 4 Partial enlarged schematic view at position A.

[0028] Figure 6 It is a schematic view of the connection structure between the end sealing plate and the fixed bracket of the present invention.

[0029] Reference numerals: 1, fixed bracket; 2, end sealing plate; 20, auxiliary support assembly; 201, support frame; 3, guiding mechanism; 30, mounting seat; 31, spring rod; 32, clamping seat; 4, sealing cover; 40, rectangular box; 41, insertion plate; 42, slot; 43, side plate; 5, pushing and locking mechanism; 50, rocker; 51, waist-shaped groove; 52, abutting roller; 53, return spring; 6, drive source; 7, polishing mechanism; 70, rotating shaft; 71, elastic assembly; 710, telescopic rod; 711, spring I; 72, grinding head; 8, dust suction mechanism; 80, dust collection box; 81, telescopic tube; 82, dust suction tube; 9, guardrail. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Refer to Figure 1 and Figure 4 , a surface renovation and polishing device for a corrugated beam steel guardrail, comprising: a mobile vehicle, four fixed brackets 1, two guiding mechanisms 3, a sealing cover 4, a polishing mechanism 7, a dust suction mechanism 8, and a drive source 6 installed on the mobile vehicle to drive the sealing cover 4 to move.

[0033] Refer to Figure 1 and Figure 4 , the four fixed brackets 1 are arranged in a rectangle and fixedly connected to the mobile vehicle. A pair of end sealing plates 2 are slidably arranged on the two horizontally corresponding fixed brackets 1, and the upper and lower end sealing plates 2 are symmetrically arranged; the guiding mechanisms 3 are installed on the side of the end sealing plates 2 away from the mobile vehicle, and the two guiding mechanisms 3 are respectively used for clamping the upper and lower sides of the guardrail 9; the sealing cover 4 is slidably installed on the four fixed brackets 1, and a pushing and locking mechanism 5 for pulling the two end sealing plates 2 and the guiding mechanisms 3 to move towards the mobile vehicle when the sealing cover 4 moves towards the end sealing plates 2 is installed on the sealing cover 4. The polishing mechanism 7 is installed on the sealing cover 4, and the dust suction mechanism 8 is jointly installed on the sealing cover 4 and the two end sealing plates 2.

[0034] In the initial state, the sealing cover 4 and the end sealing plate 2 are in a distant state, so that the guardrail 9 can enter between the upper and lower guide mechanisms 3 and the sealing cover 4, and at the same time, the guide mechanism 3 can be stuck at the upper and lower ends of the guardrail 9. Then the driving source 6 (such as a cylinder, etc.) drives the sealing cover 4 to move toward the end sealing plate 2. During the movement, the sealing cover 4 pushes the locking mechanism 5 to pull the two end sealing plates 2 and the guide mechanism 3 toward the moving vehicle, so that the end sealing plate 2 drives the guide mechanism 3 to press against the guardrail 9, so that the guide mechanism 3 can stably move and guide along the guardrail 9.

[0035] When the sealing cover 4 contacts the end sealing plate 2, the sealing cover 4 forms a sealing cavity with the upper and lower end sealing plates 2 and the guardrail 9, thereby preventing the dust generated during polishing from flying around and affecting the working environment. At this time, the polishing mechanism 7 contacts the side wall of the guardrail 9, and then the polishing mechanism 7 polishes the guardrail 9. At the same time, the moving vehicle drives the sealing cover 4 and the polishing mechanism 7 to move along the guardrail 9. The guiding mechanism 3 guides the movement of the sealing cover 4 and the upper and lower end sealing plates 2 along the guardrail 9, thereby improving the accuracy of the polishing process of the guardrail 9 by the polishing mechanism 7. At the same time, the dust collecting mechanism 8 absorbs and removes the dust generated during polishing. It should be noted that during the movement of the guiding mechanism 3, the fixed bracket 1, the sealing cover 4 and the polishing mechanism 7, the vertical plate fixedly connected between the moving vehicle and the fixed bracket 1 can be adaptively moved on the moving vehicle, so that there is enough moving space between the moving vehicle and the fixed bracket 1.

[0036] To sum up, the sealing cover 4, the two end sealing plates 2, the polishing mechanism 7 and the dust suction mechanism 8 cooperate to achieve the function of sealing and polishing the undisassembled guardrail 9, which is more environmentally friendly, saves more materials, and has higher polishing accuracy. It avoids the problem of serious material loss and environmental pollution when polishing the undisassembled guardrail 9 by traditional sand blasting.

[0037] See also Figure 1 , Figure 2 and Figure 3 The guiding mechanism 3 includes three mounting seats 30 installed in the middle of one side of the end sealing plate 2 away from the sealing cover 4, wherein two mounting seats 30 are located in the sealing cavity, and the other mounting seat 30 is located outside the sealing cavity. The mounting seat 30 located outside the sealing cavity is installed with a resisting roller, and the three mounting seats 30 are all installed with a clamping seat 32 through a spring rod 31. The clamping seats 32 are arranged in an arc shape on both sides along the length direction of the end sealing plate 2, so that the end of the guardrail 9 can enter between the clamping seats 32 on both sides. The clamping seats 32 are installed with evenly arranged balls, and the three clamping seats 32 cooperate to clamp the end of the guardrail 9.

[0038] The clamping seats 32 on both sides are sleeved on the end of the guardrail 9. The clamping seats 32 on both sides clamp the guardrail 9 under the elastic force of the spring rod 31. At the same time, the elastic clamping of the clamping seats 32 on the guardrail 9 can prevent the clamping seats 32 from being difficult to move when encountering the splicing part of two guardrails 9. When the moving vehicle moves, the clamping seats 32 move along the guardrail 9 to guide the polishing process of the guardrail 9.

[0039] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 , the sealing cover 4 includes a rectangular box 40 slidably connected to four fixed brackets 1. The fixed brackets 1 are in an I shape. Guide grooves slidably matched with the fixed brackets 1 are opened on the outer walls at the top corners of the rectangular box 40. A reinforcing member for strengthening the structural strength at the top corners of the rectangular box 40 is arranged inside the rectangular box 40. Plug plates 41 are installed at both the upper and lower ends of the rectangular box 40. Slots 42 for inserting the plug plates 41 are opened on both upper and lower end sealing plates 2. Side plates 43 cooperating with the upper and lower end sealing plates 2 are installed on both sides of the rectangular box 40 arranged along its width direction. The side of the side plate 43 close to the guardrail 9 is wavy and matches the side wall of the guardrail 9.

[0040] When the driving source 6 drives the sealing cover 4 to move towards the end sealing plate 2, the side plates 43 move along the width direction of the upper and lower end sealing plates 2. The sealing cover 4 pulls the end sealing plate 2 towards the moving vehicle through the pushing and locking mechanism 5 until the contact roller on the mounting seat 30 outside the sealing cavity contacts the guardrail 9. At this time, the plug plate 41 is inserted into the slot 42, and the cooperation between the plug plate 41 and the slot 42 supports the end of the sealing cover 4, avoiding the problem of insufficient supporting force at the end of the sealing cover 4 where the polishing mechanism 7 is installed.

[0041] Refer to Figure 4 , Figure 5 and Figure 6 , the pushing and locking mechanism 5 includes a rocker 50 rotatably connected to the fixed bracket 1. A waist-shaped groove 51 is opened at one end of the rocker 50 close to the end sealing plate 2. A guide post inserted into the waist-shaped groove 51 is rotatably connected to the end sealing plate 2. Contact rollers 52 corresponding to the rocker 50 one by one are rotatably connected to the sealing cover 4 through ear plates. The contact rollers 52 are used to push the rocker 50 when the sealing cover 4 moves towards the end sealing plate 2. A return spring 53 is installed between the end sealing plate 2 and the fixed bracket 1.

[0042] When the sealing cover 4 moves toward the end sealing plate 2, the sealing cover 4 drives the resistance roller 52 to press against one end of the seesaw 50, so that the seesaw 50 rotates along the rotating connection between it and the fixed bracket 1, and the other end of the seesaw 50 pulls the guide column during the rotation, and the guide column moves along the waist groove 51. At the same time, the guide column drives the end sealing plate 2 to move toward the sealing cover 4, so that the resistance roller on the mounting seat 30 located outside the sealing cavity is in contact with the guardrail 9, and the sealing cover 4 and the end sealing plate 2 are plugged into the plug plate 41 and the slot 42 to lock the position of the guide mechanism 3, so that the guide mechanism 3 can guide the movement of the sealing cover 4 and the polishing mechanism 7 later, thereby improving the accuracy of polishing the guardrail 9.

[0043] See also Figure 1 , Figure 2 and Figure 3 The polishing mechanism 7 is installed between the upper and lower end surfaces of the side of the sealing cover 4 close to the end sealing plate 2. The polishing mechanism 7 includes a rotating shaft 70 rotatably connected between the upper and lower side walls of the sealing cover 4. A driving component (such as a motor) for driving the rotating shaft 70 to rotate is installed on the sealing cover 4. The side wall of the rotating shaft 70 is installed with grinding heads 72 evenly arranged along its circumference through an elastic component 71. The horizontal cross-section of the grinding head 72 is arc-shaped and the vertical cross-section is wavy. The side of the grinding head 72 away from the rotating shaft 70 is a stainless steel nylon wire brush (not shown in the figure). When the sealing cover 4 moves toward the guardrail 9, the corresponding grinding head 72 is driven to elastically contact the guardrail 9.

[0044] See also Figure 3 The elastic component 71 includes a telescopic rod 710 and a spring 711 symmetrically arranged up and down and installed between the grinding head 72 and the rotating shaft 70. The two springs 711 are located between the two telescopic rods 710. The telescopic rod 710 and the spring 711 cooperate to push the grinding head 72 and the guardrail 9 elastically.

[0045] See also Figure 2 and Figure 3 The axis of the rotating shaft 70 is between the two mounting seats 30 located in the sealed cavity, and the mounting seat 30 located outside the sealed cavity is aligned with the axis of the rotating shaft 70, so that the contact part where the corresponding grinding head 72 grinds the guardrail 9 is located between the two mounting seats 30 in the sealed cavity, so that the guiding mechanism 3 can clamp and guide the guardrail 9 without affecting the grinding of the guardrail 9 by the grinding head 72.

[0046] When the sealing cover 4 moves towards the end sealing plate 2, it drives the polishing mechanism 7 to move towards the guardrail 9 until the grinding head 72 abuts against the guardrail 9. The grinding head 72 elastically abuts against the guardrail 9 through the elastic force of the first spring 711, so as to facilitate the transition when the grinding head 72 encounters the joint of two guardrails 9. After the guiding mechanism 3 clamps on the guardrail 9, the driving assembly drives the rotating shaft 70 to rotate, and the rotating shaft 70 drives the grinding head 72 to rotate to polish the surface of the guardrail 9.

[0047] Refer to Figure 4 , the dust suction mechanism 8 includes dust collection boxes 80 installed on one side of the two end sealing plates 2 and the two side plates 43 located in the sealing cavity. The dust collection boxes 80 on the side plates 43 are wavy, and a plurality of uniformly arranged dust suction holes are opened on the dust collection boxes 80. A telescopic pipe 81 is installed between two adjacent dust collection boxes 80. When the sealing cover 4 moves towards the end sealing plate 2, the telescopic pipe 81 contracts. Dust suction pipes 82 penetrating through the sealing cover 4 are installed on the two dust collection boxes 80 installed on the side plates 43. A dust suction assembly (an existing vacuum cleaner) connected to the dust suction pipes 82 is arranged on the moving vehicle.

[0048] When polishing, start the dust suction assembly. The dust suction assembly adsorbs the dust generated by polishing through the dust suction pipes 82, the dust collection boxes 80 and the dust suction holes, preventing the dust generated during polishing from flying around and polluting the environment.

[0049] Refer to Figure 1 、 Figure 2 And Figure 4 , an auxiliary support assembly 20 for assisting in supporting the two end sealing plates 2 is installed on the moving vehicle. The auxiliary support assembly 20 includes four support frames 201 installed on the moving vehicle and arranged in a rectangular shape. The support frames 201 on the upper and lower sides are symmetrically arranged. One end of the support frame 201 away from the moving vehicle is slidably connected to the end sealing plate 2, and the support frame 201 is inclined. When the end sealing plate 2 moves, the end sealing plate 2 moves along the support frame 201. The support frame 201, the end sealing plate 2, the fixed support 1 and the moving vehicle form a triangle, thus avoiding the cantilever beam state of the fixed support 1 and the end of the end sealing plate 2 away from the moving vehicle, and further improving the stability of the end sealing plate 2 and the fixed support 1.

[0050] Refer to Figures 1 - 6 , the present invention also provides a method for surface renovation and polishing of a corrugated beam steel guardrail, including the following steps: S1, sleeving and installation: sleeving and installing the upper and lower guiding mechanisms 3 on the upper and lower ends of the guardrail 9 respectively, and the guiding mechanism 3 elastically clamps the side walls of the upper and lower ends of the guardrail 9.

[0051] S2. Sealing and locking: The drive source 6 drives the sealing cover 4 to move towards the end sealing plate 2. During the movement of the sealing cover 4, it drives the two end sealing plates 2 and the guiding mechanism 3 to move towards the moving vehicle direction through the pushing and locking mechanism 5, so that the end sealing plate 2 drives the guiding mechanism 3 to abut against the guardrail 9. At the same time, the sealing cover 4 and the upper and lower end sealing plates 2 and the guardrail 9 form a sealing cavity.

[0052] S3. Polishing and dust suction treatment: The drive assembly drives the rotating shaft 70 to rotate, and the rotating shaft 70 drives the grinding head 72 to rotate to polish the surface of the guardrail 9. When polishing, the dust suction assembly is started. The dust suction assembly adsorbs the dust generated by polishing through the dust suction pipe 82, the dust collection box 80 and the dust suction holes. The dust collection box 80 is distributed at the gap of the sealing cavity close to the guardrail 9 to effectively remove the dust about to overflow from the sealing cavity. The moving vehicle drives the polishing mechanism 7, the sealing cover 4 and the end sealing plate 2 to move along the length direction of the guardrail 9 and polish the guardrail 9 until the polishing of the guardrail 9 is completed.

[0053] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0054] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected", "installed", "connected" should be understood in a broad sense. For example, it 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0055] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A surface renovation and polishing device for a corrugated steel guardrail, comprising: The mobile vehicle is characterized by: Four fixed brackets are arranged in a rectangular shape on the mobile vehicle, and end sealing plates are slidably provided on two fixed brackets correspondingly distributed in the horizontal direction, and the two end sealing plates are symmetrically arranged up and down; Two guide mechanisms are respectively arranged on the two end sealing plates, clamping the upper and lower sides of the guardrail respectively; The sealing cover is slidably arranged on four fixed brackets, and is provided with a push locking mechanism for pulling the two end sealing plates and the guide mechanism to move toward the moving vehicle when the sealing cover moves toward the end sealing plate. The sealing cover, the upper and lower end sealing plates, and the guardrail form a sealed cavity, and the moving vehicle is provided with a driving source for driving the sealing cover; The polishing mechanism is arranged on one side of the sealing cover close to the end sealing plate, and includes a rotating shaft arranged on the sealing cover and a driving component for driving the rotating shaft. The side wall of the rotating shaft is installed with grinding heads evenly arranged along its circumference through an elastic component, and the vertical cross section of the grinding head is wavy; The dust collecting mechanism is arranged on the sealing cover and the two end sealing plates and is located on one side of the sealing cavity close to the guardrail; When the polishing mechanism polishes the guardrail, the dust collecting mechanism removes the dust generated by the polishing, and the guiding mechanism guides the movement of the sealing cover and the polishing mechanism.

2. According to claim 1, a surface renovation and polishing device for a corrugated steel guardrail is characterized in that: The guiding mechanism includes three mounting seats installed in the middle of one side of the end sealing plate away from the sealing cover, two of which are located in the sealing cavity, and the other is located outside the sealing cavity. The three mounting seats are all equipped with clamping seats through spring rods. The clamping seats are arranged in arc shape on both sides along the length direction of the end sealing plate. Evenly arranged balls are installed on the clamping seats. The three clamping seats cooperate to clamp the end of the guardrail.

3. According to claim 1, a surface renovation and polishing device for a corrugated steel guardrail is characterized in that: The sealing cover includes a rectangular box slidably connected to four fixed brackets, with plug plates installed at both upper and lower ends of the rectangular box, and slots for plugging with the plug plates are provided on the upper and lower end sealing plates, and side plates matching with the upper and lower end sealing plates are installed on both sides of the rectangular box arranged along its width direction, and the side of the side plate close to the guardrail is wavy in shape matching with the side wall of the guardrail.

4. According to claim 1, a surface renovation and polishing device for a corrugated steel guardrail is characterized in that: The push-locking mechanism includes a seesaw rotatably connected to a fixed bracket, a waist-shaped groove is provided at one end of the seesaw close to the end sealing plate, a guide column inserted into the waist-shaped groove is rotatably connected to the end sealing plate, and a push roller corresponding to the seesaw is rotatably connected to the sealing cover through an ear plate. The push roller is used to push the seesaw when the sealing cover moves toward the end sealing plate, and a reset spring is installed between the end sealing plate and the fixed bracket.

5. According to claim 3, a surface renovation and polishing device for a corrugated steel guardrail is characterized in that: The dust collection mechanism includes two end sealing plates and two side plates, each of which is provided with a dust collection box on one side of the sealing cavity. The dust collection box on the side plate is wavy in shape, and is provided with a plurality of evenly distributed dust collection holes. A telescopic tube is installed between two adjacent dust collection boxes. Dust collection pipes that penetrate the sealing cover are installed on the two dust collection boxes installed on the side plates, and a dust collection assembly connected with the dust collection pipe is provided on the mobile vehicle.

6. According to claim 1, a surface renovation and polishing device for a corrugated steel guardrail is characterized in that: The elastic component includes a telescopic rod and a spring 1 which are symmetrically arranged up and down and installed between the grinding head and the rotating shaft. The two springs 1 are located between the two telescopic rods. The telescopic rod and the spring 1 cooperate to push the grinding head and the guardrail to elastically press against each other.

7. According to claim 1, a surface renovation and polishing device for a corrugated steel guardrail is characterized in that: An auxiliary support assembly for auxiliary supporting the two end sealing plates is installed on the mobile vehicle.

8. According to claim 7, a surface renovation and polishing device for a corrugated steel guardrail is characterized in that: The auxiliary support assembly includes four support frames installed on the mobile vehicle and arranged in a rectangular shape. The support frames on the upper and lower sides are arranged symmetrically. The end of the support frame away from the mobile vehicle is slidably connected to the end sealing plate and the support frame is inclined. The support frame, the end sealing plate, the fixed bracket and the mobile vehicle form a triangle.

9. According to claim 2, a surface renovation and polishing device for a corrugated steel guardrail is characterized in that: The axis of the rotating shaft is between two mounting seats located in the sealing cavity, and the mounting seat located outside the sealing cavity is aligned with the axis of the rotating shaft.

10. A method for refurbishing and polishing the surface of a corrugated steel guardrail, which is completed by using the device for refurbishing and polishing the surface of a corrugated steel guardrail according to claim 1, characterized in that: The following steps are involved: S1, sleeve installation: the upper and lower guide mechanisms are respectively sleeved on the upper and lower ends of the guardrail, and the guide mechanisms elastically clamp the upper and lower side walls of the guardrail; S2, sealing locking: the driving source drives the sealing cover to move toward the end sealing plate. During the movement, the sealing cover pulls the two end sealing plates and the guide mechanism toward the moving vehicle through the push locking mechanism, so that the end sealing plate drives the guide mechanism to press against the guardrail, and at the same time, the sealing cover and the upper and lower end sealing plates and the guardrail plate form a sealing cavity; S3, polishing and dust collection: the driving assembly drives the rotating shaft to rotate, and the rotating shaft drives the grinding head to rotate to polish the surface of the guardrail. During polishing, the dust collection mechanism is started to absorb the dust generated by polishing and the dust that is about to overflow from the sealing chamber. The mobile vehicle drives the polishing mechanism, the sealing cover, and the end sealing plate to move along the length direction of the guardrail and polish the guardrail.

Images