A dust removal device of a double-rail guardrail repair vehicle

Abstract

The application provides a dust removal device of a double-rail guardrail repair vehicle, which comprises a vehicle body, a rotating mechanism, a working arm and a dust removal mechanism. The rotating mechanism is installed on the vehicle body. The working arm is installed on the rotating mechanism and rotates under the driving of the rotating mechanism. The dust removal mechanism comprises a dust removal rack, at least one first driver, a cyclone dust collector, a dust removal cover and a fan. The dust removal rack is installed on the working arm. The at least one first driver and the cyclone dust collector are both installed on the dust removal rack. The fan is installed on the cyclone dust collector. The dust removal cover comprises a top cover, a connecting cylinder, a bottom cover and an extension cover. The top cover is installed on the at least one first driver. The connecting cylinder is hinged to the top cover. The bottom cover is hinged to the connecting cylinder. The extension cover is installed between the top cover and the bottom cover. The dust removal device of the double-rail guardrail repair vehicle provided by the application can be applied to different construction environments such as uphill operation, downhill operation, left inclination operation and right inclination operation, has a wide application range and good sealing effect.

Description

Technical Field

[0001] This application relates to the field of special vehicle technology, and in particular to a dust removal device for a double-rail guardrail emergency repair vehicle. Background Technology

[0002] The dual-rail guardrail repair vehicle is a specialized vehicle used for the emergency repair and maintenance of guardrails on highways and expressways. It integrates multiple functions such as pile driving, drilling, and pile extraction. An impact hammer can be used to drive piles into the ground, a drilling machine can perform drilling operations, and a pile extraction mechanism can remove piles from the ground. One vehicle can complete multiple operations required for guardrail repair, reducing costs and manpower input.

[0003] Dual-rail guardrail repair vehicles generate a large amount of dust during pile driving and drilling, significantly impacting the surrounding environment. Therefore, these vehicles are typically equipped with dust collection devices. Currently, dust collection devices generally include two methods: water mist dust collection and negative pressure dust collection. Water mist dust collection is low-cost and highly adaptable, but it generates wastewater during the process, making it unsuitable for areas with high environmental protection requirements (such as urban roads). When using negative pressure dust collection, fans and dust hoods are usually required. However, due to the complex working environment of dual-rail guardrail repair vehicles (uphill work, downhill work, left-tilt work, right-tilt work, etc.), dust hoods cannot effectively cover the work area, resulting in poor dust collection efficiency. Summary of the Invention

[0004] The purpose of this application is to provide a dust removal device for a double-rail guardrail repair vehicle, so as to solve the technical problem that the dust removal hood in the prior art cannot effectively cover the working area, resulting in poor dust removal effect.

[0005] To achieve the above objectives, the technical solution adopted in this application is: to provide a dust removal device for a double-rail guardrail repair vehicle, comprising: Vehicle body; A rotating mechanism, which is mounted on the vehicle body; A working arm, which is mounted on the rotating mechanism and rotates under the drive of the rotating mechanism; The dust removal mechanism includes a dust removal frame, at least one first driver, a cyclone dust collector, a dust collection hood, and a fan. The dust removal frame is mounted on the working arm. At least one first driver and the cyclone dust collector are both mounted on the dust removal frame. The fan is mounted on the cyclone dust collector and draws air from the dust collection hood through the cyclone dust collector. The dust collector hood includes a top cover, a connecting cylinder, a bottom cover, and a telescopic cover. The top cover is mounted on at least one first driver and moves along a first direction under the drive of at least one first driver, and is in communication with the cyclone dust collector. The connecting cylinder is hinged to the top cover and can rotate relative to the top cover about a second direction, and is sleeved on the top cover. The bottom cover is hinged to the connecting cylinder and can rotate relative to the connecting cylinder about a third direction. The telescopic cover is installed between the top cover and the bottom cover, and connects the top cover and the bottom cover.

[0006] Optionally, the top cover includes a first cover body and two first hinge seats, both of which are mounted on the first cover body and hinged to the connecting cylinder, and are arranged symmetrically along the second direction.

[0007] Optionally, the bottom cover includes a second cover body and two second hinge seats, both of which are mounted on the second cover body and hinged to the connecting cylinder, and are arranged symmetrically along a third direction.

[0008] Optionally, the first hinge seat includes a first extension plate and a first hinge plate. The first extension plate is installed on the outer periphery of the first cover, and the first hinge plate is connected to the end of the first extension plate away from the first cover and is bent relative to the first extension plate.

[0009] Optionally, the second hinge seat includes a second extension plate and a second hinge plate. The second extension plate is mounted on the outer periphery of the second cover, and the second hinge plate is connected to the end of the second extension plate away from the second cover and is bent relative to the second extension plate.

[0010] Optionally, the dust removal frame includes a fixed frame and multiple fixed plates, the fixed frame is mounted on the working arm, and the multiple fixed plates are all mounted on the fixed frame; The top cover includes a first cover body, at least one limiting rod and at least one limiting block. At least one of the limiting rods is connected to the outer periphery of the first cover body and passes through the plurality of fixing plates. The limiting block is installed at the end of at least one limiting rod away from the first cover body.

[0011] Optionally, the top cover includes a first cover body, an intermediate pipe and a connecting pipe, the intermediate pipe being formed in the first cover body and communicating with the first cover body, and the connecting pipe being formed on the outer periphery of the intermediate pipe and communicating with the intermediate pipe; The cyclone dust collector includes a cylindrical section, a conical section, an inlet pipe, an outlet pipe, and a dust collection chamber. The conical section is formed in the cylindrical section and communicates with the cylindrical section. The inlet pipe is formed on the outer periphery of the cylindrical section and communicates with the cylindrical section. The outlet pipe is formed in the cylindrical section, passes through the cylindrical section, and communicates with the cylindrical section. The dust collection chamber is formed at the end of the conical section away from the cylindrical section. The dust removal mechanism also includes a telescopic pipe, which is installed between the connecting pipe and the air inlet pipe and is used to connect the connecting pipe and the air inlet pipe.

[0012] Optionally, the cyclone dust collector further includes a mounting boss formed on the outer periphery of the cylindrical portion.

[0013] Optionally, the dust cover further includes a flexible sealing ring, which is installed at the end of the bottom cover away from the top cover.

[0014] Optionally, the working arm includes a fixed arm, a telescopic arm, and a second driver. The fixed arm is mounted on the rotating mechanism and rotates under the drive of the rotating mechanism. The telescopic arm is hinged to the end of the fixed arm away from the rotating mechanism. The second driver is hinged between the fixed arm and the telescopic arm and is used to drive the telescopic arm to rotate relative to the fixed arm.

[0015] The beneficial effects of the dust removal device for a double-rail guardrail repair vehicle provided in this application are as follows: The rotating mechanism and working arm can adjust the position of the dust collector hood according to the piling and drilling locations, ensuring the hood always faces the respective locations for effective dust removal. This wide applicability makes it suitable for various construction environments, including uphill and downhill work, left-leaning and right-leaning operations, further expanding its applicability without interfering with the operation of the impact hammer and drilling machine. The cyclone dust collector effectively separates dust from air, providing excellent dust removal and easy cleaning. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A perspective view of a double-rail guardrail repair vehicle provided in this application, excluding the vehicle body and rotating mechanism; Figure 2A first-view perspective perspective view of the dust removal hood of a dust removal device for a dual-rail guardrail emergency repair vehicle provided in this application; Figure 3 A second-view perspective perspective view of the dust removal hood of a dust removal device for a dual-rail guardrail emergency repair vehicle provided in this application; Figure 4 for Figure 1 A magnified view of a section at point A in the middle; Figure 5 A perspective view of the cyclone dust collector and fan of a dust removal device for a double-rail guardrail repair vehicle provided in this application; Figure 6 A schematic diagram of the downhill operation of a dust removal device for a double-rail guardrail repair vehicle provided in this application; Figure 7 A schematic diagram of the uphill operation of a dust removal device for a double-rail guardrail repair vehicle provided in this application; Figure 8 A schematic diagram of the left-tilting operation of the dust removal device of a double-rail guardrail repair vehicle provided in this application; Figure 9 This is a schematic diagram of the right-tilt operation of the dust removal device of a double-rail guardrail repair vehicle provided in this application.

[0018] The following are the labeling elements in the figure: 1. Vehicle body; 2. Rotating mechanism; 3. Working arm; 31. Fixed arm; 32. Telescopic arm; 33. Second actuator; 4. Dust collector frame; 41. Fixed frame; 42. Fixing plate; 5. First driver; 6. Cyclone dust collector; 61. Cylindrical section; 62. Conical section; 63. Inlet duct; 64. Outlet duct; 65. Dust collection chamber; 66. Mounting boss; 7. Dust hood; 71. Top cover; 711. First cover body; 712. First hinge seat; 7121. First extension plate; 7122. First hinge plate; 713. Limiting rod; 714. Limiting block; 715. Intermediate pipe; 716. Connecting pipe; 72. Connecting cylinder; 73. Bottom cover; 731. Second cover body; 732. Second hinge seat; 7321. Second extension plate; 7322. Second hinge plate; 74. Telescopic cover; 75. Flexible sealing ring; 8. Fan; 9. Expansion joints. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0020] It should be noted that when a component is referred to as being "mounted to," "fixed to," or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0021] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "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 application 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 application.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] like Figures 1 to 9As shown, this application provides a dust removal device for a double-rail guardrail repair vehicle, including a vehicle body 1, a rotating mechanism 2, a working arm 3, and a dust removal mechanism (not shown in the figure). The rotating mechanism 2 is mounted on the vehicle body 1. The working arm 3 is mounted on the rotating mechanism 2 and rotates under the drive of the rotating mechanism 2. The dust removal mechanism includes a dust removal frame 4, at least one first driver 5, a cyclone dust collector 6, a dust removal hood 7, and a fan 8. The dust removal frame 4 is mounted on the working arm 3. At least one first driver 5 and the cyclone dust collector 6 are both mounted on the dust removal frame 4. The fan 8 is mounted on the cyclone dust collector 6 and draws air from the dust removal hood 7 through the cyclone dust collector 6. The dust collector hood 7 includes a top cover 71, a connecting cylinder 72, a bottom cover 73, and a telescopic cover 74. The top cover 71 is mounted on at least one first driver 5 and moves along a first direction under the drive of at least one first driver 5, and is connected to the cyclone dust collector 6. The connecting cylinder 72 is hinged to the top cover 71 and can rotate relative to the top cover 71 around a second direction, and is sleeved on the top cover 71. The bottom cover 73 is hinged to the connecting cylinder 72 and can rotate relative to the connecting cylinder 72 around a third direction. The telescopic cover 74 is installed between the top cover 71 and the bottom cover 73 and connects the top cover 71 and the bottom cover 73.

[0024] It should be noted that the "above" and "below" directions refer to the bidirectional directions of the central axis defined by the structure of the top cover 71 itself, specifically as follows: Figure 1 The X-axis is shown in the diagram. The second direction, above and below, refers to one of the radial directions defined by the structure of the connecting cylinder 72 itself, specifically as shown below. Figure 1 The Y-axis is shown in the diagram. The third direction above and below refers to another radial direction defined by the structure of the connecting cylinder 72 itself, specifically as shown below. Figure 1 The Z-axis is shown in the figure.

[0025] This application provides a dust removal device for a double-rail guardrail repair vehicle. The connecting cylinder 72 can rotate relative to the top cover 71 in a second direction, and the bottom cover 73 can rotate relative to the connecting cylinder 72 in a third direction. Therefore, with the cooperation of the connecting cylinder 72, the bottom cover 73 can rotate relative to the top cover 71 in two different directions. Under different construction conditions, the bottom cover 73 can always maintain a relatively close contact with the ground, minimizing dust leakage and providing a good sealing effect. When the bottom cover 73 rotates relative to the top cover 71 in two different directions, the telescopic cover 74 prevents interference with the rotation of the bottom cover 73 and ensures that the top cover 71 and the bottom cover 73 remain connected. In summary, with the combined action of the top cover 71, connecting cylinder 72, bottom cover 73, and telescopic cover 74, the dust removal cover 7 is suitable for different construction environments such as uphill work, downhill work, left-tilted work, and right-tilted work, offering a wide range of applications and excellent sealing performance. Under the action of the fan 8, the dust-laden air inside the dust collector 7 can be transported to the cyclone dust collector 6, which can separate dust and air, resulting in good dust removal effect. Under the action of the rotating mechanism 2, the dust collector 7 can be driven to rotate relative to the vehicle body 1 through the working arm 3 and the dust collector frame 4. Under the action of the working arm 3, the dust collector 7 can be driven to move relative to the vehicle body 1 through the dust collector frame 4. In summary, under the combined action of the rotating mechanism 2 and the working arm 3, the position of the dust collector 7 can be adjusted according to the piling position and the drilling position, so that the dust collector 7 can always be aligned with the piling position and the drilling position, which has a wide range of applications and helps to improve the convenience of use. Under the action of the first drive 5, the dust collector 7 can be driven to move along the first direction, so that the dust collector 7 can cover the piling position and the drilling position. It can also be driven away from the piling position and the drilling position after the dust removal is completed, which makes it easier for the rotating mechanism 2 and the working arm 3 to move the dust collector 7.

[0026] Optionally, the first actuator 5 is configured as a hydraulic cylinder.

[0027] In one embodiment of this application, please refer to Figures 1 to 9 The top cover 71 includes a first cover body 711 and two first hinge seats 712. The two first hinge seats 712 are both installed on the first cover body 711 and hinged to the connecting cylinder 72, and are arranged symmetrically along the second direction.

[0028] With this configuration, under the action of the two first hinge seats 712, the connecting cylinder 72 can be suspended from the first cover 711 and can also rotate relative to the first cover 711 in a second direction.

[0029] In one embodiment of this application, please refer to the following: Figures 1 to 9 The bottom cover 73 includes a second cover body 731 and two second hinge seats 732. The two second hinge seats 732 are both installed on the second cover body 731 and hinged to the connecting cylinder 72, and are arranged symmetrically along the third direction.

[0030] With this configuration, under the action of the two second hinge seats 732, the second cover 731 can be suspended from the connecting cylinder 72 and can also rotate relative to the connecting cylinder 72 around a third direction.

[0031] In one embodiment of this application, see [reference] Figures 1 to 9 The first hinge seat 712 includes a first extension plate 7121 and a first hinge plate 7122. The first extension plate 7121 is installed on the outer periphery of the first cover 711, and the first hinge plate 7122 is connected to the end of the first extension plate 7121 away from the first cover 711 and is bent relative to the first extension plate 7121.

[0032] This configuration, under the action of the first extension plate 7121, increases the distance between the first hinge plate 7122 and the first cover 711, thus facilitating the rotation of the connecting cylinder 72 when it is hinged to the first hinge plate 7122. Compared to the connecting cylinder 72 being directly hinged to the first extension plate 7121, the first hinge plate 7122 provides better structural stability, making it less prone to detachment.

[0033] In one embodiment of this application, please refer to Figures 1 to 9 The second hinge seat 732 includes a second extension plate 7321 and a second hinge plate 7322. The second extension plate 7321 is installed on the outer periphery of the second cover 731, and the second hinge plate 7322 is connected to the end of the second extension plate 7321 away from the second cover 731 and is bent relative to the second extension plate 7321.

[0034] This configuration, under the action of the second extension plate 7321, increases the distance between the second hinge plate 7322 and the second cover 731, thus facilitating the rotation of the second cover 731 when the connecting cylinder 72 is hinged to the second hinge plate 7322. Compared to the connecting cylinder 72 being directly hinged to the second extension plate 7321, the second hinge plate 7322 provides better structural stability, making it less likely for the second cover 731 to detach.

[0035] In one embodiment of this application, please refer to the following: Figures 1 to 9 The dust collector frame 4 includes a fixed frame 41 and multiple fixed plates 42. The fixed frame 41 is installed on the working arm 3, and the multiple fixed plates 42 are all installed on the fixed frame 41. The top cover 71 includes a first cover body 711, at least one limiting rod 713, and at least one limiting block 714. The at least one limiting rod 713 is connected to the outer periphery of the first cover body 711 and passes through the multiple fixed plates 42. The limiting block 714 is installed at the end of the at least one limiting rod 713 away from the first cover body 711.

[0036] This configuration, with the fixed frame 41 in place, provides mounting points for multiple fixed plates 42. The multiple fixed plates 42 guide the limiting rod 713, ensuring it can only move in the first direction, thus improving the stability of the first cover 711's movement in that direction. The limiting block 714 limits the limiting rod 713, preventing it from detaching from the fixed plate 42, and further enhancing the structural stability between the limiting rod 713 and the fixed plate 42.

[0037] In one embodiment of this application, see [reference] Figures 1 to 9 The top cover 71 includes a first cover body 711, an intermediate pipe 715, and a connecting pipe 716. The intermediate pipe 715 is formed in the first cover body 711 and communicates with the first cover body 711. The connecting pipe 716 is formed on the outer periphery of the intermediate pipe 715 and communicates with the intermediate pipe 715. The cyclone dust collector 6 includes a cylindrical part 61, a conical part 62, an air inlet pipe 63, an air outlet pipe 64, and a dust collection chamber 65. The conical part 62 is formed in the cylindrical part 61 and communicates with the cylindrical part 61. The air inlet pipe 63 is formed on the outer periphery of the cylindrical part 61 and communicates with the cylindrical part 61. The air outlet pipe 64 is formed in the cylindrical part 61, passes through the cylindrical part 61, and communicates with the cylindrical part 61. The dust collection chamber 65 is formed at the end of the conical part 62 away from the cylindrical part 61. The dust removal mechanism also includes a telescopic pipe 9, which is installed between the connecting pipe 716 and the air inlet pipe 63 and is used to connect the connecting pipe 716 and the air inlet pipe 63.

[0038] This configuration, with the intermediate pipe 715, avoids obstructing the impact hammer and drilling machine, allowing them to pass through the dust collector 7 for operation and ensuring smooth construction. The connecting pipe 716 allows dust-laden air from the side of the intermediate pipe 715 to be transported through the telescopic pipe 9 to the air inlet pipe 63, again without interfering with the operation of the impact hammer and drilling machine. The cylindrical section 61 allows the dust-laden air to enter tangentially, guiding it into rotational motion and providing a basis for generating centrifugal force. The conical section 62 enhances the rotational intensity of the dust-laden air and guides the dust into the dust collection chamber 65. The dust collection chamber 65 collects the separated dust. The exhaust pipe 64, along with the fan 8, discharges the dust-collected air. In summary, the combined action of the cylindrical section 61, the conical section 62, the inlet pipe 63, the outlet pipe 64, and the dust collection chamber 65 effectively separates dust from air, resulting in good dust removal performance. The telescopic pipe 9 connects the connecting pipe 716 and the inlet pipe 63 without interfering with the movement of the dust collector 7 in the first direction.

[0039] In one embodiment of this application, please refer to Figures 1 to 9The cyclone dust collector 6 also includes a mounting boss 66, which is formed on the outer periphery of the cylindrical portion 61.

[0040] This configuration, with the support of the mounting boss 66, facilitates the installation of the cyclone dust collector 6 onto the fixing plate 42, improving installation convenience and structural stability between the cyclone dust collector 6 and the fixing plate 42.

[0041] In one embodiment of this application, please refer to the following: Figures 1 to 9 The dust cover 7 also includes a flexible sealing ring 75, which is installed at the end of the bottom cover 73 away from the top cover 71.

[0042] With this configuration, the flexible sealing ring 75 can prevent the bottom cover 73 from directly contacting the ground. The flexible sealing ring 75 can better seal the gap between the bottom cover 73 and the ground, resulting in a good sealing effect.

[0043] In one embodiment of this application, see [reference] Figures 1 to 9 The working arm 3 includes a fixed arm 31, a telescopic arm 32, and a second driver 33. The fixed arm 31 is mounted on the rotating mechanism 2 and rotates under the drive of the rotating mechanism 2. The telescopic arm 32 is hinged to the end of the fixed arm 31 away from the rotating mechanism 2. The second driver 33 is hinged between the fixed arm 31 and the telescopic arm 32 and is used to drive the telescopic arm 32 to rotate relative to the fixed arm 31.

[0044] With this configuration, the telescopic arm 32 can drive the dust collector 7 to move relative to the fixed arm 31. The second actuator 33 can drive the dust collector 7 to rotate relative to the fixed arm 31, allowing adjustment of the dust collector 7's tilt angle. The combined action of the fixed arm 31, the telescopic arm 32, and the second actuator 33 ensures that the dust collector 7 is directly facing the piling and drilling positions, making adjustment convenient and applicable to a wide range of situations.

[0045] Optionally, the second actuator 33 is configured as a hydraulic cylinder.

[0046] The working principle of the dust removal device for a double-rail guardrail repair vehicle provided in this application is as follows: Depending on the piling or drilling location, the position of the dust collector 7 is adjusted by the rotating mechanism 2 and the working arm 3 to ensure that the dust collector 7 is directly facing the piling or drilling location. After alignment, the first driver 5 drives the dust collector 7 to move towards the ground in a first direction until the flexible sealing ring 75 contacts the ground. Under the support of the ground, the bottom cover 73 rotates relative to the top cover 71 via the connecting cylinder 72 until the flexible sealing ring 75 is completely in contact with the ground. The impact hammer or drilling machine enters the dust collector 7 through the intermediate pipe 715 and performs piling or drilling operations. During piling or drilling operations, a large amount of dust is generated. Under the action of the fan 8, the dust-laden air enters the cyclone dust collector 6 sequentially through the intermediate pipe 715, the connecting pipe 716, and the telescopic pipe 9. The cyclone dust collector 6 separates the dust and air, completing the dust removal. Before dust removal, the operator installs a collection bag (not shown in the figure) at the dust collection chamber 65, and the cyclone dust collector 6 discharges the dust into the collection bag. After dust removal is completed, staff will remove the collection bags directly from dust collection chamber 65 for convenient and unified dust disposal later.

[0047] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. A dust removal device for a double-rail guardrail emergency repair vehicle, characterized in that, include: Vehicle body (1); Rotating mechanism (2), the rotating mechanism (2) is mounted on the vehicle body (1); The working arm (3) is mounted on the rotating mechanism (2) and rotates under the drive of the rotating mechanism (2); The dust removal mechanism includes a dust removal frame (4), at least one first driver (5), a cyclone dust collector (6), a dust removal hood (7), and a fan (8). The dust removal frame (4) is mounted on the working arm (3). At least one first driver (5) and the cyclone dust collector (6) are both mounted on the dust removal frame (4). The fan (8) is mounted on the cyclone dust collector (6) and draws air from the dust removal hood (7) through the cyclone dust collector (6). The dust collector hood (7) includes a top cover (71), a connecting cylinder (72), a bottom cover (73), and a telescopic cover (74). The top cover (71) is mounted on at least one first driver (5) and moves along a first direction under the drive of at least one first driver (5), and is connected to the cyclone dust collector (6). The connecting cylinder (72) is hinged to the top cover (71) and can rotate relative to the top cover (71) around a second direction, and is sleeved on the top cover (71). The bottom cover (73) is hinged to the connecting cylinder (72) and can rotate relative to the connecting cylinder (72) around a third direction. The telescopic cover (74) is installed between the top cover (71) and the bottom cover (73) and connects the top cover (71) and the bottom cover (73).

2. The dust removal device for a double-rail guardrail repair vehicle as described in claim 1, characterized in that, The top cover (71) includes a first cover body (711) and two first hinge seats (712). The two first hinge seats (712) are installed on the first cover body (711) and hinged to the connecting cylinder (72), and are arranged symmetrically along the second direction.

3. The dust removal device for a double-rail guardrail repair vehicle as described in claim 1, characterized in that, The bottom cover (73) includes a second cover body (731) and two second hinge seats (732). The two second hinge seats (732) are installed on the second cover body (731) and hinged to the connecting cylinder (72), and are arranged symmetrically along the third direction.

4. The dust removal device for a double-rail guardrail repair vehicle as described in claim 2, characterized in that, The first hinge base (712) includes a first extension plate (7121) and a first hinge plate (7122). The first extension plate (7121) is installed on the outer periphery of the first cover (711). The first hinge plate (7122) is connected to the end of the first extension plate (7121) away from the first cover (711) and is bent relative to the first extension plate (7121).

5. The dust removal device for a double-rail guardrail repair vehicle as described in claim 3, characterized in that, The second hinge seat (732) includes a second extension plate (7321) and a second hinge plate (7322). The second extension plate (7321) is installed on the outer periphery of the second cover (731). The second hinge plate (7322) is connected to the end of the second extension plate (7321) away from the second cover (731) and is bent relative to the second extension plate (7321).

6. The dust removal device for a double-rail guardrail repair vehicle as described in claim 1, characterized in that, The dust removal frame (4) includes a fixed frame (41) and multiple fixed plates (42). The fixed frame (41) is installed on the working arm (3), and the multiple fixed plates (42) are all installed on the fixed frame (41). The top cover (71) includes a first cover body (711), at least one limiting rod (713) and at least one limiting block (714). At least one of the limiting rods (713) is connected to the outer periphery of the first cover body (711) and passes through a plurality of the fixing plates (42). The limiting block (714) is installed at one end of the at least one limiting rod (713) away from the first cover body (711).

7. The dust removal device for a double-rail guardrail repair vehicle as described in claim 1, characterized in that, The top cover (71) includes a first cover body (711), an intermediate pipe (715) and a connecting pipe (716). The intermediate pipe (715) is formed on the first cover body (711) and communicates with the first cover body (711). The connecting pipe (716) is formed on the outer periphery of the intermediate pipe (715) and communicates with the intermediate pipe (715). The cyclone dust collector (6) includes a cylindrical part (61), a conical part (62), an air inlet pipe (63), an air outlet pipe (64), and a dust collection chamber (65). The conical part (62) is formed on the cylindrical part (61) and communicates with the cylindrical part (61). The air inlet pipe (63) is formed on the outer periphery of the cylindrical part (61) and communicates with the cylindrical part (61). The air outlet pipe (64) is formed on the cylindrical part (61), passes through the cylindrical part (61), and communicates with the cylindrical part (61). The dust collection chamber (65) is formed at the end of the conical part (62) away from the cylindrical part (61). The dust removal mechanism also includes a telescopic pipe (9), which is installed between the connecting pipe (716) and the air inlet pipe (63) and is used to connect the connecting pipe (716) and the air inlet pipe (63).

8. The dust removal device for a double-rail guardrail repair vehicle as described in claim 7, characterized in that, The cyclone dust collector (6) also includes a mounting boss (66) formed on the outer periphery of the cylindrical portion (61).

9. The dust removal device for a double-rail guardrail repair vehicle as described in claim 1, characterized in that, The dust cover (7) also includes a flexible sealing ring (75), which is installed at the end of the bottom cover (73) away from the top cover (71).

10. The dust removal device for a double-rail guardrail repair vehicle as described in claim 1, characterized in that, The working arm (3) includes a fixed arm (31), a telescopic arm (32), and a second driver (33). The fixed arm (31) is mounted on the rotating mechanism (2) and rotates under the drive of the rotating mechanism (2). The telescopic arm (32) is hinged to the end of the fixed arm (31) away from the rotating mechanism (2). The second driver (33) is hinged between the fixed arm (31) and the telescopic arm (32) and is used to drive the telescopic arm (32) to rotate relative to the fixed arm (31).

Images