Lifting mechanism for guardrail breakdown van

Abstract

The utility model discloses a lifting mechanism for a guardrail breakdown van, which belongs to the technical field of guardrail breakdown van, and comprises a lifting guide rail, a lifting guide rail and a follow-up frame assembly, the lifting guide rail is arranged on the guardrail breakdown van, and a guide component is arranged on the lifting guide rail; the lifting guide rail is slidably mounted on the guide assembly. A lifting oil cylinder is hinged to the bottom of an inner cavity of the lifting guide rail. The follow-up frame assembly is installed in the sliding way in a sliding mode. The lifting guide rail can slide on the lifting guide rail under the action of the lifting oil cylinder so as to change the height position of the lifting guide rail, and the follow-up frame assembly can slide along the lifting guide rail under the action of the lifting oil cylinder so as to change the height position of the follow-up frame assembly. And the height of the follow-up frame assembly is also changed, so that the lifting stroke range of the follow-up frame assembly is the total lifting stroke of the lifting oil cylinder and the lifting oil cylinder, and the whole lifting mechanism is compact and small.

Description

Technical Field

[0001] This utility model relates to the technical field of guardrail repair vehicles, specifically to a lifting mechanism for guardrail repair vehicles. Background Technology

[0002] Guardrail repair vehicles are key equipment used in the maintenance of highways and municipal roads for the rapid repair of deformed or damaged guardrails. Their core function relies on the precise positioning and operation of the guardrail posts by the pile-driving and pulling assembly. This assembly needs to pull the damaged guardrail posts from the roadside, then lift new posts and drive them into the roadside. Therefore, a lifting mechanism is required to drive the pile-driving and pulling assembly up and down. Utility Model Content

[0003] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a lifting mechanism for guardrail repair vehicles. By setting up lifting guide rails, lifting guide rails, and follower frame assemblies, a lifting mechanism with a compact structure and a large stroke is formed to drive the lifting and lowering of pile driving and pulling components.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: This utility model provides a lifting mechanism for a guardrail repair vehicle, comprising:

[0005] A lifting guide rail is installed on the guardrail repair vehicle. The lifting guide rail is equipped with a guide component and a lifting cylinder is hinged to the lifting guide rail.

[0006] A lifting guide rail is slidably mounted on a guide assembly. The piston rod of the lifting cylinder is hinged to the lifting guide rail. Two symmetrical slide rails are provided on the inner side of the lifting guide rail. A lifting cylinder is hinged to the bottom of the inner cavity of the lifting guide rail.

[0007] The follower frame assembly is slidably installed in the slide rail, and the piston rod of the lifting cylinder is hinged to the follower frame assembly.

[0008] Preferably, the lifting guide rail includes:

[0009] The two first side plates are parallel.

[0010] Multiple stiffening plates, the two ends of which are respectively welded to two first side plates;

[0011] A first base plate is welded to two first side plates and is perpendicular to the first side plates, and the guide assembly is fixed to the first base plate.

[0012] Preferably, the guide component includes:

[0013] The outer sliding plate is raised and positioned on the side of the first base plate away from the first side plate;

[0014] A pressure plate is disposed on the side of the lifting outer slide plate away from the first bottom plate;

[0015] A groove is formed between the lifting outer slide plate and the pressure plate, and the side of the lifting guide rail is provided with an edge that is slidably installed in the groove.

[0016] Preferably, a nylon plate is fixed to the side of the pressure plate near the edge.

[0017] Preferably, an adjusting pad is provided between the nylon plate and the lifting outer slide plate, and the lifting outer slide plate, the adjusting pad, the nylon plate and the pressure plate are fixedly connected by bolts.

[0018] Preferably, the follower frame assembly includes:

[0019] frame;

[0020] Two sliding parts are symmetrically fixed on both sides of the frame and slide in cooperation with two slide rails respectively;

[0021] The second base plate, fixed to the frame and located outside the lifting guide rail, is used to install the pile driving and extraction components.

[0022] Preferably, the frame comprises:

[0023] Two second side plates are parallel to each other, and multiple first weight-reducing holes are provided on the side plates;

[0024] Multiple first connecting plates, with each end of the first connecting plate welded to two second side plates respectively.

[0025] Preferably, the sliding part includes:

[0026] U-shaped channel steel is welded to the frame;

[0027] Two long strip-shaped nylon blocks are fixed on both sides of the U-shaped channel steel, and the nylon blocks slide in conjunction with the slide rail.

[0028] Preferably, the second base plate is rectangular and welded to the frame. The second base plate has multiple positioning holes for installing the pile driving and pulling components, and a second weight reduction hole is also provided on the second base plate.

[0029] Preferably, the lifting guide rail includes two parallel I-beams and multiple second connecting plates, with the two ends of the second connecting plates welded to the two I-beams respectively.

[0030] The beneficial effects of this utility model are as follows:

[0031] The lifting guide rail designed in this utility model can slide on the lifting guide rail under the action of the lifting cylinder, thereby changing the height position of the lifting guide rail. The follower frame assembly can slide along the lifting guide rail under the action of the lifting cylinder, thereby changing the height position of the follower frame assembly. Since the height of the follower frame assembly changes along with the height of the lifting guide rail, the lifting stroke range of the follower frame assembly is the total lifting stroke of the lifting cylinder and the lifting cylinder itself. This makes the overall lifting mechanism relatively compact and small. The lifting guide rail uses I-beams as the main body and is connected by welding with a second connecting plate. The design meets the strength requirements of the pile driving and extraction components without requiring custom production, thus saving manufacturing costs. The pressure plate, nylon plate, adjusting pad, and lifting outer slide plate in the guide component are stacked sequentially and locked with bolts. The nylon plate and the lifting outer slide plate cooperate to form a sliding groove, and the lifting guide rail is slidably installed on the sliding groove, simplifying the processing and assembly process. The nylon plate reduces wear between the edges and the pressure plate, extending the service life of the guide component. Compared with the traditional design, the second base plate is longer, which gives the pile driving and extraction components a greater initial position adjustment and positioning capability and a wider range of applications. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a rear-view perspective view of the overall structure of a guardrail repair vehicle lifting mechanism provided in an embodiment of this utility model.

[0034] Figure 2 This is a front-view perspective view of the overall structure of a guardrail repair vehicle lifting mechanism provided in an embodiment of this utility model.

[0035] Figure 3 A top view of the overall structure of a guardrail repair vehicle lifting mechanism provided in an embodiment of this utility model.

[0036] Figure 4 This is a front-view perspective perspective view of the lifting guide rail in a guardrail repair vehicle lifting mechanism provided for an embodiment of this utility model.

[0037] Figure 5 This is a rear-view perspective view of the lifting guide rail in a guardrail repair vehicle lifting mechanism provided for an embodiment of this utility model.

[0038] Figure 6 This is a schematic diagram of the lifting guide rail in a lifting mechanism for a guardrail repair vehicle, provided as an embodiment of the present utility model.

[0039] Figure 7 This is a structural schematic diagram of the follower frame assembly in a lifting mechanism for a guardrail repair vehicle, provided as an embodiment of the present utility model.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Lifting guide rail; 11. First side plate; 12. Rib plate; 13. First bottom plate; 14. Lifting outer slide plate; 15. Pressure plate; 16. Nylon plate; 17. Adjusting pad; 2. Lifting cylinder; 3. Lifting guide rail; 31. I-beam; 32. Second connecting plate; 4. Slide rail; 5. Lifting cylinder; 6. Follower frame assembly; 61. Frame; 611. Second side plate; 612. First connecting plate; 613. First weight reduction hole; 62. Second bottom plate; 621. Positioning hole; 622. Second weight reduction hole; 63. U-shaped channel steel; 64. Nylon block. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0043] Example 1:

[0044] like Figures 1 to 7 As shown in Embodiment 1 of this utility model, a lifting mechanism for a guardrail repair vehicle mainly includes a lifting guide rail 1, a lifting guide rail 3, and a follower frame. The lifting guide rail 1 is mounted on the guardrail repair vehicle body and includes two parallel first side plates 11. Two transverse stiffeners 12 are welded between the two first side plates 11, with their ends welded to the two first side plates 11 respectively. Two first bottom plates 13 are also welded to the two first side plates 11, with guide components symmetrically arranged on both sides of the first bottom plates 13. The first side plates 11, stiffeners 12, and first bottom plates 13 are welded together, resulting in a stable structure.

[0045] The edges on both sides of the lifting guide rail 3 are slidably mounted on the guide components on both sides of the first base plate 13. The cylinder body of the lifting cylinder 2 is hinged to the stiffening plate 12, and the piston rod of the lifting cylinder 2 is hinged to the lifting guide rail 3. In this way, when the piston rod of the lifting cylinder 2 moves in the cylinder body, it can drive the lifting guide rail 3 to slide on the lifting guide rail 1, thereby changing the height position of the lifting guide rail 3.

[0046] like Figure 6As shown, the lifting guide rail 3 uses two I-beams 31 as the main support structure. The two I-beams 31 are placed in parallel, leaving space between them for installing the follower frame assembly 6. Multiple second connecting plates 32 are welded to the two I-beams 31 at both ends, completing the fixed connection between the two I-beams 31. The two edges of the I-beams 31 are precisely embedded in the guide assembly, forming a stable sliding guide mechanism, giving the lifting guide rail 3 the freedom to slide along the guide assembly.

[0047] like Figure 3 As shown, the inner sides of the two I-beams 31 form a slide rail 4, and the follower frame assembly 6 is slidably installed in the slide rail 4. The bottom of the lifting guide rail 3 is hinged to the cylinder body of the lifting cylinder 5, and the piston rod of the lifting cylinder 5 is hinged to the follower frame assembly 6 by a pin. Therefore, when the piston rod of the lifting cylinder 5 moves in the cylinder body, it can drive the follower frame assembly 6 to move in the slide rail 4 of the lifting guide rail 3.

[0048] With the above configuration, when the lifting cylinder 2 extends or retracts, it drives the lifting guide rail 3 to move up and down along the lifting guide rail 1. At this time, the lifting cylinder 5 and the follower frame assembly 6 move up and down with the lifting guide rail 3. The lifting cylinder 5, which is hinged to the bottom of the lifting guide rail 3, can drive the follower frame assembly 6 to achieve secondary lifting and lowering along the slide rail 4. This dual lifting structure makes the total stroke of the follower frame assembly 6 equal to the sum of the strokes of the two cylinders, providing a wide range of height adjustment capabilities within a limited space, which can meet the lifting range requirements of the pile driving and pulling components.

[0049] Example 2:

[0050] Based on Embodiment 1, this utility model proposes Embodiment 2. For example... Figure 4 and Figure 5 As shown, the first base plate 13 of the lifting guide rail 1 of this utility model mainly includes an outer lifting slide plate 14 and a pressure plate 15. The outer lifting slide plate 14 and the pressure plate 15 are fixed to the first base plate 13 of the lifting guide rail 1 by bolts. A groove is formed between the pressure plate 15 and the outer lifting slide plate 14. The edge of the I-beam 31 is located in the groove, thus realizing the sliding connection between the lifting guide rail 3 and the lifting guide rail 1.

[0051] To further improve the performance of the guide assembly, this invention includes a wear-resistant nylon plate 16 between the pressure plate 15 and the lifting outer slide plate 14. The nylon plate 16 has self-lubricating properties, which can significantly reduce the wear of the pressure plate 15. Simultaneously, an adjusting shim 17 is provided between the nylon plate 16 and the lifting outer slide plate 14. The adjusting shim 17 is composed of steel sheets of different thicknesses; by selecting different thickness combinations, the gap of the slide groove can be precisely adjusted to match the edge thickness of the I-beam 31.

[0052] Example 3:

[0053] like Figure 7As shown, based on Embodiments 1 and 2, the follower frame assembly 6 designed in this utility model specifically includes a frame 61, two sliding parts symmetrically fixed on both sides of the frame 61, and a second base plate 62 fixed in front of the frame 61. The pile driving and pulling assembly is fixedly installed on the second base plate 62. The interior of the frame 61 has space for the installation of the lifting cylinder 5, and the top of the frame 61 is hinged to the piston rod of the lifting cylinder 5 by a pin. In this way, when the lifting cylinder 5 extends or retracts, the sliding parts on both sides of the frame 61 slide in the slide rail 4, thereby changing the height of the second base plate 62 and the pile driving and pulling assembly.

[0054] The frame 61 of this utility model includes two parallel second side plates 611. Multiple first weight-reducing holes 613 are formed on the two second side plates 611. The first weight-reducing holes 613 are circular, reducing the overall weight while maintaining strength. The two ends of three first connecting plates 612 are welded to the two second side plates 611 respectively. Simultaneously, a second base plate 62 is welded to the side of the second side plates 611 away from the first connecting plates 612. The second side plates 611, first connecting plates 612, and second base plate 62 are welded to form a stable frame 61 structure. The sliding part uses a U-shaped channel steel 63 as its main body. The U-shaped channel steel 63 is welded to the second side plates 611, and two elongated nylon blocks 64 are bolted to both sides of the U-shaped channel steel 63. The nylon blocks 64 can be replaced individually after wear. Figure 3 As shown, the nylon block 64 fits against the inner wall of the slide rail 4, realizing the sliding connection between the follower frame assembly 6 and the lifting guide rail 3.

[0055] The second base plate 62 is rectangular, with its length being two to three times its width. Multiple positioning holes 621 are provided on both sides to accommodate various specifications of pile driving and extraction components. It also allows for adjustments to the installation height of the pile driving and extraction components within a certain range, thereby changing their initial height position. Two rounded rectangular second weight-reduction holes 622 are provided on the second base plate 62 to reduce the overall weight.

[0056] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A lifting mechanism for a guardrail repair vehicle, characterized in that, include: A lifting guide rail is installed on the guardrail repair vehicle. The lifting guide rail is equipped with a guide component and a lifting cylinder is hinged to the lifting guide rail. A lifting guide rail is slidably mounted on a guide assembly. The piston rod of the lifting cylinder is hinged to the lifting guide rail. Two symmetrical slide rails are provided on the inner side of the lifting guide rail. A lifting cylinder is hinged to the bottom of the inner cavity of the lifting guide rail. The follower frame assembly is slidably installed in the slide rail, and the piston rod of the lifting cylinder is hinged to the follower frame assembly.

2. The lifting mechanism for a guardrail repair vehicle as described in claim 1, characterized in that, The lifting guide rail includes: The two first side plates are parallel to each other. Multiple stiffening plates, the two ends of which are respectively welded to two first side plates; A first base plate is welded to two first side plates and is perpendicular to the first side plates, and the guide assembly is fixed to the first base plate.

3. The lifting mechanism for a guardrail repair vehicle as described in claim 2, characterized in that, The guiding component includes: The outer sliding plate is raised and positioned on the side of the first base plate away from the first side plate; A pressure plate is disposed on the side of the lifting outer slide plate away from the first bottom plate; A groove is formed between the lifting outer slide plate and the pressure plate, and the side of the lifting guide rail is provided with an edge that is slidably installed in the groove.

4. The lifting mechanism for a guardrail repair vehicle as described in claim 3, characterized in that, A nylon plate is fixed to the side of the pressure plate near the edge.

5. The lifting mechanism for a guardrail repair vehicle as described in claim 4, characterized in that, An adjusting pad is provided between the nylon plate and the lifting outer slide plate, and the lifting outer slide plate, the adjusting pad, the nylon plate and the pressure plate are fixedly connected by bolts.

6. The lifting mechanism for a guardrail repair vehicle as described in claim 1, characterized in that, The follower frame assembly includes: frame; Two sliding parts are symmetrically fixed on both sides of the frame and slide in cooperation with two slide rails respectively; The second base plate, fixed to the frame and located outside the lifting guide rail, is used to install the pile driving and extraction components.

7. A lifting mechanism for a guardrail repair vehicle as described in claim 6, characterized in that, The framework includes: Two second side plates are parallel to each other, and multiple first weight-reducing holes are provided on the side plates; Multiple first connecting plates, with each end of the first connecting plate welded to two second side plates respectively.

8. A lifting mechanism for a guardrail repair vehicle as described in claim 6, characterized in that, The sliding part includes: U-shaped channel steel is welded to the frame; Two long strip-shaped nylon blocks are fixed on both sides of the U-shaped channel steel, and the nylon blocks slide in conjunction with the slide rail.

9. A lifting mechanism for a guardrail repair vehicle as described in claim 6, characterized in that, The second base plate is rectangular and welded to the frame. The second base plate has multiple positioning holes for installing the pile driving and pulling components, and a second weight reduction hole is also provided on the second base plate.

10. A lifting mechanism for a guardrail repair vehicle as described in claim 1, characterized in that, The lifting guide rail includes two parallel I-beams and multiple second connecting plates, with the two ends of the second connecting plates welded to the two I-beams respectively.

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