Control mechanism capable of sliding leftwards and rightwards, sliding seat assembly and engineering vehicle

Abstract

The utility model provides a control mechanism capable of sliding left and right, a sliding seat assembly and an engineering vehicle, and relates to the field of control mechanisms of engineering machinery, the control mechanism comprises a frame platform, a mounting seat and a control assembly used for controlling an operation vehicle, the control assembly comprises a reversing handle assembly and a reversing rod connected with the reversing handle assembly, the device is characterized in that the reversing rod is fixedly connected with a shifting fork, the shifting fork can synchronously move along with the reversing rod, the frame platform is provided with a connecting plate, the connecting plate is rotationally connected with the frame platform through a rotating shaft parallel to the reversing rod, the connecting plate is connected with an optical shaft matched with the shifting fork, and the optical shaft can rotate around the rotating shaft along with the connecting plate. The optical axis is parallel to the reversing rod and embedded into the shifting fork, and a connecting position used for being hinged to a push-pull cable is further arranged on the connecting plate. In the synchronous sliding process of the seat and the control assembly, the push-pull cable connected with the connecting plate does not slide along with the seat, and therefore the problem that the utilization rate of the peripheral space of the push-pull cable is low due to sliding of the push-pull cable is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the operating mechanism of engineering machinery, and specifically relates to a left and right slidable operating mechanism, a sliding seat assembly and an engineering vehicle. BACKGROUND

[0002] The seat is an indispensable device for each manned vehicle, and the operating mechanism is usually arranged beside the seat. In the field of engineering machinery, such as the field of road rollers, the operator needs to observe the situation of the roller drum of the road roller to the edge of the road at all times during the work process, especially for the road roller with a large width, the centrally placed seat cannot effectively observe the edge situation, so a seat capable of sliding left and right is needed to enable the driver to slide to the two sides to observe. The device can make the seat slide left and right with the maximum size without changing the original operation requirements.

[0003] There are generally three structures in the existing sliding seat:

[0004] The first structure is that the operation part is widened to the same width as the vehicle body, and only the seat can slide. The disadvantage of this structure is that the handle is not consistent in distance from the seat, resulting in inconvenient operation.

[0005] The second structure is that the operation part is an electric control handle without mechanical structure, and the seat slides together. The disadvantage of this structure is that the cost is increased, and the corresponding structure is added to the execution end.

[0006] The third structure is that the operation part and the seat slide together. For example, the utility model patent with the publication number CN221192854U disclosed a road roller operating mechanism in the prior art, the sliding platform can move right or left, which facilitates the driver to approach the edge and reduces the body inclination angle when observing the curb, but the disadvantage is that when the sliding platform moves left and right, the mechanical structure (push-pull soft shaft) also slides, and a large space is occupied when the mechanical structure slides, which affects the arrangement of other mechanical parts in the limited space, and the space utilization rate is low.

[0007] Therefore, there is an urgent need for an operating handle capable of sliding with the sliding platform, but the corresponding mechanical structure such as the push-pull soft shaft (or the push-pull cable) does not slide, which reduces the space occupation of the mechanical structure. UTILITY MODEL CONTENTS

[0008] The utility model provides a left and right slidable operating mechanism and sliding seat assembly to solve the above problems in the prior art, the sliding platform slides without driving the push-pull cable to slide, which is beneficial to improve the utilization rate of the outer peripheral space of the push-pull cable, and the structure is simple and easy to install.

[0009] The utility model discloses a technical scheme that solves the above technical problems as follows: A left-right slidable control mechanism, including frame platform, mounting seat and control assembly for controlling operation vehicle, mounting seat is installed on frame platform and can move synchronously with mounting seat, control assembly is installed on mounting seat and can move synchronously with mounting seat, control assembly includes reversing handle assembly and reversing lever connected with reversing handle assembly, characterized in that, the reversing lever is fixedly connected with a shift fork, the shift fork can move synchronously with the reversing lever, the frame platform is provided with a connecting plate, the connecting plate is rotatably connected with the frame platform through a rotating shaft parallel to the reversing lever, the connecting plate is connected with a light shaft matched with the shift fork, the light shaft can rotate around the rotating shaft with the connecting plate, the light shaft is parallel to the reversing lever and is embedded in the shift fork, the connecting plate is further provided with a connecting position for hingedly connecting a push-pull cable.

[0010] Further, the shift fork has a preset groove depth, so that the shift fork prevents the light shaft from being separated from the shift fork during the process that the shift fork drives the light shaft to swing.

[0011] Further, the push-pull cable is a flexible push-pull cable.

[0012] Further, the connecting plate is provided with an arc-shaped hole, the center of the arc-shaped hole corresponds to the axis of the rotating shaft, a limiting piece is slidably connected in the arc-shaped hole, and the limiting piece is fixed to the frame platform.

[0013] Further, the arc-shaped hole is further provided with a damping pad, and the damping pad is clamped on both sides of the connecting plate and connected through the limiting piece.

[0014] A slidable seat assembly, characterized in that it comprises a seat body and the control mechanism as described above, and the seat body is fixedly installed on the mounting seat.

[0015] An engineering vehicle, characterized in that it comprises the slidable seat assembly as described above, and further comprises a push-pull cable connected with a control system of the engineering vehicle, and the end of the push-pull cable is hingedly connected to the connecting position on the connecting plate.

[0016] The utility model discloses the beneficial effect is:

[0017] 1. The left-right slidable control mechanism is set up, through the shift fork and the light shaft that are set up mutually and cooperate, and the connecting relationship of the shift fork and the reversing lever, the connecting relationship of the light shaft and the connecting plate and the push-pull cable, make the push-pull cable connected with the connecting plate not slide along with the seat and the control assembly synchronous sliding, thereby avoiding the problem that the utilization rate of the outer circumferential space of the push-pull cable is low due to the sliding of the push-pull cable.

[0018] 2. The slidable seat assembly and the engineering vehicle based on the above control mechanism are set up, and also have the beneficial effect as above. DRAWINGS

[0019] Figure 1 is a structural schematic view of the operating mechanism of one embodiment of the present application;

[0020] Figure 2 is a structural schematic view of the mounting seat of one embodiment of the present application (bottom view);

[0021] Figure 3 is a structural schematic view of the frame platform of one embodiment of the present application;

[0022] Figure 4 is a side view structural schematic view of the frame platform of one embodiment of the present application;

[0023] Figure 5 is a structural schematic view of the road roller containing the sliding seat assembly of one embodiment of the present application (only the cab part related to the present application is shown);

[0024] In the figure: 1. frame platform, 2. mounting seat, 3. reversing handle assembly, 4. reversing rod, 5. shift fork, 6. connecting plate, 7. rotating shaft, 8. light shaft, 9. connecting position, 10. arc-shaped hole, 11. limiting piece, 12. seat body, 13. push-pull cable. DETAILED DESCRIPTION

[0025] The principle and features of the present application will be described below, and the embodiments are only used to explain the present application and not to limit the scope of the present application.

[0026] As shown in the accompanying drawings, Figures 1-4 the present embodiment provides a left-right slidable operating mechanism, which comprises a road roller frame platform 1, a mounting seat 2 and an operating assembly for operating the working vehicle, the mounting seat 2 is installed on the frame platform 1 through a sliding rail and can slide left and right on the frame platform 1, the operating assembly is installed on the mounting seat 2 and can move synchronously with the mounting seat 2, the operating assembly comprises a reversing handle assembly 3 and a reversing rod 4 connected with the reversing handle assembly 3, the reversing rod 4 is fixedly connected with a shift fork 5, the shift fork 5 can move synchronously with the reversing rod 4, the frame platform 1 is provided with a connecting plate 6, the connecting plate 6 is rotatably connected with the frame platform 1 through a rotating shaft 7 parallel to the reversing rod 4, the connecting plate 6 is connected with a light shaft 8 matched with the shift fork 5, the light shaft 8 can rotate around the rotating shaft 7 with the connecting plate 6, the light shaft 8 is parallel to the reversing rod 4 and embedded in the shift fork 5, and the connecting plate 6 is further provided with a connecting position 9 for hinging a push-pull cable 13.

[0027] Further, the present embodiment provides a sliding seat assembly, as shown in the accompanying drawings, Figure 5 which comprises a seat body 12 and the above-mentioned operating mechanism, and the seat body 12 is fixedly installed on the mounting seat 2.

[0028] Further, the embodiment provides an engineering vehicle, specifically a road roller, as shown in Figure 5 The road roller shown in the embodiment includes the above-mentioned sliding seat assembly and a push-pull cable 13 connected to the road roller control system, and the end of the push-pull cable 13 is hinged to the connecting position 9 on the connecting plate 6. In addition to the road roller shown in the embodiment, any engineering vehicle that needs to use left and right sliding seats is within the protection scope of the patent, and will not be described one by one here.

[0029] In the working state, when the locking mechanism of the seat (which is prior art, for example, the common locking handle on the market or the positioning handle described in the patent document with the publication number CN221192854U) needs to be adjusted to slide left and right, the driver sits on the seat body 12 and slightly forces the body to the left (or right), so that the mounting seat 2 can slide to the left (or right). During the sliding process, the fork 5 cooperates with the light shaft 8, so that the fork 5 is always forked on the light shaft 8 and can move left and right on the light shaft 8; after adjusting the position of the seat, the seat is relocked. After adjusting the seat to the appropriate position, when the steering handle assembly 3 is operated, the forward and backward swinging of the steering handle assembly 3 can drive the steering rod 4 and the fork 5 to rotate together, so as to drive the light shaft 8 to swing, that is, the light shaft 8 rotates around the rotating shaft 7 through the connecting plate 6, thereby driving the push-pull cable 13 to extend or retract. In the scheme, during the sliding process of the mounting seat 2 relative to the vehicle frame platform 1, the push-pull cable 13 of the vehicle itself does not slide with the mounting seat, that is, the push-pull cable is controlled by the steering handle assembly 3 and is not affected by the seat sliding, and the position of the push-pull cable in the left and right directions is not changed, thereby avoiding the low space utilization caused by the occupation of too much space by the push-pull cable 13.

[0030] In the embodiment, the fork 5 has a preset groove depth, so that the fork 5 drives the light shaft 8 to swing, and the light shaft 8 is prevented from being separated from the fork 5, so that the light shaft 8 is always embedded in the fork 5 and can be driven by the fork 5.

[0031] In a preferred embodiment of the utility model, an arc-shaped hole 10 is formed in the connecting plate 6, the center of the arc-shaped hole 10 corresponds to the axis of the rotating shaft 7, a limiting piece 11 is slidably connected in the arc-shaped hole 10, the limiting piece 11 is fixed to the vehicle frame platform 1, and a damping pad 14 is further arranged at the arc-shaped hole 10, the damping pad 14 is clamped on both sides of the connecting plate 6 and connected through the limiting piece 11, and is used for generating a certain damping effect on the rotating connecting plate 6, so as to make the control of the push-pull cable 13 by the steering handle assembly 3 more stable. The limiting piece of the embodiment specifically adopts a bolt structure, the bolt penetrates through the two damping pads and the arc-shaped hole 10 and is fixedly connected to the fixed seat of the vehicle frame platform 1.

Claims

1. A left and right slidable steering mechanism, comprising a frame platform (1), a mounting seat (2) and a steering assembly for steering a working vehicle, the mounting seat (2) being slidably mounted on the frame platform (1), the steering assembly being mounted on the mounting seat (2) and capable of moving synchronously with the mounting seat (2), the steering assembly comprising a reversing handle assembly (3) and a reversing lever (4) connected with the reversing handle assembly (3), characterized in that, The reversing lever (4) is fixedly connected with a shift fork (5), the shift fork (5) can move synchronously with the reversing lever (4), the frame platform (1) is provided with a connecting plate (6), the connecting plate (6) is rotatably connected with the frame platform (1) through a rotating shaft (7) parallel to the reversing lever (4), the connecting plate (6) is connected with a light shaft (8) matched with the shift fork (5), the light shaft (8) can rotate with the connecting plate (6) around the rotating shaft (7), the light shaft (8) is parallel to the reversing lever (4) and embedded in the shift fork (5), and the connecting plate (6) is further provided with a connecting position (9) for hingedly connecting a push-pull cable (13).

2. The left and right slidable steering mechanism according to claim 1, wherein The shift fork (5) has a preset groove depth, so that the light shaft (8) is prevented from being separated from the shift fork (5) in the process that the shift fork (5) drives the light shaft (8) to swing.

3. The left and right slidable steering mechanism according to claim 1, wherein The push-pull cable (13) is a flexible push-pull cable.

4. The left and right slidable steering mechanism according to claim 1, wherein An arc-shaped hole (10) is formed in the connecting plate (6), a center of the arc-shaped hole (10) corresponds to an axis of the rotating shaft (7), a limiting piece (11) is slidably connected in the arc-shaped hole (10), and the limiting piece (11) is fixed with the frame platform (1).

5. The left and right slidable steering mechanism according to claim 4, wherein A damping pad (14) is further arranged at the arc-shaped hole (10), the damping pad (14) is clamped on both sides of the connecting plate (6) and connected through the limiting piece (11).

6. A reclining seat assembly characterized by, The sliding seat assembly comprises a seat body (12) and the operating mechanism as claimed in any one of claims 1-5, and the seat body (12) is fixedly installed on the mounting seat (2).

7. An engineering vehicle characterized by, The sliding seat assembly as claimed in claim 6 further comprises a push-pull cable (13) connected with a control system of the engineering vehicle, and the push-pull cable (13) is hingedly connected to the connecting position (9) on the connecting plate (6).

8. The work vehicle of claim 7, characterized in that, The engineering vehicle is a road roller. The engineering vehicle is a road roller.

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