Unfolding mechanism for barrier plate of roadblock vehicle

Abstract

The unfolding mechanism for the barrier plate of the roadblock vehicle is suitable for being arranged between a vehicle body of the roadblock vehicle and the barrier plate so as to open or close the barrier plate of the roadblock vehicle, and is characterized by comprising a support big arm, an unfolding arm and a driving arm, one end of the support big arm is suitable for being hinged to a vehicle body of the roadblock vehicle, the other end of the support big arm is hinged to one end of the unfolding arm through a first knuckle bearing, and the other end of the unfolding arm is provided with a second knuckle bearing suitable for being hinged to the inner side of a baffle of the roadblock vehicle through the second knuckle bearing. One end of the driving arm is suitable for being hinged to a vehicle body of the roadblock vehicle, and the other end of the driving arm is hinged to the side wall of the support large arm so as to drive the support large arm to rotate.

Description

Technical Field

[0001] This application relates to the field of deployable arm technology, and more particularly to a deployable mechanism for a road barrier vehicle. Background Technology

[0002] Police automatic roadblock vehicles, as a type of mobile and highly efficient special vehicle, are widely used in scenarios such as road safety maintenance, traffic control, and handling emergencies and unexpected situations. When used on-site, the roadblock vehicle can quickly deploy barriers to form a blocking barrier to perform special tasks. The automatic roadblock vehicle has large metal barrier mechanisms installed on both sides of the vehicle's cabin, hinged to the cabin via hinges. The opening and closing of the barriers is achieved through a deployment mechanism, and the smooth deployment and retraction of the barriers significantly impacts the normal operation of the roadblock vehicle. Currently, the support arm of the deployment arm is hinged to the deployment arm via a pin. However, the barriers are subject to many external forces during use, such as downward gravity during deployment and frontal impact forces during operation. These factors can adversely affect the axis of the support arm and the deployment arm, even causing deformation of the axis, which further increases the frictional resistance between the pin and the shaft hole. Summary of the Invention

[0003] In view of this, this application proposes a deployment mechanism for the barrier panels of a roadblock vehicle.

[0004] According to one aspect of this application, a deployment mechanism for a roadblock barrier is provided, which is suitable for being disposed between the body of a roadblock vehicle and the barrier to open or close the barrier of the roadblock vehicle, comprising: a support arm, a deployment arm and a drive arm.

[0005] One end of the support arm is suitable for hinged to the body of the roadblock vehicle, and the other end of the support arm is hinged to one end of the deployable arm through a first joint bearing. The other end of the deployable arm is provided with a second joint bearing suitable for hinged to the inner side of the barrier plate of the roadblock vehicle through the second joint bearing.

[0006] One end of the drive arm is designed to be hinged to the body of the roadblock vehicle, and the other end of the drive arm is hinged to the side wall of the support arm to drive the support arm to rotate.

[0007] In one possible implementation, the end of the support arm connected to the vehicle body is provided with a first pin hinge, and the support arm is adapted to be hinged to the vehicle body through the first pin hinge.

[0008] In one possible implementation, a clearance groove is provided at one end of the support arm that connects to the unfolding arm.

[0009] In one possible implementation, a second pin hinge is provided on the side wall of the support arm, and the drive arm is hinged to the side wall of the support arm through the second pin hinge.

[0010] In one possible implementation, a pulley is provided at the bottom of the support arm, and the pulley and the second pin are hinged to each other on adjacent sides of the support arm; the pulley is suitable for contacting the slide rail inside the vehicle body.

[0011] In one possible implementation, the first joint bearing is a rod-end fisheye joint bearing.

[0012] In one possible implementation, the second joint bearing is a rod-end fisheye joint bearing.

[0013] In one possible implementation, the drive arm is a hydraulic cylinder.

[0014] Beneficial effects: As a connecting bridge between the vehicle body and the deployable arm, the support arm can rotate relative to its hinge point with the vehicle body. When it is necessary to open the barrier, the support arm rotates towards the barrier and drives the deployable arm to move together. Since the other end of the deployable arm is hinged to the barrier, when the support arm drives the deployable arm to rotate, it will push the barrier open outward through the deployable arm. Since the barrier is hinged to the vehicle body, the barrier will rotate outward, thereby opening the barrier. The support arm is hinged to the deploying arm via a first joint bearing, and the deploying arm is hinged to the inner side of the baffle via a second joint bearing. Since the joint bearing is a spherical sliding bearing, its inner spherical axis can swing arbitrarily within a certain tilt angle range relative to the outer spherical axis. During use, even if the baffle is subjected to external forces in different directions, the joint bearing will automatically adjust its tilt angle within its own operating range to adapt to the pin that it is paired with. It can withstand a large load and has the advantages of impact resistance and wear resistance. It can reduce the friction at the connection between the support arm and the deploying arm and avoid friction between the two when the support arm and the deploying arm rotate. While ensuring that the baffle can be opened and closed normally, it improves the working reliability of the deploying mechanism.

[0015] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0016] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0017] Figure 1 This diagram shows the unfolding structure of the barrier deployment mechanism for a road barrier vehicle according to an embodiment of this application.

[0018] Figure 2 A top view of a barrier deployment mechanism for a roadblock vehicle according to an embodiment of this application is shown;

[0019] Figure 3This diagram shows the main structure of the barrier deployment mechanism for a road barrier vehicle according to an embodiment of this application.

[0020] Figure 4 This diagram illustrates the folding structure of the unfolding mechanism for the barrier vehicle's barrier, according to an embodiment of this application.

[0021] Figure 5 A partially enlarged view of the deployment mechanism for the barrier vehicle's barrier, according to an embodiment of this application, is shown.

[0022] Figure 6 A partially enlarged view of the deployment mechanism for the barrier vehicle's barrier, according to an embodiment of this application, is shown.

[0023] Figure 7 A partially enlarged view of the deployment mechanism for the barrier vehicle's barrier, according to an embodiment of this application, is shown.

[0024] Figure 8 A partially enlarged view of the deployment mechanism for the barrier vehicle's barrier, according to an embodiment of this application, is shown.

[0025] Figure 9 This application diagram shows an example of a deployment mechanism for a road barrier vehicle's barrier panels according to an embodiment of this application.

[0026] Figure 10 This diagram illustrates the application of a road barrier vehicle barrier deployment mechanism according to an embodiment of this application. Detailed Implementation

[0027] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0028] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] 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 utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0031] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0032] Figure 1 This diagram shows the unfolding structure of the barrier deployment mechanism for a road barrier vehicle according to an embodiment of this application.

[0033] Figure 2 A top view of a barrier deployment mechanism for a roadblock vehicle according to an embodiment of this application is shown; Figure 3 This diagram shows the main structure of the barrier deployment mechanism for a road barrier vehicle according to an embodiment of this application. Figure 4 This diagram illustrates the folding structure of the deployment mechanism for the barrier vehicle's baffle according to an embodiment of this application. Figure 1 As shown, this type of barrier deployment mechanism is suitable for being installed between the body 800 and the barrier 810 of a barrier vehicle to open the barrier 810. It includes: a support arm 100, a deployment arm 200, and a drive arm 300. One end of the support arm 100 is suitable for hinged to the body 800 of the barrier vehicle, and the other end of the support arm 100 is hinged to one end of the deployment arm 200 through a first joint bearing 900. The other end of the deployment arm 200 is provided with a second joint bearing 700 suitable for hinged to the inner side of the barrier 810 of the barrier vehicle through the second joint bearing 700. One end of the drive arm 300 is suitable for hinged to the body 800 of the barrier vehicle, and the other end of the drive arm 300 is hinged to the side wall of the support arm 100 to drive the support arm 100 to generate rotational movement.

[0034] It should be noted that the support arm 100, acting as a connecting bridge between the vehicle body 800 and the deployable arm 200, allows the support arm 100 to rotate relative to its hinge point with the vehicle body 800. When the barrier 810 needs to be opened, the support arm 100 rotates towards the barrier 810 and moves the deployable arm 200 along with it. Since the other end of the deployable arm 200 is hinged to the barrier 810, when the support arm 100 moves the deployable arm 200 to rotate, it pushes the barrier 810 outward through the deployable arm 200. Since the barrier 810 is hinged to the vehicle body 800, the barrier 810 will rotate outward, thus opening the barrier 810. When the barrier 810 needs to be closed, the support arm 100 rotates towards the side away from the barrier 810 and moves the deployable arm 200 back. The deployable arm 200 then moves the barrier 810 to rotate in the opposite direction, finally fastening the barrier 810 onto the vehicle body 800.

[0035] It should be emphasized that the support arm 100 is hinged to the unfolding arm 200 via the first joint bearing 900, and the unfolding arm 200 is hinged to the inner side of the baffle 810 via the second joint bearing 700. Since the joint bearing is a spherical sliding bearing, its inner spherical axis can swing arbitrarily within a certain tilt angle range relative to the outer spherical axis. This makes the pin installation very convenient. Moreover, in subsequent use, even if the baffle 810 is subjected to external forces in different directions, the joint bearing will automatically adjust its tilt angle within its own operating range to adapt to the pin it is paired with. It can withstand a large load and has the advantages of impact resistance and wear resistance. It can reduce the friction at the connection between the support arm 100 and the unfolding arm 200, and avoid friction between the support arm 100 and the unfolding arm 200 when they rotate. While ensuring that the baffle 810 can be opened and closed normally, it improves the working reliability and service life of the unfolding mechanism.

[0036] In one possible implementation, the main body of the support arm 100 is a rectangular tubular structure. One end of the support arm 100 is provided with a first shaft hole for passing through a first pin 110, and the other end of the support arm 100 is provided with a double clamping plate structure 930, and the double clamping plate structure 930 is provided with a second shaft hole for passing through a second pin 910.

[0037] In one possible implementation, the end of the support arm 100 connected to the roadblock vehicle body 800 is provided with a first pin hinge, and the support arm 100 is adapted to be hinged to the vehicle body 800 via the first pin hinge. It should be noted that connecting the support arm 100 to the roadblock vehicle body 800 via a pin connection ensures that the support arm 100 can rotate in the horizontal plane. Furthermore, as... Figure 8As shown, the first pin hinge portion includes: a first hinge plate 121, a first hinge seat 120, and a first pin 110. The first hinge seat 120 is mounted on one side of the first hinge plate 121 by four screws 122. The cross-section of the first hinge seat 120 is Π-shaped. The first pin 110 passes through the first hinge seat 120 and the first shaft hole of the support arm 100 in sequence, thereby limiting the support arm 100 within the first hinge seat 120 and allowing the support arm 100 to rotate around the first pin 110. A stop bar 111 is vertically provided at one end of the first pin 110 to prevent the first pin 110 from disengaging from the first hinge seat 120.

[0038] In one possible implementation, such as Figure 5 As shown, a clearance groove 160 is provided at one end of the support arm 100 that connects to the unfolding arm 200. It should be noted that, in order to ensure the normal rotation and retraction of the unfolding arm 200 and to avoid interference from the support arm 100 in the retraction of the unfolding arm 200, a clearance groove 160 is provided at one end of the support arm 100 to allow space for the unfolding arm 200. When the unfolding arm 200 is retracted into the vehicle body 800, the distance between it and the support arm 100 is minimized, thereby reducing the volume of the unfolding mechanism and making the structure compact and miniaturized.

[0039] Furthermore, the angle between the plane of the relief groove 160 and the length direction of the support arm 100 is 13°.

[0040] Furthermore, the second pin 910 passes through the second shaft hole of the support arm 100, and a stop bar is provided on the side wall of the second pin 910 to prevent the second pin 910 from disengaging from the support arm 100; the inner spherical surface of the first joint bearing 900 is sleeved on the second pin 910, and the outer spherical surface of the first joint bearing 900 is fixedly connected to one end of the unfolding arm 200.

[0041] In one possible implementation, such as Figure 5 As shown, the main body of the deployable arm 200 is a circular tubular structure, with nuts 210 fixed at both ends. The center of the nut 210 is coaxial with the axis of the deployable arm 200. The screw on the outer spherical surface of the first joint bearing 900 extends into one end of the deployable arm 200 and is threadedly connected to the nut 210 at the end of the deployable arm 200, thereby realizing the hinge connection between the deployable arm 200 and the support arm 100 through the first joint bearing 900.

[0042] Furthermore, the first spherical plain bearing 900 is a rod-end fisheye spherical plain bearing. Furthermore, the model number of the first spherical plain bearing 900 is SA30T / K.

[0043] In one possible implementation, such as Figure 4As shown, the third pin 710 is suitable for being fixed to the inner wall of the baffle 810 by a pin seat, and the length direction of the third pin 710 is perpendicular to the horizontal plane. The inner spherical surface of the second joint bearing 700 is sleeved on the third pin 710. The screw of the outer spherical surface of the second joint bearing 700 extends into the other end of the unfolding arm 200 and is threadedly connected to the nut at the end of the unfolding arm 200, thereby realizing the hinge connection between the unfolding arm 200 and the baffle 810 through the second joint bearing 700.

[0044] Furthermore, the second spherical plain bearing 700 is a rod-end fisheye spherical plain bearing. Furthermore, the model number of the second spherical plain bearing 700 is SA30T / K.

[0045] In one possible implementation, a second pin hinge portion is provided on the side wall of the support arm 100, and the drive arm 300 is hinged to the side wall of the support arm 100 via the second pin hinge portion. Further, as... Figure 7 As shown, the second pin hinge portion includes a second hinge seat 140 and a fourth pin 130. The second hinge seat 140 is disposed on one side of the support arm 100, and its cross-section is shaped like a "Π". The fourth pin 130 passes through the second hinge seat 140. One end of the drive arm 300 is sleeved on the fourth pin 130 and confined within the second hinge seat 140, thereby allowing the drive arm 300 to rotate around the third pin 710. One end of the third pin 710 is provided with a stop bar 131 to prevent the third pin 710 from disengaging from the second hinge seat 140.

[0046] In one possible implementation, one end of the drive arm 300 connected to the vehicle body 800 is hinged to the vehicle body 800 via a third pin hinge, such as... Figure 6 As shown, the third pin hinge portion includes: a second hinge plate 321, a third hinge seat 320, and a fifth pin 310. The third hinge seat 320 is disposed on one side of the second hinge plate 321, and the other side of the second hinge plate 321 is adapted to connect to the side wall of the vehicle body 800. The cross-section of the third hinge seat 320 has a "Π" shaped structure. The fifth pin 310 passes through the third hinge seat 320, and the other end of the drive arm 300 is sleeved on the fifth pin 310 and limited within the third hinge seat 320, thereby allowing the drive arm 300 to rotate around the fifth pin 310 as an axis. One end of the fifth pin 310 is provided with a stop bar 311 to prevent the fifth pin 310 from disengaging from the third hinge seat 320.

[0047] Furthermore, the drive arm 300 uses a hydraulic cylinder. The impact force received by the baffle 810 after it is deployed is transmitted to the vehicle body through the axis of the support arm 100 and the deploying arm 200, thus making the use of the hydraulic cylinder more advantageous.

[0048] In one possible implementation, such as Figure 7As shown, a pulley 400 is provided at the bottom of the support arm 100, and the pulley 400 and the second pin are hinged to each other on adjacent sides of the support arm 100; Figure 9 As shown, the pulley 400 is designed to contact the arc-shaped groove 820 (slide rail) inside the vehicle body 800. The bottom wall inside the vehicle body 800 has an arc-shaped groove 820 that is adapted to the pulley 400. The pulley 400 can be embedded in the arc-shaped groove 820 and slide within it along its shape. The pulley 400 is designed to support the support arm 100, preventing it from tilting due to its own weight and causing friction with the first pin hinge. Simultaneously, the pulley 400 improves the smoothness of rotation of the support arm 100, thus assisting in the opening of the baffle 810.

[0049] Furthermore, such as Figure 7 As shown, the bottom of the support arm 100 is provided with a pulley seat 410, the pulley 400 is located inside the pulley seat 410, and the pulley shaft 420 passes through the pulley 400 and the pulley seat 410 to realize the rotation function of the pulley 400.

[0050] Preferably, the material of the deployable arm 200 and the support arm 100 is Q235. The optimal length ratio of the arm 100 to the deployable arm 200 is 1:0.9.

[0051] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A mechanism for deploying a barrier panel on a roadblock vehicle, suitable for installation between the vehicle body and the barrier panel of a roadblock vehicle to open or close the barrier panel, characterized in that, include: Support boom, outrigger boom and drive boom; One end of the support arm is adapted to be hinged to the body of the roadblock vehicle, and the other end of the support arm is hinged to one end of the deployable arm through a first joint bearing. The other end of the deployable arm is provided with a second joint bearing adapted to be hinged to the inner side of the barrier plate of the roadblock vehicle through the second joint bearing. One end of the drive arm is adapted to be hinged to the body of the roadblock vehicle, and the other end of the drive arm is hinged to the side wall of the support arm to drive the support arm to generate rotational movement.

2. The deployment mechanism for the barrier plate of the roadblock vehicle according to claim 1, characterized in that, The support arm is provided with a first pin hinge at one end connected to the vehicle body, and the support arm is adapted to be hinged to the vehicle body through the first pin hinge.

3. The deployment mechanism for the barrier plate of the road barrier vehicle according to claim 1, characterized in that, The support arm is provided with a clearance groove at one end where it connects to the unfolding arm.

4. The deployment mechanism for the barrier plate of a roadblock vehicle according to claim 1, characterized in that, The support arm has a second pin hinge on its side wall, and the drive arm is hinged to the side wall of the support arm through the second pin hinge.

5. The deployment mechanism for the barrier plate of the road barrier vehicle according to claim 4, characterized in that, The bottom of the support arm is provided with a pulley, and the pulley and the second pin are respectively hinged on the adjacent sides of the support arm; the pulley is suitable for contacting the slide rail inside the vehicle body.

6. The deployment mechanism for the barrier plate of the roadblock vehicle according to claim 1, characterized in that, The first joint bearing is a rod-end fisheye joint bearing.

7. The deployment mechanism for the barrier plate of a roadblock vehicle according to claim 1, characterized in that, The second joint bearing is a rod-end fisheye joint bearing.

8. The deployment mechanism for the barrier plate of a roadblock vehicle according to claim 1, characterized in that, The drive arm is a hydraulic cylinder.

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