Multi-stage telescopic roadblock machine

Abstract

The utility model discloses a multistage telescopic roadblock machine which comprises two fixing frames, moving frames are arranged on the inner sides of the two fixing frames, each moving frame comprises a square block, triangular blocks are fixedly arranged on the two sides of the square block, a round hole groove is formed in the inner side of the square block, a plurality of moving wheels are arranged below the square block, and the moving wheels are connected with the triangular blocks through rotating shafts. A motor mounting groove is formed in one end of the square block, a lead screw motor is arranged in the motor mounting groove and connected with the square block through a screw, a trapezoidal mounting plate is fixedly arranged at the other end of the square block, and a circular ring is arranged on the side face of the trapezoidal mounting plate; the utility model has the advantages of simple structure and strong stability, and the power mechanism has smaller volume and longer telescopic length.

Description

Technical Field

[0001] The utility model belongs to the technical field of roadblock machine manufacturing, in particular to a multi-stage telescopic roadblock machine. Background Art

[0002] According to their protective performance, roadblocks can be divided into double-sided anti-collision roadblocks and single-sided anti-collision roadblocks. Both types of roadblocks rely on hydraulic energy as power to achieve the lifting and lowering function of the flip body. Their main purpose is to provide strong security protection for key prevention departments such as troops, prisons, road checkpoints, warehouses, and docks, and effectively prevent unauthorized vehicles from forcibly breaking in. This type of roadblock is very practical, reliable and safe, providing a solid barrier for various places.

[0003] Common roadblock machines usually use hydraulic cylinders as power sources and have great driving force. However, when the hydraulic cylinder is used as the power source, the extension length of the roadblock machine cannot exceed the length of the hydraulic cylinder. The longer the hydraulic cylinder is, the larger the size is, and the more equipment length and volume it occupies. At the same time, the hydraulic cylinder itself also occupies a certain length of the equipment, which further reduces the retraction stroke of the roadblock machine. Utility Model Content

[0004] The utility model aims to provide a multi-stage telescopic roadblock machine in order to solve the problems of large volume of power mechanism of common roadblock machine and short telescopic length.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: it comprises two fixed frames, each of which has a movable frame inside, the movable frame comprises a square block, triangular blocks are fixedly provided on both sides of the square block, a circular hole groove is provided on the inner side of the square block, a plurality of movable wheels are provided under the square block, the movable wheels are connected to the triangular block through a rotating shaft, a motor mounting groove is provided at one end of the square block, a screw motor is provided in the motor mounting groove, the screw motor is connected to the square block through screws, a trapezoidal mounting plate is fixedly provided at the other end of the square block, and a circular ring is provided on the side of the trapezoidal mounting plate.

[0006] Furthermore, a screw rod is fixedly provided on the inner side of the fixing frame, one end of the screw rod is located on the inner side of the circular hole groove, and the screw rod motor is located on the outer side of the screw rod.

[0007] Furthermore, a square notch is provided at the bottom of the fixing frame, a trapezoidal guide rail is provided inside the square notch, and one end of the trapezoidal guide rail is connected to the fixing frame by a screw.

[0008] Furthermore, the moving wheel is designed to be concave in the middle, and two inclined surfaces are provided on the inner side of the moving wheel, and the inclined surfaces are connected to the side surfaces of the trapezoidal guide rail.

[0009] Furthermore, a plug-in column is provided on the inner side of the circular ring, and the plug-in column and the circular ring are respectively connected to the two movable frames by screws.

[0010] Furthermore, the two trapezoidal guide rails are connected via a snap-fit ​​connection.

[0011] Beneficial effects: The utility model has reasonable design and has the following beneficial effects:

[0012] In the solution of the utility model, the screw motor is started to push the moving frame to one side, and the moving frame moves along the trapezoidal guide rail on the inner side of the square notch through the moving wheel until the plug-in column is aligned with the circular ring and plugged in to connect the two moving frames. When the moving frame is retracted, the screw rod is received in the circular hole groove of the moving frame to avoid affecting the retracted length of the moving frame, while occupying a smaller volume of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a cross-sectional view of the structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the local structure of the mobile frame of the utility model.

[0016] In the figure: 1-fixed frame, 2-mobile frame;

[0017] 11-screw, 12-square notch, 13-trapezoidal guide rail, 21-square block, 22-triangular block, 23-circular hole groove, 24-moving wheel, 25-motor mounting groove, 26-screw motor, 27-trapezoidal mounting plate, 28-circular ring, 29 plug-in column. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Combination Figures 1 to 3 A multi-stage telescopic roadblock machine shown in the figure includes two fixed frames 1, and a moving frame 2 is provided inside the two fixed frames 1. The moving frame 2 includes a square block 21, and triangular blocks 22 are fixedly provided on both sides of the square block 21. A circular hole groove 23 is provided on the inner side of the square block 21. A plurality of moving wheels 24 are provided under the square block 21. The moving wheels 24 are connected to the triangular block 22 through a rotating shaft. A motor mounting groove 25 is provided at one end of the square block 21, and a screw motor 26 is provided in the motor mounting groove 25. The screw motor 26 is connected to the square block 21 through screws. A trapezoidal mounting plate 27 is fixedly provided at the other end of the square block 21, and a circular ring 28 is provided on the side of the trapezoidal mounting plate 27.

[0020] A screw rod 11 is fixedly arranged inside the fixed frame 1, one end of the screw rod 11 is located inside the circular hole 23, and the screw motor 26 is located outside the screw rod 11. When the mobile frame 2 is retracted toward the inside of the fixed frame 1, the screw rod 11 enters the circular hole 23.

[0021] A square notch 12 is provided at the bottom of the fixed frame 1, a trapezoidal guide rail 13 is provided inside the square notch 12, one end of the trapezoidal guide rail 13 is connected to the fixed frame 1 by screws, and the mobile frame 2 moves along the direction of the trapezoidal guide rail 13 inside the square notch 12 through the moving wheels 24;

[0022] The moving wheel 24 is designed to be concave in the middle, and two inclined surfaces are provided on the inner side of the moving wheel 24, and the inclined surfaces are connected to the side surfaces of the trapezoidal guide rail 13, so that the contact area between the concave moving wheel 24 and the trapezoidal guide rail 13 is larger;

[0023] A plug-in column 29 is provided on the inner side of the circular ring 28. The plug-in column 29 and the circular ring 28 are respectively connected to the two mobile racks 2 by screws. After the plug-in column 29 and the circular ring 28 are aligned and plugged, the two mobile racks 2 are connected;

[0024] The two trapezoidal guide rails 13 are connected by snap fastening, so that the two trapezoidal guide rails 13 and the two fixing frames 1 form a whole.

[0025] Working principle: When the utility model is in use, the screw motor is started to push the mobile frame to one side, and the mobile frame moves along the trapezoidal guide rail on the inner side of the square notch through the moving wheel until the plug-in column is aligned with the circular ring and plugged in to connect the two mobile frames. When the mobile frame is retracted, the screw is retracted into the circular hole groove of the mobile frame to avoid affecting the retracted length of the mobile frame.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A multi-stage telescopic roadblock machine, comprising two fixed frames (1), each of which has a movable frame (2) disposed inside the two fixed frames (1), characterized in that: The moving frame (2) comprises a square block (21), triangular blocks (22) are fixedly provided on both sides of the square block (21), a circular hole groove (23) is provided on the inner side of the square block (21), a plurality of moving wheels (24) are provided below the square block (21), the moving wheels (24) are connected to the triangular block (22) through a rotating shaft, a motor mounting groove (25) is provided at one end of the square block (21), a screw motor (26) is provided in the motor mounting groove (25), the screw motor (26) is connected to the square block (21) through screws, and a trapezoidal mounting plate (27) is fixedly provided at the other end of the square block (21), and a circular ring (28) is provided on the side of the trapezoidal mounting plate (27).

2. A multi-stage telescopic roadblock machine according to claim 1, characterized in that: A screw rod (11) is fixedly provided on the inner side of the fixing frame (1), one end of the screw rod (11) is located on the inner side of the circular hole groove (23), and the screw rod motor (26) is located on the outer side of the screw rod (11).

3. A multi-stage telescopic roadblock machine according to claim 2, characterized in that: The bottom of the fixing frame (1) is provided with a square notch (12), the inner side of the square notch (12) is provided with a trapezoidal guide rail (13), and one end of the trapezoidal guide rail (13) is connected to the fixing frame (1) by means of screws.

4. A multi-stage telescopic roadblock machine according to claim 3, characterized in that: The moving wheel (24) is designed to be concave in the middle, and two inclined surfaces are provided on the inner side of the moving wheel (24), and the inclined surfaces are connected to the side surfaces of the trapezoidal guide rail (13).

5. The multi-stage telescopic roadblock machine according to claim 4, characterized in that: An inserting column (29) is provided on the inner side of the circular ring (28), and the inserting column (29) and the circular ring (28) are respectively connected to the two movable frames (2) by screws.

6. The multi-stage telescopic roadblock machine according to claim 5, characterized in that: The two trapezoidal guide rails (13) are connected via a buckle.

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