A tram intrusion detection device

Abstract

The present invention provides a tram intrusion detection device, comprising a first ruler and a second ruler which are stacked up and down and hinged at one end, the first ruler and the second ruler are both hollow structures, and the free ends of the first ruler and the second ruler are respectively provided with a retractable first pull rod and a second pull rod, the free ends of the first pull rod and the second pull rod are respectively inserted with a first fixing rod and a second fixing rod, and the bottom extension ends of the first fixing rod and the second fixing rod are both clamped in the track groove of the tram groove rail; a level bubble for horizontal correction is embedded on the upper surface of the first ruler, and a detection compass is fixedly arranged at the hinge point, the pointer on the detection compass is fixedly connected to the second ruler, and the pointer displays the rotation angle accordingly with the rotation of the second ruler. The detection device has a delicate structure, is easy to carry, is strong and durable, has accurate detection, can intuitively and quickly display the detection results, is easy to operate, and has good practicality.

Description

Technical Field

[0001] The invention relates to a detection device, in particular to a tram intrusion detection device, and belongs to the technical field of tram emergency rescue equipment. Background Art

[0002] As a new type of rail transit, modern trams have developed rapidly due to their advantages such as low cost, low pollution, and high capacity, and have become an important supplementary mode of public transportation. However, trams belong to a mixed right-of-way system. During operation, they may encounter situations where social vehicles intrude into the limit. In order to ensure the punctuality of operation and the smooth flow of traffic, repair personnel or drivers must quickly determine whether the tram can safely pass through the intrusion area. However, relying solely on visual judgment or on-site measurement with a ruler is prone to errors and has the defect of causing hidden dangers of secondary safety accidents; or using precise distance measuring equipment for measurement, which is time-consuming and labor-intensive, has the defect of affecting transportation efficiency, and will cause unnecessary economic losses. Therefore, how to overcome the defects of the prior art and provide a convenient tram intrusion detection device that can accurately detect the intrusion distance and quickly give the detection results has become a technical problem that needs to be solved urgently by technical personnel in this field. Summary of the invention

[0003] In view of the above defects or improvement needs of the prior art, the present invention provides a tram intrusion detection device, which has the advantages of simple structure, easy to carry, easy to operate, accurate detection and intuitive and fast display.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] The present invention discloses a tram intrusion detection device, comprising a first ruler and a second ruler which are stacked up and down and movably hinged at one end, the first ruler and the second ruler are both hollow structures, and the free ends of the first ruler and the second ruler are respectively provided with a retractable first pull rod and a second pull rod, the free ends of the first pull rod and the second pull rod are respectively penetrated with a first fixing rod and a second fixing rod, the bottom extended ends of the first fixing rod and the second fixing rod are both clamped in the rail groove of the tram groove rail; a level bubble for horizontal correction is embedded on the upper surface of the first ruler, a detection compass is fixedly arranged at the hinge point, a pointer on the detection compass is fixedly connected to the second ruler, and the pointer displays the rotation angle accordingly with the rotation of the second ruler.

[0006] Furthermore, according to the tram intrusion detection device of the present invention, a telescopic pull rod for detecting the longitudinal intrusion height is fixedly provided on the side of the second ruler close to the hinge point.

[0007] Furthermore, according to the tram intrusion detection device of the present invention, the fixed end of the telescopic pull rod is also provided with a 90° rotation limit slot for rapid positioning.

[0008] Furthermore, according to the tram intrusion detection device of the present invention, the telescopic length of the telescopic pull rod is 45cm-315cm.

[0009] Furthermore, according to the tram intrusion detection device of the present invention, the first ruler and the second ruler have the same length, which is 52 cm.

[0010] Furthermore, according to the tram intrusion detection device of the present invention, the lengths of the first pull rod and the second pull rod are also the same, both of which are 51 cm.

[0011] Furthermore, according to the tram intrusion detection device of the present invention, the maximum measuring lengths of the first ruler and the first pull rod (after stretching), and the second ruler and the second pull rod are the same, both of which are 100 cm.

[0012] Furthermore, according to the tram intrusion detection device of the present invention, the first ruler, the first pull rod, the second ruler and the second pull rod are all made of corrosion-resistant aluminum-magnesium alloy.

[0013] Furthermore, according to the tram intrusion detection device of the present invention, the first fixing rod and the second fixing rod are both cylindrical steel pipes with a diameter of 0.5 cm.

[0014] Furthermore, according to the tram intrusion detection device of the present invention, the free end surfaces of the first pull rod and the second pull rod are respectively provided with screw holes, and fastening screws pass through the screw holes to lock and fix the first fixing rod and the second fixing rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The invention provides a tram intrusion detection device, which is suitable for trams with a body width not exceeding 2650mm. The detection device has a telescopic structure, is easy to carry, has a delicate structure, is strong and durable, mainly detects and judges the distance of intrusion objects in the horizontal and vertical directions, has accurate detection and can intuitively and quickly display the detection results through the color area corresponding to the compass needle, is easy to operate, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of an embodiment of the present invention in an extended state;

[0018] Figure 2 is a top view of an embodiment of the present invention in an extended state;

[0019] Figure 3 is a bottom view of an embodiment of the present invention in an extended state;

[0020] Figure 4 is a left side view of an embodiment of the present invention;

[0021] Figure 5 This is a front view of the embodiment of the present invention in a retracted state (without a fixing rod);

[0022] Figure 6 is a top view of the embodiment of the present invention in a contracted state;

[0023] Figure 7 It is a left side view of the embodiment of the present invention when no fixing rod is provided;

[0024] Figure 8 It is a schematic diagram of the use state of an embodiment of the present invention;

[0025] The components are described as follows:

[0026] 10. First ruler; 11. First pull rod; 12. First fixed rod; 13. Level bubble; 20. Second ruler; 21. Second pull rod; 22. Second fixed rod; 23. Telescopic pull rod; 30. Hinge point; 31. Compass; 32. Pointer; 40. Fastening screws. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. Examples of the embodiments are shown in the accompanying drawings, and the specific embodiments described in the following embodiments of the present invention are only exemplary embodiments of the present invention, intended to explain the present invention, and are not intended to limit the present invention.

[0028] The present invention provides a tram intrusion detection device, which is suitable for trams with a body width not exceeding 2650mm (for example, the tram PM06700 body produced by CRRC Nanjing Puzhen Rolling Stock Co., Ltd., but not limited thereto), such as Figure 5 As shown, it includes a first ruler 10 and a second ruler 20 stacked up and down and used for horizontal detection of horizontal intrusion distance, the first ruler 10 is located at the top, and the second ruler 20 is located directly below the first ruler 10, and the lengths of the first ruler 10 and the second ruler 20 are the same, both 52 cm. One end of the first ruler 10 and the second ruler 20 are movably hinged together, and in the figure, the hinge point 30 is located at the rightmost end of the first ruler 10 and the second ruler 20.

[0029] The first ruler 10 and the second ruler 20 are both hollow structures. Figure 5As shown, the free end of the first ruler 10 is provided with a first pull rod 11 which can be retracted inside the first ruler 10, and the free end of the second ruler 20 is provided with a second pull rod 21 which can be retracted inside the second ruler 20. The lengths of the first pull rod 11 and the second pull rod 21 are also the same, both of which are 51 cm.

[0030] Figure 1-Figure 3 Schematic diagram of the stretched state of an embodiment of the present invention. In the figure, after being stretched to the limit, the maximum measuring length of the first ruler 10 and the first pull rod 11 is the same as the maximum measuring length of the second ruler 20 and the second pull rod 21, both of which are 100 cm, that is, the actual measured total length of the tram intrusion detection device provided by the present invention after being stretched is 100 cm.

[0031] like Figure 1 and Figure 4 As shown, the free ends of the first pull rod 11 and the second pull rod 21 are respectively penetrated by a first fixing rod 12 and a second fixing rod 22, and the bottom protruding ends of the first fixing rod 12 and the second fixing rod 22 are both clamped in the rail groove of the tram groove rail, playing the role of lateral positioning and rapid detection.

[0032] Furthermore, the first fixing rod 12 and the second fixing rod 22 are both cylindrical steel pipes with a diameter of 0.5 cm.

[0033] Furthermore, the tram intrusion detection device provided by the present invention has a simple structure and is easy to use. The main structure (including the first ruler 10, the first pull rod 11, the second ruler 20 and the second pull rod 21, etc.) is made of corrosion-resistant aluminum-magnesium alloy and is strong and durable.

[0034] like Figure 3-4 and Figure 7 As shown, the free end surfaces of the first pull rod 11 and the second pull rod 21 are respectively provided with screw holes. When in use, the length of the bottom protruding end of the first fixing rod 12 is adjusted to be the same as the depth of the groove of the grooved rail, and then the length of the bottom protruding end of the second fixing rod 22 is adjusted to match the snap-fit ​​into the rail groove, and then the fastening screws 40 are used to pass through the screw holes to lock and fix the first fixing rod 12 and the second fixing rod 22.

[0035] like Figure 5 and Figure 6 As shown, a level bubble 13 is embedded on the upper surface of the first ruler 10 for quickly and accurately calibrating the tram intrusion detection device provided by the present invention.

[0036] like Figure 1-7As shown, the second ruler 20 is also hingedly provided with a telescopic rod 23 on one side near the hinge point 30, and a length scale is engraved on the telescopic rod 23 for detecting the longitudinal intrusion distance of the intruding object. The telescopic rod 23 adopts a segmented retractable structure (such as a fishing rod or a radio antenna, but not limited thereto), and its telescopic length is 45cm-315cm, that is, the minimum length in the retracted state is 45cm, and the maximum length in the extended state is 315cm. In addition, the fixed end of the telescopic rod 23 (i.e., the connection with the second ruler 20) is also provided with a 90° rotation limit slot for rapid rotation positioning of the telescopic rod 23, and at the same time, it can ensure that the telescopic rod is stable at a position 90° perpendicular to the second ruler and does not move.

[0037] like Figure 2 and Figure 3 As shown, a detection compass 31 is fixedly arranged at the hinge point 30, and a pointer 32 on the detection compass 31 is fixedly connected to the second ruler 20, and the pointer 32 displays the rotation angle accordingly as the second ruler 20 rotates. Figure 8 As shown, the second ruler 20 needs to rotate counterclockwise around the hinge 30. When the angle between the pointer 32 and the longitudinal line is within the range of 0° to 72°, the distance between the hinge point 30 and the working edge of the rail is greater than 0.8m, and the above angle range in the compass 31 is also displayed as green, indicating that the tram can pass normally; when the angle is within the range of 72° to 90°, the distance between the hinge point 30 and the working edge of the rail is between 0.7 and 0.8m, and the above angle range in the compass 31 is also displayed as yellow, and the tram needs to pass at a limited speed and strengthen observation; when the angle is greater than 90°, the distance between the hinge point 30 and the working edge of the rail is less than 0.7m, and the compass 31 is also displayed as red, indicating that the external facilities are seriously intruding, and the tram cannot pass, and needs to brake and stop and wait for clearance. Its design principle is as follows:

[0038] Assume that the display angle of the compass is θ, that is, θ is the angle between the first ruler and the second ruler; the shortest distance between the compass hinge and the rail is s; the total length of the actual measured part after the ruler is pulled out is l. Since the total length of the actual measured part after the ruler is pulled out is 1m, we can get:

[0039]

[0040] Right now

[0041]

[0042] Since the total length of the actual measured part after the ruler is pulled out is 1m,

[0043] When s>0.8m, vehicles can pass normally.

[0044]

[0045] When 0.7m < s ≤ 0.8m, the vehicle needs to pass at a speed limit and strengthen observation. At this time

[0046]

[0047] When s ≤ 0.7m, the intrusion of external facilities is serious and the tram cannot pass. At this time

[0048] 90° < θ ≤ 180°.

[0049] The tram intrusion detection device provided by the present invention can quickly detect and determine the minimum distance between an external object and the body limit of the tram when an intrusion occurs, and judge whether an intrusion has occurred. It is mainly divided into distance detection in the horizontal direction and distance measurement in the vertical direction. Among them:

[0050] In the horizontal direction, mainly two hinged straight rulers are clamped in the groove of the channel rail, and the height is adjusted by the corresponding fixed rods inserted at their free ends. Then, the second straight ruler is rotated counterclockwise around the hinge. The free ends of the two straight rulers (or their pull rods) and the hinge point (compass) determine a plane. Then, fine adjustment is carried out through the spirit level on the first straight ruler to achieve overall horizontal. Finally, the shortest distance between the hinge point and the rail is determined. At this time, the hinge point (or compass) is equivalent to the "contact point" for testing the intrusion object. Then, the corresponding angle is obtained through the arcsine relationship and displayed in different colors on the compass, which can intuitively and quickly judge the intrusion risk.

[0051] In the vertical direction, mainly the telescopic pull rod is used to determine the longitudinal height or distance of the intrusion. When in use, the telescopic pull rod is rotated to the 90° rotation limit card slot, and an obvious "slotting feeling" is generated. At this time, the tester judges that the rotation is in place. The telescopic pull rod is perpendicular to the second straight ruler in the longitudinal vertical plane. Then, the free end of the telescopic pull rod is stretched until it touches the intrusion object, and the scale reading is read to obtain the intrusion height, and the detection is convenient.

[0052] In summary, the tram intrusion detection device provided by the present invention has a telescopic structure, is convenient to carry, has a delicate structure, is strong and durable. It mainly detects and judges the distance of the intrusion object in the horizontal and vertical directions. The detection is accurate, and the detection result can be intuitively and quickly displayed through the color area corresponding to the compass pointer. The operation is simple and the practicability is good.

[0053] It should be noted that the above embodiments are used to illustrate the present invention rather than to limit the present invention, and those skilled in the art can design alternative embodiments without departing from the scope of the appended claims. In the claims, the word "comprising" does not exclude the existence of data or steps not listed in the claims.

Claims

1. A tram intrusion detection device, characterized in that: The invention comprises a first ruler (10) and a second ruler (20) which are stacked on top of each other and movably hinged at one end, the first ruler (10) and the second ruler (20) both have hollow structures inside, and the free ends of the first ruler (10) and the second ruler (20) are respectively provided with a retractable first pull rod (11) and a second pull rod (21), and the free ends of the first pull rod (11) and the second pull rod (21) are respectively penetrated with a first fixing rod (12) and a second fixing rod (22), and the bottom protruding ends of the first fixing rod (12) and the second fixing rod (22) are both clamped in the rail groove of the tram groove rail; a level bubble (13) for horizontal correction is embedded on the upper surface of the first ruler (10), and a detection compass (31) is fixedly arranged at the hinge point (30), and a pointer (32) on the detection compass (31) is fixedly connected to the second ruler (20), and the pointer (32) displays the rotation angle accordingly with the rotation of the second ruler (20); A detection compass (31) is fixedly arranged at the hinge point (30), and the second ruler (20) needs to rotate counterclockwise around the hinge point (30). When the detection compass displays an angle within the range of 0° to 72°, the distance between the hinge point (30) and the working edge of the rail is greater than 0.8 m. The above angle range in the compass (31) is displayed in green, indicating that the tram can pass normally. The compass displays an angle between the first ruler and the second ruler. When the angle is within the range of 72°, the first ruler and the second ruler are rotated counterclockwise. When the angle is within the range of 90° to 90°, the distance between the hinge point (30) and the working edge of the rail is between 0.7 and 0.8 m, the compass (31) shows the above angle range in yellow, and the tram needs to pass at a limited speed and strengthen observation; when the angle is greater than 90°, the distance between the hinge point (30) and the working edge of the rail is less than 0.7 m, the compass (31) shows red, indicating that the external facilities are seriously intruding, the tram cannot pass, and needs to brake to stop and wait for clearance.

2. The tram intrusion detection device according to claim 1 is characterized in that: The second ruler (20) is also provided with a telescopic pull rod (23) on one side close to the hinge point (30) for detecting the longitudinal intrusion height.

3. The tram intrusion detection device according to claim 2 is characterized in that: The fixed end of the telescopic pull rod (23) is also provided with a 90° rotation limit slot for rapid positioning.

4. The tram intrusion detection device according to claim 3 is characterized in that: The telescopic length of the telescopic pull rod (23) is 45 cm-315 cm.

5. The tram intrusion detection device according to claim 1, characterized in that: The first ruler (10) and the second ruler (20) have the same length, both of which are 52 cm.

6. The tram intrusion detection device according to claim 5, characterized in that: The lengths of the first pull rod (11) and the second pull rod (21) are also the same, both being 51 cm.

7. The tram intrusion detection device according to claim 6 is characterized in that: The maximum measuring lengths of the first ruler (10) and the first pull rod (11), and the second ruler (20) and the second pull rod (21) are the same, both being 100 cm.

8. The tram intrusion detection device according to claim 6, characterized in that: The first ruler (10), the first pull rod (11), the second ruler (20) and the second pull rod (21) are all made of a corrosion-resistant aluminum-magnesium alloy.

9. The tram intrusion detection device according to claim 1, characterized in that: The first fixing rod (12) and the second fixing rod (22) are both cylindrical steel pipes with a diameter of 0.5 cm.

10. The tram intrusion detection device according to claim 1, characterized in that: The free end surfaces of the first pull rod (11) and the second pull rod (21) are respectively provided with screw holes, and fastening screws (40) are respectively passed through the screw holes to lock and fix the first fixing rod (12) and the second fixing rod (22).

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