A detection device for high-speed rail freight

Abstract

The present invention discloses a detection device applied to high-speed rail freight, comprising: a shell with an accommodating cavity provided inside, a detection port provided on the side wall of the accommodating cavity; a lifting seat movably installed in the accommodating cavity, at least one roller movably installed on the upper part of the lifting seat; an elastic driving mechanism arranged in the accommodating cavity, the elastic driving mechanism being able to drive the lifting seat to move upward relative to the accommodating cavity; a sensor installed at the detection port, the sensor being used to detect the lifting and / or falling of the lifting seat relative to the accommodating cavity. When the detection device is installed on the bottom wall of the high-speed rail carriage and the high-speed rail freight container is transported into the high-speed rail carriage, the high-speed rail freight container squeezes the roller and causes the lifting seat to move and fall relative to the accommodating cavity, and then the sensor can detect that the high-speed rail freight container is transported into the high-speed rail carriage, and is not easily disturbed by external debris, and has high detection accuracy and strong anti-interference ability.

Description

Technical Field

[0001] The present invention relates to the field of high-speed rail freight, and in particular to a detection device applied to high-speed rail freight. Background Art

[0002] With the continuous improvement of my country's high-speed rail lines, high-speed rail freight has become more and more popular. In order to enable the goods to be quickly loaded on or unloaded from the high-speed rail carriages, people generally load the goods into high-speed rail freight containers first, and then transport the high-speed rail freight containers into the high-speed rail carriages. The bottom wall of the high-speed rail carriage is provided with a locking structure that can lock or release the high-speed rail freight container. These locking structures are generally controlled by the limiter to rise and protrude from the bottom surface of the carriage. At this time, the limiter can be abutted and limited with the end of the high-speed rail freight container, or the locking structure controls the limiter to fall to be level with the bottom surface of the carriage, thereby releasing the limit on the end of the high-speed rail freight container.

[0003] In order to facilitate the control system to control the locking device to limit the high-speed rail freight container, a photoelectric sensor for detecting the high-speed rail freight container is installed at the bottom of the existing high-speed rail carriage. When the high-speed rail freight container is transported into the high-speed rail carriage, the photoelectric sensor can detect the high-speed rail freight container and feed back the detection result to the control system, and then the control system can control the action of the locking structure.

[0004] Although the above-mentioned photoelectric sensor can meet the demand of detecting whether the high-speed rail freight container is transported into the high-speed rail carriage, the photoelectric sensor is easily affected by external interference. For example, when there are items such as paper scraps or large dust particles in the high-speed rail carriage, the paper scraps or dust particles may cover the photoelectric sensor and cause the photoelectric sensor to misjudge, and then the control system may mistakenly control the action of the locking structure. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a detection device applied to high-speed rail freight, which can reduce external interference and improve detection accuracy.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] According to some embodiments of the present invention, a detection device applied to high-speed rail freight includes: a shell, a accommodating chamber with an open upper portion is provided inside the shell, and a detection port is provided on a side wall of the accommodating chamber; a lifting seat movably installed in the accommodating chamber, the lifting seat can be moved up and down relative to the accommodating chamber in a vertical direction, at least one roller is movably installed on the upper part of the lifting seat, the roller can be horizontally rotated relative to the shell, and the roller is located above the shell; an elastic driving mechanism is arranged in the accommodating chamber, the elastic driving mechanism is transmission-connected to the lifting seat, and the elastic driving mechanism can drive the lifting seat to move upward relative to the accommodating chamber; a sensor is installed at the detection port, and the sensor is used to detect the movement, lifting and / or lowering of the lifting seat relative to the accommodating chamber.

[0008] In some embodiments of the present invention, a mounting seat is provided on the upper portion of the lifting seat, the mounting seat is provided with a horizontal pivot shaft, and the roller is pivotally connected to the horizontal pivot shaft; the lifting seat is rotatably mounted in the accommodating cavity, and the lifting seat can rotate horizontally relative to the shell.

[0009] In some embodiments of the present invention, the number of the rollers is two, the two rollers are both pivotally connected to the horizontal pivot axis, and the mounting seat is located between the two rollers.

[0010] In certain embodiments of the present invention, the accommodating cavity is a cylindrical cavity, the lifting seat is a cylinder matching the shape of the cylindrical cavity, and at least one sealing ring is provided between the outer circumferential wall of the lifting seat and the inner circumferential wall of the accommodating cavity.

[0011] In some embodiments of the present invention, an annular groove is formed on the outer peripheral wall of the lifting seat, and the sealing ring is sleeved and installed in the annular groove.

[0012] In some embodiments of the present invention, the elastic driving mechanism is a compression spring, one end of the compression spring abuts against the inner wall of the accommodating cavity, and the other end of the compression spring abuts against the lifting seat.

[0013] In certain embodiments of the present invention, a thrust needle roller bearing is disposed on the inner bottom wall of the accommodating cavity, one end of the compression spring abuts against the lifting seat, and the other end of the compression spring abuts against the thrust needle roller bearing.

[0014] In certain embodiments of the present invention, a positioning column is disposed at the lower portion of the lifting seat, and the compression spring and the thrust needle roller bearing are sleeved on the outer circumference of the positioning column.

[0015] In certain embodiments of the present invention, a limiting bolt is further included outside the accommodating cavity, and a clearance hole is opened on the inner bottom wall of the accommodating cavity. The limiting bolt movably passes through the clearance hole and is threadedly connected to the lower part of the positioning column, or the lower part of the positioning column movably passes through the clearance hole and is threadedly connected to the limiting bolt; wherein the lifting seat can drive the positioning column and the limiting bolt to move up and down.

[0016] In some embodiments of the present invention, the sensor is a proximity sensor.

[0017] Beneficial effects of the detection device of certain embodiments of the present invention: a lifting seat is movably installed in the accommodating chamber, at least one roller is movably installed on the upper part of the lifting seat, and a sensor for detecting the lifting seat moving up or down relative to the accommodating chamber is provided on the side wall of the accommodating chamber. When the detection device is installed on the bottom wall of the high-speed rail carriage and the high-speed rail freight container is transported into the high-speed rail carriage, the high-speed rail freight container squeezes the roller and causes the lifting seat to move and fall relative to the accommodating chamber, and then the sensor can detect that the high-speed rail freight container is transported into the high-speed rail carriage, which is not easily disturbed by external debris, has high detection accuracy, and strong anti-interference ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Figure 1 It is a schematic diagram of the appearance structure of a detection device according to some embodiments of the present invention;

[0020] Figure 2 for Figure 1 A cross-sectional view of the internal structure of the detection device is shown in FIG.

[0021] Figure 3 for Figure 1 A partial structural decomposition schematic diagram of the detection device is shown in FIG. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In the description of the present invention, "several" means one or more, "more" means more than three, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first", "second", etc., it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] Reference Figures 1 to 3 In some embodiments of the present invention, a detection device for high-speed rail freight transportation includes a housing 100 that is generally truncated cone-shaped and has a larger upper portion and a smaller lower portion. It should be noted that the shape of the housing 100 can also be set to a cylindrical column, a square column, or other shapes, and is not limited to the above-mentioned truncated cone shape. The specific shape can be determined according to actual needs. A receiving cavity 110 with an open upper portion is provided inside the housing 100, and a detection port 111 is provided on a side wall of the receiving cavity 110. The detection port 111 passes through a side wall of the receiving cavity 110. A lifting seat 200 is movably installed in the accommodating chamber 110. The lifting seat 200 can move up and down relative to the accommodating chamber 110 in a vertical direction. At least one roller 210 is movably installed on the upper part of the lifting seat 200. The roller 210 can rotate horizontally relative to the shell 100. The roller 210 is located above the shell 100. Since the roller 210 can rotate horizontally relative to the shell 100, when the bottom wall of the high-speed rail freight container is placed on the upper part of the roller 210 and squeezes the roller 210, the high-speed rail freight container moves along the length direction of the high-speed rail carriage or enters and exits the high-speed rail carriage from the entrance and exit of the high-speed rail carriage. The bottom wall of the high-speed rail freight container can drive the roller 210 to rotate horizontally, and make the rotation direction of the roller 210 consistent with the moving direction of the high-speed rail freight container, so as to avoid the friction of the bottom wall of the high-speed rail freight container to damage the roller 210 or break the lifting seat 200. An elastic driving mechanism is provided in the accommodating chamber 110, and the elastic driving mechanism is transmission-connected to the lifting seat 200, and the elastic driving mechanism can drive the lifting seat 200 to move upward relative to the accommodating chamber 110; a sensor 300 is installed at the detection port 111, and the sensor 300 is used to detect the lifting and / or lowering of the lifting seat 200 relative to the accommodating chamber 110.

[0027] The working process of the detection device of this embodiment when applied to high-speed rail freight is as follows:

[0028] When in use, the detection device can be installed on the bottom wall of a high-speed rail carriage (not shown in the figure), and when the high-speed rail freight container (not shown in the figure) is transported into the high-speed rail carriage, the bottom wall of the high-speed rail freight container squeezes the roller 210 and the lifting seat 200 and moves downward synchronously to squeeze the elastic driving mechanism to undergo elastic deformation, so that the sensor 300 can detect that the lifting seat 200 moves and falls relative to the accommodating chamber 110, and the sensor 300 can detect that the high-speed rail freight container is transported into the high-speed rail carriage. The detection is accurate and reliable. Since the area detected by the sensor 300 is within the accommodating chamber 110, it is not allowed to It is easily disturbed by external debris, and the bottom of the lifting seat 200 is supported by the elastic driving mechanism. The roller 210 needs to bear a large load to move downward to squeeze the elastic driving mechanism to cause elastic deformation. Therefore, it is not easy for the roller 210 to be mistakenly squeezed by external force and the lifting seat 200 to move downward and be detected by the sensor 300, which greatly reduces the probability of false triggering of the sensor 300, thereby enabling the detection device of this embodiment to accurately detect whether the high-speed rail freight container is transported into the high-speed rail carriage, is not easily disturbed by external debris, has high detection accuracy, and has strong anti-interference ability.

[0029] It should be noted that, in the above embodiment, the sensor 300 is a proximity sensor, which is installed at the detection port 111. The proximity sensor is used for the lifting seat 200 to move and descend relative to the accommodating chamber 110. When the high-speed rail freight container (not shown in the figure) is transported into the high-speed rail carriage, the bottom wall of the high-speed rail freight container squeezes the roller 210 and the lifting seat 200 and moves downward synchronously to squeeze the elastic driving mechanism to undergo elastic deformation, and the lifting seat 200 moves downward to approach the above-mentioned proximity sensor. Therefore, the proximity sensor can detect the movement and descent of the lifting seat 200 relative to the accommodating chamber 110, and the proximity sensor can detect that the high-speed rail freight container is transported into the high-speed rail carriage.

[0030] It can be understood that the above-mentioned sensor 300 can also be set as a photoelectric sensor. Specifically, the sensor 300 is an infrared sensor, which is installed at the detection port 111. When the high-speed rail freight container (not shown in the figure) is transported into the high-speed rail carriage, the bottom wall of the high-speed rail freight container squeezes the roller 210 and the lifting seat 200 to move downward synchronously to squeeze the elastic driving mechanism to undergo elastic deformation, and the lifting seat 200 moves downward to approach the infrared sensor. Therefore, the infrared sensor can detect that the lifting seat 200 moves and falls relative to the accommodating cavity 110, and the infrared sensor can detect that the high-speed rail freight container is transported into the high-speed rail carriage.

[0031] In certain embodiments of the present invention, the sensor 300 is a proximity sensor or a photoelectric sensor, which is installed at the detection port 111. The proximity sensor or photoelectric sensor is used for the lifting seat 200 to move and rise relative to the accommodating chamber 110. When the high-speed rail freight container (not shown in the figure) is transported into the high-speed rail carriage, the bottom wall of the high-speed rail freight container squeezes the roller 210 and the lifting seat 200 moves downward synchronously to squeeze the elastic driving mechanism to cause elastic deformation, and the lifting seat 200 moves downward to approach the above-mentioned proximity sensor or photoelectric sensor. When the high-speed rail freight container moves away from the pressure roller 210, the elastic driving mechanism drives the roller 210 and the lifting seat 200 to move upward synchronously. At this time, the proximity sensor or photoelectric sensor can detect that the lifting seat 200 moves and rises relative to the accommodating chamber 110, and the proximity sensor or photoelectric sensor can detect that the high-speed rail freight container moves through the above-mentioned detection device.

[0032] It should be noted that, in some embodiments of the present invention, the sensor 300 is a proximity sensor or a photoelectric sensor, which is installed at the detection port 111. The proximity sensor or photoelectric sensor is used for the lifting seat 200 to move up and down relative to the accommodating chamber 110. When the high-speed rail freight container (not shown in the figure) is transported into the high-speed rail carriage, the bottom wall of the high-speed rail freight container squeezes the roller 210 and the lifting seat 200 to move downward synchronously to squeeze the elastic driving mechanism to cause elastic deformation, and the lifting seat 200 moves downward to approach the above-mentioned proximity sensor or photoelectric sensor, so the proximity sensor or photoelectric sensor can detect that the lifting seat 200 moves and falls relative to the accommodating chamber 110, and the proximity sensor or photoelectric sensor can detect that the high-speed rail freight container is transported into the high-speed rail carriage; when the high-speed rail freight container moves away from the pressure roller 210, the elastic driving mechanism drives the roller 210 and the lifting seat 200 to move upward synchronously, at this time, the proximity sensor or photoelectric sensor can detect that the lifting seat 200 moves and rises relative to the accommodating chamber 110, and the proximity sensor or photoelectric sensor can detect that the high-speed rail freight container moves through the above-mentioned detection device.

[0033] In order to simplify the structure of the detection device, in some embodiments of the present invention, a mounting seat 220 is provided on the upper part of the lifting seat 200, and the mounting seat 220 is provided with a horizontal pivot shaft 221, and the roller 210 is pivoted to the horizontal pivot shaft 221; the lifting seat 200 is rotatably mounted in the accommodating cavity 110, and the lifting seat 200 can rotate horizontally relative to the housing 100. Further, there are two rollers 210, both of which are pivoted to the horizontal pivot shaft 221, and the mounting seat 220 is located between the rollers 210. By adopting the above structure, the structure of the detection device is simplified, and assembly production is convenient.

[0034] It should be noted that, in addition to the above-mentioned structure, the roller 210 may also adopt other structures, such as the roller 210 is a spherical ball, the upper part of the lifting seat 200 is provided with a mounting groove adapted to the ball, and the ball is movably mounted in the mounting groove, and the roller 210 can rotate horizontally relative to the housing 100. The specific structure can be determined according to actual needs.

[0035] Reference Figure 2 and Figure 3 In order to make the lifting seat 200 move and rise and fall better relative to the accommodating chamber 110, in some embodiments of the present invention, the accommodating chamber 110 is a cylindrical cavity in a cylindrical shape, and the lifting seat 200 is a cylinder matching the shape of the cylindrical cavity. At least one sealing ring 230 is arranged between the outer peripheral wall of the lifting seat 200 and the inner peripheral wall of the accommodating chamber 110. Furthermore, an annular groove 201 is opened on the outer peripheral wall of the lifting seat 200, and the sealing ring 230 is sleeved and installed in the annular groove 201.

[0036] In order to enhance the effect of the sealing ring 230 in sealing the gap between the outer circumferential wall of the lifting seat 200 and the inner circumferential wall of the accommodating chamber 110 , specifically, two annular grooves 201 are opened on the outer circumferential wall of the lifting seat 200 , and a sealing ring 230 is sleeved and installed in each of the two annular grooves 201 .

[0037] In order to simplify the structure of the elastic driving mechanism, in certain embodiments of the present invention, the elastic driving mechanism is a compression spring 400 , one end of the compression spring 400 abuts against the inner wall of the accommodating chamber 110 , and the other end of the compression spring 400 abuts against the lifting seat 200 .

[0038] It should be noted that in some embodiments of the present invention, the elastic drive mechanism can also be an elastic sleeve made of silicone or rubber, one end of the elastic sleeve abuts against the inner wall of the accommodating cavity 110, and the other end of the elastic sleeve abuts against the lifting seat 200.

[0039] In order to prevent the roller 210 from wearing the compression spring 400 or the inner wall of the accommodating chamber 100 when the lifting seat 200 and the compression spring 400 rotate horizontally relative to the housing 100, in some embodiments of the present invention, a thrust needle roller bearing 500 is provided on the inner bottom wall of the accommodating chamber 110, one end of the compression spring 400 abuts against the lifting seat 200, and the other end of the compression spring 400 abuts against the thrust needle roller bearing 500. By adopting the above structure, the thrust needle roller bearing 500 can withstand the extrusion force of the compression spring 400, and at the same time, the compression spring 400 can rotate horizontally relative to the housing 100 more smoothly.

[0040] In order to facilitate the positioning and assembly of the compression spring 400, the thrust needle roller bearing 500 and the lifting seat 200, in some embodiments of the present invention, a positioning column 240 is provided at the lower part of the lifting seat 200, and the compression spring 400 and the thrust needle roller bearing 500 are sleeved on the outer periphery of the positioning column 240. During assembly, it is only necessary to sleeve the compression spring 400 and the thrust needle roller bearing 500 on the positioning column 240 accordingly, which is simple and convenient.

[0041] In order to prevent the lifting seat 200 from accidentally escaping from the upper opening of the accommodating chamber 110, the detection device of some embodiments of the present invention also includes a limiting bolt 600 located outside the accommodating chamber 110, and the inner bottom wall of the accommodating chamber 110 is provided with a clearance hole 112. The limiting bolt 600 moves through the clearance hole 112 and is threadedly connected with the lower part of the positioning column 240, or the lower part of the positioning column 240 moves through the clearance hole 112 and is threadedly connected with the limiting bolt 600; when the roller 210 is squeezed by an external force and drives the lifting seat 200 to move downward to squeeze the elastic driving mechanism, the lifting seat 200 can drive the positioning column 240 and the limiting bolt 600 to move downward and land synchronously, and when the elastic driving mechanism drives the lifting seat 200 to move upward and rise, the lifting seat 200 can drive the positioning column 240 and the limiting bolt 600 to move upward and rise synchronously.

[0042] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A detection device applied to high-speed rail freight, characterized in that: include: A housing (100), wherein a receiving chamber (110) with an open top is provided inside the housing (100), and a detection port (111) is provided on a side wall of the receiving chamber (110); A lifting seat (200) is movably mounted in the accommodating cavity (110); the lifting seat (200) can be moved up and down relative to the accommodating cavity (110) in a vertical direction; at least one roller (210) is movably mounted on the upper part of the lifting seat (200); the roller (210) can be horizontally rotated relative to the shell (100); and the roller (210) is located above the shell (100); An elastic driving mechanism is disposed in the accommodating chamber (110), the elastic driving mechanism being in transmission connection with the lifting seat (200), and the elastic driving mechanism being capable of driving the lifting seat (200) to move upward relative to the accommodating chamber (110); A sensor (300) is installed at the detection port (111), and the sensor (300) is used to detect the lifting and / or lowering of the lifting seat (200) relative to the accommodating chamber (110); The upper part of the lifting seat (200) is provided with a mounting seat (220), and the mounting seat (220) is provided with a horizontal pivot shaft (221), and the roller (210) is pivotally connected to the horizontal pivot shaft (221); the lifting seat (200) is rotatably mounted on the accommodating cavity (110), and the lifting seat (200) can rotate horizontally relative to the shell (100).

2. A detection device for high-speed rail freight according to claim 1, characterized in that: There are two rollers (210), both of which are pivotally connected to the horizontal pivot shaft (221), and the mounting seat (220) is located between the two rollers (210).

3. The detection device for high-speed rail freight according to claim 1 is characterized in that: The accommodating cavity (110) is a cylindrical cavity in a cylindrical shape, the lifting seat (200) is a cylinder matching the shape of the cylindrical cavity, and at least one sealing ring (230) is provided between the outer peripheral wall of the lifting seat (200) and the inner peripheral wall of the accommodating cavity (110).

4. A detection device for high-speed rail freight transportation according to claim 3, characterized in that: An annular groove (201) is formed on the outer peripheral wall of the lifting seat (200), and the sealing ring (230) is sleeved and installed in the annular groove (201).

5. The detection device for high-speed rail freight according to claim 1, characterized in that: The elastic driving mechanism is a compression spring (400), one end of the compression spring (400) abuts against the inner wall of the accommodating cavity (110), and the other end of the compression spring (400) abuts against the lifting seat (200).

6. The detection device for high-speed rail freight according to claim 5, characterized in that: A thrust needle roller bearing (500) is disposed on the inner bottom wall of the accommodating cavity (110), one end of the compression spring (400) abuts against the lifting seat (200), and the other end of the compression spring (400) abuts against the thrust needle roller bearing (500).

7. A detection device for high-speed rail freight transportation according to claim 6, characterized in that: A positioning column (240) is provided at the lower part of the lifting seat (200), and the compression spring (400) and the thrust needle roller bearing (500) are sleeved on the outer periphery of the positioning column (240).

8. The detection device for high-speed rail freight transportation according to claim 7, characterized in that: It also includes a limiting bolt (600) located outside the accommodating cavity (110); a clearance hole (112) is opened on the inner bottom wall of the accommodating cavity (110); the limiting bolt (600) movably passes through the clearance hole (112) and is threadedly connected to the lower part of the positioning column (240); or the lower part of the positioning column (240) movably passes through the clearance hole (112) and is threadedly connected to the limiting bolt (600); The lifting seat (200) can drive the positioning column (240) and the limiting bolt (600) to move up and down.

9. A detection device for high-speed rail freight according to any one of claims 1 to 8, characterized in that: The sensor (300) is a proximity sensor.

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