A height limiting device for a pantograph pressure detection apparatus of an electric train

Abstract

The utility model provides a kind of height limiting device of electric car pantograph pressure detection equipment, it includes installation base plate, crosspiece, height limiting component and wire clamp, one end of the crosspiece is installed on installation base plate, the height limiting component is installed on the other end of crosspiece, and the wire clamp is installed on the bottom of height limiting component.The utility model discloses height limiting device with the crosspiece of upper inclined support structure, pantograph pressure detection equipment is more stable and reliable in real-time detection process, and multiple sets of insulators are equipped on the crosspiece, two-stage insulation is used, the possibility of power leakage of contact wire can be prevented more effectively;Height limiting component design can be adjusted sliding horizontally along the extension direction of crosspiece, different contact wire of pull-out value can be coped with, and linear guide rail group can also be freely slid relative to height limiting component, so that height limiting device can cope with the length change problem of contact wire due to thermal expansion and cold shrink or different tension;The utility model has strong practicability and strong popularization significance.

Description

Technical Field

[0001] This utility model relates to the field of pantograph technology, and in particular to a height limiting device for pantograph pressure detection equipment in electric buses. Background Technology

[0002] In electrified railway systems, a stable contact pressure between the pantograph and the overhead contact line is essential to ensure stable current collection for the locomotive. Insufficient contact pressure can cause the pantograph to detach from the contact line, resulting in an electric arc. Excessive contact pressure can cause the contact line to bend, accelerating wear on both the pantograph and the contact line, leading to fatigue damage to the contact line, and in severe cases, even directly damaging the carbon contact plate or the contact line itself. To ensure stable contact pressure, pantograph pressure measurement is necessary. However, most existing pantograph pressure detection equipment is not real-time, and even those that can detect pantograph pressure in real-time still suffer from insufficient accuracy and stability. Utility Model Content

[0003] Therefore, it is necessary to provide a height limiting device for pantograph pressure detection equipment in electric buses, addressing the shortcomings of existing technologies.

[0004] A height-limiting device for a pantograph pressure detection equipment in an electric passenger vehicle includes a mounting base plate, a crossbeam, a height-limiting component, and a clamp. One end of the crossbeam is mounted on the mounting base plate, the height-limiting component is mounted on the other end of the crossbeam, and the clamp is mounted on the bottom of the height-limiting component. The crossbeam includes a connecting rod, multiple sets of first insulators, and a set of second insulators. The connecting rod has a one-sided forked design, with multiple forked ends and an opposing independent end. One end of each set of first insulators is connected to one of the forked ends of the connecting rod, and the other end of each set of first insulators is connected to the mounting base plate. One set of first insulators is perpendicular to the mounting base plate, and at least one other set of first insulators is inclined upwards relative to the mounting base plate and located below the vertically set first insulator. One end of the second insulator is connected to the independent end of the connecting rod, and the second insulator is at the same horizontal line as the vertically set first insulator.

[0005] Furthermore, the crossbar includes three sets of first insulators, with three correspondingly provided at the bifurcation ends of the connecting rod. One end of each of the three sets of first insulators is connected to one of the three bifurcation ends of the connecting rod, and the other end of each set of first insulators is connected to the mounting base plate. One set of first insulators is vertically arranged relative to the mounting base plate, while the other two sets of first insulators are inclined upwards and downwards relative to the mounting base plate, respectively, and are located below and above the vertically arranged first insulator.

[0006] Furthermore, the height limiting assembly includes a sliding frame, an adjusting seat, a height limiting rod, and a linear guide rail assembly. The sliding frame is installed on the outer end of the second insulator, and a free slide rail is provided on the sliding frame, with first limiting blocks at both ends of the free slide rail. A free slider is provided at the bottom of the adjusting seat, and the free slider is engaged with the free slide rail, allowing the adjusting seat to slide freely horizontally along the free slide rail. The height limiting rod passes through the adjusting seat in the vertical direction, and its lower end extends below the sliding frame. A guide rail slider is also provided at the lower end of the height limiting rod. The linear guide rail assembly includes a linear guide rail and a connecting plate located at the bottom of the linear guide rail. Second limiting blocks are provided at both ends of the linear guide rail, and the linear guide rail and guide rail slider are engaged, allowing the linear guide rail assembly to slide freely along the linear guide rail. The wire clamp is installed at the bottom of the connecting plate.

[0007] Furthermore, the height limiting component also includes a limiting locking rod, on which a corresponding limiting chuck is provided. The height limiting rod is rotatably adjustable for vertical extension and retraction, and the limiting locking rod is mounted on one side of the adjusting seat and corresponds to the limiting chuck.

[0008] Furthermore, the clamp includes two sets of clamping plates and several connecting bolts. The two sets of clamping plates are horizontally symmetrical and spaced apart from each other. Each set of clamping plates has a limiting groove on its upper and lower inner sides, wherein the limiting groove on the upper side of the clamping plate engages with the connecting plate of the linear guide assembly. Each set of clamping plates has several through-holes on both sides, and these holes are arranged in a one-to-one correspondence. Several connecting bolts pass through these holes to connect the two sets of clamping plates.

[0009] Furthermore, one end of the clip is designed with rounded corners, and the upper and lower sides of the inner side of the rounded corner end of the clip are also provided with alignment slots.

[0010] Furthermore, any two adjacent connecting bolts on the clamp are arranged with their head and tail directions opposite. The connecting bolts are also equipped with anti-loosening washers.

[0011] Furthermore, the height limiting device of the electric bus pantograph pressure detection equipment has two sets of clamps, and the two sets of clamps are arranged at an interval between the front and rear at the bottom of the height limiting component.

[0012] In summary, the beneficial effects of the height limiting device for pantograph pressure detection equipment in electric passenger vehicles according to this utility model are as follows: By designing a height limiting device with a crossbeam featuring an upward inclined support structure, the pantograph pressure detection equipment becomes more stable and reliable during real-time detection. Furthermore, the crossbeam is equipped with multiple sets of insulators, employing two-stage insulation, which effectively prevents potential leakage of electricity from the contact wire. The height limiting component is designed to slide horizontally along the extension direction of the crossbeam, accommodating contact wires with different pull-out values. The linear guide rail assembly can also slide freely relative to the height limiting component, allowing the height limiting device to address length changes in the contact wire due to thermal expansion and contraction or varying tension. The adjustable telescopic height limiting rod, combined with a limiting lock rod, allows for flexible adjustment of the height of the height limiting rod to match the contact wire, and prevents inaccurate data caused by contact wire movement or offset due to other equipment or external forces, ensuring higher and more accurate detection precision. The separate clamp design allows for flexible matching of different types of contact wire detection, further enhancing the applicability of the detection device. This utility model is highly practical and has significant potential for widespread application. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the height limiting device of the pantograph pressure detection equipment for electric buses according to this utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the decomposed structure;

[0015] Figure 3 for Figure 2 Exploded view of the central crossbeam;

[0016] Figure 4 for Figure 2 Exploded view of the height-limiting component;

[0017] Figure 5 for Figure 2 A schematic diagram of the exploded structure of the centerline clamp. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0019] like Figures 1 to 5 As shown, this utility model provides a height limiting device 100 for a pantograph pressure detection device for electric buses, which includes a mounting base plate 10, a crossbeam 20, a height limiting component 30, and a wire clamp 40. One end of the crossbeam 20 is mounted on the mounting base plate 10, the height limiting component 30 is mounted on the other end of the crossbeam 20, and the wire clamp 40 is mounted on the bottom of the height limiting component 30.

[0020] The crossbar 20 includes a connecting rod 21, multiple sets of first insulators 22, and a set of second insulators 23. The connecting rod 21 has a one-sided forked design, with multiple forked ends 211 and a corresponding independent end 212. One end of each set of first insulators 22 is connected to one of the forked ends 211 of the connecting rod 21, and the other end of each set of first insulators 22 is connected to the mounting base plate 10. One set of first insulators 22 is perpendicular to the mounting base plate 10, and at least one other set of first insulators 22 is inclined upward relative to the mounting base plate 10 and located below the vertically set first insulators 22. One end of the second insulator 23 is connected to the independent end 212 of the connecting rod 21, and the second insulator 23 is at the same horizontal line as the vertically set first insulators 22.

[0021] Compared to the conventional downward-sloping triangular crossbeam 20 structure, the upward-sloping triangular crossbeam 20 structure of this testing device provides a more stable mounting support effect, effectively reducing the problem of accidental swaying or tilting of the crossbeam 20 during testing, which could affect the test results. The design of multiple sets of insulators forming a two-stage insulation structure more reliably prevents problems such as contact wire leakage, significantly improving the safety of device installation and use. It is understood that in this invention, the insulators can be connected to the mounting base plate 10 and connecting rod 21 via connecting lugs or other methods, which are standard practice in this field and will not be described further.

[0022] Specifically, in this embodiment, the crossbeam 20 includes three sets of first insulators 22, and the connecting rod 21 has three corresponding forked ends 211. One end of each of the three sets of first insulators 22 is connected to one of the three forked ends 211 of the connecting rod 21, and the other end of each set of first insulators 22 is connected to the mounting base plate 10. One set of first insulators 22 is perpendicular to the mounting base plate 10, while the other two sets of first insulators 22 are inclined upwards and downwards relative to the mounting base plate 10, respectively, and are located below and above the vertically set first insulators 22. The two sets of inclined first insulators 22 provide upward support and downward inclined stabilization to the main body of the crossbeam 20, further ensuring the stability of the crossbeam 20 and the height limiting component 30 mounted on the crossbeam 20.

[0023] The height limiting assembly 30 includes a sliding frame 31, an adjusting seat 32, a height limiting rod 33, and a linear guide rail assembly 34. The sliding frame 31 is installed on the outer end of the second insulator 23. The sliding frame 31 is provided with a free slide rail 311, and both ends of the free slide rail 311 are provided with first limiting blocks 312. The bottom of the adjusting seat 32 is provided with a free slider 321, which is engaged with the free slide rail 311, allowing the adjusting seat 32 to slide freely horizontally along the free slide rail 311. The height limiting rod 33 passes through the adjusting seat 32 in the vertical direction, and its lower end extends below the sliding frame 31. The lower end of the height limiting rod 33 is also provided with a guide rail slider 331. The linear guide rail assembly 34 includes a linear guide rail 341 and a connecting plate 342 located at the bottom of the linear guide rail 341. Each end of the linear guide rail 341 is also provided with a second limiting block 343. The linear guide rail 341 and the guide rail slider 331 are engaged to allow the linear guide rail assembly 344 to slide freely along the linear guide rail 341. The wire clamp 40 is installed at the bottom of the connecting plate 342. The limiting blocks effectively prevent the slider from derailing from the guide rail or slide rail.

[0024] When installing the height limiting device, the adjustable seat 32 can be slidable according to the different intervals between the crossbeam 20 and the contact wire, so that the height limiting rod 33 maintains a vertically corresponding height limit with the contact wire, ultimately enabling the detection equipment to accurately detect the pantograph pressure. The freely sliding linear guide rail assembly 34 at the bottom of the height limiting component 30 can dynamically compensate for the length changes of the contact wire caused by thermal expansion and contraction or different tensions, thereby enabling the detection equipment to make better contact with the contact wire for detection.

[0025] The height limiting component 30 also includes a limiting locking rod 35, and a corresponding limiting chuck 332 is provided on the height limiting rod 33. The height limiting rod 33 is rotatably adjustable for vertical extension and retraction, and the limiting locking rod 35 is installed on one side of the adjusting seat 32 and corresponds to the limiting chuck 332. The adjustable height limiting rod 33 can adjust its vertical extension and retraction length by rotating the rod, thus ensuring that the height limiting component 30 can still maintain good contact with the contact line when facing contact lines of different heights. The structure of the limiting locking rod 35 and the limiting chuck 332 can prevent the height limiting rod 33 from accidentally rotating and becoming loose from the contact line.

[0026] The wire clamp 40 includes two sets of clamping plates 41 and several connecting bolts 42. The two sets of clamping plates 41 are horizontally symmetrical and spaced apart from each other. Each set of clamping plates 41 has a limiting groove 411 on its upper and lower inner sides, wherein the limiting groove 411 on the upper side of the clamping plate 41 engages with the connecting plate 342 of the linear guide rail assembly 34. Each set of clamping plates 41 has several through-holes 412 on both sides, and these holes are arranged in a one-to-one correspondence. Several connecting bolts 42 pass through these holes 412 to connect the two sets of clamping plates 41. The flexible and detachable split-type wire clamp 40 allows for the selection of appropriate clamps 40 according to different types of contact wires during installation, thus enabling the height limiting device to adapt to the height limiting effect of various contact wires.

[0027] One end of the clamp 41 is rounded, and the inner upper and lower sides of the rounded end of the clamp 41 are provided with alignment grooves 413. The rounded corner and alignment grooves 413 design make it easier for the wire clamp 40 to engage with the contact wire. Any two adjacent connecting bolts 42 on the wire clamp 40 are arranged with opposite head and tail directions. The connecting bolts 42 are also provided with anti-loosening washers 421. The staggered arrangement of the connecting bolts 42 makes the wire clamp 40 more balanced, thereby reducing the risk of uneven mass distribution of the wire clamp 40 affecting the test results of the pressure testing equipment; the anti-loosening washers 421 further reduce the risk of the wire clamp 40 loosening.

[0028] Specifically, in this embodiment, the height limiting device 100 of the electric bus pantograph pressure detection equipment has two sets of clamps 40, which are arranged at a distance from each other at the bottom of the height limiting component 30. The two sets of clamps 40 enable a more stable and secure clamping connection between the height limiting device and the contact wire.

[0029] In summary, the beneficial effects of the height limiting device 100 for pantograph pressure detection equipment in electric passenger vehicles according to this utility model are as follows: By designing a height limiting device with an upwardly inclined support structure on the crossbeam 20, the pantograph pressure detection equipment becomes more stable and reliable during real-time detection. Furthermore, the crossbeam 20 is equipped with multiple sets of insulators, using two-stage insulation, which can more effectively prevent the possibility of electrical leakage from the contact wire. The height limiting component 30 is designed to be horizontally adjustable and slide along the extension direction of the crossbeam 20, accommodating contact wires with different pull-out values. Additionally, the linear guide rail assembly 34 can slide freely relative to the height limiting component 30, allowing for... The height limiting device can address the length changes of the contact wire caused by thermal expansion and contraction or different tensions. The adjustable and telescopic height limiting rod 33, in conjunction with the limiting locking rod 35, allows for flexible adjustment of the height of the height limiting rod 33 to match the contact wire. It also prevents inaccurate data caused by contact wire movement or offset due to other equipment or external forces, ensuring higher and more accurate detection. The separate wire clamp 40 allows for flexible matching with different types of contact wire detection, further enhancing the applicability of the detection device. This invention is highly practical and has significant potential for widespread application.

[0030] The embodiments described above illustrate only one implementation of the utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept, and these all fall within the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be determined by the appended claims.

Claims

1. A height limiting device for a pantograph pressure detection equipment in an electric passenger vehicle, characterized in that: The system includes a mounting base plate, a crossbeam, a height limiting component, and wire clamps. One end of the crossbeam is mounted on the mounting base plate, the height limiting component is mounted on the other end of the crossbeam, and the wire clamps are mounted on the bottom of the height limiting component. The crossbeam includes a connecting rod, multiple sets of first insulators, and a set of second insulators. The connecting rod has a one-sided forked design, with multiple forked ends and an opposing independent end. One end of each set of first insulators is connected to one of the forked ends of the connecting rod, and the other end of each set of first insulators is connected to the mounting base plate. One set of first insulators is perpendicular to the mounting base plate, and at least one set of first insulators is inclined upward relative to the mounting base plate and located below the vertically set first insulator. One end of the second insulator is connected to the independent end of the connecting rod, and the second insulator is at the same horizontal line as the vertically set first insulator.

2. The height limiting device of the pantograph pressure detection equipment for electric passenger vehicles as described in claim 1, characterized in that: The cross frame includes three sets of first insulators, and the connecting rod has three corresponding forks at its bifurcation ends. One end of each of the three sets of first insulators is connected to one of the three bifurcation ends of the connecting rod, and the other end of each of the three sets of first insulators is connected to the mounting base plate. One set of first insulators is vertically arranged relative to the mounting base plate, and the other two sets of first insulators are inclined upward and downward relative to the mounting base plate, respectively, and are located below and above the vertically arranged first insulator.

3. The height limiting device of the pantograph pressure detection equipment for electric passenger vehicles as described in claim 1, characterized in that: The height limiting assembly includes a sliding frame, an adjusting seat, a height limiting rod, and a linear guide rail assembly. The sliding frame is installed on the outer end of the second insulator, and a free slide rail is provided on the sliding frame, with first limiting blocks at both ends of the free slide rail. The bottom of the adjusting seat has a free slider, which is engaged with the free slide rail to allow the adjusting seat to slide freely horizontally along the free slide rail. The height limiting rod passes through the adjusting seat in the vertical direction, and its lower end extends below the sliding frame. A guide rail slider is also provided at the lower end of the height limiting rod. The linear guide rail assembly includes a linear guide rail and a connecting plate at the bottom of the linear guide rail. Second limiting blocks are provided at both ends of the linear guide rail. The linear guide rail and the guide rail slider are engaged to allow the linear guide rail assembly to slide freely along the linear guide rail. The wire clamp is installed at the bottom of the connecting plate.

4. The height limiting device of the pantograph pressure detection equipment for electric passenger vehicles as described in claim 3, characterized in that: The height limiting component also includes a limiting locking rod, on which a corresponding limiting chuck is provided; the height limiting rod can be rotatably adjusted to extend and retract vertically, and the limiting locking rod is installed on one side of the adjusting seat and is correspondingly set with the limiting chuck.

5. The height limiting device of the pantograph pressure detection equipment for electric passenger vehicles as described in claim 3, characterized in that: The clamp includes two sets of clamping plates and several connecting bolts; the two sets of clamping plates are horizontally symmetrical and spaced apart from each other, and the upper and lower sides of the inner side of the two sets of clamping plates are provided with limiting grooves, wherein the limiting grooves on the upper side of the clamping plates are engaged with the connecting plate of the linear guide rail assembly; the two sets of clamping plates are provided with several connecting screw holes that pass through both sides, and the several connecting screw holes on the two sets of clamping plates are arranged in a one-to-one correspondence, and the several connecting bolts pass through the several connecting screw holes to connect the two sets of clamping plates.

6. The height limiting device of the pantograph pressure detection equipment for electric passenger vehicles as described in claim 5, characterized in that: One end of the clip is rounded, and the inner upper and lower sides of the rounded end of the clip are provided with alignment slots.

7. The height limiting device of the pantograph pressure detection equipment for electric passenger vehicles as described in claim 5, characterized in that: Any two adjacent connecting bolts on the clamp are arranged with their head and tail directions opposite; the connecting bolts are also provided with anti-loosening washers.

8. The height limiting device of the pantograph pressure detection equipment for electric passenger vehicles as described in claim 1, characterized in that: The clamps are provided in two sets, and the two sets of clamps are arranged at an interval between each other at the bottom of the height limiting component.

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