Pantograph pressure on-line detection device

Abstract

The utility model discloses a pantograph pressure on-line detection device, and relates to the technical field of rail transit. The pantograph pressure online detection device comprises a mounting base and a first fixing frame connected with the mounting base, the first fixing frame is connected with a supporting frame through a first lifting mechanism, and the supporting frame is connected with a pull pressure sensor and a vertical insulating rod which are located on the two sides of the first fixing frame; the vertical insulating rod is hinged to the transverse insulating rod through the horizontal rotating shaft, the two ends of the transverse insulating rod are located on the two sides of the horizontal rotating shaft respectively, one end of the transverse insulating rod is connected with the pull pressure sensor through the pull rod, and the other end of the transverse insulating rod is connected with the contact network clamping assembly. The pressure acquisition of the pantograph acting on the contact network can be automatically completed by using the pull pressure sensor according to the lever principle, the dynamic online detection of the contact pressure between the locomotive pantograph and the contact network is realized, the turnover operation time of the locomotive is not occupied, the local power failure of the contact network is not needed, and the detection accuracy and safety are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail transit, in particular to a pantograph pressure on-line detection device. BACKGROUND

[0002] With the rapid development of rail transit, the operation efficiency and safety of high-speed trains and urban rail transit vehicles are increasingly improved. In these vehicles, the pantograph as a key component of the electric traction system directly affects the power supply stability and operation safety of the vehicle.

[0003] The pantograph transmits electric energy to the vehicle by contacting with the catenary, and provides power for the vehicle. When the contact pressure is too small, the pantograph is prone to be separated from the catenary along the line and produce arc; when the contact pressure is too large, the catenary along the line and the pantograph contact area are prone to have excessive lifting and produce local bending, causing fatigue damage of the catenary, and increasing wear of the catenary and the pantograph carbon slide, and even causing pantograph and catenary accidents. Therefore, when the vehicle is in the depot for maintenance, the contact pressure between the pantograph and the catenary needs to be detected.

[0004] The commonly used detection method is: when the vehicle enters the depot, the catenary is first partially powered off, and then the detection personnel climb onto the roof of the vehicle to manually complete the contact pressure detection of the catenary by using a pressure detection instrument. However, this manual detection method is time-consuming and laborious, and the accuracy is not high when the locomotive is stopped for detection, and the partial power-off detection method also has a high safety risk. CONTENT OF THE INVENTION

[0005] The present application aims to provide a pantograph pressure on-line detection device to solve the problem of low accuracy of detecting the pantograph pressure when the locomotive is stopped.

[0006] The technical scheme adopted by the present application to solve the technical problem is:

[0007] A pantograph pressure on-line detection device, comprising a mounting seat and a first fixed frame connected with the mounting seat, the first fixed frame is connected with a support frame through a first lifting mechanism, a tensile and compressive force sensor and a vertical insulating rod are connected on the support frame and located on both sides of the first fixed frame; the vertical insulating rod is hinged with a horizontal insulating rod through a horizontal rotating shaft, both ends of the horizontal insulating rod are located on both sides of the horizontal rotating shaft respectively, one end of the horizontal insulating rod is connected with the tensile and compressive force sensor through a pull rod, and the other end of the horizontal insulating rod is connected with a catenary clamping assembly.

[0008] Further, the first lifting mechanism comprises a first lead screw and a first nut threadedly connected with the first lead screw; the first lead screw is vertically arranged and rotationally connected with the first fixed frame, and the first nut is fixedly connected with the support frame.

[0009] Further, the support frame is connected with the first fixed frame through a first fixing member.

[0010] Further, a second fixed frame is connected to the mounting base, and the second fixed frame is connected with the support frame through a second lifting mechanism.

[0011] Further, the second lifting mechanism comprises a second screw rod and a second nut threadedly connected with the second screw rod, the second screw rod is vertically arranged and rotationally connected with the second fixed frame, and the second nut is fixedly connected with the support frame.

[0012] Further, the support frame is connected with the second fixed frame through a second fixing member.

[0013] Further, the transverse insulating rod is provided with a counterweight near one end of the pull rod.

[0014] Further, the transverse insulating rod is connected with the mounting base through an anti-loosening pull rope near one end of the pull rod.

[0015] Further, the contact net clamping assembly is connected with the transverse insulating rod through a rotary support, and a center line of the rotary support is vertically arranged.

[0016] Further, the contact net clamping assembly comprises a horizontally arranged sliding rail, a wire clamp fixed on the sliding rail, and a sliding seat slidingly fitted on the sliding rail, and the sliding seat is connected with the rotary support.

[0017] The beneficial effects of the present application are as follows:

[0018] The power collecting bow pressure on-line detection device provided by the embodiments of the present application automatically collects the pressure of the power collecting bow acting on the contact net by using the tension and compression force sensor according to the lever principle, and realizes the dynamic on-line detection of the contact pressure between the locomotive power collecting bow and the contact net. Compared with the existing detection method, the present application does not occupy the turnover operation time of the locomotive, and does not need to locally power off the contact net, thereby improving the detection accuracy and safety. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0020] Figure 1 is a structural schematic diagram of the power collecting bow pressure on-line detection device provided by the embodiments of the present application.

[0021] Figure 2 is a right view of Figure 1 ;

[0022] Figure 3 is a structural schematic view of the first lifting mechanism;

[0023] Figure 4 is a structural schematic view of the second lifting mechanism;

[0024] Figure 5 is a structural schematic view of the catenary clamping assembly.

[0025] Reference signs:

[0026] 10 - mounting seat;

[0027] 11 - first fixed frame;

[0028] 12 - first lifting mechanism;

[0029] 121 - first lead screw; 122 - first nut;

[0030] 13 - support frame;

[0031] 14 - tension sensor;

[0032] 15 - vertical insulating rod;

[0033] 16 - horizontal rotating shaft;

[0034] 17 - transverse insulating rod;

[0035] 18 - pull rod;

[0036] 19 - catenary clamping assembly;

[0037] 191 - slide rail; 192 - wire clamp; 193 - slide base;

[0038] 20 - first fixed part;

[0039] 21 - second fixed frame;

[0040] 22 - second lifting mechanism;

[0041] 221 - second lead screw;

[0042] 222 - second nut;

[0043] 23 - second fixed part;

[0044] 24 - counterweight;

[0045] 25 - anti-loose pull rope;

[0046] 26 - rotary support;

[0047] 27-sensor slider;

[0048] 28-insulating rod slider. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0050] In the description of the present application, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "inner", "outer" and the like is the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise specified, the above orientation description can be flexibly arranged in the actual application process under the condition of meeting the relative positional relationship shown in the drawings.

[0051] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] Referring to Figure 1 , Figure 2 The embodiment of the present application provides a pantograph pressure on-line detection device, which comprises a mounting seat 10 and a first fixed frame 11 connected with the mounting seat 10, the first fixed frame 11 is connected with a support frame 13 through a first lifting mechanism 12, and a tensile and compressive force sensor 14 and a vertical insulating rod 15 located on both sides of the first fixed frame 11 are connected on the support frame 13; the vertical insulating rod 15 is hinged with a horizontal insulating rod 17 through a horizontal rotating shaft 16, both ends of the horizontal insulating rod 17 are located on both sides of the horizontal rotating shaft 16 respectively, one end of the horizontal insulating rod 17 is connected with the tensile and compressive force sensor 14 through a pull rod 18, and the other end of the horizontal insulating rod 17 is connected with a contact net clamping assembly 19.

[0053] The mounting base 10 is used for being fixed on a column outside a track to mount and support other components in the detection device. The mounting base 10 can be a horizontally arranged rectangular frame structure, the first fixed frame 11 is supported above the mounting base 10 and fixedly connected with the mounting base 10, the first fixed frame 11 has an inner cavity, the inner cavity is open at both ends along the length direction of the mounting base 10. The support frame 13 passes through the inner cavity of the first fixed frame 11 and is connected with the first fixed frame 11 through the first lifting mechanism 12, so that the first fixed frame 11 can be used to mount and support the support frame 13 and bear the load of the support frame 13, and the first lifting mechanism 12 can be used to drive the support frame 13 to ascend and descend in the inner cavity of the first fixed frame 11 to adjust the mounting height of the support frame 13.

[0054] The tension and compression force sensor 14 and the vertical insulating rod 15 are arranged on both sides of the first fixed frame 11 and connected with the support frame 13, the vertical insulating rod 15 is vertically arranged below the support frame 13, the upper end of the vertical insulating rod 15 is fixedly connected with the support frame 13, and the vertical insulating rod 15 can be made of a vertical insulator. The horizontal insulating rod 17 is horizontally arranged below the vertical insulating rod 15, the horizontal insulating rod 17 is hingedly connected with the lower end of the vertical insulating rod 15 through the horizontal rotating shaft 16, so that the horizontal insulating rod 17 can be flipped up and down in the vertical plane around the horizontal rotating shaft 16, and the horizontal insulating rod 17 forms a lever. The two ends of the horizontal insulating rod 17 are located on both sides of the horizontal rotating shaft 16, one end of the horizontal insulating rod 17 is connected with the tension and compression force sensor 14 through the pull rod 18, and the other end is connected with the contact net clamping assembly 19, the contact net clamping assembly 19 is used for being connected with the contact net. The horizontal insulating rod 17 can include two coaxially arranged horizontal insulators, the two horizontal insulators are fixedly connected through an insulator connecting piece, and the horizontal rotating shaft 16 is arranged on the insulator connecting piece.

[0055] Referring to Figure 1 The power collecting bow pressure online detection device provided by the embodiment of the application can detect the contact pressure between the power collecting bow and the contact net online. The specific detection process is as follows:

[0056] First, the mounting base 10 is installed on the column outside the track, and the contact net clamping assembly 19 is connected with the contact net; then, when the running locomotive passes through the place, the pantograph on the locomotive lifts the contact wire from the bottom to the top, so that the contact pressure between the contact net and the pantograph is generated, the contact pressure acts on the right end of the transverse insulating rod 17 through the contact net clamping assembly 19, the right end of the transverse insulating rod 17 is subjected to the upward thrust, since the transverse insulating rod 17 can rotate around the horizontal rotating shaft 16, the left end of the transverse insulating rod 17 generates the downward pulling force, the pulling force acts on the tension-compression force sensor 14 through the pull rod 18, so as to measure the size of the pulling force by using the tension-compression force sensor 14; then, the tension-compression force sensor 14 transmits the measured data to the terminal such as a processor, a computer or the like through a wired or wireless mode, and the terminal completes the pressure evaluation and display.

[0057] The pantograph pressure online detection device provided by the embodiment of the application automatically completes the pressure collection of the pantograph acting on the contact net by using the tension-compression force sensor in the lever principle, realizes the dynamic online detection of the contact pressure between the locomotive pantograph and the contact net, and compared with the existing detection mode, does not occupy the turnaround operation time of the locomotive, does not need to partially power off the contact net, and improves the detection accuracy and safety.

[0058] The pantograph pressure online detection device provided by the embodiment of the application sets the tension-compression force sensor 14 and the vertical insulating rod 15 on the two sides of the first fixed frame 11, so that the forces of the tension-compression force sensor 14 and the vertical insulating rod 15 on the support frame 13 are correspondingly distributed on the two sides of the first fixed frame 11, the forces on the two sides can offset each other, the stress on the support frame 13 is more balanced, the inclination or deviation of the support frame 13 is reduced, and thus the stability of the whole device is improved, which is helpful to prolong the service life.

[0059] In some embodiments, referring to Figure 3 , the first lifting mechanism 12 includes a first lead screw 121 and a first nut 122 threadedly connected with the first lead screw 121; the first lead screw 121 is vertically arranged and rotationally connected with the first fixed frame 11, and the first nut 122 is fixedly connected with the support frame 13. The first lead screw 121 can be connected with the first fixed frame 11 through a bearing structure, so that it can rotate around its own axis. In operation, the first lead screw 121 is rotated to drive the first nut 122 to move up and down, and the first nut 122 drives the support frame 13 to move up and down, so as to adjust the height of the support frame 13.

[0060] For example, referring to Figure 3The first lead screw 121 includes two, two first lead screws 121 are arranged on the left and right sides of the support frame 13, and the two first lead screws 121 are respectively connected with the first nut 122, and the two first nuts 122 are fixed on the left and right sides of the support frame 13. This structure can make the stress of the support frame 13 more balanced, reduce the inclination or deviation of the support frame 13, and improve the stability and firmness of the connection between the support frame 13 and the first fixed frame 11. When operating, the two first lead screws 121 are rotated at the same time, so that the height of the support frame 13 can be adjusted.

[0061] In other embodiments, the first lifting mechanism 12 can also include a jack, a scissor lifting mechanism, a curved arm lifting mechanism, etc., which is not limited here.

[0062] In some embodiments, referring to Figure 3 The support frame 13 is further connected with the first fixed frame 11 through the first fixing part 20. Correspondingly, the first fixing part 20 is used to connect the support frame 13 with the first fixed frame 11, which can further improve the firmness of the connection between the support frame 13 and the first fixed frame 11, and also can reduce the load borne by the first lead screw 121 and improve the service life of the first lead screw 121. When the height of the support frame 13 needs to be adjusted, the first fixing part 20 is removed first, and then the first fixing part 20 is installed after the height adjustment of the support frame 13 is completed.

[0063] For example, the first fixing part 20 can include a first bolt, which is screwed with the support frame 13 after passing through the first fixed frame 11. The first fixed frame 11 is provided with a first bolt hole for the first bolt to pass through, and the support frame 13 is provided with a first threaded hole for the first bolt to be screwed. For example, the first bolt hole can be a round hole or an oblong hole. When the first bolt hole is a round hole, it includes a plurality of first bolt holes which are arranged at intervals from top to bottom. When the first bolt hole is an oblong hole, the length direction of the oblong hole is vertically arranged. Both of these two structures can adjust the installation height of the first bolt. Of course, the first fixing part 20 can also include a pin shaft, a fixed clamp, a fixed flange and other structures, as long as it can connect the support frame 13 with the first fixed frame 11, which is not limited here.

[0064] In some embodiments, referring to Figure 1 The mounting seat 10 is further connected with a second fixed frame 21, the second fixed frame 21 is connected with the support frame 13 through a second lifting mechanism 22, and the tension and compression force sensor 14 is located between the first fixed frame 11 and the second fixed frame 21.

[0065] Specifically, the second fixed frame 21 is supported above the support frame 13 and fixedly connected with the mounting base 10, and has an inner cavity in the second fixed frame 21, which is open at both ends along the length direction of the mounting base 10. The left end of the support frame 13 is arranged in the inner cavity of the second fixed frame 21 and connected with the second fixed frame 21 through the second lifting mechanism 22. Thus, the second fixed frame 21 can be used to mount and support the support frame 13 and bear the load of the support frame 13, and the second lifting mechanism 22 can be used to drive the support frame 13 to lift in the inner cavity of the second fixed frame 21 to adjust the mounting height of the support frame 13.

[0066] Correspondingly, the support frame 13 can be mounted and supported by the second fixed frame 21 and the first fixed frame 11 together, which can further improve the stability and reliability of the support frame 13 after being mounted, thereby improving the stability of the entire device and prolonging the service life thereof.

[0067] In some embodiments, referring to Figure 4 , the second lifting mechanism 22 includes a second lead screw 221 and a second nut 222 threadedly connected with the second lead screw 221, and the second lead screw 221 is vertically arranged and rotationally connected with the second fixed frame 21, and the second nut 222 is fixedly connected with the support frame 13. The second lead screw 221 can be fixedly connected with the second fixed frame 21 through a bearing structure to rotate about its own axis. In operation, the second lead screw 221 is rotated to drive the second nut 222 to move up and down, and the second nut 222 drives the support frame 13 to move up and down to adjust the height of the support frame 13. It should be noted that when adjusting the height of the support frame 13, the first lead screw 121 and the second lead screw 221 should be controlled to rotate at the same time to avoid being stuck. The first nut 122 and the second nut 222 can also be connected together through a lifting plate.

[0068] For example, referring to Figure 4 , the second lead screw 221 can include two, which are arranged on the left and right sides of the support frame 13, and the second nut 222 is connected with each of the two second lead screws 221, and the two second nuts 222 are fixed on the left and right sides of the support frame 13. This structure can make the force on the support frame 13 more balanced, reduce the inclination or deviation of the support frame 13, and improve the stability and firmness of the connection between the support frame 13 and the second fixed frame 21. In operation, the two second lead screws 221 are rotated at the same time to adjust the height of the support frame 13.

[0069] In other embodiments, the second lifting mechanism 22 can also include a jack, a scissor lifting mechanism, a crank arm lifting mechanism, etc., which are not limited here.

[0070] In some embodiments, referring to Figure 4The support frame 13 is also connected with the second fixed frame 21 through the second fixing member 23. Correspondingly, the support frame 13 is connected with the second fixed frame 21 through the second fixing member 23, which can further improve the firmness of the connection between the support frame 13 and the second fixed frame 21, and also can reduce the load borne by the second screw rod 221, and improve the service life of the second screw rod 221. When it is needed to adjust the height of the support frame 13, the second fixing member 23 is first removed, and then the second fixing member 23 is installed after the height adjustment of the support frame 13 is completed.

[0071] For example, the second fixing member 23 can include a second bolt, which is screwed with the support frame 13 after passing through the second fixed frame 21. The second fixed frame 21 is provided with a second bolt hole for the second bolt to pass through, and the support frame 13 is provided with a second threaded hole for the second bolt to be screwed with. For example, the second bolt hole can be a round hole or an oblong hole. When the second bolt hole is a round hole, a plurality of second bolt holes are provided at intervals from top to bottom. When the second bolt hole is an oblong hole, the length direction of the oblong hole is vertically arranged. Both of the two structures can adjust the installation height of the second bolt. Of course, the second fixing member 23 can also include a pin shaft, a fixing clamp, a fixing flange and other structures, as long as the support frame 13 can be connected with the second fixed frame 21, which is not limited here.

[0072] In some embodiments, referring to Figure 1 The end of the transverse insulating rod 17 close to the pull rod 18 is provided with a counterweight 24. Correspondingly, the counterweight 24 can balance the weight of the catenary clamping assembly 19, so that the gravity of the transverse insulating rod 17 on both sides of the horizontal rotating shaft 16 remains balanced when the locomotive is not passing, so that the pressure detection result is more accurate.

[0073] In some embodiments, referring to Figure 1 The end of the transverse insulating rod 17 close to the pull rod 18 is connected with the mounting seat 10 through an anti-loosening pull rope 25. Correspondingly, the anti-loosening pull rope 25 serves as an anti-loosening measure, which can prevent the transverse insulating rod 17 from swinging or shifting downward when the connection position between the pull rod 18 and the pull-pressure sensor 14 and the transverse insulating rod 17 is loosened or falls off due to vibration or accidental impact, and enhances the stability, reliability and safety of the structure.

[0074] In some embodiments, referring to Figure 1The tension and compression force sensor 14 can be slidably connected with the support frame 13 through a sensor sliding block 27, and the vertical insulating rod 15 can be slidably connected with the support frame 13 through an insulating rod sliding block 28. The sensor sliding block 27 and the insulating rod sliding block 28 can move along the axial direction of the transverse insulating rod 17 on the support frame 13, so that the horizontal position of the catenary clamping assembly 19 can be adjusted. After the horizontal position of the catenary clamping assembly 19 is adjusted, the sensor sliding block 27 and the insulating rod sliding block 28 can be fixedly connected with the support frame 13 through bolts or other fasteners.

[0075] In some embodiments, referring to Figure 1 , Figure 2 The catenary clamping assembly 19 is connected with the transverse insulating rod 17 through a rotary support 26, and the center line of the rotary support 26 is vertically arranged. The rotary support 26 is also called a joint of the machine, and is an important transmission element required by a machine that needs to rotate relative to two objects and simultaneously bear axial force, radial force and overturning moment. The catenary clamping assembly 19 can be driven to rotate around the center line of the rotary support 26 by the rotary support 26, so as to adjust the azimuth of the catenary clamping assembly 19 in the horizontal plane.

[0076] The catenary clamping assembly 19 can include wire clamps for clamping the catenary. In some embodiments, referring to Figure 5 The catenary clamping assembly 19 includes a horizontally arranged sliding rail 191, wire clamps 192 fixed on the sliding rail 191, and a sliding seat 193 slidably fitted on the sliding rail 191. The sliding seat 193 is connected with the rotary support 26. One, two or more wire clamps 192 can be fixed on the sliding rail 191.

[0077] In use, the catenary is clamped by the wire clamps 192 to realize the connection between the detection device and the catenary. When the catenary deforms due to temperature difference change or vibration, the sliding rail 191 can slide relative to the sliding seat 193, and the sliding seat 193 can rotate around the vertical center line of the rotary support 26, so as to adapt to the deformation of the catenary and effectively eliminate the influence of the deformation caused by the temperature change and vibration of the catenary.

[0078] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed in the present application can be easily thought of by those skilled in the art, and should be covered within the protection scope of the present application.

Claims

1. A pantograph pressure on-line detection device, characterized in that, The utility model provides a contact net clamp assembly, including the mounting base (10) and with first fixed frame (11) of mounting base (10) is connected, first fixed frame (11) is connected with support frame (13) through first lifting mechanism (12), support frame (13) is connected with the pull pressure sensor (14) and vertical insulating pole (15) on both sides of first fixed frame (11); Vertical insulating pole (15) is hinged with horizontal pivot (16) and transverse insulating pole (17), both ends of transverse insulating pole (17) are located on both sides of horizontal pivot (16) respectively, one end of transverse insulating pole (17) is connected with pull pressure sensor (14) through pull rod (18), the other end of transverse insulating pole (17) is connected with contact net clamp assembly (19).

2. The pantograph pressure on-line detection device according to claim 1, characterized in that, First lifting mechanism (12) includes first screw rod (121) and first nut (122) of screw thread connection with first screw rod (121);First screw rod (121) is vertically arranged and is rotatably connected with first fixed frame (11), and first nut (122) is fixedly connected with support frame (13).

3. The pantograph pressure on-line detection device according to claim 1 or 2, characterized in that, Support frame (13) is also connected with first fixed frame (11) through first fixing part (20).

4. The pantograph pressure on-line detection device according to claim 1, characterized in that, Second fixed frame (21) is also connected on mounting base (10), second fixed frame (21) is connected with support frame (13) through second lifting mechanism (22), and pull pressure sensor (14) is located between first fixed frame (11) and second fixed frame (21).

5. The pantograph pressure on-line detection device according to claim 4, characterized in that, Second lifting mechanism (22) includes second screw rod (221) and second nut (222) of screw thread connection with second screw rod (221);Second screw rod (221) is vertically arranged and is rotatably connected with second fixed frame (21), and second nut (222) is fixedly connected with support frame (13).

6. The pantograph pressure on-line detection device according to claim 4 or 5, characterized in that, Support frame (13) is also connected with second fixed frame (21) through second fixing part (23).

7. The pantograph pressure on-line detection device according to claim 1, characterized in that, One end of transverse insulating pole (17) close to pull rod (18) is equipped with counterweight (24).

8. The pantograph pressure on-line detection device according to claim 1, characterized in that, One end of transverse insulating pole (17) close to pull rod (18) is connected with mounting base (10) through anti-loosening pull rope (25).

9. The pantograph pressure on-line detection device according to claim 1, characterized in that, Contact net clamp assembly (19) is connected with transverse insulating pole (17) through gyration support (26), and the center line of gyration support (26) is vertically arranged.

10. The pantograph pressure on-line detection device according to claim 9, characterized in that, Contact net clamp assembly (19) includes horizontally arranged slide rail (191), wire clamp (192) fixed on slide rail (191), sliding seat (193) slidingly fitted on slide rail (191), sliding seat (193) is connected with gyration support (26).

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