A working grounding device for overhead contact line safety measures

Abstract

The present invention provides a contact network safety measure operation grounding device, comprising: a telescopic top rod installed on the support along the vertical direction of the contact network support, a driving device installed at the bottom of the telescopic top rod, a contact line wrist arm grounding contact arm installed at the top of the support, one end of the contact line wrist arm grounding contact arm is hinged on the telescopic top rod, the other end of the contact line wrist arm grounding contact arm stands between the two wrist arms of the contact line along the vertical direction of the support and has no contact with the wrist arms, a positive feeder grounding contact arm is installed at the top of the support and arranged opposite to the contact line grounding contact arm, one end of the positive feeder grounding contact arm is hinged at the top of the telescopic top rod, and the other end of the positive feeder grounding contact arm is suspended and installed above the positive feeder jacket. The contact network safety measure operation grounding device can use electric control or manual control to complete the hanging and removing operations of the grounding wire, effectively solve the disadvantages brought by manual hanging and removing operations of the grounding wire, improve work efficiency, and make operations safer.

Description

Technical Field

[0001] The invention relates to a grounding device, in particular to a contact network safety measure operation grounding device. Background Art

[0002] In the electrified railway traction power supply system, daily maintenance is essential to ensure the normal operation of the railway system. During daily maintenance or emergency repairs, the overhead contact network in the maintenance section needs to be powered off, and ground wires need to be hung at both ends of the operation section to ensure the safety of the workers. For various power supply methods of the traction network, for example, safety measures operations under the direct supply method require the contact line to be grounded, and safety measures operations under the AT power supply method require the contact line and the positive feeder to be grounded. The traditional grounding link is completed manually. After the safety measures operation of the substation is completed, the on-site staff will first test the electricity, and then use the grounding rod to hang or remove the ground wire under the contact line, positive feeder, etc. However, manual operation has the disadvantages of low safety guarantee, low efficiency, and high intensity. In addition, for the safe operation of the overhead contact network with large dispersion and long distance, the manual operation method can no longer meet the requirements of efficient and safe operation. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a contact network safety measure grounding device, which can use electric control or manual control to complete the hanging and removing operations of the grounding wire, and has an intelligent interface. Through the automated cloud platform, remote monitoring of the grounding device can be achieved, effectively solving the drawbacks of manual hanging and removing of the grounding wire operations, improving work efficiency, and making operations safer.

[0004] To realize the above technical scheme, the present invention provides a contact network safety measure operation grounding device, comprising: a telescopic top rod installed on the contact network support along the vertical direction of the support, a driving device installed at the bottom of the telescopic top rod, a contact line wrist arm grounding contact arm installed at the top of the support, one end of the contact line wrist arm grounding contact arm is hinged on the telescopic top rod, the other end of the contact line wrist arm grounding contact arm stands between the two wrist arms of the contact line along the vertical direction of the support, and has no contact with the wrist arms, a positive feeder grounding contact arm is installed on the top of the support and is arranged opposite to the contact line wrist arm grounding contact arm, one end of the positive feeder grounding contact arm is hinged at the top of the telescopic top rod, the other end of the positive feeder grounding contact arm is suspended above the jacket installed on the positive feeder, the middle part of the positive feeder grounding contact arm is fixed on the positive feeder shoulder frame through a base, and the positive feeder jacket is installed on the positive feeder at the contact position with the positive feeder grounding contact arm.

[0005] In the above technical scheme, in actual operation, when the contact network is inspected and the safety measures are grounded, the telescopic top rod is driven to move upward by the manual control driving device, and the contact line wrist arm grounding contact arm and the positive feeder grounding contact arm connected to the telescopic top rod move downward under the action of the lever, at which time the contact line wrist arm grounding contact arm contacts the contact line wrist arm, the positive feeder grounding contact arm contacts the positive feeder jacket, and the wrist arm is electrically connected to the contact line, thereby achieving the purpose of grounding the contact line and the positive feeder, and realizing the grounding measures of the contact line and the positive feeder. When the safety measures need to be removed, the telescopic top rod is driven to move downward by the manual reverse operation driving device, and the contact line wrist arm grounding contact arm and the positive feeder grounding contact arm are restored to the initial state, realizing the removal of the grounding measures of the contact line and the positive feeder.

[0006] Preferably, the contact line wrist arm grounding contact arm comprises a contact line wrist arm grounding contact arm rocker arm, a contact line wrist arm grounding contact arm base, a contact line wrist arm grounding contact arm spring hinge, a contact line wrist arm grounding contact arm automatic recovery spring, a contact line wrist arm grounding contact arm insulating rod, a contact line wrist arm grounding contact arm contact and a rotating shaft, wherein the contact line wrist arm grounding contact arm base is provided with a support ear, the bottom of the contact line wrist arm grounding contact arm insulating rod is fixed to the support ear of the contact line wrist arm grounding contact arm base through a rotating shaft, one end of the contact line wrist arm grounding contact arm rocker arm is hinged on the telescopic top rod, the other end of the contact line wrist arm grounding contact arm rocker arm is hinged to one end of the rotating shaft through the contact line wrist arm grounding contact arm spring hinge, the contact line wrist arm grounding contact arm automatic recovery spring is installed on the end of the rotating shaft opposite to the contact line wrist arm grounding contact arm spring hinge, and the contact of the contact line wrist arm grounding contact arm is installed on the top of the contact line wrist arm grounding contact arm insulating rod. During actual operation, the base of the contact line wrist grounding contact arm is fixed on the pillar by an angle clamp, the spring hinge of the contact line wrist grounding contact arm connects the insulating rod of the contact line wrist grounding contact arm and the rotating shaft of the contact line wrist grounding contact arm rocker, and provides clamping force for the contact line wrist grounding contact arm rocker, the automatic recovery spring of the contact line wrist grounding contact arm bears reverse force when the contact of the contact line wrist grounding contact arm is connected to the wrist, and when the contact of the contact line wrist grounding contact arm is disconnected from the wrist, the spring pre-torque can be used to ensure that the contact of the contact line wrist grounding contact arm can be quickly separated from the wrist and restored to its initial state.

[0007] Preferably, the contact of the contact wire arm grounding contact arm is hinged on the top of the insulating rod of the contact wire arm grounding contact arm and retains a free movement margin within the range of ±7.5°, avoiding the influence of incomplete contact caused by different installation processes, and effectively ensuring the contact area. The insulating rod of the contact wire arm grounding contact arm can effectively insulate and isolate the contact of the contact wire arm grounding contact arm from the rocker mechanism of the contact wire arm grounding contact arm, ensuring the safety of the operator.

[0008] Preferably, the contact wire arm grounding contact arm contact is embedded with a magnet, and when the contact wire arm grounding contact arm contact contacts the arm, the magnet can better and reliably contact the arm.

[0009] Preferably, the positive feeder grounding contact arm comprises a positive feeder grounding contact arm rocker arm, a positive feeder grounding contact arm base, a positive feeder grounding contact arm automatic recovery spring, a positive feeder grounding contact arm insulating rod and a positive feeder grounding contact arm contact, wherein one end of the positive feeder grounding contact arm rocker arm is hinged at the top of the telescopic top rod, the positive feeder grounding contact arm base is fixedly mounted on the positive feeder shoulder frame, the positive feeder grounding contact arm base is connected to the positive feeder grounding contact arm rocker arm through an automatic recovery spring, the positive feeder grounding contact arm insulating rod is sleeved on the positive feeder rocker arm, the positive feeder grounding contact arm contact is hinged at the front end of the positive feeder grounding contact arm insulating rod, the positive feeder grounding contact arm contact has a free movement margin within the range of ±7.5°, the positive feeder grounding contact arm contact is suspended above the positive feeder, and a jacket is provided on the positive feeder for good contact with the positive feeder grounding contact arm. During the actual working process, the automatic recovery spring of the positive feeder grounding contact arm bears the reverse force when the positive feeder grounding contact arm contact is connected to the positive feeder. When the positive feeder grounding contact arm contact is disconnected from the positive feeder, the spring pre-torque can ensure that the positive feeder grounding contact arm contact can quickly separate from the positive feeder jacket and return to the initial state. In addition, it can ensure that when the contact network is operating normally, it will not be affected by external factors and cause the device to malfunction, ensuring safety and reliability. The insulating rod of the positive feeder grounding contact arm can effectively insulate and isolate the positive feeder grounding contact arm contact from the positive feeder grounding contact arm rocker mechanism to ensure the safety of operators; the positive feeder grounding contact arm contact has a free activity margin within the range of ±7.5° to avoid the influence of incomplete contact caused by different installation processes and effectively ensure the contact area.

[0010] Preferably, a magnet is embedded in the positive feeder grounding contact arm contact, and when the positive feeder grounding contact arm contact contacts the positive feeder jacket, the magnet can better and reliably contact the positive feeder jacket.

[0011] Preferably, the telescopic mandrel includes a first mandrel joint, a second mandrel joint, a limit contact ring spring, a limit contact ring, an angle hoop, a third mandrel joint and a mandrel body, wherein the first mandrel joint is installed at the top of the mandrel body and is hinged to the positive feeder grounding contact arm, the second mandrel joint is installed at the upper half of the mandrel body and is located below the first mandrel joint, the second mandrel joint is hinged to the contact line wrist arm grounding contact arm, the mandrel body is fixed to the support through an angle hoop, the limit contact ring spring and the limit contact ring are respectively sleeved on the mandrel body, and the third mandrel joint is installed at the bottom of the mandrel body and connected to the driving device. In the actual working process, the up and down movement of the telescopic mandrel drives and controls the movement of the contact line wrist arm grounding contact arm and the positive feeder grounding contact arm, thereby realizing the implementation or removal of the contact network safety operation grounding measures, and the limit contact ring is used to limit the up and down travel range of the telescopic mandrel, and can be used as an in-place signal to feed back to the electronic control unit. The limit contact ring spring is used to ensure that the contact arm is fully in place or restored, and a certain buffer margin is left for the up and down travel.

[0012] Preferably, the driving device comprises a worm gear, a handle and a DC motor, wherein the worm gear is connected to the third push rod joint at the bottom of the telescopic push rod, the DC motor is mounted on the worm gear, and the handle is connected to the worm gear through a rotating shaft. The DC motor can automatically control the rotation of the worm gear and thus control the lifting and lowering of the telescopic push rod, and the rotation of the worm gear can also be manually adjusted by the handle to manually control the lifting and lowering of the telescopic push rod.

[0013] The beneficial effects provided by the present invention are:

[0014] 1) The contact network safety measures grounding device has a simple structure, reasonable design, high degree of automation and convenient operation. In actual operation, when the contact network is under maintenance and grounding for safety measures, the telescopic top rod is driven upward by the manual control driving device, and the contact line wrist arm grounding contact arm and the positive feeder grounding contact arm connected to the telescopic top rod move downward under the action of the lever. At this time, the contact line wrist arm grounding contact arm contacts the contact line wrist arm, the positive feeder grounding contact arm contacts the positive feeder jacket, and the wrist arm is electrically connected to the contact line, thereby achieving the purpose of grounding the contact line and the positive feeder, and realizing the grounding measures operation of the contact line and the positive feeder. When the safety measures need to be removed, the telescopic top rod is driven downward by the manual reverse operation driving device, and the contact line wrist arm grounding contact arm and the positive feeder grounding contact arm are restored to the initial state, realizing the removal of the grounding measures of the contact line wrist arm and the positive feeder.

[0015] 2) The contact network safety measure grounding device can use electric control or manual control to complete the hanging and removing operations of the grounding wire, and has an intelligent interface. It can realize remote monitoring of the grounding device through the automated cloud platform, effectively solving the drawbacks of manual hanging and removing of the grounding wire, improving work efficiency, and making operations safer.

[0016] 3) This contact network safety measures operation grounding device is compatible with contact network safety measures operations with various power supply methods and is highly practical; it has electric control and manual operation mechanisms, which improves reliability and work efficiency. The electric control unit has a reserved intelligent interface for easy access to the automation cloud platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the grounding device in the initial state or the grounding removal state in the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of the grounding device after the ground wire operation is hung in the present invention.

[0019] Figure 3 It is a schematic structural diagram of the contact line arm grounding contact arm in the present invention.

[0020] Figure 4 It is a structural schematic diagram of the positive feeder grounding contact arm in the present invention.

[0021] Figure 5 It is a schematic structural diagram of the telescopic top rod in the present invention.

[0022] Figure 6 It is a schematic diagram of the enlarged local structure of the telescopic top rod in the present invention.

[0023] Figure 7 It is a schematic diagram of the structure of the driving device in the present invention.

[0024] In the figure: 1. contact line wrist arm grounding contact arm; 11. contact line wrist arm grounding contact arm rocker; 12. contact line wrist arm grounding contact arm base; 13. contact line wrist arm grounding contact arm spring hinge; 14. contact line wrist arm grounding contact arm automatic recovery spring; 15. contact line wrist arm grounding contact arm insulation rod; 16. contact line wrist arm grounding contact arm contact; 17. rotating shaft; 2. positive feeder grounding contact arm; 21. positive feeder grounding contact arm rocker; 22. positive feeder grounding contact arm base; 23. positive feeder grounding contact arm automatic recovery spring Restoring spring; 24. Insulating rod of positive feeder grounding contact arm; 25. Contact of positive feeder grounding contact arm; 3. Telescopic push rod; 31. First push rod joint; 32. Second push rod joint; 33. Limit contact ring spring; 34. Limit contact ring; 35. Angle clamp; 36. Third push rod joint; 37. Push rod body; 4. Driving device; 41. Worm gear driving mechanism; 42. Handle; 43. DC motor; 5. Positive feeder jacket; 6. Support column; 7. Wrist arm; 8. Positive feeder shoulder frame; 9. Insulator string; 10. Positive feeder. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary persons in the art without creative work are within the scope of protection of the present invention.

[0026] Embodiment: A contact network safety measure operation grounding device.

[0027] Reference Figures 1 to 7 As shown, the contact line and the positive feeder 10 are respectively erected on the top of the pillar 6 through supporting devices such as the wrist arm 7 and the positive feeder shoulder frame 8. The contact network safety measure operation grounding device includes: a telescopic top rod 3 installed on the pillar 6 along the vertical direction of the pillar 6, a positive feeder jacket 5 is installed on the positive feeder 10 to facilitate good contact of the positive feeder grounding device, a driving device 4 is installed at the bottom of the telescopic top rod 3, a contact line wrist arm grounding contact arm 1 is installed on the top of the pillar 6, one end of the contact line wrist arm grounding contact arm 1 is hinged on the telescopic top rod 3, in the initial state, the contact line wrist arm grounding contact arm 1 is erected upward along the vertical direction of the pillar 6 between the two wrist arms 7 of the contact line, and has no contact with the wrist arms 7, the positive feeder grounding contact arm 2 is installed on the top of the pillar 6 and is arranged opposite to the contact line wrist arm grounding contact arm 1, one end of the positive feeder grounding contact arm 2 is hinged at the top of the telescopic top rod 3, in the initial state, the other end of the positive feeder grounding contact arm 2 is suspended above the positive feeder 10. In actual operation, when the contact network is under maintenance and grounding of safety measures, the telescopic top rod 3 is driven to move upward by the manual control driving device 4, and the contact line wrist arm grounding contact arm 1 and the positive feeder grounding contact arm 2 connected to the telescopic top rod 3 move downward under the action of the lever. At this time, the contact line wrist arm grounding contact arm 1 contacts the wrist arm 7, the positive feeder grounding contact arm 2 contacts the positive feeder jacket 5, and the wrist arm is electrically connected to the contact line, thereby achieving the purpose of grounding the contact line and the positive feeder, and realizing the grounding measures of the contact line and the positive feeder. When it is necessary to remove the safety measures, the telescopic top rod 3 is driven to move downward by the manual reverse operation driving device 4, and the contact line wrist arm grounding contact arm 1 and the positive feeder grounding contact arm 2 are restored to the initial state, realizing the removal of the grounding measures of the contact line and the positive feeder.

[0028] Reference Figure 2 and Figure 3As shown, the contact wire arm grounding contact arm 1 comprises a contact wire arm grounding contact arm rocker arm 11, a contact wire arm grounding contact arm base 12, a contact wire arm grounding contact arm spring hinge 13, a contact wire arm grounding contact arm automatic recovery spring 14, a contact wire arm grounding contact arm insulating rod 15, a contact wire arm grounding contact arm contact 16 and a rotating shaft 17, wherein the contact wire arm grounding contact arm base 12 is provided with a support ear, and the bottom of the contact wire arm grounding contact arm insulating rod 15 is fixed to the contact wire arm through the rotating shaft 17. On the support ear of the grounding contact arm base 12, one end of the contact line wrist arm grounding contact arm rocker arm 11 is hinged on the telescopic top rod 3, and the other end of the contact line wrist arm grounding contact arm rocker arm 11 is hinged to one end of the rotating shaft 17 through the contact line wrist arm grounding contact arm spring hinge 13, the contact line wrist arm grounding contact arm automatic recovery spring 14 is installed on the rotating shaft 17 at the end opposite to the contact line wrist arm grounding contact arm spring hinge 13, and the contact line wrist arm grounding contact arm contact 16 is installed on the top of the contact line wrist arm grounding contact arm insulating rod 15. In actual operation, the contact line arm grounding contact arm base 12 is fixed on the pillar 6 through an angle hoop, the contact line arm grounding contact arm spring hinge 13 connects the contact line arm grounding contact arm insulating rod 15 and the contact line arm grounding contact arm rocker 11 with the rotating shaft 17, and provides a pressing force for the contact line arm grounding contact arm rocker 11, and the contact line arm grounding contact arm automatic recovery spring 14 bears a reverse force when the contact line arm grounding contact arm contact 16 is connected to the arm 7, and the contact line arm grounding contact arm contact 16 can be disconnected from the arm 7 by the spring pre-torsion to ensure that the contact line arm grounding contact arm contact 16 can be quickly separated from the arm 7 and restored to the initial state. The contact line arm grounding contact arm contact 16 is hinged at the top of the contact line insulating rod 15 and retains a free activity margin within the range of ±7.5° to avoid the influence of incomplete contact caused by different installation processes, and effectively ensure the contact area. The contact wire arm grounding contact arm insulating rod can effectively insulate and isolate the contact wire arm grounding contact arm contact from the contact wire arm grounding contact arm rocker mechanism to ensure the safety of the operator. In addition, the contact wire arm grounding contact arm contact 16 is embedded with a magnet, and when the contact wire arm grounding contact arm contact 16 contacts the arm 7, it can better and reliably contact the arm 7 through the magnet.

[0029] Reference Figure 2 and Figure 4As shown, the positive feeder grounding contact arm 2 includes a positive feeder grounding contact arm rocker 21, a positive feeder grounding contact arm base 22, a positive feeder grounding contact arm automatic recovery spring 23, a positive feeder grounding contact arm insulating rod 24 and a positive feeder grounding contact arm contact 25, wherein one end of the positive feeder grounding contact arm rocker 21 is hinged to the top of the telescopic top rod 3, the positive feeder grounding contact arm base 22 is fixedly installed on the positive feeder shoulder frame 8, and the positive feeder grounding contact arm base 22 and the positive feeder grounding contact arm rocker 21 are connected. The positive feeder grounding contact arm is connected through the positive feeder grounding contact arm automatic recovery spring 23, the positive feeder grounding contact arm insulating rod 24 is sleeved on the positive feeder grounding contact arm rocker 21, the positive feeder grounding contact arm contact 25 is hinged at the front end of the positive feeder grounding contact arm insulating rod 24, the positive feeder grounding contact arm contact 25 has a free movement margin within the range of ±7.5°, the positive feeder grounding contact arm contact 25 is suspended above the positive feeder, and the positive feeder is equipped with a positive feeder jacket 5 for a good contact position with the positive feeder grounding contact arm. In the actual working process, the positive feeder grounding contact arm automatic recovery spring 23 is subjected to reverse force when the positive feeder grounding contact arm contact 25 is connected to the positive feeder, and the positive feeder grounding contact arm contact 25 can be disconnected from the positive feeder jacket 5 by the spring pre-torsion to ensure that the positive feeder grounding contact arm contact 25 can be quickly separated from the positive feeder jacket 5 and restored to the initial state, and it can also ensure that when the contact network is operating normally, it will not be affected by external factors to cause malfunction of the device, thereby ensuring safety and reliability. The positive feeder grounding contact arm insulating rod 24 can effectively insulate and isolate the positive feeder grounding contact arm contact 25 from the positive feeder grounding contact arm rocker arm 21 mechanism to ensure the safety of the operator; the positive feeder grounding contact arm contact 25 has a free movement margin within the range of ±7.5° to avoid the influence of incomplete contact caused by different installation processes, and effectively ensure the contact area. The positive feeder grounding contact arm contact 25 is embedded with a magnet. When the positive feeder grounding contact arm contact 25 contacts the positive feeder 10, it can better contact the positive feeder jacket 5 reliably through the magnet.

[0030] Reference Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, the telescopic push rod 3 includes a first push rod joint 31, a second push rod joint 32, a limit contact ring spring 33, a limit contact ring 34, an angle hoop 35, a third push rod joint 36 and a push rod body 37. The first push rod joint 31 is installed at the top of the push rod body 37 and is hinged to the positive feeder grounding contact arm 2. The second push rod joint 32 is installed in the upper half of the push rod body 37 and is located below the first push rod joint 31. The second push rod joint 32 is hinged to the contact line wrist arm grounding contact arm 1. The push rod body 37 is fixed to the pillar 6 through the angle hoop 35. The limit contact ring spring 33 and the limit contact ring 34 are respectively sleeved on the push rod body 37. The third push rod joint 36 is installed at the bottom of the push rod body 37 and is connected to the driving device 4. In the actual working process, the up and down movement of the telescopic top rod 3 drives and controls the movement of the contact line arm grounding contact arm 1 and the positive feeder grounding contact arm 2, thereby controlling the implementation or removal of the system grounding measures. The limit contact ring 34 is used to limit the up and down travel range of the telescopic top rod 3 and can be fed back to the electronic control unit as an in-place signal. The limit contact ring spring 33 is used to ensure that the contact arm is fully in place or restored, and a certain buffer margin is left for the up and down travel.

[0031] Reference Figure 7 As shown, the driving device 4 includes a worm gear 41, a handle 42 and a DC motor 43, wherein the worm gear 41 is connected to the third push rod joint 36 at the bottom of the telescopic push rod 3, the DC motor 43 is installed on the worm gear 41, and the handle 42 is connected to the worm gear 41 through a rotating shaft. The DC motor 43 can automatically control the rotation of the worm gear 41 to control the lifting and lowering of the telescopic push rod 3, and the rotation of the worm gear 41 can be manually adjusted through the handle 42 to manually control the lifting and lowering of the telescopic push rod 3.

[0032] The specific working principle of the present invention is as follows:

[0033] During the grounding operation of the safety measures for the maintenance of the contact network, the handle 42 in the manual operation driving device 4 or the electric control DC motor 43 drives the worm gear 41 to rotate, thereby realizing the control of the upward movement of the telescopic top rod 3, and the contact line wrist arm grounding contact arm 1 and the positive feeder grounding contact arm 2 connected to the telescopic top rod 3 move downward with the upward push of the telescopic top rod 3. At this time, the contact line wrist arm grounding contact arm 1 contacts the contact line wrist arm 7, the positive feeder grounding contact arm 2 contacts the positive feeder jacket 5, and the wrist arm 7 is electrically connected to the contact line, thereby achieving the purpose of grounding the contact line and the positive feeder. At this time, the system is in a safe operating state, and the operation is stopped manually, or the limit contact ring 34 feeds back the contact point signal to the electric control mechanism to stop the DC motor 43 from working, and the grounding measures for the contact line and the positive feeder are realized.

[0034] Safety measures removal operation: The handle 42 in the manual reverse operation driving device 4 or the electric control DC motor 43 is used to drive the worm gear 41 to rotate, thereby controlling the downward movement of the telescopic top rod 3, and the contact line wrist arm grounding contact arm 1 and the positive feeder grounding contact arm 2 are restored to the initial state. The operation is stopped manually, or the limit contact ring 34 feeds back the contact point signal to the electric control mechanism to stop the DC motor 43, thereby realizing the removal of the grounding measures of the contact line and the positive feeder.

[0035] The joints of the actuators are equipped with automatic recovery spring mechanisms to avoid false grounding caused by other external forces such as birds stepping on them during normal operation of the contact network, and to ensure that there is enough force to make the contact arm return reliably when the actuator resumes operation.

[0036] The contact network safety measure grounding device has a simple structure, reasonable design, high degree of automation, and easy operation. It can use electric control or manual control to complete the hanging and removing operations of the grounding wire, and has an intelligent interface. It can realize remote monitoring of the grounding device through the automated cloud platform, effectively solving the drawbacks of manual hanging and removing of the grounding wire, improving work efficiency, and making operations safer.

[0037] This overhead line safety measures operation grounding device is compatible with overhead line safety measures operations with various power supply modes and is highly practical. It has electric control and manual operation mechanisms, which improves reliability and work efficiency. The electric control unit has a reserved intelligent interface for easy access to the automation cloud platform.

[0038] The above description is only a preferred embodiment of the present invention, but the present invention should not be limited to the contents disclosed in the embodiment and the drawings, so any equivalent or modification completed without departing from the spirit disclosed in the present invention shall fall within the scope of protection of the present invention.

Claims

1. A contact network safety measure operation grounding device, characterized in that include: A telescopic top rod is installed on the support along the vertical direction of the contact network support, a driving device is installed at the bottom of the telescopic top rod, a contact line wrist arm grounding contact arm is installed on the top of the support, one end of the contact line wrist arm grounding contact arm is hinged on the telescopic top rod, the other end of the contact line wrist arm grounding contact arm stands between the two wrist arms of the contact line along the vertical direction of the support, and has no contact with the wrist arms, a positive feeder grounding contact arm is installed on the top of the support and is arranged opposite to the contact line wrist arm grounding contact arm, one end of the positive feeder grounding contact arm is hinged on the top of the telescopic top rod, the other end of the positive feeder grounding contact arm is suspended and installed above the positive feeder jacket on the positive feeder, the middle part of the positive feeder grounding contact arm is fixed on the positive feeder shoulder frame through a base, and the positive feeder jacket is installed on the positive feeder at the contact position with the positive feeder grounding contact arm; The contact line arm grounding contact arm comprises a contact line arm grounding contact arm rocker arm, a contact line arm grounding contact arm base, a contact line arm grounding contact arm spring hinge, a contact line arm grounding contact arm automatic recovery spring, a contact line arm grounding contact arm insulating rod, a contact line arm grounding contact arm contact and a rotating shaft, wherein the contact line arm grounding contact arm base is provided with a support ear, the bottom of the contact line arm grounding contact arm insulating rod is fixed to the support ear of the contact line base through a rotating shaft, one end of the contact line arm grounding contact arm rocker arm is hinged on the telescopic top rod, the other end of the contact line arm grounding contact arm rocker arm is hinged to one end of the rotating shaft through the contact line arm grounding contact arm spring hinge, the contact line arm grounding contact arm automatic recovery spring is installed on the end of the rotating shaft opposite to the contact line arm grounding contact arm spring hinge, and the contact of the contact line arm grounding contact arm is installed on the top of the contact line arm grounding contact arm insulating rod; The positive feeder grounding contact arm comprises a positive feeder grounding contact arm rocker arm, a positive feeder grounding contact arm base, a positive feeder grounding contact arm automatic recovery spring, a positive feeder grounding contact arm insulating rod and a positive feeder grounding contact arm contact, wherein one end of the positive feeder grounding contact arm rocker arm is hinged at the top of the telescopic top rod, the positive feeder grounding contact arm base is fixedly installed on the positive feeder shoulder frame, the positive feeder grounding contact arm base is connected to the positive feeder grounding contact arm rocker arm through an automatic recovery spring, the positive feeder grounding contact arm insulating rod is sleeved on the positive feeder grounding contact arm rocker arm, the positive feeder grounding contact arm contact is hinged at the front end of the positive feeder grounding contact arm insulating rod, the positive feeder grounding contact arm contact has a free activity margin within the range of ±7.5°, the positive feeder grounding contact arm contact is suspended above the positive feeder, and a positive feeder jacket is provided on the positive feeder for good contact with the positive feeder grounding contact arm; The telescopic push rod includes a first push rod joint, a second push rod joint, a limit contact ring spring, a limit contact ring, an angle hoop, a third push rod joint and a push rod body. The first push rod joint is installed on the top of the push rod body and is hinged to the positive feeder grounding contact arm, the second push rod joint is installed on the upper half of the push rod body and is located below the first push rod joint, the second push rod joint is hinged to the contact line grounding contact arm, the push rod body is fixed to the pillar through an angle hoop, the limit contact ring spring and the limit contact ring are respectively sleeved on the push rod body, and the third push rod joint is installed at the bottom of the push rod body and connected to the driving device.

2. The contact network safety measure operation grounding device according to claim 1, characterized in that: The contact of the contact wire arm grounding contact arm is hinged on the top of the insulating rod of the contact wire arm grounding contact arm and retains a free movement margin within the range of ±7.5°.

3. The contact network safety measure operation grounding device according to claim 1, characterized in that: The contact wire arm grounding contact arm contact is embedded with a magnet.

4. The contact network safety measure operation grounding device according to claim 1, characterized in that: The driving device comprises a worm gear, a handle and a DC motor, wherein the worm gear is connected to a third push rod joint at the bottom of the telescopic push rod, the DC motor is installed on the worm gear, and the handle is connected to the worm gear through a rotating shaft.

Images