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CN-224230907-U - Switch moving contact depth testing device

CN224230907UCN 224230907 UCN224230907 UCN 224230907UCN-224230907-U

Abstract

The utility model relates to a contact test technical field, concretely relates to switch moving contact degree of depth testing arrangement, this device includes the base, the base upper end is connected with the locating tube, the locating tube both sides are provided with the thread bush, thread bush one side is connected with the connecting plate, connecting plate one side is connected with the fly leaf, fly leaf one side is provided with the trachea, the utility model discloses when the fly leaf promotes the contact to descend, the last position that lies in of staff's accessible fly leaf detects the length of contact more accurately according to the number of turns that scale tooth and threaded rod rotate to detect the length of contact in the regulation scope, can produce certain resistance because of the spring when the fixed plate descends simultaneously, and then can detect the intensity of contact in step when the fly leaf extrusion contact descends, prevent potential deformation problem, guarantee that measuring result truly reflects the contact actual position, realized a switch moving contact degree of depth testing arrangement.

Inventors

  • YU LEI
  • LI QIAN
  • CHE LAN
  • WEI XIAOJUN
  • LIU ZHENKE
  • LIU ZHENXUE
  • YIN LIANG
  • LI XUEMEI

Assignees

  • 四川吉方源电气设备制造有限公司

Dates

Publication Date
20260512
Application Date
20250429

Claims (7)

  1. 1. The device for testing the depth of the moving contact of the switch comprises a base (1) and is characterized in that the upper end of the base (1) is connected with a positioning tube (2), two sides of the positioning tube (2) are provided with threaded sleeves (3), one side of each threaded sleeve (3) is connected with a connecting plate (5), one side of each connecting plate (5) is connected with a movable plate (6), one side of each movable plate (6) is provided with an air tube (7), one end of each air tube (7) is connected with a connecting tube A (9), the outer side of each air tube (7) is connected with a branch tube (10), one side of each threaded sleeve (3) is provided with an air cylinder (11), the lower end of the base (1) is provided with an ejector rod (13), the outer side of each ejector rod (13) is connected with a spring (14), the lower end of each ejector rod (13) is provided with a current plate (16), and one end of each current plate (16) is electrically connected with a pilot lamp (17).
  2. 2. The device for testing the depth of the switch moving contact according to claim 1, wherein the positioning tube (2) is fixedly connected to the center of the upper end of the base (1), two groups of guide grooves are formed in two sides of the positioning tube (2), empty grooves are formed in the lower end of the positioning tube (2) of the base (1), two groups of thread sleeves (3) are formed in two sides of the positioning tube (2), empty grooves are formed in the lower ends of the two groups of thread sleeves (3), the thread sleeves (3) are in damping connection with the hole grooves, and threaded rods (4) are in threaded connection with the insides of the two groups of thread sleeves (3).
  3. 3. The device for testing the depth of the switch moving contact according to claim 1, wherein two groups of threaded sleeves (3) are fixedly connected with connecting plates (5) on one side of a positioning pipe (2), the sizes of the connecting plates (5) are matched with those of guide grooves, one end of each group of connecting plates (5) is movably connected with a movable plate (6), an air pipe (7) is fixedly connected to the upper end of each connecting plate (5) on one side of each movable plate (6), a push rod (8) is movably connected inside each air pipe (7), each push rod (8) is movably connected with each movable plate (6), one end of each air pipe (7) is fixedly connected with a connecting pipe A (9), and the other end of each connecting pipe A (9) is connected with air supply equipment.
  4. 4. The device for testing the depth of the moving contact of the switch according to claim 1, wherein a branch pipe (10) is fixedly connected to the outer side of the positioning pipe (2), the other end of the branch pipe (10) is fixedly connected with an air cylinder (11), the air cylinder (11) is fixedly connected to the upper end of the base (1) and is located on one side of the threaded sleeve (3), and the output end of the air cylinder (11) is connected with the threaded sleeve (3).
  5. 5. The device for testing the depth of the moving contact of the switch according to claim 2, wherein a fixed plate (12) is fixedly connected in the hollow groove, a push rod (13) is connected in the fixed plate (12), a top plate is arranged at the upper end of the push rod (13), one end of a spring (14) is fixedly connected with the fixed plate (12), and the other end of the spring is fixedly connected with the push rod (13).
  6. 6. The device for testing the depth of the moving contact of the switch according to claim 1, wherein the lower end of the ejector rod (13) is fixedly connected with an electric control block (15), the lower end of the base (1) is fixedly connected with a current plate (16), and the electric control block (15) is electrically connected with the current plate (16).
  7. 7. The device for testing the depth of the moving contact of the switch according to claim 1 is characterized in that two groups of reset cylinders (18) are fixedly connected inside the base (1), and the two groups of reset cylinders (18) and the two groups of connecting plates (5) are located on the same vertical plane.

Description

Switch moving contact depth testing device Technical Field The utility model relates to the technical field of contact testing, in particular to a device for testing the depth of a moving contact of a switch. Background With the rapid development of social economy, the industries have extremely high requirements on the stability and reliability of power supply, the scale of a power system is continuously expanded, the power grid structure is increasingly complex, the importance of the switch equipment is increasingly remarkable, the switch is used as a key component for controlling and protecting a power circuit, the performance of the switch is directly related to the safe operation of the whole power system, and the depth of a moving contact is one of key parameters for determining the electrical performance of the switch. The traditional contact is often only tested to the contact depth when detecting, and only detects the inside potential problem of contact more singlely, can't detect to lead to influencing the use of contact when later use, the mode of detection is comparatively singlely simultaneously, can't follow multiple angle and detect the contact, thereby can lead to the inaccuracy of testing result. In view of the above, the present invention provides a device for testing the depth of a moving contact of a switch, which has reasonable structural design and high stability, and can be applied in various aspects. Disclosure of utility model According to the device, when the movable plate pushes the contact to descend, a worker can accurately detect the length of the contact through the final position of the movable plate and according to the number of turns of the rotation and the ascending of the scale teeth and the threaded rod, so that whether the length of the contact is in a specified range is detected, meanwhile, when the fixed plate descends, certain resistance is generated due to the spring, and further, when the movable plate extrudes the contact to descend, the strength of the contact can be synchronously detected, the potential deformation problem is prevented, the actual position of the contact is truly reflected by a measurement result, and the device for testing the depth of the movable contact of the switch is realized. In order to achieve the purpose, the switch moving contact depth testing device comprises a base, wherein the upper end of the base is connected with a positioning tube, threaded sleeves are arranged on two sides of the positioning tube, one side of each threaded sleeve is connected with a connecting plate, one side of each connecting plate is connected with a movable plate, one side of each movable plate is provided with an air tube, one end of each air tube is connected with a connecting tube A, the outer side of each air tube is connected with a branch tube, one side of each threaded sleeve is provided with an air cylinder, the lower end of the base is provided with a push rod, the outer side of each push rod is connected with a spring, the lower end of each push rod is provided with a current plate, and one end of each current plate is electrically connected with a indicating lamp. Preferably, the positioning pipe is fixedly connected to the center of the upper end of the base, two groups of guide grooves are formed in two sides of the positioning pipe, empty grooves are formed in the lower end of the positioning pipe, two groups of screw sleeves are arranged on two sides of the positioning pipe, empty grooves are formed in the lower ends of the two groups of screw sleeves, the screw sleeves are in damping connection with the hole grooves, and threaded rods are in threaded connection with the inner parts of the two groups of screw sleeves. Preferably, the two groups of threaded sleeves are fixedly connected with connecting plates on one side of the positioning pipe, the sizes of the connecting plates are matched with those of the guide grooves, one end of each group of connecting plates is movably connected with a movable plate, an air pipe is fixedly connected to the upper end of the connecting plate on one side of the movable plate, a push rod is movably connected to the inside of the air pipe, the push rod is movably connected with the movable plate, one end of the air pipe is fixedly connected with a connecting pipe A, and the other end of the connecting pipe A is connected with air supply equipment. Preferably, the outside of the positioning pipe is fixedly connected with a branch pipe, the other end of the branch pipe is fixedly connected with a cylinder, the cylinder is fixedly connected to the upper end of the base and is positioned on one side of the threaded sleeve, and the output end of the cylinder is connected with the threaded sleeve. Preferably, a fixed plate is fixedly connected in the empty groove, a push rod is connected in the fixed plate, a top plate is arranged at the upper end of the push rod, one end of the spring is fixedly connected with