Knife switch tester with alarm

Abstract

The utility model discloses a knife switch tester with an alarm function. The knife switch tester comprises a base and a detection mechanism, the left side of the upper surface of the base is fixedly connected with a detection table; the detection mechanism comprises a moving assembly, a torque sensor, a fixing plate and a detection rod, the moving assembly is arranged on the right side of the upper surface of the base, the torque sensor is fixedly connected to the upper end of the moving assembly, the fixing plate is fixedly connected to the left end of a detection shaft of the torque sensor, and the detection rod is fixedly connected to the left side face of the fixing plate; the knife switch tester with the alarm function further comprises an alarm lamp and a controller, the alarm lamp and the controller are both arranged on the upper surface of the base, the input end of the controller is electrically connected with an external power source, and the torque sensor is electrically connected with the controller in a bidirectional mode. The detection of the opening and closing fluency of the knife switch is realized through the change fluctuation of the torque when the knife switch is opened and closed, the accuracy is higher, and meanwhile, an alarm prompt can be given to unqualified products.

Description

Technical Field

[0001] The utility model relates to the technical field of knife-switch detection, in particular to a knife-switch tester with an alarm. Background Technique

[0002] A knife-switch is a manual power distribution electrical appliance, mainly used to isolate the power supply or manually connect and disconnect AC and DC circuits, and can also be used for infrequent connection and disconnection of loads below the rated current, such as small motors, electric furnaces, etc. It is widely used in the fields of electric power, metallurgy, petrochemical, construction, etc., for controlling the on-off of circuits and the switching of loads, as well as the start and stop of large equipment, and the control of equipment such as lighting and air conditioners.

[0003] When producing a knife-switch, it needs to be detected. Workers repeatedly detect the smoothness of the opening and closing process of the knife-switch. Since the detection of smoothness is manually carried out by workers, it is affected by the proficiency of workers and the accuracy is relatively low. At the same time, workers may also mix up unqualified products after detection. For this reason, we propose a knife-switch tester with an alarm. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects, provide a knife-switch tester with an alarm, and realize the detection of the smoothness of the opening and closing of the knife-switch through the change and fluctuation of the torque when the knife-switch opens and closes, with higher accuracy. At the same time, unqualified products can be alarmed, which can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A knife-switch tester with an alarm, including a base and a detection mechanism;

[0006] Base: A detection table is fixedly connected to the left side of the upper surface thereof;

[0007] Detection mechanism: It includes a moving component, a torque sensor, a fixing plate and a detection rod. The moving component is arranged on the right side of the upper surface of the base. The upper end of the moving component is fixedly connected with the torque sensor. The left end of the detection shaft of the torque sensor is fixedly connected with the fixing plate, and the left side surface of the fixing plate is fixedly connected with the detection rod;

[0008] Among them, it further includes an alarm lamp and a controller. The alarm lamp and the controller are both arranged on the upper surface of the base. The input end of the controller is electrically connected to an external power supply. The torque sensor is bidirectionally electrically connected to the controller. The output end of the alarm lamp is electrically connected to the input end of the controller. The smoothness of the opening and closing of the knife-switch is detected through the change and fluctuation of the torque when the knife-switch opens and closes, with higher accuracy. At the same time, unqualified products can be alarmed.

[0009] Further, the moving component includes a sliding table, a slide rail, a second cylinder, and a second fixed seat. The right side of the upper surface of the base is fixedly connected with slide rails distributed front and back. A sliding table is slidably connected between the upper ends of the two slide rails. The torque sensor is fixedly connected to the upper end of the sliding table. A second fixed seat is provided on the right side of the upper surface of the base. The upper end of the second fixed seat is fixedly connected with a second cylinder. The telescopic end of the second cylinder is fixedly connected to the right side surface of the sliding table. The air inlet of the second cylinder is connected to the air outlet of an external air pump, realizing the left and right movement of the detection rod and the return push rod.

[0010] Further, the detection mechanism further includes a motor, a third fixed seat, and an angle sensor. A third fixed seat is provided on the upper end of the sliding table. The right side surface of the third fixed seat is fixedly connected with a motor. The output shaft of the motor is fixedly connected to the right end of the detection shaft of the torque sensor. The right side surface of the fixed plate is fixedly connected with an angle sensor. The angle sensor is bidirectionally electrically connected to the controller. The output end of the motor is electrically connected to the input end of the controller, realizing the precise control of the angle during the opening and closing process of the knife switch.

[0011] Further, the detection mechanism further includes a return push rod. The left side surface of the third fixed seat is fixedly connected with a return push rod. The return push rod is located above the detection rod, realizing the reset of the knife switch.

[0012] Further, it further includes a clamping mechanism. The clamping mechanism includes a first fixed seat, a first cylinder, a connecting seat, a first connecting rod, a second connecting rod, a spring, a clamping plate, and a sliding column. Uniformly distributed sliding columns are fixedly connected between the inner walls on the left and right sides of the lower end of the detection table. Symmetrically distributed clamping plates are slidably connected between the sliding columns. A spring is sleeved on the outer part of the middle sliding column. The spring is fixedly connected between the two clamping plates. A fixed column is provided on the left side of the upper surface of the base. The upper end of the fixed column is rotatably connected with cross-distributed second connecting rods. The clamping plates are both located between the left and right ends of the second connecting rods. A first fixed seat is fixedly connected to the left side of the upper surface of the base. The upper end of the first fixed seat is fixedly connected with a first cylinder. The telescopic end of the first cylinder is fixedly connected with a connecting seat. The front ends of the two second connecting rods are both rotatably connected with a first connecting rod through a first pin shaft. The front ends of the two first connecting rods are both rotatably connected to the middle part of the connecting seat through a second pin shaft. The air inlet of the first cylinder is connected to the air outlet of an external air pump, positioning and clamping the knife switch.

[0013] Further, positioning blocks are symmetrically distributed front and back on the upper surface of the detection table, positioning the front and back positions of the knife switch.

[0014] Further, a display screen is arranged on the upper surface of the base. The output end of the display screen is electrically connected to the input end of the controller, displaying the torque change.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: This knife switch tester with alarm has the following advantages:

[0016] After clamping and fixing the knife-switch, the telescopic end of the second cylinder pushes the sliding table to move to the left between the slide rails. The detection rod and the return push rod both move to the left. The switch of the knife-switch is located between the detection rod and the return push rod. The controller controls the motor to start. The motor is a constant-torque motor, and the output torque remains unchanged. The rotation of the torque sensor drives the fixed plate to rotate around the central axis with the output shaft of the motor as the center. The detection rod pushes the switch of the knife-switch to rotate upward. After reaching the set angle, the motor reverses, and the return push rod pushes the switch of the knife-switch back to its original position. The torque sensor transmits the torque change during the rotation of the switch of the knife-switch to the controller, and the controller linearly displays the torque change through the display screen. When the torque change exceeds the set fluctuation range, it is regarded as a non-conforming product, and the controller controls the alarm light to turn on. By mechanically and automatically detecting the smoothness of the opening and closing of the knife-switch, the detection process is simplified and more accurate. Brief Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is a cross-sectional structural diagram of the moving component of the present invention.

[0019] In the figure: 1 base, 2 clamping mechanism, 21 first fixed seat, 22 first cylinder, 23 connecting seat, 24 first connecting rod, 25 second connecting rod, 26 spring, 27 clamping plate, 28 sliding column, 3 detection mechanism, 31 moving component, 311 sliding table, 312 slide rail, 313 second cylinder, 314 second fixed seat, 32 motor, 33 third fixed seat, 34 torque sensor, 35 angle sensor, 36 fixed plate, 37 return push rod, 38 detection rod, 4 positioning block, 5 detection table, 6 alarm light, 7 controller, 8 display screen. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0021] Please refer to Figure 1-2 , this embodiment provides a technical solution: a knife-switch tester with an alarm, including a base 1 and a detection mechanism 3;

[0022] Base 1: A detection table 5 is fixedly connected to the left side of its upper surface. A display screen 8 is arranged on the upper surface of the base 1, and the output end of the display screen 8 is electrically connected to the input end of the controller 7;

[0023] Detection mechanism 3: It includes a moving component 31, a torque sensor 34, a fixing plate 36, and a detection rod 38. A moving component 31 is arranged on the right side of the upper surface of the base 1. The upper end of the moving component 31 is fixedly connected to a torque sensor 34. The left end of the detection shaft of the torque sensor 34 is fixedly connected to a fixing plate 36. The left side surface of the fixing plate 36 is fixedly connected to a detection rod 38. The moving component 31 includes a slide 311, a slide rail 312, a second cylinder 313, and a second fixing seat 314. The right side of the upper surface of the base 1 is fixedly connected with slide rails 312 distributed front and back. A slide 311 is slidably connected between the upper ends of the two slide rails 312. The torque sensor 34 is fixedly connected to the upper end of the slide 311. A second fixing seat 314 is arranged on the right side of the upper surface of the base 1. The upper end of the second fixing seat 314 is fixedly connected to a second cylinder 313. The telescopic end of the second cylinder 313 is fixedly connected to the right side surface of the slide 311. The air inlet of the second cylinder 313 is connected to the air outlet of an external air pump. The detection mechanism 3 further includes a motor 32, a third fixing seat 33, and an angle sensor 35. A third fixing seat 33 is arranged on the upper end of the slide 311. The right side surface of the third fixing seat 33 is fixedly connected to a motor 32. The output shaft of the motor 32 is fixedly connected to the right end of the detection shaft of the torque sensor 34. The right side surface of the fixing plate 36 is fixedly connected to an angle sensor 35. The angle sensor 35 is bidirectionally electrically connected to the controller 7. The output end of the motor 32 is electrically connected to the input end of the controller 7. The detection mechanism 3 further includes a return push rod 37. The left side surface of the third fixing seat 33 is fixedly connected to a return push rod 37. The return push rod 37 is located above the detection rod 38. Subsequently, the telescopic end of the second cylinder 313 pushes the slide 311 to move leftward between the slide rails 312. Both the detection rod 38 and the return push rod 37 move leftward. The switch of the knife switch is located between the detection rod 38 and the return push rod 37. The controller 7 controls the motor 32 to start. The motor 32 is a constant-torque motor, and the output torque remains unchanged. The rotation of the torque sensor 34 drives the fixing plate 36 to rotate around the central axis with the output shaft of the motor 32 as the center. The central axis of the output shaft of the motor 32 coincides with the rotation center of the knife switch. The angle sensor 35 feeds back the rotation angle of the fixing plate 36 to the controller 7 to achieve precise control of the rotation angle. The detection rod 38 pushes the switch of the knife switch to rotate upward. After reaching the set angle, the motor 32 rotates in reverse, and the return push rod 37 pushes the switch of the knife switch back to its original position. The torque sensor 34 transmits the torque change during the rotation of the switch of the knife switch to the controller 7. The controller 7 linearly displays the torque change through the display screen 8. When the torque change exceeds the set fluctuation range, it is regarded as a non-conforming product, and the controller 7 controls the alarm lamp 6 to light up;

[0024] Among them, it further includes an alarm lamp 6 and a controller 7. The alarm lamp 6 and the controller 7 are both arranged on the upper surface of the base 1. The input end of the controller 7 is electrically connected to an external power supply. The torque sensor 34 is bidirectionally electrically connected to the controller 7. The output end of the alarm lamp 6 is electrically connected to the input end of the controller 7.

[0025] It further includes a clamping mechanism 2. The clamping mechanism 2 includes a first fixed seat 21, a first cylinder 22, a connecting seat 23, a first connecting rod 24, a second connecting rod 25, a spring 26, a clamping plate 27 and a sliding column 28. Uniformly distributed sliding columns 28 are fixedly connected between the left and right inner walls at the lower end of the detection table 5. Symmetrically distributed clamping plates 27 are slidably connected between the sliding columns 28. A spring 26 is sleeved outside the sliding column 28 in the middle, and the spring 26 is fixedly connected between the two clamping plates 27. A fixed column is provided on the left side of the upper surface of the base 1. The upper end of the fixed column is rotatably connected with a second connecting rod 25 distributed in a cross shape. The clamping plates 27 are both located between the left and right ends of the second connecting rod 25. A first fixed seat 21 is fixedly connected to the left side of the upper surface of the base 1. The upper end of the first fixed seat 21 is fixedly connected with a first cylinder 22. The telescopic end of the first cylinder 22 is fixedly connected with a connecting seat 23. The front ends of the two second connecting rods 25 are rotatably connected with a first connecting rod 24 through a first pin shaft. The front ends of the two first connecting rods 24 are rotatably connected to the middle of the connecting seat 23 through a second pin shaft. The air inlet of the first cylinder 22 is communicated with the air outlet of an external air pump. Positioning blocks 4 are symmetrically distributed in the front and back on the upper surface of the detection table 5. The switch to be detected is placed on the upper surface of the detection table 5, and the positioning blocks 4 position the front and back positions of the switch. Subsequently, the telescopic end of the first cylinder 22 retracts, the connecting seat 23 moves forward, driving the first connecting rod 24 to move forward. The front and back angles between the two second connecting rods 25 become smaller, pushing the clamping plates 27 to slide relative to each other between the sliding columns 28, and the relative distance between the two clamping plates 27 decreases, realizing the positioning and clamping of the switch. After the detection is completed, the telescopic end of the first cylinder 22 is pushed out. Similarly, the front and back angles between the two second connecting rods 25 become larger, the compressed spring 26 returns, pushing out the two clamping plates 27, and taking out the switch.

[0026] The working principle of a knife switch tester with alarm provided by the present utility model is as follows: Place the knife switch to be detected on the upper surface of the detection table 5. The positioning block 4 positions the front and rear positions of the knife switch. Subsequently, the telescopic end of the first cylinder 22 retracts, the connecting seat 23 moves forward, driving the first connecting rod 24 to move forward. The front and rear included angles of the two second connecting rods 25 become smaller, pushing the clamping plates 27 to slide relative to each other between the sliding columns 28. The relative distance between the two clamping plates 27 decreases, realizing the positioning and clamping of the knife switch. Subsequently, the telescopic end of the second cylinder 313 pushes the sliding table 311 to move to the left between the slide rails 312. The detection rod 38 and the return push rod 37 both move to the left. The switch of the knife switch is located between the detection rod 38 and the return push rod 37. The controller 7 controls the motor 32 to start. The motor 32 is a constant torque motor, and the output torque remains unchanged. The rotation of the torque sensor 34 drives the fixed plate 36 to rotate around the central axis with the output shaft of the motor 32 as the center. The central axis of the output shaft of the motor 32 coincides with the rotation center of the knife switch. The angle sensor 35 feeds back the rotation angle of the fixed plate 36 to the controller 7, realizing precise control of the rotation angle. The detection rod 38 pushes the switch of the knife switch to rotate upward. After reaching the set angle, the motor 32 reverses, and the return push rod 37 pushes the switch of the knife switch back to its original position. The torque sensor 34 transmits the torque change during the rotation of the switch of the knife switch to the controller 7. The controller 7 linearly displays the torque change through the display screen 8. When the torque change exceeds the set fluctuation range, it is regarded as a non-conforming product. The controller 7 controls the alarm lamp 6 to light up. The telescopic end of the first cylinder 22 extends. Similarly, the front and rear included angles of the two second connecting rods 25 become larger, the compressed spring 26 returns, pushing out the two clamping plates 27, and taking out the knife switch.

[0027] It should be noted that in the above embodiments, the controller 7 disclosed can be an FX3SA-30MR-CM PLC controller, the torque sensor 34 can be a FYTH torque sensor, the motor 32 can be a 5BLD250-24GU-25S constant torque reduction motor, and the angle sensor 35 can be a WT901BC angle sensor. The controller 7 controls the torque sensor 34, the motor 32, the angle sensor 35, the alarm lamp 6, and the display screen 8 to work using common methods in the prior art.

[0028] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A knife switch tester with an alarm, characterized in that: It includes a base (1) and a detection mechanism (3); Base (1): A detection table (5) is fixedly connected to the left side of its upper surface; Detection mechanism (3): It includes a moving component (31), a torque sensor (34), a fixing plate (36), and a detection rod (38). The moving component (31) is arranged on the right side of the upper surface of the base (1). The upper end of the moving component (31) is fixedly connected to the torque sensor (34). The left end of the detection shaft of the torque sensor (34) is fixedly connected to the fixing plate (36). The left side surface of the fixing plate (36) is fixedly connected to the detection rod (38); Among them, it further includes an alarm lamp (6) and a controller (7). The alarm lamp (6) and the controller (7) are both arranged on the upper surface of the base (1). The input end of the controller (7) is electrically connected to an external power supply. The torque sensor (34) is bidirectionally electrically connected to the controller (7). The output end of the alarm lamp (6) is electrically connected to the input end of the controller (7).

2. The knife switch tester with an alarm according to claim 1, characterized in that: The moving component (31) includes a sliding table (311), a slide rail (312), a second cylinder (313), and a second fixing seat (314). The slide rail (312) distributed front and back is fixedly connected to the right side of the upper surface of the base (1). The sliding table (311) is slidably connected between the upper ends of the two slide rails (312). The torque sensor (34) is fixedly connected to the upper end of the sliding table (311). The second fixing seat (314) is arranged on the right side of the upper surface of the base (1). The upper end of the second fixing seat (314) is fixedly connected to the second cylinder (313). The telescopic end of the second cylinder (313) is fixedly connected to the right side surface of the sliding table (311). The air inlet of the second cylinder (313) is connected to the air outlet of an external air pump.

3. The knife switch tester with alarm according to claim 2, characterized in that: The detection mechanism (3) further includes a motor (32), a third fixing seat (33), and an angle sensor (35). The third fixing seat (33) is arranged on the upper end of the sliding table (311). The right side surface of the third fixing seat (33) is fixedly connected to the motor (32). The output shaft of the motor (32) is fixedly connected to the right end of the detection shaft of the torque sensor (34). The right side surface of the fixing plate (36) is fixedly connected to the angle sensor (35). The angle sensor (35) is bidirectionally electrically connected to the controller (7). The output end of the motor (32) is electrically connected to the input end of the controller (7).

4. The knife switch tester with an alarm according to claim 3, characterized in that: The detection mechanism (3) further includes a return push rod (37). The left side surface of the third fixing seat (33) is fixedly connected to the return push rod (37). The return push rod (37) is located above the detection rod (38).

5. The knife switch tester with alarm according to claim 1, characterized in that: Further comprising a clamping mechanism (2), the clamping mechanism (2) includes a first fixed seat (21), a first cylinder (22), a connecting seat (23), a first connecting rod (24), a second connecting rod (25), a spring (26), a clamping plate (27) and a sliding column (28). Uniformly distributed sliding columns (28) are fixedly connected between the left and right inner walls at the lower end of the detection table (5). The sliding columns (28) are slidably connected with symmetrically distributed clamping plates (27) on the left and right. A spring (26) is sleeved outside the sliding column (28) in the middle, and the spring (26) is fixedly connected between the two clamping plates (27). A fixed column is provided on the left side of the upper surface of the base (1), and the upper end of the fixed column is rotatably connected with cross-distributed second connecting rods (25). The clamping plates (27) are both located between the left and right ends of the second connecting rods (25). A first fixed seat (21) is fixedly connected to the left side of the upper surface of the base (1), and a first cylinder (22) is fixedly connected to the upper end of the first fixed seat (21). The telescopic end of the first cylinder (22) is fixedly connected with a connecting seat (23). The front ends of the two second connecting rods (25) are respectively rotatably connected with a first connecting rod (24) through a first pin shaft. The front ends of the two first connecting rods (24) are respectively rotatably connected to the middle of the connecting seat (23) through a second pin shaft. The air inlet of the first cylinder (22) is communicated with the air outlet of an external air pump.

6. The knife switch tester with an alarm according to claim 1, characterized in that: Positioning blocks (4) symmetrically distributed in the front and back are provided on the upper surface of the detection table (5).

7. The knife switch tester with alarm according to claim 1, characterized in that: A display screen (8) is arranged on the upper surface of the base (1), and the output end of the display screen (8) is electrically connected to the input end of the controller (7).

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