Multifunctional test tool for electric power safety tool

Abstract

The invention discloses an electric power safety tool multifunctional test tool which comprises a mounting base, a second groove is formed in the top of the mounting base, a bidirectional threaded rod is rotatably connected between the inner walls of the two ends of the second groove, and two moving blocks in threaded connection with the bidirectional threaded rod are arranged on the bidirectional threaded rod. And the two moving blocks are slidably connected with the inner walls of the two sides of the second groove, a servo motor is fixedly installed on the outer wall of one side of the installation base, one end of the bidirectional threaded rod penetrates through the inner wall of one end of the second groove and is fixedly connected with an output shaft of the servo motor, and shells are fixedly installed at the tops of the two moving blocks. According to the invention, the bidirectional threaded rod is driven to drive the two shells to get close to each other, and the pressing, straightening, cleaning and subsequent detection of the frequency converter connecting line can be automatically and sequentially completed without manual intervention of step-by-step operation, so that the stability and effect of the detection of the frequency converter connecting line are effectively improved, and the detection efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of power testing technology, and in particular to a multifunctional testing fixture for power safety tools. Background Technology

[0002] In the field of power system operation and maintenance, frequency converters, as core power equipment for achieving power frequency regulation and efficient power transmission, directly determine the safety and stability of power system operation through the continuity reliability and contact stability of their supporting connecting lines. Throughout the entire lifecycle of frequency converter operation and maintenance, including installation, commissioning, regular maintenance, and troubleshooting, it is necessary to rigorously test the continuity status of the connecting lines and verify the compatibility between the frequency converter's regulation functions and the connecting lines. This is to prevent equipment downtime, power transmission interruptions, and even electrical fires caused by problems such as open circuits or poor contact in the connecting lines, thus ensuring the continuous and stable operation of the power system.

[0003] Currently, inverter connection line testing relies heavily on a combination of manual operation and simple testing tools. On the one hand, the testing process requires manual step-by-step completion, and the numerous manual interventions lead to low testing efficiency. On the other hand, dust, oil, and other impurities adhering to the surface of the connection lines can easily interfere with the transmission of testing signals. Existing testing equipment has limited functionality, only capable of basic continuity testing, and cannot simultaneously complete pre-processing operations. It requires the use of multiple devices in conjunction, which not only increases equipment investment costs and operational complexity but also fails to meet the needs of efficient large-scale power operation and maintenance. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multifunctional testing fixture for power safety tools.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A multi-functional testing fixture for electrical safety includes a mounting base. A second groove is formed at the top of the mounting base. A bidirectional threaded rod is rotatably connected between the inner walls of both ends of the second groove. Two movable blocks are threadedly connected to the bidirectional threaded rod, and both movable blocks are slidably connected to the inner walls of both sides of the second groove. A servo motor is fixedly mounted on one outer wall of the mounting base. One end of the bidirectional threaded rod passes through one inner wall of the second groove and is fixedly connected to the output shaft of the servo motor. A housing is fixedly mounted on the top of each of the two movable blocks. A metal coil is disposed inside each of the two housings. Metal plates are disposed at the upper and lower ends of each of the two metal coils. A warning light is disposed on the top of the mounting base, and the metal coil is electrically connected to the warning light. A pressure accumulator is disposed on the outer side of each of the two housings. A clamping and straightening assembly is disposed on both sides of the second groove. Two sets of cleaning components are disposed above the mounting base.

[0006] Preferably, the pressure accumulator assembly includes a first housing fixedly mounted on the top of the mounting base. An auxiliary rod is slidably connected to the outer wall of the first housing at the end away from the second groove. A first rectangular piston is fixedly mounted at the end of the auxiliary rod inside the first housing and slidably connected to the inner wall of the first housing. A movable plate is fixedly mounted at the end of the auxiliary rod outside the first housing. A second spring is fixedly connected between the first rectangular piston and the inner wall of the first housing at the end away from the second groove. A push rod is fixedly mounted on the side of the outer shell near the movable plate. A connecting pipe communicating with the interior of the first housing is provided on the first housing. The end of the connecting pipe communicating with the first housing is located on the side of the first rectangular piston away from the auxiliary rod.

[0007] Preferably, the clamping and straightening assembly includes an arc-end push block fixedly installed on the side walls of the two outer shells. The top of the mounting base has a first groove located between the two outer shells. A guide rod is fixedly connected between the inner walls of the two ends of the first groove. A placement block is slidably fitted on the guide rod. A first spring is fixedly connected between the placement block and the inner wall of the first groove away from the second groove. Side blocks are fixedly installed on both outer walls of the outer shells.

[0008] Preferably, the top of the two side blocks is fixedly mounted with the same portal frame, the top of the portal frame is fixedly mounted with a third box body, the top of the portal frame is provided with a connecting rod that is slidably connected to it, the end of the connecting rod located inside the third box body is fixedly mounted with a second rectangular piston that is slidably connected to the inner wall of the third box body, and the end of the connecting rod located below the third box body is fixedly mounted with a pressure block located directly above the placement block.

[0009] Preferably, the transverse cross-sections of the two side blocks are both right-angled trapezoidal shapes, one end of the connecting pipe is connected to the third box, and the end of the connecting pipe connected to the third box is located on the side of the second rectangular piston away from the connecting rod.

[0010] Preferably, the cleaning assembly includes a fixing block fixedly mounted on the top of the mounting base. A second housing is fixedly mounted on the side wall of the fixing block near the first groove. A movable rod is slidably connected to the end of the second housing near the first groove. A third rectangular piston is fixedly mounted on the end of the movable rod inside the second housing and slidably connected to the inner wall of the second housing. A third spring is fixedly connected between the third rectangular piston and the inner wall of the second housing near the first groove. A rectangular rod is slidably connected to the movable rod and located outside the second housing. An auxiliary block is fixedly mounted on the end of the rectangular rod near the second groove, located above the side block. A fourth spring is fixedly connected between the auxiliary block and the rectangular rod. An anti-detachment block is fixedly connected to the other end of the rectangular rod.

[0011] Preferably, a horizontal plate located above the auxiliary block is fixedly installed on the outer wall of the fixed block near the first groove. A round rod is rotatably connected to the bottom of the horizontal plate. The round rod is located on the side of the auxiliary block near the first groove. The cross-section of the auxiliary block is a right-angled triangle. A suction pipe and a collection pipe communicating with the interior of the second box are provided on the second box. The ends of the suction pipe and the collection pipe that are connected to the second box are located on the side of the third rectangular piston away from the movable rod. A one-way valve is provided inside the suction pipe and the collection pipe.

[0012] Preferably, one of the portal frames and one of the placement blocks are rotatably connected to the side wall near the second groove, and the other portal frame and the other placement block are fixedly installed with the side wall near the second groove. The two installation rods are located in the two installation cylinders respectively. The outer walls of the two installation rods are provided with spiral grooves. The inner walls of the two installation cylinders are fixedly installed with semi-circular sliders. The two sliders are located in the two grooves respectively and are slidably connected to the inner walls of the two grooves respectively. The outer walls of the two installation cylinders are provided with dust suction ports, and the ends of the two dust suction pipes away from the second box are respectively connected to the two dust suction ports.

[0013] The beneficial effects of this invention are: The servo motor drives the bidirectional threaded rod to move the housing closer. The movement of the housing moves the push rod away from the movable plate. With the help of the reset force of the second spring, the piston is pushed to squeeze the hydraulic oil, which in turn moves the pressure block down to press the inverter connection wire. This ensures that the connection wire is fixed in position during the test, avoiding poor contact of the test circuit due to slight shaking or displacement during the test. It effectively reduces the test deviation caused by displacement and ensures subsequent straightening, cleaning and testing.

[0014] By continuously driving the housing closer with a servo motor, the arc-end pusher on the housing contacts and engages with the inclined surface of the side block, pushing the placement block to move to both sides, thereby straightening the inverter connection cable. This ensures that the detection part of the connection cable remains taut at all times, preventing unstable contact in the detection circuit due to loose connection cable, ensuring continuous signal transmission during the detection process, and reducing detection errors caused by poor contact.

[0015] During the straightening process, as the placement block moves to both sides, it simultaneously drives the mounting rod to insert into the mounting cylinder. The spiral groove and the slider work together to rotate the suction port. At the same time, the arc-end push block on the outer shell and the auxiliary block push the third rectangular piston to move, creating a suction effect that adsorbs dust and impurities from the surface of the connecting wire. Subsequently, the auxiliary block resets, causing the third rectangular piston to move in the opposite direction, discharging the impurities through the collection tube. This ultimately achieves multi-directional cleaning of the connecting wire detection area, ensuring stable signal transmission during electromagnetic induction detection, improving detection results, and reducing misjudgments caused by impurity interference.

[0016] This invention drives a bidirectional threaded rod to bring two housings closer together, automatically completing the clamping, straightening, cleaning, and subsequent testing of the inverter connection cable without manual intervention or step-by-step operation. This effectively improves the stability and effectiveness of inverter connection cable testing and significantly increases testing efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the multifunctional testing fixture for power safety tools proposed in this invention; Figure 2 This is a three-dimensional structural diagram of the present invention after being cut along the center line of the first box body; Figure 3 This is a three-dimensional structural diagram of the present invention after being cut along the third box body; Figure 4 Appendix to this invention Figure 3 Enlarged structural diagram at point A; Figure 5 This is a three-dimensional structural diagram of the mounting rod and slide groove of the present invention; Figure 6 This is a three-dimensional structural diagram of the present invention after being cut along the second box body.

[0018] In the diagram: 1 Mounting base, 2 Housing, 3 Arc-end push block, 4 First box body, 5 Warning light, 6 Connecting pipe, 7 Movable plate, 8 Push rod, 9 Fixing block, 10 Second box body, 11 Horizontal plate, 12 Round rod, 13 Gate-shaped frame, 14 Third box body, 15 Placement block, 16 Side block, 17 First groove, 18 Guide rod, 19 First spring, 20 Movable rod, 21 Anti-detachment block, 22 Mounting cylinder, 23 Dust suction pipe, 24 Second groove, 25 Bidirectional threaded rod, 26 Moving block, 27 First rectangular piston, 28 Second spring, 29 Servo motor, 30 Dust suction port, 31 Mounting rod, 32 Second rectangular piston, 33 Connecting rod, 34 Pressure block, 35 Metal coil, 36 Metal plate, 37 Slide groove, 38 Slider, 39 Third rectangular piston, 40 Third spring, 41 Auxiliary block, 42 ​​Fourth spring, 43 Auxiliary rod, 44 Rectangular rod, 45 Collection pipe. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Reference Figures 1-6A multi-functional testing fixture for electrical safety tools includes a mounting base 1. A second groove 24 is formed on the top of the mounting base 1. A bidirectional threaded rod 25 is rotatably connected between the inner walls of both ends of the second groove 24. Two movable blocks 26 are threadedly connected to the bidirectional threaded rod 25, and both movable blocks 26 are slidably connected to the inner walls of both sides of the second groove 24. A servo motor 29 is fixedly mounted on one outer wall of the mounting base 1. One end of the bidirectional threaded rod 25 passes through one end of the inner wall of the second groove 24 and is fixedly connected to the output shaft of the servo motor 29. A housing 2 is fixedly mounted on the top of each of the two movable blocks 26. A metal coil 35 is installed inside each of the two housings 2. The metal coil 35 is the core component for electromagnetic induction detection. When it forms a closed circuit with a metal plate 36 and the connecting wire is conductive, it can generate an induced current to trigger an alarm light 5. Metal plates 36 are installed at both the upper and lower ends of the two metal coils 35. An alarm light 5 is installed on the top of the mounting base 1, serving as a visual indicator of the test results. The indicator component reflects the continuity of the connection line through its on / off state and the normality of the inverter's adjustment function through changes in brightness. The metal coil 35 is electrically connected to the warning light 5. Both outer shells 2 are equipped with a accumulator assembly. The accumulator assembly includes a first box 4 fixedly installed on the top of the mounting base 1. An auxiliary rod 43 is slidably connected to the outer wall of the first box 4 away from the second groove 24. A first rectangular piston 27 is fixedly installed and slidably connected to the inner wall of the first box 4 at the inner end of the auxiliary rod 43 located inside the first box 4. A movable plate 7 is fixedly installed at the outer end of the auxiliary rod 43 located outside the first box 4. A second spring 28 is fixedly connected between the first rectangular piston 27 and the inner wall of the first box 4 away from the second groove 24. A push rod 8 is fixedly installed on the side of the outer shell 2 near the movable plate 7. A connecting pipe 6 is provided on the first box 4 and communicates with its interior. The end of the connecting pipe 6 that communicates with the first box 4 is located on the side of the first rectangular piston 27 away from the auxiliary rod 43.

[0021] Both sides of the second groove 24 are provided with clamping and straightening components. The clamping and straightening components include arc-end push blocks 3 fixedly installed on the side walls of the two outer shells 2. The top of the mounting base 1 is provided with a first groove 17 located between the two outer shells 2. A guide rod 18 is fixedly connected between the inner walls of the two ends of the first groove 17. A placement block 15 is slidably fitted on the guide rod 18. The placement block 15 is used to support the inverter connection wire to be tested. Anti-slip stripes can be provided on its top to increase the friction with the connection wire and prevent the connection wire from shifting during the clamping and straightening process. A first spring 19 is fixedly connected between the placement block 15 and the inner wall of the first groove 17 away from the second groove 24. Side blocks 16 are fixedly installed on the outer walls of both sides of the outer shell 2. The top of the two side blocks 16 is fixedly installed with the same portal frame 13. The top of the portal frame 13 is fixedly installed with a third box 1. 4. A connecting rod 33 is slidably connected to the top of the gantry frame 13. One end of the connecting rod 33 inside the third box 14 is fixedly installed with a second rectangular piston 32 that is slidably connected to the inner wall of the third box 14. The end of the connecting rod 33 below the third box 14 is fixedly installed with a pressure block 34 located directly above the placement block 15. The pressure block 34 is made of flexible or non-slip material to avoid damaging the connecting line. Its position directly above the placement block 15 ensures that the clamping force is evenly applied to the connecting line. The transverse cross-section of the two side blocks 16 is a right trapezoid shape. The inclined structure of the right trapezoid can cooperate with the arc end face of the arc end push block 3 to ensure effective force transmission. One end of the connecting pipe 6 is connected to the third box 14. The end of the connecting pipe 6 connected to the third box 14 is located on the side of the second rectangular piston 32 away from the connecting rod 33.

[0022] Two cleaning components are provided above the mounting base 1. Each cleaning component includes a fixing block 9 fixedly mounted on the top of the mounting base 1. A second housing 10 is fixedly mounted on the side wall of the fixing block 9 near the first groove 17. A movable rod 20, slidably connected to the end of the second housing 10 near the first groove 17, is passed through it. A third rectangular piston 39, slidably connected to the inner wall of the second housing 10, is fixedly mounted on the end of the movable rod 20 inside the second housing 10. A third spring 40 is fixedly connected between the third rectangular piston 39 and the inner wall of the second housing 10 near the first groove 17. A rectangular rod 44, slidably connected to the movable rod 20 and located outside the second housing 10, is passed through it. A spring 40, located on the end of the rectangular rod 44 near the second groove 24, is fixedly mounted on the end of the rectangular rod 44 near the second groove 24. An auxiliary block 41 above the side block 16 has a right-angled triangular structure that can cooperate with the arc-end push block 3 to generate displacement. Simultaneously, it interacts with the round rod 12 to achieve deflection and disengagement, thereby driving the movable rod 20 to slide the third rectangular piston 39. A fourth spring 42 is fixedly connected between the auxiliary block 41 and the rectangular rod 44. An anti-detachment block 21 is fixedly connected to the other end of the rectangular rod 44, limiting the sliding range of the rectangular rod 44 and preventing it from falling off the movable rod 20. A horizontal plate 11 located above the auxiliary block 41 is fixedly installed on the outer wall of the fixed block 9 near the first groove 17. A round rod 12 is rotatably connected to the bottom of the horizontal plate 11, allowing the round rod 12 to rotate and convert the sliding friction between the auxiliary block 41 and the round rod 12 into rolling friction. To reduce friction, the auxiliary block 41 is smoothly deflected and disengaged from the arc-end push block 3. The round rod 12 is located on the side of the auxiliary block 41 near the first groove 17. The cross-section of the auxiliary block 41 is a right-angled triangle. The second box 10 is provided with a suction pipe 23 and a collection pipe 45 connected to its interior. The suction pipe 23 is used to guide the dust adsorbed by the suction port 30 into the second box 10, and the collection pipe 45 is used to discharge and collect the dust inside the second box, realizing the directional treatment of impurities. The ends of the suction pipe 23 and the collection pipe 45 connected to the second box 10 are both located on the side of the third rectangular piston 39 away from the movable rod 20. One-way valves are provided inside the suction pipe 23 and the collection pipe 45. One of the portal frames 13 and one of the placement blocks 15 are both rotatable on the side wall near the second groove 24. An installation rod 31 is fixedly installed on the side wall of another portal frame 13 and another placement block 15 near the second groove 24, connected to the installation cylinder 22. The two installation rods 31 are located inside the two installation cylinders 22 respectively. The outer wall of the two installation rods 31 is provided with a spiral groove 37. The inner wall of the two installation cylinders 22 is fixedly installed with a semi-circular slider 38. The two sliders 38 are located in the two grooves 37 respectively and are slidably connected to the inner wall of the two grooves 37 respectively. The sliding connection structure ensures that the sliders 38 can move smoothly along the grooves 37, avoid jamming, and ensure the stability of the rotational movement. The outer wall of the two installation cylinders 22 is provided with a dust suction port 30. The end of the two dust suction pipes 23 away from the second box 10 is connected to the two dust suction ports 30 respectively.

[0023] When using this invention, the two outer shells 2 are initially in an initial position far apart from each other. The two push rods 8 fixed on the side wall of the outer shell 2 respectively abut against the corresponding movable plate 7, so that the first rectangular piston 27 in the first box 4 is pushed to the position of compressing the second spring 28. Then the operator places the inverter connection wire to be tested smoothly on the top bearing area of ​​the two placement blocks 15, ensuring that the connection wire is in the test area between the two outer shells 2.

[0024] Subsequently, the servo motor 29, which is fixedly installed on the outer wall of one side of the mounting base 1, is started. The output shaft of the servo motor 29 drives the bidirectional threaded rod 25, which is coaxially fixed with it, to rotate between the inner walls of the two ends of the second groove 24. Since the two moving blocks 26 are respectively threaded to the two ends of the bidirectional threaded rod 25, and the two sides of the moving blocks 26 slide against the inner wall of the second groove 24, the rotation of the bidirectional threaded rod 25 will drive the two moving blocks 26 to move towards each other synchronously along the length direction of the second groove 24, thereby driving the two outer shells 2 fixed on the top of the moving blocks 26 to move towards each other synchronously.

[0025] During the process of the outer shell 2 moving towards each other, the push rod 8 fixed to the side wall of the outer shell 2 moves synchronously with the outer shell 2. One end of the push rod 8 gradually moves away from the movable plate 7 and eventually no longer contacts it. At this time, the second spring 28, which was originally in a compressed state, releases its elastic potential energy and generates a restoring force, pushing the first rectangular piston 27 to slide along the inner wall of the first box 4 towards the second groove 24. During this process, the hydraulic oil in the first box 4 is squeezed by the first rectangular piston 27 and flows into the third box 14 through the connecting pipe 6. After the hydraulic oil enters the third box 14, it will push the second rectangular piston 32 to move downward along the inner wall of the third box 14, thereby driving the connecting rod 33 that passes through the top of the portal frame 13 to move downward synchronously. Finally, the pressure block 34 fixed at the bottom of the connecting rod 33 moves downward until the bottom surface of the pressure block 34 is tightly attached to the surface of the inverter connecting line placed on the placement block 15, thus completing the pressing of the connecting line.

[0026] As the servo motor 29 continues to drive, the two housings 2 continue to approach each other. At this time, the arc-end push block 3 fixed to the side wall of the housing 2 gradually approaches the inclined area of ​​the side block 16. When the arc-shaped end face of the arc-end push block 3 contacts the inclined surface of the side block 16 and slides relative to it, a lateral thrust is generated along the length of the guide rod 18. This thrust pushes the placement block 15 to overcome the elastic force of the first spring 19 and slide along the guide rod 18 away from the second groove 24. As the two placement blocks 15 move to both sides synchronously, the originally loosely placed inverter connection line will be gradually straightened to ensure that its detection part is in a taut state and avoid detection errors caused by looseness.

[0027] While the arc-end push block 3 engages with the side block 16, the straight side of the arc-end push block 3 abuts against the straight side of the auxiliary block 41, thereby pushing the auxiliary block 41 to move closer to the fixed block 9. The movement of the auxiliary block 41 will cause the rectangular rod 44 and the movable rod 20 fixed to it to move synchronously, causing the third rectangular piston 39 fixed at one end of the movable rod 20 to slide along the inner wall of the second box 10 and compress the third spring 40, thereby producing a suction effect, allowing dust and impurities on the surface of the connecting wire to enter through the dust inlet 30 and then through the dust suction pipe 23. When the auxiliary block 41 moves to contact the circular rod 12 rotatably connected to the bottom of the horizontal plate 11, it is sucked into the second box 10. Due to the blocking effect of the circular rod 12, the arc end push block 3 and the auxiliary block 41 are misaligned. The auxiliary block 41 will disengage from the arc end push block 3 under the reset force of the fourth spring 42. Subsequently, the reset force of the third spring 40 will pull the third rectangular piston 39 to move in the opposite direction, thereby generating a squeezing effect, so that the dust and impurities sucked into the second box 10 are squeezed out through the collection tube 45 for collection and processing.

[0028] Meanwhile, as the placement block 15 moves to both sides, it will cause the mounting rod 31 fixed on its side wall to move synchronously, so that the mounting rod 31 is inserted into the mounting cylinder 22 on the corresponding side wall of the outer casing 2. Since the outer wall of the mounting rod 31 has a spiral groove 37, and the inner wall of the mounting cylinder 22 has a semi-circular slider 38, the slider 38 is embedded in the groove 37 and slides with the inner wall of the groove 37. The linear movement of the mounting rod 31 will be converted into the rotational movement of the mounting cylinder 22, thereby causing the dust suction port 30 on the outer wall of the mounting cylinder 22 to rotate synchronously (the rotation angle does not exceed 90 degrees), so as to achieve multi-directional cleaning of the connection wire detection part.

[0029] Finally, the two outer casings 2 move to the preset limit position. At this time, the two sets of metal plates 36 contact each other from the top and bottom, so that the metal coils 35 form a circuit. When current flows through the inverter connection line, the two sets of metal coils 35 generate electromagnetic induction, and current is generated in the metal coils 35. The warning light 5 lights up. When the operator adjusts the inverter, the current in the inverter connection line will change, the current in the metal coils 35 will change, and the brightness of the warning light 5 will change. Thus, the brightness of the warning light 5 can be used to determine whether the inverter's adjustment function is normal.

[0030] After the test is completed, the servo motor 29 is controlled to rotate in reverse, driving the bidirectional threaded rod 25 to rotate in reverse, which in turn drives the two moving blocks 26 to move the outer shell 2 away from each other synchronously. During this process, the outer shell 2 first drives the arc-end push block 3 of the side wall to move away synchronously. The arc-shaped surface of the arc-end push block 3 first disengages from the inclined surface of the side block 16. Under the reset force of the first spring 19, the two placement blocks 15 that were originally pushed away move closer to each other along the guide rod 18 towards the second groove 24 and reset. At the same time, as the arc-end push block 3 moves away with the outer shell 2, its end face will abut against the inclined side of the auxiliary block 41. As the outer shell 2 continues to move away, the arc-end push block 3 pushes the auxiliary block 41 to move towards the moving rod 20. The fourth spring 42 is compressed. Finally, the auxiliary block 41 gradually transitions from the inclined side to the straight side and finally disengages from the arc-end push block 3. The auxiliary block 41 returns to its initial position under the reset action of the fourth spring 42. Meanwhile, as the placement block 15 approaches and resets, the mounting rod 31 is gradually pulled out from the mounting cylinder 22. Through the cooperation of the spiral groove 37 and the slider 38, the mounting cylinder 22 is driven to rotate in the opposite direction, and the dust suction port 30 returns to its initial position. After the placement block 15 is reset, the outer shell 2 continues to move away, and the push rod 8 on its side wall gradually approaches and presses against the movable plate 7 again, pushing the movable plate 7 to move away from the second groove 24. Through the auxiliary rod 43, the first rectangular piston 27 slides in the first box 4, recompressing the second spring 28 to the initial compression state. During this process, the hydraulic oil in the third box 14 flows back to the first box 4 through the connecting pipe 6 under the action of the reset force of the second rectangular piston 32, driving the second rectangular piston 32, the connecting rod 33 and the pressure block 34 to reset upward, releasing the clamping and positioning of the inverter connection wire. At this time, the connection wire can be taken out for the next inverter connection wire inspection operation.

[0031] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-functional testing fixture for power safety tools, comprising a mounting base (1), characterized in that, The top of the mounting base (1) is provided with a second groove (24). A bidirectional threaded rod (25) is rotatably connected between the inner walls of the two ends of the second groove (24). Two movable blocks (26) are provided on the bidirectional threaded rod (25) and are threadedly connected to it. The two movable blocks (26) are slidably connected to the inner walls of the two sides of the second groove (24). A servo motor (29) is fixedly installed on one side of the outer wall of the mounting base (1). One end of the bidirectional threaded rod (25) passes through the inner wall of one end of the second groove (24) and is fixed to the output shaft of the servo motor (29). The two movable blocks (26) are fixedly connected, and the top of each of the two movable blocks (26) is fixedly installed with a housing (2). A metal coil (35) is provided inside each of the two housings (2). A metal plate (36) is provided at the top and bottom of each of the two metal coils (35). A warning light (5) is provided at the top of the mounting base (1). The metal coil (35) is electrically connected to the warning light (5). A pressure accumulator is provided on the outside of each of the two housings (2). A clamping and straightening assembly is provided on both sides of the second groove (24). Two sets of cleaning assemblies are provided above the mounting base (1).

2. The multi-functional testing fixture for power safety tools according to claim 1, characterized in that, The pressure accumulator assembly includes a first housing (4) fixedly mounted on the top of the mounting base (1). An auxiliary rod (43) is slidably connected to the outer wall of the first housing (4) away from the second groove (24). A first rectangular piston (27) is fixedly mounted on the inner wall of the first housing (4) at the inner end of the auxiliary rod (43) located inside the first housing (4). A movable plate (7) is fixedly mounted on the outer end of the auxiliary rod (43) located outside the first housing (4). A second spring (28) is fixedly connected between the first rectangular piston (27) and the inner wall of the first housing (4) away from the second groove (24). A push rod (8) is fixedly mounted on the side of the outer shell (2) near the movable plate (7). A connecting pipe (6) is provided on the first housing (4) and communicates with its interior. The end of the connecting pipe (6) that communicates with the first housing (4) is located on the side of the first rectangular piston (27) away from the auxiliary rod (43).

3. The multi-functional testing fixture for power safety tools according to claim 2, characterized in that, The clamping and straightening assembly includes an arc-end push block (3) fixedly installed on the side walls of the two outer shells (2). The top of the mounting base (1) is provided with a first groove (17) located between the two outer shells (2). A guide rod (18) is fixedly connected between the inner walls of the two ends of the first groove (17). A placement block (15) is slidably fitted on the guide rod (18). A first spring (19) is fixedly connected between the placement block (15) and the inner wall of the end of the first groove (17) away from the second groove (24). Side blocks (16) are fixedly installed on the outer walls of both sides of the outer shell (2).

4. The multi-functional testing fixture for power safety tools according to claim 3, characterized in that, The top of the two side blocks (16) is fixedly mounted with the same portal frame (13), the top of the portal frame (13) is fixedly mounted with a third box (14), the top of the portal frame (13) is provided with a connecting rod (33) that is slidably connected to it, the end of the connecting rod (33) located inside the third box (14) is fixedly mounted with a second rectangular piston (32) that is slidably connected to the inner wall of the third box (14), and the end of the connecting rod (33) located below the third box (14) is fixedly mounted with a pressure block (34) located directly above the placement block (15).

5. The multi-functional testing fixture for power safety tools according to claim 4, characterized in that, The two side blocks (16) have right trapezoidal cross sections. One end of the connecting pipe (6) is connected to the third box (14). The end of the connecting pipe (6) connected to the third box (14) is located on the side of the second rectangular piston (32) away from the connecting rod (33).

6. The multi-functional testing fixture for power safety tools according to claim 5, characterized in that, The cleaning assembly includes a fixing block (9) fixedly mounted on the top of the mounting base (1). A second housing (10) is fixedly mounted on one side wall of the fixing block (9) near the first groove (17). A movable rod (20) is slidably connected to one end of the second housing (10) near the first groove (17). A third rectangular piston (39) is fixedly mounted on one end of the movable rod (20) inside the second housing (10) and slidably connected to the inner wall of the second housing (10). The third rectangular piston (39) and the second housing... (10) A third spring (40) is fixedly connected to the inner wall of one end near the first groove (17). A rectangular rod (44) is slidably connected to the movable rod (20) and located outside the second box (10). An auxiliary block (41) located above the side block (16) is fixedly installed at one end of the rectangular rod (44) near the second groove (24). A fourth spring (42) is fixedly connected between the auxiliary block (41) and the rectangular rod (44). An anti-detachment block (21) is fixedly connected to the other end of the rectangular rod (44).

7. The multi-functional testing fixture for power safety tools according to claim 6, characterized in that, A horizontal plate (11) located above the auxiliary block (41) is fixedly installed on the outer wall of the fixed block (9) near the first groove (17). A round rod (12) is rotatably connected to the bottom of the horizontal plate (11). The round rod (12) is located on the side of the auxiliary block (41) near the first groove (17). The cross-section of the auxiliary block (41) is a right-angled triangle. A vacuum pipe (23) and a collection pipe (45) connected to the interior of the second box (10) are provided. The ends of the vacuum pipe (23) and the collection pipe (45) connected to the second box (10) are located on the side of the third rectangular piston (39) away from the movable rod (20). A one-way valve is provided in both the vacuum pipe (23) and the collection pipe (45).

8. The multifunctional testing fixture for power safety tools according to claim 7, characterized in that, One of the portal frames (13) and one of the placement blocks (15) are rotatably connected to the side wall of the second groove (24) with an installation cylinder (22). The other portal frame (13) and the other placement block (15) are fixedly installed with an installation rod (31) on the side wall of the second groove (24). The two installation rods (31) are located in the two installation cylinders (22) respectively. The outer wall of the two installation rods (31) is provided with a spiral groove (37). The inner wall of the two installation cylinders (22) is fixedly installed with a semi-circular slider (38). The two sliders (38) are located in the two grooves (37) respectively and are slidably connected to the inner wall of the two grooves (37) respectively. The outer wall of the two installation cylinders (22) is provided with a dust suction port (30). The end of the two dust suction pipes (23) away from the second box (10) is connected to the two dust suction ports (30) respectively.

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