Universal grounding operating rod

Abstract

The utility model relates to the technical field of electric power engineering, and particularly discloses a universal grounding operating rod which comprises an insulating operating rod, a universal ball cup and a universal wire clamp, a wire pressing tongue is arranged on the inner side of the universal wire clamp in a sliding mode, a first hydraulic cylinder is arranged at the bottom end of the universal wire clamp, and a universal ball is arranged at the bottom of the universal wire clamp. A ball head cover is arranged at the top of the universal ball head seat, a cavity is formed in the universal ball head seat, a second hydraulic cylinder is fixedly arranged in the cavity, and a friction limiting mechanism is arranged at the top of the second hydraulic cylinder. According to the technical scheme, lifting of the wire pressing tongue is controlled through the hydraulic assembly, traditional bolt rotating adjustment is replaced, the adjusting efficiency of the wire pressing tongue is improved, when the ball head base is separated from the universal ball head, an operator can rapidly adjust the clamping angle of the universal wire clamp according to the actual situation, the ball head base is controlled to be tightly attached to and make contact with the universal ball head, and the wire pressing tongue can be adjusted conveniently. The position angle of the universal wire clamp can be quickly limited, so that the angle adjustment convenience of the universal wire clamp is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power engineering, in particular to a universal grounding operating rod. Background Art

[0002] According to the relevant power safety regulations of the state and the power industry, when workers are working on power equipment, three-phase short-circuit grounding wires must be installed in all directions where power may be supplied to the work site. This is a reliable safety measure to protect workers from sudden calls at the work site. At the same time, the residual charge of the disconnected part of the equipment can also be discharged due to grounding. The prior art is to fix a wire clamp with a screw on the insulating operating rod, rotate the insulating operating rod to drive the screw to compress the wire (remove the insulating operating rod to rotate in the opposite direction), connect the soft copper wire on the wire clamp and fix it to the grounding point with a grounding clamp to realize the installation of the grounding wire. The implementation scheme of the prior art is usually to fix the wire clamp at 90 degrees, and use gear transmission to change the force direction to drive the screw to compress the wire. Since the wire clamp is fixed at 90 degrees, only the installation of the grounding wire of the wire perpendicular to the ground is solved, and the installation of wires at other angles is still difficult. After searching, the application number is (201720865240.7), which discloses a universal spiral compression grounding wire operating rod.

[0003] The above-mentioned patent uses a universal ball as a universal rotation method for the wire clamp, uses a bolt to close the universal ball to limit the angle, and adjusts the lifting of the wire pressing tongue by rotating the bolt. In the process of realizing the utility model, the inventor found that at least the following problems in the prior art have not been solved: the tightening effect of the bolt to tighten the universal ball is poor, and it is difficult to ensure the stability of the wire clamp. Secondly, the lifting of the wire pressing tongue is adjusted by rotating the bolt, which is inefficient. Improvements are needed, so we propose a universal grounding operating rod. Utility Model Content

[0004] The utility model aims to provide a universal grounding operating rod, which solves the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a universal grounding operating rod, comprising an insulating operating rod, a universal ball head seat and a universal wire clamp, a wire pressing tongue is slidably arranged on the inner side of the universal wire clamp, a hydraulic cylinder 1 for adjusting the lifting and lowering of the wire pressing tongue is arranged at the bottom of the universal wire clamp, a universal ball head is arranged at the bottom of the universal wire clamp, a spherical groove for clamping the universal ball head is arranged inside the universal ball head seat, a ball head cover for limiting the universal ball head is fixedly arranged on the top of the universal ball head seat by bolts, a cavity is opened inside the universal ball head seat, a hydraulic cylinder 2 is fixedly arranged inside the cavity, a friction limiting mechanism for limiting the rotation of the universal ball head is arranged on the top of the hydraulic cylinder 2, the friction limiting mechanism comprises a ball head base, a pressure sensor, a pressure plate and a spring limiting mechanism, a controller for displaying the value of the pressure sensor is arranged on the outside of the insulating operating rod, an electromagnetic valve 1 and an electromagnetic valve 2 are fixedly arranged on the outside of the universal ball head seat, the electromagnetic valve 1 is connected with the hydraulic cylinder 1 through a pipeline, and the electromagnetic valve 2 is connected with the hydraulic cylinder 2 through a pipeline.

[0006] As a preferred implementation of the technical solution of the present application, an internally threaded sleeve is fixedly provided at the bottom of the universal wire clamp, a convex rod is fixedly provided on the outside of the universal ball head, and a stud for threaded connection with the internally threaded sleeve is provided on the top of the convex rod.

[0007] As a preferred implementation of the technical solution of the present application, a plurality of concave holes are provided on the surface of the universal ball head, a concave ball groove is provided on the surface of the ball head base, and a plurality of convex columns are integrally formed on the surface of the concave ball groove.

[0008] As a preferred implementation of the technical solution of the present application, the pressure sensor is arranged at the bottom of the ball head base, and the pressure sensor is located between the ball head base and the pressure plate.

[0009] As a preferred implementation of the technical solution of the present application, the spring limiting mechanism includes a limiting rod fixed to the bottom of the ball head base, a spring is embedded on the outside of the limiting rod, and the bottom end of the limiting rod passes through the pressure plate.

[0010] As a preferred implementation of the technical solution of the present application, a sliding groove is provided on the inner vertical wall of the universal wire clamp, and one end of the wire pressing tongue is clamped in the sliding groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The technical solution of the present application controls the lifting and lowering of the wire pressing tongue through a hydraulic component, replacing the traditional bolt rotation adjustment, thereby improving the adjustment efficiency of the wire pressing tongue. When the ball head base is separated from the universal ball head, the operator can quickly adjust the clamping angle of the universal wire clamp according to actual conditions, control the ball head base and the universal ball head to be in close contact, and quickly limit the position angle of the universal wire clamp, thereby optimizing the convenience of adjusting the angle of the universal wire clamp.

[0013] 2. The technical solution of the present application monitors the tightening force applied by the pressure plate to the ball head base through a pressure sensor, and determines the pressure range in which the universal ball head can be limited by the ball head base according to actual conditions. Subsequently, it is only necessary to check the pressure value of the pressure sensor on the controller to know whether the universal ball head is tightened, thereby ensuring the limited stability of the universal wire clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0015] Figure 1 This is a three-dimensional diagram of a universal grounding operating rod of the utility model;

[0016] Figure 2 It is a partial cross-sectional view of a universal grounding operating rod of the utility model;

[0017] Figure 3 This is an exploded view of the universal ball head and the ball head base.

[0018] In the figure: 1. Insulated operating rod; 2. Controller; 3. Universal ball head seat; 4. Universal ball head; 5. Ball head cover; 6. Universal wire clamp; 7. Slide groove; 8. Wire pressing tongue; 9. Hydraulic cylinder 1; 10. Solenoid valve 1; 11. Solenoid valve 2; 12. Ball head base; 13. Pressure sensor; 14. Pressure plate; 15. Cavity; 16. Hydraulic cylinder 2; 17. Internal threaded sleeve; 18. Protruding rod; 19. Stud; 20. Spring; 21. Limit rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Embodiment 1, as Figure 1-3As shown, the utility model provides a technical solution: a universal grounding operating rod, including an insulating operating rod 1, a universal ball head seat 3 and a universal wire clamp 6, the insulating operating rod 1 is sleeved under the universal ball head seat 3, a threaded sleeve is arranged under the universal ball head seat 3, the threaded sleeve can be threadedly connected with the top of the insulating operating rod 1, a wire pressing tongue 8 is slidably arranged on the inner side of the universal wire clamp 6, a hydraulic cylinder 9 for adjusting the lifting of the wire pressing tongue 8 is arranged at the bottom of the universal wire clamp 6, a universal ball head 4 is arranged at the bottom of the universal ball head seat 3, a spherical groove for clamping the universal ball head 4 is arranged inside the universal ball head seat 3, and a useful A ball head cover 5 is used to limit the universal ball head 4, a cavity 15 is opened inside the universal ball head seat 3, a hydraulic cylinder 16 is fixedly arranged inside the cavity 15, a friction limit mechanism for limiting the rotation of the universal ball head 4 is arranged on the top of the hydraulic cylinder 16, the friction limit mechanism includes a ball head base 12, a pressure sensor 13, a pressure plate 14 and a spring limit mechanism, a controller 2 for displaying the value of the pressure sensor 13 is arranged outside the insulating operating rod 1, a solenoid valve 10 and a solenoid valve 11 are fixedly arranged outside the universal ball head seat 3, the solenoid valve 10 is connected to the hydraulic cylinder 9 through a pipeline, and the solenoid valve 11 is connected to the hydraulic cylinder 16 through a pipeline.

[0021] In a specific embodiment of the utility model, the solenoid valve 10 and the solenoid valve 2 11 are connected to the oil pump and the oil tank (not shown in the figure) through pipelines, and the controller 2 is integrated with control buttons for controlling the solenoid valve 10 and the solenoid valve 2 11. By adjusting the opening and closing of the solenoid valve 10 and the solenoid valve 2 11, the start and stop of the hydraulic cylinder 1 9 and the hydraulic cylinder 2 16 can be controlled. By adjusting the oil circuit direction of the solenoid valve 10 and the solenoid valve 2 11, the extension and retraction of the push rods of the hydraulic cylinder 1 9 and the hydraulic cylinder 2 16 can be controlled. The extension and retraction of the push rod of the hydraulic cylinder 9 determines the lifting and lowering of the wire pressing tongue 8. During the lifting and lowering process of the wire pressing tongue 8, one end of the wire pressing tongue 8 always slides in the slide groove 7. The surface of the universal ball head 4 is provided with a large number of concave holes. The convex columns on the surface of the groove of the ball head base 12 cooperate with the concave holes on the surface of the universal ball head 4, and the ball head base 12 is in close contact with the universal ball head 4, so that the universal ball head 4 is tightly limited by the ball head base 12. The steps for installing the universal ball head 4 into the universal ball head seat 3 are: first separate the stud 19 from the internal threaded sleeve 17, and then assemble the ball head cover 5, the stud 19 and the internal threaded sleeve 17 are installed, so that the universal ball head 4 and the universal wire clamp 6 form a whole. When the ball head base 12 is not in contact with the universal ball head 4, the operator can manually adjust the clamping position of the universal wire clamp 6, or use the mutual contact between the universal wire clamp 6 and the fixed object when it is in the air to adjust the clamping position of the universal wire clamp 6. After the clamping angle position of the universal wire clamp 6 is determined, the push rod of the hydraulic cylinder 16 is extended to make the ball head base 12 and the universal ball head 4 In close contact, the pressure plate 14 will generate pressure on the pressure sensor 13 during the process, and the value will be read by the controller 2 and displayed on the display screen. For example, when the pressure value generated by the pressure plate 14 on the pressure sensor 13 is between 15N and 20N, the universal ball head 4 can be tightly limited by the ball head base 12. Therefore, when the pressure value displayed on the controller 2 is between 15N and 20N, the action of the hydraulic cylinder 2 16 can be closed in time to avoid damage caused by excessive clamping force or unstable limitation of the universal ball head 4 caused by insufficient clamping force.

[0022] In the preferred technical solution, an internally threaded sleeve 17 is fixedly provided at the bottom of the universal wire clamp 6, a protruding rod 18 is fixedly provided on the outside of the universal ball head 4, and a stud 19 for threaded connection with the internally threaded sleeve 17 is provided on the top of the protruding rod 18, thereby realizing the detachability of the universal wire clamp 6 and the universal ball head 4 and facilitating the installation of the ball head cover 5.

[0023] In the preferred technical solution, a plurality of concave holes are provided on the surface of the universal ball head 4, a concave ball groove is provided on the surface of the ball head base 12, and a plurality of convex columns are integrally formed on the surface of the concave ball groove. When the convex columns of the concave ball groove of the ball head base 12 are pressed and fitted with the concave holes on the surface of the universal ball head 4, the limiting force of the ball head base 12 on the rotation of the universal ball head 4 can be increased.

[0024] In the preferred technical solution, the pressure sensor 13 is arranged at the bottom of the ball head base 12, and the pressure sensor 13 is located between the ball head base 12 and the pressure plate 14. The pressure sensor 13 is used to avoid the problem of damage caused by excessive pressing force of the pressure plate 14 or unstable limitation of the universal ball head 4 caused by insufficient pressing force.

[0025] In the preferred technical solution, the spring limiting mechanism includes a limiting rod 21 fixed to the bottom of the ball head base 12, a spring 20 is embedded on the outside of the limiting rod 21, and the bottom end of the limiting rod 21 passes through the pressure plate 14. The spring limiting mechanism is used to buffer the action of the hydraulic cylinder 16.

[0026] In the preferred technical solution, a slide groove 7 is provided on the inner vertical wall of the universal wire clamp 6, and one end of the wire pressing tongue 8 is clamped inside the slide groove 7. The slide groove 7 is used to improve the stability of the wire pressing tongue 8 when it is raised or lowered.

[0027] Working principle: The wire pressing tongue 8 is controlled to rise and fall through the controller 2, so that the wire pressing tongue 8 cooperates with the universal wire clamp 6 to clamp and install the grounding wire. When clamping the wire segment, if the clamping angle is not suitable for quick clamping, the push rod of the hydraulic cylinder 2 16 can be controlled to retract, and the ball head base 12 is separated from the universal ball head 4. At this time, the mutual contact between the universal wire clamp 6 and the fixed object is used to adjust the clamping position of the universal wire clamp 6, and then the push rod of the hydraulic cylinder 2 16 is controlled to extend, so that the ball head base 12 is in close contact with the universal ball head 4. During the process, the pressure plate 14 will generate pressure on the pressure sensor 13, and the value is read through the controller 2 and displayed on the display screen. After reaching the specified pressure value range, the action of the hydraulic cylinder 2 16 is closed.

Claims

1. A universal grounding operating rod, characterized in that: The invention comprises an insulating operating rod (1), a universal ball head seat (3) and a universal wire clamp (6), wherein the insulating operating rod (1) is sleeved under the universal ball head seat (3), a wire pressing tongue (8) is slidably arranged on the inner side of the universal wire clamp (6), a hydraulic cylinder (9) for adjusting the lifting of the wire pressing tongue (8) is arranged at the bottom end of the universal wire clamp (6), a universal ball head (4) is arranged at the bottom of the universal wire clamp (6), a ball groove for clamping the universal ball head (4) is arranged inside the universal ball head seat (3), a ball head cover (5) for limiting the universal ball head (4) is arranged on the top of the universal ball head seat (3) by bolts, and a cavity (15) is opened inside the universal ball head seat (3). A hydraulic cylinder 2 (16) is fixedly arranged inside the cavity (15); a friction limit mechanism for limiting the rotation of the universal ball head (4) is arranged on the top of the hydraulic cylinder 2 (16); the friction limit mechanism comprises a ball head base (12), a pressure sensor (13), a pressure plate (14) and a spring limit mechanism; a controller (2) for displaying the value of the pressure sensor (13) is arranged outside the insulating operating rod (1); a solenoid valve 1 (10) and a solenoid valve 2 (11) are fixedly arranged outside the universal ball head seat (3); the solenoid valve 1 (10) is connected to the hydraulic cylinder 1 (9) through a pipeline, and the solenoid valve 2 (11) is connected to the hydraulic cylinder 2 (16) through a pipeline.

2. The universal grounding operating rod according to claim 1, characterized in that: An internal threaded sleeve (17) is fixedly provided at the bottom of the universal wire clamp (6), a convex rod (18) is fixedly provided on the outside of the universal ball head (4), and a stud (19) for threaded connection with the internal threaded sleeve (17) is provided at the top of the convex rod (18).

3. The universal grounding operating rod according to claim 1, characterized in that: The surface of the universal ball head (4) is provided with a plurality of concave holes, the surface of the ball head base (12) is provided with a concave ball groove, and the surface of the concave ball groove is integrally formed with a plurality of convex columns.

4. The universal grounding operating rod according to claim 1, characterized in that: The pressure sensor (13) is arranged at the bottom of the ball head base (12), and the pressure sensor (13) is located between the ball head base (12) and the pressure plate (14).

5. The universal grounding operating rod according to claim 1, characterized in that: The spring limiting mechanism comprises a limiting rod (21) fixed to the bottom of the ball head base (12), a spring (20) is embedded on the outside of the limiting rod (21), and the bottom end of the limiting rod (21) passes through the pressure plate (14).

6. The universal grounding operating rod according to claim 1, characterized in that: A sliding groove (7) is provided on the inner vertical wall of the universal wire clamp (6), and one end of the wire pressing tongue (8) is clamped inside the sliding groove (7).

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