Bypass non-power-cut operation magnetic type F-type busbar clamp

Abstract

The invention discloses a bypass non-power-cut operation magnetic type F-type busbar clamp, which comprises an insulating shell, a clamping frame, an internal conducting rod and a handle, and is characterized in that the clamping frame comprises an upper top plate, a lower bottom plate and an adjusting clamping structure; the adjusting clamping structure is a sliding rail structure and comprises a sliding rail and a lower bottom plate. A bent conducting rod is arranged in the lower bottom plate, the contact surface of the conducting rod is connected with the busbar for electrification, and electric energy is led out through the handle; the four permanent magnets are arranged at the joints of the upper top plate and the lower bottom plate respectively, stable connection is guaranteed, the magnetic poles of the rubidium-iron-boron magnets of the lower bottom plate can be changed by rotating the magnetic pole adjusting screws, then the magnetic force direction is changed, and a safety buckle structure is arranged to prevent the clamp from loosening. The clamp is connected with the upper top plate and the lower bottom plate through magnetic attraction, opening and closing of the clamp are controlled by changing magnetic poles, operation is easy, operation space is saved, and manpower is saved. The clamp shell is insulated, operators can be prevented from electric shock, and safety performance is good.

Description

Technical Field

[0001] This invention patent belongs to the technical field of live working on bypass without power interruption for busbar power taking, and relates to a magnetic F-type busbar clamp for live working on bypass without power interruption. Background Art

[0002] The continuous supply of electricity is an important cornerstone for the normal operation of people's production and life. With the continuous improvement of China's economic strength, more stringent standards have been put forward for the reliability of China's power supply. Ensuring power supply for major events, key projects, and uninterrupted power supply in important regions and departments has become an important social responsibility of power supply enterprises. When a sudden power grid failure (or renovation of the original line) occurs, the traditional maintenance operation method requires a long time to handle the failure under the condition of power outage of the line, resulting in a long power outage time and a decrease in the reliability of the power grid. Live working has incomparable advantages over the traditional maintenance operation method, and live working on bypass without power interruption is an important way of future live maintenance operation. In live working on bypass without power interruption, construction workers usually use a busbar clamp to take power from the busbar in the electrical cabinet to form a bypass. The existing busbar clamps generally move the clamping plate by bolts and clamp and fix the busbar. In this way, during the rotation and fixation process of the bolts, displacement changes will occur. Therefore, the bolts may touch other objects during the movement process, and the hand also has to move up or down with the movement of the bolts. For some power-taking areas with relatively small spaces, the hand is likely to touch other objects and it is inconvenient to operate. Excessive force applied when the surface of the busbar contacts the connecting device is likely to damage the busbar. When the difference between the thickness of the busbar and the telescopic range of the cable joint clamp is too large, the connection between the two is not firm, and it is not known whether it has been fixed securely, which also poses certain potential safety hazards. Summary of the Invention

[0003] Aiming at the defects that the busbar clamp in the prior art may be hindered by other objects during the process of fixing the busbar, and the busbar is not firmly clamped or the busbar is damaged, this busbar clamp can avoid being hindered by other objects during the clamping and fixing process, and is firmly clamped and fixed, easy to operate and easy to implement.

[0004] This invention is realized through the following technical solutions:

[0005] A magnetic F-shaped busbar clamp for live working on bypass includes an insulating housing, a clamping frame, an internal conducting rod, and a handle. The clamping frame includes an upper top plate, a lower bottom plate, and an adjusting clamping structure. The adjusting clamping structure is a slide rail structure, including a sliding track and a lower bottom plate. The lower bottom plate is provided with a cross-shaped connecting slider that enables it to move parallel on the sliding track. The clamping range is adjusted by the parallel movement of the cross-shaped connecting slider on the sliding track. A bent conducting rod is arranged inside the lower bottom plate. The contact surface of the conducting rod is connected to the busbar for power conduction, and the electric energy is led out through the handle. Two permanent magnets are arranged at each connection of the upper top plate and the lower bottom plate, a total of four permanent magnets, to ensure a firm connection. By rotating the magnetic pole adjusting screw, the magnetic poles of the neodymium iron boron magnets on the lower bottom plate can be changed, thereby changing the magnetic force direction, and a safety buckle structure is provided to prevent the clamp from loosening. This clamp magnetically connects the upper top plate and the lower bottom plate, and controls the opening and closing of the clamp by changing the magnetic poles. The operation is simple, the operation space is saved, and the labor is saved. The clamp housing is insulated, which can prevent operators from getting an electric shock, and has good safety performance.

[0006] Rotate the magnetic pole adjusting screw to make the magnets on the upper top plate and the lower bottom plate in a repulsive state. The upper top plate and the lower bottom plate bounce open. Place the busbar between the upper top plate and the lower bottom plate, and then continue to rotate the magnetic pole adjusting screw to make the magnets on the upper top plate and the lower bottom plate in an attractive state, so that the clamp clamps and fixes the busbar under the magnetic attraction. There is no need for manual opening and closing operations of the clamp. Therefore, during the busbar clamping process, the operating rod and the operator will not touch other objects.

[0007] A further feature is that a clamping area is formed between the upper top plate and the lower bottom plate, and multiple first long grooves are provided on the lower end surface of the upper top plate, and multiple second long grooves are provided on the upper end surface of the lower bottom plate.

[0008] The first long grooves and the second long grooves are provided so that when the busbar is clamped in the clamping area, the contact friction between the upper top plate, the lower bottom plate and the busbar can be increased, thereby strengthening the fastening effect of the busbar.

[0009] A further feature is that the cross-shaped connecting slider has an H-shaped hollow and is butted and inserted on the H-shaped sliding track to drive the lower bottom plate to move parallel on the slide rail. Setting the H-shaped hollow docking sliding track can better fit and stabilize the cross-shaped connecting slider. Lubricating oil is applied to the slide rail without the need for a lubrication system, and it has the advantages of saving lubricating oil, high precision, low friction coefficient, easy maintenance, and long service life.

[0010] A further feature is that the conducting rod is bent and formed with a transverse connecting rod and a longitudinal connecting rod. Bending the conducting rod and arranging it inside the lower bottom plate, compared with the conducting rod adjacent to the operating rod and located on the upper top plate, this way makes the operating space of the operating rod larger, convenient to use, and easy for the insulation safety of the clamp.

[0011] Further feature: an external thread is provided on the lower outer wall of the conductive rod inside the handle. The external thread is provided on the lower outer wall of the conductive rod so that the conductive rod can be connected to other metal extension rods for conduction.

[0012] Further feature: the insulating protective sleeve includes a body protective sleeve, a guide rod protective sleeve, and an operation protective sleeve. The body protective sleeve is wrapped around the outer wall of the clamping frame, the guide rod protective sleeve is wrapped around the outer wall of the conductive rod, and the operation protective sleeve is wrapped around the outer wall of the operating rod of the magnetic pole adjusting screw. In the above setting, an insulating protective sleeve is wrapped around the outer wall of the conductive fixture body to ensure the operation safety of the staff.

[0013] Further feature: the guide rod protective sleeve has a three-layer structure. The first layer is a semiconductor layer, the second layer is an insulating layer, and the third layer is the plastic outer shell of the handle, which conforms to the width of the human palm. The guide rod protective sleeve is set to have three layers with gradually increasing inner diameters from the inside to the outside. The semiconductor layer can slow down the field strength change between the conductor and the insulating layer, the insulating layer plays an insulating and protective role, and an insulating plastic outer shell is provided outside to facilitate the construction personnel to hold the handle for operation.

[0014] Further feature: insulating baffles are integrally formed at both ends of the body protective sleeve, and the insulating baffles block part of the adjusting and clamping structure. The insulating baffles are provided to block and protect the adjusting and clamping structure, avoiding excessive exposure of the adjusting and clamping structure, which may easily cause harm to the construction personnel when they touch it.

[0015] Further feature: anti-slip lines are provided on the outer wall of the operation protective sleeve. The anti-slip lines are provided to increase the friction between the hand and the operation protective sleeve, facilitating operation.

[0016] Further feature: a temperature sensor and an alarm are provided inside the lower bottom plate. Since heat is generated and transferred to the upper top plate and the lower bottom plate when the upper top plate and the lower bottom plate clamp the bus bar and conduct electricity, a temperature sensor is provided to detect the temperature at the lower bottom plate. When the temperature reaches the set limit value, the alarm will give an alarm to prompt the construction personnel, thus avoiding damage to the bus bar clamp due to excessive heat generation.

[0017] Further feature: two permanent magnets are provided at each connection of the upper top plate and the lower bottom plate, for a total of four permanent magnets.

[0018] When clamping the bus bar, the magnetic suction force makes the upper top plate and the lower bottom plate firmly connected and stably clamped.

[0019] Further feature: the permanent magnet material is selected as neodymium iron boron material, which has a very large magnetic energy product. Its strong magnetic suction force can ensure the stable clamping of the fixture. A magnetic pole adjusting screw is provided. By rotating the magnetic pole adjusting screw, bevel gear A and bevel gear B are driven to rotate, and then the magnet on the lower bottom plate is driven to rotate, changing the magnetic pole, controlling the direction of the magnetic force, and then controlling the opening and closing of the fixture.

[0020] Due to the strong magnetic force of the neodymium iron boron magnet, a force arm rod is arranged between the magnetic pole adjusting screw and the bevel gear transmission rod, making the operation more labor-saving.

[0021] An insurance buckle structure is set. The buckle button is connected with the buckle spring, and the female buckle is connected with the female buckle spring. The clamping is firm through the engagement of the male buckle and the female buckle, preventing the busbar from loosening.

[0022] When the fixture clamps the busbar, rotate the magnetic pole adjusting screw. The magnetic poles attract each other with opposite polarities. At the same time, the male buckle and the female buckle are engaged. When loosening the fixture, rotate the magnetic pole adjusting screw, and the rotation of the magnetic poles can disengage the male buckle and the female buckle. The clamping is firm and the operation is simple.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] In this invention patent, by setting the slide rail structure, the lower base plate moves parallel along the track through the cross-shaped slider, so as to clamp or loosen the busbar; a magnetic adsorption connection structure is set, and the magnetic attraction of the neodymium iron boron magnet makes the upper top plate and the lower base plate firmly connected, with stable clamping and no need for manual clamping, which is convenient for operation; the lower base plate magnet is set as a rotatable structure. By rotating the magnetic pole adjusting screw, the bevel gear mechanical structure is driven to rotate, and then the magnetic poles of the lower base plate magnet are changed, so that the magnetic force direction can be changed to control the opening and closing of the fixture; an insurance buckle structure is set. The buckle button is connected with the buckle spring, and the female buckle is connected with the female buckle spring. The clamping is firm through the engagement of the male buckle and the female buckle, preventing the busbar from loosening; by bending the conductive rod and arranging it inside the upper top plate, compared with the conductive rod adjacent to the operating rod and located on the lower base plate, this way provides a larger operating space for the operating rod and is convenient for use. Description of the Drawings

[0025] Figure 1 It is the front view of this invention patent;

[0026] Figure 2 It is the left view of the lower base plate of this invention patent;

[0027] Figure 3 It is the left view of the upper top plate of this invention patent;

[0028] Figure 4 For Figure 1 The partial enlarged view of structure 4 in

[0029] In the figure: 1 lower base plate; 11 conductive rod; 111 conductive rod contact surface; 12 cross-shaped connecting slider; 2 upper top plate; 3 sliding track; 4 insurance buckle structure; 41 male buckle; 42 female buckle; 43 male buckle spring; 5 permanent magnet; 6 conductive rod; 71 bevel gear A; 72 bevel gear B. Detailed Embodiment

[0030] The following further describes this invention patent in combination with the embodiments shown in the drawings.

[0031] In this embodiment, a magnetic F-type busbar clamp for live working on bypass includes an insulating housing, a clamping frame, an internal conducting rod and a handle. The clamping frame includes an upper top plate, a lower bottom plate and an adjusting clamping structure. The adjusting clamping structure is a slide rail structure, including a sliding track and a lower bottom plate. The lower bottom plate is provided with a cross-shaped connecting slider that enables it to move parallel on the sliding track. A bent conducting rod is installed inside the lower bottom plate, and the contact surface led out by the conducting rod is connected to the busbar for power supply. At the connection of the upper top plate and the lower bottom plate, two pieces are provided at each connection, for a total of four pieces of neodymium iron boron magnets. The clamping is ensured to be stable by the suction force of the neodymium iron boron magnets. By changing the magnetic poles of the two neodymium iron boron magnets on the lower bottom plate, the direction of the magnetic force is changed, thereby controlling the opening and closing of the clamp. And a safety buckle structure is provided. When clamping the busbar, the buckle can prevent the clamp from loosening. A clamping area is formed between the lower bottom plates to clamp the busbar.

[0032] A clamping area is formed between the upper top plate and the lower bottom plate. The conducting rod is bent to form a conductive contact surface. The contact surface of the conducting rod contacts the busbar to form a conductive channel to connect the bypass cable. External threads are provided on the outer wall of the lower part of the conducting rod so that a longitudinal connecting rod can connect other metal extension rods for conduction.

[0033] The insulating protective sleeve includes a body protective sleeve wrapped around the outer wall of the clamping frame, a guide rod protective sleeve wrapped around the outer wall of the conducting rod, and an operation protective sleeve wrapped around the outer wall of the magnetic pole adjusting screw. Insulating baffles are integrally formed at both ends of the body protective sleeve, and the insulating baffles block part of the adjusting clamping structure. The guide rod protective sleeve is in a three-layer wrapping shape, and the inner diameters increase sequentially from the inside to the outside, which are a semiconductor layer, an insulating layer and a handle plastic shell. The third layer conforms to the width of the human palm, and anti-slip lines are provided on the outer wall of the operation protective sleeve.

[0034] A clamping area is formed between the upper top plate and the lower bottom plate. And multiple first long grooves are provided on the lower end surface of the upper top plate, and multiple second long grooves are provided on the upper end surface of the lower bottom plate. When the busbar is clamped in the clamping area, the contact friction between the upper top plate, the lower bottom plate and the busbar can be increased, thereby strengthening the fastening effect of the busbar.

[0035] To prevent excessive heat from being generated when the upper top plate and the lower bottom plate clamp and fix the busbar, which may affect the use of the busbar clamp, a temperature sensor and an alarm are provided inside the lower bottom plate. When the temperature reaches the set limit value, the alarm will give an alarm to prompt the construction personnel.

[0036] To reduce labor input and simplify the operation, two pieces are provided at each connection of the upper top plate and the lower bottom plate, for a total of four pieces of permanent magnets. When clamping the busbar, the magnetic suction force makes the upper top plate and the lower bottom plate firmly connected and the clamping stable. When loosening the busbar, rotating the magnetic pole adjusting screw can change the direction of the magnetic force and bounce open the upper top plate and the lower bottom plate, without the need for manual fixing and loosening of the clamp.

[0037] To ensure that the fixture holds firmly without loosening and at the same time does not damage the busbar due to excessive force, a safety buckle structure is provided. The buckle button is connected to the buckle spring, and the female buckle is connected to the female buckle spring. The clamping is made stable by engaging the male buckle and the female buckle, preventing the busbar from loosening. When the fixture clamps the busbar, the male buckle and the female buckle are engaged. When the fixture is released, pressing the buckle button can cause the buckle spring to push the female buckle, thereby compressing the female buckle spring and disengaging the male buckle and the female buckle.

[0038] When the construction worker clamps the busbar with the fixture of the present invention, first connect the lower part of the conductive rod to the bypass cable, rotate the magnetic force adjusting screw to make the magnet of the fixture in a repulsive state, spring open the fixture, place the busbar in the clamping area, and then rotate the magnetic force adjusting screw to make the magnet of the fixture in an attractive state. The fixture automatically clamps under the action of magnetic attraction force and the buckle automatically locks. When releasing the busbar, press the buckle button, rotate the magnetic force adjusting screw to make the magnet of the fixture in a repulsive state, spring open the fixture, release the buckle button, and then the busbar can be taken out.

Claims

1. A magnetic F-type busbar fixture for bypass non-stop operation, characterized in that: It includes an insulating shell, a clamping frame, an internal conductive rod and a handle, wherein the clamping frame includes an upper top plate, a lower bottom plate and an adjustable clamping structure; the adjustable clamping structure is a slide rail structure, including a sliding track and a lower bottom plate, wherein the lower bottom plate is provided with a cross-shaped connecting slider that enables it to move parallel to the sliding track, and the clamping range is adjusted by the parallel movement of the cross-shaped connecting slider on the sliding track; a curved conductive rod is provided inside the lower bottom plate, and the contact surface of the conductive rod is connected to the busbar for power supply, and the electric energy is led out through the handle; two permanent magnets are provided at the connection between the upper top plate and the lower bottom plate, for a total of four permanent magnets, to ensure a stable connection, and the magnetic poles of the NdFeB magnets on the lower bottom plate are changed by rotating the magnetic pole adjusting screw, thereby changing the direction of the magnetic force, and a safety buckle structure is provided to prevent the clamp from loosening; Rotate the magnetic pole adjusting screw to put the magnets of the upper top plate and the lower bottom plate in a repulsive state, the upper top plate and the lower bottom plate pop open, place the busbar between the upper top plate and the lower bottom plate, and then continue to rotate the magnetic pole adjusting screw to put the magnets of the upper top plate and the lower bottom plate in an attractive state, so that the clamp clamps the busbar under the action of magnetic attraction.

2. According to claim 1, a magnetic F-type busbar clamp for bypass non-stop operation is characterized in that: A clamping area is formed between the upper top plate and the lower bottom plate, and a plurality of first long grooves are provided on the lower end surface of the upper top plate, and a plurality of second long grooves are provided on the upper end surface of the lower bottom plate; the first long grooves and the second long grooves are provided so that when the busbar is clamped in the clamping area, the contact friction between the upper top plate, the lower bottom plate and the busbar can be increased, thereby strengthening the fastening effect of the busbar.

3. According to the bypass non-stop operation magnetic F-type busbar clamp of claim 1, it is characterized in that: The cross-shaped connecting slide block has an H-shaped hollow and is plugged into the H-shaped sliding track to drive the lower base plate to move parallel to the sliding track.

4. According to the bypass non-stop operation magnetic F-type busbar clamp of claim 1, it is characterized in that: The conductive rod is bent to form a transverse connecting rod and a longitudinal connecting rod.

5. According to the bypass non-stop operation magnetic F-type busbar clamp of claim 1, it is characterized in that: The lower outer wall of the conductive rod inside the handle is provided with an external thread.

6. The magnetic F-type busbar fixture for bypass non-stop operation according to claim 1 is characterized in that: The insulating protective cover comprises a main body protective cover, a guide rod protective cover and an operating protective cover. The main body protective cover is wrapped around the outer wall of the clamping frame, the guide rod protective cover is wrapped around the outer wall of the conductive rod, and the operating protective cover is wrapped around the outer wall of the operating rod of the magnetic pole adjusting screw.

7. The magnetic F-type busbar clamp for bypass non-stop operation according to claim 1 is characterized in that: The guide rod protection cover has a three-layer structure, the first layer is a semiconductor layer, the second layer is an insulating layer, and the third layer is a plastic shell of the handle, which conforms to the width of a human palm. The guide rod protection cover is set to have three layers with increasing inner diameters from the inside to the outside. The semiconductor layer can slow down the field strength change between the conductor and the insulating layer, and the insulating layer plays the role of insulating protection. The insulating plastic shell is set on the outside to facilitate construction workers to hold the handle to operate.

8. The magnetic F-type busbar fixture for bypass non-stop operation according to claim 1 is characterized in that: Insulating baffles are integrally formed at both ends of the main protective cover, and the insulating baffles shield a portion of the adjusting clamping structure.

9. The magnetic F-type busbar fixture for bypass non-stop operation according to claim 1 is characterized in that: The outer wall of the operation protection cover is provided with anti-slip patterns.

10. The magnetic F-type busbar fixture for bypass non-stop operation according to claim 1 is characterized in that: The lower bottom plate is provided with a temperature sensor and an alarm; the upper top plate and the lower bottom plate are connected at two locations, a total of four permanent magnets. When clamping the busbar, the magnetic attraction makes the upper top plate and the lower bottom plate connected firmly and the clamping is stable; the permanent magnet material is made of nebium iron boron material; A safety buckle structure is provided, the buckle button is connected to the buckle spring, the female buckle is connected to the female buckle spring, and the male buckle and the female buckle are buckled together to ensure a firm clamping and prevent the busbar from loosening.

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