Tool and method for installing insulating sheath of drop-out fuse without power failure

Abstract

The invention relates to a tool and a method for installing an insulating sheath of a drop-out fuse without power outage, which are arranged in the technical field of electrical installation tools, the tool comprises a main operating rod and an installation mechanism at the top of the main operating rod, and the installation mechanism is composed of a protection mechanism, a clamping mechanism, a rotating mechanism and a fixing mechanism. A semi-open protective shell of the protective mechanism accommodates a lower support arm in a non-working state, and the clamping mechanism controls an upper support arm and the lower support arm to form a clamping space through a driving motor; the rotating mechanism drives a rotating connecting piece through a double-shaft motor to adjust the angle of the fixed cover; a pressure sensor is arranged in a fixing cover of the fixing mechanism to monitor the contact pressure of a clamping piece I and a clamping piece II, and accurate alignment is achieved through a fuse rod passing hole. The electric control mechanism integrates a controller, a sensor and an indicating lamp, and automatic operation and real-time feedback are achieved. The installation method comprises the steps of clamping coarse adjustment, rotating fine adjustment, alignment fine adjustment and tightening installation, and it is ensured that sheath installation is completed safely and efficiently under the condition that power is not cut off.

Description

Technical Field

[0001] The invention belongs to the technical field of electrical installation tools, and in particular relates to a non-stop installation tool for an insulating sheath of a drop-out fuse. Background Art

[0002] Drop-out fuses are typically used as switchgear for high-voltage transformers or high-voltage branch lines. They offer excellent protection, simple structure, reliable operation, and numerous advantages, including economical and safe operation. They are widely used in distribution networks. In actual operation, drop-out fuses typically utilize an insulating sheath to prevent accidental contact with the live fuse body. This prevents electric shock accidents caused by accidental contact and reduces insulation degradation due to environmental factors, thereby reducing the probability of flashover failures. However, most insulation sheath installation tools rely on manual adjustment, making precise alignment difficult. This can lead to offset or poor contact, increasing the risk of subsequent failures.

[0003] The prior art publication number CN119695680A discloses a tool for installing the insulation protection sleeve of a drop-out fuse without power outages. The tool's auxiliary mechanism includes a movable ring and a spring-loaded telescopic rod. Clamps, a spliced ​​long rod, and auxiliary mechanisms are used to clamp and lift the insulation sleeve, while a hollow rod and air pump are used for surface cleaning. However, the tool lacks a graded adjustment structure and mechanism, resulting in significant deficiencies in installation accuracy, safety, and ease of use. Summary of the Invention

[0004] The technical problem solved by the present invention is to overcome the defects in the prior art and provide a tool for installing the insulating sheath of a drop-out fuse without power outage.

[0005] The technical solution adopted in the present invention is as follows:

[0006] The non-stop power-off installation tool for the insulating sheath of a drop-out fuse described in the present invention includes a main operating lever, a mounting mechanism is provided on the top of the main operating lever, the mounting mechanism includes a protective mechanism, a clamping mechanism, a rotating mechanism and a fixing mechanism, the fixing mechanism includes a fixed cover arranged in pairs, the fixed cover is connected to the rotating mechanism, the rotating mechanism is connected to the clamping mechanism, the clamping mechanism is fixed inside the protective mechanism, and the bottom of the protective mechanism is connected to the top of the main operating lever.

[0007] The protective mechanism includes a protective shell, which is semi-open. One closed end of the protective shell is connected to the main operating lever. The outer side of the protective shell is clamped with an installation shell I. The middle part of the installation shell I is provided with a hollow part I. The protective shell is also provided with a plurality of through holes and a plurality of bolt holes. The through holes correspond to the upper and lower ends of the hollow part I, and fixing bolts are provided in the bolt holes.

[0008] The clamping mechanism includes an upper arm and a lower arm used in pairs. One end of the lower arm is connected to the upper arm, and the other end is fixedly connected to a rotating block. The rotating block is circular and is rotatably connected to a drive motor. The lower arm is housed inside the protective shell in the non-working state, and the drive motor is arranged inside the mounting shell I.

[0009] The rotating mechanism includes a mounting shell II, which is connected to the end of the upper arm away from the lower arm. The mounting shell II is provided with a hollow part II, and a dual-axis motor is provided in the hollow part II. The rotating ends on both sides of the dual-axis motor are connected to rotating connectors.

[0010] The fixing mechanism includes an upper pile head guard cover and a lower pile head guard cover, which are respectively connected to the outer sides of the upper and lower ends of the fixed cover. The upper and lower pile head guard covers are provided with fuse rod passing holes on the ends away from the fixed cover, and the fixed cover is connected to the rotating connecting piece.

[0011] A clamping part I and a clamping part II are provided inside the fixed cover. The clamping part I is provided above the clamping part II. Pressure sensors are provided at the bottom of the clamping part I and the clamping part II.

[0012] A square hole is provided on one side of the fixed cover away from the upper pile head guard cover and the lower pile head guard cover, and the square hole is provided between the clamping part I and the clamping part II.

[0013] An electric control mechanism is provided on the operating lever, which includes a power supply, a controller, an indicator light and a plurality of control buttons.

[0014] The driving motor, the dual-axis motor, the pressure sensor, the power supply, the indicator light and the control button are all electrically connected to the controller.

[0015] The method for installing the insulating sheath of a drop-out type fuse without power outage is based on a tool for installing the insulating sheath of a drop-out type fuse without power outage, and includes the following steps:

[0016] S1: Operation preparation: The operator wears personal protective equipment and carries the non-stop installation tool with the insulation sheath of the drop-out fuse to the operation site. The operator also conducts a visual inspection of the tool to ensure that all components are intact and the electronic control mechanism is operating normally.

[0017] S2: Coarse clamping adjustment: lift the installation tool to the fuse installation position through the main operating lever, operate the electronic control mechanism to start the drive motor, so that the lower arm rotates and unfolds from the protective shell, driving the upper arm to form a clamping space;

[0018] S3: Rotational fine-tuning: adjust the dual-axis motor to drive the rotating connector, and sleeve the fixed cover onto the fuse post through the square hole. The pressure sensor monitors the contact pressure between the clamping part I and the clamping part II in real time. Stop the operation when the indicator light shows that the clamping is stable.

[0019] S4: Fine-tune the position. Control the drive motor to rotate in the opposite direction so that the upper and lower arms clamp the insulating sheath and slide along the surface of the fuse. At the same time, fine-tune the angle of the fixed cover through the rotating mechanism to ensure that the fuse rod is accurately aligned with the fuse rod through the hole.

[0020] S5: Tighten the installation. After confirming that the insulating sheath completely covers the pile head, retract the lower arm into the protective shell, separate the fixed cover and the pile head, and complete the installation without power outage.

[0021] The present invention has the following beneficial effects:

[0022] 1. The semi-open protective mechanism can store the lower arm, reducing the size of the tool, improving the convenience of carrying and operation, and preventing damage to components when not in operation.

[0023] 2. The drive motor drives the upper and lower arms to form an adjustable clamping space, automatically controls the clamping force, avoids manual operation errors, and improves installation accuracy.

[0024] 3. The dual-axis motor in the rotating mechanism cooperates with the rotating connector to achieve multi-angle fine-tuning of the fixed cover, ensuring that the fuse rod through hole is accurately aligned with the fuse rod, reducing the risk of installation offset.

[0025] 4. The pressure sensor in the fixing cover of the fixing mechanism monitors the contact pressure of the clamping part I and the clamping part II in real time, and feedbacks the clamping status through the indicator light to prevent safety hazards caused by overpressure or loosening.

[0026] 5. The electric control mechanism integrates power supply, controller and sensor to realize automatic control of the whole process of clamping, rotation and alignment, reducing manual intervention and improving operation efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a structural diagram of the protection mechanism;

[0029] Figure 3 This is an exploded schematic diagram of the protection mechanism;

[0030] Figure 4 It is a structural diagram of the clamping mechanism;

[0031] Figure 5 Schematic diagram of the disassembled clamping mechanism;

[0032] Figure 6 It is a structural diagram of the rotating mechanism;

[0033] Figure 7 This is a structural diagram of the fixed mechanism from perspective 1;

[0034] Figure 8 This is a structural diagram of the second perspective of the fixing mechanism;

[0035] Figure 9 It is a schematic diagram of the structure of a drop-out fuse;

[0036] Figure 10 This is a schematic diagram showing a perspective 1 of a specific embodiment of the present invention;

[0037] Figure 11 This is a schematic diagram of a second perspective of a specific embodiment of the present invention;

[0038] Figure 12 Schematic diagram of the steps of the method of the present invention.

[0039] Among them: 1. Main operating lever; 2. Protection mechanism; 201. Protection shell; 202. Mounting shell I; 203. Bolt; 3. Clamping mechanism; 301. Upper support arm; 302. Lower support arm; 303. Drive motor; 304. Rotating block; 4. Rotating mechanism; 401. Mounting shell II; 402. Dual-axis motor; 403. Rotating connector; 5. Fixing mechanism; 501. Fixing cover; 502. Upper pile head guard cover; 503. Lower pile head guard cover; 504. Fuse rod through hole; 505. Square hole; 506. Connector I; 507. Connector II; 6. Electric control mechanism. DETAILED DESCRIPTION

[0040] Example 1:

[0041] like Figures 1 to 11 As shown, the non-stop power-off installation tool for the insulating sheath of the drop-out fuse described in the present invention includes a main operating lever 1. The top of the main operating lever 1 is provided with an installation mechanism. The installation mechanism includes a protective mechanism 2, a clamping mechanism 3, a rotating mechanism 4 and a fixing mechanism 5. The fixing mechanism 5 includes a fixed cover 501 arranged in a pair. The fixed cover 501 is connected to the rotating mechanism 4, and the rotating mechanism 4 is connected to the clamping mechanism 3. The clamping mechanism 3 is fixed inside the protective mechanism 2, and the bottom of the protective mechanism 2 is connected to the top of the main operating lever 1.

[0042] The protective mechanism 2 includes a protective shell 201, which is semi-open. The closed end of the protective shell 201 is connected to the main operating lever 1. The outer side of the protective shell 201 is clamped with an installation shell I 202. The middle part of the installation shell I 202 is provided with a hollow part I. The protective shell 201 is also provided with a plurality of through holes and a plurality of bolt holes. The through holes correspond to the upper and lower ends of the hollow part I, and the bolt holes are provided with fixing bolts 203.

[0043] The clamping mechanism 3 includes an upper arm 301 and a lower arm 302 used in pairs. One end of the lower arm 302 is connected to the upper arm 301, and the other end is fixedly connected to a rotating block 304. The rotating block 304 is circular and is rotatably connected to a drive motor 303. The lower arm 302 is stored inside the protective shell 201 in the non-working state, and the drive motor 303 is arranged inside the mounting shell I202.

[0044] The rotating mechanism 4 includes a mounting housing II 401, which is connected to the end of the upper arm 301 away from the lower arm 302. The mounting housing II 401 is provided with a hollow portion II, and a dual-axis motor 402 is provided in the hollow portion II. The rotating ends on both sides of the dual-axis motor 402 are connected to a rotating connector 403.

[0045] The fixing mechanism 5 includes an upper pile head guard 502 and a lower pile head guard 503, which are respectively connected to the outer sides of the upper and lower ends of the fixed cover 501. The upper pile head guard 502 and the lower pile head guard 503 are provided with a fuse rod through hole 504 on the end away from the fixed cover 501, and the fixed cover 501 is connected to the rotating connecting piece 403.

[0046] A clamping part I 506 and a clamping part II 507 are provided inside the fixed cover 501. The clamping part I 506 is provided above the clamping part II 507. Pressure sensors are provided at the bottom of the clamping part I 506 and the clamping part II 507.

[0047] A square hole 505 is provided on the side of the fixed cover 501 away from the upper pile head protective cover 502 and the lower pile head protective cover 503, and the square hole 505 is provided between the clamping piece I 506 and the clamping piece II 507.

[0048] An electric control mechanism 6 is provided on the main operating lever 1. The electric control mechanism 6 includes a power supply, a controller, an indicator light and a plurality of control buttons.

[0049] The driving motor 303, the dual-axis motor 402, the pressure sensor, the power supply, the indicator light and the control button are all electrically connected to the controller.

[0050] Specifically, the main operating lever 1 is made of high-strength epoxy resin composite material, and is provided with anti-slip textures and insulating coatings to ensure the stability and safety of the operator when working at height.

[0051] Specifically, the protective shell 201 in the protective mechanism 2 is integrally formed, and a silicone buffer layer is embedded in the inner side of the protective shell 201 to achieve the purpose of dustproof and waterproof.

[0052] Specifically, the driving motor 303 in the clamping mechanism 3 adopts a 24V DC reduction motor, the rotating block 304 is fixedly connected to the lower arm 302, and the two rotating blocks 304 are rotatingly connected to ensure that no offset occurs during rotation. When not in operation, the lower arm 302 is completely stored in the protective shell 201. Preferably, the lower arm 302 can be fixed by a magnetic lock to prevent accidental deployment. The two rotating blocks 304 are each connected to a driving motor 303, so that the clamping mechanisms 3 on both sides can move independently.

[0053] Specifically, the dual-axis motor 402 of the rotating mechanism 4 adopts a dual-output shaft stepper motor, which drives the fixed cover 501 through the rotating connector 403 to achieve angle fine-tuning. The hollow part II on the mounting shell II 401 can facilitate the rotation of the rotating connector 403 on the one hand, and ensure the heat dissipation of the motor during long-term operation on the other hand.

[0054] Specifically, the surfaces of the clamping parts I 506 and the clamping parts II 507 on the fixing mechanism 5 are plated with an insulating ceramic coating, and the sensors at the bottom of the clamping parts I 506 and the clamping parts II 507 are thin-film sensors. When the pressure value reaches the set threshold, the indicator light lights up to indicate that the current clamping is stable. The square hole 505 on the fixing cover 501 matches the protrusion of the fuse post to prevent misalignment and slipping during installation.

[0055] Example 2:

[0056] like Figure 12 As shown, the method for installing the insulating sheath of a drop-out type fuse without power outage according to the present invention is based on a tool for installing the insulating sheath of a drop-out type fuse without power outage, and includes the following steps:

[0057] S1: Operation preparation: The operator wears personal protective equipment and carries the non-stop installation tool with the insulation sheath of the drop-out fuse to the operation site. The operator then performs a visual inspection of the tool to ensure that all components are intact and the electronic control mechanism 6 is operating normally.

[0058] S2: Coarse clamping adjustment: lift the installation tool to the fuse installation position via the main operating lever 1, and operate the electronic control mechanism 6 to start the drive motor 303, causing the lower arm 302 to rotate and unfold from the protective housing 201, driving the upper arm 301 to form a clamping space;

[0059] S3: Fine-tune the rotation by adjusting the dual-axis motor 402 to drive the rotating connector 403. Attach the fixing cover 501 to the fuse post through the square hole 505. The pressure sensor monitors the contact pressure between the clamping part I 506 and the clamping part II 507 in real time. Stop the operation when the indicator light shows that the clamping is stable.

[0060] S4: Fine-tune the position. Operate the drive motor 303 to rotate in the opposite direction, so that the upper arm 301 and the lower arm 302 clamp the insulating sheath and slide along the surface of the fuse. At the same time, fine-tune the angle of the fixed cover through the rotating mechanism 4 so that the fuse rod is accurately aligned with the position of the fuse rod through the hole 504.

[0061] S5: Tighten the installation. After confirming that the insulating sheath completely covers the pile head, retract the lower support arm 302 into the protective shell 201, separate the fixed cover 501 and the pile head, and complete the installation without power outage.

[0062] Specifically, before preparing for operation, it is necessary to confirm the power supply of the electronic control mechanism 6 and the no-load operation status of the test drive motor 303 and the dual-axis motor 402. At the same time, an infrared thermometer should be used to detect the surface temperature of the fuse. If there is an abnormal temperature rise, the operation should be suspended.

[0063] Specifically, the operator starts the drive motor 303 through the button on the electric control mechanism 6, and the drive motor 303 drives the lower arm 302 to expand to a certain angle. The clamping space formed by the upper arm 301 and the lower arm 302 ensures that the spacing is sufficient to adapt to the matching installation of the insulating sheath.

[0064] Specifically, the dual-axis motor 402 drives the rotating connector 403 to adjust a smaller angle each time, and the operator gradually aligns the square hole 505 and the pile head through the control buttons on the electric control mechanism 6.

[0065] Specifically, when performing fine-tuning of the alignment, align the fixed cover 501 with the fuse and then tighten the angle of the clamping mechanism 3 so that the fixed cover 501 is closer to the fuse. Preferably, the fixed cover 501 on one side can be tightened and first sleeved on the outside of the fuse, and then the installation is completed by tightening the fixed cover 501 on the other side.

Claims

1. A tool for installing an insulating sheath of a drop-out fuse without power outage, comprising a main operating lever (1), characterized in that: The top of the main operating rod (1) is provided with a mounting mechanism, the mounting mechanism comprising a protective mechanism (2), a clamping mechanism (3), a rotating mechanism (4) and a fixing mechanism (5), the fixing mechanism (5) comprising a pair of fixed covers (501), the fixed covers (501) being connected to the rotating mechanism (4), the rotating mechanism (4) being connected to the clamping mechanism (3), the clamping mechanism (3) being fixed inside the protective mechanism (2), and the bottom of the protective mechanism (2) being connected to the top of the main operating rod (1).

2. The non-stop power-off installation tool for the insulating sheath of a drop-out fuse according to claim 1, characterized in that: The protective mechanism (2) comprises a protective shell (201), the protective shell (201) is semi-open, one closed end of the protective shell (201) is connected to the main operating rod (1), the outer side of the protective shell (201) is clamped with a mounting shell I (202), the middle part of the mounting shell I (202) is provided with a hollow part I, the protective shell (201) is also provided with a plurality of through holes and a plurality of bolt holes, the through holes corresponding to the upper and lower ends of the hollow part I, and the bolt holes are provided with fixing bolts (203).

3. The non-stop power-off installation tool for the insulating sheath of a drop-out fuse according to claim 2, characterized in that: The clamping mechanism (3) comprises an upper arm (301) and a lower arm (302) used in pairs, one end of the lower arm (302) is connected to the upper arm (301), and the other end is fixedly connected to a rotating block (304), the rotating block (304) is circular, and the rotating block (304) is rotatably connected to a driving motor (303), the lower arm (302) is stored inside the protective housing (201) in a non-working state, and the driving motor (303) is arranged inside the mounting housing I (202).

4. The non-stop power-off installation tool for the insulating sheath of a drop-out fuse according to claim 3, characterized in that: The rotating mechanism (4) comprises a mounting housing II (401), the mounting housing II (401) being connected to one end of the upper arm (301) away from the lower arm (302), the mounting housing II (401) being provided with a hollow portion II, a dual-axis motor (402) being provided in the hollow portion II, and the rotating ends on both sides of the dual-axis motor (402) being connected to a rotating connector (403).

5. The non-stop power-off installation tool for the insulating sheath of a drop-out fuse according to claim 4, characterized in that: The fixing mechanism (5) comprises an upper pile head guard (502) and a lower pile head guard (503), wherein the upper pile head guard (502) and the lower pile head guard (503) are respectively connected to the outer sides of the upper and lower ends of the fixing cover (501), and a fuse rod through hole (504) is provided on one end of the upper pile head guard (502) and the lower pile head guard (503) away from the fixing cover (501), and the fixing cover (501) is connected to the rotating connector (403).

6. The non-stop power-off installation tool for the insulating sheath of a drop-out fuse according to claim 5, characterized in that: A clamping part I (506) and a clamping part II (507) are provided inside the fixed cover (501), the clamping part I (506) is provided above the clamping part II (507), and pressure sensors are provided at the bottom of the clamping part I (506) and the clamping part II (507).

7. The non-stop power-off installation tool for the insulating sheath of a drop-out fuse according to claim 5, characterized in that: A square hole (505) is provided on the fixed cover (501) at a side away from the upper pile head guard (502) and the lower pile head guard (503), and the square hole is provided between the clamping part I (506) and the clamping part II (507).

8. The non-stop power-off installation tool for the insulating sheath of a drop-out fuse according to claim 5, characterized in that: The main operating lever (1) is provided with an electric control mechanism (6), and the electric control mechanism (6) comprises a power supply, a controller, an indicator light and a plurality of control buttons.

9. The non-stop power-off installation tool for the insulating sheath of a drop-out type fuse according to claim 8, characterized in that: The driving motor (303), the dual-axis motor (402), the pressure sensor, the power supply, the indicator light and the control button are all electrically connected to the controller.

10. A method for installing an insulating sheath of a drop-out fuse without power outage, characterized in that: A non-stop power-off installation tool for an insulating sheath of a drop-out fuse according to any one of claims 1 to 9 comprises the following steps: S1: Operation preparation: the operator wears personal protective equipment and carries the non-stop installation tool of the drop-out fuse sheath to the operation site, and performs a visual inspection of the tool to ensure that all components are intact and the electric control mechanism (6) is operating normally; S2: Clamping coarse adjustment: lift the installation tool to the fuse installation position through the main operating lever (1), operate the electric control mechanism (6) to start the drive motor (303), so that the lower arm (302) rotates and unfolds from the protective shell (201), driving the upper arm (301) to form a clamping space; S3: Rotation fine-tuning, adjusting the dual-axis motor (402) to drive the rotating connector (403), sleeve the fixed cover (501) on the fuse post through the square hole (505), and the pressure sensor monitors the contact pressure of the clamping part I (506) and the clamping part II (507) in real time. When the indicator light shows that the clamping is stable, the operation stops; S4: fine-tuning the position, controlling the driving motor (303) to rotate in the opposite direction, so that the upper arm (301) and the lower arm (302) clamp the insulating sheath and slide along the surface of the fuse, and at the same time, fine-adjusting the angle of the fixed cover (501) through the rotating mechanism (4) so ​​that the fuse rod through the hole (504) is accurately aligned with the fuse position; S5: Tighten the installation, and after confirming that the insulating sheath completely covers the pile head, retract the lower arm (302) into the protective housing (201), separate the fixed cover (501) and the pile head, and complete the non-stop installation.

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