CN215451260U - Variable moment of torsion ground sword crank - Google Patents

Abstract

A variable torque ground knife crank comprises a knife head and an operating rod, wherein the operating rod is L-shaped, one end of the operating rod is connected with the knife head, a torsion disc is arranged at the corner of the L-shaped other end of the operating rod, and an alarm loop bin is arranged at the lower part of the operating rod; the torque force measuring device is characterized by further comprising an alarm needle, the alarm needle is connected with the alarm connecting ring, a torque scale is displayed on the torque force plate, and the force measuring needle is displayed on the torque force plate according to actual stress.

Description

Variable moment of torsion ground sword crank

Technical Field

The invention relates to an electric switch cabinet grounding disconnecting link, in particular to a circuit breaker grounding disconnecting link operating handle.

Background

With the progress of the manufacturing process of the power equipment, the power supply device of the power equipment is more and more stable, and in order to further improve and reduce the equipment damage caused by manually operating the grounding disconnecting link, the grounding disconnecting link crank is designed. In the existing grounding knife switch, in order to enable the grounding knife switch of the circuit breaker to conveniently realize the functions of closing (grounding knife switch closing) and exiting (grounding knife switch opening), an L-shaped grounding knife crank is generally adopted for completing the functions. The existing ground knife crank is made of L-shaped steel, and the head and the ground knife body head form a mortise and tenon structure. In the use process, because every people's strength is different, there is big operating personnel of power usually, has the ground sword and damages the risk, and little operating personnel of power have the operation not to arrive the position and lead to the operation can't accomplish the risk. Therefore, the existing ground knife crank has high requirements on operators, and equipment is damaged due to improper operation. Based on this, it is very important to design a variable moment of torsion ground sword crank, avoids equipment operation not in place and equipment to damage.

Disclosure of Invention

The invention aims to: the ground knife crank with the variable torque is designed, can adapt to different operators, realizes reliable opening and closing of the ground knife, and avoids the phenomenon that the ground knife cannot be completed due to improper operation or is damaged due to excessive operation force.

The technical scheme of the invention is as follows: a variable torque ground knife crank comprises a knife head and an operating rod, wherein the operating rod is L-shaped, one end of the operating rod is connected with the knife head, a torsion disc is arranged at the corner of the L-shaped other end of the operating rod, and an alarm loop bin is arranged at the lower part of the operating rod;

the torque force measuring device is characterized by further comprising an alarm needle, the alarm needle is connected with the alarm connecting ring, a torque scale is displayed on the torque force plate, and the force measuring needle is displayed on the torque force plate according to actual stress.

The operating rod is made of steel.

The limit value of the alarm needle is set through the torsion disc.

The alarm needle moves along the alarm connecting ring in a semicircle way on the torsion plate

The outer layer of the alarm connecting ring is of a plastic insulating structure, the central shaft is a metal part, the outer side of the central shaft is connected with the alarm needle, and the inner part of the central shaft is connected with the alarm loop bin through a circuit.

The outside of the alarm loop bin is made of plastic.

The internal circuit of the alarm loop bin adopts a circuit board in a single-layer PCB form containing electronic elements.

The torsion plate is made of aluminum.

The switch closure is formed by the alarm needle and the force measuring needle.

The alarm loop bin comprises a buzzer.

The invention has the following remarkable effects:

1, the technical means of alarm loop design is adopted, so that the technical effect of avoiding equipment damage is realized

2, the technical means of variable torque measurement is adopted, so that the technical effect of avoiding the situation that the ground cutter is not operated in place due to the fact that the equipment cannot exert force is achieved

3, the technical means that the dial plate operation force is visible is adopted, and the technical effect that when equipment has problems, the force application degree is convenient to describe is realized

4, the technical means that the ground knife head can be replaced is adopted, and the technical effect of being suitable for the operation of various devices (not only a ground knife, but also a breaker trolley) is realized

5, the steel material is adopted, so that the technical effects of high reliability, constant torsion and better reliability are realized

6, the appearance and the operation method similar to those of the traditional ground knife crank are adopted, and the technical effect of training universality is realized

And 7, the technical means of adjusting the operation direction before use is adopted, so that the technical effect of avoiding the error operation direction of the ground cutter is realized.

Drawings

FIG. 1 is a view of a variable torque ground tool crank body;

FIG. 2 is a side view of a variable torque ground crank.

FIG. 3 is a side view of a variable torque ground crank torsion disc.

Fig. 4 is a circuit diagram of a variable torque ground knife crank alarm.

In the figure, 1 cutter head; 2 operating a lever; 3, an alarm needle; 4, a torsion plate; 5, a force measuring needle; 6, an alarm loop bin; 7 alarm connecting ring.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.

The utility model provides a variable moment of torsion ground sword crank, includes tool bit 1, action bars 2 is the L shape, and its one end is connected with tool bit 1, and installation torsion dish 4 of another L shape corner, the alarm circuit storehouse 6 of 2 lower parts installation of action bars, action bars 2 are steel material, have the invariable characteristic of torsion, the power of surveying promptly on torsion dish 4 corresponds, and material memory can be good, and antifatigue is strong

The alarm device further comprises an alarm needle 3, the alarm needle 3 is connected with the alarm connecting ring 7, and semicircular motion of the alarm needle 3 on the torsion disc 4 along the alarm connecting ring 7 can be achieved. The torsion scale display is arranged on the torsion plate 4, and the force measuring needle 5 is displayed on the torsion plate 4 according to the actual stress; on the other hand, the limit value setting of the alarm needle 3 is also set by the torsion plate 4

The outer layer of the alarm connecting ring 7 is of a plastic insulation structure, the central shaft is a metal component, the outer side of the alarm connecting ring is connected with the alarm needle 3, and the inner part of the alarm connecting ring is in circuit connection with the alarm loop bin 6, so that the outer insulation and the inner part of the alarm connecting ring are reliably connected.

The outside of alarm loop storehouse 6 and the alarm go-between 7 outside adopt the plastics material, and 6 internal circuit in alarm loop storehouse adopts the circuit board of the individual layer PCB (printed circuit board) form that contains the electronic component, and torsion dish 4 adopts the aluminium system material, and other materials are chromium vanadium steel.

When in work, the method comprises the following steps:

1. checking the availability of the device: the alarm needle 3 is rotated to the position of 0 force to coincide with the force measuring needle 5, and the alarm sound of the alarm loop bin 6 is checked

2. Determining the switch operation direction: checking the model of the ground cutter, determining the force limit, adjusting the alarm needle 3 to the stress position, and pressing the alarm needle 3 to rotate the alarm needle to the force limit position along the alarm connecting ring 7 during operation

3. Installing a crank to the position of the ground cutter and separating and combining: replacing the tool bit 1 corresponding to the ground knife, inserting the tool bit 1 into the ground knife edge, and rotating the operating rod 2 to realize the ground knife opening and closing operation according to the operating direction of front positioning

4. Reading torque force display: during operation, the force measuring needle 5 rotates along with the operating rod 2, and the actual force is displayed on the torsion disc 4

5. And (3) over-force indication: when the operating force exceeds the design force of the ground cutter, the force measuring needle 5 is connected with the alarm needle 3, the alarm loop is switched on, and the alarm loop bin 6 gives an alarm to remind the operator that the ground cutter cannot be operated any more due to overlarge force

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

The invention has the following advantages:

1. the manufacturing material of the invention adopts a steel torsion variable material, and the fixed torsion of the material realizes the quantitative measurement of the torsion.

2. The invention adopts the semicircular torsion disc, and can reliably display the actual torsion.

3. The invention adopts the alarm loop to realize variable torque measurement, and avoids personnel injury caused by mechanical devices.

4. The connecting rod cutter head can be replaced according to actual cutter types.

5. According to the actual needs, the breaker trolley can be operated, and the operation of entering and exiting the breaker trolley is realized.

6. The invention can change the operating force of different ground knives correspondingly.

7. The alarming direction needs to be adjusted before the ground cutter is used, so that the error in the operation direction of the ground cutter can be avoided.

Claims (10)

1. The utility model provides a variable moment of torsion ground sword crank which characterized in that: the device comprises a tool bit (1) and an operating rod (2), wherein the operating rod (2) is L-shaped, one end of the operating rod is connected with the tool bit (1), a torsion disc (4) is arranged at the corner of the L-shaped other end of the operating rod, and an alarm loop bin (6) is arranged at the lower part of the operating rod (2);

the torque force measuring device is characterized by further comprising an alarm needle (3), the alarm needle (3) is connected with an alarm connecting ring (7), a torque force scale display is arranged on the torque force disc (4), and the force measuring needle (5) is displayed on the torque force disc (4) according to actual stress.

2. A variable torque ground cutter crank according to claim 1, wherein: the operating rod (2) is made of steel materials.

3. A variable torque ground cutter crank according to claim 1, wherein: the limit value of the alarm needle (3) is set through the torsion disc (4).

4. A variable torque ground cutter crank according to claim 1, wherein: the alarm needle (3) moves in a semicircular way on the torsion disc (4) along the alarm connecting ring (7).

5. A variable torque ground cutter crank according to claim 1, wherein: the outer layer of the alarm connecting ring (7) is of a plastic insulating structure, the central shaft is a metal component, the outer side of the central shaft is connected with the alarm needle (3), and the inner part of the central shaft is in circuit connection with the alarm loop bin (6).

6. A variable torque ground cutter crank according to claim 1, wherein: the outside of the alarm loop bin (6) is made of plastic.

7. The variable torque ground cutter crank of claim 6, wherein: the internal circuit of the alarm loop bin (6) adopts a single-layer PCB circuit board containing electronic elements.

8. A variable torque ground cutter crank according to claim 1, wherein: the torsion plate (4) is made of aluminum.

9. A variable torque ground cutter crank according to claim 1, wherein: the alarm needle (3) and the force measuring needle (5) form switch closure.

10. A variable torque ground cutter crank according to claim 1, wherein: the alarm loop bin (6) comprises a buzzer.

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