CN113669334B - Transformer substation gas detection fixing clamp and using method thereof - Google Patents

Abstract

The invention relates to a substation gas detection fixing clamp, which belongs to the technical field of substation maintenance equipment. The substation gas detection fixing clamp includes a left clamp body, a right clamp body, a pawl and a rotating pin; the left clamp body and the right clamp body are movably connected by a rotating pin; a return spring is connected between the left clamp body and the right clamp body The left clip body is provided with a pawl inside the right clip body through a torsion spring and a pin; the pawl is intermittently connected to the left clip body; the left clip body is an integrated structure, including a bearing fork, a fixed handle and a sandwich The lower end of the sandwich body is connected with a fixed handle; the upper end of the sandwich body is connected with a bearing fork through a connecting rod; the interior of the sandwich body is provided with a connecting hole A; The cloth has ratchets. The substation gas detection fixing clamp has a compact structure, solves the problem of low work efficiency in the existing detection method of SF6 inflatable equipment, and meets the needs of efficient use of enterprises.

Description

A substation gas detection fixed clamp and its use method

technical field

The invention relates to a substation gas detection fixed clamp and a method for using the same, belonging to the technical field of substation maintenance equipment.

Background technique

In the field of power grid substation maintenance, it is necessary to regularly detect the SF6 inflatable equipment in the substation. At present, for SF6 inflatable testing equipment, after aligning the disc-shaped interface of the testing equipment with the disc-shaped interface on the SF6 inflatable equipment, two operators hold the clamps respectively, and place the testing equipment in two directions. After the disc-shaped interface is clamped with the disc-shaped interface on the SF6 inflatable device, start the detection equipment to detect the SF6 inflatable device. Although the existing detection methods can meet the needs of SF6 inflatable detection equipment, they have the problem of low work efficiency due to the need for multiple people to operate. In addition, when two clamps are used to clamp the disc-shaped interface of the detection device and the disc-shaped interface of the SF6 inflatable device, it is very easy to cause the problem of gas leakage due to the difference in clamping force and the loose connection of the interface. It is necessary to develop a kind of fixed clamp for this reason, to solve the above problems existing in the existing SF6 inflation detection equipment mode.

Contents of the invention

The object of the present invention is to provide a substation gas detection fixed pliers with compact structure and ingenious design to solve the problem of low working efficiency in the existing detection methods of SF6 inflatable equipment.

Technical scheme of the present invention is:

A substation gas detection fixed pliers, including a left clamp body, a right clamp body, a pawl and a revolving pin; the left clamp body and the right clamp body are movably connected through a revolving pin; the left clamp body and the right clamp body are connected with a reset Spring; it is characterized in that: the inside of the right clip on one side of the left clip body is equipped with a pawl through a torsion spring and a pin; the pawl is intermittently connected to the left clip body; the left clip body is an integral structure, including a load fork , fixed handle and sandwich body; the lower end of the sandwich body is connected with a fixed handle; the upper end of the sandwich body is connected with a bearing fork through a connecting rod; the inside of the sandwich body is provided with a connecting hole A; one side of the sandwich body is in an arc-shaped structure, Ratchets are evenly distributed on the arc structure; the pawls are connected with the ratchets in intermittent contact.

The right clip body includes a movable handle, a support arm, a compression block and a compression spring; the support arm is inserted into the sandwich body and arranged in a cross shape with it; the middle part of the support arm is provided with a connecting hole B; the support arm is connected through the The hole B and the revolving pin are movably connected with the connecting hole A on the interlayer body; the two sides of the upper end of the support arm are hingedly connected with a compression block through a support plate; the outer side of the interlayer body is movably connected with a movable handle through a revolving pin; the lower end of the movable handle is connected with the support arm A compression spring is connected between the lower ends.

The upper end of the movable handle is provided with an avoidance fork; the upper end of the avoidance fork is equipped with a revolving pin; the inside of the avoidance fork is equipped with a pawl through a torsion spring and a pin.

The middle part of the ratchet is movably installed inside the movable handle through torsion springs and pins; the upper end of the ratchet extends to the outside of the movable handle.

The advantages of the present invention are:

The substation gas detection clamp has a compact structure and an ingenious design. During work, the disc-shaped interface of the detection equipment can be clamped and fixed with the disc-shaped interface of the SF6 inflatable device, thus solving the problem of SF6 inflatable equipment. The existing detection method has the problem of low work efficiency, which meets the needs of enterprises for efficient use.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the sectional structure schematic diagram of the present invention;

Fig. 3 is the schematic diagram of the enlarged structure of place A in Fig. 2;

Fig. 4 is a schematic structural view of the left clip body of the present invention;

Fig. 5 is a schematic diagram of the right view structure of Fig. 4;

Fig. 6 is a schematic structural view of the right clip body of the present invention;

Fig. 7 is a structural schematic diagram of the movable handle of the present invention;

Fig. 8 is a schematic diagram of the right view structure of Fig. 7;

Fig. 9 is a schematic diagram of the structure of the right clip body of the present invention after the movable handle is removed;

Fig. 10 is a schematic diagram of the right view structure of Fig. 9;

FIG. 11 is a schematic diagram of an enlarged structure at B in FIG. 1;

Fig. 12 is a schematic diagram of the working state structure of the present invention.

In the figure: 1. Left clip body; 2. Right clip body; 3. Pawl; 4. Repin; 5. Loading fork; 6. Interlayer body; 7. Fixed handle; 8. Connecting rod; ; 10, connection hole A; 11, ratchet; 12, pin; 13, return spring; 14, support arm; 15, connection hole B;

Detailed ways

The substation gas detection fixed clamp includes a left clamp body 1, a right clamp body 2, a ratchet 3 and a revolving pin 4 (see accompanying drawings 1 and 2 of the specification).

The left clip body 1 is an integral structure, including a load fork 5, a fixed handle 7 and a sandwich body 6 (see Figure 4 of the specification); the lower end of the sandwich body 6 is connected with a fixed handle 7; the upper end of the sandwich body 6 is connected by a connecting rod 8 Carrying fork 5 is arranged (referring to description accompanying drawing 4 and 5). The carrying fork 5 has a semi-ring structure; the outer diameter of the carrying fork 5 is consistent with the outer diameter of the disc-shaped interface on the SF6 inflatable device; the inner diameter of the carrying fork 5 is the connecting pipe of the disc-shaped interface on the SF6 inflatable device The outer diameter is the same; when working in this way, after the carrying fork 5 is plugged into the disc-shaped interface on the SF6 inflatable device, the connecting pipe on the SF6 inflatable device can be positioned by the inner diameter of the carrying fork 5 to prevent the carrying fork from working. 5 Occurrence of the problem of deviation from the station.

A connection hole A10 is provided inside the interlayer body 6; one side of the interlayer body 6 has an arc-shaped structure, and ratchets 11 are evenly distributed on the arc-shaped structure (see Figure 4 of the specification).

The right clip body 2 includes a movable handle 17, a support arm 14, a compression block 16 and a compression spring 18 (see accompanying drawing 6 of the specification); See accompanying drawing 2 of the specification); the middle part of the supporting arm 14 is provided with a connecting hole B15 (see accompanying drawing 9 of the specification); Figures 4, 5 and 9). Both the support arm 14 and the left clip body 1 can rotate around the rotating pin 4 when stressed.

Both sides of the upper end of the support arm 14 are hingedly connected with a compression block 16 through a support plate (see accompanying drawing 9 of the specification); a movable handle 17 is provided on the outside of the sandwich body 6 (see accompanying drawing 6 of the specification); the upper end of the movable handle 17 is provided with an escape Fork 9 (referring to accompanying drawing 8 of specification sheet); Respin 4 is equipped with on the upper end of avoidance fork 9; Movable handle 17 is kept movably connected with the interlayer body 6 on the left clip body 1 by respin 4.

Avoidance fork 9 on the movable handle 17 is equipped with ratchet 3 (referring to accompanying drawing 7 and 8 of specification sheet) by torsion spring and pin 12. The pawl 3 is connected with the ratchet 11 in intermittent contact. The middle part of the ratchet 3 is movably installed inside the avoidance fork 9 through the torsion spring and the pin 12; the upper end of the ratchet 3 extends to the outside of the avoidance fork 9 (see accompanying drawing 3 of the specification). During work, when one end of the ratchet 3 is moved, the ratchet 3 can be disengaged from the ratchet 11; When people loosen one end of the ratchet 3, the ratchet 3 can be connected with the ratchet 11 on the left clip body 1 under the action of the elastic force of the torsion spring; , the movable handle 17 and the left clip body 1 can only move closer to each other around the revolving pin 4 during work; Lock the left clip body 1 so as to avoid the action of opening between it and the movable handle 17.

A compression spring 18 is connected between the lower end of the movable handle 17 and the lower end of the support arm 14 (see accompanying drawings 1 and 6 of the specification). During work, when the compression block 16 at one end of the support arm 14 is under force, when the support arm 14 draws closer to the movable handle 17, it needs to overcome the elastic force of the compression spring 18 and draw in, so that the compression block 16 at one end of the support arm 14 can Under the action of the elastic force of the compression spring 18, a certain pressure is always maintained, thereby ensuring that the compression block 16 maintains a certain clamping force under the cooperation of the load fork 5 during work, thereby ensuring that the clamp can be operated smoothly. Complete the clamping and fixing work.

The outer surface of the lower end of the support arm 14 is provided with a clamping force scale 19; the inner side of the movable handle 17 is provided with a force indicator 20; the force indicator 20 extends above the clamping force scale 19 (see Figures 1 and 11 of the specification). The purpose of setting the force pointer 20 and the clamping force scale 19 in this way is: due to the pressing force provided by the compression spring 18 during the work, the clamping forceps will compress the spring 18 when the support arm 14 and the movable handle 17 are closer together. When the deformation is greater, the pressing force of the clamp is greater. In this way, the pressing force of the fixed pliers is proportional to the relative position between the support arm 14 and the movable handle 17, so after the support arm 14 is provided with a suitable clamping force scale 19, the movable handle 17 moves to drive the strength pointer 20 to indicate The clamping force scale 19 is the actual clamping force of the clamp, which can provide intuitive basis for the operator's operation.

A return spring 13 is connected between the fixed handle 7 of the left clip body 1 and the support arm 14 of the right clip body 2 (see accompanying drawing 1 of the specification); Under the action of the elastic force of the return spring 13, the left clip body 1 and the right clip body 2 always have a tendency to spread apart around the rotating pin 4.

The substation gas detection fixed pliers, when working, hold the fixed pliers horizontally with one hand, insert the bearing fork 5 from below to the interface of the equipment to be tested (that is, the disc-shaped interface on the SF6 inflatable equipment), Insert the pressing block 16 above the interface of the testing equipment (that is, the disc-shaped interface of the SF6 gas testing equipment) (see Figure 11 of the manual).

After the above work was completed, hold the movable handle 17 of the fixed clamp with one hand and the fixed handle 7 of the left clip body 1; the movable handle 17 and the fixed handle 7 will overcome the elastic force of the back-moving spring 13 and move closer to each other after being stressed; 17 and fixed handle 7 when moving closer to each other, the bearing fork 5 at one end of the left clamp body 1 and the pressing block 16 at one end of the right clamp body 2 will move closer to each other.

When the loading fork 5 conflicts with the interface of the equipment to be tested (that is, the disk-shaped interface on the SF6 inflatable equipment), and the pressing block 16 conflicts with the interface of the testing equipment (that is, the disk-shaped interface of the SF6 inflatable testing equipment), Continue to hold the movable handle 17 and the fixed handle 7 tightly; now the pressing block 16 will promote the support arm 14 to overcome the elastic force of the compressing spring 18 and move closer to the movable handle 17 around the revolving pin 4 after being stressed. In this process, the movable handle 17 will rotate relative to the left clip body 1, and the ratchet 3 on the movable handle 17 will act relative to the ratchet 11; At 19 o'clock, loosen the movable handle 17 and the fixed handle 7, and now the ratchet 3 and the ratchet 11 cooperate with each other to lock the movable handle 17 and the left clip body 1 relatively; and the compression block 16 are transferred to the interface of the equipment to be tested (i.e. the disc-shaped interface on the SF6 inflatable equipment), so that the compression block 16 will connect the disc-shaped interface on the SF6 inflatable equipment and the The disc-shaped interface of the SF6 inflatable testing equipment is clamped and fixed; in this way, the purpose of clamping and fixing the interface of the equipment to be tested and the interface of the testing equipment can be achieved by one-handed operation.

After the detection equipment has finished working, the pawl 3 is moved to make it out of contact with the ratchet 11; 13 Under the action of elastic force, it will be opened and reset quickly. After the fixing clamp is reset, the device to be tested and the testing device can be loosened, and then the fixing clamp can enter the next working cycle.

The substation gas detection clamp has a compact structure and an ingenious design. During work, the disc-shaped interface of the detection equipment and the disc-shaped interface on the SF6 inflatable device can be clamped and fixed by one-handed operation, thereby solving the problem of SF6 inflatable gas. The existing detection method of the equipment has the problem of low work efficiency, which meets the needs of enterprises for efficient use.

Claims (1)

1. A fixed clamp for substation gas detection, including left clamp body (1), right clamp body (2), ratchet (3) and revolving pin (4); left clamp body (1) and right clamp body (2) They are movably connected by a revolving pin (4); a return spring (13) is connected between the left clamp body (1) and the right clamp body (2); The inside of the body (2) is equipped with a pawl (3) through a torsion spring and a pin (12); the pawl (3) is connected to the left clip body (1) in intermittent contact; the left clip body (1) has an integrated structure, It includes a bearing fork (5), a fixed handle (7) and a sandwich body (6); the lower end of the sandwich body (6) is connected with a fixed handle (7); the upper end of the sandwich body (6) is connected with a bearing The fork (5); the interlayer body (6) is provided with a connection hole A (10); one side of the interlayer body (6) has an arc-shaped structure, and ratchets (11) are evenly distributed on the arc-shaped structure; The claw (3) is in intermittent contact with the ratchet (11); the right clip (2) includes a movable handle (17), a support arm (14), a pressing block (16) and a pressing spring (18); The support arm (14) is inserted into the sandwich body (6) and arranged in a cross shape; the middle part of the support arm (14) is provided with a connection hole B (15); the support arm (14) passes through the connection hole B (15) and The revolving pin (4) is movably connected with the connection hole A (10) on the interlayer body (6); the two sides of the upper end of the support arm (14) are hingedly connected with a compression block (16) through a support plate; the outer side of the interlayer body (6) passes through Repin (4) is movably connected with a movable handle (17); a compression spring (18) is connected between the lower end of the movable handle (17) and the lower end of the support arm (14); The upper end of the movable handle (17) is provided with an avoidance fork (9); the upper end of the avoidance fork (9) is equipped with a revolving pin (4); the inside of the avoidance fork (9) is passed through a torsion spring and a pin (12 ) is fitted with pawls (3); The middle part of the ratchet (3) is movably installed inside the movable handle (17) through the torsion spring and the pin (12); the upper end of the ratchet (3) extends to the outside of the movable handle (17); The outer surface of the lower end of the support arm (14) is provided with a clamping force scale (19); the inner side of the movable handle (17) is equipped with a force pointer (20); the force pointer (20) extends to the clamping force scale (19 ) above; When working, when the compression block (16) at one end of the support arm (14) is under force, when the support arm (14) moves closer to the movable handle (17), it needs to overcome the elastic force of the compression spring (18) and then gather it together. The compression block (16) at one end of the support arm (14) is always kept under a certain pressure under the action of the elastic force of the compression spring (18), thereby ensuring that the compression block (16) is in the position of the load fork (5) during work. Under cooperation, a certain clamping force is always maintained, thereby ensuring that the clamping clamp can successfully complete the clamping and fixing work when working.

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