阅读说明：本技术 一种转子叶片拨动结构 (Rotor blade shifting structure ) 是由 徐建壮 王小颖 郑海亮 王坤 张成凯 于 2020-06-05 设计创作，主要内容包括：本申请属于发动机转子孔探检查技术领域,具体涉及一种转子叶片拨动结构包括：旋转杆；摆动杆,一端为铰接端,另一端为摆动端；铰接端与旋转杆的一端铰接；连丝,一端与摆动杆连接,另一端向旋转杆另一端方向延伸；转子叶片拨动结构具有：工作状态,摆动杆、旋转杆与摆动杆连接的一端自机匣上的过孔伸入至机匣内部,位于两个相邻静子叶片之间；连丝向机匣外侧拉紧,带动摆动杆摆动,使摆动端切入至两个相邻转子叶片之间；旋转杆旋转能够使摆动端与两个相邻转子叶片之一抵接；非工作状态,连丝松开,摆动杆在重力作用下摆动,使摆动端自两个相邻转子叶片之间脱出；摆动杆、旋转杆与摆动杆连接的一端能够自机匣上的过孔拔出至机匣外部。(The application belongs to the technical field of engine rotor hole inspection, concretely relates to rotor blade toggle structure includes: rotating the rod; one end of the swinging rod is a hinged end, and the other end of the swinging rod is a swinging end; the hinged end is hinged with one end of the rotating rod; one end of the connecting wire is connected with the swinging rod, and the other end of the connecting wire extends towards the other end of the rotating rod; the rotor blade toggle structure comprises: in the working state, the swinging rod and one end of the rotating rod connected with the swinging rod extend into the casing from the through hole on the casing and are positioned between two adjacent stator blades; the connecting wire is tensioned towards the outer side of the casing to drive the swinging rod to swing, so that the swinging end is cut into the space between two adjacent rotor blades; the rotating rod rotates to enable the swinging end to be abutted with one of two adjacent rotor blades; in a non-working state, the connecting wire is loosened, and the swinging rod swings under the action of gravity, so that the swinging end is separated from between two adjacent rotor blades; the swinging rod and one end of the rotating rod connected with the swinging rod can be pulled out of the casing from the through hole on the casing.)

1. A rotor blade toggling structure, comprising:

a rotating rod (1);

one end of the swinging rod is a hinged end, and the other end of the swinging rod is a swinging end; the hinged end is hinged with one end of the rotating rod (1);

one end of the connecting wire (3) is connected with the swinging rod, and the other end of the connecting wire extends towards the other end of the rotating rod (1);

the rotor blade toggle structure comprises:

in a working state, the swinging rod and one end of the rotating rod (1) connected with the swinging rod extend into the casing (4) from a through hole on the casing (4) and are positioned between two adjacent stator blades (5); the connecting wire (3) is tensioned towards the outer side of the casing (4) to drive the swinging rod to swing, so that the swinging end is cut into the space between two adjacent rotor blades (14); the rotating rod (1) rotates to enable the swinging end to be abutted with one of two adjacent rotor blades (14);

in a non-working state, the connecting wire (3) is loosened, and the swinging rod swings under the action of gravity, so that the swinging end is separated from between two adjacent rotor blades (14); the swing rod and the end, connected with the swing rod, of the rotating rod can be pulled out of the casing (4) from a through hole in the casing (4).

2. Rotor blade dialing structure according to claim 1,

the swing rod is divided into two sections, wherein one section is a first swing section (6), and the other section is a second swing section (7); the first swing section (6) is connected with the connecting wire (3), one end of the first swing section is a hinged end, and the other end of the first swing section is hinged with one end of the second swing section (7); the other end of the second swing section (7) is the swing end;

the working state comprises:

in a positive working state, the rotating rod (1) rotates in a positive direction, and the swinging end is abutted with one of two adjacent rotor blades (14), so that the rotor blades (14) can be stirred to rotate;

in a reverse working state, the rotating rod (1) rotates along the reverse direction, the swinging end is abutted against the other of the two adjacent rotor blades (14), the second swinging section (7) is stressed to overcome the gravity to deflect, and the swinging end bypasses the rotor blade (14).

3. Rotor blade dialing structure according to claim 2,

further comprising:

the hinge shaft (2) is arranged at one end of the first swinging section (6) back to the hinge end, the axis of the hinge shaft deviates from the vertical direction, and the hinge shaft is hinged with one end of the second swinging section (7) back to the swinging end;

the rotor blade toggle structure is as follows:

in the forward working state, under the action of gravity, one end of the second swing section (7), which is back to the swing end, abuts against one end of the first swing section (6), which is back to the hinged end, so that the rotor blade (14) can be stirred to rotate;

in the reverse operating state, the second swing section (7) is forced to deflect around the axis of the hinge shaft (2) against the force of gravity, so that the swing end can bypass the rotor blade (14).

4. Rotor blade dialing structure according to claim 3,

the axis of the articulated shaft (2) deviates from the vertical direction by 30-60 degrees.

5. Rotor blade dialing structure according to claim 1,

the rotating rod (1) is internally provided with a guide channel; one end of the guide channel extends to one end of the swinging rod (1), and an opening is formed in the outer wall of the rotating rod (1);

the outer wall of the rotating rod (1) is provided with a guide groove; the guide groove extends along the axial direction and is communicated with the other end of the guide channel;

the rotor blade toggle structure further comprises:

the displacement ring (8) is sleeved on the rotating rod (1) and can move along the axial direction, and the inner ring surface of the displacement ring is provided with a guide bulge; the guide protrusion extends into the guide groove; one end of the connecting wire (3) back to the swinging rod penetrates through the guide channel from the opening and extends into the guide groove to be connected with the guide protrusion.

6. Rotor blade dialing structure according to claim 5,

one end of the rotating rod (1) back to the swinging rod is provided with a positioning protrusion;

the outer wall of the displacement ring (8) is provided with a connecting bulge;

the rotor blade toggle structure further comprises:

the positioning cylinder (9) is sleeved on the connecting protrusion;

the rotor blade toggle structure is as follows:

in a working state, the displacement ring (8) moves back to the swinging rod to pull the connecting wire (3) to the outer side of the casing (4) so that the connecting protrusion is close to the positioning protrusion; the positioning barrel (9) slides on the connecting bulge to be sleeved on the positioning bulge;

when the device is not in working state, the positioning cylinder (9) slides on the connecting protrusion and is separated from the connecting protrusion, so that the displacement ring (8) can move towards the direction of the swinging rod to release the connecting wire (3).

7. Rotor blade dialing structure according to claim 6,

further comprising:

the spring (10) is sleeved on the rotating rod (1) and is positioned between the positioning protrusion and the displacement ring (8);

the rotor blade toggle structure is as follows:

in the working state, the spring (10) is pressed by the positioning protrusion and the displacement ring (8);

when the swing rod is not in working state, the spring (10) pushes the displacement ring (8) to move towards the direction of the swing rod by means of the elastic force of the spring.

8. Rotor blade dialing structure according to claim 1,

further comprising:

a support cylinder (11);

the bearing (12) is sleeved on the rotating rod (1) and is arranged in the supporting cylinder (11);

the rotor blade toggle structure is as follows:

in the working state, the supporting cylinder (11) is supported on the casing (4);

when the support cylinder is not in a working state, the support cylinder (11) can be separated from the casing (4).

9. Rotor blade dialing structure according to claim 8,

the via hole is a hole detector hole.

10. Rotor blade dialing structure according to claim 9,

the casing (4) is provided with a hole detector seat (13); the hole detector seat (13) is provided with a through hole communicated with the hole detector hole, so that the swinging rod and one end of the rotating rod (1) connected with the swinging rod can pass through the through hole;

the rotor blade toggle structure is as follows:

when the device is in a working state, the supporting cylinder (11) is clamped on the hole detector seat (13);

when the device is not in a working state, the supporting cylinder (11) can be separated from the hole detector seat (13).

Technical Field

The application belongs to the technical field of engine rotor hole inspection, and particularly relates to a rotor blade shifting structure.

Background

In the life cycle of an aircraft engine, hole probing inspection needs to be performed on the aircraft engine under the condition that the aircraft engine is not delivered, in this case, the engine is subjected to hole probing inspection, and in order to enable a hole probe extending into a casing through a hole probing hole to check each rotor blade distributed along the axial direction, each rotor blade needs to be shifted to enable each rotor blade to rotate.

At present, because on the machine casket just less to the hole finder hole on the stator blade, and should not set up more hole at the position of the just rotor blade of machine casket, be difficult to directly stir the rotor blade in the machine casket outside through the instrument, carry out the hole inspection to the engine under the condition that does not lose hair, the staff is most to stretch into the machine casket inside to stir its interior rotor blade through the machine casket exit position with its arm, make each rotor blade rotate, this kind of technical scheme has following defect:

1) the multifunctional equipment is arranged in the casing, so that the flexibility of the arm is greatly limited, and the arm is stretched into the casing to stir the rotor blade, so that the inconvenience is high;

2) the arm extends into the casing to stir the rotor blade, so that the working environment is severe, and great safety risk which is difficult to predict exists;

3) need arrange special staff to stir the rotor blade, this staff is relatively poor with all the other staff cooperations that carry out the hole and visit the inspection, influences the efficiency of hole and visit the inspection, has prolonged the cycle of hole and visit the inspection.

The present application has been made in view of the above-mentioned technical drawbacks.

It should be noted that the above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application without explicit evidence to suggest that the above content is already disclosed at the filing date of the present patent application.

Disclosure of Invention

It is an object of the present application to provide a rotor blade striking mechanism to overcome or mitigate at least one aspect of the technical disadvantages known to exist.

The technical scheme of the application is as follows:

a rotor blade striking structure comprising:

rotating the rod;

one end of the swinging rod is a hinged end, and the other end of the swinging rod is a swinging end; the hinged end is hinged with one end of the rotating rod;

one end of the connecting wire is connected with the swinging rod, and the other end of the connecting wire extends towards the other end of the rotating rod;

the rotor blade toggle structure comprises:

in the working state, the swinging rod and one end of the rotating rod connected with the swinging rod extend into the casing from the through hole on the casing and are positioned between two adjacent stator blades; the connecting wire is tensioned towards the outer side of the casing to drive the swinging rod to swing, so that the swinging end is cut into the space between two adjacent rotor blades; the rotating rod rotates to enable the swinging end to be abutted with one of two adjacent rotor blades;

in a non-working state, the connecting wire is loosened, and the swinging rod swings under the action of gravity, so that the swinging end is separated from between two adjacent rotor blades; the swinging rod and one end of the rotating rod connected with the swinging rod can be pulled out of the casing from the through hole on the casing.

According to at least one embodiment of the present application, in the above-mentioned rotor blade shifting structure, the oscillating rod is divided into two sections, wherein one section is a first oscillating section, and the other section is a second oscillating section; the first swing section is connected with the wire, one end of the first swing section is a hinged end, and the other end of the first swing section is hinged with one end of the second swing section; the other end of the second swing section is a swing end;

the working state comprises the following steps:

in a forward working state, the rotating rod rotates in the forward direction, and the swinging end is abutted against one of the two adjacent rotor blades, so that the rotor blades can be shifted to rotate;

in a reverse working state, the rotating rod rotates along the reverse direction, the swinging end is abutted against the other one of the two adjacent rotor blades, the second swinging section is stressed to overcome the gravity to deflect, and the swinging end bypasses the rotor blade.

According to at least one embodiment of the present application, the above rotor blade toggle structure further includes:

the hinge shaft is arranged at one end of the first swinging section, which is back to the hinge end, the axis of the hinge shaft deviates from the vertical direction, and the hinge shaft is hinged with one end of the second swinging section, which is back to the swinging end;

the rotor blade toggle structure is as follows:

when the rotor blade is in a positive working state, under the action of gravity, one end of the second swing section, which is back to the swing end, abuts against one end of the first swing section, which is back to the hinge end, so that the rotor blade can be stirred to rotate;

in the reverse working state, the second swing section is stressed to overcome the gravity and deflect around the axis of the hinge shaft, so that the swing end can bypass the rotor blade.

According to at least one embodiment of the present application, in the above rotor blade raking structure, the axis of the hinge shaft is deviated from the vertical direction by 30 ° to 60 °.

According to at least one embodiment of the present application, in the above-mentioned rotor blade shifting structure, the rotating rod has a guiding channel therein; one end of the guide channel extends to one end of the swinging rod, and an opening is formed on the outer wall of the rotating rod;

the outer wall of the rotating rod is provided with a guide groove; the guide groove extends along the axial direction and is communicated with the other end of the guide channel;

rotor blade toggle structure still includes:

the displacement ring is sleeved on the rotating rod and can move along the axial direction, and the inner ring surface of the displacement ring is provided with a guide bulge; the guide protrusion extends into the guide groove; one end of the connecting wire back to the swinging rod penetrates through the guide channel from the opening and extends into the guide groove to be connected with the guide protrusion.

According to at least one embodiment of the present application, in the above-mentioned rotor blade striking structure, one end of the rotating rod facing away from the swinging rod has a positioning protrusion;

the outer wall of the displacement ring is provided with a connecting bulge;

rotor blade toggle structure still includes:

the positioning cylinder is sleeved on the connecting protrusion;

the rotor blade toggle structure is as follows:

when the device is in a working state, the displacement ring moves back to the swinging rod to tighten the connecting wire to the outer side of the casing, so that the connecting protrusion is close to the positioning protrusion; the positioning barrel slides on the connecting bulge to be sleeved on the positioning bulge;

when the connecting rod is in a non-working state, the positioning cylinder slides on the connecting protrusion and is separated from the connecting protrusion, so that the displacement ring can move towards the direction of the swinging rod, and the connecting wire is loosened.

According to at least one embodiment of the present application, the above rotor blade toggle structure further includes:

the spring is sleeved on the rotating rod and is positioned between the positioning protrusion and the displacement ring;

the rotor blade toggle structure is as follows:

when the device is in a working state, the spring is positioned and protruded and is pressed by the displacement ring;

when the swing rod is in a non-working state, the spring pushes the displacement ring to move towards the direction of the swing rod by means of the elastic force of the spring.

According to at least one embodiment of the present application, the above rotor blade toggle structure further includes:

a support cylinder;

the bearing is sleeved on the rotating rod and arranged in the supporting cylinder;

the rotor blade toggle structure is as follows:

when the support barrel works, the support barrel is supported on the casing;

when the support barrel is not in the working state, the support barrel can be separated from the casing.

According to at least one embodiment of the present application, in the above-mentioned rotor blade shifting structure, the through hole is a hole detector hole.

According to at least one embodiment of the present application, in the above-mentioned rotor blade shifting structure, the casing has a hole detector seat thereon; the hole detector seat is provided with a through hole communicated with the hole detector hole, so that the swinging rod and one end of the rotating rod connected with the swinging rod can pass through the through hole;

the rotor blade toggle structure is as follows:

when the device is in a working state, the supporting cylinder is clamped on the hole detector seat;

and when the device is in a non-working state, the supporting cylinder can be separated from the hole detector seat.

Drawings

FIG. 1 is a schematic view of a rotor blade toggle structure provided by an embodiment of the present application in a non-operational state;

FIG. 2 is a schematic view of a rotor blade shift structure provided by an embodiment of the present application in an intermediate position between a non-operational state and an operational state;

FIG. 3 is a schematic view of a rotor blade toggle structure provided by an embodiment of the present application in an operating state;

FIG. 4 is a partial schematic view of the toggle structure of the rotor blade of FIG. 3 in the A direction of the forward operating state;

FIG. 5 is a schematic view of the portion of FIG. 4 taken in the direction B;

FIG. 6 is a partial schematic view of the rotor blade shift structure of FIG. 3 in the reverse operating position in the direction A;

FIG. 7 is a schematic view of the portion of FIG. 6 taken along line C;

wherein:

1-rotating rod; 2-a hinge axis; 3-connecting filaments; 4-a casing; 5-stator blades; 6-a first swing section; 7-a second swing section; 8-displacement ring; 9-a positioning cylinder; 10-a spring; 11-a support cylinder; 12-a bearing; 13-a bore finder seat; 14-rotor blades.

Detailed Description

In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.

In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The use of the terms "comprising" or "including" and the like in the description of the present application is intended to indicate that the element or item preceding the term covers the element or item listed after the term and its equivalents, without excluding other elements or items.

Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in this application according to the specific situation.

The present application is described in further detail below with reference to fig. 1 to 7.

A rotor blade striking structure comprising:

a rotating rod 1;

one end of the swinging rod is a hinged end, and the other end of the swinging rod is a swinging end; the hinged end is hinged with one end of the rotating rod 1;

one end of the connecting wire 3 is connected with the swinging rod, and the other end of the connecting wire extends towards the other end of the rotating rod 1;

the rotor blade toggle structure comprises:

in a working state, the swinging rod, the rotating rod 1 and one end connected with the swinging rod extend into the casing 4 from a through hole on the casing 4 and are positioned between two adjacent stator blades 5; the connecting wire 3 is tensioned towards the outer side of the casing 4 to drive the swinging rod to swing, so that the swinging end is cut into the space between two adjacent rotor blades 14; the rotation of the rotating rod 1 enables the oscillating end to abut against one of the two adjacent rotor blades 14;

in a non-working state, the connecting wire 3 is loosened, and the swinging rod swings under the action of gravity, so that the swinging end is separated from between two adjacent rotor blades 14; the swing rod and the end of the rotating rod connected with the swing rod can be pulled out of the casing 4 from the through hole on the casing 4.

For the rotor blade shifting structure disclosed in the above embodiment, as can be understood by those skilled in the art, when the rotor blades 14 and the stator blades 5 at each stage in the engine casing 4 are distributed at intervals along the axial direction, the via holes can be formed at the position of the casing 4 facing the stator blades 5, and the end of the oscillating rod, the rotating rod 1 and the oscillating rod, which is connected with the oscillating rod, extends into the casing 4 from the via hole on the casing 4, is located between two adjacent stator blades 5, the rotor blade shifting structure is set to be in a working state, the oscillating end of the oscillating rod can be cut into the space between two adjacent rotor blades 14 at the stage adjacent to the stage where the two stator blades 5 are located, and the oscillating end of the oscillating rod can be abutted to one of the two adjacent rotor blades 14 through the rotation of the rotating rod 1, so as to shift the rotor blades 14 to rotate; after the rotor blades 14 are shifted, the rotor blade shifting structure can be set to be in a non-working state, one end of the swing rod, the rotating rod and the swing rod, which are connected with each other, can be pulled out from the through holes in the casing 4 to the outside of the casing 4, and then the through holes can be blocked by the adaptive heads.

For the rotor blade shifting structure disclosed in the above embodiment, it can be understood by those skilled in the art that the rotor blade 14 in the casing 4 is shifted by extending the through hole formed in the part of the casing 4 facing the stator blade 5 into the oscillating rod inside the casing 4 and the end of the rotating rod 1 connected with the oscillating rod, and the part of the casing 4 facing the rotor blade is not required to be provided with a corresponding hole, so that the part of the casing 4 facing the rotor blade is not damaged, and the through hole formed in the part of the casing 4 facing the stator blade 5 is not required to have a large size, so that the overall performance of the casing 4 is not seriously damaged, and in addition, the rotor blade 14 can be shifted outside the casing 4, so that the efficiency and the safety are high.

In some alternative embodiments, the above rotor blade shifting structure, the oscillating rod is divided into two sections, wherein one section is a first oscillating section 6, and the other section is a second oscillating section 7; the first swing section 6 is connected with the wire 3, one end of the first swing section is a hinged end, and the other end of the first swing section is hinged with one end of the second swing section 7; the other end of the second swing section 7 is a swing end;

the working state comprises the following steps:

in a forward working state, the rotating rod 1 rotates in a forward direction, and the swinging end is abutted against one of two adjacent rotor blades 14, so that the rotor blades 14 can be stirred to rotate;

in the reverse operating state, the rotary lever 1 rotates in the reverse direction, the pivoting end abuts against the other of the two adjacent rotor blades 14, the second pivoting section 7 is forced to deflect against the force of gravity, and the pivoting end bypasses the rotor blade 14.

With respect to the rotor blade dialing structure disclosed in the above embodiments, it will be understood by those skilled in the art that the rotation of the rotating rod 1 in the forward direction may be clockwise rotation, and the rotation of the rotating rod 1 in the reverse direction may be counterclockwise rotation.

For the rotor blade shifting structure disclosed in the above embodiments, it can be further understood by those skilled in the art that, due to the limitation of the structure, the rotor blade shifting structure cannot rotate a circle of the rotor blade 14 by shifting one rotor blade 14, and in order to rotate a circle of the rotor blade 14, it is necessary to sequentially shift a plurality of rotor blades 14 in succession, when the rotor blade shifting structure is in the forward operating state, the swing end of the second swing section 7 can shift one rotor blade 14, when the rotor blade shifting structure is in the reverse operating state, the swing end of the second swing section 7 can bypass the rotor blade 14 adjacent to the shifted rotor blade 14, after bypassing the rotor blade 14, the swing end can cut into between the rotor blade 14 and another rotor blade adjacent to the rotor blade 14 by gravity, and then the swing end is in the forward operating state to shift the rotor blade 14, repeating the above process can shift a plurality of rotor blades, and finally the rotor blade 14 can rotate for one circle.

In some optional embodiments, the above rotor blade toggle structure further comprises:

the hinge shaft 2 is arranged at one end of the first swinging section 6, which is back to the hinge end, the axis of the hinge shaft deviates from the vertical direction, and the hinge shaft is hinged with one end of the second swinging section 7, which is back to the swinging end;

the rotor blade toggle structure is as follows:

in a forward working state, under the action of gravity, one end of the second swing section 7, which is opposite to the swing end, abuts against one end of the first swing section 6, which is opposite to the hinged end, so that the rotor blade 14 can be stirred to rotate, and a specific form can be seen in fig. 4-5;

in the reverse working state, the second swing section 7 is stressed to deflect around the axis of the hinge shaft 2 against gravity, so that the swing end can bypass the rotor blade 14, and the forward working state can be restored by gravity after bypassing the rotor blade 14, as can be seen in specific forms in fig. 6-7.

In some alternative embodiments, the rotor blade toggling structure described above, the axis of the hinge shaft 2 is offset from the vertical by 30 ° to 60 °.

In some alternative embodiments, in the above-mentioned rotor blade shifting structure, the rotating rod 1 has a guiding channel therein; one end of the guide channel extends to one end of the swinging rod 1, and an opening is formed on the outer wall of the rotating rod 1;

the outer wall of the rotating rod 1 is provided with a guide groove; the guide groove extends along the axial direction and is communicated with the other end of the guide channel;

rotor blade toggle structure still includes:

the displacement ring 8 is sleeved on the rotating rod 1 and can move along the axial direction, and the inner ring surface of the displacement ring is provided with a guide bulge; the guide protrusion extends into the guide groove; one end of the connecting wire 3 back to the swinging rod penetrates through the guide channel from the opening and extends into the guide groove to be connected with the guide protrusion.

In some alternative embodiments, in the above-mentioned rotor blade striking structure, the end of the rotating rod 1 facing away from the swinging rod has a positioning protrusion;

the outer wall of the displacement ring 8 is provided with a connecting bulge;

rotor blade toggle structure still includes:

a positioning cylinder 9 sleeved on the connecting protrusion;

the rotor blade toggle structure is as follows:

in the working state, the displacement ring 8 moves back to the swinging rod to tighten the connecting wire 3 towards the outer side of the casing 4, so that the connecting protrusion is close to the positioning protrusion; the positioning barrel 9 slides on the connecting bulge to be sleeved on the positioning bulge, so that the position of the displacement ring 8 is fixed, and the rotor blade shifting structure is kept in a working state;

when the device is in a non-working state, the positioning cylinder 9 slides on the connecting protrusion, is separated from the connecting protrusion, and releases the fixation of the displacement ring 8, so that the displacement ring 8 can move towards the direction of the swinging rod to release the connecting wire 3.

In some optional embodiments, the above rotor blade toggle structure further comprises:

the spring 10 is sleeved on the rotating rod 1 and is positioned between the positioning protrusion and the displacement ring 8;

the rotor blade toggle structure is as follows:

in the working state, the spring 10 is positioned and protruded and is pressed by the displacement ring 8;

in the non-working state, the spring 10 pushes the displacement ring 8 to move towards the direction of the swing rod by means of the elastic force of the spring so as to release the connecting wire 3.

In some optional embodiments, the above rotor blade toggle structure further comprises:

a support cylinder 11;

the bearing 12 is sleeved on the rotating rod 1 and arranged in the supporting cylinder 11;

the rotor blade toggle structure is as follows:

in the working state, the supporting cylinder 11 is supported on the casing 4;

in the inoperative state, the support cylinder 11 can be detached from the casing 4.

In some alternative embodiments, in the above-mentioned rotor blade shifting structure, the through hole is a hole finder hole.

For the rotor blade toggle structure disclosed in the above embodiment, it can be understood by those skilled in the art that the casing 4 itself has a hole detector hole as a via hole, and it is not necessary to provide a corresponding hole on the casing 4 for the swing rod, the rotating rod 1 and the end connected to the swing rod to pass through.

In some alternative embodiments, in the above-mentioned rotor blade shifting structure, the casing 4 has a hole detector base 13; the hole detector base 13 is provided with a through hole communicated with the hole detector hole so that the swinging rod and one end of the rotating rod 1 connected with the swinging rod can pass through the through hole;

the rotor blade toggle structure is as follows:

when the device is in a working state, the support barrel 11 is clamped on the hole detector base 13, the top end of the hole detector base 13 can be designed to be a polygonal structure, and the lower end of the support barrel 11 is sleeved on the polygonal structure, so that the support barrel 11 is prevented from rotating;

in the non-operating state, the support cylinder 11 can be separated from the bore finder seat 13.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.