Adjustable crank arm based on high-voltage isolation switch operating mechanism

Abstract

The utility model relates to the field of power equipment, and discloses an adjustable crank arm based on a high-voltage isolating switch operating mechanism, which comprises a crank arm body, a fixing sleeve, an adjusting disc, a spring, a fixing screw and a locking nut, one end of the fixing sleeve is provided with a limiting jack, and the other end of the fixing sleeve is provided with a first end face gear ring; a second end face gear ring meshed with the first end face gear ring is arranged on one side of the adjusting disc, a connecting column is arranged on the other side of the adjusting disc, and a center hole is formed in the connecting column. The spring is arranged between the first end face gear ring and the second end face gear ring; the fixing screw penetrates through a center hole of the connecting column and the spring and then is in threaded connection with the fixing sleeve. The crank arm body is provided with a mounting hole matched with the connecting column, and the crank arm body is in threaded connection with the connecting column through a locking nut and is fixed to the adjusting disc. The angle of the crank arm can be freely adjusted, and the mounting structure of the crank arm is stable and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electric power equipment, especially to a adjustable crank based on high voltage isolating switch operating mechanism. BACKGROUND

[0002] High voltage isolating switch is the device that isolates, connects and converts the contact between live body and electrical appliance in the state of no load in electric circuit in electric power distribution system. Therefore, the correctness and stability of high voltage isolating switch operation are the guarantee of safe operation of electric power distribution system.

[0003] The existing high voltage isolating switch is connected with the main shaft of high voltage isolating switch and operating mechanism through crank, and the action of operating mechanism drives the main shaft to realize the action of high voltage isolating switch through the conversion of crank. The current crank is a crank plate welded on the crank pipe of round pipe type, and the crank pipe is connected with the main shaft through taper pin, so the relative position of crank and main shaft is not adjustable, if adjustment is needed, the pin hole must be matched additionally, which not only brings great inconvenience to assembly and adjustment, but also affects the mechanical strength of main shaft, and the main shaft is prone to break at the pin hole. In addition, the length of crank is fixed, if a longer crank is needed, a new crank must be matched. Therefore, the existing crank cannot meet the use requirement.

[0004] Therefore, the present application provides an adjustable crank that can adjust the angle and length of crank to improve the universality of existing crank. SUMMARY

[0005] The utility model aims at solving the technical problem existing in prior art. For this purpose, the utility model provides an adjustable crank based on high voltage isolating switch operating mechanism that can adjust the angle and length of crank to improve the universality of existing crank.

[0006] The technical scheme adopted by the utility model to solve its technical problem is:

[0007] An adjustable crank based on high voltage isolating switch operating mechanism is provided, which comprises a crank body, a fixing sleeve, an adjusting disc, a spring, a fixing screw and a locking nut, wherein: one end of the fixing sleeve is provided with a limiting hole, and the other end is provided with a first end face tooth ring; one side of the adjusting disc is provided with a second end face tooth ring meshing with the first end face tooth ring, and the other side of the adjusting disc is provided with a connecting column, and the connecting column is provided with a center hole; the spring is arranged between the first end face tooth ring and the second end face tooth ring; the fixing screw is screwed with the fixing sleeve after passing through the center hole of the connecting column and the spring; the crank body is provided with a mounting hole matched with the connecting column, and the mounting hole is screwed and fixed with the connecting column on the adjusting disc through the locking nut.

[0008] In some alternative embodiments, the fixing sleeve and the adjusting disc are respectively provided with positioning bosses in the first end face tooth ring and the second end face tooth ring, and the two ends of the spring are sleeved on the positioning bosses.

[0009] In some alternative embodiments, the limiting hole is provided with a limiting plane, and the fixing sleeve is screwed with a plurality of fixing screws at the limiting plane.

[0010] In some alternative embodiments, the connecting column is provided with a positioning plane on both sides, which is used for limiting the angle of the crank arm body after installation.

[0011] In some alternative embodiments, the mounting hole on the crank arm body is a long strip type waist round hole, the waist round hole is provided with a plurality of positioning holes which are arranged at equal intervals along the length direction of the waist round hole, and the locking nut and the crank arm body are further provided with a backing plate, the bottom of the backing plate is provided with a plurality of positioning columns which are inserted into the positioning holes.

[0012] In some alternative embodiments, the bottom of the backing plate is further welded with a small spring at both ends.

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] 1. The crank arm body is fixedly installed on the adjusting disc, the adjusting disc is fixed on the fixing sleeve through the locking nut, the adjusting disc and the fixing sleeve are engaged through the end face tooth ring to ensure the relative position, and the reliability of the crank arm installation structure is ensured.

[0015] 2. The mounting hole on the crank arm body is a long strip type waist round hole, the bottom of the backing plate is provided with a plurality of positioning columns which are inserted into the positioning holes on both sides to limit, the length of the crank arm body can be adjusted by loosening the locking nut to adjust the installation position of the crank arm body, and the crank arm body can be fixed by tightening the locking nut after adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor, wherein:

[0017] Figure 1 is the installation structure sectional view of the adjustable crank arm provided by the utility model;

[0018] Figure 2 is Figure 1 The installation plan view of the toggle body on the adjusting disc is provided.

[0019] Figure 3 is Figure 1 The top view of the fixing sleeve is provided.

[0020] In the drawings, the components represented by each reference numeral are listed as follows:

[0021] 1 - toggle body, 1.1 - mounting hole, 1.2 - positioning socket, 2 - fixing sleeve, 2.1 - limiting socket, 2.1.1 - limiting plane, 2.2 - first end face tooth ring, 3 - adjusting disc, 3.1 - second end face tooth ring, 3.2 - connecting column, 3.2.1 - positioning plane, 4 - spring, 5 - fixing screw, 6 - locking nut, 7 - backing plate, 7.1 - positioning column, 7.2 - small spring, A - positioning boss. DETAILED DESCRIPTION

[0022] It should be understood that the specific embodiments described herein are merely exemplary and are not intended to limit the present application.

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0025] In addition, the description of the terms "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implying the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. The terms "mounting", "connecting" and "connecting" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0027] Embodiment one

[0028] As shown in the accompanying Figure 1 , the present embodiment provides an adjustable crank based on high-voltage isolating switch operating mechanism, which comprises a crank body 1, a fixing sleeve 2, an adjusting disc 3, a spring 4, a fixing screw 5 and a locking nut 6, wherein:

[0029] One end of the fixing sleeve 2 is provided with a limiting hole 2.1, and the specific limiting method is as follows: Figure 1 and the accompanying Figure 3 As shown in the accompanying , a limiting plane 2.1.1 is arranged in the limiting hole 2.1, and the limiting hole is used as the mounting hole of the adjustable crank. When mounting, one end of the main shaft is inserted into the limiting hole, and a plurality of tight screws are screwed through the fixing sleeve to tighten the main shaft at the limiting plane of the fixing sleeve.

[0030] Figure 1 As shown in the accompanying , the other end of the fixing sleeve 2 is provided with a first end face tooth ring 2.2, and one side of the adjusting disc 3 is provided with a second end face tooth ring 3.1 engaged with the first end face tooth ring 2.2. The second end face tooth ring 3.1 of the adjusting disc 3 is engaged with the first end face tooth ring 2.2 of the fixing sleeve 2, and is fixed by the fixing screw 5. The spring 4 is arranged between the first end face tooth ring 2.2 and the second end face tooth ring 3.1. When the adjusting disc is locked on the fixing sleeve by the fixing screw, the spring is in a compressed state. When the fixing screw is loosened, the adjusting disc can rotate freely.

[0031] Preferably, the fixed sleeve 2 and the adjusting disc 3 are respectively provided with positioning bosses A in the first end face tooth ring 2.2 and the second end face tooth ring 3.1, and the two ends of the spring 4 are sleeved on the positioning bosses A. This design can improve the positioning accuracy of the spring and increase the structural strength of the fixed sleeve and the adjusting disc.

[0032] Please refer to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 The other side of the adjusting disc 3 is provided with a connecting column 3.2 for mounting the toggle body 1, and the connecting column 3.2 is provided with a center hole, and the fixed screw 5 is screwed with the fixed sleeve 2 after passing through the center hole of the connecting column 3.2 and the spring 4.

[0033] The toggle body 1 is provided with a mounting hole 1.1 matched with the connecting column 3.2, which is screwed and fixed on the adjusting disc 3 through the locking nut 6 and the connecting column 3.2. Preferably, the connecting column 3.2 is provided with positioning planes 3.2.1 on both sides to prevent the angle of the toggle body 1 from being limited after installation.

[0034] The toggle body is fixedly installed on the adjusting disc, the adjusting disc is fixed on the fixed sleeve through the locking nut, the relative position of the adjusting disc and the fixed sleeve is ensured through the end face tooth ring, and the reliability of the installation structure of the toggle is ensured. When the angle of the toggle needs to be adjusted, the adjusting disc can be rotated by loosening the fixed screw, and the angle adjustment of the toggle is completed by locking the fixed screw. Therefore, the embodiment realizes the free adjustment of the angle of the toggle, the adjustment operation is simple, and the installation structure of the toggle has high reliability.

[0035] Embodiment two

[0036] Based on the embodiment one, as shown in the accompanying drawings Figure 1 and the accompanying drawings Figure 2 The mounting hole 1.1 on the toggle body 1 is designed as a long strip type waist round hole, the two sides of the waist round hole are provided with a plurality of positioning insertion holes 1.2 arranged at equal intervals along the length direction of the waist round hole, and the locking nut 6 and the toggle body 1 are further provided with a backing plate 7, and the bottom of the backing plate 7 is provided with a plurality of positioning columns 7.1 inserted into the positioning insertion holes 1.2. This design can limit the toggle body by inserting the plurality of positioning columns at the bottom of the backing plate into the positioning insertion holes on both sides, adjust the installation position of the toggle body by loosening the locking nut to realize the length adjustment of the toggle body, and fix the toggle body by tightening the locking nut after the adjustment is completed.

[0037] Preferably, the bottom of the backing plate 7 is further welded with small springs 7.2 at both ends located in the waist round hole. After loosening the locking nut, the backing plate rises under the elastic force of the springs, the positioning columns are separated from the positioning insertion holes, and the position of the toggle body is adjusted.

[0038] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, are all included in the patent protection scope of the present application.

Claims

1. An adjustable crank arm based on a high voltage disconnector operating mechanism, characterized by: The elbow body, the fixed sleeve, the adjusting disc, the spring, the fixed screw and the locking nut are included, wherein: One end of the fixed sleeve is provided with a limiting insertion hole, and the other end is provided with a first end face tooth ring; One side of the adjusting disc is provided with a second end face tooth ring engaged with the first end face tooth ring, and the other side of the adjusting disc is provided with a connecting column, and the connecting column is provided with a center hole; The spring is arranged between the first end face tooth ring and the second end face tooth ring; The fixed screw is screwed with the fixed sleeve through the center hole of the connecting column and the spring; The elbow body is provided with a mounting hole matched with the connecting column, and is screwed with the connecting column through the locking nut and fixed on the adjusting disc.

2. The adjustable cranked arm of claim 1, wherein: The fixed sleeve and the adjusting disc are respectively provided with a positioning boss in the first end face tooth ring and the second end face tooth ring, and the two ends of the spring are sleeved on the positioning boss.

3. The adjustable cranked arm of claim 1, wherein: The limiting insertion hole is provided with a limiting plane, and the fixed sleeve is screwed with a plurality of fixed screws at the limiting plane.

4. The adjustable cranked arm of claim 1, wherein: The connecting column is provided with a positioning plane on both sides, which is used for preventing the angle of the elbow body after installation.

5. The adjustable cranked arm of any one of claims 1 to 4, wherein: The mounting hole of the elbow body is a long strip type waist round hole, the two sides of the waist round hole are provided with a plurality of positioning insertion holes arranged at equal intervals along the length direction of the waist round hole, and the locking nut and the elbow body are further provided with a backing plate, and the bottom of the backing plate is provided with a plurality of positioning columns inserted with the positioning insertion holes.

6. The adjustable cranked arm of claim 5, wherein: The bottom of the backing plate is further welded with a small spring at the position in the waist round hole.

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