CN213259186U

CN213259186U - Torque wrench for narrow space valve operation

Info

Publication number: CN213259186U
Application number: CN202021833872.3U
Authority: CN
Inventors: 孙建省; 苏彤; 孙乐场; 温和; 王瀚; 张立强; 孙松磊; 腾鹏
Original assignee: China Resources Wind Power Zibo Co ltd
Current assignee: China Resources Wind Power Zibo Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-05-25
Anticipated expiration: 2030-08-21

Abstract

The utility model discloses a torque wrench for narrow space valve operation, the upper portion of sleeve shell is dome structure and inside cavity, the passageway that runs through dome structure completely is seted up at the top of sleeve shell, sleeve shell inboard is provided with the backup pad, be the ring structure of backup pad, the outer disc edge department of backup pad is connected with the drum structure of perpendicular to backup pad, the both ends of drum structure are provided with two screw holes respectively, two screw hole inboards are provided with two locking bolt respectively and are connected fixedly with sleeve shell through two locking bolt, the backup pad inboard is provided with interior hexagonal sleeve, interior hexagonal sleeve's up end edge has seted up annular groove, annular groove sets up the round hole inboard that sets up in the middle part of the backup pad, the utility model discloses an adjustable spanner angle is convenient for adjust application of force angle, the accessible rotating connecting rod accomplishes the conversion of direction of rotation and comes loose, The valve switch is tightened, the length of the wrench can be assembled, and the wrench has the function of being suitable for various occasions.

Description

Torque wrench for narrow space valve operation

Technical Field

The utility model relates to a fan technical field, specific torque wrench for operation of narrow space valve that says so.

Background

Partial fan hydrovalve is because the space of locating is less in the operation process, the degree of difficulty is great when single one-hand elasticity relief valve operates, if operating personnel's palm is slightly big just can't carry out the pressure release operation, can only select the less personnel of palm to accomplish this operation work, and it is long when using, the going on of this work has seriously influenced, the position at partial fan hydrovalve place stretches into the hand completely, manual unable operation completely, its position is narrow simultaneously, the rotatable space undersize of instruments such as spanner, can't accomplish the pine, tight operation, this problem is a long-term big difficult problem that puzzles each scene all the time.

Therefore, the torque wrench which can adjust the wrench angle to adjust the force application angle conveniently is designed to overcome the defects of the technology, the valve switch can be loosened and tightened by rotating the connecting rod to complete the conversion of the rotating direction, the length of the wrench can be assembled and the torque wrench is suitable for various occasions, and the problem to be solved by the inventor is solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a torque wrench for operation of narrow space valve can realize adjustable spanner angle and be convenient for adjust application of force angle, and the conversion that the direction of rotation was accomplished to the rotatory connecting rod of accessible comes the pine, tight valve switch, can assemble the function that spanner length is applicable to various occasions.

The utility model provides a technical scheme that its technical problem adopted is: a torque wrench for narrow space valve operation comprises a rotating handle, a hexagonal pin, a wrench, a locking bolt, a sleeve shell, a driving gear disc, a channel, a driven gear disc, an inner hexagonal sleeve, a thrust bearing, a supporting plate, a connecting nut and a hexagonal bolt;

the upper part of the sleeve shell is of a dome structure and is hollow, a channel which completely penetrates through the dome structure is formed in the top of the sleeve shell, a supporting plate is arranged on the inner side of the sleeve shell and is of a circular ring structure, a cylindrical structure which is perpendicular to the supporting plate is connected to the outer circular edge of the supporting plate, two threaded holes are formed in two ends of the cylindrical structure respectively, two locking bolts are arranged on the inner sides of the two threaded holes respectively and are fixedly connected with the sleeve shell through the two locking bolts, an inner hexagonal sleeve is arranged on the inner side of the supporting plate, an annular groove is formed in the edge of the upper end face of the inner hexagonal sleeve and is arranged on the inner side of a circular hole formed in the middle of the supporting plate, a driven gear disc is arranged at the upper end of the inner hexagonal sleeve, and the center of the driven gear disc is fixedly, the improved wrench is characterized in that a thrust bearing is arranged between the driven gear disc and the supporting plate, a wrench is arranged on the inner side of a channel formed in the sleeve shell, a driving gear disc is connected to the lower end of the wrench, the driving gear disc is meshed with the driven gear disc, a hexagonal pin is arranged at the upper end of the wrench, and a rotating handle is arranged on the outer side of the hexagonal pin.

Further, the drive gear plate may change angle along the channel inside the sleeve housing. The joint of the driving gear disc and the wrench is provided with a dome structure, and the radian of the dome structure is smaller than that of the inner wall of the sleeve shell.

Further, the driving gear disc is always meshed with the driven gear disc on the inner side of the sleeve shell.

Further, the diameter of the wrench is smaller than the width of the channel, and the difference between the diameter of the wrench and the width of the channel is not larger than 1 mm.

Further, the cross section that is provided with circumference evenly distributed's tooth structure and tooth structure on the initiative toothed disc is trapezoidal, the cross section that is provided with circumference evenly distributed's tooth structure and tooth structure on the driven toothed disc is trapezoidal.

The utility model has the advantages that:

1. the utility model discloses an adopt a pair of toothed disc intermeshing that can alternate meshing angle, it provides spanner pivoted passageway to open on the shell, drive toothed disc turned angle through the spanner, the perpendicular effort relation between spanner and the passageway of deuterogamying, can move the spanner and carry out the operation, also rotatable handle carries out the operation, operating method is diversified, but realized adjustable spanner angle adjustment application of force angle of being convenient for, the conversion that accessible rotating connecting rod accomplished the direction of rotation comes the pine, tight valve switch, can assemble the function that spanner length is applicable to various occasions.

Drawings

Fig. 1 is a structural diagram of the present invention.

Fig. 2 is a sectional view of the present invention.

Fig. 3 is a partial cross-sectional enlarged view of the present invention.

Description of reference numerals: 1-rotating the handle; 2-hexagonal pins; 3-a wrench; 4-locking the bolt; 5-a sleeve housing; 6-driving gear plate; 7-a channel; 8-driven gear plate; 9-an inner hexagonal sleeve; 10-a thrust bearing; 11-a support plate; 12-a coupling nut; 13-hexagonal bolt.

Detailed Description

The invention will be further described with reference to specific examples, which are intended to be illustrative only and not to limit the scope of the invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents also fall within the scope of the appended claims.

Referring to fig. 1 to 3, the structure diagram, the cross-sectional view, and the enlarged partial cross-sectional view of the present invention are shown, and a torque wrench 3 for narrow space valve operation includes a rotating handle 1, a hexagonal pin 2, a wrench 3, a locking bolt 4, a socket housing 5, a driving gear disc 6, a channel 7, a driven gear disc 8, an inner hexagonal socket 9, a thrust bearing 10, a support plate 11, a connecting nut 12, and a hexagonal bolt 13;

the upper portion of sleeve shell 5 is dome structure and inside cavity, and sleeve shell 5's top is seted up the passageway 7 that runs through dome structure completely, and the both ends of passageway 7 extend to on the perpendicular drum periphery from sleeve shell 5's dome structure, and passageway 7 length on the periphery is greater than the excircle diameter of spanner 3 for spanner 3 can not place because the length of passageway 7 is not enough and can't the level.

The inner side of the sleeve shell 5 is provided with a support plate 11, the support plate 11 is of a circular ring structure, the middle part of the support plate 11 is provided with a circular hole, the outer circumferential edge of the support plate 11 is connected with a cylindrical structure vertical to the support plate 11, two ends of the cylindrical structure are respectively provided with two threaded holes, the sleeve shell 5 is provided with two through holes at positions corresponding to the two threaded holes, the inner sides of the two threaded holes are respectively provided with two locking bolts 4 and are connected and fixed with the sleeve shell 5 through the two locking bolts 4, the outer circumferential edge of the support plate 11 is in clearance fit with the inner wall of the sleeve shell 5, the clearance size is not more than 0.5mm, the vertical cylindrical structure at the edge of the support plate 11 is used for providing a fixed carrier for the locking bolts 4, and simultaneously, the support plate 11 can not rotate around the axis of the locking bolts 4 only under the, because the clearance between the supporting plate 11 and the sleeve housing 5 is small, and the cylindrical structure is added, the existing clearance between the outer circumferential edge of the supporting plate 11 and the inner wall of the sleeve housing 5 cannot meet the space requirement for the rotation of the supporting plate 11.

The inner side of the supporting plate 11 is provided with an inner hexagonal sleeve 9, the upper end of the inner hexagonal sleeve 9 is provided with a hexagonal through hole, the edge of the upper end face of the inner hexagonal sleeve 9 is provided with an annular groove, the upper end of the annular groove is flush with the upper end face of the inner hexagonal sleeve 9, the annular groove is arranged at the inner side of a round hole arranged at the middle part of the supporting plate 11, the upper end of the inner hexagonal sleeve 9 is provided with a driven gear disc 8, the bottom of the driven gear disc 8 is of a plane structure and can be perfectly matched with the upper end face of the inner hexagonal sleeve 9, the driven gear disc 8 is provided with a tooth structure with uniformly distributed circumference, the cross section of the tooth structure is trapezoidal, the teeth can perfectly transmit kinetic energy under any meshing angle, the center of the driven gear disc 8 is provided with a hexagonal through hole, the center of the driven gear disc 8 is fixedly connected with the, the upper end of the hexagonal bolt 13 is a circular bolt cap, and the tail end of the hexagonal bolt is of a cylindrical structure with external threads, so that the hexagonal bolt 13 is prevented from loosening and falling off while the inner hexagonal sleeve 9 and the driven gear disc 8 are linked through the hexagonal bolt 13.

A thrust bearing 10 is arranged between the driven gear disc and the support plate 11, the depth of the annular groove is required to meet the requirement that the inner side of the annular groove can be simultaneously provided with the lower support plate 11 and the thrust bearing 10, in order to prevent the thrust bearing 10 from loosening due to incompact fit, the thrust bearing 10 and the driven gear disc 8 are in transition fit, a wrench 3 is arranged on the inner side of a channel 7 arranged on the sleeve shell 5, the lower end of the wrench 3 is connected with a driving gear disc 6, the driving gear disc 6 is meshed with the driven gear disc 8, the driving gear disc 6 can change the angle along the channel 7 on the inner side of the sleeve shell 5, a dome structure is arranged at the joint of the driving gear disc 6 and the wrench 3, the radian of the dome structure is smaller than that of the inner wall of the sleeve shell 5, the dome structure on the driving gear disc 6 can ensure that the action of the driving gear, can also guarantee that the spanner 3 can not cause collision damage to the inner wall of the sleeve shell 5 and the driving gear disc 6 when the spanner is translated and rotated, the driving gear disc 6 is always meshed with the driven gear disc 8 on the inner side of the sleeve shell 5, the upper end of the spanner 3 is provided with a hexagonal pin 2, the outer side of the hexagonal pin 2 is provided with a rotating handle 1, the rotating handle 1 and the spanner 3 are in a plug-in combined connection mode, the rotating handle 1 comprises two long rods which are mutually crossed, wherein the vertical rods are matched with the spanner 3 in a plug-in mode, the transverse rods are perpendicular to the vertical rods, the length of the vertical rods is adjusted by replacing the rotating handles 1 with different specifications, different operation environments can be met, the rotating handles 1 with different lengths can be selected, the use is rapid and convenient, meanwhile, the rotating handles 1 with different specifications can also be equipped with the transverse rods with different lengths, and the valve, the torque can be increased by using a rotary handle 1 with a longer crossbar.

The diameters of the wrench 3 and the wrench 3 are smaller than the width of the channel 7, the difference value between the diameters of the wrench 3 and the channel 7 is not larger than 1mm, the distance between the wrench 3 and the channel 7 cannot be too large or too small, when the distance is too small, the movement of the wrench 3 in the channel 7 is limited and can not smoothly rotate, when a force which is vertical to the axis of the wrench 3 and parallel to the horizontal plane is applied to the wrench 3 when the distance is too large, the bearing points on the wrench 3 can completely fall on the contact point of the driving gear disc 6 and the driven gear disc 8 because the distance between the wrench 3 and the channel 7 is too large, the bearing points are calculated and tested to obtain a conclusion, when the distance is less than 1mm, the smooth overturning of the wrench 3 can be ensured, and the bearing points can also be ensured to be simultaneously distributed on the contact point of the driving gear disc 6 and the driven gear disc 8 and the contact point of the wrench 3 and the inner, the stress can be reduced for two gear plates, and the service life is prolonged.

The inner hexagonal socket 9 may be replaced by a polygonal socket such as an inner octagonal socket.

The utility model discloses the theory of operation:

when the utility model works, according to the position of the hydraulic valve switch and the surrounding environment, find the relative spacious position, hand wrench 3 will stretch the utility model into and close to the hydraulic valve switch, then manually sleeve the inner hexagonal sleeve 9 inside the sleeve shell 5 outside the fan hydraulic valve switch, most hydraulic valves are all the adopted hexagonal valve switches, after the sleeve is completed, control wrench 3, adjust the meshing state of the driving gear plate 6 and the driven gear plate 8 at the end of wrench 3, after the firm meshing, judge according to the remaining operable space around wrench 3, when the space is enough to satisfy the front and back rotation of wrench 3 not less than 60 degrees, can translate wrench 3 adjusted the angular position, when the space condition is not satisfied, change the operation of wrenching wrench 3 into knob rotating handle 1, rotating handle 1 can pass the circumferential force of wrench 3 through driving gear plate 6 and driven gear plate 8, the tangential force of the hydraulic valve switch is converted, and the hydraulic valve switch is opened or locked.

The utility model discloses an adopt a pair of toothed disc intermeshing that can alternate meshing angle, it provides 3 pivoted passageways 7 of spanner to open on the shell, drive toothed disc turned angle through spanner 3, the perpendicular effort relation between spanner 3 and the passageway 7 of deuterogamying, can move spanner 3 and carry out the operation, also the rotatable handle carries out the operation, the operation is diversified, adjustable spanner 3 angle is convenient for adjust application of force angle has been realized, the conversion that the direction of rotation was accomplished to the rotatory connecting rod of accessible comes the pine, tight valve switch, can assemble the function that 3 length of spanner is applicable to various occasions.

Claims

1. A torque wrench for narrow space valve operation, comprising: the six-edge bolt locking mechanism comprises a rotating handle, a six-edge pin, a wrench, a locking bolt, a sleeve shell, a driving gear disc, a channel, a driven gear disc, an inner hexagonal sleeve, a thrust bearing, a supporting plate, a connecting nut and a six-edge bolt;

2. A torque wrench as claimed in claim 1, for narrow space valve operation, wherein: the angle of the driving gear disc can be changed along the channel at the inner side of the sleeve shell, a dome structure is arranged at the joint of the driving gear disc and the wrench, and the radian of the dome structure is smaller than that of the inner wall of the sleeve shell.

3. A torque wrench as claimed in claim 1, for narrow space valve operation, wherein: the driving gear disc is always meshed with the driven gear disc on the inner side of the sleeve shell.

4. A torque wrench as claimed in claim 1, for narrow space valve operation, wherein: the diameter of the wrench is smaller than the width of the channel, and the difference between the diameter of the wrench and the width of the channel is not more than 1 mm.

5. A torque wrench as claimed in claim 1, for narrow space valve operation, wherein: the driving gear disc is provided with a gear structure with uniformly distributed circumferences, the cross section of the gear structure is trapezoidal, and the driven gear disc is provided with a gear structure with uniformly distributed circumferences, and the cross section of the gear structure is trapezoidal.