CN210232822U

CN210232822U - Outer hexagon bolt dismounting device

Info

Publication number: CN210232822U
Application number: CN201921291234.0U
Authority: CN
Inventors: Jian Gao; 高建; Guixi Wang; 王贵喜; Yubiao Bai; 白玉标
Original assignee: Datang Shandong Electric Power Overhaul and Operation Co Ltd
Current assignee: Datang Shandong Electric Power Overhaul and Operation Co Ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-04-03
Anticipated expiration: 2029-08-09

Abstract

The utility model discloses an outer hexagon bolt dismounting device, including straight arm portion and kink, the one end of kink is the stiff end, installs on the handle of straight arm portion, and the other end is the free end, the free end is used for contacting the outer hexagon bolt that waits to dismantle, is equipped with the movable clamp plate just to the stiff end between stiff end and the free end, straight arm portion still includes the lead screw that the movable clamp plate is connected to one end, the lead screw cooperates with the first screw through-hole that the stiff end predetermines, the movable clamp plate is used for pressing from both sides the outer hexagon bolt that waits to dismantle with the free end jointly under the promotion of lead screw; through the movable clamping plate and the fixed clamping plate with adjustable intervals, the hexagonal bolt after being ground into a circle is clamped, and the contact area between the hexagonal bolt and the hexagonal bolt is increased by adopting a saw-toothed structure, so that torque can be stably applied to the hexagonal bolt, and the hexagonal bolt which is ground into a circle is unscrewed and detached.

Description

Outer hexagon bolt dismounting device

Technical Field

The application relates to the field of disassembling tools, and specifically relates to an outer hexagon bolt disassembling device.

Background

In the threaded connecting piece, a bolt is used for being matched with a nut to serve as a fastener to connect two connected parts and components with through holes, and an outer hexagon bolt is a bolt type which is commonly used and is widely applied in the field of electromechanical installation.

The bolt is often encountered in the work and is not dismantled for a long time under humid environment, and the screw thread surface oxidation corrosion is dismantled and is needed very big moment, in case the misoperation: if use open-ended spanner or monkey wrench to dismantle, the dismantlement power is too big, the relatively poor texture of bolt quality is softer, will cause the edges and corners at the hexagon head position of bolt to be damaged, and the hexagon head is by the rounding promptly, has directly reduced the area of contact of spanner with bolt hexagon head, causes the spanner can't form stable output face with the bolt, is difficult to dismantle the bolt. The inventor finds that the existing treatment method is to disassemble the pipe wrench, but for the outer hexagon head bolt with a small size, the disassembly is difficult because the clearance of the pipe wrench transmission mechanism is large and the clamping force of the pipe wrench is insufficient and the ground nut cannot be locked; in addition, a small-diameter round steel bar is adopted, the length of the round steel bar is 20-30 cm, the round steel bar is bent to about 90 degrees in the middle part to form a nearly isosceles triangle, one end of the round steel bar is welded on a damaged hexagonal head through argon arc welding, after a welding part is cooled, an antirust loosening agent is added, a wood bar is knocked and vibrated, and then the bolt is screwed out.

SUMMERY OF THE UTILITY MODEL

The utility model provides an outer hexagon bolt dismounting device is provided to the defect that prior art exists, adopts the hexagon bolt after the variable interval's movable clamp plate and the fixed splint centre gripping rounding, thereby cooperation cockscomb structure and lead screw exert pressure to the bolt increase area of contact, form stable structure of exerting oneself jointly through fixed splint and movable clamp plate to reach the purpose of dismantling the bolt after the rounding.

In order to achieve the purpose, the following technical scheme is adopted in the application:

the utility model provides an outer hex bolts dismounting device, includes straight arm portion and kink, the one end of kink is the stiff end, installs on the handle of straight arm portion, and the other end is the free end, the free end is used for contacting the outer hex bolts who treats the dismantlement, is equipped with the movable clamp plate just to the stiff end between stiff end and the free end, straight arm portion still includes the lead screw of one end connection movable clamp plate, the lead screw cooperates with the first screw thread through-hole that the stiff end predetermines, movable clamp plate is used for pressing from both sides the outer hex bolts who treats the dismantlement with the free end is common under the promotion of lead screw.

Furthermore, the bent part is shaped like Contraband, and the bent part comprises an opening for accommodating an external hexagon bolt to be detached.

Furthermore, the free end is also provided with a fixed clamping plate which is opposite to the movable clamping plate, and the fixed clamping plate and the movable clamping plate jointly form a clamping space for clamping the outer hexagon bolt to be disassembled.

Furthermore, the surface of the fixed clamping plate, which is opposite to the movable clamping plate, and the surface of the movable clamping plate, which is opposite to the fixed clamping plate, are both provided with saw-toothed structures.

Further, the handle comprises a first rod piece, and one end of the first rod piece is fixed on the fixed end.

Furthermore, the axis of the first rod piece is collinear with the axis of the first thread through hole, the first rod piece is provided with a second thread through hole along the axis, the first thread through hole and the second thread through hole are butted to jointly form a thread channel, and the screw rod is matched with the thread channel.

Furthermore, both ends of the lead screw are arranged outside the threaded passage.

Furthermore, the movable clamping plate comprises a first clamping plate and a second clamping plate, a groove is formed in each of the first clamping plate and the second clamping plate, the first clamping plate and the second clamping plate are fixed together in a mode that the grooves are opposite, and one end, close to the movable clamping plate, of the lead screw is matched with the groove.

Preferably, one end of the screw rod, which is close to the movable clamping plate, is a spherical convex block, the groove is a spherical groove matched with the spherical convex block, and the spherical convex block can freely rotate in the groove around the axis of the spherical convex block.

Further, a handle is arranged at one end of the screw rod, which is far away from the movable clamping plate; preferably, the handle comprises a second rod, the second rod is mounted on the screw, and the axis of the second rod is perpendicular to the axis of the screw.

Compared with the prior art, the application has the advantages and positive effects that:

(1) the hexagonal bolt after being ground into a circle is clamped through the movable clamping plate and the fixed clamping plate with adjustable intervals, and the contact area of the hexagonal bolt and the hexagonal bolt is increased by adopting a saw-toothed structure, so that torque can be stably applied to the hexagonal bolt, and the hexagonal bolt after being ground into a circle is unscrewed and detached;

(2) the movable clamping plate is pushed by the lead screw to form a stable clamping force output structure by matching with the fixed clamping plate, so that the rounded hexagon bolt can be stably clamped, a stable clamping structure which is difficult to form by a common wrench is achieved, the sliding caused by the difficulty in stably clamping the rounded hexagon bolt by the wrench clamping plate is avoided, and the force output efficiency in the dismounting process is improved;

(3) the movable clamping plate is opposite to the fixed clamping plate, so that clamping force can be applied from two ends of the diameter of the bolt, and higher torque output efficiency is achieved;

(4) the fixed clamping plate and the movable clamping plate are provided with the sawtooth structures, so that friction force is improved, and meanwhile, part of the sawtooth structures can be tightly attached to the surface of the round bolt, so that the contact area is increased, torque transmitted by the handle can be stably transmitted to the round bolt, and the output efficiency is maximized;

(5) the rod piece and the fixed end are both provided with a threaded through hole structure, and the rod piece and the fixed end are coaxially arranged to form a threaded channel, so that the matching area of the screw rod and the threaded structure is increased, and the threaded structure can provide more stable support for the screw rod when the screw rod exerts force;

(6) one end of the screw rod is a spherical convex block, the other end of the screw rod is a handle, the rotary and translational actions of the screw rod can be converted into translational actions through the convex block and then output to the movable clamping plate, the input force arm when the screw rod is rotated can be improved through the handle, and larger clamping force can be achieved when the same force is applied, so that the force applying efficiency of rotating and disassembling the rounding bolt is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

Fig. 1 is a schematic overall structure diagram of embodiment 1 of the present application;

FIG. 2 is a schematic view of the screw and the movable clamp plate of embodiment 1 of the present application;

fig. 3 is a schematic view of the screw and the handle according to embodiment 1 of the present application.

Wherein: 1. the bending part, 2, the movable clamping plate, 3, the straight arm part, 4, the outer hexagon bolt, 5, the first clamping plate, 6, the second clamping plate, 7, the fixing screw, 8, the lead screw, 9, the second threaded through hole, 10, the handle, 11 and the handle.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;

for convenience of description, the words "up", "down", "left" and "right" when appearing in this application are intended only to designate directions that are consistent with the up, down, left and right directions of the drawings themselves, and not to limit the structure, but merely to facilitate description of the invention and to simplify description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the application.

The terms "mounted", "connected", "fixed", and the like in the present application should be understood broadly, and for example, the terms "mounted", "connected", and "fixed" may be fixedly connected, detachably connected, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As described in the background art, in the prior art, the bolt is not disassembled for a long time in a humid environment, the thread surface is oxidized and rusted, the disassembly needs a large torque, and once the operation is not proper: if an open spanner or an adjustable spanner is used for dismounting, the dismounting force is too large, the quality of the bolt is poor, the quality is soft, edges and corners of the hexagon head of the bolt are damaged, namely the hexagon head is rounded, the contact area between the spanner and the hexagon head of the bolt is directly reduced, the spanner cannot form a stable output surface with the bolt, and the bolt is difficult to dismount; this application is exactly in order to solve above-mentioned technical problem, provides an outer hex bolts dismounting device.

Example 1

In an exemplary embodiment of the present application, as shown in fig. 1 to 3, a dismounting device for a rounded alien bolt is provided.

Including straight arm portion 3 and kink 1 of "Contraband" shape, the kink has an opening, and the open-ended both sides are stiff end and free end respectively, the stiff end install on the handle 10 of straight arm portion, be provided with a movable clamp plate 2 between stiff end and the free end, free end and movable clamp plate constitute one jointly and hold the open space of waiting to dismantle outer hex bolts 4, straight arm portion still includes the lead screw 8 of one end connection movable clamp plate, the lead screw cooperates with the first screw thread through-hole that the stiff end was predetermine, and the lead screw rotates and can drive movable clamp plate along lead screw axial motion.

Of course, it is understood that the bent portion is composed of two parallel transverse plate members and a vertical plate member perpendicular to the transverse plate members, and the vertical plate member is perpendicular to the transverse plate members and connects the two transverse plate members to form a stable Contraband-shaped structure; of course, as some possible implementation manners, the bending portion may also adopt other structural forms, but it needs to include two parallel transverse plate members, and as for the structure that connects the two transverse plate members to form the middle portion of the stable structure, the structure is not limited, and may adopt a straight plate shape as shown in the figure, an arc plate, or other structures, as long as the two parallel transverse plate members can be connected to form the stable structure, of course, the space between the two transverse plate members determines the specification of the detachable bolt, and the size of the opening thereof is configured according to the bolt to be detached;

in some embodiments, the space formed by the movable clamping plate and the free end can be used for disassembling the gear of the round outer hexagon bolt from 6mm to 36 mm.

Further, in order to improve the clamping force at the free end, a fixed clamping plate opposite to the movable clamping plate is further arranged at the free end, and the fixed clamping plate and the movable clamping plate jointly form a clamping space for clamping the outer hexagon bolt to be disassembled.

The fixed clamping plate and the movable clamping plate are both plates with at least one plane, and the opposite surfaces of the fixed clamping plate and the movable clamping plate are both planes, so that the working surfaces of the fixed clamping plate and the interactive clamping plate are parallel and corresponding to each other, and the problem of unstable clamping caused by inclination is prevented; of course, the plane described herein is a broad plane regardless of the uneven portion caused by the uneven structure provided thereon for increasing the frictional force.

The connection mode of the fixed splint and the free end can be integrated into a whole or can be installed together through the connecting piece, wherein if the fixed splint and the free end are installed and fixed through the connecting piece, the fixing effect of the fixed splint and the free end needs to be ensured, and the counter force borne by the fixed splint is directly applied to the free end as much as possible.

Furthermore, a sawtooth structure is arranged on the surface of the fixed clamping plate, which is opposite to the movable clamping plate, and a sawtooth structure is also arranged on the surface of the movable clamping plate, which is opposite to the fixed clamping plate;

the saw-toothed structure is formed by intermittently distributing grooves and protrusions, and the grooves and the protrusions in the saw-toothed structure are preferably uniformly distributed, so that the clamping effect of each part can meet the requirement; as some other implementation manners, the protrusion may be provided in a triangular prism shape, wherein one ridge line faces to the opposite surface, and the ridge is used as an acting point to realize stable clamping of the rounded hexagon socket head cap screw.

Set up the sawtooth structure on fixed splint and activity splint, when improving frictional force, partial sawtooth structure can hug closely on the face behind the bolt rounding to increase area of contact can stably transmit the moment of torsion that the handle transmitted to the bolt of rounding, make the efficiency maximize of exerting oneself.

Through the movable clamping plate and the fixed clamping plate with adjustable intervals, the hexagonal bolt after being ground into a circle is clamped, and the contact area between the hexagonal bolt and the hexagonal bolt is increased by adopting a saw-toothed structure, so that torque can be stably applied to the hexagonal bolt, and the hexagonal bolt which is ground into a circle is unscrewed and detached.

The handle be the member, one end is fixed on the fixed end, through the different positions of gripping the member, can realize different exerting oneself, according to the rounding condition and the fastening degree of bolt, suitably select to grip the position of exerting oneself, can be under the condition of further not damaging the bolt, stable dismantle the bolt.

Furthermore, the axis of the first rod piece is collinear with the axis of the first threaded through hole, the first rod piece is provided with a second threaded through hole 9 along the axis, the first threaded through hole and the second threaded through hole are butted to form a threaded channel, and the lead screw is matched with the threaded channel; and two ends of the lead screw are arranged outside the threaded passage.

It needs to point out very much, because movable splint and solid fixed splint press from both sides the rounding bolt together tightly, movable splint's removal needs the lead screw to drive, lead screw cooperation screw thread passageway transmission, the counter-force of the clamp force that the lead screw received can be exerted on screw thread passageway, when pressing from both sides tightly and turning handle, the lead screw receives movable splint's great counter-force, however, the shorter screw thread bearing capacity of axial is limited, therefore, all be provided with screw thread through-hole structure through member and stiff end, and form screw thread passageway with the coaxial setting of the two, the cooperation area of lead screw and helicitic texture has been increased, when the lead screw is exerted power, helicitic texture can provide more stable support to the lead screw, play protection helicitic texture's effect, thereby can provide bigger clamping-force, avoid the damage of screw thread.

Furthermore, the movable clamping plate comprises a first clamping plate 5 and a second clamping plate 6, a groove is respectively arranged on the first clamping plate and the second clamping plate, the first clamping plate and the second clamping plate are fixed together in a mode that the grooves are opposite, and one end of the screw rod, which is close to the movable clamping plate, is matched with the groove; the first clamping plate is provided with a through hole, the second clamping plate is provided with a threaded hole, and a fixing screw 7 penetrates through the through hole of the first clamping plate to be matched with the threaded hole in the second clamping plate so as to fix the first clamping plate and the second clamping plate together;

preferably, one end of the screw rod, which is close to the movable clamping plate, is provided with a spherical convex block, the groove is a spherical groove matched with the spherical convex block, and the spherical convex block can freely rotate in the groove around the axis of the spherical convex block; when fixed first splint and second splint, earlier with the spherical recess cooperation of spherical lug and second splint, then cover first splint with the mode that spherical recess corresponds spherical lug on the second splint, at this moment, through-hole and screw hole correspond just, pass the through-hole of first splint with set screw and the screw hole cooperation of second splint, restrict spherical lug to connect movable clamp plate and lead screw.

Promote movable splint through the lead screw, cooperate solid fixed splint to form stable centre gripping structure of exerting oneself, can stabilize the centre gripping with the hexagon bolt of rounding, reach the stable clamping structure that ordinary spanner is difficult to form, avoided spanner splint to be difficult to stabilize the slip that the centre gripping rounding back bolt leads to, improve the efficiency of exerting oneself of dismantling the in-process.

A handle 11 is arranged at one end of the screw rod, which is far away from the movable clamping plate; preferably, the handle comprises a second rod, the second rod is mounted on the screw, and the axis of the second rod is perpendicular to the axis of the screw.

One end of the screw rod is a spherical convex block, the other end of the screw rod is a handle, the rotary and translational actions of the screw rod can be converted into translational actions through the convex block and then output to the movable clamping plate, the input force arm when the screw rod is rotated can be improved through the handle, and larger clamping force can be achieved when the same force is applied, so that the force applying efficiency of rotating and disassembling the rounding bolt is improved.

The working principle of the dismounting device of the present application is described in detail below with reference to fig. 1:

before the dismantlement, the handle rotates, adjust the interval of solid fixed splint and movable clamp plate, make its interval be a bit more than the outer hexagon bolt size of rounding, place solid fixed splint and movable clamp plate in the outer hexagon bolt both sides of the rounding that will dismantle, rotatory handle drives the lead screw and rotates, drive movable clamp plate and remove to solid fixed splint direction, the outer hexagon bolt that will round the rounding presss from both sides tightly to certain tension, at this moment, the outer hexagon head is pinned to zigzag structure, be favorable to dismantling the bolt, then the gripping handle uses the bolt axis to rotate as the axle, the bolt begins to rotate under the effect of movable clamp plate and solid fixed splint, then gradually the twist grip reaches the purpose of quick dismantlement outer hexagon bolt of rounding.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides an outer hex bolts dismounting device, its characterized in that, includes straight arm portion and kink, the one end of kink is the stiff end, installs on the handle of straight arm portion, and the other end is the free end, the free end is used for the contact to treat the outer hex bolts who dismantles, is equipped with the movable clamp plate just to the stiff end between stiff end and the free end, straight arm portion still includes the lead screw that the movable clamp plate is connected to one end, the lead screw cooperates with the first screw through-hole that the stiff end was predetermine, the movable clamp plate is used for pressing from both sides the outer hex bolts who treats the dismantlement jointly with the free end under the promotion of lead screw.

2. The external hex bolt remover of claim 1, wherein said bent portion is "Contraband" shaped, and said bent portion includes an opening for receiving the external hex bolt to be removed.

3. The outer hexagon bolt dismounting device according to claim 1, wherein the free end is further provided with a fixed clamping plate facing the movable clamping plate, and the fixed clamping plate and the movable clamping plate together form a clamping space for clamping the outer hexagon bolt to be dismounted.

4. The outer hexagon bolt dismounting device according to claim 3, wherein the serration structure is provided on both the face of the fixed clamping plate facing the movable clamping plate and the face of the movable clamping plate facing the fixed clamping plate.

5. The alien bolt remover as claimed in claim 1, wherein the handle comprises a first rod fixed at one end to a fixed end.

6. The alien bolt remover as claimed in claim 5, wherein the axis of the first rod is collinear with the axis of the first threaded through hole, the first rod is provided with a second threaded through hole along the axis, the first threaded through hole and the second threaded through hole are butted to form a threaded passage, and the lead screw is engaged with the threaded passage.

7. The alien bolt remover as claimed in claim 6, wherein both ends of the lead screw are outside the threaded passage.

8. The outer hexagon bolt dismounting device according to claim 1, wherein the movable clamp plate comprises a first clamp plate and a second clamp plate, a groove is respectively formed on the first clamp plate and the second clamp plate, the first clamp plate and the second clamp plate are fixed together in a manner that the grooves are opposite, and one end of the screw rod close to the movable clamp plate is matched with the groove.

9. The hex head bolt remover of claim 8, wherein the end of the threaded shaft adjacent to the movable clamp is a ball projection, and the recess is a ball recess that mates with the ball projection, the ball projection being free to rotate about its axis within the recess.

10. The outer hexagon bolt dismounting device according to claim 1, wherein a handle is arranged at one end of the screw rod, which is far away from the movable clamping plate; preferably, the handle comprises a second rod, the second rod is mounted on the screw, and the axis of the second rod is perpendicular to the axis of the screw.