CN109159065B - Method for quickly disassembling rusted bolt - Google Patents

Method for quickly disassembling rusted bolt Download PDF

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Publication number
CN109159065B
CN109159065B CN201811158856.6A CN201811158856A CN109159065B CN 109159065 B CN109159065 B CN 109159065B CN 201811158856 A CN201811158856 A CN 201811158856A CN 109159065 B CN109159065 B CN 109159065B
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connecting rod
rack
bolt
connecting seat
groove
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CN201811158856.6A
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CN109159065A (en
Inventor
尹苑苑
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RUIAN WEIFU STANDARD PARTS Co.,Ltd.
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Ruian Weifu Standard Parts Co ltd
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Priority to CN201811158856.6A priority Critical patent/CN109159065B/en
Publication of CN109159065A publication Critical patent/CN109159065A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B17/00Hand-driven gear-operated wrenches or screwdrivers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00Details of, or accessories for, spanners, wrenches, screwdrivers

Abstract

The invention belongs to the technical field of equipment maintenance, and particularly relates to a method for quickly disassembling a rusted bolt, wherein a socket wrench used in the method comprises a socket, a first connecting rod, a second connecting rod, a connecting device, an end cover, a first rack and a connecting seat, wherein the end cover is positioned at the top end of the first connecting rod, and an annular groove is formed in the end cover; one end of the first connecting rod is rotatably arranged on the end cover, the other end of the first connecting rod is fixedly connected with the connecting seat, and the outer ring of the top end of the first connecting rod is provided with threads; the connecting seat is connected with the second connecting rod through a connecting device; the bottom of the second connecting rod is fixedly connected with a sleeve; the first connecting rod is symmetrically provided with cross rods; according to the socket wrench, after the bolt is separated from a tightening state by rotating the cross rod, the first rack is used for driving the first connecting rod to rotate, so that the socket is driven by inertial rotation to continuously disassemble the bolt, invalid work of operators is avoided, and the working efficiency is improved.

Description

Method for quickly disassembling rusted bolt
Technical Field
The invention belongs to the technical field of equipment maintenance, and particularly relates to a method for quickly disassembling a rusted bolt.
Background
The socket spanner is composed of a plurality of sockets with hexagonal holes or dodecagonal holes, and a plurality of accessories such as handles, connecting rods and the like, and is particularly suitable for screwing bolts or nuts with very narrow or deep recesses. The socket wrench is widely used due to the convenience of operation and the difficulty of releasing hands. The sleeve is divided into metric system and English system, although the sleeve has the same concave shape, the outer diameter, the length and the like are designed according to the shape and the size of corresponding equipment, and the country does not have unified regulations, so the sleeve is relatively flexible in design and meets the requirements of the public. Socket wrenches are generally provided with a socket head with various specifications, a swing handle, a connecting rod, a universal joint, a screwdriver joint, an elbow handle and the like for being sleeved with a hexagonal nut. The sleeve head of the socket wrench is a concave hexagonal cylinder; the wrench is usually made of carbon structural steel or alloy structural steel, the head portion of the wrench has a predetermined hardness, and the middle and handle portions are resilient.
When the existing socket wrench is used for disassembling and assembling equipment, the cross rod needs to be rotated to drive the socket to disassemble the bolt, but when the bolt is out of a screwing state, the cross rod still needs to be rotated manually for disassembling, so that time and labor are wasted, and the working efficiency is low; and when the equipment needs to be disassembled, the problem that the bolt is difficult to disassemble due to long service time or poor maintenance is often solved.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a method for quickly disassembling a rusted bolt, and the method mainly aims to improve the working efficiency of disassembling equipment. After the socket wrench used in the method enables the bolt to be separated from the tightening state by rotating the cross rod, an operator moves the locking ring downwards, and the locking ring moves to the bottom, so that the center of gravity of the whole device is moved downwards, and the stability of the socket during rotation is improved; under the action of the spring, the second racks slide outwards to drive the gears meshed with the tops to rotate reversely, the gears drive the third gears meshed with the third racks to slide inwards, the third racks slide inwards to push the connected locking claws to open outwards, and the locking claws are clamped into the first rectangular grooves of the connecting seat, so that the connecting seat is connected with the fixed block through the locking claws; an operator drives the first connecting rod to rotate by utilizing the first rack, so that the sleeve is driven by the inertia rotation through the connecting device to continuously disassemble the bolt, and the invalid work of the operator is avoided.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for quickly disassembling a rusted bolt comprises the following steps:
s1: respectively heating a sleeve of the socket wrench and a rusted bolt to be disassembled by using a high-frequency heater;
s2: drilling holes in the middle of the rusted bolts heated in the S1 mode by using an electric drill;
s3: after drilling is finished, immediately introducing liquid nitrogen into the hole in the S2 through a pipeline, and cooling the rusted bolt;
s4: covering a layer of heat insulation cloth on the surface of the rusted bolt in S3;
s5: sleeving the sleeve in the step S1 on the rusted bolt covered with the heat insulation cloth in the step S4, and cooling the sleeve by using liquid nitrogen to disassemble the rusted bolt; in a hexagonal through groove of a sleeve of the socket wrench, an arc groove is formed at the intersection of adjacent edges, in the process that the sleeve is sleeved in a rusted bolt, heat insulation cloth covering the surface of the rusted bolt can be extruded into the arc groove formed in the sleeve under the action of a sharp corner of the rusted bolt, the friction between the sleeve and the rusted bolt is increased, meanwhile, liquid nitrogen cools the sleeve, the sleeve after being cooled is gradually shrunk to hold the rusted bolt tightly, the slipping and falling in the dismounting process are avoided, and the dismounting efficiency is improved;
the socket wrench comprises a socket, a first connecting rod, a second connecting rod, a connecting device, an end cover, a first rack and a connecting seat, wherein the end cover is positioned at the top end of the first connecting rod, and an annular groove is formed in the end cover; the annular groove is used for placing a first rack; one end of the first connecting rod is rotatably arranged on the end cover, the other end of the first connecting rod is fixedly connected with the connecting seat, the outer ring of the top end of the first connecting rod is provided with threads, and the top end of the first connecting rod can be meshed with the first rack; the connecting seat is connected with the second connecting rod through a connecting device, and a groove is formed in the bottom of the connecting seat; the connecting device is used for connecting the second connecting rod and the connecting seat; the bottom of the second connecting rod is fixedly connected with a sleeve; the first connecting rod is symmetrically provided with cross rods. When the bolt is detached from the equipment, an operator pulls the first rack inserted into the annular groove, the first rack is meshed with the first connecting rod, so that the first connecting rod is driven to rotate, the first connecting rod drives the connected connecting seat to rotate, the connecting seat drives the second connecting rod to rotate through the connecting device, and the second connecting rod drives the sleeve to rotate, so that quick detachment is realized; according to the invention, after the bolt is separated from the tightening state by rotating the cross rod, the first rack is used for driving the first connecting rod to rotate, so that the sleeve is driven to continuously disassemble the bolt by inertia rotation, thereby avoiding invalid work of operators and improving the working efficiency.
Preferably, the connecting device comprises a fixed block, a locking ring, a gear, a second rack, a third rack and a locking claw, the bottom of the fixed block is fixedly connected to the second connecting rod, the top of the fixed block is rotatably connected to the inside of a groove of the connecting seat, and a group of sliding grooves are formed in the inner circumference of the fixed block; a second rack is slidably arranged in each sliding groove; one end of each second rack is connected in the sliding groove through a spring, and the other end of each second rack abuts against the inner ring of the locking ring; the locking ring is annular and is sleeved on the fixed block, and a flange is arranged on the inner ring of the locking ring in the circumferential direction; the second racks are all meshed with the gear on the top; the gears are all meshed with a third rack on the top; the top of the fixed block is provided with a cavity, and the third racks are all slidably mounted in the cavity of the fixed block; one end of the third rack is hinged with one end of the locking claw; the other end of each locking claw extends out of the fixing block and can be clamped into the first rectangular groove, each locking claw is arc-shaped, and the middle of each locking claw is hinged to the corresponding fixing block; a group of first rectangular grooves are formed in the circumferential direction of the connecting seat and used for locking the locking claws. When the device is used, an operator moves the lock ring downwards, and the lock ring moves to the bottom, so that the center of gravity of the whole device moves downwards, and the stability of the sleeve during rotation is improved; under the action of the spring, the second racks slide outwards to drive the gears meshed with the tops to rotate reversely, the gears drive the third gears meshed with the third racks to slide inwards, the third racks slide inwards to push the connected locking claws to open outwards, and the locking claws are clamped into the first rectangular grooves of the connecting seat, so that the connecting seat is connected with the fixed block through the locking claws; when a worker uses the first rack to drive the first connecting rod to rotate, the first connecting rod drives the connecting seat to rotate, the connecting seat drives the second connecting rod to rotate through the connecting device, and the second connecting rod drives the sleeve to rotate, so that the bolt can be rapidly disassembled.
Preferably, rubber pads are arranged on two sides of the first rectangular groove and used for buffering impact force generated when the locking claws are clamped into the first rectangular groove. During the use, open the moment of going into the rectangular channel of connecting seat in the card when the locking claw outside, the local atress of locking claw tip easily takes place to damage, is equipped with the rubber pad through rectangular channel both sides No. one to buffering locking claw card is gone into the impact force of rectangular channel in No. one, thereby has improved the life of locking claw.
Preferably, the connecting seat is circumferentially provided with a heat dissipation groove, and the heat dissipation groove is used for dissipating heat of the connecting seat. During the use, along with the increase of box spanner operating time, the junction friction easily produces the heat between the locking claw on connecting seat and the fixed block, through set up the radiating groove on the connecting seat, dispels the heat to the connecting seat to improve the life of device.
Preferably, an eccentric block is fixedly connected to one side of the first connecting rod and used for prolonging the rotation time of the first connecting rod. When the connecting rod device is used, the eccentric block is arranged on one side of the first connecting rod, and when the first connecting rod rotates under the action of the first rack, the eccentric block rotates along with the first connecting rod, so that the inertial rotation time of the first connecting rod can be prolonged, and the working efficiency of the device is further improved.
Preferably, horizontal pole one end all articulates on a connecting rod, be provided with corresponding No. two rectangular channels on the connecting rod outer lane, No. two rectangular channels are used for holding the horizontal pole. When the bolt is in a screwed state, the cross bar is taken out from the second rectangular groove, and the cross bar is manually used for unscrewing the bolt; after the bolt is unscrewed, the bolt is disassembled by utilizing the inertia rotation of the device, and the cross rods on the two sides of the first connecting rod are folded and collected into the second rectangular groove, so that the operation of workers is facilitated.
The invention has the following beneficial effects:
1. according to the method for quickly disassembling the rusted bolt, after the bolt is separated from a screwed state by rotating the cross rod by using the socket wrench, an operator moves the locking ring downwards, and the locking ring moves to the bottom, so that the integral gravity center of the device is moved downwards, and the stability of the socket during rotation is improved; under the action of the spring, the second racks slide outwards to drive the gears meshed with the tops to rotate reversely, the gears drive the third gears meshed with the third racks to slide inwards, the third racks slide inwards to push the connected locking claws to open outwards, and the locking claws are clamped into the first rectangular grooves of the connecting seat, so that the connecting seat is connected with the fixed block through the locking claws; an operator drives the first connecting rod to rotate by utilizing the first rack, so that the sleeve is driven by utilizing inertial rotation through the connecting device to continuously disassemble the bolt, the invalid work of the operator is avoided, and the working efficiency is improved; the corroded bolt is difficult to disassemble, and the corroded bolt is heated and cooled to generate a gap after expansion with heat and contraction with cold, so that the corroded bolt is convenient to disassemble by using a socket wrench; and use the coolant oil on the one hand can cool off the corrosion bolt once more, and on the other hand can lubricate the corrosion bolt to be convenient for box spanner dismantles it, and then improve equipment's dismouting efficiency.
2. According to the method for quickly disassembling the rusted bolt, the rubber pads are arranged on the two sides of the first rectangular groove, so that when the locking claw is opened outwards and clamped into the first rectangular groove of the connecting seat, the end part of the locking claw is prevented from being damaged due to local stress, the impact force generated when the locking claw is clamped into the first rectangular groove is buffered, and the service life of the locking claw is prolonged.
3. According to the method for quickly disassembling the rusted bolt, the sleeve wrench used in the method is provided with the heat dissipation groove on the connecting seat, along with the increase of the working time of the sleeve wrench, heat is easily generated due to friction at the joint between the connecting seat and the locking claw on the fixed block, and the connecting seat is dissipated, so that the service life of the device is prolonged; by arranging the foldable cross bar, when the bolt is in a screwed state, the cross bar is taken out of the second rectangular groove, and the bolt is unscrewed by manually using the cross bar; after the bolt is unscrewed, the bolt is disassembled by utilizing the inertia rotation of the device, and the cross rods on the two sides of the first connecting rod are folded and collected into the second rectangular groove, so that the operation of workers is facilitated.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a schematic structural view of a socket wrench used in the present invention;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;
FIG. 4 is a cross-sectional view taken at B-B of FIG. 2;
in the figure: the connecting device comprises a sleeve 1, a first connecting rod 2, a cross rod 21, an eccentric block 22, a second rectangular groove 23, a second connecting rod 3, a connecting device, a fixing block 41, a locking ring 42, a gear 43, a second rack 44, a third rack 45, a locking claw 46, an end cover 5, an annular groove 51, a first rack 6, a connecting seat 7, a first rectangular groove 71, a rubber pad 72 and a heat dissipation groove 73.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 4, the method for quickly disassembling the rusted bolt of the invention comprises the following steps:
s1: respectively heating a sleeve of the socket wrench and a rusted bolt to be disassembled by using a high-frequency heater;
s2: drilling holes in the middle of the rusted bolts heated in the S1 mode by using an electric drill;
s3: after drilling is finished, immediately introducing liquid nitrogen into the hole in the S2 through a pipeline, and cooling the rusted bolt;
s4: covering a layer of heat insulation cloth on the surface of the rusted bolt in S3;
s5: sleeving the sleeve in the step S1 on the rusted bolt covered with the heat insulation cloth in the step S4, and cooling the sleeve by using liquid nitrogen to disassemble the rusted bolt; in a hexagonal through groove of a sleeve of the socket wrench, an arc groove is formed at the intersection of adjacent edges, in the process that the sleeve is sleeved in a rusted bolt, heat insulation cloth covering the surface of the rusted bolt can be extruded into the arc groove formed in the sleeve under the action of a sharp corner of the rusted bolt, the friction between the sleeve and the rusted bolt is increased, meanwhile, liquid nitrogen cools the sleeve, the sleeve after being cooled is gradually shrunk to hold the rusted bolt tightly, the slipping and falling in the dismounting process are avoided, and the dismounting efficiency is improved;
the socket wrench comprises a socket 1, a first connecting rod 2, a second connecting rod 3, a connecting device, an end cover 5, a first rack 6 and a connecting seat 7, wherein the end cover 5 is positioned at the top end of the first connecting rod 2, and an annular groove 51 is formed in the end cover 5; the annular groove 51 is used for placing the first rack 6; one end of the first connecting rod 2 is rotatably arranged on the end cover 5, the other end of the first connecting rod is fixedly connected with the connecting seat 7, the outer ring of the top end of the first connecting rod 2 is provided with threads, and the top end of the first connecting rod 2 can be meshed with the first rack 6; the connecting seat 7 is connected with the second connecting rod 3 through a connecting device, and a groove is formed in the bottom of the connecting seat 7; the connecting device is used for connecting the second connecting rod 3 and the connecting seat 7; the bottom of the second connecting rod 3 is fixedly connected with the sleeve 1; the first connecting rod 2 is symmetrically provided with cross rods 21. When the bolt dismounting device is used, when the bolt on equipment needs to be dismounted, the bolt needing to be dismounted is sleeved in the sleeve 1 and firstly dismounted through the rotating cross rod 21, when the bolt is separated from a screwing state, an operator pulls the first rack 6 inserted into the annular groove 51, the first rack 6 is meshed with the first connecting rod 2, so that the first connecting rod 2 is driven to rotate, the first connecting rod 2 drives the connected connecting seat 7 to rotate, the connecting seat 7 drives the second connecting rod 3 to rotate through the connecting device, and the second connecting rod 3 drives the sleeve 1 to rotate, so that quick dismounting is realized; according to the invention, after the bolt is separated from the tightening state by rotating the cross rod 21, the first rack 6 is used for driving the first connecting rod 2 to rotate, so that the sleeve 1 is driven to continuously disassemble the bolt by inertia rotation, thereby avoiding invalid work of operators and improving the working efficiency.
As an embodiment, the connecting device comprises a fixed block 41, a locking ring 42, a gear 43, a second rack 44, a third rack 45 and a locking claw 46, the bottom of the fixed block 41 is fixedly connected to the second connecting rod 3, the top of the fixed block 41 is rotatably connected in a groove of the connecting seat 7, and a set of sliding grooves are formed in the inner circumference of the fixed block 41; a second rack 44 is slidably mounted in each sliding groove; one end of the second rack 44 is connected in the chute through a spring, and the other end of the second rack is abutted against the inner ring of the locking ring 42; the locking ring 42 is annular, the locking ring 42 is sleeved on the fixed block 41, and a flange is arranged on the inner ring of the locking ring 42 in the circumferential direction; the second racks 44 are all meshed with the gear 43 at the top; the gears 43 are all meshed with a third rack 45 at the top; the top of the fixed block 41 is provided with a cavity, and the third racks 45 are all slidably mounted in the cavity of the fixed block 41; one end of the third rack 45 is hinged with one end of the locking claw 46; the other end of each locking claw 46 extends out of the fixing block 41 and can be clamped into the first rectangular groove 71, each locking claw 46 is arc-shaped, and the middle part of each locking claw 46 is hinged to the corresponding fixing block 41; the connecting seat 7 is circumferentially provided with a group of first rectangular grooves 71, and the first rectangular grooves 71 are used for locking the locking claws 46. When the device is used, an operator moves the lock ring 42 downwards, and the lock ring 42 moves to the bottom, so that the center of gravity of the whole device moves downwards, and the stability of the sleeve 1 during rotation is improved; under the action of the spring, the second rack 44 slides outwards to drive the gear 43 meshed with the top part to rotate reversely, the gear 43 drives the third rack 45 meshed with the third rack to slide inwards, the third rack 45 slides inwards to push the connected locking claw 46 to open outwards so as to be clamped into the first rectangular groove 71 of the connecting seat 7, and the connecting seat 7 is connected with the fixing block 41 through the locking claw 46; when the staff uses rack 6 to drive connecting rod 2 to rotate, connecting rod 2 drives connecting seat 7 of connecting and rotates, and connecting seat 7 drives connecting rod 3 through connecting device and rotates, and connecting rod 3 drives sleeve 1 to rotate to can dismantle the bolt fast.
In one embodiment, rubber pads 72 are disposed on two sides of the first rectangular groove 71, and the rubber pads 72 are used for buffering the impact force generated when the locking claw 46 is clamped into the first rectangular groove 71. When the locking claw 46 is used, the end part of the locking claw 46 is easily damaged due to local stress at the moment when the locking claw 46 is outwards opened and clamped into the first rectangular groove 71 of the connecting seat 7, and the rubber pads 72 are arranged on two sides of the first rectangular groove 71, so that the impact force generated when the locking claw 46 is clamped into the first rectangular groove 71 is buffered, and the service life of the locking claw 46 is prolonged.
As one embodiment, the connection base 7 is circumferentially provided with a heat dissipation groove 73, and the heat dissipation groove 73 is used for dissipating heat from the connection base 7. During the use, along with the increase of box spanner operating time, the junction friction easily produces the heat between the locking claw 46 on connecting seat 7 and the fixed block 41, through set up radiating groove 73 on connecting seat 7, dispels the heat to connecting seat 7 to improve device's life.
In one embodiment, an eccentric block 22 is fixed to one side of the first connecting rod 2, and the eccentric block 22 is used for prolonging the rotation time of the first connecting rod 2. When the device is used, the eccentric block 22 is arranged on one side of the first connecting rod 2, and when the first connecting rod 2 rotates under the action of the first rack 6, the eccentric block 22 rotates along with the first connecting rod 2, so that the inertial rotation time of the first connecting rod 2 can be prolonged, and the working efficiency of the device is further improved.
As one embodiment, one end of each cross rod 21 is hinged to the first connecting rod 2, a corresponding second rectangular groove 23 is formed in the outer ring of the first connecting rod 2, and the second rectangular groove 23 is used for accommodating the cross rod 21. When the bolt is in a screwed state, the cross rod 21 is taken out from the second rectangular groove 23, and the cross rod 21 is manually used for unscrewing the bolt; when the bolt is unscrewed, the bolt is disassembled by utilizing the inertia rotation of the device, and the cross rods 21 on the two sides of the first connecting rod 2 are folded and collected into the second rectangular groove 23, so that the operation of workers is facilitated.
When the bolt dismounting device is used, when the bolt on equipment needs to be dismounted, the bolt needing to be dismounted is sleeved in the sleeve 1 and firstly dismounted by rotating the cross rod 21, when the bolt is separated from a screwing state, an operator moves the locking ring 42 downwards, and the locking ring 42 moves to the bottom, so that the center of gravity of the whole device is moved downwards, and the stability of the sleeve 1 during rotation is improved; under the action of the spring, the second rack 44 slides outwards to drive the gear 43 meshed with the top part to rotate reversely, the gear 43 drives the third rack 45 meshed with the third rack to slide inwards, the third rack 45 slides inwards to push the connected locking claw 46 to open outwards so as to be clamped into the first rectangular groove 71 of the connecting seat 7, and the connecting seat 7 is connected with the fixing block 41 through the locking claw 46; meanwhile, an operator pulls the first rack 6 inserted into the annular groove 51, the first rack 6 is meshed with the first connecting rod 2, so that the first connecting rod 2 is driven to rotate, the first connecting rod 2 drives the connecting seat 7 connected with the first rack to rotate, the connecting seat 7 drives the second connecting rod 3 to rotate through the connecting device, and the second connecting rod 3 drives the sleeve 1 to rotate, so that quick disassembly is realized; according to the invention, after the bolt is separated from the tightening state by rotating the cross rod 21, the first rack 6 is used for driving the first connecting rod 2 to rotate, so that the sleeve 1 is driven to continuously disassemble the bolt by inertia rotation, thereby avoiding invalid work of operators and improving the working efficiency; the rubber pads 72 are arranged on the two sides of the first rectangular groove 71, so that when the locking claw 46 is opened outwards and clamped into the first rectangular groove 71 of the connecting seat 7, the end part of the locking claw 46 is prevented from being damaged due to local stress, and the impact force generated when the locking claw 46 is clamped into the first rectangular groove 71 is buffered, so that the service life of the locking claw 46 is prolonged; along with the increase of the working time of the socket wrench, heat is easy to generate due to friction at the joint between the connecting seat 7 and the locking claw 46 on the fixed block 41, and the heat dissipation groove 73 is arranged on the connecting seat 7 to dissipate heat of the connecting seat 7, so that the service life of the device is prolonged; by arranging the eccentric block 22 on one side of the first connecting rod 2, when the first connecting rod 2 rotates under the action of the first rack 6, the time of inertial rotation of the first connecting rod 2 can be prolonged by the rotation of the eccentric block 22, so that the working efficiency of the device is further improved; by arranging the foldable cross bar 21, when the bolt is in a screwed state, the cross bar 21 is taken out from the second rectangular groove 23, and the bolt is unscrewed by manually using the cross bar 21; when the bolt is unscrewed, the bolt is disassembled by utilizing the inertia rotation of the device, and the cross rods 21 on the two sides of the first connecting rod 2 are folded and collected into the second rectangular groove 23, so that the operation of workers is facilitated.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in fig. 2, which is based on the orientation or positional relationship shown in fig. 2, and is used merely for convenience in describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be taken as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. A method for quickly disassembling a rusted bolt is characterized by comprising the following steps:
s1: respectively heating a sleeve of the socket wrench and a rusted bolt to be disassembled by using a high-frequency heater;
s2: drilling holes in the middle of the rusted bolts heated in the S1 mode by using an electric drill;
s3: after drilling is finished, immediately introducing liquid nitrogen into the hole in the S2 through a pipeline, and cooling the rusted bolt;
s4: covering a layer of heat insulation cloth on the surface of the rusted bolt in S3;
s5: sleeving the sleeve in the step S1 on the rusted bolt covered with the heat insulation cloth in the step S4, and cooling the sleeve by using liquid nitrogen to disassemble the rusted bolt;
the socket wrench comprises a socket (1), a first connecting rod (2), a second connecting rod (3), a connecting device, an end cover (5), a first rack (6) and a connecting seat (7), wherein the end cover (5) is positioned at the top end of the first connecting rod (2), and an annular groove (51) is formed in the end cover (5); the annular groove (51) is used for accommodating a first rack (6); one end of the first connecting rod (2) is rotatably arranged on the end cover (5), the other end of the first connecting rod is fixedly connected with the connecting seat (7), the outer ring of the top end of the first connecting rod (2) is provided with threads, and the top end of the first connecting rod (2) can be meshed with the first rack (6); the connecting seat (7) is connected with the second connecting rod (3) through a connecting device, and a groove is formed in the bottom of the connecting seat (7); the connecting device is used for connecting the second connecting rod (3) and the connecting seat (7); the bottom of the second connecting rod (3) is fixedly connected with the sleeve (1); the first connecting rod (2) is symmetrically provided with cross rods (21).
2. The method for quickly disassembling the rusted bolt according to claim 1, is characterized in that: the connecting device comprises a fixed block (41), a locking ring (42), a gear (43), a second rack (44), a third rack (45) and a locking claw (46), the bottom of the fixed block (41) is fixedly connected to the second connecting rod (3), the top of the fixed block (41) is rotatably connected to the inside of a groove of the connecting seat (7), and a group of sliding grooves are formed in the inner circumference of the fixed block (41); a second rack (44) is slidably mounted in each sliding groove; one end of each second rack (44) is connected into the sliding groove through a spring, and the other end of each second rack abuts against the inner ring of the locking ring (42); the locking ring (42) is annular, the locking ring (42) is sleeved on the fixing block (41), and a flange is arranged on the inner ring of the locking ring (42) in the circumferential direction; the second racks (44) are all meshed with the gear (43) at the top; the gears (43) are all meshed with a third rack (45) at the top; the top of the fixed block (41) is provided with a cavity, and the third racks (45) are all slidably mounted in the cavity of the fixed block (41); one end of each third rack (45) is hinged with one end of each locking claw (46); the other end of each locking claw (46) extends out of the fixing block (41) and can be clamped into the first rectangular groove (71), each locking claw (46) is arc-shaped, and the middle part of each locking claw (46) is hinged to the corresponding fixing block (41); a group of first rectangular grooves (71) are formed in the circumferential direction of the connecting seat (7), and the first rectangular grooves (71) are used for locking the locking claws (46).
3. The method for quickly disassembling the rusted bolt according to claim 2, is characterized in that: rubber pads (72) are arranged on two sides of the first rectangular groove (71), and the rubber pads (72) are used for buffering impact force generated when the locking claws (46) are clamped into the first rectangular groove (71).
4. The method for quickly disassembling the rusted bolt according to claim 1, is characterized in that: the connecting seat (7) is circumferentially provided with a heat dissipation groove (73), and the heat dissipation groove (73) is used for dissipating heat of the connecting seat (7).
5. The method for quickly disassembling the rusted bolt according to claim 1, is characterized in that: an eccentric block (22) is fixedly connected to one side of the first connecting rod (2), and the eccentric block (22) is used for prolonging the rotating time of the first connecting rod (2).
6. The method for quickly disassembling the rusted bolt according to claim 1, is characterized in that: horizontal pole (21) one end all articulates on connecting rod (2), be provided with corresponding No. two rectangular channel (23) on connecting rod (2) outer lane, No. two rectangular channel (23) are used for holding horizontal pole (21).
CN201811158856.6A 2018-09-30 2018-09-30 Method for quickly disassembling rusted bolt Active CN109159065B (en)

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Publication number Priority date Publication date Assignee Title
CN116423193B (en) * 2023-06-13 2023-08-22 江苏佳杰特种螺钉有限公司 Rust screw dismounting device

Citations (5)

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Publication number Priority date Publication date Assignee Title
KR200149097Y1 (en) * 1996-11-25 1999-07-01 이경일 Improved hexagonal bit socket for nut connection
CN102513778A (en) * 2011-11-23 2012-06-27 广州文冲船厂有限责任公司 Method for taking out bolt without damaging bolt hole
CN103447752A (en) * 2013-08-24 2013-12-18 国网安徽天长市供电有限责任公司 Device for disassembling screw from metal plate
CN204819305U (en) * 2015-07-29 2015-12-02 董淇 Pull drive formula screwdriver
CN206811814U (en) * 2017-06-26 2017-12-29 孙时泽 A kind of Quick-acting socket wrench

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200149097Y1 (en) * 1996-11-25 1999-07-01 이경일 Improved hexagonal bit socket for nut connection
CN102513778A (en) * 2011-11-23 2012-06-27 广州文冲船厂有限责任公司 Method for taking out bolt without damaging bolt hole
CN103447752A (en) * 2013-08-24 2013-12-18 国网安徽天长市供电有限责任公司 Device for disassembling screw from metal plate
CN204819305U (en) * 2015-07-29 2015-12-02 董淇 Pull drive formula screwdriver
CN206811814U (en) * 2017-06-26 2017-12-29 孙时泽 A kind of Quick-acting socket wrench

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