CN109531486B - Dismounting wrench - Google Patents

Dismounting wrench Download PDF

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Publication number
CN109531486B
CN109531486B CN201811434113.7A CN201811434113A CN109531486B CN 109531486 B CN109531486 B CN 109531486B CN 201811434113 A CN201811434113 A CN 201811434113A CN 109531486 B CN109531486 B CN 109531486B
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CN
China
Prior art keywords
sleeve
connecting rod
positioning sleeve
wall
sliding
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201811434113.7A
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Chinese (zh)
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CN109531486A (en
Inventor
张心滨
鞠在丰
李玲
刘晓朋
赵颖
张旭
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HBIS Co Ltd Chengde Branch
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HBIS Co Ltd Chengde Branch
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Publication date
Application filed by HBIS Co Ltd Chengde Branch filed Critical HBIS Co Ltd Chengde Branch
Priority to CN201811434113.7A priority Critical patent/CN109531486B/en
Publication of CN109531486A publication Critical patent/CN109531486A/en
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Publication of CN109531486B publication Critical patent/CN109531486B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00Spanners; Wrenches
    • B25B13/48Spanners; Wrenches for special purposes
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

The invention provides a disassembly and assembly wrench, which belongs to the technical field of disassembly and assembly tools and comprises a positioning sleeve clamped with the outer wall of a flange and an extraction mechanism connected with the positioning sleeve and used for extracting a protective sleeve, wherein the inner wall of one end of the positioning sleeve is provided with a clamping inner wall which extends to the end face and is used for being clamped with the outer wall of the flange.

Description

Dismounting wrench
Technical Field
The invention belongs to the technical field of disassembly tools, and particularly relates to a disassembly wrench.
Background
The hydraulic cylinder with the magnetostrictive displacement sensor is widely applied to manufacturing industries, such as hot rolled coils in steel industry, and a large number of displacement sensors are used for monitoring the running conditions of equipment and steel plates in real time, wherein core components of a hot rolling unit are working roll bending and traversing cylinders.
The magnetostrictive displacement sensor comprises a sensor and a waveguide tube which is connected with the sensor and extends into the traversing cylinder, wherein the sensor is fixed on the cylinder head of the traversing cylinder through a flange, and a protective sleeve is sleeved on the waveguide tube for protecting the waveguide tube.
Because the protection sleeve needs to be overhauled regularly, the protector and the protection sleeve need to be dismantled, but the protection sleeve is limited by the structural arrangement of a rolling unit, only a strip-shaped operation space with larger depth at the cylinder head of the transverse moving cylinder is reserved as shown in figure 1, and in the prior art, when the protection sleeve is overhauled, the transverse moving cylinder needs to be dismantled entirely by large-scale lifting equipment, so that the workload is large, the operation is complex, and the operation time is consumed.
Disclosure of Invention
The invention aims to provide a disassembly and assembly wrench, and aims to solve the problems of large workload, complex operation and waste of operation time when a displacement sensor protection sleeve is overhauled in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a dismouting spanner, include the positioning sleeve with the outer wall joint of flange and be used for extracting protection sleeve's extraction mechanism that links to each other with the positioning sleeve, be equipped with on the inner wall of positioning sleeve one end and extend to the joint inner wall of terminal surface be used for with the outer wall joint of flange.
Further, the extraction mechanism comprises two clamp bars for plugging into the interior of the protective sleeve and a separation assembly for separating the two clamp bars and pressing the two clamp bars against the inner wall of the protective sleeve.
Further, the separation assembly comprises a first connecting rod and a second connecting rod which are arranged in the positioning sleeve in parallel, the first connecting rod and the second connecting rod are perpendicular to the axis of the positioning sleeve, a middle shaft rod which is coincident with the axis of the positioning sleeve is fixed between the first connecting rod and the second connecting rod, two slide bars which are respectively connected with the first connecting rod and the second connecting rod in a perpendicular sliding mode are symmetrically arranged on two sides of the middle shaft rod, two clamp bars are respectively fixedly connected with one ends of the two slide bars, the other ends of the two slide bars are operation ends and respectively extend to the outer side of the positioning sleeve, and a first compression spring which is used for pressing the two clamp bars to the protection sleeve is arranged between the two slide bars.
Further, the separation assembly further comprises a C-shaped buckle which can be clamped on the first connecting rod, the extending height of the C-shaped buckle along the axial direction of the first connecting rod is larger than the inner diameter of the protective sleeve, and the first connecting rod is fixed at one end far away from the inner wall of the clamping connection.
Further, the separation assembly is slidably coupled to the positioning sleeve, and the extraction mechanism further includes a securing assembly for securing the separation assembly to the positioning sleeve.
Further, the fixed subassembly includes the inserted bar, and the symmetry is equipped with the spout with first connecting rod, second connecting rod sliding contact along positioning sleeve axis direction on positioning sleeve's the inner wall, and every spout all is equipped with two through-holes with inserted bar grafting complex along positioning sleeve axis direction, is equipped with on the terminal surface of first connecting rod or second connecting rod with inserted bar grafting complex slot hole.
Further, the extraction mechanism also comprises a press-fit assembly for fixing the sliding protective sleeve.
Further, the pressure equipment subassembly is including fixing two dead levers on the locating sleeve inner wall and the slip sleeve that cup joints with two dead levers slip respectively, the axis coincidence of two dead levers and with locating sleeve's axis perpendicular crossing, two slip sleeve are close to protective case's one end all and are equipped with the pressure strip, second compression spring has all been cup jointed in two slip sleeve's the outside, the one end of second compression spring is supported on locating sleeve's inner wall, compression spring's the other end is supported on the pressure strip, be fixed with the supporting pole that is used for supporting the pressure strip along locating sleeve axial direction on first connecting rod and/or the second connecting rod, the interval of supporting pole and locating sleeve axis is less than the interval of pressure strip and locating sleeve axis, the length of supporting pole free end to the dead lever is less than the interval of two adjacent through-holes.
Further, the compacting plate is an arc plate which is attached and fixed with the protective sleeve.
Further, the disassembly wrench further comprises a camera arranged in the positioning sleeve, the camera is connected with the controller, and the controller is connected with the display.
The disassembly and assembly wrench provided by the application has the beneficial effects that: compared with the prior art, the application uses the positioning sleeve to extend into the strip-shaped operation space, uses the clamping inner wall at the end part of the positioning sleeve to be clamped and positioned with the flange, uses the extraction mechanism inside the positioning sleeve to extract the protection sleeve, and can be used for installing the protection sleeve back into the hydraulic cylinder after the maintenance is finished, thereby avoiding the disassembly of the hydraulic cylinder, reducing the workload and improving the working efficiency.
Drawings
FIG. 1 is a schematic diagram of a sensor and cylinder mounting structure in the prior art;
FIG. 2 is a schematic view of a part of the structure of the portion A in FIG. 1;
fig. 3 is a schematic structural diagram of a disassembly wrench according to an embodiment of the present invention;
Fig. 4 is a schematic structural diagram of a disassembly wrench according to a second embodiment of the present invention;
FIG. 5 is a schematic view of the C-shaped buckle in FIG. 4;
FIG. 6 is a schematic diagram of a wrench according to another embodiment of the present invention;
FIG. 7 is a schematic view of the part B of FIG. 6;
In the figure: 1. positioning a sleeve; 11. clamping the inner wall; 12. a chute; 13. a through hole; 21. a clamp lever; 22. a first link; 23. a second link; 24. a middle shaft lever; 25. a slide bar; 26. a first compression spring; 27. c-shaped buckle; 271. a notch; 31. a rod; 41. a fixed rod; 42. a sliding sleeve; 43. a compacting plate; 44. a second compression spring; 45. a support rod; 5. a flange; 6. a protective sleeve; 7. a sensor; 8. a waveguide; 9. and a hydraulic cylinder.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 3, a description will now be given of the disassembly wrench provided by the present invention. The disassembly wrench comprises a positioning sleeve 1 clamped with the outer wall of the flange 5 and an extraction mechanism connected with the positioning sleeve 1 and used for extracting the protective sleeve 6, wherein the inner wall of one end of the positioning sleeve 1 is provided with a clamping inner wall 11 which extends to the end face and is used for being clamped with the outer wall of the flange 5.
Referring to fig. 1 and 2, when the protection sleeve 6 is overhauled, the sensor 7 and the waveguide tube 8 connected with the sensor 7 are detached, the flange 5 is in threaded connection with the cylinder head of the hydraulic cylinder 9, and the protection sleeve 6 is inserted into the central holes in the flange 5 and the hydraulic cylinder 9.
Compared with the prior art, the application uses the positioning sleeve 1 to extend into the strip-shaped operation space, uses the clamping inner wall 11 at the end part of the positioning sleeve 1 to be clamped and positioned with the flange 5, uses the extraction mechanism inside the positioning sleeve 1 to extract the protective sleeve 6, and can use the device to mount the protective sleeve 6 back into the hydraulic cylinder 9 after the maintenance is finished, thereby avoiding the disassembly of the hydraulic cylinder, reducing the workload and improving the working efficiency.
Referring to fig. 3 and 4, as an embodiment of the disassembly wrench provided by the present invention, the extraction mechanism includes two clamp rods 21 for being inserted into the protection sleeve 6 and a separation assembly for separating the two clamp rods 21 and pressing the two clamp rods onto the inner wall of the protection sleeve 6. The two clamp rods 21 are inserted into the central holes of the protection sleeve 6 in a closed mode, the two closed clamp rods 21 are separated and propped against the inner wall of the protection sleeve 6 by using the separating assembly, then the protection sleeve 6 can be pulled away by integrally pulling away the positioning sleeve 1 and the separating assembly, the structure is simple, the workload of staff is reduced, and the use is convenient.
Referring to fig. 3 and 4, as a specific embodiment of the disassembly wrench provided by the invention, the separation assembly comprises a first connecting rod 22 and a second connecting rod 23 which are arranged in the positioning sleeve 1 in parallel, the first connecting rod 22 and the second connecting rod 23 are vertically intersected with the axis of the positioning sleeve 1, a middle shaft rod 24 which is overlapped with the axis of the positioning sleeve 1 is fixed between the first connecting rod 22 and the second connecting rod 23, two slide bars 25 which are vertically and slidingly connected with the first connecting rod 22 and the second connecting rod 23 respectively are symmetrically arranged on two sides of the middle shaft rod 24, two clamp rods 21 are fixedly connected with one ends of the two slide bars 25 respectively, the other ends of the two slide bars 25 are operation ends and extend to the outer side of the positioning sleeve 1 respectively, and a first compression spring 26 for pressing the two clamp rods 21 towards the protection sleeve 6 is arranged between the two slide bars 25. The separation assembly can be two X-shaped hinged connecting rods, one ends of the two connecting rods are closed and inserted into the central hole of the protection sleeve 6, when the other ends of the two connecting rods are opened, the insertion ends of the two connecting rods can be separated and the protection sleeve 6 is expanded, and the opening work of the two connecting rods can be realized through a compression spring or can be operated by a worker in a handheld manner; in another embodiment, the protection sleeve 6 is extracted by the distance between the two slide bars 25, the two slide bars 25 are symmetrically arranged at two sides of the middle shaft rod 24 and are connected through the first compression spring 26, a worker tightens the operation ends of the two slide bars 25, the two clamp bars 21 fixed at the other ends of the two slide bars 25 can be closed, after the two clamp bars 21 are closed, the positioning sleeve 1 is clamped with the flange 5, so that the two clamp bars 21 can be inserted into the central hole of the protection sleeve 1, the worker releases the operation ends of the two slide bars 25, and the two clamp bars 21 can be propped against the inner wall of the protection sleeve 6 through the spring force of the first compression spring 26; when the protective sleeve 6 is installed, in order to prevent the protective sleeve 6 from sliding along the clamp rod 21 to one end of the slide rod 5, an anti-backward sliding step is arranged at the joint of the clamp rod 21 and the slide rod 25; the first compression spring 26 is only required to connect the two slide bars 25, and in this embodiment, radial spring holes are provided on the bottom bracket 24, and the first compression spring 26 is disposed perpendicular to the bottom bracket 24.
The free ends of the two clamp bars 21 are provided with an introduction tip for facilitating access,
Referring to fig. 4 and 5, as a specific embodiment of the dismounting wrench provided by the invention, the separating assembly further includes a C-shaped buckle 27 capable of being clamped on the first connecting rod 22, the C-shaped buckle 27 extends along the axial direction of the first connecting rod 22 to a height greater than the inner diameter of the protection sleeve 6, and the first connecting rod 22 is fixed at one end far from the clamping inner wall 11. In order to prevent the spring force of the first compression spring 26 from losing efficacy and causing the device to slip off the protective sleeve 6, a C-shaped buckle 27 with a certain height is arranged between the two slide bars 25, the distance between the two slide bars 25 is prevented from becoming smaller, the C-shaped buckle 27 is tightly held on the first connecting rod 22, a notch 271 which is clamped with the middle shaft rod 24 is arranged on the C-shaped buckle 27, the notch 271 is arranged in the middle of the C-shaped buckle 27, and the two clamp bars 21 are ensured to uniformly abut against the inner wall of the protective sleeve 6.
Referring to fig. 6, as a specific embodiment of the dismounting wrench provided by the invention, the separating assembly is slidably connected with the positioning sleeve 1, and the extracting mechanism further includes a fixing assembly for fixing the separating assembly on the positioning sleeve 1. In another disassembly mode for disassembling the protection sleeve 6, after the positioning sleeve 1 is clamped with the flange 5, the two clamp rods 21 are inserted into the protection sleeve 6, the protection sleeve 6 is slid for a certain distance by using the separation assembly, so that the protection sleeve 6 can leak out of the flange 5 for a certain distance, and then the positioning sleeve 1 and the separation assembly are integrally pulled out, so that the protection sleeve 6 and the device are prevented from slipping off in the process of pulling out the protection sleeve 6.
Referring to fig. 6, as a specific embodiment of the dismounting wrench provided by the invention, the fixing assembly includes a plug rod 31, sliding grooves 12 in sliding contact with the first connecting rod 22 and the second connecting rod 23 along the axial direction of the positioning sleeve 1 are symmetrically arranged on the inner wall of the positioning sleeve 1, each sliding groove 12 is provided with two through holes 13 in plug fit with the plug rod 31 along the axial direction of the positioning sleeve 1, and slot holes in plug fit with the plug rod 31 are arranged on the end face of the first connecting rod 22 or the second connecting rod 23. The inner wall of the positioning sleeve 1 is provided with a chute 12 which is in sliding contact with the two ends of the first connecting rod 22 and the second connecting rod 23 and is fixed through a through hole 13 arranged on the chute 12, so that the protection sleeve 6 is driven to slide for a certain distance.
Referring to fig. 6, as an embodiment of the dismounting wrench provided by the invention, the extracting mechanism further includes a press-fitting assembly for fixing the sliding protection sleeve 6. After the protective sleeve 6 is drawn out in advance, the protective sleeve 6 is fixed by a press-fitting assembly arranged in the positioning sleeve 1, and the protective sleeve 6 is jointly fixed by the press-fitting assembly and the two clamp rods 21 to prevent slipping.
Referring to fig. 6 and 7, as a specific embodiment of the disassembly wrench provided by the invention, the press-fit assembly comprises two fixing rods 41 fixed on the inner wall of the positioning sleeve 1 and sliding sleeves 42 respectively sleeved with the two fixing rods 41 in a sliding manner, the axes of the two fixing rods 41 coincide and vertically intersect with the axis of the positioning sleeve 1, one ends of the two sliding sleeves 42 close to the protection sleeve 6 are respectively provided with a pressing plate 43, the outer sides of the two sliding sleeves 42 are respectively sleeved with a second compression spring 44, one ends of the second compression springs 44 are propped against the inner wall of the positioning sleeve 1, the other ends of the compression springs 44 are propped against the pressing plates 43, a supporting rod 45 for supporting the pressing plates 43 along the axial direction of the positioning sleeve 1 is fixed on the first connecting rod 22 and/or the second connecting rod 23, the distance between the supporting rod 45 and the axis of the positioning sleeve 1 is smaller than the distance between the pressing plates 43 and the axis of the positioning sleeve 1, and the length from the free ends of the supporting rod 45 to the fixing rods 41 is smaller than the distance between the two adjacent through holes 13. The support rod 45 is connected with the first connecting rod 23 and the press-fitting component, so that the press-fitting component can timely compress the protective sleeve 6 after the separation component slides, when the separation component does not move, the press-fitting component is compressed on the support rod 45 through the second compression spring 44, when the separation component moves towards the operation end, the support rod 45 also moves along with the separation component, because the length from the free end of the support rod 45 to the fixing rod 41 is smaller than the distance between the adjacent through holes 13, after the separation component moves in place, the press-fitting component loses support, the sliding sleeve 42 slides towards the protective sleeve 6 under the spring force of the second compression spring 44 until the compression plate 43 and the protective sleeve 6 are compressed and fixed.
As a specific embodiment of the dismounting wrench provided by the invention, the pressing plate 43 is an arc plate attached and fixed to the protection sleeve 6. The compacting plate 43 is an arc plate, so that the contact area between the compacting plate and the protective sleeve 6 can be increased, and the fixing stability is optimized.
As a specific implementation mode of the disassembly and assembly wrench, the disassembly and assembly wrench further comprises a camera arranged in the positioning sleeve 1, wherein the camera is connected with a controller, and the controller is connected with a display. Because the device needs to extend into a limited space with larger depth, workers cannot monitor the internal clamping and action conditions, and the camera is arranged in the positioning sleeve 1 to display internal pictures through the display, so that the operation is convenient.
The anti-skid patterns are arranged on the clamping inner wall 11, so that the clamping adhesive force between the device and the flange 5 is optimized, meanwhile, the outer wall of the positioning sleeve 1, which is positioned at the operation end of the sliding rod 5, is provided with an operating rod, the positioning sleeve 1 is clamped with the flange 5, and after the two clamp rods 21 are inserted into the protective sleeve 6, the operating rod is rotated to detach the flange 5, so that the flange 5 and the protective sleeve 6 can be detached simultaneously; after the maintenance is finished, the protection sleeve 6 can be installed back into the hydraulic cylinder 9 by using the device, and the flange 5 is fastened by using the positioning sleeve 1.
The dismounting wrench provided by the device is simple in structure, and can be used for dismounting the protective sleeve 6 and the flange 5 in a limited operation space, so that the labor intensity of workers is reduced, and the working efficiency is improved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (8)

1. The disassembly wrench is characterized by comprising a positioning sleeve (1) clamped with the outer wall of the flange (5) and an extraction mechanism connected with the positioning sleeve (1) and used for extracting the protective sleeve (6), wherein the inner wall of one end of the positioning sleeve (1) is provided with a clamping inner wall (11) extending to the end surface and used for being clamped with the outer wall of the flange (5);
The extraction mechanism comprises two clamp rods (21) which are inserted into the protective sleeve (6), and a separation assembly which is used for separating the two clamp rods (21) and extruding the two clamp rods on the inner wall of the protective sleeve (6);
The separating assembly comprises a first connecting rod (22) and a second connecting rod (23) which are arranged in the positioning sleeve (1) in parallel, wherein the first connecting rod (22) and the second connecting rod (23) are vertically intersected with the axis of the positioning sleeve (1), a middle shaft rod (24) which is coincident with the axis of the positioning sleeve (1) is fixed between the first connecting rod (22) and the second connecting rod (23), two sliding rods (25) which are vertically and slidably connected with the first connecting rod (22) and the second connecting rod (23) are symmetrically arranged on two sides of the middle shaft rod (24), two clamp rods (21) are fixedly connected with one ends of the two sliding rods (25), the other ends of the two sliding rods (25) are operation ends and extend to the outer side of the positioning sleeve (1) respectively, and a first compression spring (26) for pressing the two clamp rods (21) to the protection sleeve (6) is arranged between the two sliding rods (25); an anti-backward sliding step is arranged at the joint of the clamp rod (21) and the sliding rod (25).
2. The disassembly wrench of claim 1, wherein: the separation assembly further comprises a C-shaped buckle (27) which can be connected with the first connecting rod (22) in a clamping mode, the extending height of the C-shaped buckle (27) along the axial direction of the first connecting rod (22) is larger than the inner diameter of the protection sleeve (6), and the first connecting rod (22) is fixed at one end far away from the inner clamping wall (11).
3. The disassembly wrench of claim 1, wherein: the separating assembly is in sliding connection with the positioning sleeve (1), and the extracting mechanism further comprises a fixing assembly for fixing the separating assembly on the positioning sleeve (1).
4. A disassembly wrench as claimed in claim 3, wherein: the fixed subassembly includes inserted bar (31), the symmetry is equipped with on the inner wall of positioning sleeve (1) along positioning sleeve (1) axis direction with first connecting rod (22), second connecting rod (23) sliding contact's spout (12), every spout (12) are followed positioning sleeve (1) axis direction all be equipped with two with inserted bar (31) grafting complex through-hole (13), first connecting rod (22) or be equipped with on the terminal surface of second connecting rod (23) with inserted bar (31) grafting complex slotted hole.
5. The disassembly wrench of claim 4, wherein: the extraction mechanism further comprises a press-fit assembly for fixing the sliding protective sleeve (6).
6. The disassembly wrench of claim 5, wherein: the pressure equipment subassembly is including fixing two dead levers (41) on the inner wall of locating sleeve (1) and respectively with two sliding sleeve (42) that dead lever (41) slide and cup joint, two the axis coincidence of dead lever (41) and with the axis of locating sleeve (1) is perpendicular crossing, two sliding sleeve (42) are close to one end of protecting sleeve (6) all is equipped with clamp plate (43), two second compression spring (44) have all been cup jointed in the outside of sliding sleeve (42), the one end of second compression spring (44) is supported and is in on the inner wall of locating sleeve (1), the other end of compression spring (44) is supported and is in on clamp plate (43), be fixed with on first connecting rod (22) and/or second connecting rod (23) along bearing rod (45) that are used for bearing clamp plate (43) of locating sleeve (1) axial direction, bearing rod (45) are less than clamp plate (43) with the interval of bearing sleeve (1) axis is less than the interval between two adjacent length of locating sleeve (1) and the free end (41) are fixed to the through-hole.
7. The disassembly wrench of claim 6, wherein: the pressing plate (43) is an arc-shaped plate which is attached and fixed with the protective sleeve (6).
8. The disassembly wrench of any one of claims 1-7, wherein: the disassembly and assembly wrench further comprises a camera arranged in the positioning sleeve (1), the camera is connected with a controller, and the controller is connected with a display.
CN201811434113.7A 2018-11-28 2018-11-28 Dismounting wrench Active CN109531486B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811434113.7A CN109531486B (en) 2018-11-28 2018-11-28 Dismounting wrench

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811434113.7A CN109531486B (en) 2018-11-28 2018-11-28 Dismounting wrench

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Publication Number Publication Date
CN109531486A CN109531486A (en) 2019-03-29
CN109531486B true CN109531486B (en) 2024-05-24

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB711309A (en) * 1952-03-24 1954-06-30 Gordon Leslie Freeman Improvements in or relating to socket wrenches and box spanners
GB1169442A (en) * 1967-02-17 1969-11-05 Seaboard Tool Corp Improvements in or relating to Socket Wrenches.
WO1995022431A1 (en) * 1994-02-22 1995-08-24 Hydra-Tight Limited Hydraulic apparatus
JP2002103242A (en) * 2000-10-03 2002-04-09 Nippon Columbia Co Ltd Socket wrench
CN203665390U (en) * 2014-01-24 2014-06-25 林群富 Connecting rod length adjustable socket spanner
CN106425956A (en) * 2016-11-25 2017-02-22 中国核动力研究设计院 Bolt underwater dissembling and assembling tool
CN207643021U (en) * 2017-12-13 2018-07-24 广州市昊志机电股份有限公司 A kind of portable handle of a knife blind rivet attaching/detaching apparatus of perseverance torsion
CN108705479A (en) * 2018-08-17 2018-10-26 湖北清江水电开发有限责任公司 Hole well spanner
CN209698950U (en) * 2018-11-28 2019-11-29 河钢股份有限公司承德分公司 Wrench for dismounting

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB711309A (en) * 1952-03-24 1954-06-30 Gordon Leslie Freeman Improvements in or relating to socket wrenches and box spanners
GB1169442A (en) * 1967-02-17 1969-11-05 Seaboard Tool Corp Improvements in or relating to Socket Wrenches.
WO1995022431A1 (en) * 1994-02-22 1995-08-24 Hydra-Tight Limited Hydraulic apparatus
JP2002103242A (en) * 2000-10-03 2002-04-09 Nippon Columbia Co Ltd Socket wrench
CN203665390U (en) * 2014-01-24 2014-06-25 林群富 Connecting rod length adjustable socket spanner
CN106425956A (en) * 2016-11-25 2017-02-22 中国核动力研究设计院 Bolt underwater dissembling and assembling tool
CN207643021U (en) * 2017-12-13 2018-07-24 广州市昊志机电股份有限公司 A kind of portable handle of a knife blind rivet attaching/detaching apparatus of perseverance torsion
CN108705479A (en) * 2018-08-17 2018-10-26 湖北清江水电开发有限责任公司 Hole well spanner
CN209698950U (en) * 2018-11-28 2019-11-29 河钢股份有限公司承德分公司 Wrench for dismounting

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