CN110695923A - Device for taking out broken bolt - Google Patents
Device for taking out broken bolt Download PDFInfo
- Publication number
- CN110695923A CN110695923A CN201911001724.7A CN201911001724A CN110695923A CN 110695923 A CN110695923 A CN 110695923A CN 201911001724 A CN201911001724 A CN 201911001724A CN 110695923 A CN110695923 A CN 110695923A
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- China
- Prior art keywords
- bolt
- broken
- sleeve rod
- adjusting
- rotary
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- 238000005520 cutting process Methods 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 2
- 239000000829 suppository Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/18—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same withdrawing broken threaded parts or twist drills
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention provides a device for taking out a broken bolt, which comprises a rotary adjusting piece and a supporting piece positioned above the broken bolt, wherein at least one cutting edge protrudes downwards from the bottom of the rotary adjusting piece, the rotary adjusting piece extends between the broken bolt and the supporting piece, the head of the rotary adjusting piece is upwards abutted against the supporting piece, and the cutting edge is downwards contacted with the broken bolt. This device simple structure, light small and exquisite, especially convenient operation, the enforceable nature is strong, can satisfy the taking out of splitting the bolt in the narrow and small space of different grade type, and the commonality is strong, and weak point consuming time, and is efficient, and this device convenient for material collection in addition easily makes, and is durable, can use repeatedly.
Description
Technical Field
The invention relates to the technical field of maintenance, in particular to a device for taking out a broken bolt in a narrow space.
Background
Sufficient space is required for broken bolt removal to facilitate handling by personnel. For broken bolts in narrow spaces, if convenient, the surrounding parts can be disassembled to take out the broken bolts, which usually takes a long time and has low efficiency. However, in fact, the broken bolt is often trapped in narrow spaces with narrow gaps, and surrounding parts are not easy to remove or the removal cost is high, and at this time, auxiliary tools are needed to take out the broken bolt.
The existing broken bolt taking-out mode is that a drill bit of a drilling tool is generally used for axially drilling a broken bolt, and then a positioning piece is stretched into a rotated hole through interference fit to unscrew the broken bolt. The drawbacks of this approach are: 1. the center shaft of the drill bit is difficult to be ensured to be coincident with the center shaft of the broken bolt, and the broken bolt is easy to be drilled into more fragments; 2. other parts are arranged at the upper ends of the positions of a plurality of broken bolts, so that the drilling tool is difficult to operate; 3. the interference fit has higher requirement on the positioning piece, the operation is complex, and the broken bolt can not be ensured to be taken out certainly.
Disclosure of Invention
The invention aims to provide a device for taking out a broken bolt, which is used for improving the efficiency of taking out the broken bolt in a narrow space, reducing the workload, shortening the working hours and saving the cost.
The device for taking out the broken bolt comprises a rotary adjusting piece and a supporting piece positioned above the broken bolt, wherein at least one cutting edge protrudes downwards from the bottom of the rotary adjusting piece, the rotary adjusting piece extends between the broken bolt and the supporting piece, the head of the rotary adjusting piece is upwards abutted against the supporting piece, and the cutting edge is downwards contacted with the broken bolt. In this device, the length of rotation regulation piece can be adjusted as required using the spanner, adjusts to support behind between fracture bolt and support piece, and the regulation is continued again, until the cutting edge at fracture bolt contact surface extrusion cutting form the pit and imbed into, then uses the spanner rotation and keep atress position and distance, reaches the purpose of loosening the fracture bolt soon, finally takes out the fracture bolt.
Furthermore, the rotary adjusting part comprises a rotary sleeve rod and an adjusting bolt, the rotary sleeve rod is sleeved on a screw rod of the adjusting bolt, and an inner cavity of the rotary sleeve rod is provided with an inner thread matched with an outer thread of the adjusting bolt; the cutting edge is arranged at the bottom of the rotary sleeve rod. During operation, the head of the adjusting bolt is abutted against the bottom of the supporting piece, the supporting piece is gradually stressed along with the adjusting process, and meanwhile, the cutting edge downwards extrudes the broken bolt to form a pit and is embedded into the pit, so that the broken bolt and the rotating sleeve rod are connected into a whole.
Furthermore, the cutting edge is arranged on one side of the bottom of the rotary sleeve rod, and the bottom of the cutting edge is an inclined plane. The design is favorable for embedding the cutting edge into the broken bolt, the connection degree after embedding can be ensured, and the situation that the cutting edge cannot be screwed out together with the rotary sleeve rod only by cutting the contact surface of the broken bolt is avoided.
Further, the rotating sleeve rod is in a prism structure so as to facilitate the operation of the open-end wrench.
Furthermore, the inner cavity of the rotary sleeve rod is a step-shaped through hole with the lower end tightened inwards, and the design can enable the adjusting bolt to be screwed in the rotary sleeve rod.
The support may be of two forms:
first, the support member is a flange or a protrusion fixedly disposed over the broken bolt. If the flange or the protruding part is suspended above the broken bolt, the flange or the protruding part can be used as an existing support without additional design.
Second, the support is a "
"shape moving part. Without ready-made support, can pass "
Realized by a 'shape moving part'
The inner cavity of the' shaped moving part has enough space for convenient operation and the gravity thereofGreater than the force with which the head of the adjusting bolt is lifted upward during operation, or a greater force (such as pressing with a hand or stepping on the foot) is applied at its upper end to counteract the force with which the head of the adjusting bolt is lifted upward.
In addition, said "
The height of the inner cavity of the' shaped moving part is larger than the whole height of the rotating sleeve rod and the adjusting bolt when the rotating sleeve rod and the adjusting bolt are completely screwed down and smaller than the whole height of the rotating sleeve rod and the adjusting bolt when the rotating sleeve rod and the adjusting bolt reach the unscrewing critical point. That is, the support member can both contact the head of the adjusting bolt and give the broken bolt enough space to be unscrewed upward. Accordingly, the "
The 'shape moving part' can be designed into a set of standard parts with different cavity height and width coefficients so as to adapt to the taking-out requirement of the broken bolt under various conditions.
The device for taking out the broken bolt is simple in structure, light, small and exquisite, particularly convenient to operate, strong in implementability, capable of meeting the requirement of taking out the broken bolt in different types of narrow spaces, strong in universality, short in time consumption and high in efficiency, and the device is convenient to obtain materials, easy to manufacture, firm and durable and can be used repeatedly.
Drawings
Fig. 1 is a schematic view showing the structure of the apparatus for removing a broken bolt of the present invention.
Fig. 2 is a front view of the apparatus for removing a broken bolt of the present invention.
Fig. 3 is a side view of the apparatus for removing a broken bolt of the present invention.
Fig. 4 is a top view of the apparatus for removing a broken bolt of the present invention.
Fig. 5 is a schematic view showing an operating state of the apparatus for removing a broken bolt of the present invention.
FIG. 6 shows a device for removing broken bolts according to the present invention "
The structure schematic diagram of the 'shape moving part'.
The figures are numbered:
1. rotating the adjusting member; 2. a cutting edge; 3. rotating the loop bar; 4. adjusting the bolt; 5. a flange; 6. breaking the bolt; 7. 'Laishu' for medical purpose"shape moving part.
Detailed Description
The following describes embodiments of the present invention, such as shapes and structures of respective members, mutual positions and connection relationships between respective portions, and actions and operation principles of the respective portions, in further detail, with reference to the accompanying drawings.
Example 1:
as shown in FIGS. 1-4,
the device for taking out the broken bolt 6 comprises a rotary adjusting part 1 and a supporting part positioned above the broken bolt 6, wherein the rotary adjusting part 1 comprises a rotary sleeve rod 3 and an adjusting bolt 4, the rotary sleeve rod 3 is sleeved on a screw rod of the adjusting bolt 4 and is in threaded fit with the screw rod, a cutting edge 2 protrudes downwards from one side of the bottom of the rotary sleeve rod 3, and the bottom of the cutting edge 2 is an inclined plane; the rotary adjusting piece 1 extends between the broken bolt 6 and the support piece, wherein the head of the adjusting bolt 4 is pressed against the bottom of the support piece, and the cutting edge 2 at the bottom of the rotary sleeve rod 3 is downwards contacted with the broken bolt 6. The rotation regulation piece 1 of this device stretches into between support piece and the fracture bolt 6, use the spanner to adjust its length according to actual conditions, increase along with the length of rotation regulation piece 1, adjusting bolt 4 upwards supports in support piece, cutting edge 2 supports in fracture bolt 6 downwards, and along with the continuation of regulation make support piece atress gradually, cutting edge 2 extrudees fracture bolt 6 downwards simultaneously and forms the pit and imbeds into, make fracture bolt 6 and rotatory loop bar 3 be connected as an organic wholely, then continue to use the spanner rotation and keep atress position and distance, reach the purpose of loosening fracture bolt 6 soon, finally take out fracture bolt 6.
The cutting edge 2 is arranged at one side of the bottom of the rotary sleeve rod 3, is generally a fan-shaped structure taking the axis of the rotary sleeve rod 3 as the center of a circle, and the bottom of the cutting edge is an inclined plane, and the specific inclined direction is as follows: from high to low of outside-in, and from high low to the other end by one end, nevertheless its low portion also outstanding in the bottom of rotatory loop bar 3, so the design both can guarantee the sharpness of cutting edge 2 embedding fracture bolt 6, can guarantee the connectivity after the embedding again, avoids cutting edge 2 to be only the contact surface of lacerating fracture bolt 6 and can't unscrew with rotatory loop bar 3 together. One or two or more cutting edges 2 may be provided.
The inner cavity of the rotary sleeve rod 3 is a step-shaped through hole with the lower end tightened inwards, the adjusting bolt 4 can be screwed in the rotary sleeve rod 3 through the design, parts are prevented from being lost, and meanwhile, data preparation can be made in advance for actual operation according to the integral height of the rotary adjusting piece 1 during screwing.
As shown in fig. 5, the supporting member may be a ready-made flange 5 fixed above the broken bolt 6, the flange 5 being a ready-made member above the broken bolt 6 and suspended above the broken bolt 6, and a space between the two into which the rotation adjusting member 1 is inserted. The rotary sleeve rod 3 is in a prismatic structure, the head of the adjusting bolt 4 is also in a prismatic structure, and two open-ended wrenches are used during specific operation, wherein one open-ended wrench is arranged on the rotary sleeve rod 3, and the other open-ended wrench is arranged at the head of the adjusting bolt 4; when the rotary adjusting piece 1 is not abutted between the broken bolt 6 and the flange 5, any one opening wrench is fixed to adjust the other one, or the two opening wrenches can be adjusted at the same time to increase the length of the rotary adjusting piece 1; after the two ends of the rotary adjusting part 1 are abutted, the open end wrench arranged on the rotary sleeve rod 3 is fixed, the head of the adjusting bolt 4 is rotated by the open end wrench at the upper end, so that the length of the rotary adjusting part 1 is continuously increased, the cutting edge 2 is fixed at a position and is embedded downwards, and the problem that the cutting edge 2 cannot be unscrewed out of the broken bolt 6 due to the fact that a sliding groove is formed on a contact surface of the cutting edge 2 and the broken bolt 6 is avoided.
Example 2:
the specific structure and operation principle of the rotation adjusting member 1 are as described above, and are not described in detail in this embodiment. The supporting member in this embodiment is "
A "shaped mobile element 7. As shown in FIG. 6 "
The inner cavity of the 'shaped moving part 7 has enough space for convenient operation, the gravity of the' shaped moving part is larger than the upward jacking force of the head of the adjusting bolt 4 during operation, and when the gravity of the 'shaped moving part is insufficient, a larger force can be exerted on the upper end of the' shaped moving part in a mode of pressing by hand or stepping by foot to offset the upward jacking force of the head of the adjusting bolt 4; at the same time "The height of the inner cavity of the' shaped movable part 7 is larger than the whole height of the rotating sleeve rod 3 and the adjusting bolt 4 when being completely screwed and is smaller than the whole height of the rotating sleeve rod 3 and the adjusting bolt 4 when reaching the unscrewing critical point. Namely, a "The' shaped moving part can contact the head of the adjusting bolt 4 and bear force, and can also give enough space for the broken bolt 6 to be screwed out upwards. Of the present device "
The' shape movable part 7 can be designed into a set of standard parts with different cavity height and width coefficients so as to adapt to the taking-out requirement of the broken bolt 6 under various conditions.
When in specific operation, two open-ended wrenches are also used, one open-ended wrench is arranged on the rotating sleeve rod 3, the other open-ended wrench is arranged at the head of the adjusting bolt 4 for adjustment, and when the head of the adjusting bolt 4 is abutted against "
When the cutting edge 2 at the bottom of the upper end surface of the' shaped moving part is downwards contacted with the contact surface of the fracture bolt 6, the open end wrench arranged on the rotating sleeve rod 3 is fixed, the head of the adjusting bolt 4 is rotated only by the open end wrench at the upper end, so that the whole length of the rotating adjusting part 1 is continuously increased until the cutting edge 2 is embedded into the fracture bolt 6 and connected into a whole, and then the cutting edge rotates reversely to unscrew the fracture boltAfter the suppository is tied, the suppository is taken out.
The basic idea and the basic principle of the invention have been explained above by way of an introduction to the embodiments listed. The invention is in no way limited to the embodiments listed above. All equivalent changes, improvements, deliberate deteriorations and the like based on the technical scheme of the invention shall fall within the protection scope of the invention.
Claims (8)
1. The device for taking out the broken bolt is characterized by comprising a rotary adjusting piece and a supporting piece located above the broken bolt, wherein at least one cutting edge protrudes downwards from the bottom of the rotary adjusting piece, the rotary adjusting piece extends into a position between the broken bolt and the supporting piece, the head of the rotary adjusting piece upwards supports against the supporting piece, and the cutting edge downwards contacts with the broken bolt.
2. The device for taking out the broken bolt according to claim 1, wherein the rotary adjusting member comprises a rotary sleeve rod and an adjusting bolt, the rotary sleeve rod is sleeved on a screw rod of the adjusting bolt, and an inner cavity of the rotary sleeve rod is provided with an internal thread matched with an external thread of the adjusting bolt; the cutting edge is arranged at the bottom of the rotary sleeve rod.
3. The apparatus for removing a broken bolt according to claim 2, wherein said cutting edge is provided on one side of the bottom of said rotary sleeve shank, and the bottom of said cutting edge is an inclined plane.
4. The apparatus for removing a broken bolt according to claim 2 wherein the rotating shank is prism structured.
5. The apparatus for removing broken bolts according to claim 2, wherein the inner cavity of the rotary sleeve rod is a stepped through hole whose lower end is tightened inward.
6. The apparatus for removing broken bolts of claim 5, wherein said support member is a flange or a projection fixed above the broken bolt.
7. A device for extracting broken bolts according to claim 5, wherein said support is a "
"shape moving part.
8. The device for removing broken bolts according to claim 7, wherein said device "
The height of the inner cavity of the' shaped moving part is larger than the whole height of the rotating sleeve rod and the adjusting bolt when the rotating sleeve rod and the adjusting bolt are completely screwed down and smaller than the whole height of the rotating sleeve rod and the adjusting bolt when the rotating sleeve rod and the adjusting bolt reach the unscrewing critical point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911001724.7A CN110695923B (en) | 2019-10-21 | 2019-10-21 | Device for taking out broken bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911001724.7A CN110695923B (en) | 2019-10-21 | 2019-10-21 | Device for taking out broken bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110695923A true CN110695923A (en) | 2020-01-17 |
| CN110695923B CN110695923B (en) | 2021-09-28 |
Family
ID=69201996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911001724.7A Active CN110695923B (en) | 2019-10-21 | 2019-10-21 | Device for taking out broken bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110695923B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL94838B1 (en) * | 1974-09-20 | 1977-08-31 | DRIVER | |
| CN2246050Y (en) * | 1995-12-12 | 1997-01-29 | 刘凤鸣 | Broken bolt withdrawal tool |
| CN2659645Y (en) * | 2003-05-29 | 2004-12-01 | 吴强水 | Knockout device for internal broken pipe |
| CN207548666U (en) * | 2017-12-19 | 2018-06-29 | 辽宁轻工职业学院 | Angle valve is broken joint disassembly tool |
| CN108608372A (en) * | 2018-04-11 | 2018-10-02 | 杨阿林 | A kind of broken end water pipe rotation extractor |
-
2019
- 2019-10-21 CN CN201911001724.7A patent/CN110695923B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL94838B1 (en) * | 1974-09-20 | 1977-08-31 | DRIVER | |
| CN2246050Y (en) * | 1995-12-12 | 1997-01-29 | 刘凤鸣 | Broken bolt withdrawal tool |
| CN2659645Y (en) * | 2003-05-29 | 2004-12-01 | 吴强水 | Knockout device for internal broken pipe |
| CN207548666U (en) * | 2017-12-19 | 2018-06-29 | 辽宁轻工职业学院 | Angle valve is broken joint disassembly tool |
| CN108608372A (en) * | 2018-04-11 | 2018-10-02 | 杨阿林 | A kind of broken end water pipe rotation extractor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110695923B (en) | 2021-09-28 |
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