CN209289123U - A kind of Bolt dismantling extension bar - Google Patents
A kind of Bolt dismantling extension bar Download PDFInfo
- Publication number
- CN209289123U CN209289123U CN201821647586.0U CN201821647586U CN209289123U CN 209289123 U CN209289123 U CN 209289123U CN 201821647586 U CN201821647586 U CN 201821647586U CN 209289123 U CN209289123 U CN 209289123U
- Authority
- CN
- China
- Prior art keywords
- extension bar
- protective shell
- bevel gear
- output shaft
- bolt dismantling
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Working Measures On Existing Buildindgs (AREA)
Abstract
The utility model relates to hardware tool field, specifically a kind of Bolt dismantling extension bar, including output shaft and input shaft, the output shaft and input shaft are cooperated by gear；Protective shell and check ring are equipped on the output shaft and input shaft；Output shaft is equipped with sleeve mounting head, fixing axle and output bevel gear wheel；The input shaft is equipped with input bevel gear, transmission shaft and input sleeve；The utility model by setting bevel gear cooperation make pneumatic impact spanner removal force change direction, some lesser bolts of the withdrawal space easy to disassemble, and by using the cooperation of bevel gear be extension bar transmitting it is more firm, be less likely to be damaged in extension bar use process；And the utility model holds fixation by setting protective shell when extension bar being allow to work, guarantee that extension bar is not fallen off when work.
Description
Technical field
The utility model relates to field, specifically a kind of Bolt dismantling extension bar.
Background technique
Threaded connection be it is a kind of it is widely used removably is fixedly connected, have structure is simple, connection reliably, assembly and disassembly side
Just the advantages that, the dismounting of bolt generallys use mutual disassembly's mode of spanner, ratchet spanner and sleeve at present, big with product
The shortcomings that production of scale, this artificial dismounting mode inefficiency, high labor cost, is exposed, and pneumatic impact spanner and electronic pulls
The appearance of hand greatly improves the efficiency of bolt installation and disassembly, and non-when pneumatic impact spanner and electric wrench demounting bolt
Chang Shengli, thus pneumatic impact spanner and electric wrench using very extensive.Due to, due to pneumatic impact spanner and electric wrench volume compared with
Greatly, the biggish bolt in some spaces can only be dismantled, but certain products consider properties of product in design, can only reduce bolt
Removable space, cause disassembly be not easy, market has developed a kind of universal joint sleeve, this joint boot in response to this
Cylinder changes transmission direction, and pneumatic impact spanner and electric wrench is allow to dismantle this bolt.
But current universal joint change angle is smaller, and due to unprotect device outside universal joint, in disassembly,
Operator can not help universal joint, and in disassembly, universal joint is easy to fall off, and universal joint on the market is mostly using pin
Hole cooperation, causes service life lower, is easily damaged.
Utility model content
It is mentioned above in the background art to solve the purpose of this utility model is to provide a kind of Bolt dismantling extension bar
Problem.
To achieve the above object, the utility model provides the following technical solutions:
A kind of Bolt dismantling extension bar, including output shaft and input shaft, the output shaft and input shaft are cooperated by gear；
Protective shell and check ring are equipped on the output shaft and input shaft；The protective shell is equipped with fixing screws；The output
The cooperation of axis and input shaft can change the torque direction of transfer of pneumatic impact spanner；The protective shell is provided with securing part
Effect, and when in use, protective shell is also used as handgrip part and guarantees not falling off when extension bar work.
As a further solution of the present invention: the output shaft is equipped with sleeve mounting head, fixing axle and output cone
Gear；The input shaft is equipped with input bevel gear, transmission shaft and input sleeve.
The sleeve mounting head is equipped with spring, steel ball and blind hole as a further solution of the present invention,；It is described
Spring, steel ball and matching for blind hole are combined into sleeve fixed mechanism, guarantee that sleeve will not fall off when assembling-disassembling bolt.
The big end modulus and pressure of the output bevel gear wheel and input bevel gear as a further solution of the present invention,
Power angle is equal.
As a further solution of the present invention: the protective shell includes main protection shell and secondary protective shell；The main guarantor
Protective case is equipped with output shaft fixing groove, fixed stop, input shaft fixing groove and screw mounting hole.
The secondary protective shell and main protection shell structure are symmetrical as a further solution of the present invention, and screw is pacified
It fills hole position and is equipped with screw thread.
As a further solution of the present invention: the protective shell is equipped with rubber ring；Ten are equipped in the rubber ring
Word locked bar；The rubber ring inner ring side length is less than the side length of cross locked bar；The cross locked bar, output bevel gear wheel and guarantor
The cooperation of protective case makes extension bar become spanner use.
Rubber ring is equipped on the main protection shell and secondary protective shell as a further solution of the present invention, to fix
Slot.
The centre of the output bevel gear wheel is equipped with cross recess as a further solution of the present invention,.
Compared with prior art, the utility model has the beneficial effects that
1, the utility model makes the removal force of pneumatic impact spanner have changed 90 ° by the cooperation of setting bevel gear, easy to disassemble
Some lesser bolts of the withdrawal space, and the cooperation of bevel gear is more firm, it is not easy to it damages.
2, the utility model holds fixation by setting protective shell when extension bar being allow to work, and guarantees to lengthen when work
Bar is not fallen off.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the Bolt dismantling extension bar embodiment 1.
Fig. 2 is a-quadrant enlarged drawing in embodiment 1 in the Bolt dismantling extension bar.
Fig. 3 is the axonometric drawing of main protection shell in the Bolt dismantling extension bar.
Fig. 4 is the axonometric drawing of output shaft in the Bolt dismantling extension bar.
Fig. 5 is the axonometric drawing of input shaft in the Bolt dismantling extension bar.
Fig. 6 is the cross-sectional view of embodiment 2 in the Bolt dismantling extension bar.
Fig. 7 is the shaft side figure of 2 cross locked bar of embodiment in the Bolt dismantling extension bar.
Fig. 8 is the shaft side figure of 2 rubber ring of embodiment in the Bolt dismantling extension bar.
Fig. 9 is the shaft side figure of 2 main protection shell of embodiment in the Bolt dismantling extension bar.
In figure: 1- output shaft, 2- input shaft, 3- protective shell, 4- fixing screws, 5- check ring, 6- rubber ring, 7- cross
Locked bar, 11- sleeve installation axle, 12- fixing axle, 13- output bevel gear wheel；111- spring, 112- steel ball, 113- blind hole, 21- cone
Gear, 22- transmission shaft, 23- input sleeve, 31- main protection shell, 32- pair protective shell, 311- output shaft fixing groove, 312- are fixed
Block, 313- input shaft fixing groove, 314- screw mounting hole, 315- rubber ring fixing groove.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment 1
Please refer to Fig. 1~5, in the utility model embodiment, a kind of screw disassembling extension bar, including output shaft 1, input shaft
2, protective shell 3, fixing screws 4 and check ring 5；The output shaft 1 is equipped with sleeve mounting head 11, fixing axle 12 and output
Bevel gear 13；The sleeve mounting head 11 is equipped with spring 111, steel ball 112 and blind hole 113；The input shaft 2 is equipped with defeated
Enter bevel gear 21, transmission shaft 22 and input sleeve 23；The big end modulus and pressure of the output bevel gear wheel 13 and input bevel gear 21
Power angle is equal；The protective shell 3 includes main protection shell 31 and secondary protective shell 32；The main protection shell 31 is solid equipped with output shaft
Determine slot 311, fixed stop 312, input shaft fixing groove 313 and screw mounting hole 314；The pair protective shell 32 and main protection shell 31
Symmetrical configuration, and 314 position of screw mounting hole is equipped with screw thread；
The sleeve mounting head 11 and the size and international standard 1/2,1/4 and 3/8 cun of pullover and sleeve for inputting sleeve 13
Size is consistent.
When this extension bar output shaft 1 is installed, the blind hole 113 of 1 steel ball size size is bored in sleeve mounting head 11, then
Spring 111 and steel ball 112 are sequentially loaded into blind hole 113, is then rushed using annular punching pin in blind hole oral area, blind hole is made to contract
Mouthful；
When extension bar is installed, successively output shaft 1, input shaft 2 are placed on output shaft fixing groove 311 on protective shell 31,
On fixed stop 312 and input shaft fixing groove 313, secondary protective shell 32 is covered, pre-tightens fixing screws 4.
In the present embodiment, the working principle of the Bolt dismantling extension bar is:
The driving angle of bevel gear is 90 °, so the extension bar can be with the torque of the transmitting pneumatic impact spanner of wide-angle.
In use, covering upper sleeve corresponding with bolt on lengthening rod sleeve mounting head 11, sleeve is covered in bolt after allowing
On, pneumatic impact spanner output shaft is put in input sleeve 23, starts pneumatic impact spanner, and starting spanner band driven input shaft 2 rotates, and passes through cone
Gear changes rotation direction, then output shaft 1 is driven to rotate, and the rotation of output shaft 1 just completes dismounting with the rotation of moving sleeve
The work of bolt.
Embodiment 2
Please refer to Fig. 4~8, in the utility model embodiment, a kind of Bolt dismantling extension bar, including output shaft 1, input shaft
2, protective shell 3, fixing screws 4；The 1 upper bush mounting head 11 of output shaft, fixing axle 12 and output bevel gear wheel 13；The sleeve
Mounting head 11 is equipped with spring 111, steel ball 112 and blind hole 113；The centre of the output bevel gear wheel 13 is equipped with cross recess；
The input shaft 2 is equipped with input bevel gear 21, transmission shaft 22 and input sleeve 13；The output bevel gear wheel 13 and input cone tooth
The big end modulus and pressure angle of wheel 21 are equal；The protective shell 3 includes main protection shell 31 and secondary protective shell 32；The main protection shell
31, which are equipped with output shaft fixing groove 311, fixed stop 312, input shaft fixing groove 313, screw mounting hole 314 and rubber ring, consolidates
Determine slot 315；The pair protective shell 32 and 31 symmetrical configuration of main protection shell, and 314 position of screw mounting hole is equipped with screw thread；
It should be noted that the size and international standard 1/2,1/4 and 3/8 of the sleeve mounting head 11 and input sleeve 13
Very little pullover is consistent with sleeve dimensions；The 6 inner ring side length of rubber ring is less than the side length of cross locked bar 7.
When this extension bar output shaft 1 is installed, the blind hole 113 of 1 steel ball size size is bored in sleeve mounting head 11, then
Spring 111 and steel ball 112 are sequentially loaded into blind hole 113, is then rushed using annular punching pin in blind hole oral area, blind hole is made to contract
Mouthful；
When extension bar is installed, successively output shaft 1, input shaft 2 are placed on output shaft fixing groove 311 on protective shell 31,
On fixed stop 312 and input shaft fixing groove 313, rubber ring 6 is packed into lockhole, covers secondary protective shell 32, pre-tightens fixing screws
4, it is finally inserted cross locked bar 7.
The working principle and embodiment 1 of the present embodiment are identical, the difference is that the present embodiment can be used as spanner use, when need
When being used as spanner, cross locked bar 7 is pressed into output shaft bevel gears 13, cross locked bar limits bevel gear rotation, this lengthening
Bar can be used as spanner；Since the side length of 6 inner ring of rubber ring is less than the side length of cross locked bar 7, as extension bar
In use, cross locked bar 7 will not be inserted into output bevel gear wheel 13.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And in the case where not departing from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein, and should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (9)
1. a kind of Bolt dismantling extension bar, including output shaft (1) and input shaft (2), the output shaft (1) and input shaft (2) are logical
Cross gear cooperation, which is characterized in that be equipped with protective shell (3) and check ring (5) on the output shaft (1) and input shaft (2)；
The protective shell (3) is equipped with fixing screws (4).
2. Bolt dismantling extension bar according to claim 1, which is characterized in that the output shaft (1) is pacified equipped with sleeve
Fill head (11), fixing axle (12) and output bevel gear wheel (13)；The input shaft (2) is equipped with input bevel gear (21), transmission shaft
(22) and sleeve (23) are inputted.
3. Bolt dismantling extension bar according to claim 2, which is characterized in that the sleeve mounting head (11) is equipped with bullet
Spring (111), steel ball (112) and blind hole (113).
4. Bolt dismantling extension bar according to claim 2, which is characterized in that the output bevel gear wheel (13) and input cone
The big end modulus and pressure angle of gear (21) are equal.
5. Bolt dismantling extension bar according to claim 1 to 4, which is characterized in that the protective shell (3) includes master
Protective shell (31) and secondary protective shell (32)；The main protection shell (31) is equipped with output shaft fixing groove (311), fixed stop
(312), input shaft fixing groove (313) and screw mounting hole (314).
6. Bolt dismantling extension bar according to claim 5, which is characterized in that the pair protective shell (32) and main protection shell
(31) symmetrical configuration, and screw mounting hole (314) position is equipped with screw thread.
7. Bolt dismantling extension bar according to claim 6, which is characterized in that the protective shell (3) is equipped with rubber ring
(6)；Cross locked bar (7) are equipped in the rubber ring (6)；Rubber ring (6) the inner ring side length is less than cross locked bar (7)
Side length.
8. Bolt dismantling extension bar according to claim 7, which is characterized in that the main protection shell (31) and secondary protective shell
(32) rubber ring fixing groove (315) are equipped on.
9. according to any Bolt dismantling extension bar of claim 2-4, which is characterized in that the output bevel gear wheel (13)
Centre is equipped with cross recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821647586.0U CN209289123U (en) | 2018-10-11 | 2018-10-11 | A kind of Bolt dismantling extension bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821647586.0U CN209289123U (en) | 2018-10-11 | 2018-10-11 | A kind of Bolt dismantling extension bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209289123U true CN209289123U (en) | 2019-08-23 |
Family
ID=67653983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821647586.0U Expired - Fee Related CN209289123U (en) | 2018-10-11 | 2018-10-11 | A kind of Bolt dismantling extension bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209289123U (en) |
-
2018
- 2018-10-11 CN CN201821647586.0U patent/CN209289123U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190823 |