CN205271860U - Prevent that axle changes from pressing from both sides tight linkage pincers - Google Patents
Prevent that axle changes from pressing from both sides tight linkage pincers Download PDFInfo
- Publication number
- CN205271860U CN205271860U CN201620027056.0U CN201620027056U CN205271860U CN 205271860 U CN205271860 U CN 205271860U CN 201620027056 U CN201620027056 U CN 201620027056U CN 205271860 U CN205271860 U CN 205271860U
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- clamping
- cylinder
- front clamp
- block
- handle
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- Withdrawn - After Issue
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- 210000000080 chela (arthropods) Anatomy 0.000 title claims abstract description 13
- 230000008878 coupling Effects 0.000 claims abstract description 9
- 238000010168 coupling process Methods 0.000 claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 claims abstract description 9
- 230000004323 axial length Effects 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 24
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 230000026683 transduction Effects 0.000 abstract description 3
- 238000010361 transduction Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a prevent that axle changes from pressing from both sides tight linkage pincers, including the preceding clamping mechanism that is used for clamp shaft, be used for pressing from both sides the back clamping mechanism of tight spiral shell dress at epaxial mounting, be equipped with between preceding clamping mechanism, the back clamping mechanism and connect both and make both can make one -way relative pivoted coupling mechanism, coupling mechanism can follow the axial and extend, its the biggest axial length who extends apart from be greater than the mounting. The utility model discloses a set up preceding clamping mechanism, back clamping mechanism, coupling mechanism, it can not the pivoted purpose to have realized dismantling epaxial mounting time axis, prevents that the axle transduction from sending the oil leak or even the internal connection line drops, convenient to use. The dismantlement finishes, rotates the handle and rolls out the draw -in groove with the pin, and under return spring's effect, supplementary handle is automatic to kick -back, realizes the not hard up of folder, can with the utility model discloses from epaxial lifting off, easy operation is convenient.
Description
Technical field
The utility model relates to a kind of anti-axle and turns from clamping linkage pincers.
Background technology
At present, using a large amount of oily plants in power equipment, oily plant leading-out piece such as sleeve pipe goes between axle, and the rotation of the axle that easily causes going between in the process removing its outside nut, the leakage of oil fault that even internal connection line comes off can occur time serious. It is therefore desirable to design a kind of nut dismounting instrument that can effectively prevent lead-in wire axle from rotating when removing nut.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of anti-axle preventing axle from rotating when dismantling axle upper fixing element and turns from clamping linkage pincers.
For solving the problems of the technologies described above, the utility model comprises the front clamp mechanism for clamping axle, for clamping the rear clamping mechanism of the mounting block that spiral shell is contained on axle, it is provided with between described front clamp mechanism, rear clamping mechanism and both are connected and makes both can do unidirectional connection mechanism in relative rotation, described connection mechanism can stretch vertically, and its maximum extension distance is greater than the axial length of mounting block.
Described front clamp mechanism comprises and being set in together and cylinder and front clamp urceolus in relatively turnable front clamp, in front clamp, cylinder is provided with at least two can along front clamp cylinder radially slide thus by the front clamp block of axis clamping, on front clamp urceolus, corresponding every block front clamp block is fixed with and can rotate to drive front clamp block to the front wheel driving voussoir of cylinder central slide in front clamp with front clamp urceolus, the front return spring for making front clamp block reset it is connected with between front clamp urceolus and front clamp block, in front clamp, cylinder is provided with the front clamp locking means that can make both relative lockings with front clamp urceolus, after described clamping mechanism comprise be set in together and relatively turnable after cylinder and rear clamping urceolus in clamping, in rear clamping, cylinder is provided with at least two can along rear clamping cylinder radially slide thus spiral shell is contained on axle mounting block clamping rear clamping block, rear clamping urceolus clamps after corresponding every block block be fixed with and can clamp urceolus subsequently and rotate and clamp, after driving, the rear drive voussoir that block clamps interior cylinder central slide backward, the rear return spring for clamping block reset after making it is connected with between rear clamping urceolus and rear clamping block, in rear clamping, cylinder is provided with the rear clamping locking means that can make both relative lockings with rear clamping urceolus.
The drive surface of described front wheel driving voussoir and the end face of front clamp block are the cambered surface matched; The drive surface of described rear drive voussoir and the end face of rear clamping block are the cambered surface matched.
Described connection mechanism comprise outer installation cylinder concentric with outer installation cylinder arrange interior installation cylinder, the web plate of end plate setting parallel with end plate that outer installation cylinder is fixedly connected with interior installation cylinder one end, the end that described web plate is packed in front clamp cylinder, described end plate and web plate correspondence are provided with organizes perforating more, often organize in perforating and wear stretch rod, the two ends of described stretch rod are respectively equipped with the locking head preventing stretch rod from deviating from from end plate or web plate, and the length of described stretch rod is greater than the axial length of axle upper fixing element; Described interior installation cylinder is rotatably connected to ratchet, described outer installation cylinder is provided with the check pawl of setting corresponding to ratchet, described ratchet is fixed with the concentric connection cylinder arranged with ratchet in rear clamping mechanism side, in the end of described connection cylinder and rear clamping, cylinder connects admittedly, described connection cylinder is fixedly connected with rear operation handle, operation handle before described web plate is connected with.
When described front clamp locking means comprises the front auxiliary handle being fixed on front clamp urceolus and described front auxiliary handle turns to front clamp block clamping axle, front auxiliary handle and front operation handle are in same plane, operate before described between handle and front auxiliary handle and it is provided with V-shaped return spring, operation handle is provided with before described current auxiliary handle and rotates the front coupling device making can be fixed on by front assist handle on front operation handle during front clamp block clamping axle.
Described front coupling device comprises spiral shell and is contained in the handle bottom front operation handle, be packed in front auxiliary handle turning direction toss about and its sidepiece offers the baffle plate of card groove, before described, operation handle is hollow structure, described handle is fixed with before being arranged in operation handle inner chamber and on stretch the vertical bar of setting, the top of described vertical bar be fixed with vertical with vertical bar arrange and its end stretch out before operation handle horizontal bar, before described, operation handle is offered for the chute that horizontal bar rotates with vertical bar, the end of described horizontal bar is fixed with the pin vertically arranging and can blocking into card groove, the top of described pin is fixed with can be close to the block of setting with baffle plate end face.
After described, clamping locking means is identical with the structure of front clamp locking means.
Adopting after said structure, the utility model is by arranging front clamp mechanism, clamp mechanism, connection mechanism afterwards, it is achieved that the object that during dismounting axle upper fixing element, axle can not rotate, prevent axle transduction cause leakage of oil even internal connection line come off, it may also be useful to convenient. dismantling complete, pin is produced card groove by swing handle, and under the effect of return spring, auxiliary handle automatic rebounding, it is achieved loosening of folder, can unload the utility model from axle, simple to operation. by the mounting block on rear clamping mechanism alignment axle during use, after rotating, auxiliary handle makes rear auxiliary handle go to be positioned at same plane with rear operation handle, rear auxiliary handle clamps urceolus and rotates after driving while rotating, rear drive voussoir is driven to rotate, the drive surface of rear drive voussoir clamps the center that rear clamping block clamps on the end face of block interior cylinder backward and promotes and then clamped by mounting block after acting on, then the handle bottom handle is operated after rotating, vertical bar is driven to rotate, horizontal bar is made to turn to the baffle plate place of rear auxiliary handle, pin card is made to enter in card groove, baffle plate is blocked by block, prevent rear auxiliary handle from rotating backward under the effect of return spring, the rear auxiliary handle of realization is fixedly connected with rear operation handle. the use step of front clamp mechanism is substantially identical with the use step of rear clamping mechanism, repeats no more. mounting block on axle and axle is clamped by front clamp mechanism and rear clamping mechanism respectively, operation handle before now catching on the other hand, and another hand operates handle after rotating and dismantled by mounting block, prevents on dismounting mounting block, axle concomitant rotation. owing to the check pawl for ratchet carries out non-return can axially stretch and which is provided with in connection mechanism, rear operation handle can only rotate along a direction, operates handle and rotates voluntarily, and clamp mechanism after ensureing and can slide axially and then taken off by mounting block after preventing.
Accompanying drawing explanation
Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation that Fig. 1 analyses and observe along line A-A.
Embodiment
As depicted in figs. 1 and 2, anti-axle turn comprise front clamp mechanism for clamping axle from clamping linkage pincers, for clamping the rear clamping mechanism of the mounting block that spiral shell is contained on axle, it is provided with between front clamp mechanism, rear clamping mechanism and both are connected and makes both can do unidirectional connection mechanism in relative rotation, connection mechanism can stretch vertically, and its maximum extension distance is greater than the axial length of mounting block.
In the utility model, front clamp mechanism comprises and being set in together and cylinder 1 and front clamp urceolus 2 in relatively turnable front clamp, both being rotationally connected is realized in both ends by installing bearing between cylinder 1 and front clamp urceolus 2 in front clamp, be periphery in the middle part of cylinder 1 in front clamp be provided with three can along front clamp cylinder 1 radially slide thus by the front clamp block 3 of axis clamping, the inner extending end of front clamp block 3 stretches out cylinder 1 and its end in front clamp and is provided with fastening teeth, on front clamp urceolus 2, corresponding every block front clamp block 3 is fixed with the front wheel driving voussoir 4 that can rotate to drive front clamp block 3 to cylinder in front clamp 1 central slide with front clamp urceolus 2, the drive surface of front wheel driving voussoir 4 and the end face of front clamp block 3 are the cambered surface matched, the width of front wheel driving voussoir 4 radial direction in rotational direction increases gradually, when front clamp urceolus 2 rotates under the driving of front auxiliary handle, front wheel driving voussoir 4 is gradually by the central slide of front clamp block 3 to cylinder in front clamp 1, thus make front clamp block 3 by axis clamping, the front return spring 26 for making front clamp block 3 automatically reset it is connected with between front clamp urceolus 2 and front clamp block 3, in front clamp, cylinder 1 is provided with the front clamp locking means that can make both relative lockings with front clamp urceolus 2, rear clamping mechanism comprise be set in together and relatively turnable after cylinder 11 and rear clamping urceolus 21 in clamping, both being rotationally connected is realized in both ends by installing bearing between cylinder 11 and rear clamping urceolus 21 in rear clamping, be periphery in the middle part of cylinder 11 in rear clamping be provided with three can along rear clamping cylinder 11 radially slide thus spiral shell is contained on axle mounting block clamping rear clamping block 31, the inner extending end of rear clamping block 31 clamps interior cylinder 11 after stretching out and its end is provided with fastening teeth, rear clamping urceolus 21 clamps after corresponding every block block 31 be fixed with can clamp subsequently after urceolus 21 rotates to drive and clamp the rear drive voussoir 41 that block 31 clamp interior cylinder 11 central slide backward, the drive surface of rear drive voussoir 41 and the end face of rear clamping block 31 are the cambered surface matched, rear drive voussoir 41 is identical with the structure of front clamp block 3 with front wheel driving voussoir 4 with the structure of rear clamping block 31, do not repeat them here, the rear return spring 36 automatically resetted for clamping block 31 after making it is connected with between rear clamping urceolus 21 and rear clamping block 31, in rear clamping, cylinder 11 is provided with the rear clamping locking means that can make both relative lockings with rear clamping urceolus 21.
In the utility model connection mechanism comprise outer installation cylinder 5 concentric with outer installation cylinder arrange interior installation cylinder 6, the web plate 8 of end plate 7 setting parallel with end plate 7 that outer installation cylinder 5 is fixedly connected with interior installation cylinder 6 one end, the end that web plate 8 is packed in front clamp cylinder 1, end plate 7 and web plate 8 correspondence are provided with organizes perforating more, often organize in perforating and wear stretch rod 9, the two ends of stretch rod 9 are respectively equipped with the locking head 10 preventing stretch rod 9 from deviating from from end plate 7 or web plate 8, and the length of stretch rod 9 is greater than the axial length of axle upper fixing element; Interior installation cylinder 6 is rotatably connected to ratchet 12 by bearing, outer installation cylinder 5 is provided with the check pawl 13 of setting corresponding to ratchet 12, ratchet 12 is fixed with the concentric connection cylinder 14 arranged with ratchet 12 in rear clamping mechanism side, connect cylinder 11 in the end of cylinder 14 and rear clamping admittedly to connect, connect cylinder 14 to be fixedly connected with rear operation handle 15, operation handle 16 before web plate 8 is connected with. For when preventing stretch rod 9 from axially sliding and ratchet 12 collide; affect the rotation of ratchet 12; installation cylinder 5 and interior installation cylinder 6 arrange the backplate 42 being provided with certain axial distance with end plate 7 near end plate 7 end outside; outside surface and outer installation cylinder 5 internal surface of backplate 42 connect admittedly, the internal surface of backplate 42 and the outside surface of interior installation cylinder 6 connect admittedly, it is achieved to the protection of ratchet 12.
Front clamp locking means comprises the front auxiliary handle 17 being fixed on front clamp urceolus 2 and described front auxiliary handle 17 turns to when front clamp block 3 clamps axle front auxiliary handle 17 with front operation handle 16 in same plane, it is provided with V-shaped return spring 43 between front operation handle 16 and front auxiliary handle 17, front operation handle 16 is provided with current auxiliary handle 17 and rotates the front coupling device front assist handle can being fixed on when making front clamp block 3 clamp axle on front operation handle 16. front coupling device comprises spiral shell and is contained in the handle 20 bottom front operation handle 16, be packed in front auxiliary handle 17 turning direction toss about and its sidepiece offers the baffle plate 18 of card groove 19, front operation handle 16 is hollow structure, handle 20 is fixed with before being arranged in operation handle 16 inner chamber and on stretch the vertical bar 22 of setting, the top of vertical bar 22 is fixed with setting vertical with vertical bar 22 and the front horizontal bar 23 operating handle 16 is stretched out in its end, front operation handle 16 is offered for the chute that horizontal bar 23 rotates with vertical bar 22, the end of horizontal bar 23 is fixed with vertically to arrange can block the pin 24 into card groove 19, the top of pin 24 is fixed with can be close to the block 25 of setting with baffle plate 18 end face. rear clamping locking means is identical with the structure of front clamp locking means, does not repeat them here.
By the mounting block on rear clamping mechanism alignment axle during use, after rotating, auxiliary handle 45 makes rear auxiliary handle 45 go to be positioned at same plane with rear operation handle 15, rear auxiliary handle clamps urceolus 21 after driving while rotating and rotates, rear drive voussoir 41 is driven to rotate, the drive surface of rear drive voussoir 41 clamps cylinder 11 in being clamped backward by rear clamping block 31 on the end face of block 31 center after acting on promotes and then is clamped by mounting block, then the handle 20 bottom handle 15 is operated after rotating, vertical bar 22 is driven to rotate, horizontal bar 23 is made to turn to baffle plate 18 place of rear auxiliary handle, make in pin 24 card groove, baffle plate 18 is blocked by block, prevent rear auxiliary handle from rotating backward under the effect of return spring, the rear auxiliary handle of realization is fixedly connected with rear operation handle 15. the use step of front clamp mechanism is substantially identical with the use step of rear clamping mechanism, repeats no more. mounting block on axle and axle is clamped by front clamp mechanism and rear clamping mechanism respectively, operation handle 16 before now catching on the other hand, and another hand operates handle 15 after rotating and dismantled by mounting block, prevents on dismounting mounting block, axle concomitant rotation. owing to the check pawl 13 for ratchet 12 carries out non-return can axially stretch and which is provided with in connection mechanism, rear operation handle 15 can only rotate along a direction, operate handle 15 after preventing to rotate voluntarily, and clamp mechanism after ensureing and can slide axially and then mounting block is taken off. the utility model is by arranging front clamp mechanism, clamp mechanism, connection mechanism afterwards, it is achieved that the object that during dismounting axle upper fixing element, axle can not rotate, prevent axle transduction cause leakage of oil even internal connection line come off, it may also be useful to convenient. dismantling complete, pin 24 is produced card groove by swing handle 20, and under the effect of return spring, auxiliary handle automatic rebounding, it is achieved loosening of folder, can unload the utility model from axle, simple to operation.
The foregoing is only preferred embodiment of the present utility model, it is not limited to the utility model. The utility model has been described in detail by previous embodiment, and for a person skilled in the art, the technical scheme described in foregoing embodiments still can be modified by it, or wherein part technology feature carries out equivalent replacement. In every case, within invention design scope of the present utility model, any amendment of making, equivalent replacement, improvement etc., be all included within protection domain of the present utility model.
Claims (7)
1. an anti-axle turns from clamping linkage pincers, it is characterized in that it comprise the front clamp mechanism for clamping axle, for clamping the rear clamping mechanism of the mounting block that spiral shell is contained on axle, it is provided with between described front clamp mechanism, rear clamping mechanism and both are connected and makes both can do unidirectional connection mechanism in relative rotation, described connection mechanism can stretch vertically, and its maximum extension distance is greater than the axial length of mounting block.
2. anti-axle according to claim 1 turns from clamping linkage pincers, it is characterized in that described front clamp mechanism comprises to be set in together and cylinder (1) and front clamp urceolus (2) in relatively turnable front clamp, in front clamp, cylinder (1) is provided with at least two can along front clamp cylinder (1) radially slide thus by the front clamp block (3) of axis clamping, upper corresponding every block front clamp block (3) of front clamp urceolus (2) is fixed with and can rotate to drive the front wheel driving voussoir (4) of front clamp block (3) to cylinder in front clamp (1) central slide with front clamp urceolus (2), the front return spring (26) for making front clamp block (3) reset it is connected with between front clamp urceolus (2) and front clamp block (3), in front clamp, cylinder (1) is provided with the front clamp locking means that can make both relative lockings with front clamp urceolus (2), after described clamping mechanism comprise be set in together and relatively turnable after cylinder (11) and rear clamping urceolus (21) in clamping, in rear clamping, cylinder (11) is provided with at least two can along rear clamping cylinder (11) radially slide thus spiral shell is contained on axle mounting block clamping rear clamping block (31), clamp block (31) after the upper corresponding every block of rear clamping urceolus (21) to be fixed with and can clamp urceolus (21) subsequently and rotate and clamp, after driving, the rear drive voussoir (41) that block (31) clamp interior cylinder (11) central slide backward, the rear return spring resetted for clamping block (31) after making it is connected with between rear clamping urceolus (21) and rear clamping block (31), in rear clamping, cylinder (11) is provided with the rear clamping locking means that can make both relative lockings with rear clamping urceolus (21).
3. anti-axle according to claim 2 turns from clamping linkage pincers, it is characterized in that the end face of the drive surface of described front wheel driving voussoir (4) and front clamp block (3) is the cambered surface matched; The drive surface of described rear drive voussoir (41) and the end face of rear clamping block (31) are the cambered surface matched.
4. anti-axle according to Claims 2 or 3 turns from clamping linkage pincers, it is characterized in that described connection mechanism comprises outer installation cylinder (5), with outer installation cylinder is concentric arrange in cylinder (6) is installed, by the end plate (7) that outer installation cylinder (5) is fixedly connected with interior installation cylinder (6) one end, the web plate (8) of setting parallel with end plate (7), the end that described web plate (8) is packed in front clamp cylinder (1), described end plate (7) and web plate (8) correspondence are provided with organizes perforating more, often organize in perforating and wear stretch rod (9), the two ends of described stretch rod (9) are respectively equipped with the locking head preventing stretch rod (9) from deviating from from end plate (7) or web plate (8), the length of described stretch rod (9) is greater than the axial length of axle upper fixing element, described interior installation cylinder (6) is rotatably connected to ratchet (12), described outer installation cylinder (5) is provided with the check pawl (13) of setting corresponding to ratchet (12), described ratchet (12) is fixed with and the connection cylinder (14) of the concentric setting of ratchet (12) in rear clamping mechanism side, in the end of described connection cylinder (14) and rear clamping, cylinder (11) connects admittedly, described connection cylinder (14) is fixedly connected with rear operation handle (15), operation handle (16) before described web plate (8) is connected with.
5. anti-axle according to claim 4 turns from clamping linkage pincers, when it is characterized in that described front clamp locking means comprises the front auxiliary handle being fixed on front clamp urceolus (2) and described front auxiliary handle (17) turns to front clamp block (3) clamping axle front auxiliary handle (17) with front operation handle (16) in same plane, it is provided with V-shaped return spring between operation handle (16) and front auxiliary handle (17) before described, operation handle (16) is provided with before described current auxiliary handle (17) and rotates the front coupling device making can be fixed on by front assist handle on front operation handle (16) during front clamp block (3) clamping axle.
6. anti-axle according to claim 5 turns from clamping linkage pincers, it is characterized in that described front coupling device comprises the handle (20) operating handle (16) bottom before spiral shell is contained in, be packed in front auxiliary handle (17) turning direction toss about and its sidepiece offers the baffle plate (18) of card groove (19), before described, operation handle (16) is hollow structure, described handle (20) is fixed with before being arranged in operation handle (16) inner chamber and on stretch the vertical bar (22) of setting, the top of described vertical bar (22) is fixed with setting vertical with vertical bar (22) and the front horizontal bar (23) operating handle (16) is stretched out in its end, operation handle (16) is offered for the chute that horizontal bar (23) rotates with vertical bar (22) before described, the end of described horizontal bar (23) is fixed with the pin (24) vertically arranging and can blocking into card groove, the top of described pin (24) is fixed with can be close to the block (25) of setting with baffle plate (18) end face.
7. anti-axle according to claim 5 turns from clamping linkage pincers, it is characterized in that described rear clamping locking means is identical with the structure of front clamp locking means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620027056.0U CN205271860U (en) | 2016-01-13 | 2016-01-13 | Prevent that axle changes from pressing from both sides tight linkage pincers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620027056.0U CN205271860U (en) | 2016-01-13 | 2016-01-13 | Prevent that axle changes from pressing from both sides tight linkage pincers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205271860U true CN205271860U (en) | 2016-06-01 |
Family
ID=56056477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620027056.0U Withdrawn - After Issue CN205271860U (en) | 2016-01-13 | 2016-01-13 | Prevent that axle changes from pressing from both sides tight linkage pincers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205271860U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458990A (en) * | 2016-01-13 | 2016-04-06 | 国网山东省电力公司潍坊供电公司 | Self-clamping linkage clamp capable of preventing shaft rotation |
| CN107009309A (en) * | 2017-06-06 | 2017-08-04 | 江西电力职业技术学院 | Porcelain bottle insulators spanner and porcelain bottle insulators dismounting external member |
| CN108581905A (en) * | 2018-07-28 | 2018-09-28 | 广西科技大学 | A kind of change size Polygonal wrench |
| CN113442086A (en) * | 2021-05-31 | 2021-09-28 | 常州工学院 | Double-layer reverse driving wrench |
-
2016
- 2016-01-13 CN CN201620027056.0U patent/CN205271860U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458990A (en) * | 2016-01-13 | 2016-04-06 | 国网山东省电力公司潍坊供电公司 | Self-clamping linkage clamp capable of preventing shaft rotation |
| CN105458990B (en) * | 2016-01-13 | 2017-05-03 | 国网山东省电力公司潍坊供电公司 | Self-clamping linkage clamp capable of preventing shaft rotation |
| CN107009309A (en) * | 2017-06-06 | 2017-08-04 | 江西电力职业技术学院 | Porcelain bottle insulators spanner and porcelain bottle insulators dismounting external member |
| CN107009309B (en) * | 2017-06-06 | 2019-03-15 | 江西电力职业技术学院 | Porcelain bottle insulators spanner and porcelain bottle insulators dismount external member |
| CN108581905A (en) * | 2018-07-28 | 2018-09-28 | 广西科技大学 | A kind of change size Polygonal wrench |
| CN113442086A (en) * | 2021-05-31 | 2021-09-28 | 常州工学院 | Double-layer reverse driving wrench |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160601 Effective date of abandoning: 20170503 |
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| AV01 | Patent right actively abandoned |