CN201030530Y - Spanner slip-preventing structure - Google Patents
Spanner slip-preventing structure Download PDFInfo
- Publication number
- CN201030530Y CN201030530Y CNU2007201408259U CN200720140825U CN201030530Y CN 201030530 Y CN201030530 Y CN 201030530Y CN U2007201408259 U CNU2007201408259 U CN U2007201408259U CN 200720140825 U CN200720140825 U CN 200720140825U CN 201030530 Y CN201030530 Y CN 201030530Y
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- China
- Prior art keywords
- bit slice
- limit bit
- lower limit
- wrench body
- axostylus axostyle
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Abstract
The utility model provides a spanner anti-slip structure comprises a spanner body, a sheathed portion formed on at least one end of two ends of the spanner body , a sheathed opening or a sheathed aperture on the sheathed portion separately, and a stop element which is arranged near the sheathed opening or the sheathed aperture of the sheathed portion, wherein the stop element comprises a shaft rod, an upper banking stop and a lower banking stop, and an up-down penetrated shaft aperture of the stop element is formed on the sheathed portion of the spanner body, then the shaft rod is penetrated and pivoted on the shaft aperture, further the upper and lower banking stops are fixed on a projection of the two ends of the shaft rod out of two sides of the spanner body, thereby the upper and lower banking stops are fixedly arranged on two ends of the shaft rod and are moved with the shaft rod synchronously. The upper and lower banking stops are inserted into the scope of the sheathed opening or the sheathed aperture through the upper side edge and the lower side edge of the spanner body separately, or the upper and lower banking stops are away from the scope of the sheathed opening or the sheathed aperture. The utility model has the effect of anti-slip and easy operation.
Description
Technical field
The utility model relates to hand tools, relates in particular to a kind of with the anti-slip structure of spanner anti-slip and the easy operating effect.
Background technology
Generally be used to dismantle or the open-end wrench of lock nut and double offset ring spanner etc., mainly be fit opening or the nested nut of register hole that utilizes wrench body two ends fit portion, and then the application of force is rotated, because this two classes spanner is to be long segment, therefore its thickness of stinging the nut of pulling only has about 6mm to 12mm approximately, when the user in order to dismantle or lock nut, and application of force when rotation slightly up or down, spanner very easily produces up or down an active force, make spanner and nut slippage, so not only can influence the carrying out of operation element, and slightly one accidentally promptly may be because of the phenomenon that gets loose suddenly, cause hand to collide peripheral part, the accident that meets accident most probably and injury.
Therefore in order to solve the slippage problem of conventional spanner, developed multiple anti-slip structure on the market, as No. the 333113rd, TaiWan, China patent announcement, announce No. 483359 and announce No. 488355 etc., these all provide the project organization that tool prevents spanner slippage in operating process in preceding patent case, but be subjected to structural design and do not attain perfect influence, when spanner desires to change face when operation (also locking change into loosen etc.), during its desire conversion spacer, need earlier outstanding originally spacer to be regained, behind the spanner turn-over, again the spacer of other side is released, therefore in operation, need through the multiple tracks formality, invisible puzzlement and inconvenience that promptly increases its when operation so be necessary to do further improvement, makes its operation can be more easy.
In view of this, the utility model creator is at the problem that anti-slip structure the faced further investigation of aforementioned spanner, and actively seek the scheme that solves, by being engaged in related industry research and development and manufacturing experience for many years, and through the long-term endeavour research and development, finally successful design goes out the anti-slip structure of a kind of spanner, needs the inconvenient defective of multistage operation to overcome existing spanner.
The utility model content
Main purpose of the present utility model is to overcome the above-mentioned shortcoming that existing product exists, and provides a kind of spanner anti-slip structure, can effectively reach the effect of anti-slip and easy operating.
The purpose of this utility model is realized by following technical scheme.
The anti-slip structure of the utility model spanner, it includes a wrench body; It is characterized in that at least one end is formed with a fit portion in the described wrench body two ends, fit portion has fit opening or register hole respectively; One stopper unit, it is located at contiguous fit opening of each fit portion or register hole place, this stopper unit includes an axostylus axostyle, one upper limit bit slice reaches banking stop, and stopper unit is to be formed with an axis hole that runs through up and down in wrench body fit portion, axostylus axostyle is worn pivot on this axis hole, the wrench body two sides are protruded at the axostylus axostyle two ends, keep supplying, the lower limit bit slice sets firmly, make, the lower limit bit slice is installed in the axostylus axostyle two ends and is the synchronization action shape, the bound bit slice is stretched in the scope of fit opening or register hole by the last lateral margin and the lower lip of wrench body respectively, or all is and leaves fit opening or register hole scope shape.Thus, constitute a kind of with the anti-slip structure of spanner anti-slip and the easy operating effect.
The anti-slip structure of aforesaid spanner, wherein the two ends of the axostylus axostyle of stopper unit protrusion wrench body are formed with an inlay card section respectively, and described upper and lower limit bit slice is formed with the embedding hole of a correspondence, and this upper and lower limit bit slice is installed on the axostylus axostyle and synchronously and rotates; The axostylus axostyle two ends inlay card section of described stopper unit is the grinding tooth shape, and the embedding hole of upper and lower limit bit slice also is corresponding grinding tooth shape; The axostylus axostyle two ends inlay card section of described stopper unit is to be cerioid, and the embedding hole of upper and lower limit bit slice also is corresponding cerioid.
The anti-slip structure of aforesaid spanner, wherein the axostylus axostyle two ends end face of stopper unit is formed with a screw respectively, for utilizing locking part to be locked in after passing pad on the axostylus axostyle respectively, with the pin upper and lower limit bit slice of pulling.
The anti-slip structure of aforesaid spanner, wherein the periphery of the axostylus axostyle two ends of stopper unit protrusion upper and lower limit bit slice is formed with a catching groove respectively, detains the upper and lower limit bit slice of pulling for utilizing a C font button respectively.
The anti-slip structure of aforesaid spanner, wherein the axostylus axostyle of stopper unit is formed up to rare one annular groove in the axis hole scope, is embedded a glue ring in the annular groove, makes the relative axis hole of axostylus axostyle produce damping, and is moving to avoid any pivot of upper and lower limit bit slice.
The anti-slip structure of aforesaid spanner, wherein stopper unit is formed with an embedding hole in the appropriate location, fit portion two sides of wrench body, be respectively equipped with a positioning bead group in the embedding hole, the upper and lower limit bit slice is formed with several locating holes on corresponding surface, keeps supplying, the lower limit bit slice giving prominence to, folding and both all fold time location.
The anti-slip structure of aforesaid spanner, wherein stopper unit is formed with a larger-diameter set section at axis hole one end of wrench body, upper limit bit slice is integrally formed in axle end, and axostylus axostyle end in addition is formed with a polygonal inlay card section, the lower limit bit slice also is formed with corresponding cerioid embedding hole, the set section of axis hole is provided with a compression spring of shoring upper limit bit slice, makes to be formed with a gap between upper limit bit slice and wrench body.
The anti-slip structure of aforesaid spanner, wherein stopper unit is formed with spacing salient point respectively on the surface of the corresponding wrench body of upper and lower limit bit slice, wrench body is formed with corresponding limited impression respectively at the fit opening or the register hole place of vicinity fit portion, keep supplying, locate when the outstanding fit opening of lower limit bit slice rotation or register hole, or the upper and lower limit bit slice is located when all leaving fit opening or register hole.
The anti-slip structure of aforesaid spanner, wherein stopper unit is formed with a spacing salient point respectively on the surface of the corresponding wrench body of upper and lower limit bit slice, the limited impression that wrench body is formed with three correspondences respectively at the fit opening or the register hole place of vicinity fit portion, keep supplying, locate when the outstanding fit opening of lower limit bit slice rotation or register hole, or the upper and lower limit bit slice is located when all leaving fit opening or register hole.
The anti-slip structure of aforesaid spanner, wherein stopper unit is formed with a spacing salient point on the surface of upper limit bit slice or the corresponding wrench body of lower limit bit slice, the limited impression that the spacing salient point of corresponding upper limit bit slice of wrench body or lower limit bit slice is formed with four correspondences at the fit opening or the register hole place of vicinity fit portion, keep supplying, locate when the outstanding fit opening of lower limit bit slice rotation or register hole, or the upper and lower limit bit slice is located when all leaving fit opening or register hole.
The beneficial effect of the anti-slip structure of the utility model spanner comprises: a wrench body, and at least one end is formed with a fit portion in its two ends, and fit portion has fit opening or register hole respectively; One stopper unit, it is provided in a side of contiguous fit opening of each fit portion or register hole place, this stopper unit includes an axostylus axostyle, one upper limit bit slice reaches banking stop, and stopper unit is to be formed with an axis hole that runs through up and down in wrench body fit portion, axostylus axostyle is then worn pivot on this axis hole, the wrench body two sides are protruded at the axostylus axostyle two ends, for on aforementioned, the lower limit bit slice sets firmly, allow, the lower limit bit slice can be installed in the axostylus axostyle two ends, and be the synchronization action shape, go up again, the lower limit bit slice can be respectively stretched in the scope of fit opening or register hole by the last lateral margin and the lower lip of wrench body, or all is and does not stretch out shape; Thus, specific implementation by above-mentioned technological means, allow the utility model spanner when rotating screw cap, the user can make outstanding respectively fit opening of bound bit slice or register hole according to rotation and application of force direction, and subsides are against the nut upper limb, thereby generation position-limiting action, preventing spanner arbitrarily slippage in operating process, but and because bound bit slice synchronization action, the convenience of its operation can be increased, further can increase its surcharge, to promote the competitiveness and the economic benefit of product.
Description of drawings:
Fig. 1 is the utility model spanner structure schematic appearance.
Fig. 2 is the utility model spanner stereochemical structure decomposing schematic representation.
Fig. 3 is the utility model spanner structure sectional schematic diagram.
Fig. 4 is the anti-slip structure first action schematic diagram of the utility model spanner, and upper limit bit slice standing shape attitude is described.
Fig. 5 is the anti-slip structure second action schematic diagram of the utility model spanner, and lower limit bit slice standing shape attitude is described.
Fig. 6 is anti-slip structure the 3rd action schematic diagram of the utility model spanner, and upper and lower limit bit slice collapse state is described.
Fig. 7 is another embodiment stereochemical structure decomposing schematic representation of the utility model spanner.
Fig. 8 is the another embodiment stereochemical structure of a utility model spanner decomposing schematic representation.
Fig. 9 is the utility model spanner embodiment stereochemical structure decomposing schematic representation again.
Fig. 9 A is an embedding hole shown in Figure 9 position structure enlarged diagram.
Figure 10 is a partial structurtes generalized section shown in Figure 9.
Major label description in figure: 10 wrench body, 11 fit portions, 12 fit openings, 15 fit portions, 16 register holes, 20 stopper unit, 21 axis holes, 210 set sections, 22 axostylus axostyles, 220 inlay card sections, 221 screws, 222 annular grooves, 223 inlay card sections, 23 locking parts, 230 pads, 24A upper limit bit slice, 24B lower limit bit slice, 240 embedding holes, 241 embedding holes, 242 locating holes, 243 spacing salient points, 244 limited impressions, 25 catching grooves, 26 glue rings, 27 is C font button, 28 embedding holes, 29 positioning bead groups, 30 compression springs, 35 gaps.
The specific embodiment
The anti-slip structure of the utility model spanner, as shown in Figure 1 and Figure 2, the anti-slip structure of this spanner includes a wrench body 10 and at least one stopper unit 20; Wherein, at least one end is formed with a fit portion 11,15 in wrench body 10 two ends, fit portion 11,15 has fit opening 12 or cerioid register hole 16 respectively, and for the embedding corresponding nut of pulling, stopper unit 20 correspondences are located at each fit portion 11,15 contiguous fit opening 12 or register hole 16 place.
The detailed formation of the utility model preferred embodiment, consult Fig. 1, Fig. 2 and shown in Figure 3, this stopper unit 20 includes an axostylus axostyle 22, one upper limit bit slice 24A reaches banking stop 24B, and stopper unit 20 is in wrench body 10 fit portions 11, be formed with on one on 15, the axis hole 21 that runs through down, axostylus axostyle 22 is worn pivot on this axis hole 21, and wrench body 10 two sides are protruded at axostylus axostyle 22 two ends, for aforementioned bound bit slice 24A, 24B sets firmly, it is formed with an inlay card section 220 respectively at the two ends that axostylus axostyle 22 protrudes wrench body 10, it is embodiment that the utility model adopts serial grinding tooth, and bound bit slice 24A, 24B then is formed with the embedding hole 240 of a correspondence, allow bound bit slice 24A, 24B can be mounted in axostylus axostyle 22 two ends, and is the synchronization action state; Again, in the scope that bound bit slice 24A, 24B can be respectively stretch into fit opening 12 or register hole 16 by the last lateral margin and the lower lip of wrench body 10 (as Fig. 4, shown in Figure 5), or all be and do not stretch out shape (as shown in Figure 6), when outstanding respectively fit opening 12 of upper and lower limit bit slice 24A, 24B or register hole 16, can be against the nut upper limb for pasting, reach anti-slip purpose; Moreover axostylus axostyle 22 two ends end faces are formed with a screw 221 respectively, for utilizing locking part 23 to be locked in after passing pad 230 on the axostylus axostyle 22 respectively, for lock pull bound bit slice 24A, 24B; Thus, constitute the anti-slip structure of a kind of spanner with anti-slip and easy operating.
The practice and the practical value of the anti-slip structure of the utility model spanner, consult Fig. 1, Fig. 3 and shown in Figure 4, utilize the fit portion 11 of wrench body 10 when user's desire, 15 fit opening 12 or register hole 16 come rotary nut to tighten or during loosening up, only need the upper limit bit slice 24A or the lower limit bit slice 24B of stopper unit 20 correspondences are released fit opening 12 or register hole 16, and after fit opening 12 or register hole 16 are entrenched in nut, can make this upper limit bit slice 24A or lower limit bit slice 24B paste and be against the nut upper limb, like this, when rotating screw cap, can reach the purpose that prevents slippage; Otherwise, when user's desire changes rotation direction, only former outstanding upper limit bit slice 24A or lower limit bit slice 24B inwardly need be pushed back, it is folded in fit portion 11,15, the in addition lower limit bit slice 24B of side or effect that upper limit bit slice 24A can be subjected to axostylus axostyle 22 and rotate synchronously, and then protrude in the scope of fit opening 12 or register hole 16 (as shown in Figure 5), effectively overcoming existing spanner need push back earlier, turn-over, the inconvenience of releasing another banking stop at last again and puzzlement defective reach the purpose of promoting ease of use then.
When the upper limit bit slice 24A that need not use stopper unit 20 or lower limit bit slice 24B carry out when anti-slip, then rotatable arbitrary upper limit bit slice 24A or lower limit bit slice 24B, both are all folded in the fit portion 11,15 of wrench body 10, and do not stretch into fit opening 12 or register hole 16 (as shown in Figure 6), so that the user adjusts on demand.
Another embodiment of the present utility model, it as shown in Figure 7, axostylus axostyle 22 two ends of stopper unit 20 are formed with polygonal inlay card section 223 respectively, and upper and lower limit bit slice 24A, 24B also form corresponding cerioid embedding hole 241, go up and synchronization action at axostylus axostyle (22) but upper and lower limit bit slice 24A, 24B embedding are pulled; Again, axostylus axostyle 22 is formed up to rare one annular groove 222 in wrench body 10 axis holes 21 scopes, can be embedded a glue ring 26 in the annular groove 222, to allow axostylus axostyle 22 relative axis holes 21 produce damping, avoids upper and lower limit bit slice 24A, any pivot of 24B to move; Moreover axostylus axostyle 22 protrusion upper limit bit slice 24A are formed with catching groove 25 respectively with the two ends of lower limit bit slice 24B, for utilizing C font button 27 to detain pull upper and lower limit bit slice 24A, 24B.
Consult shown in Figure 8ly, be another embodiment of the present utility model, stopper unit 20 is formed with an embedding hole 28 in the appropriate location, fit portion 11,15 two sides of wrench body 10, is respectively equipped with a positioning bead group 29 in each embedding hole 28; Again, upper and lower limit bit slice 24A, 24B are formed with several locating holes 242 on corresponding surface, keep supplying banking stop 24A or lower limit bit slice 24B and are giving prominence to, folding and the usefulness of both location when all folding.
Consult Fig. 9, Fig. 9 A, shown in Figure 10, it is an embodiment more of the present utility model, wherein, stopper unit 20 is formed with a larger-diameter set section 210 at axis hole 21 1 ends of wrench body 10, and upper limit bit slice 24A is integrally formed in axostylus axostyle 22 ends, and axostylus axostyle 22 end in addition is formed with a polygonal inlay card section 220, and lower limit bit slice 24B also is formed with corresponding cerioid embedding hole 240, allow have upper limit bit slice 24A axostylus axostyle 22 can with lower limit bit slice 24B riveted; Again, the surface of the corresponding wrench body 10 of upper and lower limit bit slice 24A, 24B is formed with a spacing salient point 243 respectively, and the limited impression 244 that wrench body 10 is formed with three correspondences respectively at the fit opening 12 or register hole 16 places of vicinity fit portion 11,15, during for outstanding fit opening 12 of upper and lower limit bit slice 24A, 24B rotation or register hole 16, or all be the usefulness of locating when not stretching out shape; Moreover the set section 210 of axis hole 21 is provided with a compression spring 30 of shoring upper limit bit slice 24A, makes 10 of upper limit bit slice 24A and wrench body be formed with a gap 35, and it can reach aforesaid advantage and practical value equally.
To sum up, the utility model not only can solve problem and the shortcoming that existing spanner exists, in constructed field, do not see identical or approximate product public use, promoted effect simultaneously, so, the utility model meets the important document of the relevant novelty of utility model patent, creativeness and practicality, files an application in accordance with the law.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (12)
1. anti-slip structure of spanner, it includes a wrench body; It is characterized in that at least one end is formed with a fit portion in the described wrench body two ends, fit portion has fit opening or register hole respectively; One stopper unit, it is located at contiguous fit opening of each fit portion or register hole place, this stopper unit includes an axostylus axostyle, one upper limit bit slice reaches banking stop, and stopper unit is to be formed with an axis hole that runs through up and down in wrench body fit portion, axostylus axostyle is worn pivot on this axis hole, the wrench body two sides are protruded at the axostylus axostyle two ends, keep supplying, the lower limit bit slice sets firmly, make, the lower limit bit slice is installed in the axostylus axostyle two ends and is the synchronization action shape, the bound bit slice is stretched in the scope of fit opening or register hole by the last lateral margin and the lower lip of wrench body respectively, or all is and leaves fit opening or register hole scope shape.
2. the anti-slip structure of spanner according to claim 1, it is characterized in that, the two ends that the axostylus axostyle of described stopper unit protrudes wrench body are formed with an inlay card section respectively, and described upper and lower limit bit slice is formed with the embedding hole of a correspondence, and this upper and lower limit bit slice is installed on the axostylus axostyle and synchronously and rotates.
3. the anti-slip structure of spanner according to claim 1 is characterized in that, the axostylus axostyle two ends inlay card section of described stopper unit is the grinding tooth shape, and the embedding hole of upper and lower limit bit slice also is corresponding grinding tooth shape.
4. the anti-slip structure of spanner according to claim 1 is characterized in that, the axostylus axostyle two ends inlay card section of described stopper unit is to be cerioid, and the embedding hole of upper and lower limit bit slice also is corresponding cerioid.
5. the anti-slip structure of spanner according to claim 2 is characterized in that, the axostylus axostyle two ends end face of described stopper unit is formed with a screw respectively, for utilizing locking part to be locked in after passing pad on the axostylus axostyle respectively, with the pin upper and lower limit bit slice of pulling.
6. the anti-slip structure of spanner according to claim 2 is characterized in that, the periphery that the upper and lower limit bit slice is protruded at the axostylus axostyle two ends of described stopper unit is formed with a catching groove respectively, detains the upper and lower limit bit slice of pulling for utilizing a C font button respectively.
7. the anti-slip structure of spanner according to claim 2 is characterized in that the axostylus axostyle of described stopper unit is formed up to rare one annular groove in the axis hole scope, is embedded a glue ring in the annular groove.
8. the anti-slip structure of spanner according to claim 2, it is characterized in that, described stopper unit is formed with an embedding hole in the fit portion two sides of wrench body, be respectively equipped with a positioning bead group in the embedding hole, the upper and lower limit bit slice is formed with several locating holes on corresponding surface, keeps supplying, the lower limit bit slice giving prominence to, folding and both all fold time location.
9. the anti-slip structure of spanner according to claim 1, it is characterized in that, described stopper unit is formed with a large diameter set section at axis hole one end of wrench body, upper limit bit slice is integrally formed in axle end, and axostylus axostyle end in addition is formed with a polygonal inlay card section, the lower limit bit slice also is formed with corresponding cerioid embedding hole, and the set section of axis hole is provided with a compression spring of shoring upper limit bit slice, makes to be formed with a gap between upper limit bit slice and wrench body.
10. the anti-slip structure of spanner according to claim 9, it is characterized in that, described stopper unit is formed with spacing salient point respectively on the surface of the corresponding wrench body of upper and lower limit bit slice, wrench body is formed with corresponding limited impression respectively at the fit opening or the register hole place of vicinity fit portion, keep supplying, locate when the outstanding fit opening of lower limit bit slice rotation or register hole, or the upper and lower limit bit slice is located when all leaving fit opening or register hole.
11. the anti-slip structure of spanner according to claim 9, it is characterized in that, described stopper unit is formed with a spacing salient point respectively on the surface of the corresponding wrench body of upper and lower limit bit slice, the limited impression that wrench body is formed with three correspondences respectively at the fit opening or the register hole place of vicinity fit portion, keep supplying, locate when the outstanding fit opening of lower limit bit slice rotation or register hole, or the upper and lower limit bit slice is located when all leaving fit opening or register hole.
12. the anti-slip structure of spanner according to claim 9, it is characterized in that, described stopper unit is formed with a spacing salient point on the surface of upper limit bit slice or the corresponding wrench body of lower limit bit slice, the limited impression that the spacing salient point of corresponding upper limit bit slice of wrench body or lower limit bit slice is formed with four correspondences at the fit opening or the register hole place of vicinity fit portion, keep supplying, locate when the outstanding fit opening of lower limit bit slice rotation or register hole, or the upper and lower limit bit slice is located when all leaving fit opening or register hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201408259U CN201030530Y (en) | 2007-03-23 | 2007-03-23 | Spanner slip-preventing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201408259U CN201030530Y (en) | 2007-03-23 | 2007-03-23 | Spanner slip-preventing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201030530Y true CN201030530Y (en) | 2008-03-05 |
Family
ID=39162423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201408259U Expired - Fee Related CN201030530Y (en) | 2007-03-23 | 2007-03-23 | Spanner slip-preventing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201030530Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056809A (en) * | 2012-12-17 | 2013-04-24 | 张家港市圣达金属工具有限公司 | Adjustable wrench |
| CN103878719A (en) * | 2014-04-15 | 2014-06-25 | 吴江市赛纳电子科技有限公司 | Fall-prevention wrench |
| CN105415267A (en) * | 2014-12-29 | 2016-03-23 | 国家电网公司 | Integrated wrench with anti-dropping part |
-
2007
- 2007-03-23 CN CNU2007201408259U patent/CN201030530Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056809A (en) * | 2012-12-17 | 2013-04-24 | 张家港市圣达金属工具有限公司 | Adjustable wrench |
| CN103878719A (en) * | 2014-04-15 | 2014-06-25 | 吴江市赛纳电子科技有限公司 | Fall-prevention wrench |
| CN105415267A (en) * | 2014-12-29 | 2016-03-23 | 国家电网公司 | Integrated wrench with anti-dropping part |
| CN105415267B (en) * | 2014-12-29 | 2017-03-08 | 国家电网公司 | There is the integrated spanner of retaining member |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080305 |