CN201559236U - Drilling means of lockhole machining machine for wooden door - Google Patents
Drilling means of lockhole machining machine for wooden door Download PDFInfo
- Publication number
- CN201559236U CN201559236U CN2009203167190U CN200920316719U CN201559236U CN 201559236 U CN201559236 U CN 201559236U CN 2009203167190 U CN2009203167190 U CN 2009203167190U CN 200920316719 U CN200920316719 U CN 200920316719U CN 201559236 U CN201559236 U CN 201559236U
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- bore motor
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- processing machine
- slide plate
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Abstract
The utility model provides a drilling means for lockhole machining machine for wooden door, which belongs to the field of woodworking machinery. The drilling means solves the problems of bottom cracking, unpleasing surface or the like of the wooden door, which are caused by drilling the horizontally laid wooden door from the top to the bottom during the machining by the lockhole machining machine of the wooden door in the prior art. The drilling means of the lockhole machining machine for the wooden door comprises an upper drilling motor disposed on the frame, the output shaft of the upper drilling motor is directed downwards and an upper drill is fixedly connected to the lower end of the output shaft, the upper drilling motor is connected with the lifting device I for enabling the same to move upward and downward. The drilling means is characterized in that a lower drilling motor right opposite to the upper drilling motor is provided beneath the upper drilling motor, a lower drill is fixed connected with an output shaft of the lower drilling motor, the lower drilling motor is connected with the lifting device II for enabling the same to move upward and downward. By adopting machining mode of upward and downward drilling in opposition, the position most likely to crack is placed in the middle of the lockhole, so that it is ensured that the surface quality of the wooden door is great, and the appearance is beautiful.
Description
Technical field
The utility model relates to timber lockhole processing machine, particularly relates to a kind of borehole drill construction of timber lockhole processing machine, belongs to the woodworking machinery field.
Background technology
Development along with woodworking machinery, increasing woodworking machinery equipment has appearred at present, as can to the side of timber carry out edge sealing the automatic edge sealing machine, be used to process the processing machine of door lock hole and hinge hole and groove etc., thereby replace manual operations, speed production efficient greatly.
Disclosed as patent No. ZL that the applicant applied for 200820087401 is a kind of door lock hole of full-automatic wood processing machine, the groove organisation of working, be used for processing automatically the lockhole and the locked groove of timber, before boring lockhole, earlier with the timber horizontal fixed of required processing on workbench, the drill bit of the output shaft lower end by being fixed in vertical motor is holed to timber from top to bottom, but when the bottom surface got near timber, when promptly soon drilling through, because the bottom bearing capacity of timber is more and more littler, the phenomenon that the bottom surface collapses the limit or splits appears easily, cause the timber surface not attractive in appearance, also can have a strong impact on the surface quality of timber.
Summary of the invention
The utility model provides a kind of timber bottom that prevents to collapse the borehole drill construction of the timber lockhole processing machine of limit phenomenon.
The purpose of this utility model can realize by following technical proposal: the borehole drill construction of timber lockhole processing machine, comprise the last bore motor of being located on the frame, the described output shaft of going up bore motor down and the output shaft lower end be fixed with drill bit, the described bore motor of going up links to each other with the lowering or hoisting gear one that its relative frame is moved up and down, it is characterized in that, described below of going up bore motor also be provided with it over against following bore motor, the output shaft upper end of described bore motor down is fixed with down drill bit, and described bore motor down links to each other with making its lowering or hoisting gear that moves up and down two.
The borehole drill construction of this timber lockhole processing machine, by up and down over against last drill bit form with following drill bit, last drill bit is driven by last bore motor, following drill bit is by bore motor drive down, the timber horizontal fixed is on the workbench between last drill bit and the following drill bit, during work, drill bit down rotates to make bore motor drive upward by lowering or hoisting gear one earlier, on timber, get out the hole of certain depth, its degree of depth is generally about thick half of door, goes up bore motor then and upwards returns, and restarts lowering or hoisting gear two, drill bit up rotates to make down bore motor drive down, until with till hole that last drill bit is bored communicates.
In the borehole drill construction of above-mentioned timber lockhole processing machine, described lowering or hoisting gear one comprises a vertical screw mandrel, described screw mandrel is driven by the servomotor that is fixedly arranged on the frame, also be socketed with the elevating bracket of threaded engagement with it on the described screw mandrel, the described bore motor of going up is connected mutually with described elevating bracket.When servomotor just changeed, servomotor drove the screw mandrel rotation, and elevating bracket will drive bore motor and move downward, and when servomotor reversed, elevating bracket will drive bore motor and move upward and reset.
In the borehole drill construction of above-mentioned timber lockhole processing machine, the described quantity that goes up bore motor is two or more, bore motor is parallel to each other and is fixed on the described elevating bracket on each, and also be fixed with one by one corresponding to bore motor place on each on the elevating bracket can make corresponding on the rewind down cylinder return fast of bore motor.Certainly, on each bore motor below all be provided with corresponding bore motor down, in actual mechanical process, the drill bit (and the same group of drill bit to two bore motors of brill is identical) that varies in size can be installed on the bore motor on each, come the lockhole in the different apertures of drilling, thereby increase work efficiency greatly; After a lock hole drill is good, can make it to return fast original position by the rewind down cylinder at bore motor place on this, prevent from timber, to get out unwanted hole again by the last drill bit that bore motor on this drives.
In the borehole drill construction of above-mentioned timber lockhole processing machine, described on each bore motor be fixed on the described elevating bracket by vertical slide plate, described each rewind down cylinder is fixed on the described vertical slide plate.Utilize vertical slide plate that bore motor on each is installed, be convenient to make and install.
In the borehole drill construction of above-mentioned timber lockhole processing machine, be respectively equipped with guide frame one between the both sides of described vertical slide plate and the frame.Because vertical slide plate is heavier with the weight of the last bore motor that is mounted thereon, and can make vertical slide plate lifting reposefully by guide frame one.
In the borehole drill construction of above-mentioned timber lockhole processing machine, described guide frame one be on frame corresponding to a side mounting guide rail one of vertical slide plate, be connected with the slide block one that matches with above-mentioned guide rail one on the described vertical slide plate.
In the borehole drill construction of above-mentioned timber lockhole processing machine, described vertical slide plate and be respectively equipped with guide frame two on each between the bore motor, described guide frame two is formed by being fixed on each slide block on bore motor two and being fixed in the guide rail two that is slidingly matched with each slide block two on the vertical slide plate.By guide frame two bore motor can be return reposefully fast.
In the borehole drill construction of above-mentioned timber lockhole processing machine, be connected with balance cylinder on the described frame, the piston rod of described balance cylinder connects the top of vertical slide plate.Balance cylinder works when vertical slide plate is upwards return, and it can offset the gravity of vertical slide plate, makes it mobile reposefully.
In the borehole drill construction of above-mentioned timber lockhole processing machine, described lowering or hoisting gear two comprises the lift cylinder that vertically is fixed in outside the frame, and described bore motor down links to each other with the piston rod of lift cylinder.Control the lifting of the following bore motor that is attached thereto by stretching of lift cylinder.
In the borehole drill construction of above-mentioned timber lockhole processing machine, be provided with guide frame three between described down bore motor and the frame, described guide frame three is made up of the slide block three that is slidingly matched with guide rail three that is fixed in the guide rail three on the frame and be fixed on the bore motor down.By guide frame three bore motor can be moved up and down reposefully.
Compared with prior art, the borehole drill construction of this timber lockhole processing machine below last bore motor, also set up with it over against following bore motor, form the processing mode to boring up and down, drive half degree of depth of the drill bit drilling timber thickness that is connected with it earlier by a bore motor, return original position again, and then drive the another side drilling of the drill bit that is connected with it by another bore motor from timber, until lockhole is drilled through, thereby the place of will bursting apart easily is located at the middle part of lockhole, the surface quality that guarantees timber is intact, good looking appearance.
Description of drawings
Fig. 1 is that the A of Fig. 3 is to structural representation.
Fig. 2 is the B-B cross-sectional schematic of Fig. 1.
Fig. 3 is that the C of Fig. 1 is to structural representation.
Among the figure, 1 frame; Bore motor on 2; The last drill bit of 2a; 3 times bore motors; Drill bit under the 3a; The 4a screw mandrel; The 4b servomotor; The 4c elevating bracket; 5 rewind down cylinders; 6 vertical slide plate; 7a guide rail one; 7b slide block one; 8a guide rail two; 8b slide block two; 9 balance cylinders; 10 lift cylinders; 11a guide rail three; 11b slide block three; 12 timbers; 13 Upright post bases; 14 shaft couplings.
The specific embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 3, the borehole drill construction of this timber lockhole processing machine, on frame 1, be provided with two be set up in parallel to boring group of motors, each to bore group of motors by up and down over against last bore motor 2 and following bore motor 3 compositions, output shaft lower end of bore motor 2 is fixed with drill bit 2a on each, and is driven by lowering or hoisting gear one; Each is fixed with down drill bit 3a in output shaft upper end of bore motor 3 down, and is driven by lowering or hoisting gear two.
As shown in Figure 1, the concrete structure of lowering or hoisting gear one adopts a vertical screw mandrel 4a, the lower end of screw mandrel 4a is fixed on the frame 1, the upper end of screw mandrel 4a connects the output shaft of servomotor 4b by shaft coupling 14, also be socketed with the elevating bracket 4c of threaded engagement with it on the screw mandrel 4a, the affixed vertical slide plate 6 of this elevating bracket 4c, bore motor 2 is fixed on the vertical slide plate 6 side by side on each.
Because one drops to the middle part of timber to boring after the group of motors drilling drill bit 2a on it, in order to prevent at another when boring the group of motors drilling, last upward drill bit 2a influences the surface of timber, therefore can install respectively corresponding to 2 places of bore motor on each on the vertical slide plate 6 make corresponding on the rewind down cylinder 5 return fast of bore motor 2, return reposefully in order to make bore motor 2, as shown in Figure 2, also can be on each on bore motor 2 with respect to a side of vertical slide plate 6 fixing slide block two 8b respectively, fixing guide rail two 8a that are slidingly matched with each slide block two 8b on vertical slide plate 6.
Because vertical slide plate 6 and be fixed thereon each on the weight of bore motor 2 heavier, shake in order to prevent to move up and down, can be on vertical slide plate 6 with respect to the both sides of frame 1 fixing slide block one 7b respectively, fixing guide rail one 7a that matches with each slide block one 7b on frame 1; In order to reduce the gravity effect that vertical slide plate 6 is upwards return, the piston rod that also can fix two balance cylinder 9, two balance cylinders 9 on frame 1 connects the both sides, top of vertical slide plate 6 respectively.
Lowering or hoisting gear two can adopt lift cylinder 10 to realize down that the worker of bore motor 3 advances and returns, and concrete structure is that lift cylinder 10 is fixed in outside the frame 1, and the piston rod of lift cylinder 10 is provided with up, and the upper end of piston rod and following bore motor 3 are fixed.
In order to make bore motor 3 lifting reposefully down, also can be on bore motor 3 down with respect to fixing slide block three 11b of a side of frame 1, on frame 1, fix guide rail three 11a that match with slide block three 11b.
Before processing, in advance with timber 12 horizontal fixed on the workbench between last drill bit 2a and the following drill bit 3a, add man-hour, start servomotor 4b earlier, thereby drive screw mandrel 4a rotation, elevating bracket 4c and vertical slide plate 6, last bore motor 3 are moved downward, last drill bit 3a is by the downward drilling of the upper surface of timber 12, when getting into thick half left and right sides of door, and 5 work of rewind down cylinder, bore motor 2 is upwards return fast, and servomotor 4b also upwards moves back elevating bracket 4c; Then start lift cylinder 10, lift cylinder 10 drives down that bore motor 3 moves upward, and makes down drill bit 3a by the drilling that makes progress of the bottom surface of timber 12, and up to when hole that last drill bit 3a is bored communicates, lift cylinder 10 drives following bore motor 3 and resets.
Certainly, also can on frame, be provided with one to boring group of motors, like this can be on timber the lockhole of drilling same apertures, if when wanting the lockhole in the different apertures of drilling, the replaceable drill bit that is installed on bore motor and the following bore motor.
In addition, in order to locate the position of lockhole easily, can on frame 1, Upright post base 13 be set activity, vertical slide plate 6, lift cylinder 10, servomotor 4b and balance cylinder 9 etc. all are fixed on the Upright post base 13, the lateral driver device that Upright post base 13 is laterally moved is set between Upright post base 13 and frame 1 again, vertical drive unit that the lateral driver device work is vertically moved also can be set between lateral driver device and frame, accurately locate by the position of laterally moving and vertically moving bore motor and following bore motor.Lateral driver device the and vertically concrete structure of drive unit is more can adopt screw mandrel and realizes with the nut of its threaded engagement, and screw mandrel is driven by a servomotor.
Claims (10)
1. the borehole drill construction of timber lockhole processing machine, comprise the last bore motor of being located on the frame (1) (2), the described output shaft of going up bore motor (2) down and the output shaft lower end be fixed with drill bit (2a), the described bore motor (2) of going up links to each other with the lowering or hoisting gear one that its relative frame (1) is moved up and down, it is characterized in that, described below of going up bore motor (2) also be provided with it over against following bore motor (3), the output shaft upper end of described bore motor (3) down is fixed with down drill bit (3a), and described bore motor (3) down links to each other with making its lowering or hoisting gear that moves up and down two.
2. the borehole drill construction of timber lockhole processing machine according to claim 1, it is characterized in that, described lowering or hoisting gear one comprises a vertical screw mandrel (4a), described screw mandrel (4a) is driven by the servomotor (4b) that is fixedly arranged on the frame (1), also be socketed with the elevating bracket of threaded engagement (4c) with it on the described screw mandrel (4a), the described bore motor (2) of going up is connected mutually with described elevating bracket (4c).
3. the borehole drill construction of timber lockhole processing machine according to claim 2, it is characterized in that, the described quantity that goes up bore motor (2) is two or more, bore motor on each (2) is parallel to each other and is fixed on the described elevating bracket (4c), and upward locates also to be fixed with one by one the rewind down cylinder (5) that corresponding upward bore motor (2) is return fast corresponding to bore motor on each (2) at elevating bracket (4c).
4. the borehole drill construction of timber lockhole processing machine according to claim 3, it is characterized in that, described on each bore motor (2) be fixed on the described elevating bracket (4c) by vertical slide plate (6), described each rewind down cylinder (5) is fixed on the described vertical slide plate (6).
5. the borehole drill construction of timber lockhole processing machine according to claim 4 is characterized in that, is respectively equipped with guide frame one between the both sides of described vertical slide plate (6) and the frame (1).
6. the borehole drill construction of timber lockhole processing machine according to claim 5, it is characterized in that, described guide frame one is at the last side mounting guide rail one (7a) corresponding to vertical slide plate (6) of frame (1), is connected with the slide block one (7b) that matches with above-mentioned guide rail one (7a) on the described vertical slide plate (6).
7. the borehole drill construction of timber lockhole processing machine according to claim 6, it is characterized in that, described vertical slide plate (6) and be respectively equipped with guide frame two between the bore motor (2) on each, described guide frame two is formed by being fixed in the slide block two (8b) on the bore motor on each (2) and being fixed in the guide rail two (8a) that vertical slide plate (6) goes up and each slide block two (8b) is slidingly matched.
8. according to the borehole drill construction of arbitrary described timber lockhole processing machine of claim 4-7, it is characterized in that, be connected with balance cylinder (9) on the described frame (1), the piston rod of described balance cylinder (9) connects the top of vertical slide plate (6).
9. according to the borehole drill construction of arbitrary described timber lockhole processing machine of claim 1-7, it is characterized in that, described lowering or hoisting gear two comprises the lift cylinder (10) that vertically is fixed in outside the frame (1), and described bore motor (3) down links to each other with the piston rod of lift cylinder (10).
10. the borehole drill construction of timber lockhole processing machine according to claim 9, it is characterized in that, be provided with guide frame three between described down bore motor (3) and the frame (1), described guide frame three is made up of the slide block three (11b) that is slidingly matched with guide rail three (11a) that is fixed in the guide rail three (11a) on the frame (1) and be fixed on time bore motor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203167190U CN201559236U (en) | 2009-12-07 | 2009-12-07 | Drilling means of lockhole machining machine for wooden door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203167190U CN201559236U (en) | 2009-12-07 | 2009-12-07 | Drilling means of lockhole machining machine for wooden door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201559236U true CN201559236U (en) | 2010-08-25 |
Family
ID=42624381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203167190U Expired - Fee Related CN201559236U (en) | 2009-12-07 | 2009-12-07 | Drilling means of lockhole machining machine for wooden door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201559236U (en) |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170899A (en) * | 2011-12-20 | 2013-06-26 | 苏州信能精密机械有限公司 | Reciprocating structure of upper honing rod of vertical type honing machine |
| CN103991114A (en) * | 2014-04-28 | 2014-08-20 | 陈子初 | Novel lock hole machine for wooden door |
| CN105562754A (en) * | 2016-01-22 | 2016-05-11 | 东莞市南兴家具装备制造股份有限公司 | Double-machine-head and double-tongs drilling machining center |
| CN106694939A (en) * | 2017-03-21 | 2017-05-24 | 青岛吉森木业有限公司 | Chair frame punching device for child seat chair |
| CN107008935A (en) * | 2017-05-31 | 2017-08-04 | 陈柯 | A kind of punch device with two-way punching functions |
| CN107097298A (en) * | 2017-05-02 | 2017-08-29 | 浙江童园玩具有限公司 | Nahlock processing technology and its process equipment |
| CN107498648A (en) * | 2017-08-30 | 2017-12-22 | 安顺市檀木世家工艺品有限公司 | A kind of vertical wooden pearl machine |
| CN107838460A (en) * | 2017-05-31 | 2018-03-27 | 南宁朗程电子科技有限公司 | A kind of two-way punch device |
| CN107838461A (en) * | 2017-05-31 | 2018-03-27 | 南宁朗程电子科技有限公司 | A kind of punch device of two-way punching |
| CN107866605A (en) * | 2017-05-31 | 2018-04-03 | 南宁深通电子科技有限公司 | A kind of practical engineering construction metallic plate cutting machine |
| CN107866599A (en) * | 2017-05-31 | 2018-04-03 | 南宁深通电子科技有限公司 | Metallic plate cutting machine is used in one kind construction |
| CN108115325A (en) * | 2017-05-31 | 2018-06-05 | 广西南宁尼科安全技术服务有限公司 | A kind of welding equipment of practicality |
| CN108582279A (en) * | 2018-04-24 | 2018-09-28 | 营口鑫白云机械有限公司 | Carpenter's Holes in NC is to drilling machine |
| CN109129728A (en) * | 2018-10-19 | 2019-01-04 | 山东海超机械有限公司 | A kind of hinge brill |
| CN109465933A (en) * | 2018-12-29 | 2019-03-15 | 佛山市顺德区鑫宏天机械制造有限公司 | A kind of drilling digital controlled material cutting machine up and down without turnover panel |
| CN111702217A (en) * | 2020-06-29 | 2020-09-25 | 北京新远建邦科技有限公司 | Automatic punching mechanism and automatic punching machine |
| CN111761669A (en) * | 2020-07-10 | 2020-10-13 | 柳兆华 | Environment-friendly type wooden door manufacturing and slotting processing equipment and manufacturing and processing method |
| CN112092108A (en) * | 2020-09-14 | 2020-12-18 | 吴艮爱 | Quick drilling machine of plank |
| CN112847687A (en) * | 2021-02-03 | 2021-05-28 | 杭州奥诺威装饰材料有限公司 | Door panel perforating machine for paint-free door |
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2009
- 2009-12-07 CN CN2009203167190U patent/CN201559236U/en not_active Expired - Fee Related
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170899A (en) * | 2011-12-20 | 2013-06-26 | 苏州信能精密机械有限公司 | Reciprocating structure of upper honing rod of vertical type honing machine |
| CN103991114A (en) * | 2014-04-28 | 2014-08-20 | 陈子初 | Novel lock hole machine for wooden door |
| CN103991114B (en) * | 2014-04-28 | 2016-08-17 | 陈子初 | A kind of novel wood door lockhole machine |
| CN105562754B (en) * | 2016-01-22 | 2017-12-01 | 南兴装备股份有限公司 | Double-head double fastener clamps drill hole processing center |
| CN105562754A (en) * | 2016-01-22 | 2016-05-11 | 东莞市南兴家具装备制造股份有限公司 | Double-machine-head and double-tongs drilling machining center |
| CN106694939A (en) * | 2017-03-21 | 2017-05-24 | 青岛吉森木业有限公司 | Chair frame punching device for child seat chair |
| CN107097298A (en) * | 2017-05-02 | 2017-08-29 | 浙江童园玩具有限公司 | Nahlock processing technology and its process equipment |
| CN107866599A (en) * | 2017-05-31 | 2018-04-03 | 南宁深通电子科技有限公司 | Metallic plate cutting machine is used in one kind construction |
| CN107838460A (en) * | 2017-05-31 | 2018-03-27 | 南宁朗程电子科技有限公司 | A kind of two-way punch device |
| CN107838461A (en) * | 2017-05-31 | 2018-03-27 | 南宁朗程电子科技有限公司 | A kind of punch device of two-way punching |
| CN107866605A (en) * | 2017-05-31 | 2018-04-03 | 南宁深通电子科技有限公司 | A kind of practical engineering construction metallic plate cutting machine |
| CN107008935A (en) * | 2017-05-31 | 2017-08-04 | 陈柯 | A kind of punch device with two-way punching functions |
| CN107008935B (en) * | 2017-05-31 | 2018-05-22 | 南京苏宁锻造有限公司 | A kind of punch device with two-way punching functions |
| CN108115325A (en) * | 2017-05-31 | 2018-06-05 | 广西南宁尼科安全技术服务有限公司 | A kind of welding equipment of practicality |
| CN107498648A (en) * | 2017-08-30 | 2017-12-22 | 安顺市檀木世家工艺品有限公司 | A kind of vertical wooden pearl machine |
| CN108582279A (en) * | 2018-04-24 | 2018-09-28 | 营口鑫白云机械有限公司 | Carpenter's Holes in NC is to drilling machine |
| CN109129728A (en) * | 2018-10-19 | 2019-01-04 | 山东海超机械有限公司 | A kind of hinge brill |
| CN109465933A (en) * | 2018-12-29 | 2019-03-15 | 佛山市顺德区鑫宏天机械制造有限公司 | A kind of drilling digital controlled material cutting machine up and down without turnover panel |
| CN111702217A (en) * | 2020-06-29 | 2020-09-25 | 北京新远建邦科技有限公司 | Automatic punching mechanism and automatic punching machine |
| CN111761669A (en) * | 2020-07-10 | 2020-10-13 | 柳兆华 | Environment-friendly type wooden door manufacturing and slotting processing equipment and manufacturing and processing method |
| CN111761669B (en) * | 2020-07-10 | 2021-12-24 | 浙江索福绿建实业有限公司 | Environment-friendly type wooden door manufacturing and slotting processing equipment and manufacturing and processing method |
| CN112092108A (en) * | 2020-09-14 | 2020-12-18 | 吴艮爱 | Quick drilling machine of plank |
| CN112847687A (en) * | 2021-02-03 | 2021-05-28 | 杭州奥诺威装饰材料有限公司 | Door panel perforating machine for paint-free door |
| CN112847687B (en) * | 2021-02-03 | 2022-08-09 | 杭州奥诺威装饰材料有限公司 | Door panel perforating machine for paint-free door |
| CN113478849A (en) * | 2021-05-14 | 2021-10-08 | 嘉兴市创辉电气工程有限公司 | Pipe sleeve and sleeve nail connecting device for cable pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20141207 |
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| EXPY | Termination of patent right or utility model |