CN208005554U - A kind of deep hole nut monkey wrench - Google Patents
A kind of deep hole nut monkey wrench Download PDFInfo
- Publication number
- CN208005554U CN208005554U CN201820083176.1U CN201820083176U CN208005554U CN 208005554 U CN208005554 U CN 208005554U CN 201820083176 U CN201820083176 U CN 201820083176U CN 208005554 U CN208005554 U CN 208005554U
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- CN
- China
- Prior art keywords
- fixedly connected
- gear
- spring
- sleeve
- bevel gear
- 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
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Abstract
The utility model discloses a kind of deep hole nut monkey wrench,Including extension bar,One end of the extension bar is fixedly connected on the center side of first gear,The another side center rotating of the first gear is connected with one end of locating rod,By the way that extension bar is added,First gear,The structures such as chain and second gear,First electromagnet drives first bevel gear to move right,First bevel gear drives shank to be inserted into through-hole,The telescopic end of telescopic rod is ejected into through-hole simultaneously,First bevel gear is detached with second bevel gear at this time,First bevel gear band moving sleeve rotates,To realize the dismounting to nut,The diameter of second gear is more than the diameter of first gear,Dismounting nut that can be more effortless,Without other tools,It can be quick,Easily dismount nut,Save repair,Service time,Improve production efficiency,With very strong practicability.
Description
Technical field
The utility model is related to bearing roller technical field, specially a kind of deep hole nut monkey wrench.
Background technology
Equipment needed for bearing roller industry has press machine, grinding machine etc., and the parts of equipment are screwed mostly, and space
Narrow, traditional spanner is difficult the big ting model of nut dismounted to nut in narrow space, and used in equipment
It has differences, needs spanner not of the same race that could complete the dismounting of nut, maintain, repair inconvenience, thus influence production
Efficiency.
Utility model content
The purpose of this utility model is to provide a kind of deep hole nut monkey wrench, to solve to propose in above-mentioned background technology
The problem of.
To achieve the above object, the utility model provides the following technical solutions：
A kind of deep hole nut monkey wrench, including extension bar, one end of the extension bar are fixedly connected on first gear
Center side, the another side center rotating of the first gear are connected with one end of locating rod, movable sleeve in the locating rod
It is connected to transmission shaft, one end of the transmission shaft is fixedly connected on the center side of second gear, and the other end of the transmission shaft connects
It is connected to sleeve assembly, the second gear is connect with first gear by chain.
Preferably, the sleeve assembly includes sleeve, and sleeve is hollow structure, the side wall central movable grafting of the sleeve
There are one end of transmission shaft, sleeve to be connect with external stability, one end that the transmission shaft is located at barrel bore offers the first groove,
The second electromagnet is inlaid on the side wall of the transmission shaft, the side wall of the first groove is fixedly connected with one end of third spring, institute
The other end for stating third spring is fixedly connected on one end of the first bull stick, and the other end of first bull stick is fixedly connected on first
The center side of bevel gear, the first rod slides are plugged in the first groove, and the inside of first bull stick is inlaid with the first electricity
Magnet, first electromagnet is corresponding with the second electromagnet, and the side wall of the sleeve offers several through-holes, the through-hole
Upper activity is plugged with one end of telescopic rod, and the other end of the telescopic rod is fixedly connected on the securing lever, living on the telescopic rod
Dynamic to be socketed with the first spring, one end of first spring is fixedly connected on the securing lever, and the other end of the first spring, which is fixed, to be connected
It is connected on the side wall of telescopic rod telescopic end, the first bevel gear is fixedly connected with several corresponding with through-hole close to the side of through-hole
Shank, be engaged with second bevel gear in the first bevel gear, the center of the second bevel gear is fixedly connected with second
The other end of one end of bull stick, second bull stick is rotatably connected on the madial wall of sleeve, and the second bevel gear is far from
One end of l-shaped rod is rotatably connected on the end face of two bull sticks, the other end of the l-shaped rod is hinged on the side of link block, even
The other side for connecing block is fixedly connected with first piston, and in first piston cylinder, described first lives for the first piston sliding plug
The first stomata is offered on the side wall of plug cylinder, and first gear corresponding with the first stomata is hinged on the madial wall of first piston cylinder
Plate, side of the first baffle far from the first stomata are fixedly connected with one end of second spring, the second spring it is another
End is fixedly connected on the madial wall of first piston cylinder, and side wall perforation of the first piston cylinder far from first bevel gear is connected with
One end of snorkel, the other end of the snorkel, which penetrates through, is connected with second piston cylinder, on the madial wall of the second piston cylinder
It is hinged with second baffle, the position of second baffle is corresponding with the position of snorkel, is fixedly connected on the left of the second baffle
There is one end of the 6th spring, the other end of the 6th spring is fixedly connected on the madial wall of second piston cylinder, described in two
Through being connected with mounting blocks on the side wall that second piston cylinder is located remotely from each other, the second groove is offered on the mounting blocks, described the
The side wall of two grooves offers the second stomata, and the mounting blocks are fixedly connected with the madial wall of sleeve, living in second groove
Dynamic to be plugged with pressing lever, one end activity of the pressing lever reaches cartridge exterior, the other end of pressing lever through the side wall of sleeve
It is fixedly connected with one end of the 4th spring, U-shaped hole road is offered inside the pressing lever, the other end of the 4th spring is fixed
It is connected on the bottom wall of the second groove, the second piston and the inner wall of second piston cylinder are slidably connected, and the second piston is remote
From one end that the side of mounting blocks is respectively fixedly connected with the first electric waveguide plate and several 5th springs, the 5th spring it is another
End is fixedly connected in fixed plate, and the second electric waveguide plate corresponding with the first electric waveguide plate is fixedly connected in the fixed plate.
Preferably, it is equipped with skid resistant course on the extension bar.
Preferably, the diameter of the second gear is more than the diameter of first gear.
Preferably, the quantity for being located at the 5th spring in same fixed plate is more than six, and multiple 5th bullets
It is equally spaced between spring.
Preferably, the one end of the shank far from first bevel gear is conical structure.
Compared with prior art, the utility model has the beneficial effects that：This deep hole nut monkey wrench is simple in structure, passes through
The structures such as extension bar, first gear, chain and second gear are added, when needing to dismount nut, by the way that sleeve assembly to be socketed
On the nut to be dismounted, extension bar is rotated manually, extension bar drives first gear rotation, and first gear passes through chain-driving the
Two gears rotate, and second gear drives transmission shaft rotation, transmission shaft to drive first bevel gear to rotate by the first bull stick, the first cone
Gear drives the rotation of two second bevel gears, l-shaped rod that first piston is made to be moved back and forth in first piston cylinder, when first piston to
When moving right, external air is pressed down against first baffle from the first stomata, and first baffle compresses second spring, and the first stomata is beaten
It opens, air enters in first piston cylinder, and when first piston is moved to the left, second spring withstands first baffle, makes first baffle
Block the first stomata, air is extruded into snorkel, has squeezed second baffle, and second baffle compresses the 6th spring, air from
Snorkel enters in second piston cylinder, and after the air in snorkel enters second piston cylinder, the 6th recoil of spring makes second gear
Plate blocks snorkel, realizes and increases air to second piston cylinder interior, and air push second piston is moved to outside second piston cylinder
Dynamic, second piston drives fixed plate to be moved far from second piston cylinder by several 5th springs, and two fixed plates are close to each other straight
To nut is contradicted, first piston cylinder continues to be pressed into air into second piston cylinder, and it is several that air continues to press on second piston extruding
5th spring makes two fixed plates firmly secure nut, and different model can be fixed with a sleeve total performance by realizing
The nut of size, final first electric waveguide plate and the contact of the second electric waveguide plate, connect external power supply, the first electromagnet and the second electromagnet
It is powered, the first electromagnet attracts each other with the second electromagnet, and the first electromagnet drives first bevel gear to move right, the first cone tooth
Wheel drives shank to be inserted into through-hole, while the telescopic end of telescopic rod is ejected through-hole, at this time first bevel gear and second bevel gear
Separation, first bevel gear band moving sleeve rotate, to realize that the dismounting to nut, the diameter of second gear are more than first gear
Diameter, dismounting nut that can be more effortless can quickly and easily dismount nut without other tools, save dimension
It repaiies, service time, improves production efficiency, there is very strong practicability.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the portions A structural schematic diagram；
Fig. 3 is the portions B structural schematic diagram.
In figure：Extension bar 1, first gear 2, chain 3, second gear 4, locating rod 5, transmission shaft 6, sleeve assembly 7, first
Bevel gear 71, fixed plate 72, sleeve 73, second bevel gear 74, shank 75, the first bull stick 76, first the 77, second electricity of electromagnet
Magnet 78, telescopic rod 79, the first spring 710, l-shaped rod 711, first piston cylinder 712, second spring 713, snorkel 714, first
Piston 715, first baffle 716, third spring 717, the first stomata 718, second piston cylinder 719, the 4th spring 720, second are lived
Plug 721, pressing lever 722, the 5th spring 723, the first electric waveguide plate 724, the second electric waveguide plate 725, second baffle 726, the 6th spring
727, mounting blocks 728.
Specific implementation mode
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
The every other embodiment obtained, shall fall within the protection scope of the present invention.
- 3 are please referred to Fig.1, the utility model provides a kind of technical solution：
A kind of deep hole nut monkey wrench, including extension bar 1, one end of extension bar 1 are fixedly connected on the side of first gear 2
Face center, the another side center rotating of first gear 2 are connected with one end of locating rod 5, and movable sleeve is connected to transmission in locating rod 5
Axis 6, one end of transmission shaft 6 are fixedly connected on the center side of second gear 4, and the other end of transmission shaft 6 is connected with sleeve assembly
7, second gear 4 is connect with first gear 2 by chain 3, and skid resistant course is equipped on extension bar 1, and the diameter of second gear 4 is more than
The diameter of first gear 2.
Sleeve assembly 7 includes sleeve 73, and sleeve 73 is hollow structure, and the side wall central movable of sleeve 73 is plugged with transmission shaft
6 one end, sleeve 73 are connect with external stability, and one end that transmission shaft 6 is located at 73 inner cavity of sleeve offers the first groove, transmission shaft
The second electromagnet 78 is inlaid on 6 side wall, the side wall of the first groove is fixedly connected with one end of third spring 717, third bullet
The other end of spring 717 is fixedly connected on one end of the first bull stick 76, and the other end of the first bull stick 76 is fixedly connected on the first cone tooth
The center side of wheel 71, for 76 sliding plug of the first bull stick in the first groove, the inside of the first bull stick 76 is inlaid with the first electromagnetism
Iron 77, the first electromagnet 77 is corresponding with the second electromagnet 78, and the side wall of sleeve 73 offers several through-holes, activity on through-hole
It is plugged with one end of telescopic rod 79, the other end of telescopic rod 79 is fixedly connected in locating rod 5, and movable sleeve is connected on telescopic rod 79
One end of first spring 710, the first spring 710 is fixedly connected in locating rod 5, and the other end of the first spring 710 is fixedly connected
On the side wall of 79 telescopic end of telescopic rod, first bevel gear 71 is fixedly connected with several corresponding with through-hole close to the side of through-hole
Shank 75 is engaged with second bevel gear 74 in first bevel gear 71, and the center of second bevel gear 74 is fixedly connected with second turn
The other end of one end of bar, the second bull stick is rotatably connected on the madial wall of sleeve 73, and second bevel gear 74 is far from the second bull stick
End face on be rotatably connected to one end of l-shaped rod 711, the other end of l-shaped rod 711 is hinged on the side of link block, link block
The other side be fixedly connected with first piston 715,715 sliding plug of first piston is in first piston cylinder 712, first piston cylinder
The first stomata 718 is offered on 712 side wall, is hinged on the madial wall of first piston cylinder 712 corresponding with the first stomata 718
First baffle 716, side of the first baffle 716 far from the first stomata 718 are fixedly connected with one end of second spring 713, and second
The other end of spring 713 is fixedly connected on the madial wall of first piston cylinder 712, and first piston cylinder 712 is far from first bevel gear
71 side wall perforation is connected with one end of snorkel 714, and the other end perforation of snorkel 714 is connected with second piston cylinder 719, the
Second baffle 726 is hinged on the madial wall of two piston cylinders 719, the position of second baffle 726 is opposite with the position of snorkel 714
It answers, the left side of second baffle 726 is fixedly connected with one end of the 6th spring 727, and the other end of the 6th spring 727 is fixedly connected on
Run through on the madial wall of second piston cylinder 719, on the side wall that two second piston cylinders 719 are located remotely from each other and be connected with mounting blocks 728,
The second groove is offered on mounting blocks 728, the side wall of the second groove offers the second stomata, and mounting blocks 728 are interior with sleeve 73
Side wall is fixedly connected, in the second groove activity be plugged with pressing lever 722, one end activity of pressing lever 722 runs through the side of sleeve 73
Wall reaches outside sleeve 73, and the other end of pressing lever 722 is fixedly connected with one end of the 4th spring 720, is opened inside pressing lever 722
Equipped with U-shaped hole road, the other end of the 4th spring 720 is fixedly connected on the bottom wall of the second groove, and second piston 721 and second is lived
The inner wall of plug cylinder 719 is slidably connected, and side of the second piston 721 far from mounting blocks 728 has been respectively fixedly connected with the first electric waveguide plate
724 and several 5th springs 723 one end, the other end of the 5th spring 723 is fixedly connected in fixed plate 72, in fixed plate 72
It is fixedly connected with second electric waveguide plate 725 corresponding with the first electric waveguide plate 724, skid resistant course, second gear 4 are equipped on extension bar 1
Diameter be more than the diameter of first gear 2, the quantity for being located at the 5th spring 723 in same fixed plate 72 is more than six, and more
It is equally spaced between a 5th spring 723, the one end of shank 75 far from first bevel gear 71 is conical structure, the first electromagnetism
Iron 77, the second electromagnet 78, the first electric waveguide plate 724, the second electric waveguide plate 725 and external power supply collectively constitute a string by conducting wire
Join circuit.
Operation principle：When needing to dismount nut, by the way that sleeve assembly 7 to be socketed on the nut to be dismounted, turn manually
Dynamic extension bar 1, extension bar 1 drive first gear 2 to rotate, and first gear 2 drives second gear 4 to rotate by chain 3, the second tooth
Wheel 4 drives transmission shaft 6 to rotate, and transmission shaft 6 drives first bevel gear 71 to rotate by the first bull stick 76, and first bevel gear 71 drives
Two second bevel gears 74 rotate, and l-shaped rod 711 makes first piston 715 be moved back and forth in first piston cylinder 712, when the first work
Plug 715 is when moving right, and external air is pressed down against first baffle 716 from the first stomata 718, the compression of first baffle 716 the
Two springs 713, the first stomata 718 are opened, and air enters in first piston cylinder 712, when first piston 715 is moved to the left, the
Two springs 713 withstand first baffle 716, and first baffle 716 is made to block the first stomata 718, and air is extruded into snorkel 714
In, second baffle 726 is squeezed, second baffle 726 compresses the 6th spring 727, and air enters second piston cylinder from snorkel 714
In 719, after the air in snorkel 714 enters second piston cylinder 719, the rebound of the 6th spring 727 keeps second baffle 726 stifled
Firmly snorkel 714 realize and increase air to the inside of second piston cylinder 719, and air push second piston 721 is to second piston cylinder
Mobile outside 719, second piston 721 drives fixed plate 72 to be moved far from second piston cylinder 719 by several 5th springs 723, and two
A fixed plate 72 is close to each other, and until contradicting nut, first piston cylinder 712 continues to be pressed into air into second piston cylinder 719, empty
Gas continues to press on second piston 721 and squeezes several 5th springs 723, and two fixed plates 72 is made firmly to secure nut, realizes
The nut of different model size, final first electric waveguide plate 724 and second electric waveguide plate can be fixed with a sleeve assembly 7
External power supply is connected in 725 contacts, and the first electromagnet 77 and the second electromagnet 78 are powered, the first electromagnet 77 and the second electromagnet
78 attract each other, and the first electromagnet 77 drives first bevel gear 71 to move right, and first bevel gear 71 drives shank 75 to be inserted into
Through-hole, while the telescopic end of telescopic rod 79 is ejected into through-hole, first bevel gear 71 is detached with second bevel gear 74 at this time, the first cone
Gear 71 is rotated with moving sleeve 73, to realize that the dismounting to nut can quickly and easily be torn open without other tools
Loading nut saves repair, service time, improves production efficiency.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of deep hole nut monkey wrench, including extension bar（1）, it is characterised in that：The extension bar（1）One end fix connect
It is connected on first gear（2）Center side, the first gear（2）Another side center rotating be connected with locating rod（5）'s
One end, the locating rod（5）Upper movable sleeve is connected to transmission shaft（6）, the transmission shaft（6）One end be fixedly connected on second gear
（4）Center side, the transmission shaft（6）The other end be connected with sleeve assembly（7）, the second gear（4）With the first tooth
Wheel（2）Pass through chain（3）Connection.
2. a kind of deep hole nut monkey wrench according to claim 1, it is characterised in that：The sleeve assembly（7）Including
Sleeve（73）, sleeve（73）For hollow structure, the sleeve（73）Side wall central movable be plugged with transmission shaft（6）One end,
Sleeve（73）It is connect with external stability, the transmission shaft（6）Positioned at sleeve（73）One end of inner cavity offers the first groove, described
Transmission shaft（6）Side wall on be inlaid with the second electromagnet（78）, the side wall of the first groove is fixedly connected with third spring（717）'s
One end, the third spring（717）The other end be fixedly connected on the first bull stick（76）One end, first bull stick（76）'s
The other end is fixedly connected on first bevel gear（71）Center side, the first bull stick（76）Sliding plug is in the first groove, institute
State the first bull stick（76）Inside be inlaid with the first electromagnet（77）, first electromagnet（77）With the second electromagnet（78）Phase
It is corresponding, the sleeve（73）Side wall offer several through-holes, on the through-hole activity be plugged with telescopic rod（79）One end,
The telescopic rod（79）The other end be fixedly connected on locating rod（5）On, the telescopic rod（79）Upper movable sleeve is connected to the first bullet
Spring（710）, first spring（710）One end be fixedly connected on locating rod（5）On, the first spring（710）The other end it is solid
Surely it is connected to telescopic rod（79）On the side wall of telescopic end, the first bevel gear（71）If the side close to through-hole is fixedly connected with
Do shank corresponding with through-hole（75）, the first bevel gear（71）On be engaged with second bevel gear（74）, second cone
Gear（74）Center be fixedly connected with one end of the second bull stick, the other end of second bull stick is rotatably connected on sleeve（73）
Madial wall on, the second bevel gear（74）It is rotatably connected to l-shaped rod on end face far from the second bull stick（711）One
End, the l-shaped rod（711）The other end be hinged on the side of link block, the other side of link block is fixedly connected with first piston
（715）, the first piston（715）Sliding plug is in first piston cylinder（712）It is interior, the first piston cylinder（712）Side wall
On offer the first stomata（718）, first piston cylinder（712）Madial wall on be hinged with and the first stomata（718）Corresponding
One baffle（716）, the first baffle（716）Far from the first stomata（718）Side be fixedly connected with second spring（713）'s
One end, the second spring（713）The other end be fixedly connected on first piston cylinder（712）Madial wall on, it is described first live
Plug cylinder（712）Far from first bevel gear（71）Side wall perforation be connected with snorkel（714）One end, the snorkel（714）
The other end perforation be connected with second piston cylinder（719）, the second piston cylinder（719）Madial wall on be hinged with second baffle
（726）, second baffle（726）Position and snorkel（714）Position it is corresponding, the second baffle（726）Left side it is solid
Surely it is connected with the 6th spring（727）One end, the 6th spring（727）The other end be fixedly connected on second piston cylinder
（719）Madial wall on, two second piston cylinders（719）Run through on the side wall being located remotely from each other and is connected with mounting blocks（728）,
The mounting blocks（728）On offer the second groove, the side wall of second groove offers the second stomata, the mounting blocks
（728）With sleeve（73）Madial wall be fixedly connected, in second groove activity be plugged with pressing lever（722）, the pressing
Bar（722）One end activity run through sleeve（73）Side wall reach sleeve（73）Outside, pressing lever（722）The other end fix connect
It is connected to the 4th spring（720）One end, the pressing lever（722）Inside offers U-shaped hole road, the 4th spring（720）'s
The other end is fixedly connected on the bottom wall of the second groove, the second piston（721）With second piston cylinder（719）Inner wall sliding
Connection, the second piston（721）Far from mounting blocks（728）Side be respectively fixedly connected with the first electric waveguide plate（724）If with
Dry 5th spring（723）One end, the 5th spring（723）The other end be fixedly connected on fixed plate（72）On, it is described solid
Fixed board（72）On be fixedly connected with and the first electric waveguide plate（724）Corresponding second electric waveguide plate（725）.
3. a kind of deep hole nut monkey wrench according to claim 1, it is characterised in that：The extension bar（1）Upper laying
There is skid resistant course.
4. a kind of deep hole nut monkey wrench according to claim 1, it is characterised in that：The second gear（4）It is straight
Diameter is more than first gear（2）Diameter.
5. a kind of deep hole nut monkey wrench according to claim 2, it is characterised in that：Positioned at same fixed plate（72）On
The 5th spring（723）Quantity be more than six, and multiple 5th springs（723）Between be equally spaced.
6. a kind of deep hole nut monkey wrench according to claim 2, it is characterised in that：The shank（75）Far from the
One bevel gear（71）One end be conical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820083176.1U CN208005554U (en) | 2018-01-18 | 2018-01-18 | A kind of deep hole nut monkey wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820083176.1U CN208005554U (en) | 2018-01-18 | 2018-01-18 | A kind of deep hole nut monkey wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208005554U true CN208005554U (en) | 2018-10-26 |
Family
ID=63883173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820083176.1U Expired - Fee Related CN208005554U (en) | 2018-01-18 | 2018-01-18 | A kind of deep hole nut monkey wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208005554U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109822510A (en) * | 2019-03-12 | 2019-05-31 | *** | A kind of pond outlet pipe seal closure unscrews device |
| CN110142722A (en) * | 2019-05-27 | 2019-08-20 | 安徽黎搏装饰工程有限公司 | A kind of construction nut remover |
| CN110879675A (en) * | 2019-11-16 | 2020-03-13 | 湖南品触光电科技有限公司 | Jumbo size concatenation capacitive touch screen |
| CN112223186A (en) * | 2020-10-15 | 2021-01-15 | 南京工业职业技术大学 | Hand-pressing type socket wrench |
-
2018
- 2018-01-18 CN CN201820083176.1U patent/CN208005554U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109822510A (en) * | 2019-03-12 | 2019-05-31 | *** | A kind of pond outlet pipe seal closure unscrews device |
| CN110142722A (en) * | 2019-05-27 | 2019-08-20 | 安徽黎搏装饰工程有限公司 | A kind of construction nut remover |
| CN110142722B (en) * | 2019-05-27 | 2020-10-27 | 明光市众建市政工程有限公司 | Nut dismounting device for construction |
| CN110879675A (en) * | 2019-11-16 | 2020-03-13 | 湖南品触光电科技有限公司 | Jumbo size concatenation capacitive touch screen |
| CN112223186A (en) * | 2020-10-15 | 2021-01-15 | 南京工业职业技术大学 | Hand-pressing type socket wrench |
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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: 20181026 Termination date: 20220118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |