CN208416430U - Supporting leg for herringbone ladder and herringbone ladder for building - Google Patents
Supporting leg for herringbone ladder and herringbone ladder for building Download PDFInfo
- Publication number
- CN208416430U CN208416430U CN201820968437.8U CN201820968437U CN208416430U CN 208416430 U CN208416430 U CN 208416430U CN 201820968437 U CN201820968437 U CN 201820968437U CN 208416430 U CN208416430 U CN 208416430U
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- Prior art keywords
- box
- double ladder
- side frame
- spring
- bottom end
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- 238000003466 welding Methods 0.000 claims abstract description 5
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000012876 topography Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 13
- 239000003381 stabilizer Substances 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Ladders (AREA)
Abstract
The utility model relates to a supporting legs for double ladder, end box upper end opening, in the bottom of well box inserted the end box, well box inside is provided with the box, the inside a plurality of springs that are provided with of end box, the lower extreme of spring welds with the inside bottom face of end box, and the upper end and the well bottom of box of spring are connected, and the spring is compression spring, well bottom of box is provided with the bulge loop of an outside extension to end box top both sides are provided with the lug of inside extension, the bulge loop is located the lug lower extreme, it has the roating seat to go up box top right side middle part welding. The utility model also provides a double ladder for building. The utility model discloses following beneficial effect has: the end box can adapt to the topography of most unevenness, and the suction of sucking disc can make the better fixing of double ladder subaerial, does not possess the function of the fixed double ladder that can be better when using, leads to the double ladder to take place easily when using and overturn so that the injured problem of user.
Description
Technical field
The utility model relates to a kind of double ladder support leg and double ladders for building, belong to Architectural Equipment technical field skill
Art field.
Background technique
Double ladder fit up etc a kind of ascending tool of work for side space in the plane, because of it in use, preceding
Ladder bars and ground afterwards constitute an isosceles triangle, it appears that are known as " herringbone as " people " word, thus its image
Ladder ", practical double ladder have fixed double ladder and moving herringbone ladder, with the rapid development of science and technology, have also obtained technology
Improve, but the double ladder of the prior art: do not have can function that preferably adaptively the different ground of condition adapts to, cause
Double ladder use is more inconvenient in practical operation, does not have the function that can preferably fix double ladder when in use, leads to people
Word ladder is easy to happen overturning so that user is injured when in use.
Utility model content
According to the above-mentioned deficiencies in the prior art, technical problem to be solved by the utility model is: in order to solve the above problem
One of, a kind of double ladder support leg and double ladder for building are provided.
Double ladder support leg described in the utility model, it is characterised in that: including support device, the support device packet
Back box, middle box, upper box, spring and rotating seat are included, the bottom of back box upper end opening, middle box is inserted into back box, inside the middle box
It is provided with box, the back box is internally provided with multiple springs, and lower end and the back box inner bottom end face of spring are welded, spring
Upper end connect with middle cassette bottom end, spring is compressed spring, and the middle cassette bottom end is provided with one piece of outwardly extending bulge loop, and
Back box top two sides are provided with the convex block to extend internally, and the bulge loop is located at convex block lower end, the upper box top right side central weldering
It is connected to rotating seat.
The spring is provided with seven, and the spring bottom end is welded with back box inner bottom end face, and spring upper end
It is welded with middle cassette bottom end face, the middle box inner bottom two sides are provided with elastic force pearl, and the elastic force pearl is around upper box
Side bottom end, and middle box passes through elastic force pearl and upper box elastic connection.
The double ladder support leg further includes fixed device, is provided with fixed device on the outside of the support device.
The fixed device includes mounting base, telescopic rod, bolt, shaft, connecting rod and sucker, is set inside the mounting base
It is equipped with telescopic rod, lower end is provided with bolt on the left of the mounting base, and the inner end of bolt passes through mounting base and offsets with telescopic rod, installs
Seat is locked with telescopic rod by bolt, and shaft, welding on the left of the shaft bottom end are welded on the left of the telescopic rod bottom end
There is connecting rod, the connecting rod bottom end is welded with sucker, and sucker is in the bottom end of telescopic rod hereinafter, on the right side of the mounting base
It is welded in the middle part of back box left side.
The telescopic rod top end is welded with one piece of diameter, one centimetre of cylindrical limit plate bigger than telescopic rod, the mounting base
Inner hollow, and mounting base bottom face is provided with a diameter 0.5 centimetre of circular hole bigger than telescopic rod.
The upper box side bottom end is provided with a circle and is recessed inwardly 1 centimetre of hemispherical groove, and upper box side bottom end
With two walls inside middle box at a distance of 2 centimetres.
The length of the spring is 8 centimetres, and spring can be provided 50 Ns of support forces.
The length of the mounting base is 4 centimetres shorter than the height of back box, and the top end face of mounting base and mounting base top end face
In parallel.
The middle cassette bottom end is provided with one piece of 3 centimetres of bulge loop of extending outwardly, and back box top is provided in case and extends 3
Centimetre convex block, the middle box is located at convex block lower end.
The mounting base is in cylindrical shape, and installs 4 centimetres of seat height.
The elastic force pearl is nylon material, and the elastic force pearl elasticity of the material is preferably.
The telescopic rod is stainless steel material, and the telescopic rod of the material is not easy to get rusty.
The utility model is also disclosed a kind of double ladder for building, including left side frame, left side frame pedal, left side frame top plate, solid
Determine stabiliser bar, support device, fixed device, left frame, left side frame pedal and left frame top plate, a plurality of left side frame pedal to be fixed on
Between left side frame, a plurality of left side frame pedal is fixed between left frame, and left side frame top plate, left frame are provided at the top of left side frame
Top be provided with left frame top plate, left side frame top plate and left frame top plate are articulated and connected, and the bottom of left side frame and left frame is equal
Double ladder support leg is installed, the double ladder is above-mentioned double ladder support leg with support leg.
A kind of double ladder for building further includes fixed stably fixed pole, and the side of fixed stably fixed pole and left frame are hinged, Gu
The other side and the left side frame for determining stabiliser bar are hinged, and fixed stably fixed pole is provided with two, and positioned at the two sides of left side frame, two fixed stably
Fixed pole is arranged in parallel.
The left side frame top plate and left side frame are welded to connect, and left frame top plate and left frame are welded to connect, left side frame pedal
There are six being respectively provided with left frame pedal.
The bottom of the left side frame and left frame is located in corresponding rotating seat, and rotating seat by movable axis with
Left side frame, left frame rotation connection.
Working principle of the utility model is: can first be placed on the ground left frame, left side frame, then both feet trample the right side
Side frame pedal or left frame pedal make one physical efficiency and get at up to eminence, and fixed stably fixed pole can increase the stability of double ladder；When
It needs when carrying out erection double ladder on broken terrain, makes back box first with ground face contact, spring can be according to back box
Position makes the tilt angle of middle box that corresponding change occur, and so that back box is can adapt to the landform of most of out-of-flatness, when upper box quilt
When external force is suppressed, elastic force pearl can be squeezed, the deformation using elastic force pearl reduces pressure, and rotating seat can make left side
Frame, left side frame more carry out corresponding angle rotation adjustment according to the ground of different terrain, solve not and have and can preferably adapt to
The function that condition different ground in ground adapts to, cause in actual operation double ladder using more inconvenient problem, when need compared with
When to be worked on smooth ground, bolt can first be backed out, then the telescopic rod inside mounting base being pulled out, is then led to
Crossing shaft makes the sucker in connecting rod downward vertically in ground, then pushes sucker, makes sucker suction ground, the suction of sucker
Double ladder can be made preferably to fix on the ground, not have the function that can preferably fix double ladder when in use, cause
Double ladder is easy to happen when in use overturns the problem so that user's injury.
Compared with prior art, the utility model has the following beneficial effects: the utility model discloses a kind of double ladders
With support leg and double ladder for building, which makes back box first with ground face contact, and spring can be according to the position of back box
Setting makes the tilt angle of middle box that corresponding change occur, and so that back box is can adapt to the landform of most of out-of-flatness, when upper box is outer
When forcing processed, elastic force pearl can be squeezed, the deformation using elastic force pearl reduces pressure, and rotating seat can make terraced body more evidence
The ground of different terrain carries out corresponding angle rotation adjustment, solves that do not have being capable of the better adaptively different ground of condition
The function of adaptation leads to the problem that double ladder use is more inconvenient in actual operation, bolt can first be backed out, then will peace
It fills the telescopic rod inside seat to pull out, then makes the sucker in connecting rod downward vertically in ground by shaft, it then will be under sucker
Pressure, makes sucker suction ground, the suction of sucker can be such that double ladder preferably fixes on the ground, not have and when in use can
The preferably function of fixed double ladder causes double ladder to be easy to happen when in use and overturns the problem so that user's injury.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model support device schematic diagram of internal structure；
Fig. 3 is the front-end architecture schematic diagram of the utility model fixed device and support device；
Fig. 4 is the utility model mounting base schematic diagram of internal structure.
In figure: 1, left side frame 2, left side frame pedal 3, left side frame top plate 4, fixed stably fixed pole 5, support device
51, back box 52, middle box 53, upper box 54, spring 55, elastic force pearl 56, rotating seat 6, fixed device 61, installation
Seat 62, telescopic rod 63, bolt 64, shaft 65, connecting rod 66, sucker 7, left frame 8, left frame pedal
9, left frame top plate 100, limit plate 101, circular hole 103, bulge loop 104, convex block.
Specific embodiment
The utility model is described further with reference to the accompanying drawing:
Below by way of specific embodiment, the utility model is described in further detail, but not to limit the utility model, all
Within spirit of that invention and principle, any modification, equivalent replacement, improvement and so on should be included in the utility model
Within protection scope.
Embodiment one
As shown in Figs 1-4, the double ladder support leg, including support device 5, the support device 5 include back box 51,
Middle box 52, upper box 53, spring 54 and rotating seat 56,51 upper end opening of back box, middle box 52 bottom insertion back box 51 in, it is described in
Box 52 is internally provided with box 53, and the back box 51 is internally provided with multiple springs 54, inside the lower end of spring 54 and back box 51
Bottom face is welded, and the upper end of spring 54 is connect with middle 52 bottom end of box, and spring 54 is compressed spring, and middle 52 bottom end of box is set
It is equipped with one piece of outwardly extending bulge loop 103, and 51 top two sides of back box are provided with the convex block 104 to extend internally, the bulge loop
103 are located at 104 lower end of convex block, and the upper 53 top right side central of box is welded with rotating seat 56.
In the present embodiment, the spring 54 is provided with seven, and 54 bottom end of spring and 51 inner bottom end face of back box carry out
Welding, and 54 upper end of spring is welded with middle 52 bottom face of box, and the middle 52 inner bottom two sides of box are provided with elastic force
Pearl 55, the elastic force pearl 55 is around upper 53 side bottom end of box, and middle box 52 passes through elastic force pearl 55 and upper 53 elastic connection of box；
The double ladder support leg further includes fixed device 6, fixed device 6 is provided on the outside of the support device 5；It is described
Fixed device 6 includes mounting base 61, telescopic rod 62, bolt 63, shaft 64, connecting rod 65 and sucker 66, in the mounting base 61
Portion is provided with telescopic rod 62, and the 61 left side lower end of mounting base is provided with bolt 63, the inner end of bolt 63 pass through mounting base 61 with
Telescopic rod 62 offsets, and mounting base 61 is locked with telescopic rod 62 by bolt 63, is welded on the left of 62 bottom end of telescopic rod
Shaft 64,64 bottom end of the shaft left side are welded with connecting rod 65, and 65 bottom end of connecting rod is welded with sucker 66, and sucker
66 bottom ends in telescopic rod 62 are hereinafter, 61 right side of the mounting base is welded in the middle part of 51 left side of back box；The telescopic rod 62
Top is welded with 62 big one centimetres than telescopic rod of one piece of diameter of cylindrical limit plate 100,61 inner hollow of mounting base, and
And 61 bottom face of mounting base is provided with 62 big 0.5 centimetres than telescopic rod of a diameter of circular hole 101；The 53 side bottom end of upper box
It is provided with a circle to be recessed inwardly 1 centimetre of hemispherical groove, and 53 side bottom end of upper box and 52 two walls of inside of middle box are at a distance of 2 lis
Rice；The length of the spring 54 is 8 centimetres, and spring 54 can be provided 50 Ns of support forces；The length ratio of the mounting base 61
The height of back box 51 is 4 centimetres short, and the top end face of mounting base 61 is parallel with 61 top end face of mounting base；52 bottom end of middle box is set
It is equipped with one piece of 3 centimetres of bulge loop 103 of extending outwardly, and 51 top of back box is provided with and extends 3 centimetres of convex block 104 in case, institute
It states middle box 52 and is located at 104 lower end of convex block；The mounting base 61 is in cylindrical shape, and 61 high 4 centimetres of mounting base；The elastic force pearl
55 be nylon material, and 55 elasticity of elastic force pearl of the material is preferably；The telescopic rod 62 is stainless steel material, the telescopic rod of the material
62 are not easy to get rusty.
Wherein, 62 top of telescopic rod is welded with 62 big one centimetres than telescopic rod of one piece of diameter of cylindrical limit plate
100,61 inner hollow of mounting base, and 61 bottom face of mounting base is provided with a diameter than 62 big 0.5 centimetres of telescopic rod
Circular hole 101, make telescopic rod 62 without departing from mounting base 61.
Wherein, the 53 side bottom end of upper box is provided with a circle and is recessed inwardly 1 centimetre of hemispherical groove 102, and on
53 side bottom end of box and 52 two walls of inside of middle box enable elastic force pearl 55 preferably to place at a distance of 2 centimetres.
Wherein, the length of the spring 54 is 8 centimetres, and spring 54 can be provided 50 Ns of support forces, enable middle box 52
What is be enough supported is more preferable.
Wherein, the length of the mounting base 61 is 4 centimetres shorter than the height of back box 51, and the top end face and peace of mounting base 61
It is parallel to fill 61 top end face of seat, recycles telescopic rod 62 preferably.
Wherein, 52 bottom end of middle box is provided with one piece of 3 centimetres of bulge loop 103 of extending outwardly, and 51 top of back box is set
It is equipped with the convex block 104 of 3 centimetres of extension in case, the middle box 52 is located at 104 lower end of convex block, makes middle box 52 without departing from back box 51.
Wherein, the mounting base 61 is in cylindrical shape, and 61 high 4 centimetres of mounting base, keeps mounting base 61 more beautiful.
Wherein, the elastic force pearl 55 is nylon material, and 55 elasticity of elastic force pearl of the material preferably, enables double ladder for building
It is enough preferably to use.
Wherein, the telescopic rod 62 is stainless steel material, and the telescopic rod 62 of the material is not easy to get rusty, and makes double ladder for building
It is able to use more long.
The invention also discloses double ladder for building, including it is left side frame 1, left side frame pedal 2, left side frame top plate 3, solid
Determine stabiliser bar 4, support device 5, fixed device 6, left frame 7, left side frame pedal 8 and left frame top plate 9, a plurality of left side frame pedal
2 are fixed between left side frame 1, and a plurality of left side frame pedal 8 is fixed between left frame 7, and the top of left side frame 1 is provided with left side frame
Top plate 3, the top of left frame 7 are provided with left frame top plate 9, and left side frame top plate 3 and left frame top plate 9 are articulated and connected, left side frame 1
It is mounted on double ladder support leg with the bottom of left frame 7, the double ladder support leg is that above-mentioned double ladder supports
Foot；A kind of double ladder for building further includes fixed stably fixed pole 4, and the side of fixed stably fixed pole 4 and left frame 7 are hinged, fixed
The other side of stabiliser bar 4 and left side frame 1 are hinged, and fixed stably fixed pole 4 is provided with two, positioned at the two sides of left side frame 1, two fixations
Stabiliser bar 4 is arranged in parallel；The left side frame top plate 3 is welded to connect with left side frame 1, and left frame top plate 9 and the welding of left frame 7 connect
It connects, there are six left side frame pedal 2 and left frame pedal 8 are respectively provided with；The bottom of the left side frame 1 and left frame 7 is located at pair
In the rotating seat 56 answered, and rotating seat 56 is rotatablely connected by movable axis and left side frame 1, left frame 7.
Wherein, described in this patent: spring 54 is a kind of using the elastic machine components come work, is made of elastic material
Part deformation occurs under external force, restore to the original state again after removing external force, the complicated multiplicity of the type of spring 54, by shape
Point, mainly there are helical spring, scroll spring, flat spring, heterotypic spring etc.；Sucker 56, also known as vacuum lifting tool are that vacuum equipment is held
One of row device, sucker material are manufactured using nitrile rubber, have biggish breaking tenacity, thus are widely used in various vacuum holds
In equipment.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.This
The technical staff of industry is retouched in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
That states merely illustrates the principles of the invention, and on the premise of not departing from the spirit and scope of the utility model, the utility model can also
There are various changes and modifications, these various changes and improvements fall within the scope of the claimed invention.The utility model is wanted
Protection scope is asked to be defined by the appending claims and its equivalent thereof.
Claims (10)
1. double ladder support leg, it is characterised in that: including support device (5), the support device (5) include back box (51),
Bottom is inserted into the bottom of middle box (52), upper box (53), spring (54) and rotating seat (56), back box (51) upper end opening, middle box (52)
In box (51), the middle box (52) is internally provided with box (53), and the back box (51) is internally provided with multiple springs (54), bullet
The lower end of spring (54) is connect with back box (51) inner bottom end face, and the upper end of spring (54) is connect with middle box (52) bottom end, spring
It (54) is compressed spring, middle box (52) bottom end is provided with one piece of outwardly extending bulge loop (103), and back box (51) top
Two sides are provided with the convex block (104) to extend internally, and the bulge loop (103) is located at convex block (104) lower end, upper box (53) top
Right side central is welded with rotating seat (56).
2. double ladder support leg according to claim 1, it is characterised in that: the spring (54) is provided with seven, institute
Spring (54) bottom end is stated to be welded with back box (51) inner bottom end face, and spring (54) upper end and middle box (52) bottom face into
Row welding, middle box (52) the inner bottom two sides are provided with elastic force pearl (55), and the elastic force pearl (55) is around upper box
(53) side bottom end, and middle box (52) passes through elastic force pearl (55) and upper box (53) elastic connection.
3. double ladder support leg according to claim 2, it is characterised in that: further include fixed device (6), the support
Fixed device (6) are provided on the outside of device (5).
4. double ladder support leg according to claim 3, it is characterised in that: the fixed device (6) includes mounting base
(61), telescopic rod (62), bolt (63), shaft (64), connecting rod (65) and sucker (66), the internal setting of the mounting base (61)
Have telescopic rod (62), lower end is provided with bolt (63) on the left of the mounting base (61), and the inner end of bolt (63) passes through mounting base
(61) it offsets with telescopic rod (62), mounting base (61) is locked with telescopic rod (62) by bolt (63), the telescopic rod
(62) it is welded with shaft (64) on the left of bottom end, is welded with connecting rod (65), the connecting rod on the left of shaft (64) bottom end
(65) bottom end is welded with sucker (66), and sucker (66) is in the bottom end of telescopic rod (62) hereinafter, the mounting base (61) is right
It is welded in the middle part of side and back box (51) left side.
5. double ladder support leg according to claim 4, it is characterised in that: telescopic rod (62) top is welded with one
The cylindrical limit plate (100) that one centimetre bigger than telescopic rod (62) of block diameter, mounting base (61) inner hollow, and install
Seat (61) bottom face is provided with a diameter 0.5 centimetre of circular hole (101) bigger than telescopic rod (62).
6. double ladder support leg according to claim 5, it is characterised in that: upper box (53) the side bottom end is provided with
One circle is recessed inwardly 1 centimetre of hemispherical groove, and upper box (53) side bottom end and middle box (52) internal two walls are at a distance of 2 lis
Rice.
7. a kind of double ladder for building, it is characterised in that: including left side frame (1), left side frame pedal (2), left side frame top plate (3),
Fixed stably fixed pole (4), support device (5), fixed device (6), left frame (7), left side frame pedal (8) and left frame top plate (9),
A plurality of left side frame pedal (2) is fixed between left side frame (1), and a plurality of left side frame pedal (8) is fixed between left frame (7), right
It is provided at the top of side frame (1) left side frame top plate (3), left frame top plate (9), left side frame top is provided at the top of left frame (7)
Plate (3) and left frame top plate (9) are articulated and connected, and the bottom of left side frame (1) and left frame (7) is mounted on double ladder support
Foot, the double ladder are double ladder support leg as claimed in any one of claims 1 to 6 with support leg.
8. double ladder for building according to claim 7, it is characterised in that: further include fixed stably fixed pole (4), fixing-stable
The side of bar (4) and left frame (7) hingedly, the other side and left side frame (1) of fixed stably fixed pole (4) hingedly, fixed stably fixed pole (4)
Two are provided with, the two sides of left side frame (1) are located at, two fixed stably fixed poles (4) are arranged in parallel.
9. double ladder for building according to claim 8, it is characterised in that: the left side frame top plate (3) and left side frame (1)
It is welded to connect, left frame top plate (9) and left frame (7) are welded to connect, and left side frame pedal (2) and left frame pedal (8) are respectively provided with
There are six.
10. double ladder for building according to claim 9, it is characterised in that: the left side frame (1) and left frame (7)
Bottom is located in corresponding rotating seat (56), and rotating seat (56) passes through movable axis and left side frame (1), left frame (7)
Rotation connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820968437.8U CN208416430U (en) | 2018-06-22 | 2018-06-22 | Supporting leg for herringbone ladder and herringbone ladder for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820968437.8U CN208416430U (en) | 2018-06-22 | 2018-06-22 | Supporting leg for herringbone ladder and herringbone ladder for building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208416430U true CN208416430U (en) | 2019-01-22 |
Family
ID=65108082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820968437.8U Expired - Fee Related CN208416430U (en) | 2018-06-22 | 2018-06-22 | Supporting leg for herringbone ladder and herringbone ladder for building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208416430U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113206633A (en) * | 2021-04-29 | 2021-08-03 | 石河子大学 | Flat plate type solar bracket |
-
2018
- 2018-06-22 CN CN201820968437.8U patent/CN208416430U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113206633A (en) * | 2021-04-29 | 2021-08-03 | 石河子大学 | Flat plate type solar bracket |
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| 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: 20190122 Termination date: 20190622 |
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| CF01 | Termination of patent right due to non-payment of annual fee |