CN210632416U - Novel roller sand screening machine - Google Patents
Novel roller sand screening machine Download PDFInfo
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- CN210632416U CN210632416U CN201921378995.XU CN201921378995U CN210632416U CN 210632416 U CN210632416 U CN 210632416U CN 201921378995 U CN201921378995 U CN 201921378995U CN 210632416 U CN210632416 U CN 210632416U
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Abstract
The utility model relates to a concrete screening sand equipment, in particular to novel cylinder sand sieving machine, it includes skeleton and first screen cloth, the skeleton is the loop configuration and is provided with a plurality ofly, the interval is equipped with a plurality of through-holes on the skeleton, a plurality of skeleton intervals set up and the centre of a circle is on same straight line, first screen cloth is fixed at a plurality of skeleton outsides and is formed cylindric structure, still include the change, second screen cloth and regulating part, the change is provided with two, the change is formed for bar form head and the tail rigid coupling, the internal diameter of change is unanimous with the external diameter of skeleton and the cover is established on the skeleton that is located the tip, second screen cloth mesh diameter is the same with first screen cloth mesh diameter, the second screen cloth encircles and sets up and fix on two changes, second screen cloth and first screen cloth laminating setting, the regulating part is fixed on the change, its output pierces through change and skeleton through-hole is connected the two. The utility model has the characteristics of be convenient for sieve the grit of different particle diameters according to the requirement of concrete.
Description
Technical Field
The utility model relates to a concrete sieve sand equipment, in particular to novel cylinder sand sieving machine.
Background
When the concrete is manufactured, the sand stone which is one of the raw materials of the concrete is screened by using a roller sand screening machine, and the sand stone with the grain diameter larger than the use standard is screened.
At present, drum sand screening machine includes the frame, the swivel mount, motor and screen cloth, the frame is frame construction, the swivel mount rotates and sets up in the frame, the swivel mount includes the skeleton, connecting rod and pivot, the skeleton is the ring form and is provided with a plurality ofly, the connecting rod is provided with a plurality ofly, the one end of a plurality of connecting rods is fixed in the inboard of skeleton and the direction of radius coincidence of its length and skeleton, the pivot setting is in the inside of a plurality of skeletons and the other end rigid coupling with a plurality of connecting rods, the axis of pivot and the axis coincidence of a plurality of skeletons, the motor is fixed in the frame and its output is connected with the pivot, the screen cloth encircles and fixes the outside that.
The above prior art solutions have the following drawbacks: because the types and the purposes of the concrete are different, the gravels with different grain diameters can be selected to prepare the concrete, and screens with different apertures can be used when the gravels with different grain diameters are screened, generally, the screens are fixed on a framework by welding or bolts, the screens with different apertures need to be repeatedly installed and disassembled, and the disassembling and assembling process is complicated and inconvenient; in addition, a plurality of roller sand screeners with different screen mesh apertures can be purchased, which can increase the production cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel cylinder sand sieving machine, it has the characteristics that are convenient for sieve the grit of different particle diameters according to the requirement of concrete.
The above object of the present invention can be achieved by the following technical solutions: the utility model provides a novel drum sand sieving machine, includes skeleton and first screen cloth, the skeleton is ring circular structure and is provided with a plurality ofly, and the spaced apart a plurality of through-holes that are equipped with on the skeleton, and a plurality of skeleton intervals set up and the centre of a circle is on same straight line, first screen cloth is fixed in a plurality of skeleton outsides and is formed cylindric structure, still includes change, second screen cloth and regulating part, the change is provided with two, and the change forms for bar form head and the tail rigid coupling, and the internal diameter of change is unanimous with the external diameter of skeleton and the cover is established on the skeleton that is located the tip, second screen cloth mesh diameter is the same with first screen cloth mesh diameter, and the second screen cloth encircles the setting and fixes on two changes, and second screen cloth and the setting of laminating of first screen cloth, the regulating part is fixed on the change, and its output pierces through change and skeleton.
Through adopting above-mentioned technical scheme, when the grit that needs the screening particle diameter is different, take out the through-hole of skeleton with the output of regulating part, then relative rotation swivel, make the mesh between first screen cloth and the second screen cloth take place the dislocation, the interval space between the first screen cloth and the second screen cloth mesh after taking place the dislocation changes, the grit adjusts the space through the particle diameter in mesh clearance as required, then insert the output of regulating part in the through-hole that corresponds on the skeleton again, finally make second screen cloth and first screen cloth relatively fixed, and then can make the requirement of concrete, be convenient for sieve the grit of different particle diameters, moreover, the steam generator is simple in structure, and the operation process is convenient.
The utility model discloses further set up to: the regulating part includes barrel, inserted bar, horizontal pole and spring, the one end of barrel is open end and the other end is the blind end, and its open end is fixed on the conversion, has seted up two bar openings along its length direction correspondence on the section of thick bamboo wall of barrel, the inserted bar is set up in the barrel by the open end of barrel, the horizontal pole pierces through two bar openings respectively and is located the one end fixed connection in the barrel with the inserted bar, the spring is and is set up in the barrel by compression state, its both ends respectively with the blind end and the horizontal pole butt of barrel to promote the horizontal pole to the barrel open end.
Through adopting above-mentioned technical scheme, the inserted bar is stably inserted in the through-hole of skeleton can be guaranteed to the spring of compressed, and then makes and stablizes the connection between change and the skeleton, when needs adjust first screen cloth and second screen cloth, with hand edge strip open-ended length direction pulling horizontal pole, the horizontal pole further compresses the spring and drives the inserted bar and break away from the through-hole, simple structure is convenient for adjust between change and the skeleton.
The utility model discloses further set up to: two limit openings are formed in the barrel body and are correspondingly arranged, the length direction of the limit openings is perpendicular to that of the strip-shaped openings, one end of each limit opening is communicated with one end, close to the closed end of the barrel body, of each strip-shaped opening, and the cross rod can be located in each limit opening.
Through adopting above-mentioned technical scheme, when the staff adjusted the swivel, can stimulate the horizontal pole earlier and rotate the horizontal pole and make it be located two spacing openings simultaneously, and then make the spring can not promote the horizontal pole again and make the inserted bar insert once more on the skeleton, and then the staff of being convenient for can loosen the horizontal pole, uses both hands to adjust first screen cloth and second screen cloth.
The utility model discloses further set up to: the first screen is obliquely arranged from one end to the other end.
Through adopting above-mentioned technical scheme, when screening the grit, pour the grit that needs the screening in to first screen cloth from the ascending one end of slope, when accomplish the screening back to the grit, the particle diameter is great and can't discharge in the screen cloth from the grit of first screen cloth and second screen cloth can be under the effect of self gravity, and then make things convenient for the staff to clear up the grit in to first screen cloth.
The utility model discloses further set up to: and a blocking edge is fixedly arranged on the framework at the lower end of the first screen in an inclined manner, and the blocking edge is abutted against the rotating ring at the lower end.
Through adopting above-mentioned technical scheme, and then provide the support to second screen cloth and two swivels, effectively reduce the second screen cloth that is in the tilt state and two swivels under self gravity, exert the power on the regulating part output in the decurrent direction of slope.
The utility model discloses further set up to: a first handle is fixedly arranged on the framework, and a second handle is fixedly arranged on the rotating ring.
Through adopting above-mentioned technical scheme, when the staff need adjust first screen cloth and second screen cloth, can hold the first in command and the second in command respectively by both hands, and then be convenient for adjust both, it is comparatively convenient during the use.
The utility model discloses further set up to: still include fixed plate, motor, pivot and hopper, the fixed plate is fixed in the frame, the motor is fixed to be set up on the fixed plate, the pivot sets up in a plurality of skeletons and the coincidence of the centre of a circle place straight line of its axis direction and a plurality of skeletons, and the one end of pivot and the output fixed connection of motor are provided with a plurality of connecting rods in the pivot, and is a plurality of the one end of connecting rod is fixed on the global of pivot and the other end is fixed on the skeleton, the length direction of connecting rod and the length direction mutually perpendicular of pivot, the hopper is installed in the frame and is located the below of first screen cloth, and uncovered and the uncovered great of upper end has all been seted up at.
Through adopting above-mentioned technical scheme, when screening the grit, switch on motor power, the output of motor drives the pivot and together rotates, and the pivot makes first screen cloth and second screen cloth pivot and then realize the screening to the grit through the connecting rod, and after the grit passed through the second screen cloth, the grit fell into in the hopper, and then is convenient for collect the grit, simple structure, and it is comparatively convenient to use.
The utility model discloses further set up to: the frame includes casing, strengthening rib and landing leg, and the casing cover is established on the fixed plate, and the motor setting just is located the casing on the fixed plate, and the strengthening rib is provided with two, and the one end of two strengthening ribs is fixed in the frame and the other end is fixed in the lower part of fixed plate, and the landing leg is provided with many, and many landing legs are evenly fixed in the frame lower part.
Through adopting above-mentioned technical scheme, the casing can effectively reduce by the damage of discharged grit to the motor, and the strengthening rib further provides stability to the fixed plate that is provided with the motor, and many landing legs still provide installation space and ejection of compact space for the hopper when rising the frame height, make things convenient for the staff to use.
To sum up, the utility model discloses following beneficial effect has:
1. through arranging the rotating ring, the second screen and the adjusting piece, the rotating ring is relatively rotated, so that the meshes between the first screen and the second screen are staggered, and then the output end of the adjusting piece is inserted into the corresponding through hole on the framework, so that the sand stones with different particle sizes can be conveniently screened, the structure is simple, and the operation process is convenient;
2. by arranging the cylinder body, the inserted rod, the cross rod and the spring, the structure is simple, and the adjustment between the rotating ring and the framework is convenient;
3. through setting up two spacing openings, stimulate the horizontal pole earlier and rotatory horizontal pole makes it be located two spacing openings simultaneously, and then makes the spring can not promote the horizontal pole again and make the inserted bar insert on the skeleton once more.
Drawings
FIG. 1 is a schematic structural diagram of a novel roller sand screening machine;
FIG. 2 is a schematic diagram of a new drum sander with a second screen and a portion of the housing removed;
FIG. 3 is a schematic view of a projected configuration of the first screen, the second screen and the adjuster;
FIG. 4 is a schematic view of a protruding structure of the adjusting member;
fig. 5 is a partially enlarged schematic view of a portion a in fig. 2.
In the figure, 1, a skeleton; 11. blocking edges; 12. a first handle; 2. a first screen; 3. rotating the ring; 31; a second handle; 4. a second screen; 5. an adjustment member; 51. a barrel; 511. a strip-shaped opening; 512. limiting the opening; 52. inserting a rod; 53. a cross bar; 54. a spring; 6. a frame; 61. a fixing plate; 62. a housing; 63. reinforcing ribs; 64. a support leg; 7. a motor; 8. a rotating shaft; 81. a connecting rod; 9. a hopper; 91. clamping a plate; 92. and (4) inserting plates.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Examples
With reference to fig. 1 and 2, the utility model discloses a novel drum sand sieving machine, which comprises a framework 1, a first screen 2, a swivel 3, a second screen 4 and an adjusting part 5.
Skeleton 1 is the ring circular structure and is provided with a plurality ofly, the interval is equipped with a plurality of through-holes on the skeleton 1, 1 intervals of a plurality of skeletons set up and the centre of a circle is on same straight line, first screen cloth 2 is fixed at 1 outsides of a plurality of skeletons and is formed cylindric structure, change 3 is provided with two, change 3 is that the rigid coupling of bar form head and the tail forms, change 3 internal diameter and skeleton 1's external diameter are unanimous and the cover is established on the skeleton 1 that is located the tip, second screen cloth 4 mesh diameter is the same with first screen cloth 2 mesh diameter, second screen cloth 4 encircles the setting and fixes on two change 3, second screen cloth 4 sets up with the laminating of first screen cloth 2, regulating part 5 is fixed on change 3, its output pierces through change 3 and skeleton 1 through-hole and is connected.
During the use, when the grit that needs the screening particle diameter is different, take out the output of regulating part 5 from the through-hole of skeleton 1, then relative rotation change 3, make the mesh between first screen cloth 2 and the second screen cloth 4 take place the dislocation, take place the interval space between the dislocation back first screen cloth 2 and the second screen cloth 4 mesh and change, the grit adjusts the space through the particle diameter in mesh clearance as required, then insert the through-hole that corresponds on the skeleton 1 with the output of regulating part 5 again, finally make second screen cloth 4 and first screen cloth 2 relatively fixed, and then can make the requirement of concrete, be convenient for sieve the grit of different particle diameters, moreover, the steam generator is simple in structure, the operation process is convenient.
Referring to fig. 2, first screen cloth 2 is set up by one end to the other end slope, when sieving the grit, pours into the grit that needs the screening in to first screen cloth 2 from the ascending one end of slope, when accomplishing the screening back to the grit, the particle diameter is great and can't be under the effect of self gravity through the grit of first screen cloth 2 with second screen cloth 4, is convenient for discharge from the screen cloth, and then makes things convenient for the staff to clear up the grit in the first screen cloth 2.
Referring to fig. 2, a blocking edge 11 is fixedly arranged on the framework 1 at the downward inclined end of the first screen 2, the blocking edge 11 abuts against the rotary ring 3 at the lower end, so that the second screen 4 and the two rotary rings 3 are supported, and the force applied to the output end of the adjusting part 5 in the downward inclined direction under the gravity of the second screen 4 and the two rotary rings 3 in the inclined state is effectively reduced.
Referring to fig. 3, a first handle 12 is fixedly arranged on the framework 1, a second handle 31 is fixedly arranged on the swivel 3, when a worker needs to adjust the first screen 2 and the second screen 4, the worker can respectively hold the first handle 12 and the second handle 31 with two hands, so that the worker can conveniently adjust the first handle 12 and the second handle, and the use is convenient.
Referring to fig. 4, the adjusting member 5 includes a barrel 51, an insertion rod 52, a cross rod 53 and a spring 54, wherein one end of the barrel 51 is an open end and the other end is a closed end, the open end is fixed on the conversion, two strip-shaped openings 511 are correspondingly formed on the barrel wall of the barrel 51 along the length direction thereof, the insertion rod 52 is disposed in the barrel 51 from the open end of the barrel 51, the cross rod 53 penetrates through the two strip-shaped openings 511 respectively and is fixedly connected with one end of the insertion rod 52 located in the barrel 51, the spring 54 is disposed in the barrel 51 in a compressed state, and both ends thereof are abutted against the closed end of the barrel 51 and the cross rod 53 respectively and push the cross rod 53 towards the open end of the barrel 51.
During the use, the spring 54 of compressed can guarantee that inserted bar 52 stably inserts in the through-hole of skeleton 1, and then makes and stablizes between swivel 3 and the skeleton 1 to be connected, when needs adjust first screen cloth 2 and second screen cloth 4, with the hand along the length direction pulling horizontal pole 53 of bar opening 511, horizontal pole 53 further compresses spring 54 and drives inserted bar 52 and break away from the through-hole, simple structure is convenient for adjust between swivel 3 and the skeleton 1.
Referring to fig. 4, in actual use, when adjusting the swivel 3, a worker needs to hold the cross bar 53 by hand after pulling the cross bar 53, then the two are rotatably adjusted, which is inconvenient to use, for this reason, two limit openings 512 are arranged on the cylinder body 51, the two limit openings 512 are correspondingly arranged, the length direction of the two limit openings 512 is vertical to the length direction of the strip-shaped opening 511, one end of the limit opening 512 is communicated with one end of the strip-shaped opening 511 close to the closed end of the cylinder body 51, the cross rod 53 can be positioned in the limit opening 512, when a worker adjusts the rotating ring 3, the crossbar 53 may be pulled first and the crossbar 53 may be rotated to be simultaneously positioned in the two retaining openings 512, so that the spring 54 can no longer push the cross bar 53 and the insertion rod 52 is inserted again on the frame 1, and then be convenient for the staff can loosen horizontal pole 53, use both hands to adjust first screen cloth 2 and second screen cloth 4.
Combine fig. 2, fig. 3, a novel cylinder sand sieving machine still includes fixed plate 61, motor 7, pivot 8 and hopper 9, fixed plate 61 is fixed in frame 6, motor 7 is fixed to be set up on fixed plate 61, pivot 8 sets up in a plurality of skeletons 1 and the centre of a circle place sharp coincidence of its axis direction and a plurality of skeletons 1, the one end of pivot 8 and the output fixed connection of motor 7, be provided with a plurality of connecting rods 81 in the pivot 8, the one end of a plurality of connecting rods 81 is fixed on pivot 8 global and the other end is fixed on skeleton 1, the length direction of connecting rod 81 and the length direction mutually perpendicular of pivot 8, hopper 9 is installed in frame 6 and is located the below of first screen cloth 2, uncovered and uncovered great of upper end has all been seted up at the both ends of hopper 9.
When screening the grit, switch on motor 7 power, motor 7's output drives pivot 8 and rotates together, and pivot 8 makes first screen cloth 2 and second screen cloth 4 pivot 8 and then realize the screening to the grit through connecting rod 81, and after the grit passed through second screen cloth 4, the grit fell into in the hopper 9, and then is convenient for collect the grit, simple structure, and it is comparatively convenient to use.
Preferably, motor 7 sets up the one end at first screen cloth 2 downward sloping, and then when screening the grit, the staff can pour the grit into first screen cloth 2 from the ascending one end of first screen cloth 2 slope in, and motor 7 is located the other end of first screen cloth 2, is difficult for hindering the staff to pour the grit into in first screen cloth 2.
Referring to fig. 2, the frame 6 includes a housing 62, two reinforcing ribs 63 and a plurality of supporting legs 64, the housing 62 covers the fixing plate 61, the motor 7 is disposed on the fixing plate 61 and located in the housing 62, one end of each of the two reinforcing ribs 63 is fixed to the frame 6, the other end of each of the two reinforcing ribs 63 is fixed to the lower portion of the fixing plate 61, the plurality of supporting legs 64 are disposed, and the plurality of supporting legs 64 are uniformly fixed to the lower portion of the frame 6.
Referring to fig. 5, the hopper 9 is provided with two clamping plates 91 and an inserting plate 92, the two clamping plates 91 are parallel to each other in the length direction and are fixed at an opening at the lower end of the hopper 9, the cross section of each clamping plate 91 is L-shaped, the two L-shaped openings are arranged oppositely, and the inserting plate 92 can be inserted into the openings of the two oppositely arranged clamping plates 91 and can block the opening at the lower end of the hopper 9.
Carry out the sieve branch to the grit, can not in time collect 9 exhaust gravels of hopper when the staff, insert picture peg 92 on two cardboard 91 and plug up 9 lower extremes of hopper uncovered, can effectively reduce the grit and fall the subaerial condition, and then reduce staff's later stage and collect subaerial gravel again, reduce staff's unnecessary work load, the staff of being convenient for uses.
The embodiment of this embodiment is the utility model discloses preferred embodiment is not according to this restriction the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a novel drum sand sieving machine, includes skeleton (1) and first screen cloth (2), skeleton (1) is ring annular structure and is provided with a plurality ofly, and the interval is equipped with a plurality of through-holes on skeleton (1), and a plurality of skeleton (1) intervals set up and the centre of a circle is on same straight line, first screen cloth (2) are fixed in a plurality of skeleton (1) outsides and are formed cylindric structure, its characterized in that: still include change (3), second screen cloth (4) and regulating part (5), change (3) are provided with two, and change (3) form for bar form head and the tail rigid coupling, and the internal diameter of change (3) is unanimous with the external diameter of skeleton (1) and the cover is established on skeleton (1) that is located the tip, second screen cloth (4) mesh diameter is the same with first screen cloth (2) mesh diameter, and second screen cloth (4) encircle to set up and fix on two change (3), and second screen cloth (4) and first screen cloth (2) laminating set up, regulating part (5) are fixed on change (3), and its output pierces through change (3) and skeleton (1) through-hole is connected the two.
2. The novel drum sand screen of claim 1, characterized in that: adjusting part (5) include barrel (51), inserted bar (52), horizontal pole (53) and spring (54), the one end of barrel (51) is open end and the other end is the blind end, and its open end is fixed in the conversion, has seted up two bar openings (511) along its length direction correspondence on the section of thick bamboo wall of barrel (51), inserted bar (52) set up in barrel (51) by the open end of barrel (51), horizontal pole (53) pierce through two bar openings (511) respectively and lie in the one end fixed connection of barrel (51) with inserted bar (52), spring (54) are set up in barrel (51) by compression state, and its both ends respectively with the blind end and the horizontal pole (53) butt of barrel (51) to promote horizontal pole (53) to barrel (51) open end.
3. The novel roller sand screen of claim 2, characterized in that: two limiting openings (512) are formed in the barrel body (51), the two limiting openings (512) are correspondingly arranged and are perpendicular to the length direction of the strip-shaped opening (511), one end of each limiting opening (512) is communicated with one end, close to the closed end of the barrel body (51), of the strip-shaped opening (511), and the cross rod (53) can be located in the limiting opening (512).
4. The novel drum sand screen of claim 1, characterized in that: the first screen (2) is obliquely arranged from one end to the other end.
5. The novel roller sand screen of claim 4, characterized in that: the framework (1) which is positioned at the lower end of the first screen (2) in an inclined manner is fixedly provided with a blocking edge (11), and the blocking edge (11) is abutted against the rotating ring (3) at the lower end.
6. The novel roller sand screen of claim 5, characterized in that: a first handle (12) is fixedly arranged on the framework (1), and a second handle (31) is fixedly arranged on the rotating ring (3).
7. The new drum sand screen according to claim 1 or 6, characterized in that: also comprises a fixed plate (61), a motor (7), a rotating shaft (8) and a hopper (9), the fixing plate (61) is fixed on the frame (6), the motor (7) is fixedly arranged on the fixing plate (61), the rotating shaft (8) is arranged in the plurality of frameworks (1), the axis direction of the rotating shaft coincides with the straight line of the circle centers of the plurality of frameworks (1), one end of the rotating shaft (8) is fixedly connected with the output end of the motor (7), the rotating shaft (8) is provided with a plurality of connecting rods (81), one ends of the connecting rods (81) are fixed on the circumferential surface of the rotating shaft (8) and the other ends of the connecting rods are fixed on the frameworks (1), the length direction of the connecting rods (81) is mutually vertical to the length direction of the rotating shaft (8), hopper (9) are installed in frame (6) and are located the below of first screen cloth (2), and uncovered and the uncovered great of upper end have all been seted up at the both ends of hopper (9).
8. The new drum sand screen of claim 7, characterized in that: frame (6) include casing (62), strengthening rib (63) and landing leg (64), and casing (62) cover is established on fixed plate (61), and motor (7) set up on fixed plate (61) and lie in casing (62), and strengthening rib (63) are provided with two, and the one end of two strengthening ribs (63) is fixed in frame (6) and the other end is fixed in the lower part of fixed plate (61), and landing leg (64) are provided with many, and many landing legs (64) are evenly fixed in frame (6) lower part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921378995.XU CN210632416U (en) | 2019-08-22 | 2019-08-22 | Novel roller sand screening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921378995.XU CN210632416U (en) | 2019-08-22 | 2019-08-22 | Novel roller sand screening machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210632416U true CN210632416U (en) | 2020-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921378995.XU Expired - Fee Related CN210632416U (en) | 2019-08-22 | 2019-08-22 | Novel roller sand screening machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210632416U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113599885A (en) * | 2021-07-21 | 2021-11-05 | 中煤科工集团西安研究院有限公司 | Integrated anti-blocking screen device with continuously adjustable |
| CN116329068A (en) * | 2023-05-30 | 2023-06-27 | 济南冠天机电设备有限公司 | Gangue sorting equipment with adjustable specification |
-
2019
- 2019-08-22 CN CN201921378995.XU patent/CN210632416U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113599885A (en) * | 2021-07-21 | 2021-11-05 | 中煤科工集团西安研究院有限公司 | Integrated anti-blocking screen device with continuously adjustable |
| CN113599885B (en) * | 2021-07-21 | 2022-06-24 | 中煤科工集团西安研究院有限公司 | Integrated anti-blocking screen device with continuously adjustable |
| CN116329068A (en) * | 2023-05-30 | 2023-06-27 | 济南冠天机电设备有限公司 | Gangue sorting equipment with adjustable specification |
| CN116329068B (en) * | 2023-05-30 | 2023-08-15 | 济南冠天机电设备有限公司 | Gangue sorting equipment with adjustable specification |
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Granted publication date: 20200529 Termination date: 20210822 |
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| CF01 | Termination of patent right due to non-payment of annual fee |