CN212442010U - Gravel vibrating screen - Google Patents
Gravel vibrating screen Download PDFInfo
- Publication number
- CN212442010U CN212442010U CN202020884833.XU CN202020884833U CN212442010U CN 212442010 U CN212442010 U CN 212442010U CN 202020884833 U CN202020884833 U CN 202020884833U CN 212442010 U CN212442010 U CN 212442010U
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- CN
- China
- Prior art keywords
- dust cover
- screen
- dust
- sand
- stone
- 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
Links
- 239000000428 dust Substances 0.000 claims abstract description 152
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 42
- 239000004576 sand Substances 0.000 claims description 40
- 239000004575 stone Substances 0.000 claims description 38
- 239000007921 spray Substances 0.000 claims description 35
- 239000003595 mist Substances 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims 1
- 230000035939 shock Effects 0.000 claims 1
- 238000009423 ventilation Methods 0.000 claims 1
- 238000009792 diffusion process Methods 0.000 abstract description 10
- 239000004744 fabric Substances 0.000 description 9
- 238000013016 damping Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000270295 Serpentes Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
Images
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- Combined Means For Separation Of Solids (AREA)
Abstract
The utility model relates to a grit shale shaker belongs to concrete processing equipment technical field, provides following technical scheme to the problem that can not reduce the dust diffusion, the technical essential of the utility model is located the dust cover of grit shale shaker including the cover, the top of dust cover has been seted up and has been let a mouthful, and the lower extreme of lower hopper runs through the inside that extends to the dust cover behind the mouth of stepping down, the vent has still been seted up at the top of dust cover, be provided with the fan in the vent, the inside of dust cover sets up dust removal subassembly. The utility model has the advantages of reduce the dust diffusion.
Description
Technical Field
The utility model relates to a concrete processing equipment technical field, in particular to grit shale shaker.
Background
The sand and stone vibrating screen works by utilizing reciprocating rotary vibration generated by vibrator excitation. The upper rotary heavy hammer of the vibrator makes the screen surface generate plane rotary vibration, and the lower rotary heavy hammer makes the screen surface generate conical surface rotary vibration, so that the screen surface generates complex rotary vibration. The sand and stone vibrating screen is very convenient to process concrete and has good screening effect on sand and stone.
The prior patent document with the publication number of CN209985742U discloses a sand-stone separator, which comprises a discharge hopper, wherein a sand-stone vibrating screen is correspondingly connected to the lower surface of the discharge hopper, a slurry conveying belt is correspondingly arranged below the sand-stone vibrating screen, and the slurry conveying belt transmits power through a plurality of rollers; the sand-stone separator also comprises a limiting device arranged on the sand-stone vibrating screen and a flow blocking device arranged at the bottom of the discharge hopper.
Although this sand and stone separator is through setting up stop device on the grit shale shaker, stop device is including the limiting plate that is used for injecing the material layer thickness, and the board ear is connected respectively to the both sides of limiting plate, and every board ear all connects the altitude mixture control structure, adjusts the height that the limiting plate leaves the grit shale shaker through the altitude mixture control structure, avoids in the tiny particle sand rolls into to large granule grit collection device along with large granule grit, improves sand and stone separator's separation performance, avoids the secondary separation.
However, in the process of practical use of the sand-stone separator, sand falls on the sand-stone vibrating screen through the discharging hopper, and certain dust can be generated when the sand falls on the sand-stone vibrating screen due to the certain interval between the discharging port of the discharging hopper and the sand-stone vibrating screen. Because this sand and stone separator lacks dust removal protector, make this sand and stone separator can not in time handle the grit and fall the dust that the in-process produced, and then can not reduce the diffusion of dust.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a grit shale shaker, it has the advantage that reduces the dust diffusion.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a grit shale shaker, locates the dust cover of grit shale shaker including covering, the top of dust cover has been seted up and has been let a mouthful, and the lower extreme of lower hopper runs through the inside that extends to the dust cover behind the mouth of stepping down, the vent has still been seted up at the top of dust cover, be provided with the fan in the vent, the inside of dust cover sets up dust removal component.
Through adopting above-mentioned technical scheme, locate the outside of grit shale shaker with the dust cover, the grit from hopper drop to the grit shale shaker down when, start the fan, the dust is through dust removal component under the effect of fan. Under the action of the dust cover, the generated dust is covered in the dust cover, so that the dust is prevented from diffusing outwards; meanwhile, the dust is cleaned under the action of the dust removal assembly, so that dust diffusion can be reduced.
The utility model discloses further set up to: the dust removal assembly comprises a screen fixedly arranged in the dust cover, the screen is arranged right below the vent, the screen covers the joint of the dust cover and the sand and stone vibrating screen, a spray pipe penetrates through the dust cover, the spray pipe positioned in the dust cover is positioned above the screen, the spray pipe positioned in the dust cover is provided with a plurality of spray openings, and each spray opening is internally provided with a mist spray head; and a water pump is arranged on the spray pipe positioned outside the dust cover.
Through adopting above-mentioned technical scheme, start the fan, the dust passes through the screen cloth under the effect of fan, and the inside at the grit shale shaker is reserved to some dust under the effect of screen cloth, avoids the waste of material, the inside that partial dust passes through the screen cloth and gets into the dust cover. The water pump is started, spraying water is accumulated to a certain degree in the spraying pipe and then is sprayed out from the mist-shaped spray head, water mist sprayed out from the inside of the mist-shaped spray head acts on the screen, dust passing through the screen is surrounded in the water mist, the scattered dust is contacted with the water mist, and the dust falls on the screen under the action of the water mist, so that dust diffusion is reduced.
The utility model discloses further set up to: the screen cloth is the arc setting, curved open end dorsad shower.
By adopting the technical scheme, when the dust and the water falling on the screen are increased gradually, the water carrying the dust moves to one side close to the lower end of the screen along the screen, so that on one hand, the dust is prevented from accumulating at the center of the screen and blocking the screen; on the other hand, when the water is accumulated more in the screen, the water is prevented from dropping onto the sand vibrating screen.
The utility model discloses further set up to: the dust cover is characterized in that a strip-shaped through hole is formed in the side wall of the dust cover, the lower end of the screen mesh penetrates through the strip-shaped through hole, an cover plate used for sealing the strip-shaped through hole is fixedly arranged on the outer portion of the dust cover, the cover plate and the outer wall of the dust cover are parallel and arranged at intervals, a containing cavity is formed between the cover plate and the dust cover in a surrounding mode, and a water through hole is formed.
Through adopting above-mentioned technical scheme, the water that slides to screen cloth edge passes through the inside that the bar through-hole flows to the holding chamber, avoids the water droplet to drop to the grit shale shaker on, and the water that drops to the holding intracavity portion leaves to the outside through the limbers.
The utility model discloses further set up to: the dust cover is fixedly provided with a baffle at the position of the strip-shaped through hole, the baffle is positioned below the screen, the baffle and the screen are arranged in parallel, and the screen and the baffle are arranged at intervals.
Through adopting above-mentioned technical scheme, the water that is located screen cloth lower surface slides down to the edge of screen cloth along the lower surface of screen cloth, and water further avoids water to drop to the grit shale shaker along baffle landing to the inside in holding chamber.
The utility model discloses further set up to: and the spray pipes positioned in the dust cover are arranged in a snake shape along the transmission direction of the sand.
Through adopting above-mentioned technical scheme, increase shower is to the area of action of screen cloth, further avoids the diffusion of dust.
The utility model discloses further set up to: the lower extreme of dust cover passes through coupling assembling and sand stone shale shaker and can dismantle the connection.
By adopting the technical scheme, the sand and stone vibrating screen is conveniently covered by the dust cover; the setting up of dust cover can effectually prevent the grit spill, avoids causing the potential safety hazard, can reduce the waste of resource simultaneously.
The utility model discloses further set up to: coupling assembling sets firmly the connecting rod including setting firmly in the fixed block of grit shale shaker, the fixed block has set firmly the connecting rod, the one end that the fixed block was kept away from to the connecting rod runs through in the dust cover, and the connecting rod is located the outside one end threaded connection of dust cover and has the tight piece in top, the dust cover is spacing between tight piece in top and fixed block.
Through adopting above-mentioned technical scheme, be convenient for realize the dust cover and the dismantlement of sand stone shale shaker and be connected.
The utility model discloses further set up to: and a damping spring is sleeved on the connecting rod between the dust cover and the fixed block.
Through adopting above-mentioned technical scheme, damping spring's setting can alleviate the sense of vibration between dust cover and the grit shale shaker, increases the stability of dust cover, prevents that spare part from rocking.
The utility model discloses further set up to: coupling assembling is the multiunit, the multiunit coupling assembling sets up along the transmission direction of grit at equal intervals.
Through adopting above-mentioned technical scheme, improve the joint strength of dust cover and sand stone shale shaker, further improve the stability of dust cover.
To sum up, the utility model discloses following beneficial effect has:
firstly, under the action of a dust cover and a dust removal assembly, the generated dust cover is arranged in the dust cover, and meanwhile, the dust is cleaned, so that the dust diffusion can be reduced;
secondly, the screen is arranged in an arc shape, when dust and water falling on the screen are gradually increased, the water carrying the dust moves to the bottom end of the screen along the screen, so that the dust is prevented from accumulating at the center of the screen to block the screen, and meanwhile, the water falling onto the sand-stone vibrating screen is prevented from influencing the water content of sand stones, thereby influencing the quality of the sand stones;
third, the setting of dust cover can effectually prevent the grit spill, avoids causing the potential safety hazard, can reduce the waste of resource simultaneously.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a sectional view taken along line A-A in FIG. 2;
FIG. 4 is an enlarged view of portion B of FIG. 3;
fig. 5 is an enlarged view of a portion C in fig. 3.
In the figure, 1, a sand vibration screen; 2. a dust cover; 21. a top plate; 211. a let position port; 212. a vent; 22. a side plate; 221. a strip-shaped through hole; 23. a vertical plate; 3. a connecting assembly; 31. a fixed block; 32. a connecting rod; 33. a jacking block; 4. a damping spring; 5. a butting ring; 6. a fan; 7. a dust removal assembly; 71. screening a screen; 72. a shower pipe; 8. a mist spray head; 9. a baffle plate; 10. a cover plate; 101. an upper connecting portion; 102. a lower connecting portion; 20. an accommodating cavity; 30. and (5) discharging a water pipe.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Combine fig. 1 and fig. 2, do the utility model discloses a grit shale shaker, locate the dust cover 2 of grit shale shaker 1 including the cover, the connection can be dismantled to dust cover 2 and grit shale shaker 1. The dust cover 2 comprises a top plate 21, two side plates 22 and two vertical plates 23, wherein the two side plates 22 are arranged oppositely and parallelly, the top plate 21 and the sand and stone vibrating screen 1 are arranged parallelly, and the top plate 21, the two side plates 22 and the two vertical plates 23 enclose a rectangle with an open lower end.
With reference to fig. 3 and 4, the ends of the two side plates 22 far away from the top plate 21 are detachably connected with the sand and stone vibrating screen 1 through the connecting assembly 3. Set up in coupling assembling 3 of 1 homonymy of grit shale shaker be the multiunit, multiunit coupling assembling 3 sets up along the transmission direction of grit at equal intervals.
Referring to fig. 4, each group of connecting assemblies 3 comprises a fixing block 31 welded to the gravel vibrating screen 1, a connecting rod 32 is welded to one side, far away from the gravel vibrating screen 1, of the fixing block 31, and the axis of the connecting rod 32 and the transportation direction of gravel are perpendicular to each other. The one end that fixed block 31 was kept away from to connecting rod 32 runs through behind dust cover 2 threaded connection has a tight piece 33 in top, and tight piece 33 in top is seted up threaded hole in its central department, and the outer wall of connecting rod 32 is provided with the external screw thread with threaded hole looks adaptation, connecting rod 32 and tight piece 33 threaded connection in top. Lie in the cover on the connecting rod 32 between tight piece 33 and the fixed block 31 in top and be equipped with damping spring 4, connecting rod 32 is provided with butt ring 5 along its radial direction, the axis direction that connecting rod 32 can be followed to butt ring 5 slides, damping spring 4's one end and fixed block 31 fixed connection, the other end and 5 fixed connection of butt ring, damping spring 4 is when the unnatural state, 5 butt of butt ring in grit shale shaker 1, can alleviate the sense of vibration between dust cover 2 and the grit shale shaker 1, increase dust cover 2's stability, prevent that spare part from rocking.
Referring to fig. 1, a top plate 21 of the dust cover 2 is provided with a yielding hole 211 for the lower hopper to pass through, the lower end of the lower hopper penetrates through the yielding hole 211 and then extends to the inside of the dust cover 2, and the lower hopper and the sand and stone vibrating screen 1 are arranged at intervals on the surface. The joint of the lower hopper and the dust cover 2 is welded. Two risers 23 set up along the direction of transportation interval of grit, and one side that roof 21 was kept away from to riser 23 extends to the top of grit shale shaker 1, and riser 23's setting does not hinder the vibration of grit on grit shale shaker 1.
The top of the dust cover 2 is also provided with a vent 212, and the vent 212 is communicated with the inside and the outside of the dust cover 2. Install fan 6 in the vent 212, start fan 6, the dust gets into the inside of dust cover 2 under the effect of fan 6, avoids the diffusion of the grit shale shaker 1 production dust in the working process.
With reference to fig. 2 and 3, the dust cap 2 is provided with a dust removing assembly 7 inside, the dust removing assembly 7 includes a screen 71 and a spray pipe 72, and the spray pipe 72 and the screen 71 are sequentially arranged inside the dust cap 2 from top to bottom.
One side of the side plate 22 of the dust cover 2 close to the top plate 21 is provided with a through hole, the spray pipe 72 penetrates through the through hole of the dust cover 2, one end of the spray pipe 72 is positioned inside the dust cover 2, the other end of the spray pipe 72 is positioned outside the dust cover 2, and the joint of the spray pipe 72 and the dust cover 2 is welded.
The end of the spray pipe 72 inside the dust cover 2 is located above the screen 71, and the spray pipe 72 is arranged inside the dust cover 2 in a serpentine shape along the sand conveying direction. A plurality of spray openings are formed in one side of the spray pipe 72 facing the screen 71, and each spray opening is correspondingly provided with a mist-shaped spray head 8. The water spray direction of the plurality of mist nozzles 8 completely irradiates the screen 71. And a water pump is arranged at one end of the spray pipe 72 positioned outside the dust cover 2.
Referring to fig. 3 and 5, the screen 71 is arc-shaped, the open end of the arc faces the sand vibrating screen 1, and two opposite sides of the screen 71 are welded to the inner sides of the two risers 23. The two side plates 22 of the dust cover 2 are respectively provided with a strip-shaped through hole 221, the length direction of the strip-shaped through hole 221 is the same as the transportation direction of sand, one side of the screen 71 corresponding to the strip-shaped through hole 221 penetrates through the strip-shaped through hole 221, and the aperture of the strip-shaped through hole 221 is larger than the distance between the upper surface and the lower surface of the screen 71. The side plate 22 and the strip-shaped through hole 221 of the dust cover 2 are bent inwards to form a baffle 9, the baffle 9 is located below the screen 71, the baffle 9 is arranged obliquely downwards from top to bottom, and the baffle 9 and the screen 71 are arranged in parallel. As the dust and water fall on the screen 71 gradually increases, the dust-laden water moves along the screen 71 to a side near the lower end of the screen 71, preventing dust from accumulating in the center of the screen 71 and clogging the screen 71.
Referring to fig. 5, the dust cap 2 is provided at the outside thereof with a cover plate 10 for sealing the strip-shaped through hole 221, and the cover plate 10 and the side plate 22 of the dust cap 2 are arranged in parallel and spaced apart. The apron 10 is vertical setting, and upward bending is had connecting portion 101 to one side that is close to dust cover 2 in the upper end of apron 10, and the one end and the dust cover 2 welding of apron 10 are kept away from to last connecting portion 101, goes up connecting portion 101 and baffle 9 parallel arrangement. The lower extreme of apron 10 has lower connecting portion 102 to the downward bending of one side that is close to dust cover 2, lower connecting portion 102 and last connecting portion 101 parallel arrangement, and the one end that apron 10 was kept away from to lower connecting portion 102 encloses into holding chamber 20 between the medial surface of dust cover 2 welding apron 10 and the dust cover 2 outer wall, and the limbers has been seted up to the lower extreme of holding chamber 20, and the intercommunication has outlet pipe 30 in the limbers. The water on the lower surface of the screen 71 slides down to the edge of the screen 71 along the lower surface of the screen 71, and the water slides down to the inside of the accommodating cavity 20 along the baffle 9, so that the water is prevented from falling onto the sand vibrating screen 1, and the quality of sand is prevented from being influenced.
The implementation principle of the embodiment is as follows: the dust cover 2 is covered outside the gravel vibrating screen 1, the fan 6 is started, gravel is put in from the feeding port of the discharging hopper, the gravel falls onto the gravel vibrating screen 1 through the discharging hopper, dust passes through the screen 71 under the action of the fan 6, and part of the dust is reserved inside the gravel vibrating screen 1 under the action of the screen 71, so that the waste of materials is avoided; part of the dust enters the inside of the dust cover 2 through the mesh 71. Meanwhile, the water pump is started, the spraying water is accumulated to a certain degree in the spraying pipe 72 and then is sprayed out from the mist-shaped spray head 8, the water mist sprayed out from the mist-shaped spray head 8 acts on the screen 71, the dust passing through the screen 71 is surrounded in the water mist, the dust overflowing everywhere is contacted with the water mist, and the dust falls on the screen 71 under the action of the water mist, so that the dust diffusion is reduced.
When the dust and the water falling on the screen 71 are increased gradually, the water carrying the dust moves to one side close to the lower end of the screen 71 along the screen 71, the water slides to the inside of the accommodating cavity 20 along the baffle 9 and flows out of the accommodating cavity 20 through the water outlet, so that the moisture is prevented from accumulating inside the dust cover 2, and the quality of the sand and stone is influenced.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this 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 (10)
1. The utility model provides a grit shale shaker, its characterized in that, locates dust cover (2) of grit shale shaker (1) including the cover, the top of dust cover (2) has been seted up and has been let a mouthful (211), and the lower extreme of lower hopper runs through the inside that extends to dust cover (2) behind letting a mouthful (211), vent (212) have still been seted up at the top of dust cover (2), be provided with fan (6) in vent (212), the inside of dust cover (2) sets up dust removal subassembly (7).
2. The sand and stone vibrating screen according to claim 1, wherein the dust removing assembly (7) comprises a screen (71) fixedly arranged in a dust cover (2), the screen (71) is arranged right below the ventilation opening (212), the screen (71) covers the connection part of the dust cover (2) and the sand and stone vibrating screen (1), a spray pipe (72) penetrates through the dust cover (2), the spray pipe (72) arranged in the dust cover (2) is arranged above the screen (71), a plurality of spray openings are formed in the spray pipe (72) arranged in the dust cover (2), and a mist spray head (8) is arranged in each spray opening; and a water pump is arranged on the spray pipe (72) positioned outside the dust cover (2).
3. A sand and stone shaker as claimed in claim 2, characterised in that the screen (71) is arcuate with the open end facing away from the shower (72).
4. The sand and stone vibrating screen as claimed in claim 2, wherein a strip-shaped through hole (221) is formed in the side wall of the dust cover (2), the lower end of the screen (71) penetrates through the strip-shaped through hole (221), a cover plate (10) used for sealing the strip-shaped through hole (221) is fixedly arranged outside the dust cover (2), the cover plate (10) and the outer wall of the dust cover (2) are arranged in parallel at intervals, an accommodating cavity (20) is defined between the cover plate (10) and the dust cover (2), and a water through hole is formed in the accommodating cavity (20).
5. A gravel vibrating screen according to claim 4, characterised in that the dust cover (2) is fixedly provided with a baffle (9) at the strip-shaped through hole (221), the baffle (9) is positioned below the screen (71), the baffle (9) and the screen (71) are arranged in parallel, and the screen (71) and the baffle (9) are arranged at intervals.
6. A sand and stone shaker as claimed in claim 2, characterised in that the spray pipes (72) inside the dust cover (2) are serpentine in the direction of transport of the sand.
7. A sand and stone shaker as claimed in claim 1, characterised in that the lower end of the dust cap (2) is detachably connected to the sand and stone shaker (1) by means of a coupling assembly (3).
8. A gravel vibrating screen according to claim 7, wherein the connecting assembly (3) comprises a fixing block (31) fixedly arranged on the gravel vibrating screen (1), a connecting rod (32) is fixedly arranged on the fixing block (31), one end, far away from the fixing block (31), of the connecting rod (32) penetrates through the dust cover (2), one end, located outside the dust cover (2), of the connecting rod (32) is connected with a jacking block (33) in a threaded manner, and the dust cover (2) is limited between the jacking block (33) and the fixing block (31).
9. A sand and stone vibrating screen according to claim 8, characterized in that the shock absorbing spring (4) is sleeved on the connecting rod (32) between the dust cover (2) and the fixed block (31).
10. A sand and stone vibrating screen according to claim 7, characterized in that, the coupling assembling (3) is a plurality of groups, and a plurality of groups of the coupling assembling (3) are arranged along the transmission direction of the sand and stone at equal intervals.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202020884833.XU CN212442010U (en) | 2020-05-23 | 2020-05-23 | Gravel vibrating screen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202020884833.XU CN212442010U (en) | 2020-05-23 | 2020-05-23 | Gravel vibrating screen |
Publications (1)
Publication Number | Publication Date |
---|---|
CN212442010U true CN212442010U (en) | 2021-02-02 |
Family
ID=74500800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202020884833.XU Expired - Fee Related CN212442010U (en) | 2020-05-23 | 2020-05-23 | Gravel vibrating screen |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN212442010U (en) |
-
2020
- 2020-05-23 CN CN202020884833.XU patent/CN212442010U/en not_active Expired - Fee Related
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Legal Events
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210202 |
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CF01 | Termination of patent right due to non-payment of annual fee |