CN210959782U - Novel gardens construction watering device - Google Patents
Novel gardens construction watering device Download PDFInfo
- Publication number
- CN210959782U CN210959782U CN201921902271.0U CN201921902271U CN210959782U CN 210959782 U CN210959782 U CN 210959782U CN 201921902271 U CN201921902271 U CN 201921902271U CN 210959782 U CN210959782 U CN 210959782U
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- Prior art keywords
- watering
- fixedly connected
- bevel gear
- arc
- rotates
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- 238000010276 construction Methods 0.000 title claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 91
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 71
- 238000007789 sealing Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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Abstract
The utility model discloses a novel garden construction watering device, including push pedal and a plurality of locking universal wheel, one of them the first slewing mechanism of the terminal fixedly connected with of drive shaft of locking universal wheel, it runs through to be equipped with second slewing mechanism to rotate in the push pedal, second slewing mechanism meshes with first slewing mechanism mutually, the upper end fixedly connected with storage water tank of push pedal, be equipped with the rotation chamber on the lateral wall of storage water tank, the top surface that rotates the chamber rotates and runs through and be equipped with watering mechanism, the lateral wall intercommunication that rotates the chamber is equipped with the water inlet, watering mechanism meshes with second slewing mechanism mutually, sliding seal is equipped with the piston plate in the storage water tank. The utility model discloses a first slewing mechanism, second slewing mechanism, actuating mechanism, watering mechanism and canceling release mechanical system's setting need not use its watering of power drive, has saved power resources, and can make the shower nozzle horizontal hunting to the device's watering area has been increased.
Description
Technical Field
The utility model relates to a gardens construction watering technical field especially relates to a novel gardens construction watering device.
Background
The garden is created by applying engineering technology and artistic means in a certain region and by means of land form improvement, tree planting, flower and grass planting, building, garden path arrangement and the like, the beautiful natural environment and the rest region are called as a garden, and in the garden construction process, dust is easily generated, the health of people is damaged for a long time, and therefore water is regularly sprayed on the garden.
The current watering device generally leans on electric drive, and this extravagant electric power resource very easily, and the area of watering is less, if need the large tracts of land watering, just will constructor to repeat the watering operation, this extravagant constructor's physical power and time very easily, for this reason, provides a novel gardens construction watering device, solves above problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving among the prior art electric drive extravagant electric power resource, and watering area is less, extravagant constructor's physical power and the problem of time, and the novel gardens construction watering device that proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a novel garden construction watering device comprises a push plate and a plurality of locking universal wheels, wherein the tail end of a driving shaft of one of the locking universal wheels is fixedly connected with a first rotating mechanism, a second rotating mechanism penetrates through the push plate in a rotating manner, the second rotating mechanism is meshed with the first rotating mechanism, a water storage tank is fixedly connected to the upper end of the push plate, a rotating cavity is formed in the side wall of the water storage tank, a watering mechanism penetrates through the top surface of the rotating cavity in a rotating manner, a water inlet is formed in the side wall of the rotating cavity in a communicating manner, the watering mechanism is meshed with the second rotating mechanism, a piston plate is arranged in the water storage tank in a sliding sealing manner, a plurality of first springs are fixedly connected between the piston plate and the bottom of the water storage tank, a driving mechanism for the piston plate is arranged through the side wall of the water storage tank in a rotating manner, the lower extreme fixed connection of canceling release mechanical system and watering mechanism, it needs to explain that, its watering need not be driven with electric power to the device's setting, has saved power resource, and can make the shower nozzle horizontal hunting to increased the device's watering area, also made the watering area of construction not have the blind area.
Preferably, the first rotating mechanism comprises a first rotating rod fixedly arranged at the tail end of one of the locking universal wheel driving shafts, a first bevel gear is coaxially and fixedly connected to the first rotating rod, the first bevel gear is meshed with the second rotating mechanism, and it should be noted that the first rotating mechanism is arranged to drive the second rotating mechanism and the driving mechanism to rotate so as to drive them to complete the tasks to be completed.
Preferably, the second slewing mechanism runs through the second dwang that the push pedal set up including rotating, coaxial fixedly connected with second bevel gear, third bevel gear and incomplete gear on the second dwang, second bevel gear meshes with actuating mechanism mutually, third bevel gear meshes with first bevel gear mutually, incomplete gear meshes with watering mechanism mutually, and it is required to explain that, the setting of second slewing mechanism can drive watering mechanism and rotate to increase watering mechanism's watering area, thereby saved the time that the constructor sprinkled.
Preferably, watering mechanism runs through the sprinkler pipe that rotates the setting of chamber top surface including rotating, coaxial fixedly connected with complete gear on the sprinkler pipe, complete gear meshes with incomplete gear mutually, the watering end intercommunication of sprinkler pipe is equipped with the shower nozzle, be equipped with the sealing washer on the sprinkler pipe, the sealing washer is laminated mutually with the rotation intracavity wall, what need explain, watering mechanism's setting, the accessible promotes the device in order to accomplish its watering work.
Preferably, actuating mechanism is including rotating the third dwang that runs through the setting of storage water tank lateral wall, the coaxial fixedly connected with fourth bevel gear of part that the third dwang is located the storage water tank outside, fourth bevel gear meshes with the second bevel gear mutually, the part fixedly connected with cam that the third dwang is located the storage water tank, it needs to explain that actuating mechanism's setting can drive the motion of piston board to make water spout in can following the shower nozzle, in order to realize the watering work.
Preferably, canceling release mechanical system is including setting up in the arc type groove of storage water tank upper end lateral wall, it is equipped with rather than assorted arc type piece to slide in the arc type groove, the equal fixedly connected with second spring in both ends of arc type piece, two the one end that the second spring kept away from the arc type piece respectively with the both ends inner wall fixed connection in arc type groove, the upper end fixedly connected with L type pole of arc type piece, the lateral wall of L type pole and the lower extreme fixed connection of complete gear need explain, and canceling release mechanical system's setting can drive the sprinkler pipe horizontal hunting to make the injection area of shower nozzle more extensive, reduced the injury that the dust led to the fact the human body to a great extent.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a setting of first slewing mechanism, second slewing mechanism, actuating mechanism and watering mechanism promotes the device through the manpower, has realized the watering function, has not only practiced thrift the electric power resource, and has reduced the injury of dust to the human body through watering to people's is healthy has been protected.
2. The utility model discloses a first slewing mechanism, second slewing mechanism, actuating mechanism, canceling release mechanical system and watering mechanism's setting for the injection area of shower nozzle is comparatively extensive, thereby has saved constructor's physical power, avoids a lot of to be under construction the extravagant constructor's of watering time and physical power.
Drawings
Fig. 1 is a front perspective view of a novel garden construction watering device provided by the utility model;
FIG. 2 is a partial enlarged view of the region A in FIG. 1;
fig. 3 is a top view of the incomplete gear, the complete gear and the reset mechanism in the novel garden construction watering device provided by the utility model;
fig. 4 is the utility model provides a second slewing mechanism and first slewing mechanism's among novel gardens construction watering device schematic structure.
In the figure: the automatic sprinkler comprises a push plate 1, a universal wheel 2, a locking universal wheel 3, a first rotating mechanism 4, a second rotating mechanism 4, a water storage tank 5, a rotating cavity 6, a sprinkling mechanism 7, a piston plate 8, a first spring 9, a driving mechanism 10, a resetting mechanism 11, a first rotating rod 12, a second rotating rod 13, an incomplete gear 14, a sprinkler tube 15, a complete gear 16, a spray head 17, a third rotating rod 18, a cam 19, an arc-shaped groove 20, an arc-shaped block 21 and a second spring 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-4, a novel garden construction watering device comprises a push plate 1 and a plurality of locking universal wheels 2, wherein the end of a driving shaft of one of the locking universal wheels 2 is fixedly connected with a first rotating mechanism 3, a second rotating mechanism 4 is rotatably arranged on the push plate 1 in a penetrating way, the second rotating mechanism 4 is meshed with the first rotating mechanism 3, the upper end of the push plate 1 is fixedly connected with a water storage tank 5, the side wall of the water storage tank 5 is provided with a rotating cavity 6, the top surface of the rotating cavity 6 is rotatably arranged with a watering mechanism 7 in a penetrating way, the side wall of the rotating cavity 6 is communicated with a water inlet, the watering mechanism 7 is meshed with the second rotating mechanism 4, a piston plate 8 is arranged in the water storage tank 5 in a sliding sealing way, a plurality of first springs 9 are fixedly connected between the piston plate 8 and the bottom of the water storage tank 5, the side wall of the water storage tank 5 is rotatably arranged with a, the reset mechanism 11 is fixedly connected with the lower end of the sprinkling mechanism 7, it should be noted that the push plate 1 comprises a placing table and two pushing hands, the placing table is used for placing the water storage tank 5, the two pushing hands are used for manually pushing the device, the locking universal wheels 2 are convenient for pushing the whole device, and when the device is not needed, the locking universal wheels 2 have a positioning function and can limit the whole device at a certain position, the rotation and positioning functions of the locking universal wheels 2 are the prior art, which is not described herein, the water storage tank 5 is used for storing water, so as to facilitate sprinkling operation on a construction environment in the process of pushing the device, the rotating cavity 6 is used for placing the sprinkling mechanism 7, the water inlet is communicated with the inside of the water storage tank 5, so that water can enter the rotating cavity 6 from the water inlet and can be sprayed out from the sprinkling mechanism 7, the piston plate 8 is driven by the driving mechanism 10, water below the piston plate 8 is pressed to the water inlet and from there into the rotating chamber 6 and then ejected from the sprinkler mechanism 7.
Wherein, first slewing mechanism 3 is including fixed setting up in the terminal first dwang 12 of one of them locking universal wheel drive shaft, the first bevel gear of coaxial fixedly connected with on the first dwang 12, first bevel gear meshes with second slewing mechanism 4 mutually, wherein, second slewing mechanism 4 runs through the second dwang 13 that push pedal 1 set up including rotating, coaxial fixedly connected with second bevel gear on the second dwang 13, third bevel gear and incomplete gear 14, second bevel gear meshes with actuating mechanism 10 mutually, third bevel gear meshes with first bevel gear mutually, incomplete gear 14 meshes with watering mechanism 7 mutually.
Wherein, watering mechanism 7 runs through the sprinkler pipe 15 that rotates the setting of 6 top surfaces in chamber including rotating, coaxial fixedly connected with complete gear 16 on sprinkler pipe 15, complete gear 16 meshes with incomplete gear 14 mutually, sprinkler pipe 15's watering end intercommunication is equipped with shower nozzle 17, be equipped with the sealing washer on sprinkler pipe 15, the sealing washer is laminated with the 6 inner walls in chamber of rotating mutually, it is required to explain, the setting of sealing washer, prevent that water from flowing out in rotating chamber 6, and avoid rivers not going out outside shower nozzle 17, the injection technique of shower nozzle 17 is prior art, do not describe herein repeatedly.
Wherein, the driving mechanism 10 includes a third rotating rod 18 rotating through the sidewall of the water storage tank 5, the part of the third rotating rod 18 located outside the water storage tank 5 is coaxially and fixedly connected with a fourth bevel gear, the fourth bevel gear is engaged with the second bevel gear, the part of the third rotating rod 18 located inside the water storage tank 5 is fixedly connected with a cam 19, it should be explained that, because the water in the water storage tank 5 is enough, the fourth bevel gear is much larger than the second bevel gear, so that under the slow rotation of the cam 19, the sprinkler pipe 15 can rotate left and right repeatedly for several times, when the convex end of the cam 19 is about to abut against the piston plate 8, it means to inject water into the water storage tank 5 again for the next sprinkler operation, the cam 19 abuts against the piston plate 8, the cam 19 is arranged to push the piston plate 8 to move, so that the water below the piston plate 8 enters into the rotating cavity 6 through the water inlet, and enters the sprinkler pipe 15 to be sprayed out through the nozzle 17, and it should be specially explained that the front end side wall of the water storage tank 5 is provided with an opening, an observation window is installed in the opening, the side wall of the water storage tank 5 is communicated with a water inlet pipe, a ball valve is installed on the water inlet pipe, the water inlet pipe is a hose and is long, but the sprinkling work of the device cannot be influenced, when the protruding end of the cam 19 is observed to be abutted against the piston plate 8 from the observation window, namely the water is about to be used up, the water inlet end of the cam 19 is communicated with a water pump (not shown in the figure), the water pump is communicated with an external water storage device (not shown in the figure), other water can be pumped into the water storage tank 5 under the resetting action of the first spring 9 and the action of the water pump, in the process, the push plate is pushed to enable the protruding end of the cam 19 to move away.
The reset mechanism 11 includes an arc-shaped groove 20 disposed on the side wall of the upper end of the water storage tank 5, an arc-shaped block 21 matched with the arc-shaped groove 20 is slidably disposed in the arc-shaped groove 20, both ends of the arc-shaped block 21 are fixedly connected with second springs 22, one ends of the two second springs 22 far from the arc-shaped block 21 are fixedly connected with the inner walls of both ends of the arc-shaped groove 20, the upper end of the arc-shaped block 21 is fixedly connected with an L-shaped rod, and the side wall of a L-shaped rod is fixedly connected with the lower end of the complete gear 16, it should be explained that, in the initial state, both ends of the two second springs 22 are in the original state, when the incomplete gear 14 rotates and one end of the teeth is meshed with the teeth of the complete gear 16, the incomplete gear 14 drives the complete gear 16 to rotate, that is, that the L-shaped rod drives the arc-shaped block 21 to slide along the axial direction of the arc-shaped groove 20, so that the sprinkling pipe 15 rotates, one second spring 22 is slowly in the stretching state, the other second spring 22 is also slowly compressed state, when the second spring rotates to the other spring 22 rotates to the other direction, the left of the right-side-left-side sprinkling pipe sprinkling system, the left-side sprinkling nozzle can be slowly expanded, and the left-.
The utility model discloses in, when needs carry out the watering operation, under the initial condition, water is stored in the storage water tank 5 of piston plate 8 below, piston plate 8 setting is kept away from to cam 19's protruding end, hand pushing hands, promote the device under the effect of locking universal wheel 2, the drive shaft of one of them locking universal wheel 2 drives first dwang 12 and rotates, first dwang 12 drives first bevel gear and rotates, first bevel gear drives third bevel gear and rotates, third bevel gear drives second dwang 13 and rotates, second dwang 13 drives second bevel gear and incomplete gear 14 and rotates, second dwang drives fourth bevel gear and rotates, fourth bevel gear drives third dwang 18 and rotates, third dwang 18 drives cam 19 and rotates, cam 19's protruding end is slowly close to piston plate 8, make piston plate 8 downstream, make water pass through the water inlet, rotation chamber 6, The sprinkler pipe 15 is finally sprayed out from the spray head 17, meanwhile, the incomplete gear 14 drives the complete gear 16 to rotate, the complete gear 16 drives the sprinkler pipe 15 to rotate, the rotation of the sprinkler pipe 15 enables the spray head 17 to swing left and right, and therefore large-area sprinkling operation is achieved.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a novel garden construction watering device, includes push pedal (1) and a plurality of locking universal wheel (2), its characterized in that, one of them the first slewing mechanism (3) of drive shaft end fixedly connected with of locking universal wheel (2), it runs through to be equipped with second slewing mechanism (4) to rotate in push pedal (1), second slewing mechanism (4) mesh with first slewing mechanism (3) mutually, the upper end fixedly connected with storage water tank (5) of push pedal (1), be equipped with on the lateral wall of storage water tank (5) and rotate chamber (6), the top surface that rotates chamber (6) rotates and runs through and is equipped with watering mechanism (7), the lateral wall intercommunication that rotates chamber (6) is equipped with the water inlet, watering mechanism (7) mesh with second slewing mechanism (4) mutually, sliding seal is equipped with piston plate (8) in storage water tank (5), a plurality of first springs (9) of fixedly connected with between piston plate (8) and storage water tank (5) bottom The side wall of the water storage tank (5) rotates to penetrate through a driving mechanism (10) used for a piston plate (8), the side wall of the upper end of the water storage tank (5) is provided with a resetting mechanism (11), and the resetting mechanism (11) is fixedly connected with the lower end of a sprinkling mechanism (7).
2. A novel garden construction watering device according to claim 1, characterized in that the first rotating mechanism (3) comprises a first rotating rod (12) fixedly arranged at the end of one of the locking universal wheel drive shafts, a first bevel gear is coaxially and fixedly connected to the first rotating rod (12), and the first bevel gear is meshed with the second rotating mechanism (4).
3. A novel garden construction watering device according to claim 2, characterized in that the second rotating mechanism (4) comprises a second rotating rod (13) which rotates to penetrate through the push plate (1), a second bevel gear, a third bevel gear and an incomplete gear (14) are fixedly connected to the second rotating rod (13) coaxially, the second bevel gear is meshed with the driving mechanism (10), the third bevel gear is meshed with the first bevel gear, and the incomplete gear (14) is meshed with the watering mechanism (7).
4. A novel garden construction watering device according to claim 3, wherein the watering mechanism (7) comprises a watering pipe (15) rotatably arranged through the top surface of the rotating cavity (6), a complete gear (16) is coaxially and fixedly connected to the watering pipe (15), the complete gear (16) is meshed with the incomplete gear (14), a nozzle (17) is communicated with the watering end of the watering pipe (15), a sealing ring is arranged on the watering pipe (15), and the sealing ring is attached to the inner wall of the rotating cavity (6).
5. A novel garden construction watering device according to claim 4, characterized in that the actuating mechanism (10) comprises a third rotating rod (18) which rotates through the side wall of the water storage tank (5), a part of the third rotating rod (18) which is located outside the water storage tank (5) is fixedly connected with a fourth bevel gear coaxially, the fourth bevel gear is meshed with a second bevel gear, and a part of the third rotating rod (18) which is located inside the water storage tank (5) is fixedly connected with a cam (19).
6. A novel garden construction watering device according to claim 5, wherein the resetting mechanism (11) comprises an arc-shaped groove (20) formed in the side wall of the upper end of the water storage tank (5), an arc-shaped block (21) matched with the arc-shaped groove (20) is slidably arranged in the arc-shaped groove (20), the two ends of the arc-shaped block (21) are fixedly connected with second springs (22), one ends of the two second springs (22) far away from the arc-shaped block (21) are fixedly connected with the inner walls of the two ends of the arc-shaped groove (20), the upper end of the arc-shaped block (21) is fixedly connected with an L-shaped rod, and the side wall of the L-shaped rod is fixedly connected with the lower end of the complete gear (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921902271.0U CN210959782U (en) | 2019-11-06 | 2019-11-06 | Novel gardens construction watering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921902271.0U CN210959782U (en) | 2019-11-06 | 2019-11-06 | Novel gardens construction watering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210959782U true CN210959782U (en) | 2020-07-10 |
Family
ID=71446168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921902271.0U Expired - Fee Related CN210959782U (en) | 2019-11-06 | 2019-11-06 | Novel gardens construction watering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210959782U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111773592A (en) * | 2020-07-15 | 2020-10-16 | 金栋 | Novel carbon dioxide fire extinguishing structure |
| CN111820114A (en) * | 2020-07-29 | 2020-10-27 | 江苏鸣泉灌排设备有限公司 | Walking type farmland irrigation machine |
| CN111919616A (en) * | 2020-08-24 | 2020-11-13 | 朱孟伦 | A multi-angle sprinkler for agricultural irrigation usefulness |
| CN112458974A (en) * | 2020-11-06 | 2021-03-09 | 衷秋平 | Automatic cleaning device for highway guardrail |
| CN113144796A (en) * | 2021-04-25 | 2021-07-23 | 中建五局华东建设有限公司 | Construction is with spraying dust keeper |
| CN113521932A (en) * | 2021-09-15 | 2021-10-22 | 东营思达石油化工有限公司 | Wet-type clarification plant is used in petroleum refining |
| CN113557939A (en) * | 2021-08-06 | 2021-10-29 | 林建丹 | Agricultural is with intelligent watering mobile device |
| CN113577953A (en) * | 2021-08-23 | 2021-11-02 | 湖南城市学院 | Environmental protection dust collecting equipment of building engineering construction |
| CN114405193A (en) * | 2022-01-24 | 2022-04-29 | 重庆交通职业学院 | Road and bridge construction sprays dust device |
-
2019
- 2019-11-06 CN CN201921902271.0U patent/CN210959782U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111773592A (en) * | 2020-07-15 | 2020-10-16 | 金栋 | Novel carbon dioxide fire extinguishing structure |
| CN111820114A (en) * | 2020-07-29 | 2020-10-27 | 江苏鸣泉灌排设备有限公司 | Walking type farmland irrigation machine |
| CN111919616A (en) * | 2020-08-24 | 2020-11-13 | 朱孟伦 | A multi-angle sprinkler for agricultural irrigation usefulness |
| CN112458974A (en) * | 2020-11-06 | 2021-03-09 | 衷秋平 | Automatic cleaning device for highway guardrail |
| CN113144796A (en) * | 2021-04-25 | 2021-07-23 | 中建五局华东建设有限公司 | Construction is with spraying dust keeper |
| CN113557939A (en) * | 2021-08-06 | 2021-10-29 | 林建丹 | Agricultural is with intelligent watering mobile device |
| CN113577953A (en) * | 2021-08-23 | 2021-11-02 | 湖南城市学院 | Environmental protection dust collecting equipment of building engineering construction |
| CN113521932A (en) * | 2021-09-15 | 2021-10-22 | 东营思达石油化工有限公司 | Wet-type clarification plant is used in petroleum refining |
| CN114405193A (en) * | 2022-01-24 | 2022-04-29 | 重庆交通职业学院 | Road and bridge construction sprays dust device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20200710 |