CN115142425B - Material conveying device for downward and vertical concrete conveying and use method - Google Patents
Material conveying device for downward and vertical concrete conveying and use method Download PDFInfo
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- CN115142425B CN115142425B CN202210997602.3A CN202210997602A CN115142425B CN 115142425 B CN115142425 B CN 115142425B CN 202210997602 A CN202210997602 A CN 202210997602A CN 115142425 B CN115142425 B CN 115142425B
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- 239000000463 material Substances 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000012546 transfer Methods 0.000 claims abstract description 47
- 229910000831 Steel Inorganic materials 0.000 claims description 48
- 239000010959 steel Substances 0.000 claims description 48
- 238000009412 basement excavation Methods 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005204 segregation Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 5
- 238000005381 potential energy Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/125—Manhole shafts; Other inspection or access chambers; Accessories therefor characterised by the lining of the shaft
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Environmental & Geological Engineering (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a conveying device for conveying concrete vertically downwards and a use method thereof, wherein the conveying device for conveying concrete vertically downwards comprises a material receiving box, a plurality of transfer boxes and connecting bent pipes, wherein pipe joint joints are respectively arranged at the bottom of the material receiving box and the upper and lower ends of the transfer boxes, the material receiving box, the transfer boxes and the connecting bent pipes are communicated through communicating pipes at the pipe joint joints, grids are arranged in the material receiving box along the length direction of the material receiving box, four edges at the bottom of the material receiving box are bevel surfaces, and the bevel surfaces are inclined towards the pipe joint joints respectively; the conveying device for conveying concrete vertically downwards and the using method solve the technical problems that in the prior art, the potential safety hazard of concrete vertical self-flow is high, segregation and blockage of a conveying pipe are easy to occur when concrete is overlapped at high frequency, and the conveying device is stable in overall structure, stable in concrete conveying and suitable for popularization and use.
Description
Technical Field
The invention relates to the technical field of concrete conveying, in particular to a conveying device for conveying concrete downwards and vertically and a using method.
Background
Underground traffic construction is a major choice for solving many large urban traffic problems. Subway construction relates to deep and large well and station underground excavation engineering, and the concrete of the built structure is gradually increased along with the increase of the excavation depth. The vertical conveying (concrete) has large fall and poor safety, the vertical conveying path of the traditional horizontal pipe is overlong and the pipe is blocked by the pump which is easy to stop, and in addition, the problem that the conveying pipe is blocked by concrete segregation occurs at time, so that the whole construction progress is not facilitated, and the construction period is prolonged.
Disclosure of Invention
The invention aims to solve the problems and provide a conveying device for conveying concrete downwards and vertically, which solves the technical problems of high potential safety hazard of concrete vertical self-flow, easy segregation and blockage of a conveying pipe caused by high-frequency stacking of concrete in the prior construction technology, has a stable integral structure and is stable in concrete conveying and a use method.
In order to achieve the above purpose, the technical scheme of the invention is as follows: the utility model provides a conveyer of concrete is carried perpendicularly downwards, includes material receiving box, a plurality of transfer case and connection return bend, the bottom of material receiving box and the upper and lower both ends of transfer case are equipped with the pipe joint respectively and connect, between material receiving box, transfer case and the connection return bend through communicating pipe intercommunication in pipe joint department.
Preferably, a grid is arranged in the material receiving box along the length direction of the material receiving box, four edges at the bottom of the material receiving box are chamfer surfaces, and the chamfer surfaces are respectively inclined towards the joint direction of the pipe joint.
Preferably, the top of transfer box is equipped with the opening, one of them angle department of opening is equipped with square apron, square apron is equipped with the chamfer, and the tube coupling joint is established on square apron, open-ended diagonal angle department is equipped with the lug, be equipped with the defeated flitch of slope in the transfer box.
Preferably, the inclined material conveying plate comprises a right trapezoid steel plate and a triangular steel plate, the right trapezoid steel plate is fixed on the inner wall of the transfer box and is positioned under the square cover plate, the right trapezoid steel plate is inclined downwards by 55 degrees, one side of the triangular steel plate is fixed on the right trapezoid steel plate, the other two sides of the triangular steel plate are respectively fixed on the inner wall of the transfer box, the surface of the right trapezoid steel plate is provided with a material conveying hole, a beveled hole matched with the material conveying hole is formed in a pipe joint connector below the transfer box, the pipe joint connector below the transfer box is connected with the right trapezoid steel plate into a whole at the beveled hole, and the pipe joint connector above the transfer box is arranged in diagonal dislocation with the pipe joint connector below the transfer box.
Preferably, the inclined material conveying plate further comprises a slope panel, wherein the slope panel is arranged close to the material conveying hole, and the right trapezoid steel plate, the triangular steel plate and the slope panel are arranged in a triangular shape.
Preferably, the adaptor boxes can rotate between the two communicating pipes to adjust the connection position, and every two adjacent adaptor boxes are alternately arranged.
The application method of the conveying device for vertically conveying concrete downwards comprises the following steps: (1) According to the on-site layout conditions, installing the material conveying device along with the excavation depth of the vertical shaft; (2) arranging a concrete pump at a discharge hole of the conveying device; (3) Cement slurry wets the material receiving box, the transfer box, the communicating pipe and the transfer bent pipe; (4) Controlling the concrete of the tank truck to drop, and slowing down the drop speed under the condition of meeting the concrete pumping; (5) The bottom concrete pump carries out secondary stirring on the conveyed concrete, and relay pumping is carried out on the well wall lining concrete and the concrete with the underground excavation structure; (6) After pouring, water is injected into the material receiving box to clean the whole material conveying device.
The invention discloses a material conveying device for vertically conveying concrete downwards and a use method thereof, comprising a material receiving box, a plurality of transfer boxes and connecting bent pipes, wherein pipe joint joints are respectively arranged at the bottom of the material receiving box and the upper and lower ends of the transfer boxes, the material receiving box, the transfer boxes and the connecting bent pipes are communicated through communicating pipes at the pipe joint joints, grids are arranged in the material receiving box along the length direction of the material receiving box, four edges of the bottom of the material receiving box are chamfer surfaces, and the chamfer surfaces are respectively inclined towards the pipe joint joints; compared with the prior art, the concrete self-flow vertical-type concrete conveying device has the advantages of reducing potential safety hazards of vertical self-flow of concrete, avoiding the problem of segregation and blockage of the concrete in the conveying process, along with stable overall structure and stable concrete conveying.
Drawings
Fig. 1 is a schematic view showing the overall structure of a feeding device for vertically feeding concrete downward according to the present invention.
Fig. 2 is a schematic structural view of a receiving box in a feeding device for vertically conveying concrete downward according to the present invention.
Fig. 3 is a schematic structural view of an adapter box in a conveying device for vertically conveying concrete downwards.
Fig. 4 is a schematic view showing the internal structure of the transfer box in the feeding device for vertically conveying concrete downward according to the present invention.
Fig. 5 is a schematic diagram showing connection between two adjacent adaptor boxes in a feeding device for vertically conveying concrete downward according to the present invention.
In the figure: 1. a material receiving box; 11. a grille; 12. chamfering; 2. a transfer box; 21. an opening; 22. a square cover plate; 23. lifting lugs; 24. chamfering; 25. right trapezoid steel plates; 26. triangular steel plates; 27. a ramp panel; 28. a material conveying hole; 29. chamfering the hole; 3. a transfer elbow; 4. a communicating pipe; 5. and (5) a pipe joint connector.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic views illustrating the basic structure of the present invention by way of illustration only, and thus show only the constitution related to the present invention.
Referring to fig. 1-4, a feeding device for vertically conveying concrete downwards comprises a receiving box 1, a plurality of transfer boxes 2 and connecting elbows 3, wherein pipe joint connectors 5 are respectively arranged at the bottom of the receiving box 1 and the upper and lower ends of the transfer boxes 2, the receiving box 1, the transfer boxes 2 and the connecting elbows 3 are communicated through communicating pipes 4 at the pipe joint connectors 5, the connecting ends of the pipe joint connectors 5 adopt flanges with connecting bolt holes, and at the moment, when concrete is injected into the receiving box 1, the concrete is sequentially discharged through the receiving box 1, the transfer boxes 2 and the connecting elbows 3, so that the concrete conveying in the vertical direction is satisfied.
The grid 11 is arranged in the material receiving box 1 along the length direction of the material receiving box and is used for screening agglomerated concrete, large-particle-size broken stones and the like, the four edges at the bottom of the material receiving box 1 are chamfer surfaces 12, and the chamfer surfaces 12 incline towards the pipe joint connector 5 respectively so as to ensure that poured concrete is completely put into a warehouse.
In the scheme of the invention, the top of the transfer box 2 is provided with an opening 21, one corner of the opening 21 is provided with a square cover plate 22, the square cover plate 22 is provided with a rounding angle 24, the pipe joint connector 5 is arranged on the square cover plate 22, the opposite corner of the opening 21 is provided with a lifting lug 23, and the transfer box 2 is internally provided with an inclined material conveying plate. After the concrete enters the transfer box 2, the concrete is discharged through the pipe joint connector 5 below, and the concrete is communicated with the outside during the period, that is to say, the negative pressure phenomenon cannot be generated in the transfer box 2, and the stable conveying of the concrete is facilitated.
The inclined material conveying plate comprises a right trapezoid steel plate 25 and a triangular steel plate 26, the right trapezoid steel plate 26 is fixed on the inner wall of the adapter box 2 and is positioned right below the square cover plate 22, the right trapezoid steel plate 25 is inclined downwards by 55 degrees, the triangular steel plate 26 is also inclined downwards, one side of the triangular steel plate 26 is fixed on the right trapezoid steel plate 25, the other two sides of the triangular steel plate 26 are respectively fixed on the inner wall of the adapter box 2, a material conveying hole 28 is formed in the surface of the right trapezoid steel plate 25, a chamfer hole 29 matched with the material conveying hole 28 is formed in a pipe joint connector 5 below the adapter box 2, the pipe joint connector 5 below the adapter box 2 is connected with the right trapezoid steel plate 25 into a whole at the chamfer hole 29, at the moment, the interior of the adapter box 2 is communicated on the right trapezoid steel plate 25, and concrete falls into the pipe joint connector 5 below through the right trapezoid steel plate 25 and the triangular steel plate 26 after falling into the adapter box 2.
In addition, the pipe joint 5 above the transfer box 2 and the pipe joint 5 below are arranged in a diagonally staggered mode, at this time, concrete is buffered on the right trapezoid steel plate 25 and the triangular steel plate 26, fluidity is reduced, potential energy is reduced, potential safety hazards caused by vertical gravity flow are avoided, meanwhile, the occurrence of concrete segregation blocking phenomenon can be avoided, the inner pressure and the outer pressure are always caused through the opening 21 above, negative pressure is avoided, and concrete conveying is guaranteed.
As a preferred scheme, the inclined material conveying plate further comprises a slope panel 27, the slope panel 27 is arranged close to the material conveying hole 28, and the right trapezoid steel plate 25, the triangular steel plate 26 and the slope panel 27 are arranged in a triangular shape, so that concrete can enter the inclined cutting hole 29 conveniently.
Furthermore, the adaptor boxes 2 can rotate between the two communicating pipes 4 to adjust the connection positions, the connection positions can be adjusted in time according to the use requirements, and in the actual use process, every two adjacent adaptor boxes 2 are ensured to be alternately arranged; referring to fig. 5, two adjacent adaptor boxes 2 are diagonally connected, so that two sections of communicating pipes 4 are located on different vertical lines, and potential energy generated during vertical conveying is further reduced.
The receiving box 1 is formed by welding a 1cm thick steel plate, the height is 60cm, the cross section of the top opening is 60cm multiplied by 50cm, the cross section of the bottom is 20cm multiplied by 20cm, a pipe joint 5 (steel pipe with the diameter of 20cm and the length of 20 cm) is welded at the bottom of the receiving box 1, and the joint receiving ends are connected by adopting flanges with connecting bolt holes; the periphery of the transfer box 2 is formed by welding steel plates with the thickness of 1cm, the height is 60cm, the design size of the top surface opening is 60cm multiplied by 50cm, a square cover plate 22 with a rounded corner is welded at one corner, the side length of the square cover plate is 35cm, and holes matched with the pipe joint connectors 5 are formed in the square cover plate along the arc side and used for conveying concrete; the right trapezoid steel plate 25 is 3cm thick, is arranged at a position 15cm away from the top surface and is inclined downwards by an angle of 55 degrees, welding is performed in the direction of the inclined opposite sides of the top surface and the bottom surface, and the triangular steel plate 26 is formed into a funnel shape with an inclined surface by adopting a 1cm thick steel plate along the inner wall and overlapping and welding with the inclined sides of the trapezoid steel plate, so that potential energy reduction and transfer and continuous action of receiving concrete are realized.
In addition, the communicating pipe 4 and all pipe joint connectors 5 are the same in model, and the end parts are respectively provided with a flange plate, so that connection with a material receiving box, a transfer box and a transfer elbow is realized. The whole preparation is simple, the materials are convenient to obtain, and the site is easy to implement.
The invention also discloses a using method of the conveying device for vertically conveying concrete downwards, which comprises the following steps: (1) According to the on-site layout conditions, installing the material conveying device along with the excavation depth of the vertical shaft; (2) arranging a concrete pump at a discharge hole of the conveying device; (3) Cement slurry wets the material receiving box, the transfer box, the communicating pipe and the transfer bent pipe; (4) Controlling the concrete of the tank truck to drop, and slowing down the drop speed under the condition of meeting the concrete pumping; (5) The bottom concrete pump carries out secondary stirring on the conveyed concrete, and relay pumping is carried out on the well wall lining concrete and the concrete with the underground excavation structure; (6) After pouring, water is injected into the material receiving box to clean the whole material conveying device.
In the using process, the method ensures that every two adjacent adaptor boxes 2 are alternately arranged, reduces potential energy to the greatest extent, and enables the vertically falling concrete to be buffered.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (4)
1. The material conveying device is characterized by comprising a material receiving box, a plurality of switching boxes and connecting bent pipes, wherein pipe joint connectors are respectively arranged at the bottom of the material receiving box and the upper and lower ends of the switching boxes, and the material receiving box, the switching boxes and the connecting bent pipes are communicated through communicating pipes at the pipe joint connectors; the top of the transfer box is provided with an opening, one corner of the opening is provided with a square cover plate, the square cover plate is provided with a rounding corner, a pipe joint connector is arranged on the square cover plate, the opposite corner of the opening is provided with a lifting lug, and an inclined material conveying plate is arranged in the transfer box; the inclined material conveying plate comprises a right trapezoid steel plate and a triangular steel plate, the right trapezoid steel plate is fixed on the inner wall of the transfer box and is positioned under the square cover plate, the right trapezoid steel plate is inclined downwards by 55 degrees, one side of the triangular steel plate is fixed on the right trapezoid steel plate, the other two sides of the triangular steel plate are respectively fixed on the inner wall of the transfer box, the surface of the right trapezoid steel plate is provided with a material conveying hole, a beveled hole matched with the material conveying hole is formed in a pipe joint connector below the transfer box, the pipe joint connector below the transfer box is connected with the right trapezoid steel plate into a whole at the beveled hole, and the pipe joint connector above the transfer box and the pipe joint connector below the transfer box are arranged in a diagonal dislocation mode; the inclined material conveying plate further comprises a slope panel, the slope panel is arranged close to the material conveying hole, and the right trapezoid steel plate, the triangular steel plate and the slope panel are arranged in a triangular shape.
2. The feeding device for vertically conveying concrete downwards according to claim 1, wherein a grid is arranged in the material receiving box along the length direction of the material receiving box, four edges at the bottom of the material receiving box are chamfer surfaces, and the chamfer surfaces are respectively inclined towards the joint direction of the pipe joint.
3. The feeding device for vertically conveying concrete downward according to claim 2, wherein the adaptor boxes are capable of rotatably adjusting connection positions between two communicating pipes, and every two adjacent adaptor boxes are alternately arranged.
4. A method of using a feeder apparatus for vertical downward delivery of concrete according to any one of claims 1 to 3, comprising the steps of:
(1) According to the on-site layout conditions, installing the material conveying device along with the excavation depth of the vertical shaft;
(2) A concrete pump is arranged at a discharge hole of the conveying device;
(3) Cement slurry wets the material receiving box, the transfer box, the communicating pipe and the transfer bent pipe;
(4) Controlling the concrete of the tank truck to drop, and slowing down the drop speed under the condition of meeting the concrete pumping;
(5) The bottom concrete pump carries out secondary stirring on the conveyed concrete, and relay pumping is carried out on the well wall lining concrete and the concrete with the underground excavation structure;
(6) After pouring, water is injected into the material receiving box to clean the whole material conveying device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210997602.3A CN115142425B (en) | 2022-08-19 | 2022-08-19 | Material conveying device for downward and vertical concrete conveying and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210997602.3A CN115142425B (en) | 2022-08-19 | 2022-08-19 | Material conveying device for downward and vertical concrete conveying and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115142425A CN115142425A (en) | 2022-10-04 |
| CN115142425B true CN115142425B (en) | 2024-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210997602.3A Active CN115142425B (en) | 2022-08-19 | 2022-08-19 | Material conveying device for downward and vertical concrete conveying and use method |
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| CN (1) | CN115142425B (en) |
Citations (7)
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|---|---|---|---|---|
| CN203755685U (en) * | 2014-04-10 | 2014-08-06 | 葛洲坝集团第五工程有限公司 | Large-drop-height vertical concrete delivery descent control device |
| CN205588483U (en) * | 2016-04-18 | 2016-09-21 | 昆明群锦科技有限公司 | Buffering device for vertical concrete conveyance |
| CN206233593U (en) * | 2016-12-06 | 2017-06-09 | 中铁七局集团第三工程有限公司 | A kind of damping device used in vertical transportation of concrete |
| CN206881315U (en) * | 2017-03-20 | 2018-01-16 | 上海迪扬过滤系统有限公司 | A kind of special cross guide support of water conservancy diversion filter cylinder |
| CN109025306A (en) * | 2018-07-10 | 2018-12-18 | 中国三冶集团有限公司 | Concreting buffering vertical slip cylinder in civil construction |
| CN109595028A (en) * | 2018-11-21 | 2019-04-09 | 中煤第建设有限公司第三十工程处 | A kind of vertical baiting method of concrete transportation |
| WO2022036798A1 (en) * | 2020-08-20 | 2022-02-24 | 安徽康迪纳电力科技有限责任公司 | Curved anti-blockage hopper |
-
2022
- 2022-08-19 CN CN202210997602.3A patent/CN115142425B/en active Active
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| CN203755685U (en) * | 2014-04-10 | 2014-08-06 | 葛洲坝集团第五工程有限公司 | Large-drop-height vertical concrete delivery descent control device |
| CN205588483U (en) * | 2016-04-18 | 2016-09-21 | 昆明群锦科技有限公司 | Buffering device for vertical concrete conveyance |
| CN206233593U (en) * | 2016-12-06 | 2017-06-09 | 中铁七局集团第三工程有限公司 | A kind of damping device used in vertical transportation of concrete |
| CN206881315U (en) * | 2017-03-20 | 2018-01-16 | 上海迪扬过滤系统有限公司 | A kind of special cross guide support of water conservancy diversion filter cylinder |
| CN109025306A (en) * | 2018-07-10 | 2018-12-18 | 中国三冶集团有限公司 | Concreting buffering vertical slip cylinder in civil construction |
| CN109595028A (en) * | 2018-11-21 | 2019-04-09 | 中煤第建设有限公司第三十工程处 | A kind of vertical baiting method of concrete transportation |
| WO2022036798A1 (en) * | 2020-08-20 | 2022-02-24 | 安徽康迪纳电力科技有限责任公司 | Curved anti-blockage hopper |
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| CN115142425A (en) | 2022-10-04 |
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