A discharge device for an underwater screed
By designing the connection method between the material box and the upper and lower discharge pipes, the problem of water and air being discharged under pressure due to the sudden entry of materials into the discharge pipe of the underwater screed was solved, thereby improving construction safety and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CCCC FOURTH HARBOR ENG CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-05-29
AI Technical Summary
When material suddenly enters the feed pipe of an existing underwater screed, it compresses water and air, causing pressurized discharge, which affects construction safety and reduces efficiency.
Design a material feeding device for an underwater leveling machine, including a material box and upper and lower feeding pipes. The material box presses the upper feeding pipe vertically downward to open the material gate. The hopper is connected to the upper feeding pipe. When the stone falls, air or water is discharged through the first channel to achieve smooth material feeding.
This ensures smooth stone feeding during construction, improving construction safety and efficiency, and avoiding the risk of pressurized water and air being discharged from the feeding pipe.
Smart Images
Figure CN224299971U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of underwater leveling machine technology, and in particular to a material feeding device for an underwater leveling machine. Background Technology
[0002] An underwater screed is a type of machinery specifically designed for underwater earthwork leveling operations. It is widely used in marine engineering, water conservancy projects, and other fields. Through its unique design and structure, the underwater screed can effectively level soil underwater to achieve the desired smoothness.
[0003] The underwater screed is equipped with a feeding pipe. During daily construction, materials enter the underwater work area through the feeding pipe for leveling. However, since the lower part of the feeding pipe is located in the water, and the feeding pipe contains water and air, when a large amount of material is suddenly filled from the top of the feeding pipe, the material entering the feeding pipe will compress the water and air in the feeding pipe, causing the water and air in the feeding pipe to be released under pressure. This will affect the construction safety of the feeding pipe. Therefore, at present, the speed of filling the feeding pipe with materials is controlled during construction to reduce the risk of water and air being released under pressure. However, this will affect the construction efficiency of the underwater screed. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, where when a large amount of material is suddenly filled from the top of the feeding pipe, the material entering the feeding pipe will compress the water and air in the feeding pipe, causing the water and air in the feeding pipe to be discharged under pressure, which will affect the construction safety of the feeding pipe. This invention provides a feeding device for an underwater leveling machine.
[0005] In a first aspect, this utility model provides a feeding device for an underwater leveling machine, comprising a material box, an upper feeding pipe, and a lower feeding pipe:
[0006] The upper feed pipe is connected above the lower feed pipe, and a first channel is formed between the upper feed pipe and the lower feed pipe;
[0007] The material box includes a hopper with an opening at the bottom and a material gate at the opening. The material gate can be closed or opened. The material gate and the upper discharge pipe are configured such that when the material box presses the upper discharge pipe vertically downward, the material gate can be opened, connecting the hopper and the upper discharge pipe.
[0008] The material feeding device of the underwater screed described in this application, during construction, involves pressing the upper feeding pipe vertically downwards from the material box, thereby opening the material gate and connecting the hopper to the upper feeding pipe. At this time, the stone material in the hopper falls into the upper feeding pipe and then into the lower feeding pipe. Meanwhile, some air or water in the upper and lower feeding pipes is discharged through a first channel between the upper and lower feeding pipes, achieving the goal of smooth material flow from the material box to the lower feeding pipe, thus ensuring smooth material feeding during the operation of the screed.
[0009] Preferably, the upper feed pipe is inserted into the lower feed pipe.
[0010] Preferably, the lower feed pipe includes a bottom pipe structure and a first funnel structure connected to the top of the bottom pipe structure, with the larger end of the first funnel structure facing the upper feed pipe.
[0011] Preferably, the upper feeding pipe includes an upper pipe structure, with a plurality of protrusions arranged circumferentially on the outer wall of the upper pipe structure, a first gap between adjacent protrusions, and the outer surface of the protrusions being an inclined surface corresponding to the first funnel structure. The lower part of the upper pipe structure is inserted into the bottom pipe structure, and a second gap communicating with the first gap is formed between the outer wall of the upper pipe structure and the inner wall of the bottom pipe structure.
[0012] Preferably, the upper feeding pipe further includes a second funnel structure sleeved on the outside of the upper pipe structure, the second funnel structure facing the first funnel structure and capable of covering the large opening end of the first funnel structure, the first funnel structure and the second funnel structure having a third gap connected to the first gap, the third gap, the first gap and the second gap forming the first channel.
[0013] Preferably, a first block is provided on the outer side of the portion of the upper tube structure located below the first funnel structure, and at least one side of the first block can laterally abut against the inner wall of the bottom tube structure. This is to increase the connection stability between the upper tube structure and the lower feed tube.
[0014] Preferably, the upper tube structure further includes at least two upper tube sections that are detachably connected in sequence along the length of the upper tube structure, and the second funnel structure is located on the lowermost upper tube section.
[0015] Preferably, the upper tube structure further includes a third funnel structure connected to the top of the upper tube structure, with the larger end of the third funnel structure facing upwards.
[0016] Preferably, the material box further includes a hopper, the bottom of which has an opening and a material gate is provided at the opening. The material gate can be closed or opened, and the material gate and the third funnel structure are configured such that the material gate can be opened when the material gate presses the third funnel structure vertically downward.
[0017] Preferably, the material gate includes two opposing half-gate structures, which are hinged to the hopper via a first hinge shaft. When the material gate presses down vertically on the large end of the third funnel structure, the two half-gate structures rotate in opposite directions to form an opening connecting the hopper and the first funnel structure.
[0018] Preferably, the two first hinge axes are arranged in parallel, and the half-door structure is eccentrically hinged to the hopper in a direction toward the other half-door structure.
[0019] Preferably, the outer side of the half-door structure is provided with an abutting leg, and the material door can be opened when the abutting leg presses vertically downward on the large end of the third funnel structure.
[0020] Preferably, the hopper is further provided with a limiting structure that can abut against the abutting leg, and the limiting structure is located on the rotation path of the abutting leg.
[0021] Preferably, the lower part of the hopper is provided with hopper support legs for supporting the hopper, and the bottom of the hopper support legs is lower than the bottom of the abutment legs.
[0022] Preferably, the hopper is provided with a spiral structure, which is vertically arranged and leads to the opening. The spiral structure is detachably connected to the hopper. This is used to reduce the impact force of materials on the half-door structure and prevent the half-door structure from deforming too much and becoming unable to open.
[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0024] The material feeding device of the underwater screed described in this application, during construction, involves pressing the upper feeding pipe vertically downwards from the material box, thereby opening the material gate and connecting the hopper to the upper feeding pipe. At this time, the stone material in the hopper falls into the upper feeding pipe and then into the lower feeding pipe. Meanwhile, some air or water in the upper and lower feeding pipes is discharged through a first channel between the upper and lower feeding pipes, achieving the goal of smooth material flow from the material box to the lower feeding pipe, thus ensuring smooth material feeding during the operation of the screed. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the feeding mechanism structure of this application.
[0026] Figure 2 This is a schematic diagram of the material box structure of this application.
[0027] Figure 3 This is a schematic diagram of the initial state in which the material box and the limiting ring are in contact.
[0028] Figure 4 This is a schematic diagram of the state of the limiting ring blocking the half-door structure of this application.
[0029] Figure 5 This is a schematic diagram of the upper feed pipe of this application.
[0030] Figure 6 This is a schematic diagram of the first block layout in this application.
[0031] Figure 7 This is a schematic diagram of the lower feed pipe of this application.
[0032] Figure 8 This is a schematic diagram showing the fit between the upper feed pipe and the lower feed pipe of this application. Detailed Implementation
[0033] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.
[0034] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.
[0035] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.
[0036] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.
[0037] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.
[0038] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.
[0039] Example 1
[0040] like Figure 1-8 As shown, this utility model provides a feeding device for an underwater leveling machine, including a material box 71, an upper feeding pipe 72, and a lower feeding pipe 73:
[0041] The upper feed pipe 72 is connected above the lower feed pipe 73, and a first channel 74 is provided between the upper feed pipe 72 and the lower feed pipe 73;
[0042] The material box 71 includes a hopper 711, the bottom of which has an opening 712. A material gate 713 is provided at the opening 712. The material gate 713 can be closed or opened. The material gate 713 and the upper discharge pipe 72 are configured such that when the material box 71 presses the upper discharge pipe 72 vertically downward, the material gate 713 can be opened, so that the hopper 711 is connected to the upper discharge pipe 72.
[0043] The material feeding device of the underwater screed described in this application, during construction, involves pressing the upper feeding pipe 72 vertically downward by the material box 71, thereby opening the material gate 713 and connecting the hopper 711 with the upper feeding pipe 72. At this time, the stone material in the hopper 711 falls into the upper feeding pipe 72 and then into the lower feeding pipe 73. Meanwhile, some air or water in the upper feeding pipe 72 and the lower feeding pipe 73 is discharged through the first channel 74 between the upper feeding pipe 72 and the lower feeding pipe 73, achieving the purpose of smooth material feeding from the material box 71 to the lower feeding pipe 73, thus achieving the purpose of smooth material feeding during the operation of the screed.
[0044] In a preferred embodiment, the upper feed pipe 72 is inserted into the lower feed pipe 73.
[0045] In a preferred embodiment, the lower feed pipe 73 includes a bottom pipe structure 731 and a first funnel structure 732 connected to the top of the bottom pipe structure 731, with the larger end of the first funnel structure 732 facing the upper feed pipe 72.
[0046] In a preferred embodiment, the upper feeding pipe 72 includes an upper pipe structure 721, with a plurality of protrusions 722 arranged circumferentially on the outer wall of the upper pipe structure 721. A first gap 723 is provided between adjacent protrusions 722. The outer surface of each protrusion 722 is an inclined surface 724 corresponding to the first funnel structure 732. The lower part of the upper pipe structure 721 is inserted into the bottom pipe structure 731, and a second gap 725 communicating with the first gap 723 is provided between the outer wall of the upper pipe structure 721 and the inner wall of the bottom pipe structure 731.
[0047] In a preferred embodiment, the bottom tube structure 731 and the first funnel structure 732 are welded together, and a first connecting rib 733 is welded between the outer wall of the bottom tube structure 731 and the outer wall of the first funnel structure 732. A plurality of lower lifting lugs 734 are connected to the top outer wall of the first funnel structure 732, and all the lower lifting lugs 734 are arranged circumferentially along the first funnel structure 732.
[0048] In a preferred manner, all of the lower lugs 734 are located near the large opening end of the first funnel structure 732.
[0049] In a preferred embodiment, the upper feeding pipe 72 further includes a second funnel structure 726 sleeved on the outside of the upper pipe structure 721. The second funnel structure 726 faces the first funnel structure 732 and can cover the large opening end of the first funnel structure 732. A third gap 741 is connected between the first funnel structure 732 and the second funnel structure 726 through the first gap 723. The third gap 741, the first gap 723 and the second gap 725 form the first channel 74.
[0050] In a preferred embodiment, the upper tube structure 721 is provided with a first block 720 on the outer side of the portion below the first funnel structure 732, and at least one side of the first block 720 can laterally abut against the inner wall of the bottom tube structure 731. This is to increase the connection stability between the upper tube structure 721 and the lower feed tube 73.
[0051] In a preferred embodiment, the upper tube structure 721 further includes at least two upper tube sections 727 that are detachably connected in sequence along the length of the upper tube structure 721, and the second funnel structure 726 is located on the lowermost upper tube section 727.
[0052] In a preferred embodiment, the upper tube structure 721 further includes a third funnel structure 728 connected to the top of the upper tube structure 721, with the larger end of the third funnel structure 728 facing upwards.
[0053] In a preferred embodiment, the material box 71 further includes a hopper 711, the bottom of which has an opening 712, and a material gate 713 is provided at the opening 712. The material gate 713 can be closed or opened, and the material gate 713 and the third funnel structure 728 are configured such that when the material gate 713 presses the third funnel structure 728 vertically downward, the material gate 713 can be opened.
[0054] In a preferred embodiment, the material gate 713 can be opened when it presses the large end of the third funnel structure 728 vertically downward.
[0055] In a preferred embodiment, the top of the third funnel structure 728 is provided with a limiting ring 729 protruding upward; the limiting ring 729 can vertically abut against the material gate 713.
[0056] In a preferred embodiment, the material gate 713 includes two opposing half-gate structures 714, which are hinged to the hopper 711 via a first hinge shaft 716. When the material gate 713 presses vertically downward against the large end of the third funnel structure 728, the two half-gate structures 714 rotate in opposite directions to form an opening 712 connecting the hopper 711 and the first funnel structure 732.
[0057] In a preferred embodiment, the two first hinge shafts 716 are arranged in parallel, and the half-door structure 714 is eccentrically hinged to the hopper 711 in a direction toward the other half-door structure 714.
[0058] In a preferred embodiment, the outer side of the half-door structure 714 is provided with an abutment leg 717, which can open the material gate 713 when the abutment leg 717 presses vertically downward against the large opening end of the third funnel structure 728.
[0059] In a preferred embodiment, the hopper 711 is further provided with a limiting structure 718 that can abut against the abutting leg 717, and the limiting structure 718 is located on the rotation path of the abutting leg 717.
[0060] In a preferred embodiment, the lower part of the hopper 711 is provided with a hopper support leg 719 for supporting the hopper 711, and the bottom of the hopper support leg 719 is lower than the bottom of the abutment leg 717.
[0061] The hopper 711 is equipped with a spiral structure, which is vertically oriented and leads to the opening 712. The spiral structure is detachably connected to the hopper 711. This structure is used to reduce the impact force of materials on the half-door structure 714 and prevent the half-door structure 714 from deforming too much and becoming unable to open.
[0062] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A feeding device for an underwater leveling machine, characterized in that, Includes a material bin (71), an upper feed pipe (72), and a lower feed pipe (73), wherein: The upper feed pipe (72) is connected above the lower feed pipe (73), and there is a first channel (74) between the upper feed pipe (72) and the lower feed pipe (73). The material box (71) includes a hopper (711), the bottom of which has an opening (712) and a material gate (713) at the opening (712). The material gate (713) can be closed or opened. The material gate (713) and the upper discharge pipe (72) are configured such that when the material box (71) presses the upper discharge pipe (72) vertically downward, the material gate (713) can be opened, so that the hopper (711) and the upper discharge pipe (72) are connected.
2. The material feeding device for an underwater leveling machine according to claim 1, characterized in that, The upper feed pipe (72) is inserted into the lower feed pipe (73).
3. The material feeding device for an underwater leveling machine according to claim 1, characterized in that, The lower feed pipe (73) includes a bottom pipe structure (731) and a first funnel structure (732) connected to the top of the bottom pipe structure (731), with the large end of the first funnel structure (732) facing the upper feed pipe (72). The upper feeding pipe (72) includes an upper pipe structure (721), and a plurality of protrusions (722) are arranged circumferentially on the outer wall of the upper pipe structure (721). There is a first gap (723) between adjacent protrusions (722). The outer side of the protrusion (722) is an inclined surface (724) corresponding to the first funnel structure (732). The lower part of the upper pipe structure (721) is inserted into the bottom pipe structure (731), and there is a second gap (725) between the outer wall of the upper pipe structure (721) and the inner wall of the bottom pipe structure (731) that communicates with the first gap (723).
4. The material feeding device for an underwater leveling machine according to claim 3, characterized in that, The upper feed pipe (72) also includes a second funnel structure (726) sleeved on the outside of the upper pipe structure (721). The second funnel structure (726) faces the first funnel structure (732) and can cover the large end of the first funnel structure (732). There is a third gap (741) between the first funnel structure (732) and the second funnel structure (726) that is connected to the first gap (723). The third gap (741), the first gap (723) and the second gap (725) form the first channel (74).
5. The material feeding device for an underwater leveling machine according to claim 4, characterized in that, The upper tube structure (721) is provided with a first block (720) on the outer side of the lower part of the first funnel structure (732), and at least one side of the first block (720) can laterally abut against the inner wall of the bottom tube structure (731).
6. The material feeding device for an underwater leveling machine according to claim 4, characterized in that, The upper tube structure (721) further includes at least two upper tube sections (727) that are detachably connected in sequence along the length of the upper tube structure (721), and the second funnel structure (726) is located on the lowermost upper tube section (727).
7. The material feeding device for an underwater leveling machine according to claim 3, characterized in that, The upper tube structure (721) also includes a third funnel structure (728) connected to the top of the upper tube structure (721), with the large end of the third funnel structure (728) facing upward.
8. The material feeding device for an underwater leveling machine according to claim 7, characterized in that, The material gate (713) and the third funnel structure (728) are configured such that the material gate (713) can be opened when the material gate (713) presses the third funnel structure (728) vertically downward.
9. The material feeding device for an underwater leveling machine according to claim 8, characterized in that, The material gate (713) includes two opposing half-gate structures (714), which are hinged to the hopper (711) via a first hinge shaft (716). When the material gate (713) presses down vertically on the large end of the third funnel structure (728), the two half-gate structures (714) rotate in opposite directions to form an opening (712) connecting the hopper (711) and the first funnel structure (732).
10. The material feeding device for an underwater leveling machine according to claim 9, characterized in that, The two first hinge shafts (716) are arranged in parallel, and the half-door structure (714) and the hopper (711) are eccentrically hinged in the direction toward the other half-door structure (714); And / or, The half-door structure (714) has an outwardly protruding abutting leg (717). When the abutting leg (717) presses vertically downward against the large opening end of the third funnel structure (728), the material gate (713) can be opened. And / or, The hopper (711) is also provided with a limiting structure (718) that can abut against the abutting leg (717), and the limiting structure (718) is located on the rotation path of the abutting leg (717). And / or, The lower part of the hopper (711) is provided with a hopper support leg (719) for supporting the hopper (711), and the bottom of the hopper support leg (719) is lower than the bottom of the abutment leg (717). And / or, The hopper (711) is provided with a spiral structure, which is arranged vertically and leads to the opening (712). The spiral structure is detachably connected to the hopper (711).