CN213709677U - Desilting mechanism and material laying device - Google Patents

Abstract

The utility model discloses a desilting mechanism and material laying device relates to immersed tube construction technical field. The dredging mechanism comprises a water pump, a connecting pipe and a dredging head. One end of the connecting pipe is connected with the water pump; the desilting head set up in the other end of connecting pipe, the desilting head include the linkage segment and inhale the silt section, the both ends of linkage segment respectively with inhale the silt section with the connecting pipe intercommunication, the linkage segment with inhale the silt section and be the contained angle setting. This desilting mechanism can reduce the disturbance of desilting in-process rivers to avoid the destruction of basal layer.

Description

Desilting mechanism and material laying device

Technical Field

The utility model relates to an immersed tube construction technical field especially relates to a desilting mechanism and material laying device.

Background

In the process of immersed tube construction, dredging operation is generally carried out under water, and then stones are conveyed to the water by a stone conveying system to be piled up to form a foundation layer. After the construction of the stone foundation layer is completed, the surrounding sludge can be backfilled to the surface of the foundation layer under the flowing action of water. Before the sinking pipe is installed, the silt on the surface of the foundation layer must be cleaned. However, the foundation layer is divided into a coarse stone material layer and a fine stone material layer, the lower layer is coarse stone material, the surface layer is fine stone material, the fine stone material is easily stirred by the dredging mechanism, and in the dredging process, the disturbance of water flow around the dredging mechanism is strong, so that the foundation layer is easily damaged.

In view of the above problems, it is desirable to develop a dredging mechanism and a material laying device to solve the problem of damage to the foundation layer caused by excessive disturbance of water flow during dredging.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a desilting mechanism and material laying device can reduce the disturbance of desilting in-process rivers to avoid the destruction of basal layer.

To achieve the purpose, the utility model adopts the following technical proposal:

a dredging mechanism comprising:

a water pump;

one end of the connecting pipe is connected with the water pump;

the desilting head set up in the other end of connecting pipe, the desilting head include the linkage segment and inhale the silt section, the both ends of linkage segment respectively with inhale the silt section with the connecting pipe intercommunication, the linkage segment with inhale the silt section and be the contained angle setting.

Preferably, the silt suction section comprises a first side wall and a second side wall which are oppositely arranged, and the distance between the first side wall and the second side wall is gradually increased along the direction far away from the connecting section.

Preferably, the silt suction section further comprises a third side wall and a fourth side wall which are oppositely arranged, and the distance between the third side wall and the fourth side wall is gradually reduced along the direction far away from the connecting section.

Preferably, the desilting head still includes the desilting board, the desilting board encircle set up in inhale the opening part of silt section and outwards extend.

Preferably, inhale inside water pipe and the shower nozzle that is provided with the intercommunication of silt section, the shower nozzle is used for scouring silt, is convenient for the desilting head will silt is siphoned away.

The utility model provides a material laying device, includes the frame, be provided with blanking mechanism in the frame and desilting mechanism.

Preferably, the blanking mechanism includes:

the blanking pipe is vertically arranged and comprises a discharging pipe, a transition pipe and a feeding pipe which are sequentially connected, the pipe diameter of the discharging pipe is larger than that of the feeding pipe, the pipe diameter of the transition pipe is gradually increased along the direction close to the discharging pipe, the feeding pipe is in matched connection with a material conveying pipeline, and the transition pipe and the discharging pipe are used for storing and keeping a preset amount of materials;

the scraping plate is arranged at the pipe opening of the discharge pipe, and the lower end face of the scraping plate is flush with the bottom of the discharge pipe.

Preferably, the front side and the rear side of the material paving direction of the blanking mechanism are respectively provided with the dredging mechanism.

Preferably, blanking mechanism still includes the cut-off valve, cut-off valve level set up and with discharging pipe sliding connection, the cut-off valve can insert in order to close in the discharging pipe.

Preferably, the rack comprises:

the support frames comprise support legs and longitudinal beams arranged on the support legs, and the longitudinal beams extend along the horizontal direction;

the two ends of the cross beam are respectively connected with the two longitudinal beams and are perpendicular to the longitudinal beams, and the cross beam can move along the extension direction of the longitudinal beams;

the mounting bracket is arranged on the cross beam in a sliding mode and can move along the length direction of the cross beam, the blanking pipe is arranged on the mounting bracket, and the dredging mechanism is arranged on the blanking pipe.

The utility model has the advantages that:

the utility model provides a desilting mechanism and material laying device. In this desilting mechanism, the suction that the water pump provided produces the disturbance through linkage segment and suction silt section to the rivers of suction silt section opening part to inhale silt. And the linkage segment is the contained angle setting with the desilting section, and the suction that can avoid the water pump to produce directly acts on the rivers of inhaling the desilting section opening part, reduces the disturbance of opening part rivers to the destroyed problem of basal layer has been avoided.

Drawings

FIG. 1 is a front view of the dredging mechanism provided by the present invention;

FIG. 2 is a side view of the dredging mechanism provided by the present invention;

fig. 3 is a front view of the blanking mechanism provided by the present invention;

fig. 4 is a side view of the blanking mechanism provided by the present invention.

1. A water pump; 2. dredging the head; 21. a pipeline; 22. a connecting section; 23. a sludge suction section; 231. a first side wall; 232. a second side wall; 233. a third side wall; 234. a fourth side wall; 24. a dredging plate; 3. a connecting pipe; 4. a blanking pipe; 41. a feeding pipe; 42. a transition duct; 43. a discharge pipe; 5. scraping the plate; 6. a connecting flange; 7. cutting off the valve; 8. a mounting frame; 9. a support rod.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The materials in this embodiment are illustrated by way of example of stones.

This embodiment provides a desilting mechanism. As shown in fig. 1 and 2, the dredging mechanism comprises a water pump 1, a connecting pipe 3 and a dredging head 2. The dredging head 2 comprises a pipeline 21, a connecting section 22 and a dredging section 23, two ends of the connecting section 22 are respectively communicated with the dredging section 23 and the pipeline 21, the connecting section 22 and the dredging section 23 form an included angle, and the pipeline 21 is communicated with the water pump 1 through a connecting pipe 3.

Set the linkage segment 22 and the section of inhaling of desilting 2 with the desilting head into the contained angle state, can make the rivers that water pump 1 was inhaled and come directly can not be taken away in desilting head 2, but can be in linkage segment 22 and the change of direction of the connection corner of inhaling desilting section 23, play the hindrance effect to rivers in other words, such structure setting can make the rivers disturbance of desilting head 2 opening part weaken, can not make the fine and thin building stones on building stones basic level upper strata by the disturbance of desilting mechanism, the completeness of basic level has been guaranteed.

Further, the sludge suction section 23 includes a first side wall 231 and a second side wall 232 which are oppositely arranged, and the distance between the first side wall 231 and the second side wall 232 gradually increases in a direction away from the connecting section 22.

The first side wall 231 and the second side wall 232 which are gradually opened enable the opening length of the silt suction section 23 to be larger, the dredging width of the dredging mechanism is greatly improved, and the dredging efficiency is improved.

Further, the sludge suction section 23 further comprises a third side wall 233 and a fourth side wall 234 which are oppositely arranged, and the distance between the third side wall 233 and the fourth side wall 234 is gradually reduced along the direction away from the connecting section 22.

The gradually narrowed third and fourth side walls 233, 234 make the opening of the dredging section 23 elongated, and the distance between the third and fourth side walls 233, 234 at the opening is smaller than the width of the stone, so that the stone is not sucked into the dredging head 2, and the stone is prevented from colliding with the dredging head 2 and blocking the pipeline 21 after being sucked into the dredging head 2.

In this embodiment, the first sidewall 231, the third sidewall 233, the second sidewall 232, and the fourth sidewall 234 of the sludge suction section 23 are connected in sequence, so that the cross-sectional shape of the sludge suction section 23 is a quadrangle.

In other embodiments, the number of the side walls of the sludge suction section 23 is not limited and can be adjusted as required, and the specific shape of the cross section of the sludge suction section 23 is not limited.

Preferably, the dredging head 2 further comprises a dredging plate 24, and the dredging plate 24 surrounds the opening of the dredging section 23 and extends outwards.

The dredging plate 24 can enlarge the disturbance range of the dredging section 23 in the dredging head 2 to water flow, improve the dredging efficiency and simultaneously block water flow and sludge. During the desilting, the desilting board 24 needs the certain distance apart with the surface of basic unit, can prevent on the one hand that the striking of desilting board 24 and basic unit from leading to damaging, and on the other hand also can reduce the influence of the suction of desilting device to the basic unit.

Furthermore, the inside water pipe and the shower nozzle that are provided with the intercommunication of silt suction section 23, the shower nozzle is used for scouring away silt, and the desilting head 2 of being convenient for is siphoned away silt.

According to needs, the spray head is used for spraying water to wash away the silt on the surface of the foundation layer, so that the silt is disturbed along with water flow, and the silt is conveniently sucked away by the dredging head 2.

It will be appreciated that the discharge end of the pump 1 extends out of the water surface.

The discharge end of the water pump 1 extends out of the water surface, so that sludge can be discharged to a designated area for centralized treatment, the environment pollution is prevented, and the sludge can be prevented from flowing back to the surface of the foundation layer again.

In the actual immersed tube construction process, the dredging mechanism is not used independently, but is used as a part of a material laying device and matched with the blanking mechanism to lay and dredge while blanking. Specifically, the blanking mechanism comprises a blanking pipe 4, and the blanking pipe 4 is used for laying a stone foundation layer.

In order to avoid the need of using compaction and leveling equipment to carry out compaction and leveling operation after blanking, the blanking mechanism in the embodiment also has the functions of compaction and leveling.

As shown in fig. 3 and 4, the blanking mechanism further includes a scraping plate 5 for scraping the surface of the laid base layer; the down pipe 4 is integrated with a compacting function. The blanking pipe 4 is of a three-section type and is respectively a discharge pipe 43, a transition pipe 42 and a feeding pipe 41. Wherein, the feeding pipe 41 is connected with the conveying pipeline 21 of the stone material in a matching way, the pipe diameter of the discharging pipe 43 is larger than that of the feeding pipe 41, the pipe diameter of the transition pipe 42 is gradually increased along the direction close to the discharging pipe 43, and the whole blanking pipe 4 is of a structure with a small top and a big bottom. The scraper 5 is a triangular plate that is disposed at the nozzle of the discharge pipe 43 and extends outward, and the lower end surface is flush with the bottom of the discharge pipe 43.

This blanking mechanism is when the operation, discharging pipe 43 bottom is unanimous with the thickness of predetermineeing of building stones basal layer apart from the height on ground, and when the building stones basal layer of blanking pipe 4 below reached to predetermineeing thickness, the building stones was stifled in discharging pipe 43 and transition pipe 42, along with the increase of the building stones in discharging pipe 43 and the transition pipe 42, played the effect of compaction to the basal layer, because big structure about blanking pipe 4 is big, can guarantee that the gravity of building stones is used completely on the basal layer. And after compaction is finished, when the blanking pipe 4 moves towards the laying direction, the bottom ends of the scraping plate 5 and the discharging pipe 43 scrape the compacted base layer. At the same time the rock material transport pipe 21 transports a suitable amount of rock material to the drop pipe 4, so that the amount of rock material discharged when the drop pipe 4 is moved matches the amount of rock material fed in through the pipe 21.

Wherein, the discharging pipe 43, the transition pipe 42 and the feeding pipe 41 are coaxially arranged.

The three sections of the blanking pipe 4 are coaxially arranged and are large in the upper part and the lower part, so that the weight of stored stones can be guaranteed to act on the base layer to the maximum extent, the weight of materials shared by the side wall of the transition pipe 42 is reduced, and the compaction effect is guaranteed.

Furthermore, the front side and the rear side of the material paving direction of the blanking mechanism are respectively provided with a dredging mechanism.

The desilting mechanism of both sides can be more thorough clears up silt around, guarantees the effect of desilting.

It will be appreciated that the pipe diameter of the tapping pipe 43 is equal to the preset laying width of the rock material.

The blanking pipe 4 moves along the laying direction of the stone, the width of the laid base layer is consistent with the preset laying width of the stone, and the stone in the discharging pipe 43 can be compacted on the whole base layer.

Preferably, the discharging pipe 43, the transition pipe 42 and the feeding pipe 41 are fixed in pairs by the connecting flange 6.

The connecting flange 6 is used for connection, so that the dismounting is convenient, the strength is high, the sealing performance is good, and the maintenance is convenient.

The blanking mechanism further comprises a shut-off valve 7, the shut-off valve 7 being horizontally arranged and slidably connected to the discharge pipe 43, the shut-off valve 7 being insertable into the discharge pipe 43 to close the discharge pipe 43.

When the down pipe 4 moves to near the end, the cut-off valve 7 is closed, blocking the falling of the rock material. Meanwhile, a certain space is provided between the cut-off valve 7 and the outlet of the discharge pipe 43. The space can store a portion of rock material equal in number to the amount of rock material required for the end position. The structure can prevent redundant stones from scattering on the stone foundation layer when the movement is finished.

Preferably, the blanking mechanism further comprises a hydraulic drive assembly capable of driving the shut-off valve 7 to slide relative to the discharge pipe 43 to open or close the discharge pipe 43.

As the discharging pipe 43 is full of stones, the cut-off valve 7 needs to penetrate through the gaps of the stones to insert the discharging pipe 43 to cut off the stones and close the outlet, so that the resistance is high and the cutting-off can be realized only by the driving force of a hydraulic device.

For example, the hydraulic drive assembly may be a hydraulic cylinder.

Further, this blanking mechanism still includes two support frames, crossbeam and the mounting bracket 8 of relative setting.

Mounting bracket 8 slides and sets up on the crossbeam, and blanking pipe 4 sets up on mounting bracket 8, and the desilting mechanism sets up on blanking pipe 4, and blanking pipe 4 can follow the length direction motion of mounting bracket 8 along the crossbeam, and the desilting mechanism can follow blanking pipe 4 and remove and clear up the silt of blanking pipe 4 front and back side. The support frame includes the supporting leg and sets up the longeron on the supporting leg, and the crossbeam slides and sets up on the longeron and can move along the longeron extending direction for the sweeping scope when the blanking pipe 4's blanking scope can cover the crossbeam and move along the extending direction of longeron. In the blanking and laying process, the blanking pipe 4 is blanked along the length direction of the cross beam, after the blanking is finished, the cross beam moves for a distance of 43 pipe diameters of the discharging pipe along the extension direction of the longitudinal beam, the blanking pipe 4 continues to move along the cross beam for blanking, and the process is repeated in this way, and the path of the blanking pipe 4 is in a Z shape.

Wherein, this blanking mechanism still includes bracing piece 9, and the both ends of bracing piece 9 are through screw nut fixed connection mounting bracket 8 and blanking pipe 4 respectively.

Bracing piece 9, mounting bracket 8 and blanking pipe 4 form triangle-shaped, consolidate the structure of mounting bracket 8 and blanking pipe 4, guarantee this blanking mechanism's steady operation, increase of service life.

Preferably, the blanking mechanism further comprises a first slide rail, a first slide block and a first linear motor. The first slide rail is arranged on the longitudinal beam and arranged along the extending direction of the longitudinal beam. The first sliding block slides on the first sliding rail under the driving of the first linear motor, and the cross beam is arranged on the first sliding block.

The crossbeam moves along first slide rail under the drive of first slider, is driven by first linear motor, can the position of accurate control crossbeam.

Preferably, the blanking mechanism further comprises a second slide rail, a second slide block and a second linear motor. The second slide rail sets up on the crossbeam and sets up along the length direction of crossbeam. The second slider slides on the second slide rail under the drive of second linear electric motor, and mounting bracket 8 sets up on the second slider.

The mounting bracket 8 moves along the second slide rail under the driving of the second slide block, is driven by the second linear motor, and can accurately control the position of the mounting bracket 8.

Through the two sets of structures, the mounting frame 8 can freely move on the area swept by the cross beam when moving along the direction of the support frame, so that the blanking pipe 4 can lay a foundation layer of stone in the area within the range of the support frame.

Wherein, be provided with lifting unit on the supporting leg, this lifting unit can drive longeron and rise or descend.

The lifting assembly drives the longitudinal beam to ascend or descend, and the distance from the lower end of the discharge pipe 43 to the ground can be adjusted.

Wherein, lift assembly includes rotating electrical machines, nut and lead screw.

The output shaft of the rotating motor is connected with the screw rod and can drive the screw rod to rotate, the nut can be connected with the first sliding rail and is in threaded connection with the screw rod, the nut can move along the length direction of the screw rod under the rotation of the screw rod and drives the first sliding rail to ascend or descend, and therefore the ascending and descending of the longitudinal beam are achieved.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims (10)

1. A desilting mechanism is used for cleaning silt in underwater operation, and is characterized by comprising:

a water pump (1);

one end of the connecting pipe (3) is connected with the water pump (1);

desilting head (2), set up in the other end of connecting pipe (3), desilting head (2) include linkage segment (22) and inhale silt section (23), the both ends of linkage segment (22) respectively with inhale silt section (23) with connecting pipe (3) intercommunication, linkage segment (22) with inhale silt section (23) and be the contained angle setting.

2. The dredging mechanism according to claim 1, wherein the dredging section (23) comprises a first side wall (231) and a second side wall (232) which are oppositely arranged, and the distance between the first side wall (231) and the second side wall (232) is gradually increased along the direction away from the connecting section (22).

3. The dredging mechanism according to claim 1, wherein the dredging section (23) further comprises a third side wall (233) and a fourth side wall (234) which are oppositely arranged, and the distance between the third side wall (233) and the fourth side wall (234) is gradually reduced along the direction away from the connecting section (22).

4. A dredging mechanism according to claim 1, wherein the dredging head (2) further comprises a dredging plate (24), the dredging plate (24) is arranged around the opening of the dredging section (23) and extends outwards.

5. A dredging mechanism according to claim 1, wherein the dredging section (23) is internally provided with a communicating water pipe and a spray head, and the spray head is used for washing the sludge so as to facilitate the dredging head (2) to suck away the sludge.

6. A material laying device comprises a machine frame, and is characterized in that a blanking mechanism and a dredging mechanism according to any one of claims 1-5 are arranged on the machine frame.

7. The material placement device of claim 6, wherein the blanking mechanism comprises:

the blanking pipe (4) is vertically arranged, the blanking pipe (4) comprises a discharging pipe (43), a transition pipe (42) and a feeding pipe (41) which are sequentially connected, the pipe diameter of the discharging pipe (43) is larger than that of the feeding pipe (41), the pipe diameter of the transition pipe (42) is gradually increased along the direction close to the discharging pipe (43), the feeding pipe (41) is connected with a material conveying pipeline (21) in a matched mode, and the transition pipe (42) and the discharging pipe (43) are used for storing and keeping a preset amount of materials;

the scraper plate (5), the scraper plate (5) set up in the mouth of pipe of discharging pipe (43), the lower terminal surface of scraper plate (5) with the bottom parallel and level of discharging pipe (43).

8. The material laying device according to claim 6, wherein the dredging mechanism is respectively arranged at the front side and the rear side of the material laying direction of the blanking mechanism.

9. Material laying device according to claim 7, wherein the blanking mechanism further comprises a shut-off valve (7), the shut-off valve (7) being arranged horizontally and being slidably connected to the discharge pipe (43), the shut-off valve (7) being insertable into the discharge pipe (43) for closing the discharge pipe (43).

10. The material laying device of claim 7 wherein the frame comprises:

the support frames comprise support legs and longitudinal beams arranged on the support legs, and the longitudinal beams extend along the horizontal direction;

the two ends of the cross beam are respectively connected with the two longitudinal beams and are perpendicular to the longitudinal beams, and the cross beam can move along the extension direction of the longitudinal beams;

mounting bracket (8), mounting bracket (8) slide set up in on the crossbeam and can follow the crossbeam length direction removes, blanking pipe (4) set up in on mounting bracket (8), the desilting mechanism set up in on blanking pipe (4).

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