Underground diaphragm wall trenching machine

Abstract

The utility model discloses an underground diaphragm wall trenching machine, which relates to the technical field of trenching machines and comprises a trenching machine body, a steel wire rope of the trenching machine body is connected with a connecting frame, an air cylinder is connected inside the connecting frame, an ejector rod of the air cylinder is connected with a fixing plate, and the bottom of the fixing plate is connected with a connecting rod. According to the device, the problems that due to the fact that a large amount of soil is prone to adhering to the lower side of a mud scraping plate, the soil is only transferred to the lower side of the mud scraping plate from the interior of the grab bucket, and the grabbing amount is difficult to effectively increase are solved, a lead screw in the device can drive a second mud scraping plate to move to conduct secondary scraping on the soil on the lower side of a first mud scraping plate, and the grabbing efficiency is improved. Due to the fact that the area of one side of the second mud scraping plate is small, a large amount of soil is difficult to adhere to one side of the second mud scraping plate, and when the grab bucket grabs the soil next time, the grabbing amount can be effectively increased due to the fact that the interior of the grab bucket and the lower side of the first mud scraping plate do not contain a large amount of soil.

Description

Technical Field

[0001] The utility model relates to the technical field of troughing machines, and more specifically to an underground continuous wall troughing machine. Background Art

[0002] A trenching machine, also known as a slotting machine, is a mechanical device used to excavate trenches from the ground surface downwards during the construction of underground continuous walls. Its use in construction projects began in the late 1950s. During operation, a trench of a specified width and depth is excavated in the soil or rock mass based on ground conditions and project design. A reinforcement cage is then placed and concrete is poured to form the underground continuous wall.

[0003] The utility model patent with authorization announcement number: CN216999909U discloses an underground continuous wall trenching machine, which involves a trenching machine body, steel rope, fixed seat, fixed frame, bearing seat, grab, rotating shaft, spring, and scraper. The grab can grab the soil and rotate through the rotating shaft. When the grab rotates, the elastic action of the spring allows the scraper to always fit with the inner wall of the grab. The soil in the grab is basically cleaned through the mutual cooperation of the spring and the scraper, thereby optimizing the efficiency of trenching.

[0004] Regarding the above scheme: The inventor believes that the above reference document shows that the grab bucket rotates around the rotating axis as the center of the circle. When the grab bucket rotates, the soil inside will be scraped off by the scraper plate, and the spring can make the scraper plate always fit with the inner wall of the grab bucket to complete the cleaning of the soil inside the grab bucket, thereby optimizing the grooving efficiency. However, due to the stickiness of the wet soil underground, when the scraper plate scrapes the soil inside the grab bucket, the soil easily adheres to the lower side of the scraper plate in large quantities, which causes the soil to be transferred from the inside of the grab bucket to the lower side of the scraper plate. When grabbing the soil next time, it is difficult to effectively increase the grabbing amount, thereby affecting the grooving efficiency. Utility Model Content

[0005] In response to the problems existing in the prior art, the purpose of the present utility model is to provide an underground continuous wall trenching machine, which can effectively solve the problem that when the scraper scrapes the soil inside the grab bucket, the soil tends to adhere to the lower side of the scraper blade in large quantities, which causes the soil to be transferred from the inside of the grab bucket to the lower side of the scraper blade, making it difficult to effectively increase the grabbing amount during the next grab.

[0006] In order to solve the above problems, the utility model adopts the following technical solution: an underground continuous wall trenching machine, comprising a trenching machine body, the trenching machine body is connected to a connecting frame at the steel wire rope, the interior of the connecting frame is connected to a cylinder, the top rod of the cylinder is connected to a fixed plate, the bottom of the fixed plate is connected to a connecting rod, the interior of the connecting frame is connected to a first hollow block, the interior of the first hollow block is inserted with an axial rod, a grab is connected to the axial rod, and the grab is connected to the connecting rod, a scraping mechanism is provided inside the grab, and the scraping mechanism is used to scrape the soil inside the grab.

[0007] In order to clean the mud inside the grab bucket to increase the grabbing amount, preferably, the scraping mechanism includes a first scraper connected to one side of the first hollow block, a drive motor is provided on one side of the top of the first scraper, and the drive motor is connected to one side of the first hollow block, a screw is installed on the output shaft of the drive motor, a concave plate is connected to the surface of the screw, and the concave plate is sleeved on the outside of the first scraper, a second scraper is provided at the bottom of the concave plate, and the second scraper is provided at the bottom of the first scraper.

[0008] In order to better remove the mud from the second scraper, preferably, one side of the second scraper is connected to a vibration motor, and the side of the vibration motor away from the second scraper is connected to a third scraper.

[0009] In order to prevent the vibration motor from being contaminated with mud and thus damaged, preferably, a shielding plate is connected to the bottom of the third scraper, and the shielding plate is located below the vibration motor.

[0010] In order to connect and fix the concave plate and the second scraper blade, and to subsequently disassemble the second scraper blade, preferably, a first thread groove is provided at the top end of the concave plate, a bolt is connected to the inside of the first thread groove, and a second thread groove is provided at the top end of the second scraper blade, and the bolt is connected to the inside of the second thread groove.

[0011] In order to enable the concave plate to move more smoothly on the upper side of the first scraper blade, preferably, a mounting groove is opened inside the concave plate, and a ball is connected inside the mounting groove.

[0012] In order to prevent the screw and the first scraper from deformation and breakage, preferably, a second hollow block is connected to one side of the top of the first scraper, a bearing is connected to the inside of the second hollow block, and the bearing is sleeved on the screw.

[0013] In order to prevent the first scraper from breaking when scraping mud in the grab bucket, preferably, a reinforcement rod is provided on one side of the concave plate, one end of the reinforcement rod is connected to one side of the top of the first scraper, and the other end of the reinforcement rod is connected to one side of the first hollow block.

[0014] In order to prevent the driving motor from being splashed onto the soil and being damaged by foreign objects, preferably, a protective shell is provided on the outside of the driving motor, and one side of the protective shell is connected to one side of the first hollow block.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] The first scraper in this device can scrape the soil inside the grab bucket, and the screw can drive the second scraper to move under the first scraper through the concave plate to scrape the soil under the first scraper for the second time. Since the area of one side of the second scraper is smaller, it is difficult for a large amount of soil to adhere to one side of the second scraper, so that it can be smoothly separated from the first scraper. This makes it possible to effectively increase the grabbing amount when the grab bucket grabs the soil next time because there is not much soil inside the grab bucket and on the lower side of the first scraper, making the digging efficiency higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the utility model;

[0019] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 4 This is a schematic structural diagram of a concave plate in an embodiment of the present utility model;

[0021] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure at B in the middle;

[0022] Figure 6 This is a schematic cross-sectional view of the concave plate in an embodiment of the present utility model;

[0023] Figure 7 For this utility model Figure 6 Schematic diagram of the enlarged structure at C in the middle;

[0024] Figure 8 It is a structural schematic diagram of the reinforcement rod in an embodiment of the present utility model.

[0025] Description of the numbers in the figure:

[0026] 1. Grooving machine body; 21. Connecting frame; 22. Cylinder; 23. Fixed plate; 24. Connecting rod; 25. First hollow block; 26. Shaft; 27. Grab bucket; 31. First scraper; 32. Drive motor; 33. Screw; 34. Concave plate; 35. Second scraper; 41. Vibration motor; 42. Third scraper; 5. Shielding plate; 61. First thread groove; 62. Second thread groove; 63. Bolt; 71. Mounting groove; 72. Ball; 8. Reinforcement rod; 91. Second hollow block; 92. Bearing; 10. Protective shell. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0028] Example:

[0029] See also Figure 1-3 A trenching machine for underground continuous walls includes a trenching machine body 1. The trenching machine body 1 is connected to a connecting frame 21 at the steel wire rope, the interior of the connecting frame 21 is connected to a cylinder 22, and the top rod of the cylinder 22 is connected to a fixed plate 23; the connecting frame 21 can be connected to the trenching machine body 1, and the cylinder 22 can be placed inside the connecting frame 21, and the cylinder 22 can drive the connecting rod 24 to move up and down through the fixed plate 23.

[0030] In addition, a connecting rod 24 is connected to the bottom of the fixed plate 23, and a first hollow block 25 is connected to the inside of the connecting frame 21. A shaft 26 is inserted into the inside of the first hollow block 25, and a grab bucket 27 is connected to the shaft 26. The grab bucket 27 is connected to the connecting rod 24, and a scraping mechanism is provided inside the grab bucket 27 for scraping the soil inside the grab bucket 27; the first hollow block 25 is located inside the connecting frame 21 and can be connected to the grab bucket 27 through the shaft 26, so that the grab bucket 27 can rotate around the shaft 26 as the axis, and the connecting rod 24 can connect the fixed plate 23 and the grab bucket 27, so that when the cylinder 22 drives the connecting rod 24 to move through the fixed plate 23, the connecting rod 24 can drive the grab bucket 27 to rotate around the shaft 26 as the axis, so that the grab bucket 27 can achieve the effect of grabbing and pouring out the soil.

[0031] See also Figure 2-4The scraping mechanism includes a first scraper 31 connected to one side of the first hollow block 25; one side of the first scraper 31 is in contact with the inner wall of the grab bucket 27, so that when the grab bucket 27 rotates to pour out the soil, the first scraper 31 can simultaneously scrape the soil inside the grab bucket 27, thereby making the interior of the grab bucket 27 cleaner and less likely to retain too much soil.

[0032] In addition, a drive motor 32 is provided on one side of the top of the first scraper blade 31, and the drive motor 32 is connected to one side of the first hollow block 25, and a screw rod 33 is installed on the output shaft of the drive motor 32; the drive motor 32 can be used to connect the screw rod 33, so that the screw rod 33 can be stabilized on the upper side of the first scraper blade 31, and the drive motor 32 can also drive the screw rod 33 to rotate, making the rotation of the screw rod 33 more convenient.

[0033] In addition, a concave plate 34 is connected to the surface of the screw rod 33, and the concave plate 34 is sleeved on the outside of the first scraper 31, and a second scraper 35 is provided at the bottom of the concave plate 34, and the second scraper 35 is provided at the bottom of the first scraper 31; the concave plate 34 can be driven to move by the rotating screw rod 33, and the concave plate 34 can also be connected to the second scraper 35, and drive the second scraper 35 to move together when moving, and the second scraper 35 is located on the lower side of the first scraper 31, and can be moved after the first scraper 31 has scraped the mud inside the grab bucket 27. The second scraper 35 moves to further scrape the soil on the lower side of the first scraper 31. Since the height of the second scraper 35 is relatively low, the area of one side of the second scraper 35 is also relatively small. As a result, when the second scraper 35 scrapes the soil on the lower side of the first scraper 31, it is difficult for a large amount of soil to adhere to one side of the second scraper 35, so that it can be smoothly separated from the first scraper 31. In this way, when the grab bucket 27 grabs the soil next time, since there is not much soil inside the grab bucket 27 and on the lower side of the first scraper 31, the grabbing amount can be effectively increased, making the grooving efficiency higher.

[0034] It should be noted that the grooving machine body 1 and the connecting frame 21 are an integral part, the upper inner wall of the connecting frame 21 is connected to the cylinder 22 by bolts, the top rod of the cylinder 22 is connected to the upper surface of the fixed plate 23 by bolts, the bottom of the fixed plate 23 is rotatably connected to one end of the connecting rod 24, the upper side of the first hollow block 25 and the inner lower side of the connecting frame 21 are an integral part, the shaft 26 and the first hollow block 25 are an integral part, the grab 27 is sleeved on the outside of the shaft 26 and can be rotated on the outside of the shaft 26, and the grab The top end of 27 is rotatably connected to the lower end of the connecting rod 24, the first scraper 31 is fixed to one side of the first hollow block 25 by welding, the drive motor 32 is connected to the hollow shell 25 by bolts, and the output shaft of the drive motor 32 is keyed to a screw rod 33, the concave plate 34 is threadedly connected to the outer surface of the screw rod 33, and the concave plate 34 is also sleeved on the outer side of the first scraper 31, the second scraper 35 is located on the lower side of the concave plate, and the upper surface of the second scraper 35 is in sliding contact with the lower surface of the first scraper 31.

[0035] See also Figure 2 and Figure 4 , one side of the second scraper blade 35 is connected to a vibration motor 41, and the side of the vibration motor 41 away from the second scraper blade 35 is connected to the third scraper blade 42; the vibration motor 41 can be connected to the second scraper blade 35 and the third scraper blade 42, so that the third scraper blade 42 can replace the second scraper blade 35 to scrape the mud on the lower side of the first scraper blade 31, and the area of the third scraper blade 42 and the second scraper blade 35 are equal. After the third scraper blade 42 hangs up the mud, the vibration motor 41 can drive the third scraper blade 42 to vibrate up and down, thereby shaking off the mud adhered to one side of the third scraper blade 42, which can make one side of the third scraper blade 42 cleaner.

[0036] See also Figure 3 The bottom of the third scraper 42 is connected to a shielding plate 5, and the shielding plate 5 is located below the vibration motor 41; the shielding plate 5 can activate the effect of shielding the vibration motor 41, so that when the third scraper 42 scrapes the soil, the soil is not easy to adhere to the surface of the vibration motor 41, thereby making the vibration motor 41 less likely to be damaged.

[0037] See also Figure 6 and Figure 7A first thread groove 61 is provided at the top of the concave plate 34, and a bolt 63 is connected to the inside of the first thread groove 61. A second thread groove 62 is provided at the top of the second scraper blade 35, and the bolt 63 is connected to the inside of the second thread groove 62; the bolt 63 can be rotatably connected to the inside of the first thread groove 61 and the second thread groove 62 to achieve the effect of connecting the concave plate 34 and the second scraper blade 35, so that the second scraper blade 35 can be stably attached to the lower side of the concave plate 34. At the same time, the bolt 63 can also be detached from the second thread groove 62 by rotation, thereby facilitating the disassembly and replacement of the second scraper blade 35, which is suitable for the case where the second scraper blade 35 has been scraping soil for a long time and has cracks and damage.

[0038] See also Figure 7 A mounting groove 71 is provided inside the concave plate 34, and a ball 72 is connected to the inside of the mounting groove 71; the ball 72 can be installed inside the mounting groove 71, and the ball 72 is located on the upper side of the first scraper 31, so that when the concave plate 34 moves on the upper side of the first scraper 31, it can be smoother and less likely to feel blocked.

[0039] It should be noted that one side of the vibration motor 41 is welded to the second scraper blade 35, and the other side of the vibration motor 41 is also welded and fixed to the third scraper blade 42. The lower side of the third scraper blade 42 is fixed to the upper side of the baffle plate 5 by welding, and the baffle plate 5 is located on the lower side of the vibration motor 41. The bolt 63 is screwed into the inside of the first thread groove 61 and the second thread groove 62. The ball 72 can rotate inside the mounting groove 71, and the ball 72 can also roll on the upper side of the first scraper blade 31.

[0040] See also Figure 4 and Figure 5 A second hollow block 91 is connected to one side of the top of the first scraper blade 31, and a bearing 92 is connected to the inside of the second hollow block 91, and the bearing 92 is sleeved on the screw rod 33; the second hollow block 91 can be connected to the first scraper blade 31, and a bearing 92 can be installed inside the second hollow block 91, and the bearing 92 can be connected to the screw rod 33, thereby reinforcing the first scraper blade 31 and the screw rod 33, so that the first scraper blade 31 and the screw rod 33 can restrain each other and are not prone to deformation and breakage, and the bearing 92 will not hinder the rotation of the screw rod 33. At the same time, the second hollow block 91 is located at one end of the screw rod 33, which can effectively limit the moving distance of the concave plate 34 and the second scraper blade 35, so that the concave plate 34 is not easily separated from the screw rod 33.

[0041] See also Figure 8A reinforcing rod 8 is provided on one side of the concave plate 34, one end of the reinforcing rod 8 is connected to one side of the top of the first scraper blade 31, and the other end of the reinforcing rod 8 is connected to one side of the first hollow block 25; the reinforcing rod 8 can reinforce the connection between the first scraper blade 31, so that the first scraper blade 31 is more firmly connected to one side of the first hollow block 25 and is not prone to breakage or damage.

[0042] See also Figure 3 A protective shell 10 is provided on the outside of the driving motor 32, and one side of the protective shell 10 is connected to one side of the first hollow block 25; the protective shell 10 can protect the driving motor 32, so that the driving motor 32 is not easily damaged by foreign objects, and it can also prevent mud from splashing onto the driving motor 32, thereby extending the service life of the driving motor 32.

[0043] It should be noted that: the bottom of the second hollow block 91 is welded to the top of the first scraper 31, the bearing 92 is interference inserted into the interior of the second hollow block 91, and at the same time, the interior of the bearing 92 is welded to the outer surface of the screw rod 33, one end of the reinforcement rod 8 is welded to the first scraper 31, and the other end of the reinforcement rod 8 is welded to the first hollow block 25, and the protective shell 10 is fixed to one side of the first hollow block 25 by bolts.

[0044] The working principle and usage process of the present invention are as follows: when using the device, first start the cylinder 22 to drive the fixed plate 23 to move, and the fixed plate 23 will drive the connecting rod 24 to move together. At the same time, the connecting rod 24 will drive the grab bucket 27 to rotate and open with the shaft rod 26 as the axis. After that, the staff can control and drive the connecting frame 21 to move by driving the troughing machine body 1. The connecting frame 21 will drive the grab bucket 27 to move into the soil. Then, the cylinder 22 can be controlled to drive the fixed plate 23 to move in the opposite direction, thereby achieving the effect of closing the grab bucket 27. At this time, the grab bucket 27 can grab the soil.

[0045] After grabbing the soil, the cylinder 22 can be controlled again to drive the fixed plate 23 to move, thereby opening the grab bucket 27 to let the soil fall down. When the grab bucket 27 is rotating, the first scraper 31 will scrape the soil on the inner wall of the grab bucket 27, so that the inner wall of the grab bucket 27 is cleaner and not prone to excessive soil residue. After the first scraper 31 has scraped the soil, the drive motor 32 can be started to drive the screw rod 33 to rotate, and the screw rod 33 will drive the concave plate 34 to move, and the concave plate 34 will drive the second scraper 35 to move together. At the same time, the second scraper 35 will move on the lower side of the first scraper 31, and the second scraper 35 will drive the third scraper 42 to move together through the vibration motor 41, and then the third scraper 42 can scrape the soil on the lower side of the first scraper 31 for the second time. Since the area of one side of the third scraper 42 is smaller The third scraper 42 is preferably used to remove dirt from the bucket 27 and the dirt from the first scraper 31.

[0046] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and improved ideas of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An underground continuous wall trenching machine, comprising a trenching machine body (1), characterized in that: The groove forming machine body (1) is connected to a connecting frame (21) at the wire rope, the interior of the connecting frame (21) is connected to a cylinder (22), the top rod of the cylinder (22) is connected to a fixed plate (23), the bottom of the fixed plate (23) is connected to a connecting rod (24), the interior of the connecting frame (21) is connected to a first hollow block (25), the interior of the first hollow block (25) is provided with an axial rod (26), a grab bucket (27) is connected to the axial rod (26), and the grab bucket (27) is connected to the connecting rod (24), and a scraping mechanism is provided inside the grab bucket (27), and the scraping mechanism is used to scrape the soil inside the grab bucket (27).

2. The underground continuous wall trenching machine according to claim 1, characterized in that: The scraping mechanism comprises a first scraper (31) connected to one side of a first hollow block (25); a driving motor (32) is provided on one side of the top of the first scraper (31), and the driving motor (32) is connected to one side of the first hollow block (25); a screw (33) is installed on the output shaft of the driving motor (32); a concave plate (34) is connected to the surface of the screw (33), and the concave plate (34) is sleeved on the outside of the first scraper (31); a second scraper (35) is provided at the bottom of the concave plate (34), and the second scraper (35) is arranged at the bottom of the first scraper (31).

3. The underground continuous wall trenching machine according to claim 2, characterized in that: One side of the second scraper blade (35) is connected to a vibration motor (41), and the side of the vibration motor (41) away from the second scraper blade (35) is connected to a third scraper blade (42).

4. The underground continuous wall trenching machine according to claim 3, characterized in that: The bottom of the third scraper (42) is connected to a shielding plate (5), and the shielding plate (5) is located below the vibration motor (41).

5. The underground continuous wall trenching machine according to claim 2, characterized in that: A first thread groove (61) is formed at the top of the concave plate (34), a bolt (63) is connected inside the first thread groove (61), and a second thread groove (62) is formed at the top of the second scraper plate (35), and the bolt (63) is connected inside the second thread groove (62).

6. The underground continuous wall trenching machine according to claim 2, characterized in that: A mounting groove (71) is provided inside the concave plate (34), and a ball (72) is connected inside the mounting groove (71).

7. The underground continuous wall trenching machine according to claim 2, characterized in that: A second hollow block (91) is connected to one side of the top of the first scraper (31), a bearing (92) is connected inside the second hollow block (91), and the bearing (92) is sleeved on the screw rod (33).

8. The underground continuous wall trenching machine according to claim 2, characterized in that: A reinforcing rod (8) is provided on one side of the concave plate (34), one end of the reinforcing rod (8) is connected to one side of the top of the first scraper (31), and the other end of the reinforcing rod (8) is connected to one side of the first hollow block (25).

9. The underground continuous wall trenching machine according to claim 2, characterized in that: A protective shell (10) is provided on the outside of the driving motor (32), and one side of the protective shell (10) is connected to one side of the first hollow block (25).

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