Tunnel excavation device

Abstract

The utility model discloses a tunnel excavation device, which belongs to the technical field of tunnel construction and comprises a control main body, a driving chassis is rotatably mounted at the bottom end of the control main body, a driving arm is rotatably mounted on one side of the control main body, and a bucket is mounted at the bottom of the driving arm. The driving arm and the bucket are fixedly connected through a clamping structure used for flexibly and conveniently installing the bucket, a cleaning structure used for removing dust in an inner cavity of the bucket is rotationally installed on the inner wall of the bucket, and the bucket is clamped and fixed through mutual cooperation of a locking rotating plate and a locking hook by arranging the clamping structure; the device can adjust the direction of the bucket according to actual requirements, it is ensured that the excavating work of the device can accurately adapt to various complex construction environments, the excavating efficiency and quality are improved, meanwhile, an electric rod and a connecting frame are arranged, tight connection between a locking rotating plate and a lock hook is further enhanced, the stability of the bucket in the lock hook is improved, and the practicability is high. The bucket is prevented from being easily separated from the lock hook, and the phenomenon that the bucket shakes or falls off is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of tunnel construction, specifically a tunnel excavation device. Background Technology

[0002] Tunnel excavation equipment is a specialized device for tunnel construction. It enables flexible excavation operations in confined spaces while maintaining high construction precision.

[0003] Chinese patent discloses an excavator suitable for excavating along the outline of loess tunnels (publication number CN203248165U). The patent includes a body, boom, stick, and bucket. Cutter grooves are welded on both sides of the bucket, and digging cutters are inserted through the cutter grooves. The digging cutter structure includes a cutter bar that cooperates with the cutter groove and an arc-shaped cutting edge that is integral with the cutter bar. The end of the arc-shaped cutting edge is conical, and a protective sleeve is welded to the end of the arc-shaped cutting edge. The cutter groove is welded to the bucket through spaced-apart reinforcements.

[0004] Therefore, based on the above search and combined with existing information, the internal space of tunnels is narrow and the requirements for excavation accuracy are extremely high. When using common backhoe excavators to excavate the curved part of the tunnel top, the excavation direction is limited, making it difficult to accurately excavate the arch shape of the tunnel top. However, this patent cannot adjust the installation direction of the bucket, which limits the flexibility and accuracy of the device's excavation operation, increases the construction difficulty, and may lead to excessive deviation in the arch shape, affecting the overall structural stability of the tunnel and the smooth progress of subsequent construction procedures. Utility Model Content

[0005] The purpose of this invention is to provide a tunnel excavation device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A tunnel excavation device includes a control body, a drive chassis rotatably mounted on the bottom end of the control body, a drive arm rotatably mounted on one side of the control body, a bucket mounted on the bottom of the drive arm, and the drive arm and the bucket are fixedly connected by a clamping structure for flexibly and conveniently installing the bucket. A cleaning structure for removing dust from the inner cavity of the bucket is rotatably mounted on the inner wall of the bucket.

[0008] The clamping structure includes a fixing frame, which is fixedly installed at the bottom end of the drive arm. An outer plate is fixedly installed on the bottom surface of the fixing frame. A locking hook for connecting the bucket is fixedly installed in the inner cavity of the outer plate. The top end of the bucket is rotatably located inside the locking hook via a connecting rod. A locking plate for fixing and limiting is rotatably installed on the top end of the locking hook.

[0009] As a further embodiment of this utility model, a magnetic block for stabilizing and locking the rotating plate is fixedly installed on the inner wall of the outer plate, and the magnetic block and the outer wall of the locking rotating plate are magnetically connected to ensure that the locking rotating plate will not rotate arbitrarily when it is in the open state.

[0010] As a further embodiment of this utility model, the locking rotating plate and the locking hook are provided in two sets, and the openings of the two sets of locking rotating plates and locking hooks are set in opposite positions. The inner cavity of each set of locking hooks and locking rotating plates is provided with an arc groove for supporting and connecting the bucket, and the inner diameter of each arc groove is the same.

[0011] As a further embodiment of this utility model, the inner cavity of the fixing frame is equipped with an electric rod for further enhancing the closing effect of the locking rotating plate. The bottom end of the electric rod is fixedly equipped with a connecting frame for driving the locking rotating plate to rotate and open, and the connecting frame is rotatably connected to the locking rotating plate.

[0012] As a further embodiment of this utility model, the cleaning structure includes a cleaning scraper, which is slidably located on the inner wall of the bucket. Both ends of the cleaning scraper are rotatably fitted with belts for driving the cleaning scraper to move, and both belts are rotatably embedded in the inner wall of the bucket on both sides.

[0013] As a further embodiment of this utility model, the two belts are rotatably connected by a drive rod for driving the belts to rotate. Both ends of the drive rod are provided with pulleys, and the drive rod is rotatably connected to the two belts respectively through the pulleys.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. When this utility model is used, a clamping structure is set up, and the locking rotating plate and the locking hook cooperate to clamp and fix the bucket, so as to meet the needs of the device to adjust the direction of the bucket according to actual needs, ensuring that the excavation work of the device can accurately adapt to various complex construction environments, improving excavation efficiency and quality. At the same time, an electric rod and a connecting frame are set up to further strengthen the tight connection between the locking rotating plate and the locking hook, improve the stability of the bucket inside the locking hook, ensure that the bucket will not easily detach from the locking hook, avoid the phenomenon of bucket shaking or falling off, and improve the safety of the device.

[0016] 2. When this utility model is used, by setting up a cleaning structure, the cleaning scraper driven by the belt moves along the bucket to remove soil clods that may be stuck to the inner wall of the bucket. While ensuring the cleanliness of the inside of the bucket, it does not require construction personnel to directly contact the dirt inside the bucket, which greatly improves the construction experience and improves the hygiene level and work efficiency of the entire construction process. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of a tunnel excavation device.

[0018] Figure 2 This is a structural diagram of the bucket in a tunnel excavation device.

[0019] Figure 3 This is a cross-sectional view of a clamping structure in a tunnel excavation device.

[0020] Figure 4 This is a detailed drawing of the clamping structure in a tunnel excavation device.

[0021] Figure 5 This is a split view of a cleaning scraper in a tunnel excavation device.

[0022] In the diagram: 1. Control unit; 2. Drive chassis; 3. Drive arm; 4. Bucket; 5. Clamping structure; 501. Fixing frame; 502. Outer plate; 503. Locking hook; 504. Locking rotating plate; 505. Thrust spring; 506. Magnet; 507. Electric rod; 508. Connecting frame; 5081. Connecting block; 5082. Tilting plate; 509. Connecting plate; 6. Cleaning structure; 601. Cleaning scraper; 602. Belt; 603. Drive rod; 604. Handle; 7. Connecting rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1: Please refer to Figures 1-4 A tunnel excavation device includes a control body 1, a drive chassis 2 rotatably mounted on the bottom end of the control body 1, a drive arm 3 rotatably mounted on one side of the control body 1, a bucket 4 mounted on the bottom of the drive arm 3, and the drive arm 3 and the bucket 4 are fixedly connected by a clamping structure 5 for flexibly and conveniently installing the bucket 4. A cleaning structure 6 for removing dust from the inner cavity of the bucket 4 is rotatably mounted on the inner wall of the bucket 4.

[0025] The clamping structure 5 includes a fixing frame 501, which is fixedly installed at the bottom end of the drive arm 3 by a pin. An outer plate 502 is fixedly installed on the bottom surface of the fixing frame 501. A locking hook 503 for connecting the bucket 4 is fixedly installed in the inner cavity of the outer plate 502. The top end of the bucket 4 is rotatably located in the locking hook 503 by a connecting rod 7. A locking rotating plate 504 for fixing and limiting is rotatably installed on the top end of the locking hook 503 by a pin.

[0026] Specifically, the connecting rod 7 is fixedly installed on the top of the bucket 4 by bolts. The inner wall of the locking hook 503 is provided with a slot for snapping and fixing the locking rotating plate 504, and the locking rotating plate 504 is located in the slot. The inner wall of the slot is fixedly installed with a thrust spring 505 for pushing the locking rotating plate 504 to always keep it in an open state, and one end of the thrust spring 505 is fixedly connected to the locking rotating plate 504.

[0027] The inner wall of the outer plate 502 is fixedly installed with a magnetic block 506 for stabilizing and locking the rotating plate 504, and the magnetic block 506 is magnetically connected to the outer wall of the locking rotating plate 504 so as to ensure that the locking rotating plate 504 will not rotate randomly when it is in the open state, effectively ensuring the stability of the device and providing convenience for installing the bucket 4. The material of the locking rotating plate 504 is steel plate.

[0028] The locking plate 504 and the locking hook 503 are provided in two sets, and the openings of the two sets of locking plates 504 and locking hooks 503 are set in opposite positions. The inner cavity of each set of locking hooks 503 and locking plates 504 is provided with an arc groove for supporting the connecting bucket 4, and the inner diameter of each arc groove is the same.

[0029] Specifically, when the device is operating in a complex and harsh tunnel construction environment, it may be affected by external impacts or mechanical failures, which may cause the locking plate 504 to open unexpectedly. By adopting the opposite opening method, the bucket 4 is prevented from completely disengaging from the locking hook 503 to a certain extent, reducing the risk of the bucket 4 falling off due to unexpected situations and avoiding safety accidents.

[0030] The inner cavity of the fixed frame 501 is equipped with an electric rod 507 for further enhancing the closing effect of the locking rotating plate 504. The bottom end of the electric rod 507 is fixedly equipped with a connecting frame 508 for driving the locking rotating plate 504 to rotate and open and close, and the connecting frame 508 is rotatably connected to the locking rotating plate 504.

[0031] Specifically, a connecting plate 509 is fixedly installed at the top of the electric pole 507, and the connecting plate 509 is fixedly connected to the inner wall of the fixing frame 501.

[0032] More specifically, the connecting frame 508 consists of a connecting block 5081 and a tilting plate 5082, and the connecting block 5081 and the tilting plate 5082 are rotatably connected by a pin. The connecting block 5081 is fixed at the bottom of the electric rod 507. There are two sets of tilting plates 5082, which are symmetrically and evenly distributed on both sides of the connecting block 5081. The ends of the two sets of tilting plates 5082 away from the connecting block 5081 are rotatably connected to the locking rotating plate 504 by a pin. The electric rod 507 pulls the connecting frame 508 to drive the locking rotating plate 504 to tilt and close, so as to ensure the stability of the bucket 4 inside the locking hook 503, so that the bucket 4 will not easily detach from the locking hook 503, ensuring the efficient operation of the device's digging work, avoiding the phenomenon of the bucket 4 shaking or falling off, and improving the efficiency and quality of the device's digging.

[0033] Example 2: Please refer to Figure 1 , Figure 2 , Figure 5 The cleaning structure 6 includes a cleaning scraper 601, which is slidably located on the inner wall of the bucket 4. Both ends of the cleaning scraper 601 are rotatably fitted with belts 602 for driving the cleaning scraper 601 to move, and both belts 602 are rotatably embedded in the inner wall of the bucket 4 on both sides.

[0034] Specifically, the bottom of the cleaning scraper 601 is provided with a silicone scraper strip to reduce damage to the inner wall of the bucket 4. Both sides of the inner wall of the bucket 4 are provided with rotating grooves for the belt 602, and the belt 602 is located in the rotating grooves.

[0035] The two belts 602 are rotatably connected by a drive rod 603 for driving the belts 602 to rotate. Both ends of the drive rod 603 are provided with pulleys on their outer walls, and the drive rod 603 is rotatably connected to the two belts 602 respectively through the pulleys.

[0036] Specifically, one end of the drive rod 603 is rotatably connected to the inner wall of the bucket 4 via a bearing, and the other end of the drive rod 603 passes through the bucket 4 and is connected to a handle 604. The handle 604 is designed to be detachable in order to reduce the space occupied by the bucket 4 and to carry out digging operations more flexibly.

[0037] The working principle of this utility model is as follows:

[0038] First, the connecting rod 7 at the top of the bucket 4 is placed inside the locking hook 503. The connecting rod 7 pushes the locking rotating plate 504 to disengage from the magnetic block 506 and squeezes the thrust spring 505, causing the locking rotating plate 504 to insert and engage in the slot, thus initially fixing and closing the locking rotating plate 504. At the same time, the electric rod 507 drives the connecting block 5081 to pull the tilting plate 5082 to rotate the locking rotating plate 504, thereby further strengthening the closing and fixing effect of the locking rotating plate 504. Then, the control body 1 drives the drive chassis 2 to move the entire device to a suitable position and controls the drive arm 3 to drive the bucket 4 to excavate the tunnel. Finally, after the excavation operation is completed, the handle 604 is inserted to drive the drive rod 603 to drive the belt 602 to rotate, so that the cleaning scraper 601 scrapes along the inner wall of the bucket 4 to remove any soil clods that may be stuck to the inner wall of the bucket 4.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tunnel excavation device, comprising a control body (1), characterized in that, The bottom end of the control body (1) is rotatably mounted with a drive chassis (2), and a drive arm (3) is rotatably mounted on one side of the control body (1). A bucket (4) is mounted on the bottom of the drive arm (3), and the drive arm (3) and the bucket (4) are fixedly connected by a clamping structure (5) for mounting the bucket (4). A cleaning structure (6) for removing dust from the inner cavity of the bucket (4) is rotatably mounted on the inner wall of the bucket (4). The clamping structure (5) includes a fixing frame (501), which is fixedly installed at the bottom end of the drive arm (3). An outer plate (502) is fixedly installed on the bottom surface of the fixing frame (501). A locking hook (503) for connecting the bucket (4) is fixedly installed in the inner cavity of the outer plate (502). The top end of the bucket (4) is rotated to be located in the locking hook (503) through the connecting rod (7). A locking plate (504) for fixing and limiting is rotatably installed on the top end of the locking hook (503).

2. The tunnel excavation device according to claim 1, characterized in that, The inner wall of the outer plate (502) is fixedly installed with a magnet (506) for stabilizing and locking the rotating plate (504), and the magnet (506) and the outer wall of the locking rotating plate (504) are magnetically connected to ensure that the locking rotating plate (504) will not rotate arbitrarily when it is in the open state.

3. The tunnel excavation device according to claim 1, characterized in that, The locking rotating plate (504) and the locking hook (503) are provided in two sets, and the openings of the two sets of locking rotating plates (504) and locking hooks (503) are set in opposite positions. The inner cavity of each set of locking hooks (503) and locking rotating plates (504) is provided with an arc groove for supporting and connecting the bucket (4), and the inner diameter of each arc groove is the same.

4. The tunnel excavation device according to claim 1, characterized in that, The inner cavity of the fixing frame (501) is equipped with an electric rod (507) for further enhancing the closing effect of the locking plate (504). The bottom end of the electric rod (507) is fixedly equipped with a connecting frame (508) for driving the locking plate (504) to rotate and open and close, and the connecting frame (508) is rotatably connected to the locking plate (504).

5. A tunnel excavation device according to claim 1, characterized in that, The cleaning structure (6) includes a cleaning scraper (601), which slides on the inner wall of the bucket (4). Both ends of the cleaning scraper (601) are rotatably fitted with belts (602) for moving the cleaning scraper (601), and both belts (602) are rotatably embedded in the inner wall of the bucket (4).

6. A tunnel excavation device according to claim 5, characterized in that, The two belts (602) are rotatably connected by a drive rod (603) for driving the belts (602) to rotate. Both ends of the drive rod (603) are provided with pulleys, and the drive rod (603) is rotatably connected to the two belts (602) respectively through the pulleys.

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