Self-cleaning working device of trenching machine

Abstract

The utility model belongs to the technical field of trenching machines, and discloses a self-cleaning working device of a trenching machine. Comprising a trenching machine body, two grab buckets are rotatably mounted at the bottom of the trenching machine body, a lifting rotating mechanism is mounted at the tops of the grab buckets and comprises an outer pipe, an inner pipe is slidably mounted in the outer pipe, and a fixing ring is mounted at the bottom in the outer pipe. The air inlet pipe is connected with the external high-pressure air pump, the inner pipe extends into the grab bucket through thrust of high-pressure air, the fan blades, the fixing rod, the pawl, the rotating rod, the connecting ring and the spring clamp are additionally arranged, forward rotation of the inner pipe when the inner pipe enters the grab bucket is achieved, the high-pressure air is sprayed out through the spraying holes, residual materials in the grab bucket are cleaned, and the grab bucket is convenient to use. And compared with water, water resources can be saved, the cleaning cost is reduced, the grab bucket is in a closed state in the cleaning process, and the situation that the grab bucket is splashed to clothes of workers to affect follow-up work of the workers is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of slotting machines, and more specifically, to a self-cleaning working device of a slotting machine. Background Art

[0002] A trenching machine, also known as a slotting machine, is a mechanical equipment used to dig trenches from the ground surface downwards when constructing underground continuous walls. It is mainly used in construction projects. During operation, slot-shaped holes of a certain width and depth are excavated in the soil layer or rock mass according to geological conditions and engineering design, and steel cages are placed and concrete is poured to form underground continuous walls.

[0003] When the trough forming machine is in use, material is likely to remain inside the grab bucket, which requires manual cleaning using a high-pressure water pump. The cleaning cost is high and wastes water resources. Manual operation requires reaching into the grab bucket, which poses certain safety hazards and can easily cause stains to splash onto the staff, affecting their subsequent work. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a self-cleaning working device for a slotting machine.

[0005] To achieve the above object, the utility model provides the following technical solutions: a self-cleaning working device of a slotting machine, comprising a slotting machine body, two grab buckets are rotatably mounted at the bottom of the slotting machine body, and a lifting and rotating mechanism is mounted on the top of the grab bucket;

[0006] The lifting and rotating mechanism includes an outer tube, an inner tube is slidably installed inside the outer tube, a fixing ring is installed at the bottom of the outer tube, the upper end of the inner tube is rotatably sleeved with a connecting ring, the fixing ring and the connecting ring are elastically connected by a buffer spring, a rotating rod is rotatably installed on the top of the connecting ring, a pawl is installed on the top of the rotating rod, an array of bevel teeth that slide against the pawl are installed on the upper end of the inner tube, a fixing rod is installed inside the inner tube, and fan blades are installed in an array on the outer side of the fixing rod.

[0007] Furthermore, a hydraulic cylinder is installed inside the troughing machine body, and two transmission rods are rotatably installed at the bottom of the hydraulic cylinder. The bottom of the transmission rod is rotatably connected to an end of the grab bucket away from the hinge point with the troughing machine body.

[0008] Furthermore, an air inlet pipe is connected to the top of the outer tube, and the air inlet pipe is made of a telescopic hose. A mounting hole matching the size of the air inlet pipe is provided on the grooving machine body.

[0009] Furthermore, a fixing hole matching the size of the outer tube is provided at the top of the grab bucket, the inner side of the fixing ring is slidably connected to the outer side of the inner tube, and a plurality of spray holes are provided in an array at the lower end of the inner tube.

[0010] Furthermore, the lower end of the rotating rod is elastically connected to the top of the connecting ring through a spring clip, limiting blocks are installed at both ends of the connecting ring, and the inner wall of the outer tube is provided with a limiting groove slidably connected to the limiting block.

[0011] Furthermore, the end of the pawl away from the rotating rod is consistent with the rotation direction of the fan blade.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the air inlet pipe is connected to an external high-pressure air pump, and the inner tube is extended into the grab bucket by the thrust of the high-pressure gas. Fan blades, fixed rods, ratchets, rotating rods, connecting rings and spring clips are added to realize the positive rotation of the inner tube when it enters the grab bucket, and high-pressure gas is sprayed out through the spray hole to clean the residual material inside the grab bucket. Compared with using water, it can save water resources and reduce cleaning costs. Moreover, the grab bucket is in a closed state during the cleaning process, and will not splash onto the clothes of the staff and affect their subsequent work. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the grab bucket of the utility model;

[0015] Figure 3 It is a schematic diagram of the internal structure of the outer tube and the inner tube of the utility model.

[0016] In the figure:

[0017] 1. Grooving machine body; 2. Hydraulic cylinder; 3. Grab bucket; 4. Transmission rod; 5. Inlet pipe; 6. Outer pipe; 7. Inner pipe; 8. Fixed ring; 9. Buffer spring; 10. Connecting ring; 1001, Limit block; 11. Rotating rod; 12. Ratchet; 13. Bevel teeth; 14. Fixed rod; 15. Fan blades. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3The utility model provides the following technical solutions: a self-cleaning working device of a grooving machine, comprising a grooving machine body 1, two grab buckets 3 are rotatably installed at the bottom of the grooving machine body 1, a hydraulic cylinder 2 is installed inside the grooving machine body 1, two transmission rods 4 are rotatably installed at the bottom of the hydraulic cylinder 2, the bottom of the transmission rod 4 is rotatably connected to one end of the grab bucket 3 away from the hinge point with the grooving machine body 1, and the grabbing operation of the grab bucket 3 at the bottom of the grooving machine body 1 is realized through the coordinated use of the hydraulic cylinder 2 and the transmission rod 4.

[0020] A lifting and rotating mechanism is installed on the top of the grab bucket 3, and the lifting and rotating mechanism includes an outer tube 6, and an inner tube 7 is slidably installed inside the outer tube 6. The top of the outer tube 6 is connected to an air intake pipe 5, and the air intake pipe 5 is made of a telescopic hose. A mounting hole matching the size of the air intake pipe 5 is opened on the troughing machine body 1. The end of the air intake pipe 5 away from the outer tube 6 is connected to the output end of an external high-pressure air pump. The additional description of the special material of the air intake pipe 5 avoids being restricted by the air intake pipe 5 during the grabbing movement.

[0021] A fixing hole matching the size of the outer tube 6 is provided at the top of the grab 3. The inner side of the fixing ring 8 is slidably connected to the outer side of the inner tube 7. A plurality of spray holes are provided in an array at the lower end of the inner tube 7. The bottom of the fixing tube 8 is flush with the top of the inside of the grab 3. The bottom of the outer tube 6 is in a closed state. After the high-pressure gas enters the outer tube 6, it enters the inner tube through the top of the inner tube 7 and can only be sprayed out through the nozzle.

[0022] A fixing ring 8 is installed at the bottom of the outer tube 6, and a connecting ring 10 is rotatably sleeved on the upper end of the inner tube 7. Limiting blocks 1001 are installed at both ends of the connecting ring 10. A limiting groove slidably connected to the limiting block 1001 is opened on the inner wall of the outer tube 6. The limiting groove and the limiting block 1001 increase the limitation of the connecting ring 10 to prevent the connecting ring 10 from being affected by the inner tube 7 to rotate the knob buffer spring 9, which affects the service life of the buffer spring 9. The fixing ring 8 and the connecting ring 10 are elastically connected by the buffer spring 9. The inner tube 7 is limited by the fixing ring 8, the connecting ring 10 and the buffer spring 9. When not cleaned, the inner tube 7 is limited by the buffer spring 9 and automatically retracted into the outer tube 6. A rotating rod 11 is rotatably installed on the top of the connecting ring 10, and the lower end of the rotating rod 11 is elastically connected by the buffer spring 9. The spring clip is elastically connected to the top of the connecting ring 10, and a pawl 12 is installed on the top of the rotating rod 11. The pawl 12 is limited by the spring clip. The end of the pawl 12 away from the rotating rod 11 is consistent with the rotation direction of the fan blade 15. The upper end array of the inner tube 7 is installed with helical teeth 13 that slide against the pawl 12. When the fan blade 15 rotates under high-pressure resistance, the inner tube 7 is driven to rotate through the fixed rod 14, and the inner tube 7 drives the helical teeth 13 to rotate. The helical teeth 13 are slidingly connected with the pawl 12 at this time. When the inner tube 7 reverses, the pawl 12 is stuck in the tooth groove of the helical teeth 13 to fix the inner tube 7, thereby limiting the inner tube 7. A fixing rod 14 is installed inside the inner tube 7, and a fan blade 15 is installed in an array outside the fixing rod 14. The contact area with the high-pressure gas is increased through the fan blade 15.

[0023] Working principle: when the grab 3 needs to be cleaned, connect the end of the air inlet pipe 5 away from the outer tube 6 to the output end of the external high-pressure air pump, and start the hydraulic cylinder 2 to make the two grabs 3 fit together, start the external high-pressure air pump, and the high-pressure gas enters the outer tube 6 through the air inlet pipe 5. The inner tube 7 is subjected to pressure to squeeze the buffer spring 9 through the connecting ring 10, and moves downward to extend into the grab 3. The fan blades 15 rotate under the thrust of the high-pressure gas and are limited by the spring clip, ratchet 12 and bevel teeth 13. The fan blades 15 drive the inner tube 7 to rotate forward through the rotating rod 11. At this time, the high-pressure gas rotates and sprays out from the spray hole through the inner tube 7. The inside of the grab 3 is blown and cleaned by the sprayed high-pressure gas, so that the residual materials inside the grab 3 are cleaned and dropped.

[0024] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0025] Finally: 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, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A self-cleaning working device for a slotting machine, comprising a slotting machine body (1), characterized in that: Two grab buckets (3) are rotatably mounted at the bottom of the troughing machine body (1), and a lifting and rotating mechanism is mounted on the top of the grab buckets (3); The lifting and rotating mechanism comprises an outer tube (6), an inner tube (7) is slidably mounted inside the outer tube (6), a fixing ring (8) is mounted at the bottom inside the outer tube (6), a connecting ring (10) is rotatably sleeved on the upper end of the inner tube (7), the fixing ring (8) and the connecting ring (10) are elastically connected via a buffer spring (9), a rotating rod (11) is rotatably mounted on the top of the connecting ring (10), a ratchet (12) is mounted on the top of the rotating rod (11), an array of oblique teeth (13) that slidably contact the ratchet (12) are mounted on the upper end of the inner tube (7), a fixing rod (14) is mounted inside the inner tube (7), and fan blades (15) are mounted in an array on the outer side of the fixing rod (14).

2. A self-cleaning working device for a slotting machine according to claim 1, characterized in that: A hydraulic cylinder (2) is installed inside the troughing machine body (1), and two transmission rods (4) are rotatably installed at the bottom of the hydraulic cylinder (2). The bottom of the transmission rod (4) is rotatably connected to an end of the grab bucket (3) away from the hinge point with the troughing machine body (1).

3. A self-cleaning working device for a slotting machine according to claim 1, characterized in that: The top of the outer tube (6) is connected to an air inlet pipe (5), the air inlet pipe (5) is made of a telescopic hose, and a mounting hole matching the size of the air inlet pipe (5) is provided on the grooving machine body (1).

4. A self-cleaning working device for a slotting machine according to claim 1, characterized in that: The top of the grab bucket (3) is provided with a fixing hole that matches the size of the outer tube (6), the inner side of the fixing ring (8) is slidably connected to the outer side of the inner tube (7), and the lower end of the inner tube (7) is provided with a plurality of spray holes in an array.

5. A self-cleaning working device for a slotting machine according to claim 1, characterized in that: The lower end of the rotating rod (11) is elastically connected to the top of the connecting ring (10) via a spring clip, and limit blocks (1001) are installed at both ends of the connecting ring (10). The inner wall of the outer tube (6) is provided with a limit groove slidably connected to the limit block (1001).

6. A self-cleaning working device for a slotting machine according to claim 1, characterized in that: The end of the ratchet (12) away from the rotating rod (11) rotates in the same direction as the fan blade (15).

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