Rotary excavating device for building construction

Abstract

The utility model discloses a rotary excavating device for building construction, which relates to the technical field of construction rotary excavating equipment and comprises a support frame, a rotating rod, an upper drilling cylinder and a lower drilling cylinder, the rotating rod is rotatably mounted on one side of the support frame, the upper drilling cylinder is mounted at the bottom end of the rotating rod, a first connecting plate is fixedly connected to the inner lower position of the upper drilling cylinder, and a second connecting plate is fixedly connected to the lower position of the upper drilling cylinder. The water conveying annular plate and the connector are matched with the upper drilling barrel and the lower drilling barrel, so that adhered soil can be conveniently flushed down, the upper drilling barrel and the lower drilling barrel do not need to be controlled back and forth to hit the ground to shake, large noise is avoided, meanwhile, the damage probability of the upper drilling barrel and the lower drilling barrel is reduced, overall replacement is not needed, and the use cost is conveniently reduced; the problems that in traditional building construction soil rotary excavating, after a drill bit is pasted by soil, the drill bit shakes to force the soil to fall off, the drill bit is prone to being damaged, meanwhile, the ground smashing noise is large, the whole drill bit needs to be replaced after being damaged, and the cost is high in the mode that the drill bit is used for smashing the ground are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction rotary drilling equipment, in particular to a rotary drilling device for building construction. Background Art

[0002] A rotary drilling rig is a construction machine used for drilling holes in construction projects. It is mainly suitable for construction in soil layers such as sand, clay, and silt. Since the rotary drill bit can directly extract rock and soil from the hole to the ground, it can speed up the construction process and shorten the project period.

[0003] During the existing rotary excavation of soil in construction, it is usually necessary to pour a specific mud liquid into the excavated hole. At the same time, during the rotary excavation, the soil will be stored inside the drill bit, which can easily cause the drill bit to be covered with soil. The drill bit is usually hit on the ground to make the drill bit shake and force the soil to fall off, which can easily damage the drill bit. At the same time, the noise is relatively large, and the lower part of the drill bit is often in contact with the soil, resulting in high wear and tear and easy damage. Since the rotary drilling drill bit is cast in one piece, it needs to be replaced as a whole after damage, which is costly. Utility Model Content

[0004] The main purpose of the utility model is to provide a rotary drilling device for construction, which can effectively solve the problem that the drill bit is used to hit the ground in the background technology, causing the drill bit to shake and force the soil to fall, and the drill bit is easily damaged in the process. After damage, it needs to be replaced as a whole, which is costly.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A rotary drilling device for construction, comprising a support frame, a rotating rod, an upper drill tube and a lower drill tube, wherein the rotating rod is rotatably mounted on one side of the support frame, and the upper drill tube is mounted on the bottom end of the rotating rod;

[0007] A connecting plate 1 is fixedly connected to the lower position of the interior of the upper drill tube, and a connecting plate 2 adaptively matched with the connecting plate 1 is fixedly connected to the upper position of the interior of the lower drill tube. A combined bolt rod is slidably installed through the upper and lower ends of the connecting plate 1 and the connecting plate 2. The outer ring of the combined bolt rod is threadedly connected with locking nuts at the upper and lower ends, and the upper and lower opposite surfaces of the locking nuts are respectively fitted with the ends of the connecting plate 1 and the connecting plate 2 that are away from each other. A rotating plate is movably installed at the lower position of the interior of the lower drill tube, and the bottom end of the rotating plate is fixedly connected with cutting teeth. A water delivery ring plate is installed at the upper position of the interior of the upper drill tube through fixing bolts.

[0008] As a further solution of the utility model, a soil inlet is opened at one side of the upper and lower ends of the rotating plate, and a soil inlet baffle matching the soil inlet is movably installed inside the lower drill tube through a torsion spring shaft.

[0009] As a further solution of the utility model, a connector is connected to the top of the water delivery ring plate, one end of the connector away from the water delivery ring plate passes through the top of the upper drill tube, and one end of the connector extending out of the upper drill tube is connected to a joint.

[0010] As a further solution of the utility model, the sizes of the upper drill barrel and the lower drill barrel match each other, and the lower drill barrel is detachably connected to the upper drill barrel through a combined bolt rod.

[0011] As a further solution of the utility model, a plurality of water spray pipes are arranged at the bottom end of the water delivery ring plate, and the angles of the water spray pipes are adaptively matched with the inner walls of the upper drill tube and the lower drill tube.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model provides a water delivery ring plate and a connector to cooperate with the upper drill tube and the lower drill tube. When mud is adhered to the inside of the upper drill tube and the lower drill tube, the high-pressure water flow can be delivered to the water delivery ring plate and sprayed out by connecting the external high-pressure water pipe to the connector, so as to facilitate flushing down the mud adhered to the upper drill tube and the lower drill tube. In addition, during the cleaning process, it is not necessary to control the upper drill tube and the lower drill tube to hit the ground and shake them back and forth, so as to avoid generating large noise and reduce the probability of damage to the upper drill tube and the lower drill tube.

[0014] The upper drill tube and the lower drill tube are combined together by a combination bolt rod and are not cast in one piece. Therefore, when the lower drill tube is worn and damaged by the ground, the lower drill tube can be removed separately for replacement without replacing the entire drill tube, thereby reducing the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a rotary drilling device for construction of the utility model;

[0016] Figure 2 This is a cross-sectional view of the internal structure of the upper drill tube and the lower drill tube in the overall structure of a rotary drilling device for construction of the utility model;

[0017] Figure 3 The utility model is a schematic diagram of the connection between the upper drill tube and the lower drill tube in a rotary drilling device for construction.

[0018] In the figure: 1. support frame; 2. rotating rod; 3. upper drill tube; 4. lower drill tube; 5. combined bolt rod; 6. cutting teeth; 7. soil inlet baffle; 8. water delivery ring plate; 9. connecting head. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1-3 As shown, a rotary drilling device for construction includes a support frame 1, a rotating rod 2, an upper drill tube 3, and a lower drill tube 4. The rotating rod 2 is rotatably mounted on one side of the support frame 1, and the upper drill tube 3 is mounted on the bottom end of the rotating rod 2;

[0021] A connecting plate 1 is fixedly connected to the lower position of the interior of the upper drill tube 3, and a connecting plate 2 adaptively matched with the connecting plate 1 is fixedly connected to the upper position of the interior of the lower drill tube 4. A combined bolt rod 5 is slidably installed through the upper and lower ends of the connecting plate 1 and the connecting plate 2. The outer ring of the combined bolt rod 5 is threadedly connected with locking nuts at the upper and lower ends, and the upper and lower opposite surfaces of the locking nuts are respectively fitted with the ends of the connecting plate 1 and the connecting plate 2 that are away from each other. A rotating plate is movably installed at the lower position of the interior of the lower drill tube 4, and the bottom end of the rotating plate is fixedly connected with cutting teeth 6. A water delivery ring plate 8 is installed at the upper position of the interior of the upper drill tube 3 through fixing bolts.

[0022] In this embodiment, a soil inlet is opened at one side of the upper and lower ends of the rotating plate, and a soil inlet baffle 7 matching the soil inlet is movably installed inside the lower drill tube 4 through a torsion spring shaft. The soil inlet is set to facilitate the drilled soil to enter the lower drill tube 4, and the soil inlet baffle 7 can block the incoming soil to prevent it from falling out.

[0023] In this embodiment, a connector 9 is connected to the top of the water delivery ring plate 8, and one end of the connector 9 away from the water delivery ring plate 8 passes through the top of the upper drill tube 3, and the end of the connector 9 extending out of the upper drill tube 3 is connected to a joint. By connecting the external high-pressure flushing water pipe to the connector 9 and turning on the external water pump, the cleaning water flow can be easily transported to the inside of the water delivery ring plate 8 for spraying, so as to facilitate flushing.

[0024] In this embodiment, the sizes of the upper drill barrel 3 and the lower drill barrel 4 match each other, and the lower drill barrel 4 is detachably connected to the upper drill barrel 3 through the combined bolt rod 5. Since the upper drill barrel 3 and the lower drill barrel 4 are combined and fixed by the combined bolt rod 5, after damage, the locking nut on the combined bolt rod 5 can be unscrewed and the lower drill barrel 4 can be replaced separately without replacing the entire drill barrel, which is convenient for reducing the use cost.

[0025] In this embodiment, a plurality of water spray pipes are provided at the bottom end of the water delivery ring plate 8, and the angles of the water spray pipes are adaptively matched with the inner walls of the upper drill barrel 3 and the lower drill barrel 4. Through the provided water spray pipes, water can be sprayed out to flush the inner walls of the upper drill barrel 3 and the lower drill barrel 4.

[0026] It should be noted that the utility model is a rotary drilling device for construction. When in use, the upper drill tube 3 can be moved to the location to be rotary drilled as needed, and then the upper drill tube 3 and the lower drill tube 4 can be controlled to rotate to dig the soil through the existing technology, and the soil can be discharged and the mud can be poured as needed;

[0027] When there is a lot of soil adhering to the upper drill tube 3 and the lower drill tube 4, since a water delivery ring plate 8 is installed in the upper drill tube 3 and a connector 9 is provided at the top of the water delivery ring plate 8, the external high-pressure flushing water pipe can be connected to the connector 9 as needed, and the external water pump can be turned on to deliver the cleaning water flow to the inside of the water delivery ring plate 8 for spraying, so as to flush and remove the blockage in the upper drill tube 3 and the lower drill tube 4, and facilitate the flushing of the adhering soil;

[0028] In the process of continuous flushing by water flow, it is not necessary to hit the upper drill tube 3 and the lower drill tube 4 back and forth to the ground for shaking, so as to avoid generating large noise. At the same time, the probability of the upper drill tube 3 and the lower drill tube 4 being damaged can be reduced, so as to increase the service life;

[0029] At the same time, the upper drill tube 3 and the lower drill tube 4 are combined and fixed by the combined bolt rod 5, and are not arranged in an integrated manner. Therefore, after the lower drill tube 4 is damaged by long-term friction with the soil, the locking nut on the combined bolt rod 5 can be unscrewed and the lower drill tube 4 can be replaced separately without replacing the entire drill tube, which is convenient for reducing the use cost.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A rotary drilling device for construction, characterized in that: It comprises a support frame (1), a rotating rod (2), an upper drill tube (3), and a lower drill tube (4), wherein the rotating rod (2) is rotatably mounted on one side of the support frame (1), and the upper drill tube (3) is mounted on the bottom end of the rotating rod (2); A connecting plate 1 is fixedly connected to the lower position of the interior of the upper drill tube (3), and a connecting plate 2 that is adaptively matched with the connecting plate 1 is fixedly connected to the upper position of the interior of the lower drill tube (4). A combination bolt rod (5) is slidably installed through the upper and lower ends of the connecting plate 1 and the connecting plate 2. The upper and lower ends of the outer ring of the combination bolt rod (5) are both threadedly connected with locking nuts, and the upper and lower opposite surfaces of the locking nuts are respectively in contact with the ends of the connecting plate 1 and the connecting plate 2 that are away from each other. A rotating plate is movably installed at the lower position of the interior of the lower drill tube (4), and the bottom end of the rotating plate is fixedly connected to the cutting teeth (6). A water delivery ring plate (8) is installed at the upper position of the interior of the upper drill tube (3) via fixing bolts.

2. A rotary drilling device for construction according to claim 1, characterized in that: A soil inlet is provided at one side of the upper and lower ends of the rotating plate, and a soil inlet baffle (7) matching the soil inlet is movably installed inside the lower drill tube (4) via a torsion spring shaft.

3. A rotary drilling device for construction according to claim 1, characterized in that: The top end of the water delivery ring plate (8) is connected to a connector (9), one end of the connector (9) away from the water delivery ring plate (8) penetrates the top end of the upper drill tube (3), and one end of the connector (9) extending out of the upper drill tube (3) is connected to a joint.

4. A rotary drilling device for construction according to claim 1, characterized in that: The sizes of the upper drill tube (3) and the lower drill tube (4) match each other, and the lower drill tube (4) is detachably connected to the upper drill tube (3) via a combined bolt rod (5).

5. A rotary drilling device for construction according to claim 3, characterized in that: A plurality of water spray pipes are arranged at the bottom end of the water delivery ring plate (8), and the angles of the water spray pipes are adaptively matched with the inner walls of the upper drill tube (3) and the lower drill tube (4).

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