Dredging device for removing blocking body of karst tunnel drainage pipe

Abstract

The utility model relates to a dredging device for removing a blocking body of a karst tunnel drainage pipe, and aims to solve the technical problem that in the prior art, the cleaning effect of a scraper blade on calcified crystals on the inner wall of the drainage pipe is poor, the dredging device comprises a dredging machine crushing end, and a transmission shaft is arranged in the dredging machine crushing end; the tail end of the transmission shaft is fixedly connected with a conical spiral crushing end, the outer surface of the transmission shaft is fixedly connected with a connecting bin, and the interior of the connecting bin is connected with a connecting block through a spring; according to the utility model, the spiral crushing end and the spiral drilling edge on the outer surface of the spiral crushing end are used for drilling and crushing the blocked part with large calcification crystal quantity of the drainage pipe, and then the spiral cutting edge on the outer surface of the surface cutting head is used for crushing calcification crystals attached to the inner wall of the drainage pipe; and then the calcified crystals are further crushed and cleaned transversely through the block crushing head, and meanwhile, the cleaning effect of the calcified crystals in the drainage pipe is improved under the action of the sprayed acid-base solution.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel drainage pipe dredging, in particular to a dredging device for clearing a blockage in a karst tunnel drainage pipe. Background Art

[0002] During the construction and operation of the tunnel, it was found that the drainage holes of the tunnels in the karst area were generally blocked by calcified crystals. When the drainage holes were blocked, the groundwater in the tunnel could not be discharged, the water pressure on the back of the lining increased, and the groundwater was forced to seep or spray out along the weak points of the tunnel structure under the action of water pressure, causing local water leakage in the tunnel, which had a serious impact on the tunnel structure and operational safety.

[0003] For example, the dredging device for clearing blockages in karst tunnel drainage pipes proposed in announcement number CN217352836U cleans the calcified crystals by contacting the scraper with the inner wall of the drainage pipe. Since the calcified crystals have a certain hardness, the scraper may fail to break the crystals when contacting the scraper, which will cause the edge of the rotating scraper to warp after contacting the calcified crystals, and the calcified crystals on the inner wall of the drainage pipe cannot be completely removed. In view of this, we propose a dredging device for clearing blockages in karst tunnel drainage pipes. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, meet the actual needs, and provide a dredging device for clearing blockages in karst tunnel drainage pipes, so as to solve the technical problem that the scraper in the current prior art has a poor cleaning effect on the calcified crystals on the inner wall of the drainage pipe.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is as follows: a dredging device for clearing blockages in karst tunnel drainage pipes is designed, including a dredging machine crushing end, a transmission shaft driven by a motor to rotate is arranged inside the dredging machine crushing end, a conical spiral crushing end is fixedly connected to the end of the transmission shaft, a connecting bin is fixedly connected to the outer surface of the transmission shaft, a connecting block is connected to the inside of the connecting bin through a spring, and a block crushing head and a surface cutting head are fixedly connected to the two ends of the outer surface of the connecting block respectively; a plurality of cutter heads are evenly arranged on the outer side of the front surface of the block crushing head, and the cutter heads A serrated blade is provided on one side of the surface cutting head, a spiral cutting blade is provided on the outer surface of the surface cutting head, a spiral drill blade is provided on the front surface of the spiral crushing end, and the diameter of the block crushing head is the same as the diameter of the spiral cutting blade on the outer surface of the surface cutting head. The utility model drills and crushes the places where the calcification crystals in the drainage pipe are blocked by a large amount of calcification crystals through the spiral crushing end and the spiral drill blade on its outer surface, and then crushes the calcification crystals attached to the inner wall of the drainage pipe through the spiral cutting blade on the outer surface of the surface cutting head, and then further crushes and cleans the calcification crystals horizontally through the block crushing head, thereby improving the cleaning efficiency of the calcification crystals in the drainage pipe.

[0006] Preferably, a nozzle is evenly and fixedly connected to the outer surface of the crushing end of the unblocking machine, a nozzle is fixedly connected to the upper surface of one end of the nozzle, a conveying channel for conveying acid and alkali solution is opened on the inner wall of the crushing end of the unblocking machine, the nozzle is connected with the conveying channel through a liquid inlet, a reciprocating rod is provided at one end of the liquid inlet, a push plate is fixedly connected to the upper end of the reciprocating rod, a return spring is fixedly connected to the lower surface of the push plate, a retaining ring is fixedly connected to the inner wall of one end of the nozzle, and a shifting block located directly below the reciprocating rod is provided on the outer surface of the transmission shaft; the utility model conveys the acid and alkali solution to the inside of the nozzle through the inner wall of the crushing end of the unblocking machine, and in the repeated contact between the shifting block on the outer surface of the transmission shaft and the reciprocating rod, the acid and alkali solution is sucked into the inside of the nozzle through the reciprocating rod and sprayed out by the nozzle, so as to process the small calcification crystals that are not easy to crush, thereby improving the cleaning effect of the blockage in the drainage pipe of the karst tunnel.

[0007] Preferably, a through hole connecting the inside of the nozzle and the liquid inlet is opened inside the reciprocating rod, and the lower end of the reciprocating rod is semicircular; the reciprocating rod with a semicircular lower end facilitates the intermittent pushing of the reciprocating rod by the shift block during the rotation of the transmission shaft, so that the acid and alkali solution is sprayed out from the nozzle to treat the fine calcification crystals.

[0008] Preferably, the nozzle is made of rubber, and one end of the nozzle is provided with a conical and dense jet opening with a large opening facing inward, and the reciprocating rod and the nozzle are sealed by a sealing gasket; the nozzle is made of rubber, and the dense jet opening with a conical shape inside and a large opening facing inward can close the jet opening when the reciprocating rod moves downward, so that a negative pressure is generated inside the nozzle to control the continuous suction of the acid and alkali solution, increase the coverage area of ​​the acid and alkali solution sprayed from the nozzle, and improve the dissolution effect of the calcification crystals.

[0009] Preferably, the end of the serrated blade extends to the outside of the cutter head; the serrations of the serrated blade enhance the lateral crushing effect on the calcified crystals.

[0010] Preferably, a rotating cutting head is gathered on the spiral drill blade on the front surface of the conical spiral crushing end near the narrow end of the spiral crushing end; the cutting head facilitates cleaning of calcification crystals in severely blocked areas inside the drainage pipe.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model uses the spiral crushing end and the spiral drill blade on its outer surface to drill and crush the places where the calcification crystals in the drainage pipe are blocked by a large amount of calcification crystals, and then uses the spiral cutting blade on the outer surface of the surface cutting head to first crush the calcification crystals attached to the inner wall of the drainage pipe, and then uses the block crushing head to further crush and clean the calcification crystals horizontally, thereby improving the cleaning efficiency of the calcification crystals in the drainage pipe.

[0013] 2. The utility model transports the acid-base solution to the inside of the nozzle through the inner wall of the crushing end of the dredging machine. During the repeated contact between the shifting block on the outer surface of the transmission shaft and the reciprocating rod, the acid-base solution is sucked into the inside of the nozzle through the reciprocating rod and sprayed out from the nozzle, thereby processing the small calcification crystals that are difficult to crush, thereby improving the cleaning effect of the blockage in the karst tunnel drainage pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the crushing end of the dredging machine of the utility model;

[0015] Figure 2 This is a schematic diagram of the spiral crushing end structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the shifting block of the utility model;

[0017] Figure 4 This is a schematic diagram of the side cross-sectional structure of the nozzle of the utility model;

[0018] Figure 5 This is a schematic diagram of the cutter head structure of the utility model;

[0019] Figure 6 For the utility model Figure 1 -Schematic diagram of the structure at A;

[0020] Figure 7 For the utility model Figure 2 -Schematic diagram of the structure at B;

[0021] Figure 8 This is a schematic diagram of the side sectional structure of the nozzle of the utility model;

[0022] In the figure: 1. crushing end of the dredging machine; 2. transmission shaft; 201. shifting block; 3. block crushing head; 301. cutter head; 4. surface cutting head; 5. spiral crushing end; 6. serrated blade; 7. connecting block; 8. connecting bin; 9. nozzle; 901. nozzle; 902. reciprocating rod; 903. push plate; 904. return spring; 905. retaining ring; 906. liquid inlet. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0024] Embodiment: A dredging device for clearing a blockage in a karst tunnel drainage pipe, see Figures 1 to 8 The utility model comprises a crushing end 1 of the dredging machine, wherein a transmission shaft 2 driven to rotate by a motor is arranged inside the crushing end 1, a conical spiral crushing end 5 is fixedly connected to the end of the transmission shaft 2, a connecting bin 8 is fixedly connected to the outer surface of the transmission shaft 2, a connecting block 7 is connected to the inner surface of the connecting bin 8 through a spring, and a block crushing head 3 and a surface cutting head 4 are fixedly connected to the two ends of the outer surface of the connecting block 7 respectively; a plurality of cutter heads 301 are evenly arranged on the outer side of the front surface of the block crushing head 3, a sawtooth blade 6 is arranged on one side of the cutter head 301, and a spiral cutter head 4 is arranged on the outer surface of the surface cutting head 4. The spiral cutting blade and the front surface of the spiral crushing end 5 are provided with a spiral drill blade, and the diameter of the block crushing head 3 is the same as the diameter of the spiral cutting blade on the outer surface of the surface cutting head 4. The utility model uses the spiral crushing end 5 and the spiral drill blade on its outer surface to drill and crush the places where the drainage pipe is blocked by a large amount of calcified crystals, and then uses the spiral cutting blade on the outer surface of the surface cutting head 4 to first crush the calcified crystals attached to the inner wall of the drainage pipe, and then uses the block crushing head 3 to further crush and clean the calcified crystals horizontally, thereby improving the cleaning efficiency of the calcified crystals in the drainage pipe.

[0025] Specifically, the outer surface of the crushing end 1 of the dredging machine is evenly fixedly connected with a nozzle 9, the upper surface of one end of the nozzle 9 is fixedly connected with a nozzle 901, the nozzle 901 is a one-way nozzle, the inner wall of the crushing end 1 of the dredging machine is provided with a conveying channel for conveying acid and alkali solution, the nozzle 9 is connected with the conveying channel through a liquid inlet 906, a reciprocating rod 902 is provided at one end of the liquid inlet 906, the upper end of the reciprocating rod 902 is fixedly connected with a push plate 903, the lower surface of the push plate 903 is fixedly connected with a reset spring 904, and the inner wall of one end of the nozzle 9 is fixedly connected with a push plate 903. A retaining ring 905 is fixedly connected, and a shifting block 201 located directly below the reciprocating rod 902 is arranged on the outer surface of the transmission shaft 2. The utility model transports the acid-base solution to the inside of the nozzle 9 through the inner wall of the crushing end 1 of the dredging machine. During the repeated contact between the shifting block 201 on the outer surface of the transmission shaft 2 and the reciprocating rod 902, the acid-base solution is sucked into the inside of the nozzle 9 through the reciprocating rod 902 and sprayed out by the nozzle 901, thereby processing the small calcified crystals that are not easy to break, thereby improving the cleaning effect of the blockage in the karst tunnel drainage pipe.

[0026] Furthermore, a through hole connecting the interior of the nozzle 9 and the liquid inlet 906 is opened inside the reciprocating rod 902, and the lower end of the reciprocating rod 902 is semicircular; the reciprocating rod 902 with a semicircular lower end is convenient for intermittently pushing the reciprocating rod 902 through the shift block 201 during the rotation of the transmission shaft 2, so that the acid and alkali solution is sprayed out from the nozzle 901 to treat the fine calcification crystals.

[0027] Furthermore, the nozzle 902 is made of rubber, and one end of the nozzle 901 is provided with a conical and dense jet opening with a large opening facing inward, and the reciprocating rod 902 and the nozzle 9 are sealed by a sealing gasket; the nozzle 901 is made of rubber, and the dense jet opening with a conical shape inside and a large opening facing inward can close the jet opening when the reciprocating rod 902 moves downward, so that a negative pressure is generated inside the nozzle 9 to control the continuous suction of the acid and alkali solution, increase the coverage area of ​​the acid and alkali solution sprayed by the nozzle 901, and improve the dissolution effect of the calcification crystals.

[0028] It is worth noting that the end of the serrated blade 6 extends to the outside of the blade head 301; the serrations of the serrated blade 6 enhance the lateral crushing effect on the calcified crystals.

[0029] It is worth noting that the spiral drill blade on the front surface of the conical spiral crushing end 5 is gathered with a rotating cutting head near the narrow end of the spiral crushing end 5; the cutting head is convenient for cleaning the calcification crystals in the seriously blocked parts inside the drainage pipe.

[0030] Working principle: When cleaning the calcified crystals inside the drain pipe, the scraper in the prior art is replaced by the block crushing head 3, the surface cutting head 4 and the spiral crushing end 5. The spiral crushing end 5 and the spiral drill blade on its outer surface are used to drill and crush the places where the calcified crystals in the drain pipe are blocked by a large amount of calcified crystals. Then, the spiral cutting blade on the outer surface of the surface cutting head 4 is used to crush the calcified crystals attached to the inner wall of the drain pipe. Then, the block crushing head 3 is used to further crush and clean the calcified crystals horizontally, thereby improving the cleaning efficiency of the calcified crystals in the drain pipe. While cleaning the crystals, the transmission shaft 2 rotates The control dial block 201 is in contact with the lower end of the reciprocating rod 902, and the reciprocating motion of the reciprocating rod 902 and the push plate 903 are controlled under the action of the reset spring 904. In this process, the injection port on the outer surface of the nozzle 901 opens during the advancement of the reciprocating rod 902, and closes when it moves downward, so that negative pressure is generated inside the nozzle 9, and further the acid and alkali solution is absorbed into the interior of the nozzle 9 along the liquid inlet 906 from the inner wall of the crushing end 1 of the dredging machine and squeezed out from the nozzle 901, so as to process the small calcified crystals that are not easy to break, thereby further improving the cleaning effect of the blockage in the karst tunnel drainage pipe.

[0031] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A dredging device for clearing blockages in karst tunnel drainage pipes, comprising a dredging machine crushing end (1), characterized in that: The crushing end (1) of the dredging machine is provided with a transmission shaft (2) driven to rotate by a motor, the end of the transmission shaft (2) is fixedly connected to a conical spiral crushing end (5), the outer surface of the transmission shaft (2) is fixedly connected to a connecting bin (8), the interior of the connecting bin (8) is connected to a connecting block (7) via a spring, and the two ends of the outer surface of the connecting block (7) are respectively fixedly connected to a block crushing head (3) and a surface cutting head (4); A plurality of cutter heads (301) are evenly arranged on the outer side of the front surface of the block crushing head (3), a sawtooth blade (6) is arranged on one side of the cutter head (301), a spiral cutting blade is arranged on the outer surface of the surface cutting head (4), a spiral drill blade is arranged on the front surface of the spiral crushing end (5), and the diameter of the block crushing head (3) is the same as the diameter of the spiral cutting blade on the outer surface of the surface cutting head (4).

2. The dredging device for clearing blockages in karst tunnel drainage pipes according to claim 1, characterized in that: The outer surface of the crushing end (1) of the unblocking machine is evenly and fixedly connected with a nozzle (9), the upper surface of one end of the nozzle (9) is fixedly connected with a nozzle (901), the inner wall of the crushing end (1) of the unblocking machine is provided with a conveying channel for conveying acid and alkali solution, the nozzle (9) is connected with the conveying channel through a liquid inlet (906), one end of the liquid inlet (906) is provided with a reciprocating rod (902), the upper end of the reciprocating rod (902) is fixedly connected with a push plate (903), the lower surface of the push plate (903) is fixedly connected with a return spring (904), the inner wall of one end of the nozzle (9) is fixedly connected with a retaining ring (905), and the outer surface of the transmission shaft (2) is provided with a shifting block (201) located directly below the reciprocating rod (902).

3. The dredging device for clearing blockages in karst tunnel drainage pipes according to claim 2, characterized in that: A through hole connecting the inside of the nozzle (9) and the liquid inlet (906) is provided inside the reciprocating rod (902), and the lower end of the reciprocating rod (902) is semicircular.

4. The dredging device for clearing blockages in karst tunnel drainage pipes according to claim 2, characterized in that: The nozzle (901) is made of rubber, and one end of the nozzle (901) is provided with a conical and dense injection port with a large opening facing inwards. The reciprocating rod (902) and the nozzle (9) are sealed by a sealing gasket.

5. The dredging device for clearing blockages in karst tunnel drainage pipes according to claim 1, characterized in that: The distal end of the serrated blade (6) extends to the outside of the cutter head (301).

6. The dredging device for clearing blockages in karst tunnel drainage pipes according to claim 1, characterized in that: The spiral drill blade on the front surface of the conical spiral crushing end (5) is gathered with a rotating cutting head near the narrow end of the spiral crushing end (5).

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