A device for removing water accumulated in a blast hole in a low temperature environment and a method of operating the same

Abstract

This invention relates to the field of borehole wall protection devices, specifically a device and operating method for draining water from blast holes and protecting the borehole wall in low-temperature environments. A splice plate is fixedly fitted onto the outer wall of a support pipe. A cover plate is fitted onto the top of the support pipe, and a limiting sleeve is fixed to the top surface of the cover plate. A suction pipe is inserted into the limiting sleeve, and the top of the suction pipe is connected to the suction pipe of a water pump. A threaded groove is formed at the top of the cover plate, and multiple clamping blocks are inserted into the surface of the threaded groove. A threaded ring is threaded into the inside of the threaded groove. The beneficial effect is that the position of the suction pipe can be adjusted and braked by rotating the threaded ring upwards or downwards. When the threaded ring is rotated upwards, the inclined end of the clamping block extends into the threaded groove, allowing the suction pipe to be inserted into the limiting sleeve and adjusted to the desired position. When the threaded ring is screwed downwards, the threaded ring pushes the clamping block to clamp the suction pipe, while a rubber clamping ring increases friction between the clamping block and the suction pipe, thus reliably braking the suction pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of hole wall protection devices, and particularly to a device for removing accumulated water in blasting holes and protecting the hole wall and an operation method under low-temperature environments. Background Art

[0002] In blasting operations under low-temperature environments, a large amount of water often accumulates in blasting holes. If this accumulated water is not removed in time, it will not only affect the blasting effect, reduce the explosion power of explosives, resulting in insufficient blasting, but may also pose a serious threat to subsequent construction safety. At the same time, after the blasting hole is excavated, its hole wall is easily affected by the pressure of the surrounding soil or rock and the erosion of groundwater, resulting in collapse or deformation, thereby affecting the progress and quality of the entire blasting project.

[0003] Currently, for the problems of removing accumulated water in blasting holes and protecting the hole wall, although there are some conventional methods and devices, in low-temperature environments, these methods and devices often have many limitations. For example, some accumulated water removal devices are prone to icing at low temperatures, resulting in abnormal operation; while the installation and fixation of some hole wall protection devices are not firm enough and are prone to loosening or failure in low-temperature environments, and cannot effectively protect the hole wall.

[0004] Therefore, there is an urgent need for a device that can effectively remove accumulated water in blasting holes and protect the hole wall in low-temperature environments. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for removing accumulated water in blasting holes and protecting the hole wall and an operation method under low-temperature environments to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A device for removing accumulated water in blasting holes and protecting the hole wall under low-temperature environments includes a support pipe. A lapping plate is fixedly sleeved on the outer wall of the support pipe. A cover plate is sleeved on the top end of the support pipe. A limit sleeve is fixedly provided on the top surface of the cover plate. A liquid extraction pipe is inserted into the limit sleeve. The top end of the liquid extraction pipe is connected to the water extraction pipe of a water extraction pump. A screwing groove is provided at the top end of the cover plate. A plurality of clamping blocks are inserted on the surface of the screwing groove. A screwing ring is sleeved and screwed inside the screwing groove. The screwing ring pushes the clamping blocks to clamp the liquid extraction pipe.

[0007] Preferably, a plurality of reserved holes are provided on the surface of the lapping plate. A plurality of wire sleeves are fixedly provided on the top surface of the lapping plate. The wire sleeves and the reserved holes correspond to each other. A screw rod is screwed inside the wire sleeve. A drill bit is fixedly provided at the bottom end of the screw rod. The bottom ends of the screw rod and the drill bit both penetrate through the reserved holes.

[0008] Preferably, a clamping groove is provided on the outer ring surface at the top end of the support pipe. The clamping groove is an annular groove. A rubber sleeve is fixedly provided at the top end of the support pipe. The rubber sleeve is a ring plate structure with a "C" - shaped cross-section. The outer ring plate of the rubber sleeve covers the clamping groove.

[0009] Preferably, a plurality of hand-tightening screws are screwed onto the side plate of the cover plate. The hand-tightening screws penetrate the side plate of the cover plate and are inserted into the slots, and a portion of the rubber sleeve is clamped in the slots by the hand-tightening screws.

[0010] Preferably, the top surface of the cover plate has an insertion port, the inner ring of the limiting sleeve corresponds to the insertion port, and a rubber clamping ring is fixed on the inner ring surface of the limiting sleeve. The rubber clamping ring is held between the limiting sleeve and the liquid extraction tube and undergoes elastic deformation.

[0011] Preferably, the inner ring surface of the screw groove is provided with multiple insertion holes, and the clamping block and the insertion hole correspond one-to-one. The clamping block is inserted into the insertion hole, one end of the clamping block is fixed to the outer ring surface of the rubber clamping ring, and the other end of the clamping block is provided with an inclined surface on the top surface.

[0012] Preferably, the inner ring surface of the screw ring is provided with an internal thread, which engages with the outer ring surface of the screw groove. The outer ring surface of the screw ring is provided with multiple anti-slip grooves, and a rubber pad is fixed on the bottom surface of the screw groove. The rubber pad is held between the bottom surface of the screw ring and the screw groove and undergoes elastic deformation.

[0013] Preferably, a limiting ring is fitted onto the top end of the liquid extraction tube.

[0014] Preferably, the bottom end of the liquid extraction tube has an internal thread on the inner ring surface, the bottom end of the liquid extraction tube is inserted into and screwed into a screw connector, the screw connector has an external thread on the outer ring surface at the top end, the screw connector is a "convex" shaped round block, the bottom surface of the screw connector has a bottom groove, the top surface of the bottom groove has a through hole, and a permeable plate is fixed inside the bottom groove.

[0015] A method for operating a device for draining water from blast holes and protecting the hole wall in low-temperature environments includes the following steps:

[0016] Insert the bottom end of the support pipe into the blast hole. At this time, the overlapping plate overlaps the ground. Then, insert the suction pipe into the limiting sleeve and rotate the limiting sleeve downward to push the clamping block to clamp the suction pipe. At this time, the bottom end of the suction pipe extends into the blast hole. Finally, connect the top end of the suction pipe to the suction pipe of the water pump. After starting the water pump, the water accumulated in the blast hole is discharged through the suction pipe, and the support pipe supports the hole wall of the blast hole.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This invention proposes a device and operating method for draining water from blast holes and protecting the hole walls in low-temperature environments. A fixed overlapping plate is fitted onto the outer wall of a support pipe, and pre-drilled holes, threaded sleeves, screws, and a drill bit are installed on the overlapping plate. After the support pipe is inserted into the blast hole, the overlapping plate rests on the ground, providing excellent support for the hole wall and preventing collapse. Subsequently, the screw is screwed downwards, driving the drill bit into the ground, significantly reinforcing the stability of the overlapping plate on the ground. This ensures the entire device operates stably in low-temperature environments and will not shift or tilt due to ground loosening or external forces.

[0019] A limiting sleeve is fixed to the top surface of the cover plate, and the suction tube is inserted into the limiting sleeve. The position of the suction tube can be adjusted and braked by rotating the threaded ring upwards or downwards. When the threaded ring is rotated upwards, the inclined end of the clamping block extends into the threaded groove, allowing the suction tube to be inserted into the limiting sleeve and adjusted to the desired position. When the threaded ring is screwed downwards, the threaded ring pushes the clamping block to clamp the suction tube, while a rubber clamping ring increases friction between the clamping block and the suction tube, reliably braking the suction tube. This design allows the suction tube to be flexibly adjusted according to actual needs to better drain water from the rupture hole, and it remains stably fixed after adjustment, preventing displacement due to vibration during the suction process, thus ensuring smooth water drainage.

[0020] When needed, the screw connector is screwed onto the bottom of the suction pipe. The permeable plate can be made of sparsely sparse permeable materials such as coir mats, which can effectively prevent soil particles from entering the suction pipe while allowing water to pass through smoothly. This can prevent the suction pipe from being blocked by soil, thus affecting the efficiency of water drainage, extending the service life of the suction pipe, and reducing maintenance costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 for Figure 1 Sectional view of the structure at point AA;

[0023] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point B;

[0024] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point C;

[0025] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point D;

[0026] Figure 6 This is a schematic diagram of the connection structure between the screw and the drill bit of the present invention;

[0027] Figure 7 This is a schematic diagram of the cover plate structure of the present invention.

[0028] In the diagram: 1. Support pipe, 101. Overlap plate, 102. Reserved hole, 103. Threaded sleeve, 104. Screw, 105. Drill bit, 106. Slot, 2. Rubber sleeve, 3. Cover plate, 301. Hand-tightening screw, 302. Insertion, 303. Limiting sleeve, 304. Threaded groove, 305. Rubber clamping ring, 306. Insertion hole, 307. Clamping block, 308. Threaded ring, 309. Rubber pad, 4. Liquid extraction pipe, 401. Limiting ring, 5. Threaded connector, 501. Bottom groove, 502. Through hole, 503. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1, please refer to Figures 1 to 7 The present invention provides a technical solution: a device for draining water from blast holes and protecting the hole wall in a low-temperature environment, comprising a support pipe 1, an overlapping plate 101 fixedly fitted on the outer wall of the support pipe 1, a plurality of reserved holes 102 opened on the surface of the overlapping plate 101, a plurality of threaded sleeves 103 fixed on the top surface of the overlapping plate 101, the threaded sleeves 103 and the reserved holes 102 corresponding one to one, a screw rod 104 screwed into the inside of the threaded sleeve 103, a drill bit 105 fixed at the bottom end of the screw rod 104, and the bottom ends of the screw rod 104 and the drill bit 105 both penetrate the reserved holes 102.

[0031] After the support pipe 1 is inserted into the blast hole, the overlapping plate 101 overlaps on the ground. At this time, the support pipe 1 supports the hole wall of the blast hole. Then, the screw 104 is turned downwards, which drives the drill bit 105 to be inserted into the ground, thus reinforcing the firmness of the overlapping plate 101 installed on the ground.

[0032] In order to complete the installation of cover plate 3 on support pipe 1, the following was proposed:

[0033] A cover plate 3 is sleeved on the top end of the support pipe 1. A clamping groove 106 is formed on the outer circumferential surface at the top end of the support pipe 1. The clamping groove 106 is an annular groove. A rubber sleeve 2 is fixed at the top end of the support pipe 1. The rubber sleeve 2 is in the structure of an annular plate with a "C"-shaped cross-section. The outer annular plate of the rubber sleeve 2 covers the clamping groove 106. A plurality of hand-tightening screws 301 are screwed on the side plate of the cover plate 3. After passing through the side plate of the cover plate 3, the hand-tightening screws 301 are inserted into the clamping groove 106. A part of the rubber sleeve 2 is clamped in the clamping groove 106 by the hand-tightening screws 301, so as to form a clamping position between the cover plate 3 and the support pipe 1. Moreover, the rubber sleeve 2 rebounds to support the hand-tightening screws 301, making the hand-tightening screws 301 firmly screwed with the cover plate 3.

[0034] In order to brake the liquid extraction pipe 4 after the position adjustment, the following is proposed:

[0035] A limiting sleeve 303 is fixed on the top surface of the cover plate 3. A liquid extraction pipe 4 is inserted into the limiting sleeve 303. The top end of the liquid extraction pipe 4 is connected to the water extraction pipe of a water extraction pump. A screwing groove 304 is formed at the top end of the cover plate 3. A plurality of clamping blocks 307 are inserted on the surface of the screwing groove 304. A screwing ring 308 is sleeved and screwed inside the screwing groove 304. The screwing ring 308 pushes the clamping blocks 307 to clamp the liquid extraction pipe 4; An insertion opening 302 is formed on the top surface of the cover plate 3. The inner ring opening of the limiting sleeve 303 corresponds to the insertion opening 302. A rubber clamping ring 305 is fixed on the inner circumferential surface of the limiting sleeve 303. The rubber clamping ring 305 clamps and elastically deforms between the limiting sleeve 303 and the liquid extraction pipe 4; A plurality of insertion holes 306 are formed on the inner circumferential surface of the screwing groove 304. The clamping blocks 307 and the insertion holes 306 correspond to each other. The clamping blocks 307 are inserted into the insertion holes 306. One end of the clamping block 307 is fixed on the outer circumferential surface of the rubber clamping ring 305. The other end of the clamping block 307 has an inclined surface on the top surface; The inner circumferential surface of the screwing ring 308 has internal threads, and the internal threads are in mating connection with the outer circumferential surface of the screwing groove 304. A plurality of anti-slip grooves are formed on the outer circumferential surface of the screwing ring 308. Moreover, a rubber pad 309 is fixed on the bottom surface of the screwing groove 304. The rubber pad 309 clamps and elastically deforms between the screwing ring 308 and the bottom surface of the screwing groove 304.

[0036] First, rotate the limiting sleeve 303 upward. When the limiting sleeve 303 is above the insertion hole 306, the end with the inclined surface of the clamping block 307 extends into the screwing groove 304. After inserting the liquid extraction pipe 4 into the limiting sleeve 303 and adjusting it to the required position, rotate the limiting sleeve 303 downward to push and squeeze the clamping block 307 to clamp the liquid extraction pipe 4. The rubber clamping ring 305 clamps between the clamping block 307 and the liquid extraction pipe 4 to increase the friction, completing the braking of the liquid extraction pipe 4.

[0037] In order to reduce the soil in the blasting hole from flowing into the liquid extraction pipe 4, the following is proposed:

[0038] A limiting ring 401 is fixedly fitted at the top end of the liquid extraction tube 4; the bottom end of the liquid extraction tube 4 has an internal thread on the inner ring surface, and the bottom end of the liquid extraction tube 4 is inserted into and screwed into a screw connector 5. The screw connector 5 has an external thread on the outer ring surface at the top end. The screw connector 5 is a "convex" shaped round block. The bottom surface of the screw connector 5 has a bottom groove 501, and the top surface of the bottom groove 501 has a through hole 502. A permeable plate 503 is fixed inside the bottom groove 501.

[0039] When needed, the screw connector 5 is screwed to the bottom of the liquid extraction pipe 4. The permeable plate 503 can be made of permeable materials such as sparse palm fiber pads to prevent soil particles from entering the liquid extraction pipe 4.

[0040] Example 2, based on Example 1, proposes an operation method for a device for draining water from blast holes and protecting the hole wall in a low-temperature environment, including the following steps:

[0041] Insert the bottom end of the support pipe 1 into the blast hole. At this time, the overlapping plate 101 overlaps the ground. Then, insert the liquid extraction pipe 4 into the limiting sleeve 303 and rotate the limiting sleeve 303 downward to push the clamping block 307 to clamp the liquid extraction pipe 4. At this time, the bottom end of the liquid extraction pipe 4 extends into the blast hole. Finally, connect the top end of the liquid extraction pipe 4 to the water pump pipe. After starting the water pump, the water accumulated in the blast hole is discharged through the liquid extraction pipe 4, and the support pipe 1 supports the hole wall of the blast hole.

[0042] Instructions for using a device for draining water from blast holes and protecting the hole wall in low-temperature environments:

[0043] Insert the support pipe 1 into the blasting hole so that the overlapping disc 101 overlaps on the ground. At this time, the support pipe 1 plays a role in supporting the hole wall of the blasting hole. Rotate the screw 104 downward. Since the drill bit 105 is fixed at the bottom end of the screw 104 and the bottom ends of the screw 104 and the drill bit 105 both penetrate through the reserved hole 102, rotating the screw 104 will drive the drill bit 105 to insert into the ground, thereby strengthening the firmness of the overlapping disc 101 installed on the ground. Sleeve the cover plate 3 on the top end of the support pipe 1, and insert multiple hand-tightening screws 301 through the side plates of the cover plate 3 and then into the card slot 106. At this time, a part of the rubber sleeve 2 is clamped in the card slot 106 by the hand-tightening screw 301, forming a clamping position between the cover plate 3 and the support pipe 1. At the same time, the rubber sleeve 2 rebounds to support the hand-tightening screw 301, making the hand-tightening screw 301 and the cover plate 3 firmly screwed together. Rotate the screwing ring 308 upward. When the screwing ring 308 is above the jacking hole 306, the end with an inclined surface of the clamping block 307 extends into the screwing groove 304. Insert the liquid extraction pipe 4 into the limiting sleeve 303. The inner ring opening of the limiting sleeve 303 corresponds to the socket 302 opened on the top surface of the cover plate 3, and adjust the liquid extraction pipe 4 to the required position. Rotate the screwing ring 308 downward. The inner ring surface of the screwing ring 308 is provided with internal threads, which are connected in cooperation with the outer ring surface of the screwing groove 304. During the rotation process, the screwing ring 308 pushes the clamping block 307, making the clamping block 307 clamp the liquid extraction pipe 4. At the same time, the rubber clamping ring 305 clamps between the clamping block 307 and the liquid extraction pipe 4 and undergoes elastic deformation, increasing the friction to complete the braking of the liquid extraction pipe 4. The outer ring surface of the screwing ring 308 is provided with multiple anti-slip grooves, which are convenient for the screwing operation. And the rubber pad 309 fixed on the bottom surface of the screwing groove 304 clamps between the screwing ring 308 and the bottom surface of the screwing groove 304 and undergoes elastic deformation, enhancing the screwing stability. The inner ring surface of the bottom end of the liquid extraction pipe 4 is provided with internal threads. Screw the screw joint 5 into the bottom end of the liquid extraction pipe 4. The outer ring surface of the top end of the screw joint 5 is provided with external threads. The screw joint 5 is a "convex" shaped round block, and its bottom surface is provided with a bottom groove 501. A through hole 502 is opened on the top surface of the bottom groove 501, and a water-permeable plate 503 is fixed inside the bottom groove 501. When needed, screw the screw joint 5 onto the bottom of the liquid extraction pipe 4. The water-permeable plate 503 can be made of permeable materials such as sparse palm fiber mats to block soil particles from entering the liquid extraction pipe 4 through the through hole 502.

[0044] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for draining water from blast holes and protecting the hole wall in a low-temperature environment, comprising a support pipe (1), wherein an overlapping plate (101) is fixedly fitted onto the outer wall of the support pipe (1), characterized in that: A cover plate (3) is sleeved on the top end of the support pipe (1). A limit sleeve (303) is fixed on the top surface of the cover plate (3). A liquid extraction pipe (4) is inserted into the limit sleeve (303). The top end of the liquid extraction pipe (4) is connected to the water extraction pipe of a water extraction pump. A screw connection groove (304) is formed at the top end of the cover plate (3). A plurality of clamping blocks (307) are inserted into the surface of the screw connection groove (304). A screw connection ring (308) is sleeved and screwed inside the screw connection groove (304). The screw connection ring (308) pushes the clamping blocks (307) to clamp the liquid extraction pipe (4).

2. The device for draining water from blast holes and protecting the hole wall in a low-temperature environment according to claim 1, characterized in that: A plurality of reserved holes (102) are formed on the surface of the overlapping disc (101). A plurality of wire sleeves (103) are fixed on the top surface of the overlapping disc (101). The wire sleeves (103) and the reserved holes (102) correspond to each other one by one. A screw rod (104) is screwed inside the wire sleeve (103). A drill bit (105) is fixed at the bottom end of the screw rod (104). The bottom ends of the screw rod (104) and the drill bit (105) both penetrate through the reserved hole (102).

3. The device for draining water from blast holes and protecting the hole wall in a low-temperature environment according to claim 2, characterized in that: A clamping groove (106) is formed on the outer ring surface at the top end of the support pipe (1). The clamping groove (106) is an annular groove. A rubber sleeve (2) is fixed at the top end of the support pipe (1). The rubber sleeve (2) is a ring plate structure with a "C"-shaped cross-section. The outer ring plate of the rubber sleeve (2) covers the clamping groove (106).

4. The device for draining water from blast holes and protecting the hole wall in a low-temperature environment according to claim 3, characterized in that: A plurality of hand-tightening screw rods (301) are screwed on the side plate of the cover plate (3). After the hand-tightening screw rods (301) penetrate through the side plate of the cover plate (3), they are inserted into the clamping groove (106). A part of the rubber sleeve (2) is clamped in the clamping groove (106) by the hand-tightening screw rods (301).

5. The device for draining water from blast holes and protecting the hole wall in a low-temperature environment according to claim 1, characterized in that: An insertion port (302) is formed on the top surface of the cover plate (3). The inner ring opening of the limit sleeve (303) corresponds to the insertion port (302). A rubber clamping ring (305) is fixed on the inner ring surface of the limit sleeve (303). The rubber clamping ring (305) is elastically deformed when clamped between the limit sleeve (303) and the liquid extraction pipe (4).

6. The device for draining water from blast holes and protecting the hole wall in a low-temperature environment according to claim 5, characterized in that: A plurality of insertion holes (306) are formed on the inner ring surface of the screw connection groove (304). The clamping blocks (307) and the insertion holes (306) correspond to each other one by one. The clamping blocks (307) are inserted into the insertion holes (306). One end of the clamping block (307) is fixed on the outer ring surface of the rubber clamping ring (305). The other end of the clamping block (307) has an inclined surface on the top surface.

7. The device for draining water from blast holes and protecting the hole wall in a low-temperature environment according to claim 1, characterized in that: Internal threads are provided on the inner ring surface of the screw connection ring (308). The internal threads are in mating connection with the outer ring surface of the screw connection groove (304). A plurality of anti-slip grooves are formed on the outer ring surface of the screw connection ring (308). A rubber pad (309) is fixed on the bottom surface of the screw connection groove (304). The rubber pad (309) is elastically deformed when clamped between the screw connection ring (308) and the bottom surface of the screw connection groove (304).

8. The device for draining water from blast holes and protecting the hole wall in a low-temperature environment according to claim 1, characterized in that: A limit ring (401) is sleeved and fixed on the top end of the liquid extraction pipe (4).

9. The device for draining water from blast holes and protecting the hole wall in a low-temperature environment according to claim 1, characterized in that: The bottom end of the liquid extraction tube (4) has an internal thread on the inner ring surface. The bottom end of the liquid extraction tube (4) is inserted into and screwed into a screw connector (5). The screw connector (5) has an external thread on the outer ring surface at the top. The screw connector (5) is a "convex" shaped round block. The bottom surface of the screw connector (5) has a bottom groove (501). The top surface of the bottom groove (501) has a through hole (502). A permeable plate (503) is fixed inside the bottom groove (501).

10. A method for operating a device for draining water from blast holes and protecting the hole wall in a low-temperature environment, used to operate the device for draining water from blast holes and protecting the hole wall in a low-temperature environment as described in any one of claims 1-9, characterized in that: The operation method includes the following steps: Insert the bottom end of the support pipe (1) into the blast hole. At this time, the overlapping plate (101) overlaps the ground. Then insert the liquid extraction pipe (4) into the limiting sleeve (303) and rotate the limiting sleeve (303) downward to push the clamping block (307) to clamp the liquid extraction pipe (4). At this time, the bottom end of the liquid extraction pipe (4) extends into the blast hole. Finally, connect the top end of the liquid extraction pipe (4) to the water pump pipe. After starting the water pump, the water in the blast hole is discharged through the liquid extraction pipe (4), and the support pipe (1) supports the hole wall of the blast hole.

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