Blasting hole backfilling device

By designing a blasting borehole backfilling device with moving and vibrating components, the problems of backfill blockage and large voids were solved, achieving efficient and dense filling of blasting holes and improving blasting effect.

CN224246895UActive Publication Date: 2026-05-15YUNNAN TIANYU BLASTING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN TIANYU BLASTING TECH CO LTD
Filing Date
2025-06-27
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In existing blasting operations, backfill material is prone to clogging, making material feeding difficult. Furthermore, the backfill material entering the blast hole has large voids and poor compaction, which affects the blasting effect.

Method used

A blasting borehole backfilling device was designed, comprising a moving component, a filling component, and an oscillating component. The moving vehicle moves the filler to the borehole, and the lifting component and oscillator are used to make the filler quickly enter the borehole. The oscillating rod is used to oscillate the filler in the borehole to ensure that the filler is compacted.

Benefits of technology

It effectively prevented backfill blockage, improved the backfill density of the blast holes, and enhanced the blasting effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a blasting hole backfilling device, and relates to the technical field of blasting construction. The device comprises a moving assembly, a filling assembly and an oscillating assembly. The moving assembly comprises a moving vehicle body and a moving part. A discharging opening is formed in the middle of the moving vehicle body. The filling assembly is composed of a material containing part and a filling pipe, and the material containing part is connected with the discharging opening; the oscillation assembly comprises a supporting base, a lifting piece and an oscillation rod, one end of the oscillation rod penetrates through the discharging opening and penetrates out of the bottom end of the filling pipe, the lifting piece is connected with the oscillation rod, and an oscillator is arranged on the oscillation rod. The movable vehicle body is arranged so that the material containing part can be conveniently moved to the blast hole, after filler is poured into the material containing part, the lifting part drives the oscillating rod to move upwards, the oscillator drives the oscillating rod to shake, and therefore the filler in the material containing part can be accelerated to fall into the blast hole through the filling pipe, blockage of the interior of the material containing part is avoided, the oscillating rod can oscillate the filler in the blast hole, and the filling efficiency is improved. And therefore, the backfilling effect of the blast hole is improved.
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Description

Technical Field

[0001] This utility model relates to the field of blasting construction technology, specifically to a blasting borehole backfilling device. Background Technology

[0002] During blasting operations, blasting holes need to be drilled in the pre-blasting area and explosive charges need to be placed. After the explosive charges are placed, the blasting holes need to be backfilled and sealed with mineral powder, gravel and other backfill materials in order to make full use of the explosive energy and reduce flyrock.

[0003] Utility model patent CN210773723U discloses an engineering blasting borehole backfilling device, including a placement platform, a backfilling funnel, and a positioning assembly. Two side-by-side handrails are fixedly installed on the right side of the placement platform, and connecting rods are fixedly installed at the four corners of the bottom. Universal wheels are provided at the bottom ends of the connecting rods. Two limiting blocks are fixedly installed on the top of the placement platform near the handrails. A first fixing head is fixedly installed on one side of the two limiting blocks near the edge of the placement platform, and a first limiting spring is connected to the first fixing head. The backfilling funnel is embedded through the placement platform, located to the left of the limiting blocks and between the two connecting rods. The positioning assembly includes two sleeves and a U-shaped rod. The two sleeves are respectively hinged to the front and rear sides of the placement platform, and the two ends of the U-shaped rod are respectively inserted into the interior of the two sleeves. The outer walls of the sleeves are fixed... A second fixing head is fixedly installed, and the end of the first limiting spring away from the first fixing head is connected to the second fixing head. A second limiting spring is installed inside the sleeve, and the two ends of the second limiting spring are respectively connected to the sleeve and the U-shaped rod. The backfill funnel is placed on the placement platform, and the placement platform can easily push the backfill funnel to move with the help of casters, making the whole device highly mobile, time-saving and labor-saving. In addition, during the filling process, there is no need to manually hold the funnel. Only the positioning component is used to fix the two casters to prevent it from moving. At the same time, the positioning component is inserted into the soil to achieve the purpose of fixing the position of the device. The fixation is extremely stable and safe. In this patent, during the filling of backfill material, the backfill material is easy to block the funnel opening and is difficult to enter the blast hole. At the same time, the backfill material entering the blast hole is easy to support each other and form a large gap, resulting in poor backfill compaction of the blast hole and affecting the blasting effect. Utility Model Content

[0004] The main purpose of this utility model is to provide a blasting hole backfilling device to solve the problems of easy blockage of backfill material during the existing blasting hole backfilling process, which leads to difficulties in material feeding, and large voids and poor compaction of backfill material entering the blasting hole.

[0005] To achieve the above objectives, this utility model provides a blasting hole backfilling device, comprising:

[0006] The mobile component includes a mobile body and a movable part disposed on the mobile body; the mobile body is provided with a push handle and a discharge port is provided in the middle of the mobile body.

[0007] A filling assembly includes a material holding component mounted on a mobile vehicle body and a filling tube mounted on the material holding component; the material holding component is connected to a discharge port, and the internal dimensions of the material holding component decrease from one end near the discharge port to the end near the filling tube; the filling tube is coaxially arranged with the discharge port.

[0008] The oscillation assembly includes a support base mounted on a moving vehicle body, a lifting member mounted on the support base, and an oscillating rod slidably mounted on the support base; the support base is coaxially arranged with the discharge port; one end of the oscillating rod passes through the discharge port and protrudes from the bottom end of the filling tube; the lifting member is connected to the oscillating rod, and the lifting member moves up or down under the action of external force, so that the oscillating rod moves up or down; an oscillator is provided on the oscillating rod; the oscillator drives the oscillating rod to vibrate under the action of external force.

[0009] As a further improvement of this utility model, the material holding component includes a material holding cylinder; the material holding cylinder has a material holding cavity inside; the internal size of the material holding cavity decreases from the end near the discharge port to the end near the filling tube; the filling tube is located at the bottom end of the material holding cylinder.

[0010] As a further improvement of this utility model, there is a gap between the bottom end of the filling tube away from the bottom end of the material container and the plane where the bottom end of the moving part is located.

[0011] As a further improvement of this utility model, the support base includes a support rod connected to the mobile vehicle body and a support ring disposed on the support rod; the center of the support ring is concentrically disposed with the center of the filling tube; the oscillating rod is slidably located inside the support ring.

[0012] As a further improvement of this utility model, the lifting member includes a lifting motor disposed on the support ring and a drive gear disposed on the lifting motor; the end of the oscillating rod is provided with a rack; the rack meshes with the drive gear.

[0013] As a further improvement of this utility model, the oscillator includes a sliding sleeve disposed at the lower end of the support ring and an oscillating motor disposed outside the sliding sleeve; an oscillating cavity is provided on the outer wall of the sliding sleeve; the oscillating rod is slidably located inside the sliding sleeve; a cam is provided on the oscillating motor; the cam passes through the oscillating cavity and abuts against the oscillating rod.

[0014] The beneficial effects of this utility model are reflected in:

[0015] By setting up a mobile vehicle body, it is easy to move the material container to the blast hole. After the filler is poured into the material container, the lifting component drives the vibrating rod to move upward. The vibrator drives the vibrating rod to shake, thereby accelerating the filling material inside the material container to fall into the blast hole through the filling pipe, avoiding blockage inside the material container. At the same time, the vibrating rod vibrates the filling material in the blast hole, making the filling material more compact and improving the backfilling effect of the blast hole. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a blasting hole backfilling device according to the present invention;

[0017] Figure 2 This is a schematic diagram of the oscillator structure of a blasting borehole backfilling device according to the present invention;

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Moving vehicle body; 101. Frame; 102. Car frame; 2. Moving parts; 201. Casters; 3. Push handle; 4. Discharge port; 5. Material holding parts; 501. Material holding cylinder; 502. Material holding cavity; 6. Filling tube; 7. Support base; 701. Support rod; 702. Support ring; 8. Lifting parts; 801. Lifting motor; 802. Drive gear; 9. Vibrating rod; 10. Vibrator; 1001. Sliding sleeve; 1002. Vibrating motor; 11. Support column; 12. Rack; 13. Vibrating cavity; 14. Cam. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this utility model. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] In one embodiment, see Figure 1 The present invention relates to a blasting borehole backfilling device, comprising a moving component, a filling component, and a vibration component.

[0022] The moving component includes a moving body 1 and a moving part 2 mounted on the moving body 1. The moving body 1 is equipped with a push handle 3 and a discharge port 4 in the middle of the moving body 1. The filling component includes a material holding part 5 mounted on the moving body 1 and a filling tube 6 mounted on the material holding part 5. The material holding part 5 is connected to the discharge port 4. The internal dimensions of the material holding part 5 decrease from one end near the discharge port 4 to the other end near the filling tube 6. The filling tube 6 is coaxially arranged with the discharge port 4. The oscillation component includes a support base 7 mounted on the moving body 1, a lifting part 8 mounted on the support base 7, and an oscillating rod 9 slidably mounted on the support base 7. The support base 7 is coaxially arranged with the discharge port 4. One end of the oscillating rod passes through the discharge port 4 and protrudes from the bottom end of the filling tube 6. The lifting part 8 is connected to the oscillating rod 9. The lifting part 8 moves up or down under the action of external force, so that the oscillating rod 9 moves up or down. An oscillator 10 is mounted on the oscillating rod 9. The oscillator 10 drives the oscillating rod 9 to vibrate under the action of external force.

[0023] Preferably, the mobile vehicle body 1 includes a frame 101 and a frame 102 disposed on the frame 101, with the interior of the frame 102 hollow to form a discharge port 4.

[0024] Preferably, the movable component 2 includes a caster wheel 201 mounted on the frame 101, a push handle 3 welded to the frame 102, and a support column 11 welded to the frame 102. The height of the support column 11 is greater than the height of the frame 102 to the bottom of the caster wheel 201 when it is parallel to the horizontal plane.

[0025] Further, see Figure 2 The material holding component 5 includes a material holding cylinder 501, and the inside of the material holding cylinder 501 is provided with a material holding cavity 502. The internal dimensions of the material holding cavity 502 decrease from one end near the discharge port 4 to one end near the filling tube 6. The filling tube 6 is located at the bottom end of the material holding cylinder 501.

[0026] Preferably, the material container 501 has a funnel-shaped structure with a large upper opening and a small lower opening. The large opening of the material container 501 is connected to the discharge port 4, and the small opening of the material container 501 is connected to the filling tube 6.

[0027] Further, see Figure 1 There is a gap between the bottom end of the filling tube 6 away from the bottom end of the material container 501 and the plane where the bottom end of the moving part 2 is located.

[0028] Preferably, there is a gap between the bottom end of the filling tube 6 and the plane containing the bottom end of the caster wheel 201.

[0029] In the above setup, by holding the push handle 3 and lifting it, the frame 101 can be tilted. At this time, the end of the frame 101 closest to the operator is higher, and the support column 11 is off the ground. The mobile vehicle 1 can be pushed forward or backward to facilitate position movement. During the filling of the blast hole, the mobile vehicle 1 is pushed to the blast hole so that the filling tube 6 is directly facing the blast hole. The filling material is poured into the discharge port 4 and enters the material container 501. The filling material enters the filling tube 6 along the material container 502 and finally falls into the blast hole to fill it.

[0030] Further, see Figure 2 The support base 7 includes a support rod 701 connected to the mobile vehicle body 1 and a support ring 702 disposed on the support rod 701. The center of the support ring 702 is concentrically disposed with the center of the filling tube 6, and the oscillating rod 9 is slidably located inside the support ring 702.

[0031] Preferably, two sets of support rods 701 are provided, and the two sets of support rods 701 are welded to the frame 102 in a figure-eight shape.

[0032] Further, see Figure 2 The lifting component 8 includes a lifting motor 801 mounted on the support ring 702 and a drive gear 802 mounted on the lifting motor 801. The end of the oscillating rod 9 is provided with a rack 12, which meshes with the drive gear 802.

[0033] Preferably, the lifting motor 801 is bolted to the support ring 702, and the lifting motor 801 adopts an existing structure.

[0034] Further, see Figure 2 The oscillator 10 includes a sliding sleeve 1001 disposed at the lower end of the support ring 702 and an oscillating motor 1002 disposed outside the sliding sleeve 1001. An oscillating cavity 13 is provided on the outer wall of the sliding sleeve 1001. The oscillating rod 9 is slidably located inside the sliding sleeve 1001. A cam 14 is provided on the oscillating motor 1002. The cam 14 passes through the oscillating cavity 13 and abuts against the oscillating rod 9.

[0035] Preferably, the sliding sleeve 1001 is welded to the lower end of the support ring 702, and the sliding sleeve 1001 is a cylinder with open ends and hollow interior.

[0036] Preferably, the vibrating motor 1002 is provided with a cover.

[0037] In the above setup, after the mobile vehicle 1 is pushed to the blast hole, the filling tube 6 is adjusted to face the blast hole, and the power to the lifting motor 801 is turned on to control the lifting motor 801 to rotate clockwise. The drive gear 802 meshes with the rack 12 to drive the oscillating rod 9 to move down and insert into the blast hole, pouring the filling material into the holding cylinder 501. The filling material enters the blast hole. At this time, the lifting motor 801 is controlled to rotate counterclockwise to drive the oscillating rod 9 to move up. At the same time, the oscillating motor 1002 is controlled to rotate to drive the cam 14 to continuously drive the oscillating rod 9 to vibrate, so that the filling material in the holding cavity 502 falls quickly into the blast hole, avoiding the filling material from clogging in the holding cavity 502. At the same time, the oscillating rod 9 drives the filling material in the blast hole to vibrate, reducing the gap between the filling materials and making the filling materials more compact.

[0038] In this embodiment, by pushing the mobile vehicle 1 to the blast hole to be filled, the lifting motor 801 is turned on to rotate clockwise, causing the vibrating rod 9 to move down and insert into the blast hole, pouring the filler into the material holding chamber 502. The filler then falls into the blast hole. After the vibrating rod 9 moves down into the blast hole, the lifting motor 801 is controlled to rotate counterclockwise to drive the vibrating rod 9 up. At the same time, the vibrating motor 1002 works to drive the vibrating rod 9 to vibrate. The filler in the material holding chamber 502 falls quickly into the blast hole after the vibrating rod 9 moves up and vibrates, avoiding blockage. The filler in the blast hole has a smaller gap after the vibrating rod 9 moves up and vibrates, making the filling of the blast hole more compact and improving the blast hole backfilling effect.

[0039] 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 within the protection scope of the present utility model.

Claims

1. A device for backfilling blasting holes, characterized in that, include: The moving component includes a moving body (1) and a moving part (2) disposed on the moving body (1); the moving body (1) is provided with a push handle (3) and a discharge port (4) is provided in the middle of the moving body (1). The filling assembly includes a material holding component (5) disposed on the mobile vehicle body (1) and a filling tube (6) disposed on the material holding component (5); the material holding component (5) is connected to the discharge port (4), and the internal dimensions of the material holding component (5) decrease from one end near the discharge port (4) to one end near the filling tube (6); the filling tube (6) is coaxially disposed with the discharge port (4); The oscillation assembly includes a support base (7) mounted on a mobile vehicle body (1), a lifting member (8) mounted on the support base (7), and an oscillating rod (9) slidably mounted on the support base (7); the support base (7) is coaxially arranged with the discharge port (4); one end of the oscillating rod passes through the discharge port (4) and protrudes from the bottom end of the filling tube (6); the lifting member (8) is connected to the oscillating rod (9), and the lifting member (8) moves up or down under the action of external force, so that the oscillating rod (9) moves up or down; the oscillating rod (9) is provided with an oscillator (10); the oscillator (10) drives the oscillating rod (9) to vibrate under the action of external force.

2. The blasting borehole backfilling device according to claim 1, characterized in that: The material holding component (5) includes a material holding cylinder (501); the material holding cylinder (501) has a material holding cavity (502) inside; the internal size of the material holding cavity (502) decreases from one end near the discharge port (4) to one end near the filling tube (6); the filling tube (6) is located at the bottom end of the material holding cylinder (501).

3. The blasting borehole backfilling device according to claim 2, characterized in that: There is a gap between the bottom end of the filling tube (6) away from the bottom end of the material container (501) and the plane where the bottom end of the moving part (2) is located.

4. The blasting hole backfilling device according to claim 3, characterized in that: The support base (7) includes a support rod (701) connected to the mobile vehicle body (1) and a support ring (702) disposed on the support rod (701); the center of the support ring (702) is concentrically disposed with the center of the filling tube (6); the oscillating rod (9) is slidably located inside the support ring (702).

5. A blasting borehole backfilling device according to claim 4, characterized in that: The lifting component (8) includes a lifting motor (801) mounted on a support ring (702) and a drive gear (802) mounted on the lifting motor (801); the end of the oscillating rod (9) is provided with a rack (12); the rack (12) meshes with the drive gear (802).

6. The blasting hole backfilling device according to claim 5, characterized in that: The oscillator (10) includes a sliding sleeve (1001) disposed at the lower end of the support ring (702) and an oscillating motor (1002) disposed outside the sliding sleeve (1001); an oscillating cavity (13) is provided on the outer wall of the sliding sleeve (1001); the oscillating rod (9) is slidably located inside the sliding sleeve (1001); a cam (14) is provided on the oscillating motor (1002); the cam (14) passes through the oscillating cavity (13) and abuts against the oscillating rod (9).