Engineering blasting hole backfilling device

Abstract

The utility model discloses an engineering blasting blast hole backfilling device which comprises a backfilling funnel and a supporting frame, the backfilling funnel is fixedly arranged on the supporting frame, the supporting frame comprises a fixing ring and a plurality of supporting legs, the supporting legs are evenly arranged around the backfilling funnel, the tops of the supporting legs are fixedly connected with the fixing ring, and extension legs are arranged at the bottoms of the supporting legs. An internal thread ring is rotationally arranged in the supporting leg, an external thread is arranged on the extension leg and matched with the internal thread ring, a limiting block is arranged on the side wall of the top of the extension leg, a limiting groove is correspondingly formed in the inner wall of the supporting leg, the limiting block is arranged in the limiting groove in a sliding mode, and a driving mechanism used for driving the internal thread ring to rotate is arranged on the supporting leg. The internal thread ring is driven by the driving mechanism to rotate, the extension legs stretch out and draw back under the limiting action of the limiting blocks and the limiting grooves, and therefore the extension legs abut against the ground, are suitable for being used in uneven blasting areas, and are higher in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering blasting, in particular to an engineering blasting blasthole backfilling device. Background Art

[0002] After development, engineering blasting technology has penetrated into many fields of economic construction, especially in railway construction, mining, urban demolition and directional blasting, etc. After the charge in the blast hole is completed, the remaining blast hole section needs to be filled to fully utilize the energy of the explosive, reduce flying rocks and improve the safety of blasting.

[0003] However, the terrain in the blast hole area is uneven, and the traditional backfill funnel does not have an adjustable support structure. During the filling process, the funnel needs to be supported manually to maintain the stability of the backfill funnel. This fixing method is extremely unreliable and has poor safety. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the above technical problems and provide a blast hole backfilling device for engineering blasting.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: a backfilling device for engineering blasting blastholes, including a backfilling funnel and a support frame. The backfilling funnel is fixedly arranged on the support frame. The support frame includes a fixed ring and multiple support legs. The multiple support legs are evenly arranged around the backfilling funnel, and the top is fixedly connected to the fixed ring. An extension leg is provided at the bottom of the support leg. An internal threaded ring is rotatably provided in the support leg. An external thread is provided on the extension leg and cooperates with the internal threaded ring. A limit block is provided on the top side wall of the extension leg, and a limit groove is correspondingly provided on the inner wall of the support leg. The limit block is slidably arranged in the limit groove, and a driving mechanism for driving the internal threaded ring to rotate is provided on the support leg.

[0006] Furthermore, the driving mechanism includes a worm, and worm gear teeth are provided on the outer side wall of the internal threaded ring and cooperate with the worm.

[0007] Furthermore, a receiving cavity is provided on the supporting leg corresponding to the worm, the worm is rotatably arranged in the receiving cavity, one end of the worm extends out of the receiving cavity and is connected to a crank.

[0008] Furthermore, an extension tube is provided at the bottom opening of the backfill funnel, and the extension tube is a multi-stage telescopic extension tube.

[0009] Furthermore, the extension pipe includes multiple pipe sections, and the diameters of the multiple pipe sections increase successively from top to bottom. An outer anti-slip ring is provided at the bottom end of the upper pipe section, and an inner anti-slip ring is provided at the top end of the lower pipe section. The inner diameter of the inner anti-slip ring is smaller than the outer diameter of the upper outer anti-slip ring, and larger than the outer diameter of the upper pipe section.

[0010] Furthermore, a magnetic ring is provided on the inner wall of the inner anti-slip ring, and the magnetic ring is attracted to the outer wall of the upper pipe section.

[0011] Furthermore, a valve baffle is rotatably provided at the bottom opening of the backfill funnel, and a notch groove is provided on the bottom side wall of the backfill funnel. The valve baffle passes through the notch groove to seal or open the backfill funnel outlet, and a paddle is provided on one side of the valve baffle for driving the valve baffle to rotate.

[0012] Compared with the prior art, the utility model has the following advantages: the utility model drives the internal thread ring to rotate through the driving mechanism, and the extension leg is extended and retracted under the limiting action of the limiting block and the limiting groove, so as to resist the ground, which is suitable for use in uneven blasting areas and has stronger practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a structural schematic diagram of an engineering blasting blasthole backfilling device.

[0014] Figure 2 The utility model is a schematic diagram of the internal structure of a support leg of a blast hole backfilling device for engineering blasting.

[0015] Figure 3 The utility model is a structural schematic diagram of a pipe section of a blast hole backfilling device for engineering blasting.

[0016] As shown in the figure: 1. Backfill funnel; 2. Fixed ring; 3. Support leg; 4. Extension leg; 5. Internal thread ring; 6. Limit block; 7. Limit groove; 8. Worm; 9. Crank; 10. Extension pipe; 11. Pipe section; 12. External anti-slip ring; 13. Internal anti-slip ring; 14. Magnetic ring; 15. Valve baffle; 16. Notch groove; 17. Pick. DETAILED DESCRIPTION

[0017] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In conjunction with the accompanying drawings, a device for backfilling a blasting hole for engineering blasting includes a backfilling funnel 1 and a support frame. The backfilling funnel 1 is fixedly arranged on the support frame. The support frame includes a fixing ring 2 and a plurality of supporting legs 3. The plurality of supporting legs 3 are evenly arranged around the backfilling funnel 1, and the top is fixedly connected to the fixing ring 2. An extension leg 4 is provided at the bottom of the supporting leg 3. An internal threaded ring 5 is rotatably provided inside the supporting leg 3. An external thread is provided on the extension leg 4 and cooperates with the internal threaded ring 5. A limit block 6 is provided on the top side wall of the extension leg 4, and a limit groove 7 is correspondingly provided on the inner wall of the supporting leg 3. The limit block 6 is slidably arranged in the limit groove 7, and a driving mechanism for driving the internal threaded ring 5 to rotate is provided on the supporting leg 3.

[0021] Driving mechanism: The driving mechanism includes a worm 8, and worm gear teeth are provided on the outer wall of the inner thread ring 5, and cooperate with the worm 8. A receiving cavity is provided on the support leg 3 corresponding to the worm 8, and the worm 8 is rotatably arranged in the receiving cavity, and one end thereof extends out of the receiving cavity, and is connected to a crank 9, which drives the worm 8 to rotate through the crank 9, and drives the inner thread ring 5 to rotate through the thread teeth cooperating with the worm, and drives the extension leg to extend or retract under the limiting action of the limiting block 6 and the limiting groove 7, so as to facilitate the adjustment of the length of the support leg 3, thereby adapting to the uneven blasting area, and the worm gear transmission has a self-locking function, which can prevent the extension leg 4 from automatically retracting.

[0022] Discharge port extension structure: An extension tube 10 is provided at the bottom opening of the backfill funnel 1, and the extension tube 10 is a multi-stage telescopic extension tube. The extension tube 10 includes multiple pipe sections 11, and the top of the uppermost pipe section 11 is fixedly connected to the bottom of the backfill funnel 1. The diameters of the multiple pipe sections 11 increase from top to bottom. An outer anti-slip ring 12 is provided at the bottom of the upper pipe section 11, and an inner anti-slip ring 13 is provided at the top of the lower pipe section 11. The inner diameter of the inner anti-slip ring 13 is smaller than the outer diameter of the upper outer anti-slip ring 12, and larger than the outer diameter of the upper pipe section 11. There is no outer anti-slip ring 12 at the bottom of the lowermost pipe section 11. A magnetic ring 14 is provided on the inner wall of the inner anti-slip ring 13, and the magnetic ring 14 is mutually attracted to the outer wall of the upper pipe section 11. The extension tube 10 can be extended by pulling it downward, so as to be close to the blasting hole, which is convenient for filling and avoids leakage of filling materials and waste.

[0023] Valve structure: A valve baffle 15 is rotatably provided at the bottom opening of the backfill funnel 1, and a notch groove 16 is provided on the bottom side wall of the backfill funnel 1. The valve baffle 15 passes through the notch groove 16 to seal or open the outlet of the backfill funnel 1. A paddle 17 is provided on one side of the valve baffle 15. By paddle 17, the valve baffle 15 is driven to rotate, so that the outlet of the backfill funnel 1 can be sealed or opened to facilitate the control of the material discharge speed.

[0024] During the specific implementation of the utility model, the device is moved above the blasting hole, and the crank is turned to adjust the length of the support leg (here, the overall length of the support leg 3 and the extension leg 4) to stabilize the support; the extension tube 10 is pulled downward to extend it to the opening of the blasting hole, and the stuffing is poured into the backfill funnel 1, and enters the blasting hole through the backfill funnel 1 and the extension tube 10.

[0025] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A blast hole backfilling device for engineering blasting, comprising a backfilling funnel (1) and a support frame, wherein the backfilling funnel (1) is fixedly arranged on the support frame, and is characterized in that: The support frame comprises a fixed ring (2) and a plurality of support legs (3). The plurality of support legs (3) are evenly arranged around the backfill funnel (1) and are fixedly connected to the fixed ring (2) at the top. An extension leg (4) is provided at the bottom of the support leg (3). An internal threaded ring (5) is rotatably provided inside the support leg (3). The extension leg (4) is provided with an external thread and cooperates with the internal threaded ring (5). A limit block (6) is provided on the side wall of the top of the extension leg (4). A limit groove (7) is correspondingly provided on the inner wall of the support leg (3). The limit block (6) is slidably arranged in the limit groove (7). A driving mechanism for driving the internal threaded ring (5) to rotate is provided on the support leg (3).

2. The engineering blasting blasthole backfilling device according to claim 1 is characterized in that: The driving mechanism comprises a worm (8), and worm gear teeth are provided on the outer side wall of the internal thread ring (5) and cooperate with the worm (8).

3. The engineering blasting blasthole backfilling device according to claim 2 is characterized in that: The support leg (3) is provided with a receiving cavity corresponding to the worm (8), the worm (8) is rotatably arranged in the receiving cavity, and one end of the worm (8) extends out of the receiving cavity and is connected to a crank (9).

4. The engineering blasting blasthole backfilling device according to claim 1, characterized in that: An extension tube (10) is provided at the bottom opening of the backfill funnel (1), and the extension tube (10) is a multi-stage telescopic extension tube.

5. The engineering blasting blasthole backfilling device according to claim 4 is characterized in that: The extension tube (10) comprises a plurality of tube sections (11), the diameters of the plurality of tube sections (11) gradually increase from top to bottom, an outer anti-slip ring (12) is provided at the bottom end of the upper tube section (11), and an inner anti-slip ring (13) is provided at the top end of the lower tube section (11), the inner diameter of the inner anti-slip ring (13) is smaller than the outer diameter of the upper outer anti-slip ring (12) and larger than the outer diameter of the upper tube section (11).

6. The engineering blasting blasthole backfilling device according to claim 5, characterized in that: A magnetic attraction ring (14) is provided on the inner wall of the inner anti-slip ring (13), and the magnetic attraction ring (14) is attracted to the outer wall of the upper pipe section (11).

7. The engineering blasting blasthole backfilling device according to claim 1, characterized in that: A valve baffle (15) is rotatably provided at the bottom opening of the backfilling funnel (1), a notch groove (16) is provided on the bottom side wall of the backfilling funnel (1), the valve baffle (15) passes through the notch groove (16) to seal or open the outlet of the backfilling funnel (1), and a paddle (17) is provided on one side of the valve baffle (15) for paddle-shifting the valve baffle (15) to rotate.

Images