CN213515312U - Molybdenum ore open blasting blasthole filling and fixing device - Google Patents

Abstract

The utility model belongs to the technical field of blasting engineering, in particular to a molybdenum ore open blasting blasthole filling and fixing device, which comprises a middle shaft, a loop bar, a slide seat, a support seat, a base seat, a stay bar, a barb, a landing leg, an inserted bar and a blocking net, wherein the loop bar is connected with the middle shaft through screw threads, the lower end of the middle shaft is provided with the slide seat, the support seat and the base seat from top to bottom in a spacing sleeve way, a plurality of obliquely arranged stay bars are arranged between the slide seat and the support seat, the upper end part of each stay bar is provided with the barb extending outwards, the blocking net is covered outside the stay bar, the slide seat moves to drive each stay bar to rotate around a corresponding articulated shaft to draw in or open the blocking net, the blocking net holds filler in the blasthole during blasting, so that crushed stone blocks filled in the blasthole can be radially diffused along the blasthole, the existing time of blasting generated gas in the blasthole is prolonged, the cracks can be generated, and the filling in the blast hole is prevented from flying to splash around the blast hole.

Description

Molybdenum ore open blasting blasthole filling and fixing device

Technical Field

The utility model belongs to the technical field of the blasting engineering, especially, relate to a molybdenum ore strip blasting big gun hole fills fixing device.

Background

The blasthole is a hole drilled on a blasted rock body or an ore body and used for filling explosives for blasting, a plurality of factors influencing the blasting effect exist, the quality of blasthole filling is one of important factors, the traditional blasthole filling is generally made from local materials, for example, on-site coarse sand, drill cuttings, clay, broken stones and the like are adopted to plug the blasthole filled with the explosives, the compaction degree of the plugging has important influence on the filling amount in the blasthole and the time of gas generated by the blasting of the gunpowder in the blasthole, the good filling can prolong the existing time of the gas generated by blasting in the blasthole, the longer the time is, the more the surrounding rock can be cracked in a larger range, and the better blasting effect is achieved.

In the actual filling work, the filling is often not compact and firm enough, so that the blasting effect is influenced, and the stones are easy to fly out of the blastholes in blasting to cause safety accidents.

Disclosure of Invention

In order to solve the problem in the background art, the utility model discloses a molybdenum ore open blasting big gun hole fills fixing device carries out the shutoff to the big gun hole packing, and the extension blasting generates gaseous existence time in the big gun hole, makes the country rock produce the crack at great within range, reaches better blasting effect.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a molybdenum ore open blasting blasthole filling and fixing device comprises a center shaft, loop bars, a sliding seat, a support, a base, stay bars, barbs, support legs, insertion bars and a blocking net, wherein the center shaft is vertically arranged, external threads are arranged on the outer circular surface of the upper end of the center shaft, a polished rod is arranged on the outer circular surface of the lower end of the center shaft, the coaxially arranged loop bars are sleeved on the upper end of the center shaft, the sleeve bars are in threaded connection with the center shaft, the sliding seat, the support and the base are sleeved on the lower end of the center shaft from top to bottom in an interval mode, the top of the sliding seat is in close contact with the lower end of the loop bars, a plurality of obliquely arranged stay bars are arranged between the sliding seat and the support, the lower end of each stay bar is respectively in hinged connection with the support through a horizontally arranged hinge shaft, the middle rod body of each stay bar is clamped in a kidney-shaped clamping groove corresponding to the edge, the arresting net is covered outside the support rods, the support seat is fixedly connected with the base seat through a plurality of vertically arranged support legs, the base seat is fixedly connected with the lower end portion of the center shaft, a plurality of inserting rods are arranged at the bottom of the base seat along the circumferential direction of the base seat at intervals, the inserting rods extend towards the direction far away from the center shaft, the sleeve rods rotate up and down to drive the sliding seat to move towards the direction far away from or close to the support seat, and the sliding seat moves to drive each support rod to rotate around the corresponding hinged shaft to prop or draw in the arresting net.

Further, the diameter of the support is smaller than that of the base, and the diameter of the sliding seat is larger than that of the support.

Furthermore, at least three support rods are arranged at intervals along the circumferential direction of the support.

Further, the loop bar includes grab handle, loop bar body and bearing, through threaded connection between loop bar body and the axis, is connected with the grab handle in the upper end of loop bar body, establishes the bearing at the lower pot head of loop bar body, rotates between loop bar body and the bearing to be connected, and the bearing passes through the bearing frame and can dismantle with the slide top and be connected, makes the loop bar body rotatory from top to bottom through the grab handle, moves along the axial direction of keeping away from or being close the support in the loop bar body through bearing frame drive slide when the loop bar body is rotatory from top to bottom.

Further, the curved portion of the barb extends away from the strut.

Furthermore, a horizontally arranged handle is connected to the upper end part of the middle shaft.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses molybdenum ore open blasting blasthole filling and fixing device, including axis, loop bar, slide, support, base, vaulting pole, barb, landing leg, inserted bar and arresting net, the inserted bar inserts in the gunpowder of packing in the blasthole, loop bar upper and lower rotary drive slide moves to the direction that is close to the support, the slide removes the rotatory arresting net that props up of every vaulting pole around corresponding articulated shaft and struts, vaulting pole top barb and blasthole lateral wall contact and insert in the lateral wall with arresting net edge is fixed on the blasthole lateral wall, during the blasting, the utility model discloses blasthole filling and fixing device receives the explosion impact force, and the barb atress continues to insert to blasthole lateral wall depths, and the arresting net catches the blasthole intussuseption, makes the blasthole intussuseption of blasthole intussuseption fill garrulously along the radial diffusion of blasthole, prolongs the blasting and produces the gas and in the blasthole in the crack messenger country rock in great scope, reaches better blasting effect, and the filling in the blast hole is prevented from flying to splash around the blast hole.

Drawings

Fig. 1 is a schematic cross-sectional view of the present invention;

fig. 2 is a schematic perspective view of the present invention;

in the above figures: 1-a handle; 2-a loop bar; 2.1-grab handle; 2.2-the loop bar body; 2.3-bearings; 3-a slide seat; 4-the medial axis; 5-barb; 6-a stay bar; 7-support; 8-a support leg; 9-inserting a rod; 10-a base; 11-card slot.

Detailed Description

For a better understanding of the present invention, the following examples are provided to further illustrate the present invention, but the present invention is not limited to the following examples.

The utility model discloses a molybdenum ore open blasting blasthole filling and fixing device which is elaborated in detail by combining an attached drawing 1 and an attached drawing 2, and comprises a central shaft 4, a loop bar 2, a slide seat 3, a support 7, a base 10, a stay bar 6, a barb 5, a landing leg 8, an insert bar 9 and a blocking net, wherein the central shaft 4 is vertically arranged, an external thread is arranged on the external circular surface of the upper end of the central shaft 4, the external circular surface of the lower end of the central shaft 4 is a polished rod, the upper end of the central shaft 4 is sleeved with the loop bar 2 which is coaxially arranged, the loop bar 2 is connected with the central shaft 4 through a thread, the lower end of the central shaft 4 is sleeved with the slide seat 3, the support seat 7 and the base 10 at intervals from top to bottom, the top of the slide seat 3 is contacted with the lower end part of the loop bar 2, a plurality of obliquely arranged stay bars 6 are arranged between the slide seat 3 and the support seat 7, the, an outward extending barb 5 is arranged at the upper end part of each support rod 6, a barrier net (not shown in the drawing) extending towards the support rod 6 is connected on a support seat 7, the barrier net is covered outside the support rod 6, the connection mode among the barrier net, the slide seat 3, the support rod 6 and the support seat 7 is similar to the structure of an umbrella used in life, the support seat 7 is fixedly connected with a base seat 10 through a plurality of vertically arranged support legs 8, the base seat 10 is fixedly connected with the lower end part of the middle shaft 4, a plurality of inserting rods 9 are arranged at the bottom of the base 10 at intervals along the circumferential direction of the base, the inserting rods 9 extend in the direction far away from the center shaft 4, the sleeve rods 2 rotate up and down to drive the sliding seat 3 to move in the direction far away from or close to the support 7, the sliding seat 3 moves to drive each supporting rod 6 to rotate around a corresponding hinge shaft to open or furl the arresting net, and the opening or furl process of the arresting net is similar to the opening or furl process of umbrella cloth of an umbrella.

As an optional design, the diameter of the support 7 is preferably smaller than that of the base 10, the diameter of the slide 3 is larger than that of the support 7, at least three support rods 6 are arranged at uniform intervals along the circumferential direction of the support 7, it should be noted here that 4-8 support rods 6 are preferably arranged at uniform intervals along the circumferential direction of the support 7, the upper ends of the support rods 6 are fixed in the sidewall of the blasthole through barbs 5, a barrier net covered outside the support rods 6 provides a first heavy barrier protection for the filler in the blasthole, the support rods 6 themselves provide two barrier protection for the filler in the blasthole, in actual work, a suitable fixing device is selected according to the size of the blasthole, preferably, the diameter of the base 10 is slightly equal to that of the blasthole, the bending part of the barbs 5 extends in the direction away from the support rods 6, the slide 3 moves up and down to support or furl the barrier net through the support rods 6, and before blasting, when the blasthole filling and fixing device of the present invention is put into, the sliding base 3 moves upwards in a rotating mode to collect the blocking net through the support rod 6, the lower portion of the fixing device can conveniently enter a blast hole, meanwhile, the filling of the blast hole is facilitated, the upper end portion of the middle shaft 4 is connected with the horizontally arranged handle 1, it is required to be described that a through hole is preferably formed in the middle shaft 4 along the axial direction of the middle shaft, the lower end of the through hole extends to the bottom of the base 10, the upper end of the through hole extends to the top of the handle 1, the through hole is used for penetrating of a detonating tube leg wire and a detonator leg wire, the technical problems that the detonating tube leg wire is easy to crack and the detonator leg wire is easy to slide into the blast hole to cause unnecessary troubles or blind shots in the blast hole filling process are solved, when the fixing device is fixed, downward pressure is applied to the middle shaft 4 through the handle 1, the middle shaft 4 drives the insertion rod 9 to move downwards through the base 10 to be inserted into gunpowder, then, broken stone blocks are filled between the support base 7 and the base, barb 5 and blasthole lateral wall contact and insert wherein, then fill the silt and fill the crack between the rubble in the middle of to the rubble again, during the blasting, the utility model discloses blasthole fills fixing device and receives along the outside impact force of blasthole, and 5 atresss of barb continue to insert simultaneously and fix the arresting net edge at the blasthole lateral wall to blasthole lateral wall depths, and the arresting net is filled the blasthole intussuseption and is lived, makes the blasthole intussuseption pack the garrulous piece along the radial diffusion of blasthole, and extension blasting formation gas is in the blasthole internal existence time, makes the country rock produce the crack in great range, reaches better blasting effect, and avoids the blasthole intussuseption to fill and flies out everywhere and splash along the blasthole.

As an optional design, the preferable loop bar 2 comprises a grab handle 2.1, a loop bar body 2.2 and a bearing 2.3, the loop bar body 2.2 is in threaded connection with the middle shaft 4, the grab handle 2.1 is connected to the upper end of the loop bar body 2.2, the bearing 2.3 is sleeved at the lower end of the loop bar body 2.2, the loop bar body 2.2 is in rotational connection with the bearing 2.3, the bearing 2.3 is detachably connected with the top of the sliding seat 3 through a bearing seat, the loop bar body 2.2 is moved up and down in a rotating mode through the grab handle 2.1, and the sliding seat 3 is driven to move in a direction far away from or close to the support 7 along the middle shaft 4 through the bearing seat when the loop bar body 2.2 is moved up and.

The utility model discloses the working process is as follows:

firstly, a base 10 is placed at a blasthole opening, downward pressure is applied to a middle shaft 4 through a handle 1, the middle shaft 4 drives an inserted rod 9 to move downwards through the base 10 and be inserted into gunpowder, crushed stone blocks are filled between a support 7 and the base 10, then a loop bar 2 is moved downwards in a rotating mode through a sliding seat 3 to enable a support rod 6 to rotate outwards to prop open a blocking net, a barb 5 is contacted with and inserted into the side wall of the blasthole, sand and soil are filled in the crushed stone to fill gaps among the crushed stone, during blasting, the blasthole filling and fixing device of the utility model receives outward impact force along the blasthole, the barb 5 is continuously inserted into the deep part of the side wall of the blasthole under the stress, the edge of the blocking net is fixed on the side wall of the blasthole, the blocking net fills and holds the blasthole, the crushed stone blocks filled in the blasthole are diffused along the radial direction of the blasthole, the time of blasting generated gas in the blasthole is prolonged, surrounding rock, and the filling in the blast hole is prevented from flying around along the blast hole.

The above description is only the application embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and the right scope of the present invention cannot be limited thereby, and any equivalent changes made according to the technical solution of the present invention should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides a molybdenum ore strip blasting big gun hole fills fixing device which characterized by: the middle shaft is vertically arranged, external threads are arranged on the outer circular surface of the upper end of the middle shaft, a polished rod is arranged on the outer circular surface of the lower end of the middle shaft, a coaxially arranged sleeve rod is sleeved on the upper end of the middle shaft, the sleeve rod is connected with the middle shaft through threads, the sliding seat, the support and the base are sleeved at the lower end of the middle shaft from top to bottom in a spaced manner, the top of the sliding seat is tightly contacted with the lower end part of the sleeve rod, a plurality of obliquely arranged support rods are arranged between the sliding seat and the support, the lower end part of each support rod is respectively hinged with the support through a horizontally arranged hinge shaft, a rod body in the middle of each support rod is respectively inserted into a waist-shaped clamping groove corresponding to the edge of the sliding seat, an outward extending barb is arranged at the upper end part of each support rod, a blocking net extending towards the support rods is connected on the support, and the blocking net is covered outside the support rods, the supporting seat is fixedly connected with the base through a plurality of vertically arranged supporting legs, the base is fixedly connected with the lower end part of the center shaft, a plurality of inserting rods are arranged at the bottom of the base at intervals along the circumferential direction of the base, the inserting rods extend towards the direction far away from the center shaft, the sleeve rods rotate up and down to drive the sliding seat to move towards the direction far away from or close to the supporting seat, and the sliding seat moves to drive each supporting rod to rotate around the corresponding hinged shaft to open or close the barrier net.

2. The molybdenum ore open blasting blasthole filling and fixing device as claimed in claim 1, which is characterized in that: the diameter of the support is smaller than that of the base, and the diameter of the sliding seat is larger than that of the support.

3. The molybdenum ore open blasting blasthole filling and fixing device as claimed in claim 2, which is characterized in that: at least three support rods are arranged along the circumferential direction of the support at intervals.

4. The molybdenum ore open blasting blasthole filling and fixing device as claimed in claim 3, wherein: the loop bar includes grab handle, loop bar body and bearing, through threaded connection between loop bar body and the axis, is connected with the grab handle in the upper end of loop bar body, establishes the bearing at the lower pot head of loop bar body, rotates between loop bar body and the bearing to be connected, and the bearing passes through the bearing frame and can dismantle with the slide top and be connected, makes the loop bar body rotatory from top to bottom through the grab handle, moves along the axial direction of keeping away from or being close to the support through bearing frame drive slide when the loop bar body is rotatory from top to bottom.

5. The molybdenum ore open blasting blasthole filling and fixing device as claimed in claim 4, wherein: the curved portion of the barb extends away from the strut.

6. The molybdenum ore open blasting blasthole filling and fixing device as claimed in claim 4, wherein: the upper end part of the middle shaft is connected with a horizontally arranged handle.

Images