CN112833724A - Short house flyrock protector during control blasting - Google Patents

Abstract

The invention relates to the technical field of controlled blasting, in particular to a flying stone protection device for a short house during controlled blasting. The invention aims to provide a flying stone protection device for a short house during controlled blasting, and aims to solve the problem that the short house cannot be effectively protected in the existing controlled blasting. The invention discloses a low house flying stone protection device in blasting control, which comprises a machine body shell, a machine body cavity and a telescopic cleaning mechanism, wherein the machine body cavity is arranged in the machine body shell and is provided with an opening at the upper side, the telescopic cleaning mechanism is arranged in the machine body cavity, the telescopic cleaning mechanism comprises a fixed box and a dust cavity, the fixed box is arranged on the inner wall of the machine body shell, and the dust cavity is arranged in the fixed box and is provided with an upward opening.

Description

Short house flyrock protector during control blasting

Technical Field

The invention relates to the technical field of controlled blasting, in particular to a flying stone protection device for a short house during controlled blasting.

Background

The controlled blasting is a blasting method in which the blasting energy and the blasting scale are strictly controlled by certain technical measures so that the sound, vibration, flyrock, dumping direction, damage area and slump loss range of the broken materials are within specified limits. The flying stones are one of the most serious potential accident factors in the open blasting engineering, are one of the main causes of damage to personnel, equipment, structures and buildings, and pose serious threats to the life and property safety of people. When blasting, people can hide in the shelter, and the low houses near the blasted high building are exposed in the open place and are easily impacted by flyrock generated by blasting to cause immeasurable economic loss, and moreover, the flyrock and dust sputtered after blasting are also extremely difficult to clean.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a flying stone protective device for a low house during controlled blasting so as to solve the problem that the low house cannot be effectively protected in the existing controlled blasting.

The technical scheme of the invention is to control the protective device for the flying stones in the short house during blasting.

The low house flying stone protective device used for controlling blasting and manufactured by the technical scheme of the invention comprises a machine body shell, a machine body cavity which is arranged in the machine body shell and has an opening at the upper side, and a telescopic cleaning mechanism arranged in the machine body cavity, wherein the telescopic cleaning mechanism comprises a fixed box arranged on the inner wall of the machine body shell, a dust cavity which is arranged in the fixed box and has an upward opening, a supporting plate arranged on the fixed box, a horizontal electric push rod arranged on the supporting plate, a telescopic box which is arranged on one side of the fixed box and is in sliding connection with the fixed box, a driving push plate which is arranged on the telescopic box and is in sliding connection with the fixed box, a blocking cavity arranged at the lower side of the dust cavity, and a blocking block which is arranged on the driving push plate and is positioned in the blocking cavity, the device comprises a fixed box, a stop block, a communicating port, a dropping port and a force storage spring, wherein the stop block is arranged on one side of the stop block and is in sliding connection with the fixed box, the communicating port is arranged on the stop block, the fixed box is provided with the dropping port which is positioned on two sides of the communicating port, the force storage spring is arranged on one side of the stop block and is fixedly connected with the fixed box, after the horizontal electric push rod is started, the telescopic box slides to one side under the driving of the horizontal electric push rod so as to drive the driving push plate to slide to one side and drive the stop block to slide to one side of the stop block under the action of the force storage spring, the dropping port is blocked by the stop block plate, and therefore sand in a dust cavity is prevented from dropping through the dropping port, one side of the machine body shell is provided with a telescopic protection mechanism, and the telescopic protection mechanism comprises a fixed protection box arranged on one side of the, the utility model discloses a safety protection box, including engine body shell, engine body shell upside, fixed establishment, engine body shell downside is equipped with fixed establishment, fixed establishment is including setting up the support frame of engine body shell downside, the engine body shell upside is equipped with pushes away grey mechanism, it is in to push away grey mechanism including setting up the engine body shell upside just is located the ejection box of fixed protection box upside.

Furthermore, the telescopic cleaning mechanism also comprises a driven push plate which is arranged in the dust cavity and is connected with the fixed box in a sliding way, an air box which is arranged in the machine body cavity, a driving air cavity which is arranged in the air box, a driven air cavity which is arranged at the other side of the driving air cavity, a movable push plate which is arranged in the driving air cavity and is fixedly connected with the telescopic box, the movable push plate is connected with the air box in a sliding way, a vent hole which is arranged on the air box, a sliding push plate which is arranged in the driven air cavity and is connected with the air box in a sliding way, a support rod which is arranged on the sliding push plate and is connected with the air box in a sliding way, and a connecting rod which is arranged on the support rod and is fixedly connected with the driven push plate, when the driving push plate moves to one side along with the telescopic box, the movable push plate moves to the same side along with the telescopic box at the same time, thereby utilize the removal push pedal will the air in the initiative air cavity passes through the blow vent pushes away from the air cavity, the slip push pedal is to the opposite side motion under the promotion of air to the drive the bracing piece is to the opposite side motion, thereby drives the connecting rod is to the opposite side motion, thereby drives from the push pedal to the opposite side motion, works as when the initiative push pedal resets, from the push pedal resets.

Furthermore, flexible clearance mechanism still includes the setting and is in organism shell downside collection box, set up in the collection box and the ascending recovery chamber of opening, set up on the organism shell and with retrieve the slope opening that the chamber link up, through the sand that drops mouthful falls can pass through the slope opening falls retrieve the intracavity, wait for the staff to clear up.

Furthermore, the telescopic protection mechanism also comprises a fixed protection cavity arranged in the fixed protection box, a sliding protection box arranged in the fixed protection cavity and slidably connected with the fixed protection box, a retractable protection box arranged in the sliding protection box and slidably connected with the sliding protection box, a vertical electric push rod arranged in the fixed protection cavity and fixedly connected with the retractable protection box, a cleaning box arranged on the lower side of the retractable protection box, a cleaning cavity arranged in the cleaning box and provided with an upward opening, the retractable protection box can be driven to move downwards by starting the vertical electric push rod so as to drive the sliding protection box to move downwards, and the cleaning box is driven to move downwards, so that a protection barrier is formed by the fixed protection box, the sliding protection box and the retractable protection box, the broken stones impacting the protective barrier fall into the cleaning cavity and wait for recovery of workers.

Furthermore, flexible protection machanism still guarantees to set up fixed guard box, the slip guard box with fall the board of making an uproar on the shrink guard box, through fall the board diffusion that the board can the noise reduction of making an uproar.

Further, fixed establishment is still including setting up eight group's topography adaptation mechanisms that support frame downside and horizontal array were arranged, topography adaptation mechanism is including setting up location case on the support frame sets up location incasement and the decurrent location chamber of opening set up the location intracavity and with location case sliding connection's locating piece sets up on the locating piece and with location case fixed connection's buffer spring, through eight groups topography adaptation mechanism can make the organism steadily place on each formula roof.

Further, it is in still including setting up to push away grey mechanism rack on the expansion box sets up organism intracavity and rotate to be connected driving shaft on the engine body shell inner wall sets up on the driving shaft and with the gear that rack toothing connects sets up launch the incasement and one side open-ended launch the chamber, set up launch the intracavity and with the driven shaft that the driving shaft belt drive is connected sets up launch case one side and keep away from launch the clearance push pedal of chamber opening part, through the clearance push pedal can be in when fixed guard box resets will be located the dust rubble of fixed guard box upside pushes away and falls the clearance intracavity.

Further, push away grey mechanism still including setting up launch the intracavity and with the driven shaft gear pair is connected launch the axle, set up launch epaxial ejection sheave, set up launch the connecting band on the sheave, set up filter screen on the engine body shell sets up on the filter screen and with connecting band fixed connection's the ash pushing plate, set up push away on the ash plate and with launch incasement wall fixed connection's reset spring, work as when the expansion box is to one side motion, just through gear drive principle and belt transmission principle, thereby drive launch the axle and rotate, thereby will push away the ash plate to same one side pulling, work as when the expansion box resets, it is also in to push away the ash plate and reset under reset spring's the effect, thereby pass through it will to push away the ash plate will push away on the rubble drops.

By adopting the technical scheme, the invention has the following beneficial effects:

in the scheme, through two telescopic structures, the motor is used for driving and a protective barrier is formed outside the short building before blasting, so that the flying stones generated during blasting are prevented from impacting the short building to cause serious losses such as casualties or house structure damage, and the like. Moreover, the invention can also collect and gather the sputtered gravel dust, is convenient for the workers to clean before blasting, saves time and labor, and is safe and effective.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of the construction of the low building flyrock guard of the present invention for controlling blasting;

FIG. 2 is a schematic view of the structure in the direction A-A in FIG. 1;

FIG. 3 is an enlarged schematic view of the structure B of FIG. 1;

fig. 4 is an enlarged schematic view of the structure C of fig. 2.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that as used in the following description, the terms "front," "back," "left," "right," "upper," and "lower" refer to directions in the drawings, and the terms "bottom" and "top," "inner," and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1 to 4, the device for protecting low building flying stones during blasting control comprises a machine body shell 11, a machine body cavity 12 which is arranged in the machine body shell 11 and has an opening at the upper side, a telescopic cleaning mechanism 901 which is arranged in the machine body cavity 12, wherein the telescopic cleaning mechanism 901 comprises a fixed box 13 which is arranged on the inner wall of the machine body shell 11, a dust cavity 14 which is arranged in the fixed box 13 and has an upward opening, a supporting plate 15 which is arranged on the fixed box 13, a horizontal electric push rod 16 which is arranged on the supporting plate 15, a telescopic box 17 which is arranged on one side of the fixed box 13 and is slidably connected with the fixed box 13, the telescopic box 17 is driven by the horizontal electric push rod 16, a driving push plate 18 which is arranged on the telescopic box 17 and is slidably connected with the fixed box 13, a blocking cavity 20 which is arranged on the lower side of the dust cavity 14, and a blocking block 19 which is arranged on the driving push plate 18 and is positioned in the blocking cavity 20, a blocking plate 22 disposed on one side of the blocking block 19 and slidably connected to the fixed box 13, a communication port 23 disposed on the blocking plate 22, a drop port 21 disposed on the fixed box 13 and located on both sides of the communication port 23, and a power storage spring 24 disposed on one side of the blocking plate 22 and fixedly connected to the fixed box 13, wherein when the horizontal electric push rod 16 is activated, the telescopic box 17 slides to one side under the driving of the horizontal electric push rod 16, so as to drive the active push plate 18 to slide to one side, so as to drive the blocking block 19 to slide to the same side, so as to drive the blocking plate 22 to slide to one side of the blocking block 19 under the action of the power storage spring 24, and block the drop port 21 through the blocking plate 22, so as to prevent the sand in the dust chamber 14 from dropping through the drop port 21, and a telescopic protection mechanism 902 is disposed on one side of the machine body housing 11, telescopic protection mechanism 902 is including setting up the fixed guard box 33 of engine body shell 11 one side, engine body shell 11 downside is equipped with fixed establishment 903, fixed establishment 903 is including setting up the support frame 26 of engine body shell 11 downside, engine body shell 11 upside is equipped with pushes away grey mechanism 904, it is in including setting up to push away grey mechanism 904 engine body shell 11 upside and be located the ejection case 41 of fixed guard box 33 upside.

Referring to fig. 1, the telescopic cleaning mechanism 901 further includes a driven push plate 25 disposed in the dust chamber 14 and slidably connected to the fixed box 13, an air box 48 disposed in the body chamber 12, a driving air chamber 49 disposed in the air box 48, a driven air chamber 51 on the other side of the driving air chamber 49, a moving push plate 52 disposed in the driving air chamber 49 and fixedly connected to the telescopic box 17, the moving push plate 52 slidably connected to the air box 48, an air vent 50 disposed in the air box 48, a sliding push plate 53 disposed in the driven air chamber 51 and slidably connected to the air box 48, a support rod 54 disposed on the sliding push plate 53 and slidably connected to the air box 48, a connection rod 55 disposed on the support rod 54 and fixedly connected to the push plate driven 25, when the driving push plate 18 moves to one side along with the telescopic box 17, the moving push plate 52 moves to the same one side along with the telescopic box 17, so that the air in the driving air cavity 49 is pushed into the driven air cavity 51 through the air vent 50 by utilizing the moving push plate 52, the sliding push plate 53 moves to the other side under the pushing of the air, and the supporting rod 54 is driven to move to the other side, so that the connecting rod 55 is driven to move to the other side, and the driven push plate 25 is driven to move to the other side, and when the driving push plate 18 is reset, the driven push plate 25 is reset.

Referring to fig. 1, the telescopic cleaning mechanism 901 further includes a recycling box 27 disposed at a lower side of the machine body shell 11, a recycling cavity 28 disposed in the recycling box 27 and having an upward opening, and an inclined opening 60 disposed on the machine body shell 11 and penetrating the recycling cavity 28, wherein sand falling through the falling port 21 can fall into the recycling cavity 28 through the inclined opening 60 to wait for cleaning by a worker.

Referring to fig. 1 to 4, the retractable protection mechanism 902 further includes a fixed protection cavity 34 disposed in the fixed protection box 33, a sliding protection box 35 disposed in the fixed protection cavity 34 and slidably connected to the fixed protection box 33, a retractable protection box 36 disposed in the sliding protection box 35 and slidably connected to the sliding protection box 35, a vertical electric push rod 37 disposed in the fixed protection cavity 34 and fixedly connected to the retractable protection box 36, a cleaning box 38 disposed under the retractable protection box 36, a cleaning cavity 40 disposed in the cleaning box 38 and having an upward opening, and by activating the vertical electric push rod 37, the retractable protection box 36 can be driven to move downward, so as to drive the sliding protection box 35 to move downward, so as to drive the cleaning box 38 to move downward, so as to utilize the fixed protection box 33, The sliding guard box 35 and the retracting guard box 36 form a protective barrier, and the crushed stones impacting the protective barrier fall into the cleaning cavity 40 and wait for recovery by workers.

Referring to fig. 4, the telescopic guard mechanism 902 also secures a noise reduction plate 39 provided on the fixed guard box 33, the sliding guard box 35, and the retracting guard box 36, and the noise diffusion can be reduced by the noise reduction plate 39.

Referring to fig. 2, the fixing mechanism 903 further includes eight sets of terrain adapting mechanisms 61 arranged on the lower side of the supporting frame 26 and arranged in a horizontal array, each terrain adapting mechanism 61 includes a positioning box 29 arranged on the supporting frame 26, a positioning cavity 30 arranged in the positioning box 29 and having a downward opening, a positioning block 31 arranged in the positioning cavity 30 and slidably connected to the positioning box 29, and a buffer spring 32 arranged on the positioning block 31 and fixedly connected to the positioning box 29, and the eight sets of terrain adapting mechanisms 61 can enable the machine body to be stably placed on various roofs.

Referring to fig. 1 to 4, the dust pushing mechanism 904 further includes a rack 56 disposed on the telescopic box 17, a driving shaft 57 rotatably connected to the inner wall of the engine body housing 11 in the engine body cavity 12, a gear 58 disposed on the driving shaft 57 and engaged with the rack 56, a catapult cavity 43 with an opening on one side, a driven shaft 59 disposed in the catapult cavity 43 and connected to the driving shaft 57 in a belt transmission manner, and a cleaning push plate 42 disposed at the opening of the catapult cavity 43 and away from one side of the catapult box 41, through which the cleaning push plate 42 can push away the dust and crushed stone on the upper side of the fixed protection box 33 into the cleaning cavity 40 when the fixed protection box 33 is reset.

Referring to fig. 2, the ash pushing mechanism 904 further includes an ejection shaft 44 disposed in the ejection cavity 43 and connected to the driven shaft 59 via a gear pair, an ejection sheave 45 disposed on the ejection shaft 44, a connecting belt 46 disposed on the ejection sheave 45, a filter screen 63 disposed on the machine body housing 11, an ash pushing plate 62 disposed on the filter screen 63 and fixedly connected to the connecting belt 46, a return spring 47 disposed on the ash pushing plate 62 and fixedly connected to the inner wall of the ejection box 41, when the telescopic box 17 moves to one side, the telescopic box can move along the direction of the moving object through a gear transmission principle and a belt transmission principle, thereby driving the ejection shaft 44 to rotate, thereby pulling the dust pushing plate 62 to the same side, when the telescopic box 17 is reset, the dust pushing plate 62 is also reset under the action of the reset spring 47, so that the broken stones on the filter screen 63 are pushed down through the dust pushing plate 62.

The working principle is as follows:

the machine body is placed on a roof, if the roof is flat, the machine body can be placed on the flat roof through the space between the eight groups of terrain adaptation mechanisms 61, if the roof is uneven, namely the roof is a pointed tile house, the positioning blocks 31 on the two sides can be popped out under the action of the buffer springs 32, so that the eight groups of terrain adaptation mechanisms 61 wrap the roof, and the machine body is fixed; before blasting, the horizontal electric push rod 16 is started, so that the telescopic box 17 is driven to move to one side, the driving push plate 18 is driven to move to the same side, the blocking block 19 is driven to move to the same side, the blocking plate 22 loses blocking, the telescopic box can be ejected to one side under the action of the power storage spring 24, the communication port 23 moves to a non-horizontal plane with the dropping port 21 and the inclined opening 60, namely the dropping port 21 is blocked by the blocking plate 22, meanwhile, the telescopic box 17 moves to one side to drive the moving push plate 52 to move to one side, so that air in the driving air cavity 49 is pushed into the driven air cavity 51, the sliding push plate 53 is driven to move to the other side, the support rod 54 is driven to move to the other side, the driven push plate 25 is driven to move to the other side, and meanwhile, when the telescopic box 17 moves to one side, the rack 56 is driven to move to one side, through the meshing transmission principle, the driving shaft 57 is driven to rotate, through the belt transmission principle and the gear transmission principle, the ejection shaft 44 is driven to rotate, the ejection sheave 45 is wound, the ash pushing plate 62 is pulled to one side, meanwhile, the reset spring 47 is gradually compressed while the ash pushing plate 62 is pulled to one side, when the telescopic box 17 moves to the outside of the house, the horizontal electric push rod 16 is closed, the vertical electric push rod 37 is started, the contraction protection box 36 is pushed to move downwards, the sliding protection box 35 is pushed to move downwards, a protection wall is formed by the fixed protection box 33, the sliding protection box 35 and the contraction protection box 36, after blasting starts, broken stones can fall on the protection wall formed by the fixed protection box 33, the sliding protection box 35 and the contraction protection box 36, and can fall due to gravity, thereby falling into the cleaning chamber 40, at the same time, dust and crushed stone may fall on the upper side surfaces of the fixed protection box 33 and the telescopic box 17, and part of crushed stone falls on the upper side of the body shell 11 and is filtered by the filter screen 63, thereby falling into the horizontal electric push rod 16, namely falling between the driving push plate 18 and the driven push plate 25, after the blasting is completed, the vertical electric push rod 37 and the horizontal electric push rod 16 are driven to reset each part, when the fixed protection box 33 and the telescopic box 17 are reset, the dust and crushed stone on the upper side surfaces of the fixed protection box 33 and the telescopic box 17 can be pushed down by the cleaning push plate 42, the crushed stone can fall into the cleaning chamber 40, at the same time, when the telescopic box 17 is reset, the driving push plate 18 and the driven push plate 25 simultaneously move toward the direction close to the falling port 21, namely, the driving push plate 18 and the driven push plate 25 also reset, and the falling communication port 23 moves to and returns to the falling, The inclined opening 60 is located on the same vertical plane, so that dust in the dust chamber 14 is pushed to fall into the inclined opening 60 through the falling opening 21 by the driving push plate 18 and the driven push plate 25, and finally falls into the recovery chamber 28, and meanwhile, the dust pushing plate 62 is reset under the action of the reset spring 47, and broken stones on the filter screen 63 can be pushed to fall.

The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.

Claims (9)

1. A flying stone protection device for low houses during controlled blasting comprises a machine body shell (11), a machine body cavity (12) which is arranged in the machine body shell (11) and is provided with an opening at the upper side, a telescopic cleaning mechanism (901) which is arranged in the machine body cavity (12), one side of the machine body shell (11) is provided with a telescopic protection mechanism (902), the telescopic protection mechanism (902) comprises a fixed protection box (33) arranged on one side of the machine body shell (11), a fixing mechanism (903) is arranged on the lower side of the machine body shell (11), the fixing mechanism (903) comprises a supporting frame (26) arranged on the lower side of the machine body shell (11), organism shell (11) upside is equipped with pushes away grey mechanism (904), it is in to push away grey mechanism (904) including setting up organism shell (11) upside and be located ejection box (41) of fixed guard box (33) upside.

2. A device for controlling the flying stones in a short house during blasting according to claim 1, characterized in that: the telescopic cleaning mechanism (901) comprises a fixed box (13) arranged on the inner wall of the machine body shell (11), a dust cavity (14) which is arranged in the fixed box (13) and has an upward opening, a supporting plate (15) arranged on the fixed box (13), a horizontal electric push rod (16) arranged on the supporting plate (15), a telescopic box (17) which is arranged on one side of the fixed box (13) and is in sliding connection with the fixed box (13), the telescopic box (17) is driven by the horizontal electric push rod (16), a driving push plate (18) which is arranged on the telescopic box (17) and is in sliding connection with the fixed box (13), a blocking cavity (20) which is arranged on the lower side of the dust cavity (14), a blocking block (19) which is arranged on the driving push plate (18) and is positioned in the blocking cavity (20), and a blocking plate (22) which is arranged on one side of the blocking block (19) and is in sliding connection with the fixed box (13), the anti-dropping device is characterized in that a communication port (23) is formed in the blocking plate (22), dropping ports (21) located on two sides of the communication port (23) are formed in the fixed box (13), and a force storage spring (24) is arranged on one side of the blocking plate (22) and fixedly connected with the fixed box (13).

3. A device for controlling the flying stones in a short house during blasting according to claim 1, characterized in that: the telescopic cleaning mechanism (901) further comprises a driven push plate (25) which is arranged in the dust cavity (14) and is in sliding connection with the fixed box (13), an air box (48) which is arranged in the machine body cavity (12), a driving air cavity (49) which is arranged in the air box (48), a driven air cavity (51) which is arranged at the other side of the driving air cavity (49), a moving push plate (52) which is arranged in the driving air cavity (49) and is fixedly connected with the telescopic box (17), the moving push plate (52) is in sliding connection with the air box (48), an air vent (50) which is arranged on the air box (48), a sliding push plate (53) which is arranged in the driven air cavity (51) and is in sliding connection with the air box (48), and a supporting rod (54) which is arranged on the sliding push plate (53) and is in sliding connection with the air box (48), and the connecting rod (55) is arranged on the supporting rod (54) and is fixedly connected with the driven push plate (25).

4. A device for controlling the flying stones in a short house during blasting according to claim 1, characterized in that: the machine body shell structure is characterized in that a recovery box (27) on the lower side of the machine body shell (11) is provided, a recovery cavity (28) with an upward opening is formed in the recovery box (27), and an inclined opening (60) communicated with the recovery cavity (28) is formed in the machine body shell (11).

5. A device for controlling the flying stones in a short house during blasting according to claim 1, characterized in that: telescopic protection mechanism (902) is still including setting up fixed protection chamber (34) in fixed protection case (33), set up in fixed protection chamber (34) and with fixed protection case (33) sliding connection's slip protection case (35), set up in slip protection case (35) and with slip protection case (35) sliding connection's shrink protection case (36), set up in fixed protection chamber (34) and with shrink protection case (36) fixed connection's vertical electric putter (37), the setting is in clearance case (38) of shrink protection case (36) downside sets up in clearance case (38) and the ascending clearance chamber (40) of opening.

6. The apparatus for controlling flying stones in a short house during blasting according to claim 5, wherein: the telescopic protection mechanism (902) further comprises a noise reduction plate (39) arranged on the fixed protection box (33), the sliding protection box (35) and the contraction protection box (36).

7. A device for controlling the flying stones in a short house during blasting according to claim 1, characterized in that: fixing mechanism (903) is still including setting up eight groups topography adaptation mechanisms (61) that support frame (26) downside and horizontal array were arranged, topography adaptation mechanism (61) is including setting up locating box (29) on support frame (26), set up in locating box (29) and the decurrent location chamber (30) of opening set up in locating cavity (30) and with locating box (29) sliding connection's locating piece (31), set up locating piece (31) go up and with locating box (29) fixed connection's buffer spring (32).

8. A device for controlling the flying stones in a short house during blasting according to claim 1, characterized in that: push away grey mechanism (904) still including setting up rack (56) on expansion box (17) sets up in organism chamber (12) and rotate the connection and be in driving shaft (57) on organism shell (11) inner wall sets up on driving shaft (57) and with gear (58) that rack (56) meshing is connected set up in launch in case (41) and one side open-ended launch chamber (43), set up launch in chamber (43) and with driven shaft (59) that driving shaft (57) belt drive is connected set up launch case (41) one side and keep away from launch clearance push pedal (42) of chamber (43) opening part.

9. A device for controlling the flying stones in a short house during blasting according to claim 8, characterized in that: push away grey mechanism (904) still including set up launch in chamber (43) and with driven shaft (59) gear (58) pair connection launch axle (44), set up launch sheave (45) on axle (44), set up and be in launch connecting band (46) on sheave (45), set up filter screen (63) on engine body shell (11), set up on filter screen (63) and with connecting band (46) fixed connection's push away hawk (62), set up push away hawk (62) go up and with launch case (41) inner wall fixed connection's reset spring (47).

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