A subway construction blast vibration measuring instrument

Abstract

The application belongs to the field of blasting vibration measuring instrument, and particularly relates to a subway construction blasting vibration measuring instrument, which comprises a field acquisition recorder, heat dissipation grooves are formed on the two sides of the field acquisition recorder, a placing groove is formed on the side of the field acquisition recorder close to the heat dissipation grooves, a protective cover in the shape of inverted 'U' is arranged on the top of the field acquisition recorder, a receiving groove is formed in the protective cover, and a positioning block is slidably connected in the receiving groove. The protective cover is quickly fixed on the field acquisition recorder, the protective cover shields the gravel, the function of protecting the field acquisition recorder is achieved, the heat dissipation grooves on the two sides of the field acquisition recorder can ventilate and dissipate heat, the temperature in the field acquisition recorder is reduced, and the field acquisition recorder is convenient for long-time outdoor use.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of blasting vibration meters, in particular to a blasting vibration meter for subway construction. BACKGROUND

[0002] The blasting vibration meter is used in subway construction to monitor blasting. The blasting vibration meter is a portable special device for collecting, recording and storing long-time field signals of blasting vibration and impact. The complete instrument is composed of a field collection recorder, a speed or acceleration sensor and analysis processing software.

[0003] A blasting vibration meter applied to soft soil is disclosed in a Chinese patent with the publication number CN109916749B. The technical solution points are as follows: the blasting vibration meter cannot detect low-frequency signals, the energy loss of the spring in use is solved, and the phenomenon of reduced elasticity of the spring in use is further solved, so that the elastic element inside the blasting vibration meter always maintains a better state.

[0004] The field collection recorder of the blasting vibration meter needs to be used in the blasting field. Subway construction is mostly carried out outdoors. When blasting is carried out in hot weather, the field collection recorder of the blasting vibration meter does not have a good heat dissipation device and a protection device, so that the field collection recorder of the blasting vibration meter is easily damaged by the stones produced during blasting.

[0005] Therefore, the application provides a blasting vibration meter for subway construction. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical scheme adopted by the present application to solve its technical problems is: the metro construction blasting vibration measuring instrument comprises a field acquisition recorder, heat dissipation grooves are formed on the two sides of the field acquisition recorder, a placing groove is formed on the side of the field acquisition recorder close to the heat dissipation grooves, a reverse U-shaped protective cover is arranged on the top of the field acquisition recorder, a receiving groove is formed in the protective cover, a positioning block is slidably connected in the receiving groove, a first spring is fixedly installed at one end of the positioning block, the other end of the first spring is fixedly connected with the receiving groove, and rotating balls are rotatably connected on the two sides of the positioning block; the field acquisition recorder of the blasting vibration measuring instrument needs to be used in the blasting field, metro construction is mostly carried out outdoors, when blasting is carried out in hot weather, the field acquisition recorder of the blasting vibration measuring instrument does not have a good heat dissipation device and a protective device, so that the field acquisition recorder of the blasting vibration measuring instrument is easily injured by the broken stones generated during blasting, in the working process of the present application, the protective cover is moved towards the field acquisition recorder, the positioning block at one end of the protective cover slides into the receiving box, the rotating balls on the two sides of the positioning block rotate and slide in the placing groove, and the positioning block slides in the receiving groove through the first spring, so that the positioning block can be adapted to field acquisition recorders of different sizes, the protective cover can be quickly fixed on the field acquisition recorder, the protective cover can shield the broken stones, the function of protecting the field acquisition recorder is realized, and the heat dissipation grooves on the two sides of the field acquisition recorder can ventilate and dissipate heat, so that the temperature in the field acquisition recorder is reduced, and the field acquisition recorder can be conveniently used outdoors for a long time.

[0008] Preferably, the positioning block is made of magnet material, and a metal block is fixedly installed on the inner wall of the placing groove; in the working process, after the positioning block is placed in the placing groove, the positioning block is magnetically attracted and fixed with the metal block, so that the protective cover is further fixed.

[0009] Preferably, an arc-shaped guide plate is fixedly installed on the top of the field acquisition recorder, a groove is formed on one side of the guide plate, and a guide wheel is rotatably connected in the groove; in the working process, when the protective cover is installed, in order to avoid the positioning block being too long to be placed in the placing groove, the positioning block first contacts the arc-shaped guide plate, the guide plate extrudes the positioning block into the receiving groove, so that the length of the positioning block matches the placing groove, and the guide wheel in the groove guides the positioning block into the placing groove, so that the positioning block is installed.

[0010] Preferably, the inner wall of the heat dissipation groove is fixedly installed with a dust screen, the inside of the heat dissipation groove is slidably connected with a sliding ball, one side of the sliding ball is located in the placing groove, the inner wall of the heat dissipation groove is fixedly installed with a second spring, the other end of the second spring is fixedly connected with the sliding ball, the surface of the sliding ball is fixedly installed with a connecting rope, and the surface of the connecting rope is fixedly sleeved with a cleaning rod.

[0011] Preferably, the side of the protective cover is fixedly installed with a protective screen, one side of the protective screen is fixedly installed with a connecting plate, the other end of the connecting plate is fixedly installed with a motor, the other end of the motor is fixedly installed with an output rod, one end of the output rod is fixedly installed with a fan blade, and the fan blade and the heat dissipation groove are on the same straight line.

[0012] Preferably, the inside of the protective cover is fixedly installed with a rectangular box, the inside of the rectangular box is provided with dry ice, one side of the rectangular box close to the fan blade is provided with a hole, the other side of the rectangular box is provided with a rectangular groove, the inside of the rectangular groove is fixedly installed with an elastic rope, and the other end of the elastic rope is fixedly installed with a waterproof cloth.

[0013] Preferably, the top of the rectangular tank is rotatably connected with a rotating plate through a torsion spring, and the rotating plate is inclined; in operation, when the dry ice is put into the rectangular tank, it will first pass through the rotating plate, and the inclined rotating plate can buffer and facilitate the introduction of the dry ice into the rectangular tank; after the dry ice is put into the rectangular tank, the rotating plate will reset through the torsion spring, thereby closing the top of the rectangular tank, reducing the leakage of the cold air of the dry ice through the top of the rectangular tank, and improving the sealing performance of the rectangular tank.

[0014] Preferably, the inside of the protective cover is fixedly provided with a connecting rod, the bottom of the connecting rod is rotatably connected with an impact rod through a torsion spring, the bottom of the impact rod is semicircular, the surface of the output rod is fixedly provided with a sleeve rod, one end of the sleeve rod is fixedly provided with a rope, and the other end of the rope is fixedly provided with a ball; in operation, when the output rod of the motor starts to rotate, the sleeve rod, the rope and the ball will rotate together, so that the ball impacts the impact rod at the bottom of the connecting rod, and the semicircular end of the impact rod impacts the protective net, so that the protective net vibrates, thereby shaking off the dust on the protective net, facilitating the air suction of the fan blade and preventing the blocking of the protective net, and the ball made of rubber buffers and protects the impact rod.

[0015] Preferably, the bottom of the rectangular tank is fixedly provided with a sponge, and the bottom of the rectangular tank is fixedly provided with a flow guide pipe, and the port of the flow guide pipe is communicated with the sponge; in operation, when the dry ice is put into the rectangular tank, the dry ice will fall on the sponge inside the rectangular tank, thereby impacting the sponge, and the water melted from the dry ice will be absorbed by the sponge, so that when the dry ice is put into the rectangular tank again, the water in the sponge will be squeezed into the flow guide pipe and sprayed out, and the sprayed water can wash and clean the protective net, thereby further cleaning the protective net and facilitating the use of the protective net.

[0016] Preferably, the inside of the flow guide pipe is fixedly provided with a filter screen; in operation, the filter screen can effectively reduce the entry of dust and sundries into the filter screen, and when the water flow is sprayed out through the flow guide pipe, the filter screen can disperse the water flow, thereby increasing the spraying area.

[0017] The beneficial effects of the present application are as follows:

[0018] 1. This invention provides a vibration meter for blasting during subway construction. By bringing the protective cover closer to the on-site data acquisition and recording device, a positioning block at one end of the protective cover slides into the storage box. The rotating balls and placement slots on both sides of the positioning block rotate, allowing it to slide within the placement slot. The positioning block slides within the storage slot via a first spring, thus adapting to data acquisition and recording devices of different sizes. This enables the protective cover to be quickly fixed to the on-site data acquisition and recording device, shielding it from debris and protecting the device. Furthermore, the heat dissipation slots on both sides of the on-site data acquisition and recording device provide ventilation and heat dissipation, reducing the internal temperature and facilitating long-term outdoor use.

[0019] 2. This invention provides a vibration meter for blasting in subway construction. When the rotating ball slides in the placement groove, it will squeeze the sliding ball in the placement groove. After being squeezed, the sliding ball, along with the second spring, slides towards the heat dissipation groove. This causes the connecting rope to be de-tensioned. After the rotating ball slides past the sliding ball, the second spring restores its elasticity, causing the sliding ball to return to its original position. This causes the sliding ball and the connecting rope to return to a tensioned state. At this time, the connecting rope will cause the cleaning rod to vibrate violently, thereby causing the cleaning rod to continuously beat the dustproof net, dislodging the dust and debris on the dustproof net, reducing dust clogging the dustproof net, and facilitating the normal use of the dustproof net. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a three-dimensional schematic diagram of Embodiment 1 of the present invention;

[0023] Figure 2 This is a schematic diagram of the on-site data acquisition and recording device of the present invention;

[0024] Figure 3 This is a partial structural schematic diagram of the protective cover of the present invention;

[0025] Figure 4 This is the present invention. Figure 2 Enlarged view of point A in the middle;

[0026] Figure 5 This is a partial structural schematic diagram of the guide plate of the present invention;

[0027] Figure 6 is a schematic view of a partial structure of the positioning block of the present application;

[0028] Figure 7 is a schematic view of a partial structure of the positioning block of the present application; Figure 6 is an enlarged view of B in the present application;

[0029] Figure 8 is an enlarged view of C in the present application; Figure 6 is an enlarged view of C in the present application;

[0030] Figure 9 is a schematic view of a partial structure of the rectangular box of the present application;

[0031] Figure 10 is a schematic view of a partial structure of the guide pipe in the second embodiment;

[0032] In the figure: 1, field acquisition recorder; 2, heat dissipation groove; 3, placement groove; 4, protective cover; 5, storage groove; 6, positioning block; 7, first spring; 8, rotating ball; 9, guide plate; 10, groove; 11, guide wheel; 12, metal block; 13, dustproof net; 14, sliding ball; 15, second spring; 16, connecting rope; 17, cleaning rod; 18, protective net; 19, connecting plate; 20, motor; 21, output rod; 22, fan blade; 23, rectangular box; 24, dry ice; 25, rectangular groove; 26, waterproof cloth; 27, elastic rope; 28, rotating plate; 29, connecting rod; 30, impact rod; 31, sleeve rod; 32, rope; 33, ball; 34, sponge; 35, guide pipe; 36, filter screen. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in combination with specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0034] Embodiment one:

[0035] Please refer to Figures 1-6As shown, the metro construction blasting vibration measuring instrument comprises a field collection recorder 1, heat dissipation grooves 2 are formed on the two sides of the field collection recorder 1, a placing groove 3 is formed on the side of the field collection recorder 1 close to the heat dissipation grooves 2, a protective cover 4 in the shape of an inverted U is arranged on the top of the field collection recorder 1, a receiving groove 5 is formed in the protective cover 4, a positioning block 6 is slidably connected in the receiving groove 5, a first spring 7 is fixedly installed at one end of the positioning block 6, the other end of the first spring 7 is fixedly connected with the receiving groove 5, and rotating balls 8 are rotatably connected on the two sides of the positioning block 6. The field collection recorder 1 of the blasting vibration measuring instrument needs to be used in the blasting field, and the metro construction is usually carried out outdoors, so when the blasting is carried out in hot weather, the field collection recorder 1 of the blasting vibration measuring instrument does not have a good heat dissipation device and a protective device, which causes the field collection recorder 1 of the blasting vibration measuring instrument to be easily injured by the stones generated during the blasting. In the working process, the protective cover 4 is moved towards the field collection recorder 1, so that the positioning block 6 at one end of the protective cover 4 slides into the receiving box, the rotating balls 8 on the two sides of the positioning block 6 rotate and slide in the placing groove 3, and the positioning block 6 slides in the receiving groove 5 through the first spring 7. Therefore, the positioning block 6 can be adapted to field collection recorders of different sizes, so as to quickly fix the protective cover 4 on the field collection recorder 1, block the stones by the protective cover 4, and protect the field collection recorder 1. The heat dissipation grooves 2 on the two sides of the field collection recorder 1 can ventilate and dissipate heat, so as to reduce the temperature inside the field collection recorder 1 and facilitate the long-time outdoor use of the field collection recorder 1.

[0036] The positioning block 6 is made of a magnet material, and a metal block 12 is fixedly installed on the inner wall of the placing groove 3. In the working process, after the positioning block 6 is placed in the placing groove 3, the positioning block 6 is magnetically attracted and fixed with the metal block 12, so as to further fix the protective cover 4.

[0037] An arc-shaped guide plate 9 is fixedly installed on the top of the field collection recorder 1, a recess 10 is formed on one side of the guide plate 9, and a guide wheel 11 is rotatably connected in the recess 10. In the working process, when the protective cover 4 is installed, in order to avoid the positioning block 6 being too long to be placed in the placing groove 3, the positioning block 6 will first contact the arc-shaped guide plate 9, the guide plate 9 will extrude the positioning block 6 into the receiving groove 5, so that the length of the positioning block 6 matches the placing groove 3, and the guide wheel 11 in the recess 10 guides the positioning block 6 into the placing groove 3, so as to assist in installing the positioning block 6.

[0038] The inner wall of the heat dissipation groove 2 is fixedly installed with a dust screen 13, the inside of the heat dissipation groove 2 is slidably connected with a sliding ball 14, one side of the sliding ball 14 is in the placing groove 3, the inner wall of the heat dissipation groove 2 is fixedly installed with a second spring 15, the other end of the second spring 15 is fixedly connected with the sliding ball 14, the surface of the sliding ball 14 is fixedly installed with a connecting rope 16, and the surface of the connecting rope 16 is fixedly sleeved with a cleaning rod 17. When the rotating ball 8 slides in the placing groove 3, the sliding ball 14 in the placing groove 3 is pressed, the sliding ball 14 is pressed and slides to the direction of the heat dissipation groove 2 with the second spring 15, so that the connecting rope 16 is no longer in a taut state, the second spring 15 restores the elastic force and resets the sliding ball 14 after the rotating ball 8 slides through the sliding ball 14, so that the sliding ball 14 restores the taut state with the connecting rope 16 again, at this time, the connecting rope 16 drives the cleaning rod 17 to shake violently, so that the cleaning rod 17 constantly hits the dust screen 13, the dust and sundries on the dust screen 13 are discharged, the dust screen 13 is prevented from being blocked by dust, and the normal use of the dust screen 13 is facilitated.

[0039] As shown in Figures 3-9 The side of the protective cover 4 is fixedly installed with a protective screen 18, one side of the protective screen 18 is fixedly installed with a connecting plate 19, the other end of the connecting plate 19 is fixedly installed with a motor 20, the other end of the motor 20 is fixedly installed with an output rod 21, one end of the output rod 21 is fixedly installed with a fan blade 22, and the fan blade 22 and the heat dissipation groove 2 are on the same straight line. When the protective cover 4 covers the field acquisition recorder 1, the motor 20 in the protective cover 4 is started, the output rod 21 of the motor 20 drives the fan blade 22 to rotate, air outside the field acquisition recorder 1 is driven to enter the field acquisition recorder 1, and the hot air in the field acquisition recorder 1 is blown out, so that a better cooling effect is achieved, the internal temperature of the field acquisition recorder 1 is rapidly reduced, and the protective screen 18 blocks and reduces dust from being sucked into the fan.

[0040] The inside of the protective cover 4 is fixedly provided with a rectangular box 23, the inside of the rectangular box 23 is provided with dry ice 24, one side of the rectangular box 23 is provided with a hole, the other side of the rectangular box 23 is provided with a rectangular groove 25, the inside of the rectangular groove 25 is fixedly provided with an elastic rope 27, the other end of the elastic rope 27 is fixedly provided with a waterproof cloth 26; in operation, the dry ice 24 is placed in the rectangular box 23, so that the dry ice 24 is in front of the fan blade 22, when the fan blade 22 blows, the wind of the fan blade 22 passes through the dry ice 24, and then the cold air generated by the dry ice 24 is blown into the inside of the field collection recorder 1, so that a better cooling effect is achieved, and the wind of the fan blade 22 enters through the hole of the rectangular box 23 and is blown out through the rectangular groove 25, and when passing through the rectangular groove 25, the elastic rope 27 and the waterproof cloth 26 are blown, so that a gap is generated between the waterproof cloth 26 and the rectangular groove 25, and then the wind is blown out conveniently, and the waterproof cloth 26 also shields the water after the dry ice 24 melts, reduces the water blown into the field collection recorder 1 by the wind, and then improves the safety and reduces the probability of damage of the field collection recorder 1.

[0041] The top of the rectangular groove 25 is rotatably connected with a rotating plate 28 through a torsion spring, and the rotating plate 28 is inclined; in operation, when the dry ice 24 is placed in the rectangular box 23, it first enters through the rotating plate 28, and the inclined rotating plate 28 buffers and facilitates the introduction of the dry ice 24 into the rectangular box 23, and after the dry ice 24 is placed in the rectangular box 23, the rotating plate 28 is reset through the torsion spring, so as to close the top of the rectangular box 23, reduce the leakage of the cold air of the dry ice 24 through the top of the rectangular box 23, and improve the sealing performance of the rectangular box 23.

[0042] The inside of the protective cover 4 is fixedly provided with a connecting rod 29, the bottom of the connecting rod 29 is rotatably connected with an impact rod 30 through a torsion spring, the bottom of the impact rod 30 is semicircular, the surface of the output rod 21 is fixedly provided with a sleeve rod 31, one end of the sleeve rod 31 is fixedly provided with a rope 32, and the other end of the rope 32 is fixedly provided with a ball 33; in operation, when the output rod 21 of the motor 20 starts to rotate, the sleeve rod 31, the rope 32 and the ball 33 rotate together, so that the ball 33 impacts the impact rod 30 at the bottom of the connecting rod 29, so that the semicircular end of the impact rod 30 impacts the protective net 18, so that the protective net 18 vibrates, so that the dust on the protective net 18 is shaken off, so as to facilitate the air suction of the fan blade 22 and prevent the protective net 18 from being blocked, and the ball 33 made of rubber buffers and protects the impact rod 30.

[0043] The bottom of the rectangular box 23 is fixedly installed with a sponge 34, and the bottom of the rectangular box 23 is fixedly installed with a flow guide pipe 35, and the port of the flow guide pipe 35 is communicated with the sponge 34; in working, when the dry ice 24 is put into the rectangular box 23, the dry ice 24 will fall on the sponge 34 inside the rectangular box 23, so as to impact the sponge 34, and the water after the dry ice 24 is melted will be absorbed by the sponge 34, so that the water in the sponge 34 will be squeezed into the flow guide pipe 35 and sprayed out after the dry ice 24 impacting the sponge 34 again, the sprayed water plays a role of flushing and cleaning the protective net 18, and further cleans the protective net 18, so as to facilitate the use of the protective net 18.

[0044] Embodiment two:

[0045] As shown in Figure 10 , comparative embodiment one, wherein another embodiment of the application is:

[0046] The inside of the flow guide pipe 35 is fixedly installed with a filter screen 36; in working, by installing the filter screen 36 inside the flow guide pipe 35, dust and sundries can be effectively reduced from entering the filter screen 36, and the filter screen 36 can play a role of dispersing water flow when the water flow is sprayed out through the flow guide pipe 35, so as to increase the spraying area.

[0047] Working principle: by approaching the protective cover 4 to the field collection recorder 1, the positioning block 6 at one end of the protective cover 4 slides into the storage box, and the rotating ball 8 and the placing groove 3 on both sides of the positioning block 6 rotate to slide in the placing groove 3, and the positioning block 6 slides in the storage groove 5 through the first spring 7, so the positioning block 6 can adapt to different sizes of field collection recorders, and the protective cover 4 can be quickly fixed on the field collection recorder 1, so that the protective cover 4 can block the gravel and protect the field collection recorder 1, and the heat dissipation grooves 2 on both sides of the field collection recorder 1 can have the effect of ventilation and heat dissipation, so as to reduce the temperature inside the field collection recorder 1, and facilitate the long-term outdoor use of the field collection recorder 1, when the positioning block 6 is put into the placing groove 3, since the positioning block 6 is made of magnet material, the positioning block 6 will be attracted and fixed with the metal block 12, so as to further fix the protective cover 4, when installing the protective cover 4, in order to avoid the positioning block 6 being too long to be put into the placing groove 3, at this time the positioning block 6 will first contact with the arc-shaped guide plate 9, the guide plate 9 will extrude the positioning block 6 into the storage groove 5, so that the length of the positioning block 6 matches the placing groove 3, and the guide wheel 11 in the groove 10 plays a role in guiding the positioning block 6 into the placing groove 3, so as to play a role in assisting the installation of the positioning block 6, when the rotating ball 8 slides in the placing groove 3, it will extrude the sliding ball 14 in the placing groove 3, after being extruded, the sliding ball 14 will slide to the direction of the heat dissipation groove 2 with the second spring 15, which will make the connecting rope 16 not in a taut state, after the rotating ball 8 slides past the sliding ball 14, the second spring 15 restores the elasticity and resets the sliding ball 14, so that the sliding ball 14 with the connecting rope 16 restores the taut state again, at this time the connecting rope 16 will cause the cleaning rod 17 to vibrate violently, so that the cleaning rod 17 constantly hits the dust screen 13, so that the dust and debris on the dust screen 13 are removed, reducing the dust blocking the dust screen 13, and facilitating the normal use of the dust screen 13, when the protective cover 4 covers the field collection recorder 1, start the motor 20 in the protective cover 4, let the output rod 21 of the motor 20 drive the fan blade 22 to rotate, and then drive the outside air into the field collection recorder 1, and blow out the hot air in the field collection recorder 1, so as to achieve better cooling effect, realize the role of rapid cooling of the field collection recorder 1, and the protective net 18 plays a role in shielding and reducing the dust outside the fan from being sucked in, by putting dry ice 24 into the rectangular box 23, the dry ice 24 is in front of the fan blade 22, when the fan blade 22 blows, the wind of the fan blade 22 will pass through the dry ice 24, and then blow the cold air generated by the dry ice 24 into the inside of the field collection recorder 1, so as to achieve better cooling effect, and the wind of the fan blade 22 will enter through the hole of the rectangular box 23, and then blow out through the rectangular groove 25, and when passing through the rectangular groove 25, it will blow to the elastic rope 27 and the waterproof cloth 26, so that an air gap will be generated between the waterproof cloth 26 and the rectangular groove 25, so as to facilitate the wind blowing out,And the waterproof cloth 26 will also play a shielding dry ice 24 after the water, reduce the water is blown to the scene collection recorder 1, further improve the security, reduce the probability of damage of the scene collection recorder 1, when the dry ice 24 is put into the rectangular box 23, will first through the rotating plate 28 into, the inclined rotating plate 28 play buffer and facilitate the dry ice 24 into the rectangular box 23, and the dry ice 24 is put into the rectangular box 23, the rotating plate 28 will be reset through the torsional spring, and then the top of the rectangular box 23 is closed, reduce the dry ice 24 cold gas through the top of the rectangular box 23 leakage, thereby improving the sealing of the rectangular box 23, when the output rod 21 of the motor 20 starts to rotate, will take the sleeve rod 31, rope 32 and ball 33 together, so that the ball 33 impact connecting rod 29 bottom impact rod 30, so that the semicircular end of the impact rod 30 impact the protective net 18, so that the protective net 18 produces vibration, thereby falling dust on the protective net 18, play a convenient fan blade 22 suction and prevent the protective net 18 blockage effect, and the rubber material of the ball 33 play buffer and protect the impact rod 30 effect, when the dry ice 24 is put into the rectangular box 23, the dry ice 24 will fall to the sponge 34 on the rectangular box 23 inside, thereby impacting the sponge 34, and the water after the dry ice 24 melts will be absorbed by the sponge 34, so the dry ice 24 is put into the sponge 34 again after the impact, the water in the sponge 34 will be squeezed into the flow pipe 35 and sprayed, the sprayed water on the protective net 18 play a role in flushing and cleaning, thereby further cleaning the protective net 18, facilitate the use of the protective net 18.

[0048] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above examples, the above examples and the description in the specification is only to illustrate the principles of the present application, without departing from the spirit and scope of the present application, the present application will have various changes and improvements, these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A subway construction blast vibration measuring instrument comprising a field acquisition recorder (1); characterized in that: Both sides of the field acquisition recorder (1) are provided with heat dissipation grooves (2), one side of the field acquisition recorder (1) is provided with a placing groove (3) near the heat dissipation groove (2), the top of the field acquisition recorder (1) is provided with an inverted "U" shaped protective cover (4), the inside of the protective cover (4) is provided with a receiving groove (5), the inside of the receiving groove (5) is slidably connected with a positioning block (6), one end of the positioning block (6) is fixedly connected with a first spring (7), the other end of the first spring (7) is fixedly connected with the receiving groove (5), both sides of the positioning block (6) are rotatably connected with rotating balls (8). The positioning block (6) is made of magnet material, the inner wall of the placing groove (3) is fixedly connected with a metal block (12). The top of the field acquisition recorder (1) is fixedly connected with an arc-shaped guide plate (9), one side of the guide plate (9) is provided with a groove (10), the inside of the groove (10) is rotatably connected with a guide wheel (11). The inner wall of the heat dissipation groove (2) is fixedly connected with a dustproof net (13), the inside of the heat dissipation groove (2) is slidably connected with a sliding ball (14), one side of the sliding ball (14) is in the placing groove (3), the inner wall of the heat dissipation groove (2) is fixedly connected with a second spring (15), the other end of the second spring (15) is fixedly connected with the sliding ball (14), the surface of the sliding ball (14) is fixedly connected with a connecting rope (16), the surface of the connecting rope (16) is fixedly connected with a cleaning rod (17). One side of the protective cover (4) is fixedly connected with a protective net (18), one side of the protective net (18) is fixedly connected with a connecting plate (19), the other end of the connecting plate (19) is fixedly connected with a motor (20), the other end of the motor (20) is fixedly connected with an output rod (21), one end of the output rod (21) is fixedly connected with a fan blade (22), the fan blade (22) and the heat dissipation groove (2) are on the same straight line.

2. The blast vibration meter for subway construction according to claim 1, characterized in that: The inside of the protective cover (4) is fixedly connected with a rectangular box (23), the inside of the rectangular box (23) is provided with dry ice (24), one side of the rectangular box (23) is provided with a hole near the fan blade (22), the other side of the rectangular box (23) is provided with a rectangular groove (25), the inside of the rectangular groove (25) is fixedly connected with an elastic rope (27), the other end of the elastic rope (27) is fixedly connected with a waterproof cloth (26).

3. The blast vibration meter for subway construction according to claim 2, characterized in that: The top of the rectangular groove (25) is rotatably connected with a rotating plate (28) through a torsional spring, the rotating plate (28) is inclined.

4. The blast vibration meter for subway construction according to claim 3, characterized in that: The inside of the protective cover (4) is fixedly connected with a connecting rod (29), the bottom of the connecting rod (29) is rotatably connected with a striking rod (30) through a torsional spring, the bottom of the striking rod (30) is semicircular, the surface of the output rod (21) is fixedly connected with a sleeve rod (31), one end of the sleeve rod (31) is fixedly connected with a rope (32), the other end of the rope (32) is fixedly connected with a ball (33).

5. The blast vibration meter for subway construction according to claim 4, characterized in that: The bottom of the rectangular box (23) is fixedly provided with a sponge (34), and the bottom of the rectangular box (23) is fixedly provided with a flow guide pipe (35), and the port of the flow guide pipe (35) is communicated with the sponge (34).

6. The blast vibration meter for subway construction according to claim 5, characterized in that: The inside of the flow guide pipe (35) is fixedly provided with a filter screen (36).

Images