Wellhead protection device and protection method for manual bored pile blasting construction

Abstract

The present invention discloses a wellhead protection device for bored pile blasting construction and a protection method thereof, which belongs to the field of wellhead protection devices for construction, comprising a construction well, wherein a protection cover is movably installed on the construction well, a bottom plate is fixedly installed at the bottom position of the outer side of the protection cover, a fixing screw is movably installed on the bottom plate, and an anti-flying stone mechanism is movably installed in the protection cover. Large pieces of crushed stone impact the buffer plate, and the sandbags are pushed by compressing the spring and pushing the push plate upward, so that the impact force on the large pieces of stone is consumed and the sandbags are dropped back, thereby preventing the large pieces of crushed stone from rushing out of the construction well and damaging surrounding workers, thereby improving safety. The dust-proof mechanism is used to treat dust by atomized water mist sprayed from a nozzle, so that dust does not spread outward from the construction well, so that the construction state around the construction well after blasting can be quickly carried out to avoid being affected by dust, and the collection cover is convenient for recovering the ejected sandbags, making the collection of the sandbags more convenient.

Description

Technical Field

[0001] The invention relates to the field of construction wellhead protection devices, in particular to a wellhead protection device for artificial bored pile blasting construction and a protection method thereof. Background Art

[0002] Blasting is a technology that uses the compression, loosening, destruction, throwing and killing effects produced by the explosion of explosives in air, water, soil and rock media or objects to achieve the desired purpose. In construction environments such as mining and road construction, manual hole blasting to continue construction has become a common construction method. In existing manual blasting construction, as the blast occurs, a large amount of gravel and dust will rush out of the wellhead, and the surrounding workers are easily injured by large pieces of gravel, which poses certain safety hazards. In addition, the large amount of dust also forces subsequent construction to wait, which is a waste of time. Summary of the Invention

[0003] The main purpose of the present invention is to provide a wellhead protection device and a protection method for artificial bored pile blasting construction, which can effectively solve the problems in the background technology.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] The wellhead protection device for bored pile blasting construction includes a construction well, a protective cover movably installed on the construction well, a bottom plate fixedly installed at the bottom position of the outer side of the protective cover, a fixing screw movably installed on the bottom plate, a flying stone prevention mechanism movably installed in the protective cover, the flying stone prevention mechanism includes a buffer plate, a movable rod, a spring, a mounting cover, a collecting cover and a sandbag, the mounting cover is fixedly installed in the middle position of the protective cover, the collecting cover is fixedly installed at the upper end position of the mounting cover, the sandbag is movably installed in the mounting cover, the buffer plate is movably installed in the construction well, the lower end of the movable rod is fixedly connected to the buffer plate, the spring is movably installed on the movable rod and is located between the buffer plate and the mounting cover, and the protective cover is movably installed at the side position of the construction well. A dust-proof mechanism, the dust-proof mechanism includes an annular plate, a water receiving bin, a water outlet pipe, a wire mesh, a water inlet pipe and an annular water pipe, the annular plate is fixedly installed at the bottom position of the protective cover, the water receiving bin is fixedly installed at the inner position of the annular plate, the wire mesh is fixedly installed on the annular plate, the wire mesh is annularly wound at the outer position of the construction well, and the upper and lower ends of the wire mesh are fixed to the protective cover and the annular plate by welding, the water outlet pipe is fixedly installed at the bottom position outside the protective cover, and the water outlet pipe is interconnected with the bottom position of the water receiving bin, the annular water pipe is fixedly installed in the protective cover and is located above the water receiving bin, the annular water pipe surrounds the construction well, the water inlet pipe is fixedly installed at the upper position of the protective cover, and one end of the water inlet pipe is interconnected with the annular water pipe.

[0006] Preferably, the anti-flying stone mechanism further includes a sponge pad, which is fixedly installed on the bottom surface of the buffer plate and movably installed in the construction well.

[0007] Preferably, the anti-flying stone mechanism further includes a movable hole, the movable hole is fixedly opened at the bottom surface of the mounting cover, and the movable rod is movably mounted in the movable hole of the mounting cover.

[0008] Preferably, the anti-flying stone mechanism further includes a push plate, the push plate is located in the collection cover, the upper end of the movable rod is fixedly mounted on the push plate, and the sandbag is located on the push plate.

[0009] Preferably, the dustproof mechanism also includes a separation ring plate, which is fixedly mounted on the annular plate. The separation ring plate also surrounds the construction well. The water receiving bin and the wire mesh are respectively located on both sides of the separation ring plate. The water receiving bin is located between the protective cover and the separation ring plate.

[0010] Preferably, the dust-proof mechanism also includes a rubber plug and a limiting tube. The rubber plug is movably installed at the pipe mouth of the water outlet pipe. The limiting tube is also fixedly installed at the bottom position of the protective cover. The limiting tube is also interconnected with the water receiving bin. The limiting tube is located above the water outlet pipe.

[0011] Preferably, the dustproof mechanism further includes a support rod and a nozzle, the support rod is fixedly mounted on the annular water pipe, and the annular water pipe is fixedly connected to the protective cover through the support rod, and the nozzle is fixedly mounted on the bottom surface of the annular water pipe.

[0012] The protection method of the wellhead protection device for bored pile blasting construction includes the following steps:

[0013] S1: The protective cover is fixed on the wellhead of the construction well, and is fixed to the ground around the wellhead through the bottom plate. The fixing screws are hammered into the ground below the bottom plate. The buffer plate and the sponge pad are stuck in the construction well. The push plate and the plate body at the bottom of the installation cover are fitted together. The sandbag is slid into the collection cover and accumulated on the push plate. The external water pipe and the water inlet pipe are fixedly connected to each other. Clean water is introduced into the annular water pipe and sprayed out through the nozzle to form an annular water curtain around the wire mesh.

[0014] S2: The buffer plate is subjected to the impact force during blasting, and debris and other impurities impact the sponge pad and the buffer plate, causing the buffer plate to move upward, compressing the spring, and the push plate in the installation cover to move upward synchronously, pushing the sandbag upward. Some sandbags are pushed out of the installation cover and fall again under the action of gravity, while some sandbags are collected by the collection cover, so that the sandbags are accumulated on the push plate again, preventing large debris from rushing out of the wellhead and injuring surrounding workers;

[0015] S3: When the buffer plate is pushed upward, dust and small stones rush out from the wellhead, and the small stones are intercepted again by the surrounding wire mesh. The dust passes through the wire mesh and contacts the atomized water curtain sprayed from the bottom of the nozzle, so that the dust and clean water stick to each other. Along with the atomized water droplets, they enter the water receiving bin below and accumulate in the water receiving bin. When the liquid level contacts the limit pipe, part of the liquid flows out along the limit pipe to prevent the liquid level from continuing to rise, so that the liquid flows into the inner position of the wire mesh.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] Through the anti-flying rock mechanism and other structures, large pieces of gravel will impact the buffer plate, and the buffer plate will compress the spring and push the sandbag upward to buffer the impact force, so that the impact force on the large stone will be consumed and fall into the well again, preventing large pieces of gravel from rushing out of the construction well and injuring surrounding workers, thereby improving safety;

[0018] The dust prevention mechanism is set up to treat the dust by spraying atomized water mist from the nozzle, so that the dust is treated by the atomized water mist and the dust does not spread outward from the construction well. The construction around the construction well after blasting can be carried out quickly to avoid being affected by dust.

[0019] By setting up a wire mesh to protect small particles of gravel, and cooperating with the protective cover on the outside, gravel, stones and other materials in the construction well cannot rush out, which improves safety. At the same time, the collection cover facilitates the collection of some flying sandbags, so that the pushed-out sandbags can slide in again under the action of the collection cover, making the collection of sandbags more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the wellhead protection device for manual bored pile blasting construction according to the present invention;

[0021] Figure 2 This is a schematic structural diagram of the steel wire mesh and annular water pipe of the wellhead protection device for bored pile blasting construction according to the present invention;

[0022] Figure 3 This is a structural schematic diagram of the anti-flying stone mechanism of the wellhead protection device for bored pile blasting construction according to the present invention;

[0023] Figure 4 This is a schematic structural diagram of the push plate and buffer plate of the wellhead protection device for bored pile blasting construction according to the present invention;

[0024] Figure 5 This is a structural schematic diagram of the installation cover and collection cover of the wellhead protection device for bored pile blasting construction of the present invention.

[0025] In the figure: 1. Construction well; 2. Protective cover; 3. Bottom plate; 4. Fixing screws; 5. Anti-flying stone mechanism; 501. Buffer plate; 502. Sponge pad; 503. Movable rod; 504. Spring; 505. Mounting cover; 506. Collecting cover; 507. Push plate; 508. Sandbag; 509. Movable hole; 6. Dust-proof mechanism; 601. Annular plate; 602. Separating ring plate; 603. Water receiving tank; 604. Water outlet pipe; 605. Rubber plug; 606. Wire mesh; 607. Water inlet pipe; 608. Annular water pipe; 609. Support rod; 610. Sprinkler; 611. Limiting pipe. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] like Figure 1-5As shown, the present invention relates to a wellhead protection device for bored pile blasting construction, comprising a construction well 1, a protective cover 2 movably mounted on the construction well 1, a bottom plate 3 fixedly mounted at the bottom position of the outer side of the protective cover 2, a fixing screw 4 movably mounted on the bottom plate 3, a flying stone prevention mechanism 5 movably mounted in the protective cover 2, the flying stone prevention mechanism 5 comprising a buffer plate 501, a movable rod 503, a spring 504, a mounting cover 505, a collecting cover 506 and a sandbag 508, the mounting cover 505 being fixedly mounted at the middle position of the protective cover 2, and the collecting cover 506 being fixedly mounted on the mounting cover 505 The sandbag 508 is movably installed in the installation cover 505, the buffer plate 501 is movably installed in the construction well 1, the lower end of the movable rod 503 is fixedly connected to the buffer plate 501, the spring 504 is movably installed on the movable rod 503, and is located between the buffer plate 501 and the installation cover 505. The anti-flying stone mechanism 5 also includes a sponge pad 502, which is fixedly installed on the bottom surface of the buffer plate 501. The sponge pad 502 is movably installed in the construction well 1. The anti-flying stone mechanism 5 also includes a movable hole 509, which is fixedly opened at the installation cover. At the bottom of the cover 505, the movable rod 503 is movably installed in the movable hole 509 of the installation cover 505. The anti-flying stone mechanism 5 also includes a push plate 507. The push plate 507 is located in the collection cover 506. The upper end of the movable rod 503 is fixedly installed with the push plate 507. The sandbag 508 is located on the push plate 507. The anti-flying stone mechanism 5 is used to process the gravel in the construction well 1. However, the anti-flying stone mainly processes large pieces of gravel. The impact force on these gravels is large. The impact force causes the buffer plate 501 to move upward, compressing the spring 504 and pushing the push plate 507 upward. The sand bags 508 are easily knocked away, thereby consuming the impact force on the large stones and making them fall back. The small stones are easily shot out in the gap between the buffer plate 501 and the construction well 1, and are further intercepted by the wire mesh 606 inside the construction well 1 and the outermost protective cover 2, so that these stones, gravel and other materials cannot leave the construction well 1, so as to avoid hurting the surrounding workers. The collecting cover 506 set by the installation cover 505 collects some of the flying sand bags 508 when they fall, so as to facilitate the collection of the sand bags 508.

[0028] A dustproof mechanism 6 is movably installed in the protective cover 2 at the side position of the construction well 1. The dustproof mechanism 6 includes an annular plate 601, a water receiving bin 603, a water outlet pipe 604, a wire mesh 606, a water inlet pipe 607 and an annular water pipe 608. The annular plate 601 is fixedly installed at the bottom position of the protective cover 2, the water receiving bin 603 is fixedly installed at the inner side of the annular plate 601, and the wire mesh 606 is fixedly installed on the annular plate 601. The wire mesh 606 is annularly wound at the outer side of the construction well 1, and the upper and lower ends of the wire mesh 606 are welded to the protective cover 2, The annular plate 601 is fixedly installed, the water outlet pipe 604 is fixedly installed at the bottom position of the outer side of the protective cover 2, and the water outlet pipe 604 is interconnected with the bottom position of the water receiving bin 603, the annular water pipe 608 is fixedly installed in the protective cover 2, and is located above the water receiving bin 603. The annular water pipe 608 surrounds the construction well 1, and the water inlet pipe 607 is fixedly installed at the upper position of the protective cover 2. One end of the water inlet pipe 607 is interconnected with the annular water pipe 608. The dustproof mechanism 6 also includes a separating ring plate 602, which is fixedly installed on the annular plate 601. The separating ring plate 602 is fixedly installed on the annular plate 601. The plate 602 also surrounds the construction well 1, and the water receiving bin 603 and the wire mesh 606 are respectively located on both sides of the separating ring plate 602. The water receiving bin 603 is located between the protective cover 2 and the separating ring plate 602. The dustproof mechanism 6 also includes a rubber plug 605 and a limiting pipe 611. The rubber plug 605 is movably installed at the nozzle position of the water outlet pipe 604. The limiting pipe 611 is also fixedly installed at the bottom position of the protective cover 2. The limiting pipe 611 is also interconnected with the water receiving bin 603. The limiting pipe 611 is located above the water outlet pipe 604. The dustproof mechanism 6 also includes a support The support rod 609 and the nozzle 610, the support rod 609 is fixedly installed on the annular water pipe 608, and the annular water pipe 608 is fixedly connected to the protective cover 2 through the support rod 609, and the nozzle 610 is fixedly installed on the bottom surface of the annular water pipe 608. The atomized water mist sprayed by the nozzle 610 under the annular water pipe 608 forms an atomized water curtain to reduce the dust, so that the dust cannot spread further, and the air quality around the construction well 1 will not be affected by the dust, so that workers can quickly enter this area for construction work after the blasting construction is completed.

[0029] The protection method of the wellhead protection device for bored pile blasting construction includes the following steps:

[0030] S1: The protective cover 2 is fixed on the wellhead of the construction well 1, and is fixed to the ground around the wellhead through the bottom plate 3. The fixing screws 4 are hammered through the through holes on the bottom plate 3 and nailed into the ground below. The buffer plate 501 and the sponge pad 502 are stuck in the construction well 1. The push plate 507 and the plate body at the bottom of the installation cover 505 are fitted together. The sandbag 508 is slid in along the collection cover 506 and accumulated on the push plate 507. The external water pipe and the water inlet pipe 607 are fixedly connected to each other. Clean water is passed into the annular water pipe 608 and sprayed out through the nozzle 610 to form an annular atomized water curtain around the wire mesh 606.

[0031] S2: The buffer plate 501 is subjected to the impact force during blasting, and debris and other impurities impact the sponge pad 502 and the buffer plate 501. The deformation of the sponge pad 502 consumes the impact force on the stone, thereby better protecting the buffer plate 501. After being impacted by the stone, the buffer plate 501 moves upward, and the buffer plate 501 compresses the spring 504, which consumes part of the impact force on the stone again. The push plate 507 is affected by the upward-pushing movable rod 503 and moves upward synchronously in the mounting cover 505, pushing the sandbag 508 upward. Part of the sandbag 508 is pushed out of the mounting cover 505 and flies upward. Through this mechanism, the impact force on the stone is released, so that large particles of stone cannot rush out of the entrance of the construction well 1, and fall back again under the action of gravity after the impact force is consumed, thereby preventing large and fast debris from rushing out of the wellhead and injuring the surrounding workers. Small pieces of stone and dust are easily rushed out from the gaps in the wellhead of the construction well 1 when the push plate 507 moves to the highest point;

[0032] S3: When the buffer plate 501 is pushed up, dust and small stones rush out from the wellhead, and the small stones are intercepted again by the surrounding wire mesh 606. The small stones are intercepted on the wire mesh 606. The dust passes through the mesh of the wire mesh 606 and enters the side position and contacts the atomized water curtain sprayed from the bottom of the nozzle 610, so that the dust and clean water stick to each other, so that the dust enters the water receiving bin 603 below with the atomized water droplets and accumulates in the water receiving bin 603, making it difficult for the dust to cross the water curtain composed of the atomized water mist and difficult to get out. The dust will not spread outward from the construction well 1, thereby avoiding affecting the environment around the construction well 1, so that the staff can quickly resume construction around the construction well 1 after the blasting is completed. When the liquid level in the water receiving tank 603 contacts the limiting pipe 611, part of the liquid flows out along the limiting pipe 611, preventing the liquid level from continuing to rise, and allowing the liquid to flow into the inner position of the wire mesh 606. When the blasting construction is completed, the water pipe is disassembled and the rubber plug 605 in the outlet pipe 604 is taken out, so that clean water mixed with dust flows out, making it easy to disassemble the protective cover 2.

[0033] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A wellhead protection device for bored pile blasting construction, comprising a construction well (1), a protective cover (2) movably mounted on the construction well (1), a bottom plate (3) fixedly mounted at the bottom position outside the protective cover (2), and a fixing screw (4) movably mounted on the bottom plate (3), characterized in that: A flying stone prevention mechanism (5) is movably installed in the protective cover (2), and the flying stone prevention mechanism (5) includes a buffer plate (501), a movable rod (503), a spring (504), a mounting cover (505), a collecting cover (506) and a sandbag (508). The mounting cover (505) is fixedly installed at the middle position of the protective cover (2), the collecting cover (506) is fixedly installed at the upper end position of the mounting cover (505), the sandbag (508) is movably installed in the mounting cover (505), the buffer plate (501) is movably installed in the construction well (1), the lower end of the movable rod (503) is fixedly connected to the buffer plate (501), and the spring (504) is movably installed on the movable rod (503) and is positioned A dustproof mechanism (6) is movably installed in the protective cover (2) at a side position of the construction well (1) between the buffer plate (501) and the installation cover (505). The dustproof mechanism (6) comprises an annular plate (601), a water receiving bin (603), a water outlet pipe (604), a steel wire mesh (606), a water inlet pipe (607) and an annular water pipe (608). The annular plate (601) is fixedly installed at the bottom position of the protective cover (2), the water receiving bin (603) is fixedly installed at the inner side position of the annular plate (601), the steel wire mesh (606) is fixedly installed on the annular plate (601), the steel wire mesh (606) is annularly wound at the outer side position of the construction well (1), and the steel wire mesh (606) is fixedly installed on the annular plate (601). The upper end and the lower end are fixedly mounted to the protective cover (2) and the annular plate (601) by welding. The water outlet pipe (604) is fixedly mounted at the bottom position of the outer side of the protective cover (2), and the water outlet pipe (604) is communicated with the bottom position of the water receiving bin (603). The annular water pipe (608) is fixedly mounted in the protective cover (2) and is located above the water receiving bin (603). The annular water pipe (608) surrounds the construction well (1). The water inlet pipe (607) is fixedly mounted at the upper position of the protective cover (2). One end of the water inlet pipe (607) is communicated with the annular water pipe (608). The dustproof mechanism (6) further includes a separating ring plate (602). The separating ring plate (602) is fixedly mounted on the inner side of the protective cover (2). On the annular plate (601), the separating ring plate (602) also surrounds the construction well (1), the water receiving bin (603) and the wire mesh (606) are respectively located on both sides of the separating ring plate (602), the water receiving bin (603) is located between the protective cover (2) and the separating ring plate (602), the dustproof mechanism (6) further comprises a rubber plug (605) and a limiting pipe (611), the rubber plug (605) is movably installed at the pipe mouth of the water outlet pipe (604), the limiting pipe (611) is also fixedly installed at the bottom position of the protective cover (2), the limiting pipe (611) is also communicated with the water receiving bin (603), and the limiting pipe (611) is located above the water outlet pipe (604).

2. The wellhead protection device for bored pile blasting construction according to claim 1 is characterized by: The anti-flying stone mechanism (5) further comprises a sponge pad (502), wherein the sponge pad (502) is fixedly mounted on the bottom surface of the buffer plate (501), and the sponge pad (502) is movably mounted in the construction well (1).

3. The wellhead protection device for bored pile blasting construction according to claim 2 is characterized by: The anti-flying stone mechanism (5) further comprises a movable hole (509), wherein the movable hole (509) is fixedly opened at the bottom surface of the mounting cover (505), and the movable rod (503) is movably mounted in the movable hole (509) of the mounting cover (505).

4. The wellhead protection device for bored pile blasting construction according to claim 3 is characterized by: The anti-flying stone mechanism (5) further comprises a push plate (507), the push plate (507) is located in the collecting cover (506), the upper end of the movable rod (503) is fixedly mounted on the push plate (507), and the sandbag (508) is located on the push plate (507).

5. The wellhead protection device for bored pile blasting construction according to claim 4 is characterized by: The dustproof mechanism (6) further comprises a support rod (609) and a nozzle (610), wherein the support rod (609) is fixedly mounted on the annular water pipe (608), and the annular water pipe (608) is fixedly connected to the protective cover (2) via the support rod (609), and the nozzle (610) is fixedly mounted on the bottom surface of the annular water pipe (608).

6. The wellhead protection device for bored pile blasting construction according to claim 5 is characterized by: The device's protection method for a construction wellhead includes the following steps: S1: The protective cover (2) is fixedly clamped on the wellhead of the construction well (1), and is fixedly installed on the ground around the wellhead through the bottom plate (3). The fixing screws (4) are nailed into the ground below the bottom plate (3) by hammering. The buffer plate (501) and the sponge pad (502) are clamped in the construction well (1). The push plate (507) and the plate body at the bottom of the installation cover (505) are fitted with each other. The sandbag (508) is slid in along the collection cover (506) and accumulated on the push plate (507). The external water pipe and the water inlet pipe (607) are fixedly connected to each other. Clean water is passed into the annular water pipe (608) and sprayed out through the nozzle (610) to form an annular water curtain around the wire mesh (606); S2: The buffer plate (501) is subjected to the impact force during blasting, and the gravel impacts the sponge pad (502) and the buffer plate (501), causing the buffer plate (501) to move upward, compressing the spring (504), and the push plate (507) in the mounting cover (505) to move upward synchronously, pushing the sandbag (508) upward, and part of the sandbag (508) is pushed out of the mounting cover (505) and falls again under the action of gravity, and part of the sandbag (508) is collected by the collecting cover (506), so that the sandbag (508) is accumulated on the push plate (507) again, preventing the large gravel from rushing out of the wellhead and injuring the surrounding workers; S3: When the buffer plate (501) is lifted upward, dust and small stones rush out from the wellhead, and the small stones are intercepted again by the surrounding wire mesh (606). The dust passes through the wire mesh (606) and contacts the atomized water curtain sprayed from the bottom of the nozzle (610), so that the dust and clean water adhere to each other. As the atomized water droplets enter the water receiving bin (603) below, they accumulate in the water receiving bin (603). When the liquid surface contacts the limit tube (611), part of the liquid flows out along the limit tube (611), preventing the liquid surface from continuing to rise, so that the liquid flows into the inner position of the wire mesh (606).

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