Recyclable temporary quick plugging device for blast hole

Abstract

The utility model discloses a recoverable blast hole temporary rapid plugging device, which comprises an inflator pump used for inflating air into an air bag, adopting a 12V small lithium battery to supply power, and comprising an expandable joint; the air bags are located at the tail end of the device, the air bags are made of high-elasticity rubber, the air bags are cylindrical after being inflated and expanded, the tops of the air bags are connected with quick-insertion type air escape valves and air inlet pipes, the air bags are main structures for temporarily plugging the blast holes, and the number of the air bags is the same as that of the to-be-plugged blast holes; and the control system consists of a barometer, a normally closed air valve and a relay and is used for automatically maintaining the pressure of the air bag. According to the recoverable temporary quick plugging device for the blasthole, the temporary plugging cost of the blasthole is saved, the quality and efficiency of temporary plugging of an orifice when the blasthole cannot be charged in time are ensured, and the safety of a subsequent charging procedure is improved.

Description

Technical Field

[0001] The utility model relates to the field of blasting engineering, and more specifically, to a recyclable blasting hole temporary rapid plugging device. Background Art

[0002] Temporary plugging of blasting holes is mainly used in situations where explosives cannot be loaded in time after the blasting holes are drilled. Its main function is to prevent surface water or debris from entering the drilled blasting holes and affecting the safety of subsequent charging. It is an important guarantee to ensure the smooth implementation of blasting.

[0003] Blasting is widely used in slope engineering and tunnel construction. Due to limited construction conditions and too many holes in the same batch of blasting holes, it is often impossible to load the completed blasting holes in time. In order to prevent surface water or debris from entering the blasting holes, the hole mouth needs to be temporarily blocked. At present, the construction site generally uses local materials to cover the hole mouth with a plastic bag and place stones on top of the plastic bag to fix it. This method cannot seal the hole mouth tightly, and surface water or debris can still enter the blasting hole. In addition, when charging the explosives later, the plastic bag is difficult to recycle, which will cause environmental pollution. Therefore, it is urgent to design a recyclable blasting hole temporary rapid blocking device, which can perform high-quality temporary rapid blocking of blasting holes, and can be recycled and reused, with high application value. Utility Model Content

[0004] One purpose of the utility model is to provide a recyclable blast hole temporary quick plugging device, by designing a quick plugging device composed of an air pump, an air bag, and a control system, to solve the problem that the blast hole cannot be tightly sealed using traditional methods and there is environmental pollution.

[0005] In order to achieve these purposes and other advantages of the utility model, a recyclable blast hole temporary rapid plugging device is provided, comprising:

[0006] An air pump, used to fill the airbag with air, powered by a small 12V lithium battery, including an expandable connector;

[0007] The airbag is located at the end of the device and is made of high elastic rubber. After being inflated, the airbag is cylindrical. The top of the airbag is connected to a quick-insert air release valve and an air inlet pipe. The airbag is the main structure for temporarily plugging the blasting holes, and the number of airbags is the same as the number of blasting holes to be plugged;

[0008] The control system consists of a pressure gauge, a normally closed air valve, and a relay, and is used to automatically maintain the pressure of the airbag.

[0009] Preferably, the air pump is a small portable air pump with a maximum inflation pressure not exceeding 5 MPa, and does not require mechanical assistance for movement, but can be moved manually.

[0010] Preferably, the air pump can be powered by a small lithium battery not exceeding 12V, without the need for an external power supply at the construction site.

[0011] Preferably, the air outlet end of the air pump includes an expandable joint, and the maximum expansion number is 12.

[0012] Preferably, the minimum wall thickness of the airbag after inflation is not less than 3 mm, the maximum diameter is 170 mm, and the height is not less than 400 mm.

[0013] Preferably, the air release valve on the top of the airbag has two air release modes, namely, air release by pulling out the pin and air release by active explosion when the airbag pressure exceeds 2.5Mpa.

[0014] Preferably, the airbag actively explodes and deflates by providing a safety deflation hole on the deflation valve latch, and the material of the safety deflation hole is silicone.

[0015] Preferably, the control system is located on the air intake pipeline between the air pump and the airbag, and each airbag is equipped with a control system. When the pressure in the airbag is less than 1Mpa, the air pump is automatically turned on to replenish the pressure in the airbag. When the pressure in the airbag is greater than 1.2Mpa, the air pump is automatically turned off to stop inflating the airbag.

[0016] The utility model at least has the following beneficial effects:

[0017] 1. The recyclable blasting hole temporary quick plugging device of the utility model can quickly temporarily plug the blasting hole that has been completed but cannot be charged yet. The plugging is tight and can ensure that surface water or debris does not enter the blasting hole.

[0018] 2. The number of airbags of the recyclable blast hole temporary rapid plugging device of the utility model can be adjusted according to the number of blast holes to be plugged. The connection is simple and quick, and it has the functions of automatic pressure maintenance during pressure relief and overpressure safety protection.

[0019] 3. After use, the recyclable blast hole temporary quick plugging device of the utility model can be quickly depressurized and recovered through a quick-insert air relief valve without causing environmental pollution.

[0020] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the recyclable blast hole temporary rapid plugging device of the utility model;

[0022] Figure 2 This is a detailed structural diagram of the airbag of the rapid plugging device of the utility model;

[0023] Figure 3 This is a detailed structural diagram of the quick plugging device quick-insertion air relief valve of the utility model;

[0024] Figure 4 This is a detailed structural diagram of the control system of the utility model rapid plugging device;

[0025] Figure 5 This is the control logic diagram of the control system of the utility model rapid plugging device;

[0026] Figure 6 This is a schematic diagram of the application of the quick plugging device of the utility model.

[0027] Description of reference numerals:

[0028] 1. Air pump, 2. Air bag, 3. Control system, 3-1. Pressure gauge, 3-2. Relay, 3-3. Normally closed air valve, 4. Inlet pipe, 5. Expandable connector, 6. Quick-plug air relief valve, 6-1. Air relief valve body, 6-2. Latch, 6-3. Safety pressure relief hole, 7. Signal line, 8. Blasting hole, 9. Slope. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0030] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0031] like Figures 1 to 6 As shown, the utility model provides a recyclable blast hole temporary rapid plugging device, comprising:

[0032] An air pump 1, used for filling air into the airbag 2, powered by a 12V small lithium battery, and including an expandable connector 5;

[0033] The airbag 2 is located at the end of the device and is made of high elastic rubber. The airbag 2 is cylindrical after being inflated. The top of the airbag 2 is connected with a quick-insert air release valve 6 and an air inlet pipe 4. The airbag 2 is the main structure for temporarily plugging the blasting holes 8, and the number of the airbags 2 is the same as the number of the blasting holes 8 to be plugged;

[0034] The control system 3 is composed of a pressure gauge 3-1, a normally closed air valve 3-3, and a relay 3-2, and is used for automatically maintaining the pressure of the airbag 2.

[0035] The air pump 1 is a small portable air pump with a maximum inflation pressure not exceeding 5 MPa. It does not require mechanical assistance for movement and can be moved manually.

[0036] The air pump 1 can be powered by a small lithium battery with a voltage not exceeding 12V, and no external power supply is required at the construction site.

[0037] The air outlet end of the air pump 1 includes an expandable joint 5, and the maximum expansion number is 12.

[0038] The minimum wall thickness of the airbag 2 after inflation is not less than 3 mm, the maximum diameter is 170 mm, and the height is not less than 400 mm.

[0039] The quick-insert air release valve 6 on the top of the airbag 2 has two air release modes, namely, air release by pulling out the pin and air release by active explosion when the airbag pressure exceeds 2.5Mpa.

[0040] The control system 3 is located on the air inlet pipe 4 between the air pump 1 and the airbag 2. Each airbag 2 is equipped with a control system 3. When the pressure in the airbag 2 is less than 1Mpa, the air pump 1 is automatically turned on to replenish the pressure in the airbag 2.

[0041] In the above technical scheme, the use of a small air pump 1 powered by a portable lithium battery is an important prerequisite for ensuring that the device is suitable for field operations; the wall thickness of the airbag 2 is not less than 3 mm, which can ensure that the airbag 2 is not pierced by the edges of stones and increase the number of times the airbag 2 is reused; a safety pressure relief hole 6-3 is provided in the latch 6-2 of the quick-insert air relief valve 6 on the top of the airbag 2, and the safety pressure relief hole 6-3 is made of silicone. When the pressure in the airbag 2 exceeds 2.5Mpa, the safety pressure relief hole 6-3 automatically ruptures to release the pressure in the airbag 2 to ensure safe operation.

[0042] When the utility model recyclable blast hole temporary quick plugging device is used for temporary plugging of blast holes in slope engineering, the air pump 1, air bag 2, expandable joint 5, air inlet pipe 4, and control system 3 are connected in sequence on the ground, and the signal line 7 is connected to the air pump 1, and the air bag 2 is placed on the top of the completed blast hole 8; then the power switch of the relay 3-2 is turned on to make the normally closed air valve 3-3 in the open state; after confirming that all parts are connected correctly, the power of the air pump 1 is turned on to inflate the air bag 2, and when the pressure in the air bag 2 reaches 1.2Mpa, the inflation is automatically stopped. Before charging the blast hole 8, the pin 6-2 is pulled out to complete the deflation action of the air bag 2, and the air bag 2 is recovered for subsequent reuse.

[0043] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A recyclable blast hole temporary rapid plugging device, characterized in that: include: An air pump, used to fill the airbag with air, powered by a small 12V lithium battery, including an expandable connector; The airbag is located at the end of the device and is made of high elastic rubber. After being inflated, the airbag is cylindrical. The top of the airbag is connected to a quick-insert air release valve and an air inlet pipe. The airbag is the main structure for temporarily plugging the blasting holes, and the number of airbags is the same as the number of blasting holes to be plugged; The control system consists of a pressure gauge, a normally closed air valve, and a relay, and is used to automatically maintain the pressure of the airbag.

2. The recyclable blast hole temporary rapid plugging device according to claim 1, characterized in that: The air pump is a small portable air pump with a maximum inflation pressure not exceeding 5Mpa, and can be powered by a small lithium battery not exceeding 12V.

3. The recyclable blast hole temporary rapid plugging device according to claim 1, characterized in that: The air outlet end of the air pump includes an expandable joint, and the maximum expansion number is 12.

4. The recyclable blast hole temporary rapid plugging device according to claim 1, characterized in that: The minimum wall thickness of the airbag after inflation is not less than 3 mm, the maximum diameter is 170 mm, and the height is not less than 400 mm.

5. The recyclable blast hole temporary rapid plugging device according to claim 1, characterized in that: The air release valve on the top of the airbag has two air release modes, namely, air release by pulling out the pin and air release by active explosion when the airbag pressure exceeds 2.5Mpa.

6. The recyclable blast hole temporary rapid plugging device according to claim 5, characterized in that: The active explosion and deflation of the airbag is achieved by arranging a safety deflation hole on the deflation valve latch, and the material of the safety deflation hole is silicone.

7. The recyclable blast hole temporary rapid plugging device according to claim 1, characterized in that: The control system is located on the air intake pipeline between the inflation pump and the airbag. Each airbag is equipped with a control system. When the pressure in the airbag is less than 1Mpa, the inflation pump is automatically turned on to replenish the pressure in the airbag. When the pressure in the airbag is greater than 1.2Mpa, the inflation pump is automatically turned off to stop inflating the airbag.

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