Mine air bag

Abstract

The air bag comprises an outer air bag body and an inner air bag body arranged in the outer air bag body, an outer air inlet pipe is arranged on the outer air bag body, an inner air inlet pipe is arranged on the inner air bag body, the inner air inlet pipe is arranged in the outer air inlet pipe, an outer air inlet channel is formed between the outer air inlet pipe and the inner air inlet pipe, and an inner air inlet channel is formed between the outer air inlet pipe and the inner air inlet pipe. An inner air inlet channel is formed in the inner air inlet pipe, and an outer air inlet communicated with the interior of the outer air bag and the outer air inlet channel is formed in the outer air inlet pipe. The inner air bag is additionally arranged in the outer air bag, the inner air inlet pipe is arranged in the outer air inlet pipe, air injection or exhaust treatment on the inner air bag is completed through the inner air inlet channel, and air injection or exhaust treatment on the outer air bag is completed through the outer air inlet channel. In an occasion needing rapid inflation / deflation, the inner air bag and the outer air bag are inflated / deflated at the same time, and the volume change of the outer air bag is further accelerated, so that the air bag is suitable for being used in the occasion.

Description

Technical Field

[0001] The utility model relates to an air bag for mines, in particular to an air bag for mines with a compact structure and suitable for use in fast inflation / exhaust occasions. Background Art

[0002] During mining, a wire saw is cleaned with water and air to cut large rocks. Air bags are then placed in the cut seams and inflated to separate the cut smaller rocks from the mined rock. Existing air bags are single-bag structures that utilize an air pump for inflation. However, when rapid inflation is required to expedite the separation of mined and mined rock, these bags take a long time to inflate, hindering efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an air bag for mining, which has the characteristics of compact structure and is suitable for use in occasions of rapid inflation / exhaustion.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: an air bag for mines, the innovation of which is that: the air bag for mines includes an outer air bag and an inner air bag arranged inside the outer air bag, the outer air bag is provided with an outer air intake pipe, the inner air bag is provided with an inner air intake pipe, the inner air intake pipe is arranged inside the outer air intake pipe, an outer air intake channel is formed between the outer air intake pipe and the inner air intake pipe, an inner air intake channel is formed inside the inner air intake pipe, and an outer air intake port connecting the interior of the outer air bag and the outer air intake channel is provided on the outer air intake pipe.

[0005] Preferably, the central axis of the inner air intake pipe coincides with the central axis of the outer air intake pipe, and the outer air intake pipe and the inner air intake pipe are respectively provided with an outer tee and an inner tee, and the inner tee is arranged inside the outer tee.

[0006] Preferably, the outer tee and the inner tee are threadedly connected to the outer air intake pipe and the inner air intake pipe respectively.

[0007] Preferably, the end surfaces of the outer air inlet pipe and the inner air inlet pipe connected to the outer tee and the inner tee respectively are not flush;

[0008] The length of the outer air intake pipe exceeds the length of the inner air intake pipe, and the inner tee extends into the outer air intake pipe and is threadedly connected to the inner air intake pipe.

[0009] Preferably, the external tee includes a main air inlet pipe directly connected to the external air inlet pipe, a main air measuring port and a main air supply port or a main air exhaust port arranged obliquely or vertically to the main air inlet pipe, the main air measuring port is connected to the main pressure gauge, and the main air supply port or the main air exhaust port is connected to the main high-pressure gas storage tank or the main empty tank.

[0010] Preferably, the internal tee includes an auxiliary air intake pipe directly connected to the internal air intake pipe, an auxiliary air measuring port and an auxiliary air supply port or an auxiliary air exhaust port arranged obliquely or vertically to the auxiliary air intake pipe, the auxiliary air measuring port is connected to an auxiliary pressure gauge, and the auxiliary air supply port or the auxiliary air exhaust port is connected to an auxiliary high-pressure gas storage tank or an auxiliary empty tank.

[0011] Preferably, the inner tee is provided with a first support member located between the outer tee and the inner tee, the first support member includes a first cylindrical sleeve provided on the inner tee, a plurality of first connecting ribs provided on the first cylindrical sleeve and radially outwardly along the first cylindrical sleeve, the plurality of first connecting ribs are distributed along the entire circle of the first cylindrical sleeve, and the first connecting ribs are located between the inner tee and the outer tee.

[0012] Preferably, the inner air intake pipe is sleeved with a second support member located between the outer air intake pipe and the inner air intake pipe, the second support member includes a second cylindrical sleeve sleeved on the inner air intake pipe, a plurality of second connecting ribs arranged on the second cylindrical sleeve and radially outward along the second cylindrical sleeve, the plurality of second connecting ribs are distributed along the entire circle of the second cylindrical sleeve, and the second connecting ribs are located between the inner air intake pipe and the outer air intake pipe.

[0013] Preferably, an outer sealing edge is provided around the outer air bag on the upper ring of the outer air bag, and an outer sleeve for the outer air intake pipe to pass through is provided at the position of the outer air intake pipe; an inner sealing edge is provided around the inner air bag on the upper ring of the inner air bag, and an inner sleeve for the inner air intake pipe to pass through is provided at the position of the inner air intake pipe.

[0014] Preferably, the outer edge seal and the inner edge seal are strip-shaped structures arranged along the outer air bag and the inner air bag respectively, the width of the outer edge seal is 6-12 cm, and the width of the inner edge seal is 6-12 cm.

[0015] The advantages of this utility model are that, by adopting the above-mentioned structure, an inner air bag is added to the outer air bag, and the inner air inlet pipe is arranged within the outer air inlet pipe. The inner air inlet channel is used to complete the filling or exhaust of the inner air bag, and the outer air inlet channel is used to complete the filling or exhaust of the outer air bag. In situations where rapid inflation / exhaustion is required, the inner and outer air bags can be inflated / exhausted simultaneously, further accelerating the volume change of the outer air bag, thus adapting to such situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementations.

[0017] Figure 1 The utility model is a structural schematic diagram of an air bag for mining.

[0018] Figure 2 The utility model is a structural diagram of an inner air inlet pipe, an outer air inlet pipe, an inner tee and an outer tee in an air bag for mining.

[0019] Figure 3 This is a simplified structural diagram of an air bag for mining in the utility model.

[0020] In the figure: 1-external air bag, 2-inner air bag, 3-external air inlet pipe, 4-inner air inlet pipe, 5-external air inlet channel, 6-inner air inlet channel, 7-external air inlet, 8-external tee, 81-main air inlet pipe, 82-main air measuring port, 83-main air supply port or main exhaust port, 9-inner tee, 91-auxiliary air inlet pipe, 92-auxiliary air measuring port, 93-auxiliary air supply port or auxiliary exhaust port, 10-first support member, 101-first cylindrical sleeve, 102-first connecting rib, 11-second support member, 111-second cylindrical sleeve, 112-second connecting rib, 12-external edge seal, 13-outer sleeve, 14-inner edge seal, 15-inner sleeve, 16-main pressure gauge. DETAILED DESCRIPTION

[0021] The present invention provides an air bag for mining, comprising an outer air bag 1 and an inner air bag 2 disposed within the outer air bag 1. The outer air bag 1 is provided with an outer air inlet pipe 3, and the inner air bag is provided with an inner air inlet pipe 4, which is disposed within the outer air inlet pipe 3. An outer air inlet passage 5 is formed between the outer air inlet pipe 3 and the inner air inlet pipe 4. An inner air inlet passage 6 is formed within the inner air inlet pipe 4. The outer air inlet pipe 3 is provided with an outer air inlet port 7 connecting the interior of the outer air bag 1 with the outer air inlet passage 5. By adopting the above structure, the inner air bag is added to the outer air bag 1, the inner air inlet pipe 4 is disposed within the outer air inlet pipe 3, and the inner air inlet passage 6 is used to fill or exhaust the inner air bag, while the outer air inlet passage 5 is used to fill or exhaust the outer air bag 1. In situations where rapid inflation / exhaustion is required, the inner air bag and the outer air bag 1 can be inflated / exhausted simultaneously, further accelerating the volume change of the outer air bag 1, thereby adapting to such situations.

[0022] In order to rationalize the layout and facilitate the connection, the central axis of the inner air intake pipe 4 coincides with the central axis of the outer air intake pipe 3. The outer air intake pipe 3 and the inner air intake pipe 4 are respectively provided with an outer tee 8 and an inner tee 9, and the inner tee 9 is arranged inside the outer tee 8. The outer tee 8 and the inner tee 9 are respectively threadedly connected to the outer air intake pipe 3 and the inner air intake pipe 4.

[0023] In order to further ensure reliable connection, the end faces of the outer air intake pipe 3 and the inner air intake pipe 4 connected to the outer tee 8 and the inner tee 9 respectively are not flush; the length of the outer air intake pipe 3 exceeds the length of the inner air intake pipe 4, and the inner tee 9 extends into the outer air intake pipe 3 and is threadedly connected to the inner air intake pipe 4.

[0024] The external tee 8 includes a main air inlet pipe 81 directly connected to the external air inlet pipe 3, a main air measuring port 82 and a main air supply port or main exhaust port 83 arranged at an angle or perpendicular to the main air inlet pipe 81. The main air measuring port 82 is connected to the main pressure gauge 16, and the main air supply port or main exhaust port 83 is connected to the main high-pressure gas storage tank or the main empty tank. The tee includes an auxiliary air inlet pipe 91 directly connected to the internal air inlet pipe 4, an auxiliary air measuring port 92 and an auxiliary air supply port or auxiliary exhaust port 93 arranged at an angle or perpendicular to the auxiliary air inlet pipe 91. The auxiliary air measuring port 92 is connected to the auxiliary pressure gauge, and the auxiliary air supply port or auxiliary exhaust port 93 is connected to the auxiliary high-pressure gas storage tank or the auxiliary empty tank.

[0025] In order to ensure that the inner tee 9 is not misaligned with the outer tee 8, a first support member 10 is provided on the inner tee 9 and is located between the outer tee 8 and the inner tee 9. The first support member 10 includes a first cylindrical sleeve 101 provided on the inner tee 9, and a plurality of first connecting ribs 102 are provided on the first cylindrical sleeve 101 and radially outwardly along the first cylindrical sleeve 101. The plurality of first connecting ribs 102 are distributed along the entire circle of the first cylindrical sleeve 101, and the first connecting ribs 102 are located between the inner tee 9 and the outer tee 8.

[0026] In order to ensure that the inner air intake pipe 4 is not misaligned with the outer air intake pipe 3, a second support member 11 is provided on the inner air intake pipe 4 and is located between the outer air intake pipe 3 and the inner air intake pipe 4. The second support member 11 includes a second cylindrical sleeve 111 provided on the inner air intake pipe 4, and a plurality of second connecting ribs 112 are provided on the second cylindrical sleeve 111 and radially outwardly along the second cylindrical sleeve 111. The plurality of second connecting ribs 112 are distributed along the entire circle of the second cylindrical sleeve 111, and the second connecting ribs 112 are located between the inner air intake pipe 4 and the outer air intake pipe 3.

[0027] To further prevent side leakage from the outer and inner airbags under high pressure, an outer seal 12 is provided around the outer airbag 1. This seal is fitted with an outer sleeve 13 at the location of the outer air intake pipe 3, through which the outer air intake pipe 3 passes. An inner seal 14 is provided around the inner airbag 2. This seal is fitted with an inner sleeve 15 at the location of the inner air intake pipe 4, through which the inner air intake pipe 4 passes. The outer and inner seals 12 and 14 are strip-like structures running around the outer and inner airbags, respectively. The width of the outer seal 12 and inner seal 14 is 6-12 cm, respectively. By leaving a certain width for the inner and outer seals 14 and 12, the side edges are protected from wear and high-pressure expansion.

[0028] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this application should not be determined with reference to the above description, but rather with reference to the appended claims and the full scope of equivalents to which such claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not a disclaimer of such subject matter, nor should it be assumed that the inventors did not consider such subject matter to be part of the disclosed utility model subject matter.

Claims

1. A mining air bag, characterized by: The air bag for mining includes an outer air bag and an inner air bag arranged inside the outer air bag. The outer air bag is provided with an outer air intake pipe, the inner air bag is provided with an inner air intake pipe, the inner air intake pipe is arranged inside the outer air intake pipe, an outer air intake channel is formed between the outer air intake pipe and the inner air intake pipe, an inner air intake channel is formed inside the inner air intake pipe, and an outer air intake port is provided on the outer air intake pipe to connect the inside of the outer air bag and the outer air intake channel.

2. The mining air bag according to claim 1, characterized in that: The central axis of the inner air intake pipe coincides with the central axis of the outer air intake pipe. An outer tee and an inner tee are respectively provided on the outer air intake pipe and the inner air intake pipe. The inner tee is provided inside the outer tee.

3. The mining air bag according to claim 2, characterized in that: The outer tee and the inner tee are respectively threadedly connected to the outer air intake pipe and the inner air intake pipe.

4. The mining air bag according to claim 2, characterized in that: The end surfaces of the outer air inlet pipe and the inner air inlet pipe connected to the outer tee and the inner tee respectively are not flush; The length of the outer air intake pipe exceeds the length of the inner air intake pipe, and the inner tee extends into the outer air intake pipe and is threadedly connected to the inner air intake pipe.

5. The mining air bag according to claim 2, characterized in that: The external tee includes a main air intake pipe directly connected to the external air intake pipe, a main air measuring port and a main air supply port or a main air exhaust port arranged obliquely or vertically to the main air intake pipe, the main air measuring port is connected to the main pressure gauge, and the main air supply port or the main air exhaust port is connected to the main high-pressure gas storage tank or the main empty tank.

6. The mining air bag according to claim 2, characterized in that: The internal tee includes an auxiliary air intake pipe directly connected to the internal air intake pipe, an auxiliary air measuring port and an auxiliary air supply port or an auxiliary air exhaust port arranged obliquely or vertically to the auxiliary air intake pipe, the auxiliary air measuring port is connected to an auxiliary pressure gauge, and the auxiliary air supply port or the auxiliary air exhaust port is connected to an auxiliary high-pressure gas storage tank or an auxiliary empty tank.

7. The mining air bag according to claim 2, characterized in that: The upper sleeve of the inner tee is provided with a first support member located between the outer tee and the inner tee. The first support member includes a first cylindrical sleeve set on the inner tee, and a plurality of first connecting ribs arranged on the first cylindrical sleeve and radially outwardly along the first cylindrical sleeve. The plurality of first connecting ribs are distributed along the entire circle of the first cylindrical sleeve, and the first connecting ribs are located between the inner tee and the outer tee.

8. The mining air bag according to claim 1, characterized in that: The inner air intake pipe is sleeved with a second support member located between the outer air intake pipe and the inner air intake pipe. The second support member includes a second cylindrical sleeve sleeved on the inner air intake pipe, and a plurality of second connecting ribs arranged on the second cylindrical sleeve and radially outward along the second cylindrical sleeve. The plurality of second connecting ribs are distributed along the entire circle of the second cylindrical sleeve, and the second connecting ribs are located between the inner air intake pipe and the outer air intake pipe.

9. The mining air bag according to claim 1, characterized in that: The outer air bag is provided with an outer sealing edge around the outer air bag on the upper ring, and an outer sleeve for the outer air intake pipe to pass through is provided at the position of the outer air intake pipe; the inner air bag is provided with an inner sealing edge around the inner air bag on the upper ring, and an inner sleeve for the inner air intake pipe to pass through is provided at the position of the inner air intake pipe.

10. The mining air bag according to claim 9, characterized in that: The outer sealing edge and the inner sealing edge are strip-shaped structures arranged along the outer air bag and the inner air bag respectively. The width of the outer sealing edge is 6-12 cm, and the width of the inner sealing edge is 6-12 cm.

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