A multi-layer gas generating agent structure

Abstract

The embodiment of the present invention provides a multi-layer gas generating agent structure, which belongs to the technical field of gas generating agents. The multi-layer gas generating agent structure greatly improves the space rate and utilization rate of the gas generating agent. The structure includes at least two gas generating agent layers and at least one gas generating agent connecting block. The gas generating agent layers are formed by bending long strips of gas generating agent strips in a plane according to a certain rule. The at least two gas generating agent layers are stacked and there is a gap between the two adjacent gas generating agent layers. The connecting block is arranged in a one-to-one correspondence with the gap. The connecting block connects the gas generating agent strips in the two adjacent gas generating agent layers head to head or tail to tail, so that the gas generating agent strips in the at least two gas generating agent layers are connected in series. The multi-layer gas generating agent structure avoids the problem of short gas supply time caused by the limitation of the extension plane.

Description

Technical Field

[0001] The invention relates to the technical field of gas generating agents, and in particular provides a multi-layer gas generating agent structure and a preparation method thereof. Background Art

[0002] The pellets of the compressed pellet-type solid nitrogen generator and solid oxygen generator are either single linear pellets or curved planar pellets. For example, the flexible oxygen candle generator described in patent CN205820891U uses a curved oxygen candle to continuously connect the main linear oxygen candles to form a flat pellet, thereby extending the length of the oxygen candles.

[0003] Whether it is a single linear charge or a flat charge, the gas supply time of these charges is very short due to the limitation of the extended plane size. For example, the working time of a generator made of a single solid oxygen charge is generally up to 20 minutes. Even if it is made into a flat curved charge as described in patent CN205820891U, it is difficult to double the working time when it is convenient for the human body to carry. Summary of the invention

[0004] In view of the problems existing in the prior art, an embodiment of the present invention provides a multi-layer gas generating agent structure, which greatly improves the space utilization rate of the gas generating agent and avoids the problem of short gas supply time caused by the extension plane limitation.

[0005] The technical solution of the present invention is:

[0006] A multi-layer gas generating agent structure comprises at least two gas generating agent layers and at least one gas generating agent connecting block, wherein the gas generating agent layers are formed by bending long strips of gas generating agent strips in a plane according to a certain rule, the at least two gas generating agent layers are stacked and there is a gap between two adjacent gas generating agent layers, the connecting blocks are arranged in a one-to-one correspondence with the gaps, and the connecting blocks connect the gas generating agent strips in two adjacent gas generating agent layers head to head or tail to tail, so that the gas generating agent strips in the at least two gas generating agent layers are connected in series.

[0007] In an optional embodiment, the gas generating agent strips spiral outward from the center to form the gas generating agent layer, or are folded and bent from one end to the other end to form the gas generating agent layer.

[0008] In an optional embodiment, a first groove is provided on the side wall of the gas generating agent strip near the end surface, and a first protrusion is provided on each of the two opposite surfaces of the connecting block, and the connecting block and the gas generating agent strip are connected by the first groove and the first protrusion. 4. The multi-layer gas generating agent structure according to claim 1 is characterized in that it also includes a long strip-shaped first bracket, the first bracket extends in a direction perpendicular to the gas generating agent layer, and the head ends of the gas generating agent strips in the at least two gas generating agent layers are fixed on the first bracket or the tail ends of the gas generating agent strips in the at least two gas generating agent layers are fixed on the first bracket.

[0009] In an optional embodiment, two first brackets are included, and the head ends of the gas generating medicine strips in the at least two gas generating medicine layers are fixed on one first bracket, and the tail ends of the gas generating medicine strips in the at least two gas generating medicine layers are fixed on another first bracket.

[0010] In an optional embodiment, the connecting block is fixed on the first bracket, and the two opposite surfaces of the connecting block are in contact with two adjacent layers of the gas generating medicine layers respectively, so as to connect the gas generating medicine strips in the two adjacent layers of the gas generating medicine layers head to head or tail to tail.

[0011] In an optional embodiment, at least one second groove is provided on the end surface of the gas generating medicine strip, and a plurality of second protrusions are provided in parallel along the length direction on the first bracket, and the second protrusions are matched with the second grooves one by one to fix the gas generating medicine strip on the first bracket.

[0012] In an optional embodiment, the first bracket is a long through-slot structure, and the end of the gas-generating medicine strip is inserted into the through-slot.

[0013] In an optional embodiment, the first bracket has a U-shaped cross-section and is provided with two opposite inner flanges, and a third groove is provided on each of the two opposite side walls close to the end surface of the gas generating medicine strip, and the two inner flanges correspond one-to-one to the two third grooves on the same gas generating medicine strip, and the intersection of the inner flange and the gas generating medicine strip is embedded in the corresponding third groove.

[0014] In an optional embodiment, a fourth groove is provided on each of the two opposite side walls of the connecting block, the two inner flanges correspond one-to-one to the two fourth grooves on the same connecting block, and the intersection of the inner flanges and the connecting block is embedded in the corresponding fourth grooves.

[0015] In an optional embodiment, the multi-layer gas generating agent structure further includes an external gas generating agent connecting block, one end of which is connected to the head end of the gas generating agent layer located on the outermost layer, and the other end is used to connect to an external ignition device.

[0016] In an optional embodiment, the multi-layer gas generating agent structure further includes at least one second bracket, and the second bracket is used to support and fix each of the gas generating agent layers from the middle of the gas generating agent strip.

[0017] In an optional embodiment, the second bracket includes a support plate and a plurality of slots arranged on the support plate, the gas generating medicine layers correspond to the slots one by one and the gas generating medicine strips in the gas generating medicine layers are stuck in the corresponding slots.

[0018] In an optional embodiment, the maximum length of the cross section of the gas generating medicine strip is greater than 5 mm and less than 50 mm.

[0019] In an optional embodiment, the length of each layer of the gas generating medicine strips is not less than 5 cm, and the total length of each layer of the gas generating medicine strips is 30 cm to 1.5 m.

[0020] The beneficial effects of the present invention compared with the prior art are:

[0021] The multi-layer gas generating agent structure provided in the embodiment of the present invention is achieved by making the gas generating medicine strips into gas generating medicine layers that are bent in a plane according to a certain rule, stacking the multi-layer gas generating medicine layers, and realizing the series connection between the multi-layer gas generating medicine layers through connecting blocks located on the two layers. When the head of the gas generating medicine strips of the outer layer is detonated, the reaction of the first layer of medicine strips is completed along the bending rule of the medicine strips, and then the reaction is transmitted to the second layer through the connecting blocks, and so on, until the reaction of each layer is completed. The multi-layer gas generating agent structure greatly improves the space utilization rate of the gas generating medicine and avoids the problem of short gas supply time caused by the limitation of the extended plane. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a multi-layer gas generating agent structure provided by an embodiment of the present invention, wherein a is a side view, b is a top view, and c is a three-dimensional view;

[0023] Figure 2 A schematic diagram of another multi-layer gas generating agent structure provided by an embodiment of the present invention, wherein a is a top view, b is a side view, and c is a stereoscopic view;

[0024] Figure 3 A top view of a first bracket structure provided by an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of a gas-generating charge layer structure provided in an embodiment of the present invention;

[0026] Figure 5 A side view and a top view of a connection block provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The specific implementation of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] like Figure 1 and 2 As shown, an embodiment of the present invention provides a multi-layer gas generating agent structure, comprising at least two gas generating agent layers 10 and at least one gas generating agent connecting block 20, wherein the gas generating agent layers 10 are formed by bending long strips of gas generating agent strips in a plane according to a certain rule, the at least two gas generating agent layers 10 are stacked and there is a gap between two adjacent gas generating agent layers 10, the connecting blocks 20 are arranged in a one-to-one correspondence with the gaps, and the connecting blocks 20 connect the gas generating agent strips in two adjacent gas generating agent layers 10 head to head or tail to tail, so that the gas generating agent strips in the at least two gas generating agent layers 10 are connected in series.

[0029] For example, Figure 1 As shown, it includes three layers of gas generating medicine layers 10 and two gas generating medicine connecting blocks 20. The upper and lower surfaces of the connecting block 20 located in the gap between the first layer and the second layer correspond to the tails of the gas generating medicine strips of the first layer and the second layer respectively, and the two tails are connected. The upper and lower surfaces of the connecting block 20 located in the gap between the second layer and the third layer correspond to the heads of the gas generating medicine strips of the second layer and the third layer respectively, and the two heads are connected to realize the series connection of the three layers of gas generating medicine strips; and so on, it can be cycled infinitely.

[0030] In the embodiment of the present invention, the gas generating agent strip is preferably a strip-shaped pressed gas generating agent strip with a constant cross section, and its cross section can be a regular shape such as square, round, elliptical, triangular, trapezoidal, etc., or an irregular shape, which is not limited by the present invention; the gas generating agent connecting block can be a square column, cylindrical, elliptical column, triangular column, trapezoidal column, etc. structure; the gas generating agent used to press the gas generating agent strip can be a solid oxygen gas generating agent or a solid nitrogen gas generating agent, wherein the solid oxygen gas generating agent is a gas generating agent formula with chlorate or perchlorate as the main body, such as sodium chlorate, potassium chlorate, perchloric acid Sodium, potassium perchlorate, etc., the solid nitrogen gas generating agent is a gas generating agent formula with azide as the main body, such as sodium azide, etc.; when pressing the gas generating medicine strips, wet pressing or dry pressing can be adopted, and the dry pressing molding process refers to a molding process in which various raw materials are directly mixed by dry method and pressed, and generally, drying and other steps are required afterwards. The wet pressing molding process refers to a molding process in which various raw materials are mixed by dry method and then pressed with water, and drying and other steps are required afterwards. The equipment of the pressing molding process refers to an oil press, a rotary tablet press, a single-punch and multi-punch reciprocating tablet press.

[0031] Specifically, in the embodiment of the present invention, the number of gas-producing medicine layers can be determined according to the actual gas production needs, and the present invention does not limit it; the maximum length of the cross-section of the gas-producing medicine strip is preferably greater than 5 mm and less than 50 mm to ensure that the gas production can reach the needs of a single human body; the length of each layer of the gas-producing medicine strip is not less than 5 cm, and the total length of the gas-producing medicine strips in each layer is 30 cm to 1.5 m, so as to meet the gas-producing medicine usage time of more than 40 minutes.

[0032] In the embodiment of the present invention, Figure 1 As shown in FIG. 1 , the gas generating medicine strips radiate outward from the center and spiral to form the gas generating medicine layer, or as shown in FIG. Figure 2 As shown, the gas generating medicine strip can also be folded and bent from one end to the other end to form the gas generating medicine layer.

[0033] The multi-layer gas generating agent structure provided in the embodiment of the present invention is achieved by making the gas generating medicine strips into gas generating medicine layers that are bent in a plane according to a certain rule, stacking the multiple gas generating medicine layers, and connecting the multiple gas generating medicine layers in series through a connecting block located between the two layers. When the head of the gas generating medicine strips of the outer layer is detonated, the reaction of the first layer of medicine strips is completed along the bending rule of the medicine strips, and then the reaction is transmitted to the second layer through the connecting block, and so on, until the reaction of each layer is completed. The multi-layer gas generating agent structure greatly improves the space utilization rate of the gas generating medicine and avoids the problem of short gas supply time caused by the limitation of the extended plane.

[0034] In an optional embodiment, a first groove is provided on the side wall of the gas-generating medicine strip near the end face, and a first protrusion is provided on each of the two opposite surfaces of the connecting block 20. The connecting block 20 and the gas-generating medicine strip are connected by the first groove and the first protrusion, that is, the first protrusion and the first groove form a mortise and tenon structure to achieve a fixed connection between the two. In this embodiment, the shape of the first groove can be square, circular, elliptical, triangular, trapezoidal, etc., or an irregular shape. This method can achieve an effective combination of the two without an external support structure, which is beneficial to weight reduction and space saving.

[0035] like Figure 1 and 2 As shown, in another optional embodiment, the multi-layer gas generating agent structure also includes a first long bracket 30, which extends in a direction perpendicular to the gas generating agent layer 10, and the head ends of the gas generating agent strips in the at least two gas generating agent layers 10 are fixed on the first bracket 30 or the tail ends of the gas generating agent strips in the at least two gas generating agent layers 10 are fixed on the first bracket 30.

[0036] By providing the first bracket, the rigidity between the layers is enhanced, and the connection block and the gas-producing layer can be connected by wedging the connection block in the gap, without the need to design an additional connection structure between the two.

[0037] like Figure 1 and 2 As shown, further, the multi-layer gas generating agent structure includes two first brackets 30, the head ends of the gas generating agent strips in the at least two gas generating agent layers 10 are fixed on the left first bracket 30, and the tail ends of the gas generating agent strips in the at least two gas generating agent layers 10 are fixed on the right first bracket 30. This structure further improves the rigidity between the laminated structures.

[0038] In an optional embodiment, the connection block 20 is fixed on the first bracket 30, and the two opposite surfaces of the connection block 20 are respectively in contact with the two adjacent layers of the gas generating medicine layers 10, so as to connect the gas generating medicine strips in the two adjacent layers of the gas generating medicine layers 10 head to head or tail to tail. This structure facilitates the positioning and fixing of the connection block.

[0039] In an optional embodiment, at least one second groove is provided on the end surface of the gas generating medicine strip, and a plurality of second protrusions are provided in parallel along the length direction on the first bracket 30, and the second protrusions are adapted one-to-one with the second grooves to achieve fixing the gas generating medicine strip on the first bracket 30, specifically by wedging the second protrusions into the second grooves. The second grooves may be in the shape of square, circle, ellipse, triangle, trapezoid, etc., or may be in an irregular shape. This structure can achieve a stable connection between the bracket and the gas generating medicine layer.

[0040] like Figure 3 As shown, in an optional embodiment, the first bracket 30 is a long strip through-slot structure with a U-shaped cross section, and the end of the gas generating medicine strip is inserted into the through-slot. In other embodiments, the cross section of the first bracket 30 can also be a circular, square, triangular or other structure, which is not limited by the present invention; by designing the first bracket as a strip through-slot structure, the intersection area between the gas generating medicine strip and the bracket is increased, and the stability between the layers is further improved.

[0041] Furthermore, if Figure 3 As shown, the through slot opening is provided with two opposite inner flanges 31, as shown in FIG. Figure 4 As shown, the gas generating medicine strip has two opposite side walls near the end surface, each of which has a third groove 11, and the two inner flanges 31 correspond to the two third grooves 11 on the same gas generating medicine strip, and the intersection of the inner flange 31 and the gas generating medicine strip is embedded in the corresponding third groove 11. This structure is convenient for fixing and installing the first bracket and the gas generating medicine layer structure, and is convenient for adjusting the number of gas generating medicine layers according to the use requirements, and is used for gas generating medicine layers of various thicknesses, and has stronger versatility.

[0042] Furthermore, if Figure 5As shown, a fourth groove 21 is provided on each of the two opposite side walls of the connecting block 20, the two inner flanges 31 correspond one-to-one to the two fourth grooves 21 on the same connecting block 20, and the intersection of the inner flange 31 and the connecting block 20 is embedded in the corresponding fourth groove 21; in this example, the fourth groove and the third groove are preferably the same in cross-section, and according to the flange structure, they can be square, circular, elliptical, triangular, trapezoidal and other shapes, or irregular shapes; this structure is convenient for fixing the first bracket and the connecting block, and is convenient for selecting connecting blocks of different heights according to usage needs, and has stronger versatility.

[0043] Furthermore, the multi-layer gas generating agent structure also includes at least one second bracket, and the second bracket is used to support and fix each of the gas generating medicine layers from the middle of the gas generating medicine strip. In an optional embodiment, the second bracket includes a support plate and a plurality of slots arranged on the support plate, and the gas generating medicine layers correspond to the slots one by one and the gas generating medicine strips in the gas generating medicine layers are clamped in the corresponding slots. In other embodiments, the support and fixation of each layer of the gas generating agent structure by the second bracket can be achieved by providing an adaptive interface on the side wall of the gas generating medicine strip and the second support frame. The interface can be a mortise and tenon structure in which a groove and a protrusion cooperate, or a clamp structure, etc., which is not limited by the present invention;

[0044] like Figure 1 As shown in FIG. 2, the multi-layer gas generating agent structure further includes an external gas generating agent connecting block 40, one end of which is connected to the head end of the gas generating agent layer 10 located at the outermost layer, and the other end is used to connect to an external ignition device. The structure of the external gas generating agent connecting block can be consistent with that of the connecting block 20, or it can be different in height.

[0045] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

[0046] Parts of the present invention that are not described in detail belong to common knowledge among those skilled in the art.

Claims

1. A multi-layer gas generating agent structure, characterized in that: The invention comprises at least two gas generating medicine layers and at least one gas generating medicine connecting block, wherein the gas generating medicine layers are formed by bending long strips of gas generating medicine strips in a plane according to a certain rule, the at least two gas generating medicine layers are stacked, and there is a gap between two adjacent gas generating medicine layers, the connecting block is arranged in a one-to-one correspondence with the gap, and the connecting block connects the gas generating medicine strips in two adjacent gas generating medicine layers head to head or tail to tail, so that the gas generating medicine strips in the at least two gas generating medicine layers are connected in series; The gas generating medicine strips swirl outward from the center to form the gas generating medicine layer, or fold and bend from one end to the other end to form the gas generating medicine layer; A first groove is provided on the side wall of the gas generating medicine strip near the end surface, and a first protrusion is provided on each of the two opposite surfaces of the connecting block, and the connecting block and the gas generating medicine strip are connected through the first groove and the first protrusion; It also includes two long strip-shaped first brackets, the first brackets extending in a direction perpendicular to the gas generating medicine layer, the head ends of the gas generating medicine strips in at least two gas generating medicine layers are fixed to one of the first brackets, and the tail ends of the gas generating medicine strips in at least two gas generating medicine layers are fixed to the other of the first brackets; The connecting block is fixed on the first bracket, and two opposite surfaces of the connecting block are in contact with two adjacent gas generating medicine layers respectively, so as to connect the gas generating medicine strips in the two adjacent gas generating medicine layers head to head or tail to tail; At least one second groove is provided on the end surface of the gas generating medicine strip, and a plurality of second protrusions are provided on the first bracket in parallel along the length direction, and the second protrusions are matched with the second grooves in a one-to-one correspondence, so as to fix the gas generating medicine strip on the first bracket; The first bracket is a long through-slot structure, and the end of the gas-generating medicine strip is inserted into the through-slot; The first bracket has a U-shaped cross section and is provided with two opposite inner flanges, and a third groove is provided on each of the two opposite side walls of the gas generating medicine strip near the end surface, and the two inner flanges correspond to the two third grooves on the same gas generating medicine strip one by one, and the intersection of the inner flange and the gas generating medicine strip is embedded in the corresponding third groove; A fourth groove is respectively provided on the two opposite side walls of the connection block, the two inner flanges correspond one to one with the two fourth grooves on the same connection block, and the intersection of the inner flange and the connection block is embedded in the corresponding fourth groove.

2. The multi-layer gas generating agent structure according to claim 1, characterized in that: It also includes at least one second bracket, which is used to support and fix each of the gas generating medicine layers from the middle of the gas generating medicine strip; The second bracket includes a support plate and a plurality of slots arranged on the support plate, the gas generating medicine layers correspond to the slots one by one, and the gas generating medicine strips in the gas generating medicine layers are stuck in the corresponding slots.

3. The multi-layer gas generating agent structure according to claim 1, characterized in that: It also includes an external gas generating agent connection block, one end of which is connected to the head end of the gas generating agent layer located on the outermost layer, and the other end is used to connect to an external ignition device.

4. The multi-layer gas generating agent structure according to claim 1, characterized in that: The maximum length of the cross section of the gas generating medicine strip is greater than 5 mm and less than 50 mm.

5. The multi-layer gas generating agent structure according to claim 1, characterized in that: The length of the gas generating medicine strips in each layer is not less than 5 cm, and the total length of the gas generating medicine strips in each layer is 30 cm to 1.5 m.

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