CN212430428U - Pneumatic drive device and unmanned aerial vehicle - Google Patents

Abstract

The utility model discloses a pneumatic drive arrangement and unmanned aerial vehicle. The pneumatic driving device is used for projecting an object to be thrown through compressed gas in a gas cylinder and comprises: the support is internally provided with an accommodating cavity, the support is also provided with a gas inlet and a gas outlet, and the compressed gas can enter the accommodating cavity through the gas inlet; a first seal located within the receiving cavity; the first elastic piece is positioned in the accommodating cavity and used for driving the first sealing piece to abut against the air outlet so as to seal the air outlet; the first sealing element can move along a set direction and is separated from the gas outlet, so that the compressed gas is sprayed out through the gas outlet. Unmanned aerial vehicle includes foretell pneumatic drive arrangement. The utility model discloses a pneumatic drive arrangement's structure is simpler, and the part is less, can to a certain extent reduce weight and reduce cost.

Description

Pneumatic drive device and unmanned aerial vehicle

Technical Field

The utility model belongs to the technical field of unmanned aerial vehicle and specifically relates to a pneumatic drive arrangement and unmanned aerial vehicle are related to.

Background

With the continuous development of unmanned aerial vehicle technology, its range of application is also more and more extensive, for example, combine unmanned aerial vehicle and net rifle to realize arresting. The unmanned aerial vehicle is used for launching the net gun to position, so that long-distance accurate capture can be realized, the capture capacity is improved, and the safety of personnel at own is guaranteed. When the net gun is launched by the unmanned aerial vehicle, the capturing net is usually arranged on a mounting holder of the unmanned aerial vehicle, and after the net gun arrives at a destination, the capturing net is released from being fixed and is projected to a target area through a pneumatic driving device. However, some pneumatic driving devices in the related art have a complicated structure and numerous components.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a pneumatic driving device, this pneumatic driving device's structure is simpler, and the part is less, can alleviate weight and reduce cost to a certain extent.

The utility model discloses still provide an unmanned aerial vehicle, the pneumatic drive arrangement's among this unmanned aerial vehicle structure is simpler, and the part is less, can reduce weight and reduce cost to a certain extent.

In a first aspect, an embodiment of the present invention provides a pneumatic driving device for projecting an object to be placed through compressed gas in a gas cylinder, including:

the support is internally provided with an accommodating cavity, the support is also provided with a gas inlet and a gas outlet, and the compressed gas can enter the accommodating cavity through the gas inlet;

a first seal located within the receiving cavity;

the first elastic piece is positioned in the accommodating cavity and used for driving the first sealing piece to abut against the air outlet so as to seal the air outlet;

the first sealing element can move along a set direction and is separated from the gas outlet, so that the compressed gas is sprayed out through the gas outlet.

The utility model discloses pneumatic drive arrangement has following beneficial effect at least: the first sealing element is abutted against the air outlet under the driving of the first elastic element to seal the air outlet; when the first sealing element moves along the set direction, the first sealing element is separated from the air outlet, and the air outlet is opened. The compressed gas in the high-pressure state in the accommodating cavity is rapidly flushed out and sprayed onto the object to be put, so that the object to be put is projected. The pneumatic driving device can realize pneumatic driving by only arranging fewer parts, can simplify the structure, and reduces the weight and the cost.

According to the utility model discloses a pneumatic drive arrangement of other embodiments still includes the separator, first sealing member includes the shielding part, the separator centers on the shielding part sets up and the two supports and holds, the separator with the shielding part will it separates for first cavity and second cavity to hold the cavity, the air inlet the gas outlet all with first cavity intercommunication, still be equipped with the gas leakage mouth on the support, the gas leakage mouth with second cavity intercommunication.

According to other embodiments of the present invention, the pneumatic driving device further comprises a blocking portion which is provided between the first chamber and the second chamber, and a gap is provided between the blocking portion and the partition member to form a passage through which the compressed gas in the first chamber can flow into the second chamber.

According to the utility model discloses a pneumatic drive arrangement of other embodiments still includes locking piece and driving piece, the locking piece is used for sealing the gas leakage mouth, the driving piece can drive the locking piece motion is so that gas leakage mouth and external intercommunication.

According to the utility model discloses a pneumatic drive arrangement of other embodiments still includes second elastic component and supports and holds the piece, support to be equipped with the first through-hole with external intercommunication on holding the piece, first through-hole with leak opening intercommunication, the second elastic component is used for the drive the locking piece support hold in order to seal first through-hole, the driving piece is used for the drive the locking piece motion is in order to open first through-hole.

According to the utility model discloses a pneumatic drive arrangement of other embodiments, the locking piece includes main part and trigger part, trigger part has the inclined plane, the second elastic component support hold in trigger part, so that trigger part stretches into first through-hole just the inclined plane support hold in the pore wall of first through-hole, and make the main part warp first through-hole stretches out.

According to the utility model discloses a pneumatic drive arrangement of other embodiments still includes the gas cylinder and holds, the gas cylinder holds and is used for holding the gas cylinder, still be equipped with piercing member on the support, work as the gas cylinder holds with when the support is connected, piercing member can puncture the gas cylinder, so that the gas cylinder with the air inlet intercommunication.

According to the utility model discloses a pneumatic drive arrangement of other embodiments still includes third elastic component, second sealing member and stops the piece, stop the piece with the support is connected, the third elastic component is used for the drive the second sealing member support hold in stop the piece, be equipped with the second through-hole on the second sealing member, work as the gas cylinder holding with when the support is connected, the second sealing member can be promoted so that puncture piece passes the second through-hole and punctures the gas cylinder.

According to the utility model discloses a pneumatic drive arrangement of other embodiments still includes the guide, the guide with the support is connected, first elastic component cover is located on the guide, the inside direction cavity that has of first sealing member, the guide stretches into in the direction cavity and can for first sealing member motion.

In a second aspect, an embodiment of the present invention provides an unmanned aerial vehicle, including the above pneumatic driving device.

The utility model discloses unmanned aerial vehicle has following beneficial effect at least: in the pneumatic driving device of the unmanned aerial vehicle, the first sealing element is abutted against the air outlet under the driving of the first elastic element to seal the air outlet; when the first sealing element moves along the set direction, the first sealing element is separated from the air outlet, and the air outlet is opened. The compressed gas in the high-pressure state in the accommodating cavity is rapidly flushed out and sprayed onto the object to be put, so that the object to be put is projected. The pneumatic driving device can realize pneumatic driving by only arranging fewer parts, can simplify the structure, and reduces the weight and the cost.

Drawings

FIG. 1 is a schematic view showing the overall construction of a pneumatic drive apparatus in a first embodiment;

FIG. 2 is a schematic view showing the internal structure of the pneumatic actuator of FIG. 1;

FIG. 3 is an exploded view of the pneumatic driver of FIG. 1;

FIG. 4 is a schematic view showing the internal structure of the pneumatic actuator of FIG. 1;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a schematic view of the connecting structure of the unlocking member and the support in FIG. 1;

FIG. 7 is a schematic view of the connection structure of the gas cylinder and the support in FIG. 1;

FIG. 8 is a schematic view of the connection structure of the gas cylinder and the support in FIG. 1;

fig. 9 is an exploded view of the connection of the gas cylinder to the support in fig. 1.

Reference numerals:

the gas cylinder comprises a support 100, a containing cavity 110, a first cavity 111, a second cavity 112, a gas inlet 120, a gas outlet 130, a gas leakage port 140, a piercing member 150, a gas release port 160, an extending part 170, a recessed part 180, a gas cylinder containing member 200, a gas cylinder 210, a first sealing member 300, a blocking part 310, a plug 320, a guide cavity 330, a first elastic member 400, a driving member 500, a driving arm 510, a separating member 600, a locking member 700, a main body part 710, a triggering part 720, an inclined surface 721, a second elastic member 800, a holding member 900, a first through hole 910, a third elastic member 1000, a second sealing member 1100, a second through hole 1110, a blocking surface 1120, a blocking member 1200, a guide member 1300, a sealing block 1400 and a gas outlet pipe 1500.

Detailed Description

The conception and the resulting technical effects of the present invention will be described clearly and completely with reference to the following embodiments, so that the objects, features and effects of the present invention can be fully understood. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, if an orientation description is referred to, for example, the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, only for convenience of description and simplification of description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the embodiments of the present invention, if a feature is referred to as being "disposed", "fixed", "connected", or "mounted" on another feature, it can be directly disposed, fixed, or connected to the other feature or indirectly disposed, fixed, connected, or mounted on the other feature. In the description of the embodiments of the present invention, if "a plurality" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "greater than", "less than" or "more than" is referred to, it is understood that the number is not included, and if "more than", "less than" or "within" is referred to, it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.

Referring to fig. 1, 2, 3 and 7, the pneumatic driving apparatus in this embodiment includes a support 100, a gas cylinder 210, a first sealing member 300, a first elastic member 400, and the like. The support 100 may be integrally formed, or may be formed by combining a plurality of components, for example, in this embodiment, two components are sleeved to form the support, and the two components are connected by a screw thread. The gas cylinder 210 is filled with compressed gas, which is high-pressure gas. The support 100 defines a receiving cavity 110 therein, the support 100 is further provided with a gas inlet 120 and a gas outlet 130, and compressed gas in the gas cylinder 210 can enter the receiving cavity 110 through the gas inlet 120 and can exit the receiving cavity 110 through the gas outlet 130.

The first sealing element 300 and the first elastic element 400 are located in the accommodating cavity 110, and the first sealing element 300 includes a blocking portion 310 and a plug 320, which are respectively located at two ends of the first sealing element 300. Two ends of the first elastic element 400 respectively abut against the support 100 and the shielding portion 310. Under the action of the first elastic element 400, the plug 320 will abut against the air outlet 130, and close the air outlet 130. The plug 320 is matched with the air outlet 130 in shape so as to make the two have higher fit, for example, both are arranged in an arc surface shape. The surface of the plug 320 can be provided with a silica gel layer or a rubber layer to enhance the sealing performance and reduce the air leakage probability.

An air outlet pipe 1500 is connected to the air outlet 130 of the support 100, and an object to be placed (omitted in the figure) is connected to the air outlet pipe 1500. When the first sealing member 300 moves along a predetermined direction (the predetermined direction is the first direction in the drawing) and is separated from the gas outlet 130, the gas outlet 130 is communicated with the gas outlet pipe 1500, and the compressed gas enters the gas outlet pipe 1500 through the gas outlet 130 and is sprayed onto the object to be thrown, so that the object to be thrown is projected. The pneumatic driving device in the embodiment has fewer parts and simpler structure, and can reduce the cost and the weight to a certain extent.

Referring to fig. 2 to 4, in some embodiments, the support 100 is further provided with a gas leakage port 140, the gas leakage port 140 is separated from the gas inlet 120, and the gas leakage port 140 may communicate with the outside. A partition 600 is further provided in the receiving chamber 110, and the partition 600 is coupled to the support 100. The partitioning member 600 is disposed around the shielding portion 310, that is, the shielding portion 310 extends into the partitioning member 600, and the circumferential surface of the shielding portion 310 abuts against the side wall of the partitioning member 600. The partition 600 divides the receiving cavity 110 into two parts, specifically, a first cavity 111 is formed between the partition 600 and the support 100, and a second cavity 112 is formed between the partition 600 and the shielding part 310. The air inlet 120 and the air outlet 130 are both communicated with the first cavity 111, and the air leakage port 140 is communicated with the second cavity 112.

The gas leakage port 140 is spaced apart from the gas inlet port 120, and prevents gas from flowing directly from the gas inlet port 120 into the gas leakage port 140 to be discharged. When the first cavity 111 is filled with the compressed gas, the first elastic element 400 is abutted against the plug 320 in the first direction, and the compressed gas further abuts against the gas outlet 130 in the first direction from the plug 320. Therefore, if a conventional driving manner, such as pushing or pulling the first sealing member 300 in the first direction using a cylinder or a motor, is adopted, the resistance to the movement is large, and the driving force needs to be large enough to be realized. In this embodiment, after the compressed gas in the gas cylinder 210 enters the first cavity 111, the gas pressure in the first cavity 111 is much higher than the outside, and the gas leakage port 140 is only required to be communicated with the outside, so that the compressed gas in the first cavity 111 can push the first sealing element 300 to move along the first direction, and the operation is easy to implement.

In some embodiments, the shielding portion 310 abuts against the partition 600, and a sealing ring is disposed between the shielding portion and the partition, but the sealing ring does not reach a completely sealed state, and a gap exists between the shielding portion and the partition to form a passage. Through which the compressed gas in the first chamber 111 can pass into the second chamber 112. Thus, the air pressure in the first cavity 111 is substantially equal to that in the second cavity 112. When the gas cylinder 210 is in communication with the receiving chamber 110, the compressed gas enters the first chamber 111. Because the air pressures in the first cavity 111 and the second cavity 112 are substantially equal, the high-pressure compressed air in the first cavity 111 does not push the shielding portion 310 to move along the first direction, and the stopper 320 can be abutted against the air outlet 130 to achieve sealing only by arranging the first elastic member 400 with a smaller specification. If the space between the shielding portion 310 and the separating member 600 is completely sealed, the pressure in the second cavity 112 is normal, the pressure in the first cavity 111 is higher than that in the second cavity 112, and the compressed gas may push the first sealing member 300 in the first direction after entering the first cavity 111.

When the air leakage opening 140 is connected to the outside, the first sealing member 300 moves in the first direction and the first elastic member 400 is compressed because the air pressure in the second cavity 112 is much higher than the outside air pressure. Although the compressed gas in the first chamber 111 continues to enter the second chamber 112 as the compressed gas in the second chamber 112 is gradually discharged, there is a certain obstruction to the gas entering the second chamber 112 due to the obstruction of the shielding portion 310 and the partition 600. When the plug 320 is separated from the gas outlet 130, the compressed gas in the first cavity 111 can be directly discharged through the gas outlet 130 without being blocked or obstructed by parts, and therefore, most of the gas can be directly discharged to the gas outlet pipe 1500 through the gas outlet 130.

Referring to fig. 4 to 6, in some embodiments, the air vent opening device further includes a driving member 500 and a locking member 700, the air vent opening 140 is closed by the locking member 700, and the air vent opening 140 can be opened by driving the locking member 700 by the driving member 500. For example, the air vent 140 may be blocked by a silicone plug, and when the air vent 140 needs to be opened, the silicone plug may be pulled out or pushed out by the driving member 500.

In some embodiments, a second elastic element 800, a holding element 900, and the like are further included. The periphery of the air leakage opening 140 on the support 100 is hollowed to form a recess 180, and the holding member 900 extends into the recess 180 and is in threaded connection with the recess 180. The supporting member 900 has a hollow first through hole 910, and the first through hole 910 is communicated with the air leakage opening 140. The locking member 700 is located inside the abutting member 900, and two ends of the second elastic member 800 abut against the bottom wall of the recess 180 and the locking member 700, respectively, so that the locking member 700 abuts against the abutting member 900 to seal the first through hole 910. When the air leakage port 140 needs to be communicated with the outside, the driving member 500 drives the locking member 700 to move, so that the locking member 700 is separated from the abutting member 900 and does not block the first through hole 910. Here, the second elastic member 800 is in a compressed state, and when the air leakage port 140 needs to be closed, the driving member 500 stops working, and the locking member 700 automatically resets under the effect of the resilience force of the second elastic member 800, and does not need to be manually plugged into the first through hole 910, so that the operation is more convenient.

In some embodiments, the locking member 700 includes a main body portion 710 and a triggering portion 720, the triggering portion 720 extends into the first through hole 910, and the main body portion 710 extends out of the holding member 900 through the first through hole 910. The triggering portion 720 has an inclined surface 721, and the second elastic member 800 abuts against the end of the triggering portion 720, so that the inclined surface 721 abuts against the hole wall of the first through hole 910 to block the first through hole 910, and the abutting degree can be improved by the inclined surface abutting. The driving member 500 is located at one side of the main body portion 710, and the driving arm 510 can rotate to push the main body portion 710 away from the holding member 900, so that the triggering portion 720 is separated from the first through hole 910. A steering engine may be used as the driving member 500 to reduce weight, the driving arm 510 being a steering engine arm. The trigger portion 720 is made of silicone or rubber to improve sealing performance. Alternatively, the sealing block 1400 may be further provided, a through hole is also provided on the sealing block 1400, the through hole is coaxial and communicated with the first through hole 910, the main body 710 extends out of the first through hole 910 after passing through the through hole on the sealing block 1400, and the inclined surface 721 abuts against the hole wall of the sealing block 1400. The sealing block 1400 can improve the sealing performance and prevent air leakage.

Referring to fig. 7 to 9, in some embodiments, the gas cylinder 210 is disposed in the gas cylinder accommodating member 200, and the support 100 is provided with the puncturing member 150, and a sharp needle may be used as the puncturing member 150. When the gas cylinder accommodating member 200 is coupled to the holder 100, the puncturing member 150 punctures the seal of the gas cylinder 210, and the gas cylinder 210 communicates with the gas inlet port 120. In this embodiment, the gas cylinder 210 is automatically opened to supply gas while being mounted on the support 100, and is not required to be opened in advance and then mounted, so that gas loss and waste can be avoided.

In some embodiments, the support 100 is provided with an outwardly extending protrusion 170, the protrusion 170 is disposed around the air inlet 120, and the puncturing element 150 is disposed inside the protrusion 170. An annular stopper 1200 is fitted and fixed to an inner side wall of the protruding portion 170, and a stopper surface 1120 is provided at an end of the second seal 1100. For example, the end of the second seal 1100 may be radially hollowed out by one turn to form a stop surface 1120. The extension portion 170 is provided with a second sealing element 1100 therein, the third elastic element 1000 is disposed inside the second sealing element 1100 and sleeved outside the piercing element 150, and two ends of the third elastic element 1000 respectively abut against the bottom wall of the extension portion 170 and the second sealing element 1100. Under the effect of the resilience of the third elastic member 1000, the blocking surface 1120 abuts against the blocking member 1200 to limit the position, so as to prevent the second sealing member 1100 from coming off. The gas cylinder accommodating member 200 can be sleeved outside the extension 170 and screwed with the extension 170, and when the extension 170 is screwed into the gas cylinder accommodating member 200, the end of the gas cylinder 210 abuts against the second sealing member 1100, so that the gas cylinder moves towards the direction close to the support 100. The end of the second sealing member 1100 is provided with a second through hole 1110, and when the second sealing member 1100 moves to a predetermined position, the puncturing member 150 is exposed through the second through hole 1110 and contacts with the end seal of the gas cylinder 210 to puncture the seal. At this time, the third elastic member 1000 is in a compressed state, and after the gas cylinder accommodating member 200 is separated from the protruding part 170, the second sealing member 1100 is reset under the resilient force of the third elastic member 1000, and the blocking surface 1120 again abuts against the blocking member 1200. In this embodiment, the protruding portion 170 may shield and protect the piercing member 150, so as to prevent the piercing member 150 from being directly exposed and damaged by collision when the gas cylinder 210 is not installed, and to prevent an operator from being pierced.

Referring to fig. 2 to 4, in some embodiments, a guide 1300 is further provided, one end of the guide 1300 is connected to the support 100, and the first elastic member 400 is sleeved on the guide 1300. The first sealing member 300 is provided at the inner portion thereof with a guide cavity 330, and the guide 1300 may extend into or out of the guide cavity 330 when the first sealing member 300 moves. The first sealing member 300 can be moved more smoothly by the guide 1300. The support 100 is further provided with a gas release opening 160, a valve is arranged at the gas release opening 160, and after the use is finished, the valve of the gas release opening 160 can be opened to discharge the residual gas in the accommodating cavity 110.

In some embodiments, a drone is also disclosed, the drone comprising the pneumatic drive of the various embodiments described above.

Referring to all the drawings, when the pneumatic driving device in the embodiment of the present invention is used to drive the object to be placed, the object to be placed is loaded on the mounting platform of the unmanned aerial vehicle, and then the gas cylinder accommodating member 200 is installed on the support 100, and as the gas cylinder accommodating member 200 is screwed down relative to the support 100, the seal of the gas cylinder 210 is punctured, and the compressed gas enters the first cavity 111. When the unmanned aerial vehicle takes the object to be put to fly to the target position, the driving member 500 drives the locking member 700 to move so as to be separated from the first through hole 910, so that the air leakage port 140 is communicated with the outside, and the first sealing member 300 is pushed to move along the first direction and is separated from the air outlet 130. After the gas outlet 130 is opened, the compressed gas is sprayed into the gas outlet pipe 1500 through the gas outlet 130, and then the object to be put is sprayed out.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

Claims (10)

1. Pneumatic drive arrangement for throw the thing of waiting to put through the compressed gas in the gas cylinder, its characterized in that includes:

the support is internally provided with an accommodating cavity, the support is also provided with a gas inlet and a gas outlet, and the compressed gas can enter the accommodating cavity through the gas inlet;

a first seal located within the receiving cavity;

the first elastic piece is positioned in the accommodating cavity and used for driving the first sealing piece to abut against the air outlet so as to seal the air outlet;

the first sealing element can move along a set direction and is separated from the gas outlet, so that the compressed gas is sprayed out through the gas outlet.

2. The pneumatic driving device according to claim 1, further comprising a partition, wherein the first sealing element includes a shielding portion, the partition is disposed around the shielding portion and abuts against the shielding portion, the partition and the shielding portion separate the accommodating cavity into a first cavity and a second cavity, the air inlet and the air outlet are both communicated with the first cavity, the support is further provided with an air leakage port, and the air leakage port is communicated with the second cavity.

3. A pneumatic drive as claimed in claim 2, wherein a gap exists between the curtain and the partition to form a passage through which the compressed gas in the first chamber can flow into the second chamber.

4. The pneumatic drive of claim 2, further comprising a locking member for closing the air vent and a driving member capable of driving the locking member to move to communicate the air vent with the outside.

5. The pneumatic driving device according to claim 4, further comprising a second elastic member and a supporting member, wherein the supporting member is provided with a first through hole communicated with the outside, the first through hole is communicated with the air leakage port, the second elastic member is used for driving the locking member to support the supporting member to close the first through hole, and the driving member is used for driving the locking member to move to open the first through hole.

6. The pneumatic driving device according to claim 5, wherein the locking member includes a main body portion and a trigger portion, the trigger portion has an inclined surface, and the second elastic member abuts against the trigger portion, so that the trigger portion extends into the first through hole and the inclined surface abuts against a hole wall of the first through hole, and the main body portion extends through the first through hole.

7. The pneumatic driving device according to claim 1, further comprising a gas cylinder receiving member for receiving the gas cylinder, wherein the support is further provided with a puncturing member capable of puncturing the gas cylinder when the gas cylinder receiving member is connected with the support, so that the gas cylinder is communicated with the gas inlet.

8. The pneumatic driving device according to claim 7, further comprising a third elastic member, a second sealing member and a blocking member, wherein the blocking member is connected to the support, the third elastic member is used for driving the second sealing member to abut against the blocking member, the second sealing member is provided with a second through hole, and when the gas cylinder accommodating member is connected to the support, the second sealing member can be pushed by the gas cylinder to enable the puncturing member to pass through the second through hole and puncture the gas cylinder.

9. The pneumatic drive of claim 1, further comprising a guide member coupled to the support, wherein the first resilient member is disposed over the guide member, wherein the first seal member has a guide cavity therein, and wherein the guide member extends into the guide cavity and is movable relative to the first seal member.

10. Unmanned aerial vehicle, characterized in that, comprises the pneumatic drive of any one of claims 1 to 9.

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