CN111268066A

CN111268066A - Multifunctional pneumatic throwing device

Info

Publication number: CN111268066A
Application number: CN202010122653.2A
Authority: CN
Inventors: 常善强; 向朝华; 刘涛
Original assignee: Beijing Lingtian Intelligent Equipment Group Co Ltd
Current assignee: Beijing Lingtian Intelligent Equipment Group Co Ltd
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2020-06-12

Abstract

The invention relates to the technical field of rope carrying emitters, in particular to a multifunctional pneumatic throwing device. The utility model provides a ware is thrown in multi-functional pneumatics, includes inflator, hand rest subassembly and gas cylinder, and the inflator includes the barrel and is located the piston assembly of barrel, and the one end of barrel is the open end, and it has the butt sealing ring to be close to the open end shaping in the barrel, has set firmly central box in the compressed air storage area, and the inside shaping of central box has central cavity, wears to be equipped with the outlet duct on the central box, and the mouth of pipe of giving vent to anger is equipped with the rubber buffer that the control mouth of pipe of giving vent to anger opened and close, and central: the piston assembly comprises a piston rod, a first piston and a second piston, the first piston and the second piston are connected to two ends of the piston rod, the second piston is located in the central cavity, when the first piston is abutted to the abutting sealing ring, a distance is reserved between the second piston and the inner side wall of the central box, and the sectional area of the second piston is larger than the central area of the abutting sealing ring. The scheme can realize long-distance throwing of the object under the condition that the air pressure in the cylinder body is small.

Description

Multifunctional pneumatic throwing device

Technical Field

The invention relates to the technical field of rope carrying emitters, in particular to a multifunctional pneumatic throwing device.

Background

The multifunctional pneumatic throwing device is equipment which takes compressed air as power and throws objects such as ropes, life buoys and the like to a target, and is commonly used in natural disaster rescue work.

The prior patent of the invention with the application publication number of CN104709450A discloses a multifunctional lifesaving pneumatic throwing device. According to the technical scheme, the spring is used for providing elastic force to push the piston on the piston rod to extrude the inner wall of the port of the air cylinder to form a sealing surface so as to achieve the sealing effect. When the object needs to be launched, the trigger is pressed, and the guide rod mounting seat is communicated with the atmosphere. The effective area of the acting force exerted by the compressed air in the air cylinder on the bottom of the piston rod is larger than that of the acting force on the end part of the piston. Therefore, the compressed air exerts acting force on the piston rod, overcomes the pressure of the spring to drive the piston rod to move towards the direction in the air cylinder, so that the port of the air cylinder is opened, and the compressed air is sprayed out of the air cylinder to launch the object.

The above prior art solution has the following drawbacks: the pressure of the compressed air on the piston rod is required to overcome the force applied by the spring on the piston rod to maintain the piston in the open state. During the process of discharging the compressed air, the air pressure in the air cylinder is continuously reduced, so that the opening amplitude of the piston is gradually reduced, and the compressed air in the cylinder cannot be quickly and completely injected. Therefore, the long-distance throwing of the object can be realized only by filling high-pressure compressed air into the air cylinder.

Disclosure of Invention

The invention aims to provide a multifunctional pneumatic throwing device which has the advantage that long-distance throwing can be realized by using lower air cylinder pressure.

The above object of the present invention is achieved by the following technical solutions: the utility model provides a ware is thrown in multi-functional pneumatics, includes inflator, hand rest subassembly and gas cylinder, be equipped with the compressed air storage area in the inflator, the inflator includes the barrel and is located the piston assembly of barrel, and the one end of barrel is the open end, and it has the butt sealing ring to be close to the open end shaping in the barrel, has set firmly central box in the compressed air storage area, and the inside shaping of central box has central cavity, wears to be equipped with the central cavity of intercommunication and the atmospheric outlet duct in the external world on the central box, the mouth of pipe of giving vent to anger is equipped with the rubber buffer that the control mouth of pipe opened and close, central box is equipped with the through-hole of intercommunication central: the piston assembly comprises a piston rod, a first piston and a second piston, the first piston and the second piston are connected to the two ends of the piston rod, the second piston is located in the central cavity, when the first piston is abutted to the abutting sealing ring, a distance is reserved between the second piston and the inner side wall of the central box, and the sectional area of the second piston is larger than the central area of the abutting sealing ring.

Through adopting above-mentioned technical scheme, the rubber buffer breaks away from, and the outlet duct is opened, and the compressed air in the central cavity is discharged from the outlet duct until atmospheric pressure in the central cavity is the same with atmospheric pressure. When atmospheric pressure in the central cavity reduces, the effort increase that the atmospheric pressure in the compressed air storage area applyed to the second piston, when this effort was greater than the effort of applying first piston, the piston assembly moved right, and first piston and butt sealing ring separation, compressed air in the compressed air storage area passes through the discharge in the middle part of the butt sealing ring. At the moment, no spring exerts acting force on the piston assembly to enable the piston assembly to be closed gradually in the process of reducing the air pressure, so that the compressed air in the compressed air storage area can be completely discharged in a short time until the air pressure in the compressed air storage area is equal to the atmospheric pressure. Therefore, the object can be thrown for a long distance under the condition that the air pressure in the cylinder body is small.

The invention is further configured to: the central box is provided with a one-way hole, and a one-way valve for controlling airflow to flow from the central cavity to the compressed air storage area is arranged in the one-way hole.

Through adopting above-mentioned technical scheme, set up the check hole and install the check valve and make the air current only can follow central cavity direction flow direction compressed air storage area direction on the center box for only need aerify in aerifing to the central cavity, piston assembly promotes to butt sealing ring direction, until first piston and butt sealing ring butt. After the air pressure in the central cavity reaches the opening pressure of the one-way valve, the air can enter the compressed air storage area from the central cavity, and the step of inflating for multiple times is not needed, so that the use is convenient.

The invention is further configured to: the air faucet is characterized in that a connecting pipe communicated with an air cylinder is arranged at one end, back to the abutting sealing ring, of the cylinder body, a balance hole communicated with the connecting pipe and a compressed air storage area is formed in the surface of the cylinder body, a movable air valve is arranged in the connecting pipe, and an air faucet sealing ring matched and sealed with the inner wall of the connecting pipe is sleeved on the outer side wall of the movable air valve; an air nozzle spring is arranged between the movable air valve and the barrel body, an air needle is further arranged in the connecting pipe, the needle head of the air needle is aligned to the center of the movable air valve, and the other end of the air needle penetrates through the barrel body and extends into the central cavity.

By adopting the technical scheme, the air bottle is filled with compressed air and then is connected to the connecting pipe, the switch of the air bottle is turned on, the compressed air in the air bottle is discharged outwards, and the movable valve moves leftwards under the action of air pressure. When the movable valve moves leftwards and the air needle passes through the movable valve, the compressed air in the air bottle enters the central cavity through the air needle. When the air pressure on the two sides of the movable inflating valve is balanced, the movable inflating valve is reset under the action of the inflating valve spring and is closed after being separated from the air needle, so that the air bottle is not communicated with the central cavity any more, and compressed air in the air bottle does not enter the central cavity any more. When the air pressure in the central cavity is reduced, the compressed air in the air bottle can supply air to the central cavity after pushing the movable valve to be penetrated by the air needle, and the time is enough for the piston assembly to be opened to launch the object.

The invention is further configured to: and the outer side of the connecting pipe is formed with an external thread matched with the connecting pipe.

Through adopting above-mentioned technical scheme, the shaping external screw thread comes to be connected gas cylinder and connecting pipe stable connection in the connecting pipe outside, and the gas cylinder can not break away from the connecting pipe under compressed air's reaction force.

The invention is further configured to: and a piston sealing ring is formed on one side of the first piston facing the abutting sealing ring, and the diameter of the piston sealing ring is larger than the inner diameter of the abutting sealing ring and smaller than the diameter of the second piston.

Through adopting above-mentioned technical scheme, set up the piston sealing washer and make and can butt between first piston and the butt sealing ring and form the sealed face of round. The diameter of the piston sealing ring is smaller than the diameter of the second piston, so that the effective area of the compressed air for applying pressure to the second piston is larger than the effective area for applying pressure to the first piston, and the piston assembly can be opened under the pressure action of the compressed air.

The invention is further configured to: the hand holds in the palm the subassembly and includes the operation hand support with barrel fixed connection, installs the trigger in the operation hand support, and the middle part and the operation hand support of trigger rotate to be connected, be equipped with reset spring between trigger lower extreme and the operation hand support, the upper end of trigger has the slider along upper and lower direction sliding connection, rotates on the slider to be connected with the pole of wearing that the diameter is less than the outlet duct internal diameter, and the rubber buffer passes the one end fixed connection of outlet duct with wearing the pole.

Through adopting above-mentioned technical scheme, when pulling the trigger, the rubber buffer breaks away from, and the outlet duct is opened, and the compressed air in the central cavity is discharged from the outlet duct until atmospheric pressure in the central cavity is the same with atmospheric pressure. When acting force is not applied to the trigger, the trigger resets under the action of the spring, and the rubber plug reseals the air outlet pipe.

The invention is further configured to: the side of the lower end of the trigger is formed with a positioning groove, a positioning rod is formed at the position, opposite to the positioning groove, on the operating hand support, a reset spring is sleeved on the positioning rod, and one end of the reset spring is inserted into the positioning groove.

Through adopting above-mentioned technical scheme, come location reset spring through constant head tank and locating lever cooperation for reset spring is difficult for breaking away from.

The invention is further configured to: and an emission area is formed in one side of the cylinder body, which is opposite to the compressed air storage area and is abutted against the sealing ring.

By adopting the technical scheme, the emitting area is arranged to install the object to be emitted.

The invention is further configured to: the throwing device also comprises a throwing component, wherein the throwing component comprises a throwing barrel in threaded connection with the barrel body and a throwing object inserted in the throwing barrel.

Through adopting above-mentioned technical scheme, barrel and throwing a section of thick bamboo threaded connection come to make can change different throwing a section of thick bamboo as required.

The invention is further configured to: and a pressure sensor penetrating into the cylinder is inserted into the rear end face of the cylinder.

Through adopting above-mentioned technical scheme, detect the pressure value in the barrel through pressure sensor.

In conclusion, the beneficial technical effects of the invention are as follows:

1. after the piston assembly is opened, no spring applies acting force to the piston assembly to enable the piston assembly to be gradually closed in the process of reducing the air pressure, so that the compressed air in the compressed air storage area can be completely discharged in a short time until the air pressure in the compressed air storage area is equal to the atmospheric pressure;

2. set up the check valve and make the air current only can follow central cavity direction flow direction compressed air reservoir orientation for only need aerify in the time of aerifing in the central cavity, piston assembly promotes to butt sealing ring direction, until first piston and butt sealing ring butt, after atmospheric pressure in the central cavity reached the opening pressure of check valve, the air will follow central cavity entering compressed air reservoir in, need not carry out many times and aerify the step, convenient to use.

Drawings

FIG. 1 is a schematic cross-sectional view of an embodiment;

FIG. 2 is a schematic view, partly in section, of an embodiment;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is a schematic sectional view of the trigger and cylinder engaging portion in the embodiment;

FIG. 5 is a schematic structural diagram of a matched water rescue bomb, a fire extinguishing bomb, a fluke launching bomb, a glass breaking bomb and a training bomb;

fig. 6 is a schematic structural diagram of a gas detection bomb.

Reference numerals: 1. an air cylinder; 2. a hand rest assembly; 3. a gas cylinder; 4. a barrel; 5. a piston assembly; 6. abutting against the sealing ring; 7. an emission region; 8. a compressed air storage area; 9. a center box; 10. a central cavity; 11. a through hole; 12. a one-way hole; 13. a one-way valve; 14. an air outlet pipe; 15. a connecting pipe; 16. a balance hole; 17. a movable valve; 18. an air tap sealing ring; 19. an air tap spring; 20. air needle; 21. a piston rod; 22. a first piston; 23. a second piston; 24. a piston seal ring; 25. an operating hand support; 26. a trigger; 27. positioning a groove; 28. positioning a rod; 29. a return spring; 30. a slider; 31. penetrating a rod; 32. a rubber plug; 33. a throwing cylinder; 34. rescue bomb for water; 35. fire extinguishing bombs; 36. launching a bullet by the anchor hook; 37. breaking the glass bomb; 38. a gas scout bomb; 39. training the bullets; 40. a pressure sensor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, the multifunctional pneumatic throwing device comprises an air cylinder 1, a hand rest assembly 2 connected with the air cylinder 1, an air cylinder 3 for supplying air to the air cylinder 1 and a throwing assembly connected with the air cylinder 1.

As shown in fig. 2 and 3, the gas cylinder 1 includes a cylinder 4 and a piston assembly 5 located inside the cylinder 4. The cylindrical body 4 is cylindrical, and the left end of the cylindrical body 4 is an open end. The abutting sealing ring 6 is integrally formed in the cylinder 4 at a position close to the left end, and the inside of the cylinder 4 is divided into a left emitting area 7 and a right compressed air storage area 8 by the abutting sealing ring 6. A central box 9 is fixed in the compressed air storage area 8 through a plurality of connecting columns, and a central cavity 10 is formed in the central box 9. A through hole 11 communicated with the compressed air storage area 8 is formed in the left end face of the center box 9, a one-way hole 12 communicated with the compressed air storage area 8 is formed in the middle of the right end face of the center box 9, a one-way valve 13 is installed in the one-way hole 12, and the one-way valve 13 controls air flow to the direction of the compressed air storage area 8 only from the center cavity 10.

As shown in fig. 2 and 4, an air outlet pipe 14 is arranged between the lower position of the right end face of the central box 9 and the right end face of the cylinder 4, and the air in the central cavity 10 can be directly discharged to the outside through the air outlet pipe 14. As shown in fig. 2 and 3, a connecting pipe 15 is formed at a position close to the upper right end surface of the cylinder 4, an external thread is formed at one end of the outer side wall of the connecting pipe 15 far away from the cylinder 4, and a balance hole 16 communicated with the inside of the connecting pipe 15 is formed on the right end surface of the cylinder 4. The inside of connecting pipe 15 is installed and is followed the gliding activity inflating valve 17 of connecting pipe 15 length direction, and the lateral wall cover of activity inflating valve 17 is equipped with air cock sealing washer 18, makes to form sealed face between activity inflating valve 17 and the connecting pipe 15 through air cock sealing washer 18. An air nozzle spring 19 is arranged between the movable air valve 17 and the right end face of the cylinder 4. An air needle 20 is also arranged in the connecting pipe 15, the needle head of the air needle 20 is aligned with the center of the movable air valve 17, and the other end of the air needle 20 penetrates through the barrel 4 and extends into the central cavity 10. When the movable valve 17 is pushed to the right by the nozzle spring 19, the air needle 20 is separated from the movable valve 17, and the movable valve 17 is sealed; when the movable valve 17 is pushed to move to the left, the valve spring 19 is compressed, the air needle 20 penetrates through the movable valve 17, and the compressed air in the air bottle 3 enters the central cavity 10 through the air needle 20.

As shown in fig. 2, the piston assembly 5 includes a piston rod 21 located in the compressed air storage area 8 and a first piston 22 and a second piston 23 fixed to the piston rod 21. The piston rod 21 penetrates through the left end face of the central box 9 and penetrates into the central cavity 10, the first piston 22 is located at the left end of the piston rod 21, and the second piston 23 is located in the central cavity 10 and is close to the right end of the piston rod 21. A piston seal ring 24 is formed on the left end surface of the first piston 22, the diameter of the piston seal ring 24 is larger than the inner diameter of the abutment seal ring 6, and the diameter of the second piston 23 is larger than the diameter of the piston seal ring 24. When the piston seal ring 24 and the abutting seal ring 6 are sealed in a fitting manner, a gap is left between the second piston 23 and the left side wall inside the center box 9.

As shown in fig. 2 and 4, the hand rest assembly 2 comprises an operating hand rest 25 fixedly connected with the cylinder 4, a trigger 26 is installed in the operating hand rest 25, and the middle part of the trigger 26 is rotatably connected with the operating hand rest 25. A positioning groove 27 is formed on the right side surface of the lower end of the trigger 26, a positioning rod 28 is formed on the position, opposite to the positioning groove 27, of the operating hand support 25, a return spring 29 is sleeved on the positioning rod 28, and the other end of the return spring 29 is inserted into the positioning groove 27. The upper end of the trigger 26 is connected with a slide block 30 in a sliding manner in the vertical direction, and the slide block 30 is connected with a through rod 31 in a rotating manner. The diameter of the penetrating rod 31 is smaller than the inner diameter of the air outlet pipe 14, and one end of the penetrating rod 31 penetrating through the air outlet pipe 14 is fixedly connected with a rubber plug 32 with the diameter larger than the inner diameter of the air outlet pipe 14. When the return spring 29 is unfolded, the penetrating rod 31 is driven to move rightwards, and the rubber plug 32 is attached to the air outlet pipe 14 to form a sealing surface; when the trigger 26 is pulled to compress the return spring 29, the rubber stopper 32 no longer seals the air outlet tube 14, and the compressed air in the central cavity 10 is discharged from the air outlet tube 14.

As shown in fig. 5 and 6, the throwing assembly includes a throwing barrel 33 threadedly coupled with the barrel 4 and a throwing object inserted in the throwing barrel 33. The projectile may be a water rescue bomb 34, a fire extinguishing bomb 35, a hook launch bomb 36, a glass burst bomb 37, a gas reconnaissance bomb 38 or a training bomb 39. The throwing cylinder 33 matched with the water rescue bomb 34, the fire extinguishing bomb 35, the anchor hook launching bomb 36, the broken glass bomb 37 and the training bomb 39 is the same, and the throwing cylinder 33 matched with the gas reconnaissance bomb 38 is the large-diameter throwing cylinder 33. The water rescue bomb 34 and the anchor hook launching bomb 36 are both connected with connecting ropes, and the other ends of the connecting ropes are connected with the air cylinder 1. A pressure sensor 40 penetrating into the cylinder 4 is inserted on the rear end face of the cylinder 4.

The specific using process is as follows:

the gas cylinder 3 is filled with compressed air and then connected to the connecting pipe 15, the switch of the gas cylinder 3 is opened, the compressed air in the gas cylinder 3 is discharged outwards, and the movable valve 17 moves leftwards under the action of air pressure. When the movable valve 17 moves leftwards until the air needle 20 passes through the movable valve 17, the compressed air in the air bottle 3 enters the central cavity 10 through the air needle 20. When the air pressure in the central cavity 10 rises but does not reach the opening pressure of the check valve 13, the compressed air moves the piston assembly 5 as a whole to the left by applying a force to the second piston 23. When the first piston 22 is sealed against the abutment sealing ring 6, the piston assembly 5 can no longer move to the left, and the air pressure in the central cavity 10 continues to rise, and when the air pressure is greater than the opening pressure of the check valve 13, the compressed air enters the compressed air storage area 8 from the central cavity 10. When the air pressure on the left side and the right side of the movable air valve 17 is balanced, the movable air valve 17 is reset under the action of the air nozzle spring 19, and the air needle 20 is separated from the movable air valve 17.

When the trigger 26 is pulled, the rubber stopper 32 is separated, the air outlet pipe 14 is opened, and the compressed air in the central cavity 10 is discharged from the air outlet pipe 14 until the air pressure in the central cavity 10 is the same as the atmospheric pressure. When the air pressure in the central cavity 10 is reduced, the acting force exerted on the second piston 23 by the air pressure in the compressed air storage area 8 is increased until the acting force is larger than the acting force exerted on the first piston 22, the piston assembly 5 moves to the right, the first piston 22 is separated from the abutting sealing ring 6, and the compressed air in the compressed air storage area 8 is discharged through the middle part of the abutting sealing ring 6. Since no spring is applied to the piston assembly 5 at this time, the compressed air in the compressed air storage area 8 can be completely discharged in a short time until the air pressure in the compressed air storage area 8 becomes equal to the atmospheric pressure.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a multi-functional pneumatic ware of jettisoninging, includes inflator (1), hand rest subassembly (2) and gas cylinder (3), be equipped with compressed air storage area (8), characterized by in inflator (1): inflator (1) include barrel (4) and be located piston assembly (5) in barrel (4), and the one end of barrel (4) is the open end, and it has butt sealing ring (6) to be close to the open end shaping in barrel (4), and compressed air storage area (8) internal fixation has center box (9), and center box (9) internal shaping has central cavity (10), wears to be equipped with intercommunication center cavity (10) and atmospheric outlet duct (14) in the external world on center box (9), outlet duct (14) mouth is equipped with rubber buffer (32) that control outlet duct (14) mouth was opened and close, center box (9) are equipped with through-hole (11) of intercommunication center cavity (10) and compressed air storage area (8) towards butt sealing ring (6) one side: piston assembly (5) include piston rod (21) and connect first piston (22), second piston (23) at piston rod (21) both ends, and second piston (23) are located central cavity (10), and when first piston (22) and butt sealing ring (6) butt, leave the distance between second piston (23) and central box (9) inside wall, second piston (23) sectional area is greater than butt sealing ring (6) central area.

2. The multi-functional pneumatic tosser of claim 1, wherein: the central box (9) is provided with a one-way hole (12), and a one-way valve (13) for controlling airflow to flow from the central cavity (10) to the compressed air storage area (8) is arranged in the one-way hole (12).

3. The multi-functional pneumatic tossing machine of claim 2, wherein: one end, back to the abutting sealing ring (6), of the cylinder body (4) is provided with a connecting pipe (15) communicated with the air cylinder (1), the surface of the cylinder body (4) is provided with a balance hole (16) communicated with the connecting pipe (15) and the compressed air storage area (8), a movable inflating valve (17) is arranged in the connecting pipe (15), and an air valve sealing ring (18) matched and sealed with the inner wall of the connecting pipe (15) is sleeved on the outer side wall of the movable inflating valve (17); an air nozzle spring (19) is arranged between the movable air valve (17) and the barrel body (4), an air needle (20) is further arranged in the connecting pipe (15), the needle head of the air needle (20) is aligned to the center of the movable air valve (17), and the other end of the air needle (20) penetrates through the barrel body (4) and extends into the central cavity (10).

4. The multi-functional pneumatic tosser of claim 3, wherein: and the outer side of the connecting pipe (15) is formed with an external thread matched with the connecting pipe (15).

5. The multi-functional pneumatic tosser of claim 1, wherein: and a piston sealing ring (24) is formed on one side, facing the abutting sealing ring (6), of the first piston (22), and the diameter of the piston sealing ring (24) is larger than the inner diameter of the abutting sealing ring (6) and smaller than the diameter of the second piston (23).

6. The multi-functional pneumatic tosser of claim 1, wherein: hand holds in palm subassembly (2) include with barrel (4) fixed connection's operation hand support (25), install trigger (26) in operation hand support (25), the middle part and the operation hand support (25) of trigger (26) rotate and are connected, be equipped with reset spring (29) between trigger (26) lower extreme and operation hand support (25), the upper end of trigger (26) has slider (30) along upper and lower direction sliding connection, rotates on slider (30) to be connected with the pole (31) of wearing that the diameter is less than outlet duct (14) internal diameter, rubber buffer (32) and the one end fixed connection who passes outlet duct (14) of wearing pole (31).

7. The multi-functional pneumatic tosser of claim 6, wherein: a positioning groove (27) is formed in the side face of the lower end of the trigger (26), a positioning rod (28) is formed in the position, right facing the positioning groove (27), of the operating hand support (25), a reset spring (29) is sleeved on the positioning rod (28), and one end of the reset spring (29) is inserted into the positioning groove (27).

8. The multi-functional pneumatic tosser of claim 1, wherein: and an emission area (7) is formed in one side of the cylinder body (4) which is positioned on the side of the abutting sealing ring (6) back to the compressed air storage area (8).

9. The multi-functional pneumatic tosser of claim 1, wherein: the throwing device also comprises a throwing component, wherein the throwing component comprises a throwing cylinder (33) in threaded connection with the cylinder body (4) and a throwing object inserted in the throwing cylinder (33).

10. The multi-functional pneumatic tosser of claim 9, wherein: and a pressure sensor (40) penetrating into the cylinder body (4) is inserted into the rear end face of the cylinder body (4).