TWI522596B - Pneumatic toy launchers with limited pressure function - Google Patents

Description

Pneumatic toy launcher with pressure limiting function

This creation relates to a toy launcher, especially a pneumatic toy launcher with a pressure limiting function, which can be assembled with a PET bottle, and the PET bottle can be used as a game water rocket and can be used. Rubber blocks and BB bullets are used as toy bullets. In addition, they can limit the maximum internal pressure and avoid excessive pressure, which may cause the rocket or other toy bullets to fire too fast or explode on the launcher.

The water rocket device is a game device. Usually, the PET bottle is used as a water rocket. The water rocket is filled with a proper amount of water and then mounted on a transmitter. The water rocket is launched in a specific direction through the transmitter, thereby allowing the use. The fun of playing the game through the water rocket device.

The traditional water rocket device usually needs to connect an external air pump to the transmitter. The air pump and the transmitter are bulky and light in weight, which is not conducive to carrying, and greatly reduces the portability and applicability of the water rocket. In addition, the structure of the fasteners that hold the buckle of the PET bottle is too complicated, which is unfavorable for manufacturing and assembly.

Please refer to China's No. 102125915 "Water Rocket Launcher" invention patent application, which is the same as the invention conceived by the creator of this case, aiming at overcoming the complicated structure and large volume of the traditional water rocket launcher. The water rocket launching device disclosed in the case includes: a pressurizing rod, an inflating rod, a check valve, a spring, a launching seat rod and a trigger assembly. The trigger assembly is only available The parts with the trigger sleeve and the snap fastener, and the air pumping and the like are integrated into the water rocket launching device, so that the assembly can be simplified and the volume of the water rocket launching device can be reduced.

However, the above water rocket launching device lacks a pressure limiting structure, and during the pressurization process, the user cannot know the pressure inside the water rocket launching device, and thus may over pressurize the water rocket launching device and cause the speed of the water rocket launching. The danger of high and accidental injury, or the explosion of a water rocket that has not been fired under high pressure conditions, causes the user to be injured by exploding on the water rocket launcher.

In view of the shortcomings of the current rocket launcher lacking a pressure limiting device, the present creator has the disadvantage of over-pressurization, improving its deficiency and lack, and creating a pneumatic toy launcher with a pressure limiting function.

The main purpose of this creation is to provide a pneumatic toy launcher with a pressure limiting function, which can be assembled with a PET bottle, using a PET bottle as a water rocket for a game and launching it, or a rubber block or BB can be used. The bullet acts as a toy bullet. In addition, it can limit the maximum internal pressure and avoid the danger of excessive pressure on the rocket or other toy bullets to shoot too high or explode on the launcher.

In order to achieve the above object, the pneumatic toy launcher with the pressure limiting function includes: a pressurizing rod, which is a hollow tubular body, forming a pressurized chamber in the pressurized rod; and an inflating rod slidably The utility model is disposed in the front end of the pressure rod and is operable to pressurize the pressurized chamber of the pressure rod; a launch tube is a hollow tube body connected to the pressure rod and connected to each other to form in the launch tube a launching cymbal connected to the pressurized chamber; a trigger assembly disposed at the front end of the launching tube; and a pressure limiting device disposed at the rear end of the pressurized rod and having a body tube, an inner sleeve, a front plug, a rear plug, a pressure slider and a pressure spring fixed to the rear end of the pressure rod An assembly hole communicating with the pressure chamber of the pressure rod is formed in the body tube, and the inner sleeve is fixed in the assembly hole and is located at the front end of the body tube, and a sliding hole is formed through the inner sleeve. The sleeve is longitudinally formed at the rear end with a venting groove communicating with the assembly hole. The front plug is fixed in the inner sleeve, and a vent hole communicating with the sliding hole is formed in the front plug, and the rear plug is disposed in the assembly. A pressure relief hole is formed longitudinally on the rear end of the body tube and on the rear end of the body tube. The pressure slider is slidably disposed in the sliding hole of the inner sleeve and contacts the inner wall of the sliding hole in a gastight manner. The pressure spring is disposed in the assembly hole, and the front end and the rear end of the spring abut against the pressure slider and the rear plug respectively; wherein when the high pressure gas is pumped into the sliding hole of the inner sleeve through the vent hole, the sliding block is pressed The pressure spring moves. When the sliding block moves to make the vent hole and the sliding hole completely communicate with the venting groove, the high pressure gas is discharged through the pressure releasing hole until the pressure is lowered, so that the pressure slider is pushed back by the spring to block the vent hole and the vent groove. The tank is isolated.

By the above technical means, the pressure limiting device mounted on the pneumatic toy launcher can discharge excess high pressure gas through the balance state of the pressure slider and the pressure spring and the internal high pressure, thereby maintaining the internal pressure of the pneumatic toy launcher at A specific safety upper limit, the manufacturer of the pneumatic toy launcher can use different pressure springs to set different pressure safety upper limits according to the material and durability of the pneumatic toy launcher, thereby avoiding the water being emitted. Rockets or other toy bullets have a high rate of fire and can cause injuries. They can also avoid the explosion of the water rocket and the explosion on the transmitter.

The pressing rod has a front pressing tube and a rear pressing tube. The front pressing tube is formed with a front pressing hole, and the rear pressing tube is formed with a rear pressing hole, and the front pressing hole is formed. The rear pressurized hole is combined into the pressurizing chamber; the main body tube is fixed in the rear pressurized hole of the rear pressurized tube.

The pressurizing rod further has a check valve disposed in the pressurizing chamber and located between the front pressurizing tube and the rear pressurizing tube to prevent high pressure gas from being discharged toward the inflating rod.

A positioning groove is formed on the rear end of the pressure slider; the front end of the pressure spring extends into the positioning groove.

In the foregoing, a fixing hole is formed in the radial direction of the main body tube, and a positioning post is respectively disposed on the fixing hole; a manual control hole which is connected to the pressure relief hole is formed longitudinally at the rear end of the rear plug, and is formed radially on the rear plug. There are two class holes which are generally Z-shaped and combined with the positioning post. Each class hole has a plurality of class passages so that the positioning post can be positioned in different class passages, and the rear plug is fixed at different depths of the assembly hole. Among them.

a plurality of coupling holes are formed in the radial direction of the rear pressing pipe, and a coupling member penetrating into the rear pressure hole is respectively disposed on the coupling hole, and a fixing ring groove is radially formed on the outer wall of the front end of the body pipe. The coupling member penetrates into the fixing ring groove.

A sealing gasket is fixed on the outer wall of the pressure slider to make the pressure sliding block airtightly contact the inner wall of the sliding hole.

A communication tube connecting the launch tube is formed on the rear pressing tube, and a gas passage is formed in the connecting tube to communicate with the pressurizing chamber of the pressurizing rod and the emitter of the launch tube.

A grip is disposed between the front pressing tube and the launch tube.

The front end of the front pressing tube is formed with a coupling screw seat; a rotatable coupling nut is disposed in front of the rear pressing tube for being coupled to the coupling screw seat.

10‧‧‧Pre-pressurized tube

100‧‧‧Pre-pressurized hole

11‧‧‧ Combined with screw seat

15‧‧‧ grip

20‧‧‧After pressing tube

200‧‧‧ rear pressure hole

205‧‧‧Connected parts

25‧‧‧Connected pipe

250‧‧‧ gas passage

205‧‧‧Combination hole

21‧‧‧Combined nuts

28‧‧‧ check valve

30‧‧‧Inflating rod

40‧‧‧ launch tube

400‧‧‧ Launch Vehicle

45‧‧‧ pressure gauge

50‧‧‧ Trigger assembly

60‧‧‧Limiting device

61‧‧‧ body tube

610‧‧‧Assembled holes

611‧‧‧Fixed holes

613‧‧‧Fixed ring groove

615‧‧‧Positioning column

62‧‧‧Inner casing

620‧‧‧Sliding hole

625‧‧‧ Ventilation trench

63‧‧‧ 前塞

631‧‧‧Ventinel

64‧‧‧ Pressure slider

641‧‧‧ positioning slot

645‧‧‧Sealing washer

65‧‧‧pressure spring

66‧‧‧后塞

660‧‧‧Manual control hole

661‧‧‧Relief hole

90‧‧‧Water Rocket

Figure 1 is a three-dimensional appearance of the creation combined with a water rocket.

Figure 2 is another perspective view of the creation combined with the water rocket.

Figure 3 is a partial exploded view of the creation of the water rocket.

Figure 4 is an exploded perspective view of the pressure limiting device of the present invention.

FIG. 5 is another perspective exploded view of the pressure limiting device of the present invention.

Figure 6 is a side cross-sectional view of the creation and water rocket.

Figure 7 is a side cross-sectional view of the pressure limiting device of the present invention.

FIG. 8 is a schematic diagram of the operation of FIG.

Figure 9 is a cross-sectional view showing the end face of the pressure limiting device of the present invention.

Referring to FIG. 1 and FIG. 2, the pneumatic toy launcher with limited pressure function can be assembled as a water rocket launcher with a water rocket 90. The pneumatic toy launcher includes: a pressurizing rod and an inflating rod 30. A launch tube 40, a trigger assembly 50, and a pressure limiting device 60.

Referring to FIG. 3 and FIG. 6, the pressurizing rod is a hollow tube body, and a pressurizing chamber is formed in the pressurizing rod. The pressure rod may be integrally formed, or may be assembled to have a front pressure tube 10 and a rear pressure tube 20.

A front pressing hole 100 is formed in the front pressing tube 10, and a coupling screw 11 is formed at the rear end of the front pressing tube 10.

A rear pressurizing hole 200 is formed in the rear pressurizing pipe 20, and the front pressurizing hole 100 and the rear pressurizing hole 200 are combined into the pressurizing chamber. A rotatable coupling nut 21 is disposed in front of the rear pressing tube 20 to be coupled to the coupling screw 11. A plurality of coupling holes 204 are formed in the rear pressing pipe 20 in the radial direction, and a coupling member 205 penetrating into the rear pressure hole 200 is respectively disposed on the coupling hole 204. Further, a rear communication tube 20 is formed with a communication tube 25 connecting the emission tube 40, and a gas passage 250 is formed in the communication tube 25 to communicate with the pressure chamber of the pressure rod.

Further, the pressurizing rod may further have a check valve 28 which is disposed in the pressurizing chamber and located between the front pressurizing tube 10 and the rear pressurizing tube 20 to prevent the high pressure gas from being discharged toward the inflating rod.

The pumping rod 30 is slidably disposed in the front end of the pressure rod, and is actuatable to pressurize the pressurizing chamber of the pressure rod.

The launching tube 40 is a hollow tubular body connected to and in communication with the pressurized rod. A launching cymbal 400 is formed in the launching tube 40 in communication with the pressurized chamber and the gas passage 250. In addition, a pressure gauge 45 can be mounted on the launch tube for the user to know the pressure value of the internal high pressure air.

The trigger assembly 50 is disposed at the front end of the launch tube 40.

4 and FIG. 5, the pressure limiting device 60 is disposed at the rear end of the pressure rod, and has a body tube 61, an inner sleeve 62, a front plug 63, a back plug 66, and a pressure slider 64. And a pressure spring 65.

Referring to FIGS. 7 and 8, the body tube 61 is fixed to the rear end of the pressure rod and can be fixed in the rear pressure hole 200 of the rear pressure tube 20. An assembly hole 610 communicating with the pressurizing chamber of the pressurizing rod is formed in the body tube 61. A fixing ring groove 613 is formed radially on the outer wall of the front end of the body tube 61 for the coupling member 205 to penetrate the fixing ring groove 613.

The inner sleeve 62 is fixed in the assembly hole 610 and is located at the front end of the main body tube 61. A sliding hole 620 is formed in the inner sleeve 62. The inner sleeve 62 is longitudinally formed at a rear end thereof and communicates with the assembly hole 610. Venting groove 625. Two fixing holes 611 are formed in the radial direction of the main body tube 61, and a positioning post 615 is respectively disposed on the fixing hole 611.

The front plug 63 is fixed in the inner sleeve 62, and a vent hole 631 communicating with the sliding hole 620 is formed in the front plug 63.

Referring to FIG. 9 further, the back plug 66 is disposed in the assembly hole 610 and on the rear end of the body tube 61. A pressure relief hole 661 is formed in the longitudinal direction of the back plug 66. The rear plug 66 is longitudinally formed at the rear end with a manual control hole 660 communicating with the pressure relief hole 661. The manual control hole 660 allows the finger to extend into the boundary to rotate the rear plug 66 by friction. Two substantially Z-shaped turns are formed in the radial direction of the back plug 66 and are positioned The column 615 has a combination of class holes 665, and each class hole 665 has a plurality of class segments so that the positioning posts 615 can be positioned within different class segments and the back plugs 66 are secured in different depths of the assembly holes 610.

The pressure slider 64 is slidably disposed in the sliding hole 620 of the inner sleeve 62 and contacts the inner wall of the movable hole in a gastight manner. A positioning groove 641 is formed on the rear end of the pressure slider 64. A sealing gasket 645 is fixed to the outer wall of the pressure sliding block 64 to make the pressure sliding block 64 airtightly contact the inner wall of the sliding hole 620.

The pressure spring 65 is disposed in the assembly hole 610, and the front end and the rear end of the spring abut against the pressure slider 64 and the rear plug 66, respectively. Further, the front end of the pressure spring 65 can extend into the positioning groove 641 of the pressure slider 64.

Wherein, when the high pressure gas is pumped into the sliding hole 620 of the inner sleeve 62 through the vent hole 631, the sliding block is pressed to move toward the pressure spring 65, and when the sliding block moves to the vent hole 631 and the sliding hole 620 completely with the vent groove When the slots 625 are in communication, the high pressure gas is discharged through the pressure relief holes 661 until the pressure drop causes the pressure slider 64 to be pushed back by the springs to the blocking vents 631 from the venting grooves 625.

In the preferred embodiment of the present invention, a grip 15 is disposed between the front pressing tube 10 and the launch tube 40.

By the above technical means, the pressure limiting device 60 mounted on the pneumatic toy launcher can discharge excess high-pressure gas through the balance state of the pressure slider 64 and the pressure spring 65 and the internal high pressure, thereby allowing the interior of the pneumatic toy launcher. The pressure is maintained at a specific safety upper limit. The manufacturer of the pneumatic toy launcher can use different pressure springs 65 to set different pressure safety upper limits according to the material and durability of the pneumatic toy launcher. The launched water rocket 90 or other toy bullets have a high rate of fire and can cause injury, and can also prevent the water rocket from being too high and causing an explosion on the launcher to injure the user. In addition, the class hole 665 on the back plug 66 and the manual control hole 660 cooperate with the positioning post 615 to allow the user to control the depth of the back plug 66 deep into the body tube 61, thereby increasing or decreasing the preset compression amount of the pressure spring 65, the pressure spring The higher the preset compression of 65, the higher the internal pressure safety upper limit of the pneumatic toy launcher, thereby adjusting the pressure safety upper limit according to different products without replacing any parts.

10‧‧‧Pre-pressurized tube

11‧‧‧ Combined with screw seat

20‧‧‧After pressing tube

21‧‧‧Combined nuts

25‧‧‧Connected pipe

30‧‧‧Inflating rod

40‧‧‧ launch tube

45‧‧‧ pressure gauge

50‧‧‧ Trigger assembly

60‧‧‧Limiting device

90‧‧‧Water Rocket

Claims (10)

A pneumatic toy launcher with a pressure limiting function, comprising: a pressurizing rod, which is a hollow tube body, forming a pressurizing chamber in the pressurizing rod; and an inflating rod slidably arranged on the pressing rod In the front end, the pressurized chamber of the pressure rod is pressurized and actuated; a launch tube is a hollow tube body connected to the pressure rod and connected to each other, and a press chamber is formed in the launch tube. a connected launcher; a trigger assembly disposed at the front end of the launch tube; and a pressure limiting device disposed at the rear end of the pressurizing rod and having a body tube, an inner sleeve, a front plug, a rear plug, and a a pressure slider and a pressure spring fixed to the rear end of the pressure rod, wherein an assembly hole communicating with the pressure chamber of the pressure rod is formed in the body tube, and the inner sleeve is fixed in the assembly hole and A sliding hole is formed through the front end of the body tube, and a venting groove is formed in the longitudinal direction of the inner sleeve. The front plug is fixed in the inner sleeve. a vent hole communicating with the sliding hole is formed through the plug, and the back plug is disposed at A pressure relief hole is formed longitudinally on the rear end of the body tube and on the rear end of the body tube. The pressure slider is slidably disposed in the sliding hole of the inner sleeve and is in airtight manner to contact the sliding hole. a pressure spring disposed in the assembly hole, the front end and the rear end of the spring abut against the pressure slider and the rear plug respectively; wherein the pressure slider is pressed when the high pressure gas is pumped into the inner sleeve sliding hole through the vent hole And moving to the pressure spring, when the pressure slider moves to make the vent hole and the sliding hole completely communicate with the venting groove, the high pressure gas is discharged through the pressure releasing hole until the pressure is lowered, so that the pressure slider is pushed back by the spring to the blocking vent hole. Isolated from the venting groove. The pneumatic toy launcher with a pressure limiting function according to claim 1, wherein the pressurizing rod has a front pressing tube and a rear pressing tube, and the front pressing tube is formed with a front pressing hole, and thereafter plus A rear pressing hole is formed through the pressure tube, and the front pressing hole and the rear pressing hole are combined into the pressing chamber; the main tube is fixed in the rear pressing hole of the rear pressing tube. A pneumatic toy launcher with a pressure limiting function as claimed in claim 2, wherein the pressurizing rod further has a check valve disposed in the pressurized chamber between the front and rear pressurizing tubes , to avoid high pressure gas discharge in the direction of the pumping rod. The pneumatic toy launcher with a pressure limiting function according to any one of claims 1 to 3, wherein a positioning groove is formed on the rear end of the pressure slider; the front end of the pressure spring extends into the positioning groove. The pneumatic toy launcher with a pressure limiting function according to claim 4, wherein two fixing holes are formed in the radial direction of the main body tube, and a positioning post is respectively disposed on the fixing hole; a manual control hole in which the pressure holes are connected, a radial hole penetrating through the rear plug is formed with two substantially Z-shaped jaws and combined with the positioning column, and each class hole has a plurality of class segments so that the positioning column can be positioned Within the different class segments, and the back plugs are fixed in different depths of the assembly holes. The pneumatic toy launcher with a pressure limiting function according to claim 5, wherein a plurality of coupling holes are formed in the radial direction of the rear pressing tube, and a coupling member is inserted into the pressing hole in the coupling hole, A fixing ring groove is radially formed on the outer wall of the front end of the body tube for the coupling member to penetrate the fixing ring groove. The pneumatic toy launcher with a pressure limiting function according to claim 6, wherein a sealing gasket is fixed on the outer wall of the pressure sliding block to make the pressure sliding block airtightly contact the inner wall of the sliding hole. The pneumatic toy launcher with a pressure limiting function according to claim 7, wherein the rear pressurizing tube protrudes to form a communication tube connecting the launch tube, and a gas passage is formed in the communication tube to pressurize the pressure rod. The chamber and the launcher of the launch tube are connected to each other. A pneumatic toy launcher with a pressure limiting function as claimed in claim 8, wherein a grip is disposed between the front pressing tube and the launch tube. The pneumatic toy launcher with a pressure limiting function according to claim 9, wherein a rear end of the front pressing tube is formed with a coupling screw seat; and a rear rotatable coupling nut is disposed at the front of the rear pressing tube to be coupled to the coupling screw seat. on.