CN210662305U - Gas cylinder piercing device - Google Patents
Gas cylinder piercing device Download PDFInfo
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- CN210662305U CN210662305U CN201921188336.XU CN201921188336U CN210662305U CN 210662305 U CN210662305 U CN 210662305U CN 201921188336 U CN201921188336 U CN 201921188336U CN 210662305 U CN210662305 U CN 210662305U
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- sliding block
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- pipe
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Abstract
The utility model provides a gas cylinder piercing device, which comprises a containing pipe with openings at two ends, an end cover, a slide block, a ball valve and a punch pin, wherein the containing pipe is detachably connected with a gas cylinder through a first end, and a first through hole and a second through hole are arranged on the side wall of the containing pipe; the end cover is detachably connected with the second end of the accommodating pipe; the sliding block is arranged in the accommodating pipe and is in sliding connection with the inner surface of the accommodating pipe, and a first elastic part and a second elastic part are arranged between the first end of the sliding block and the end cover; the surface of the sliding block is provided with a conical groove matched with the first through hole; when the conical groove is aligned with the first through hole, the spherical valve penetrates through the first through hole and is placed in the conical groove, and the spherical surface of the spherical valve is contacted with the inner side surface of the conical groove; the second through hole is positioned between the sliding block and the first end of the accommodating pipe; the first end of the punching needle is fixed on the second end of the sliding block and is provided with a third through hole which penetrates from the second end to the side face. The utility model discloses stable in structure, start-up range is big, and the pulling force is unanimous, and factor of safety is high.
Description
Technical Field
The utility model belongs to the technical field of safety equipment, especially, relate to a gas cylinder piercing device.
Background
At present, small carbon dioxide gas cylinders in the market are widely applied, and compressed carbon dioxide is utilized to rapidly inflate the gas cylinders, such as life jacket inflation, bicycle tire inflation, driving airbag vest inflation and the like. The existing driving safety air bag waistcoat is inflated by utilizing a carbon dioxide gas cylinder and generally adopts electronic induction starting and mechanical starting, but the existing mechanical starting has the problems of limited starting angle, inconsistent pulling force for pulling a spherical valve open during starting or failure in starting due to abnormal triggering of a starting spring, low safety coefficient and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gas cylinder impales device, stable in structure, the start-up range is big, and the pulling force is unanimous, and factor of safety is high.
The utility model discloses a realize through following technical scheme:
a gas cylinder piercing device comprises a containing pipe and an end cover, wherein the two ends of the containing pipe are provided with openings, the containing pipe is detachably connected with a gas cylinder through a first end, and a first through hole and a second through hole are formed in the side wall of the containing pipe; the end cover is detachably connected with the second end of the accommodating pipe; the gas cylinder piercing device also comprises a sliding block, a ball valve and a punching needle, wherein the sliding block is arranged in the accommodating pipe and is in sliding connection with the inner surface of the accommodating pipe, and a first elastic part and a second elastic part are arranged between the first end of the sliding block and the end cover;
the surface of the sliding block is provided with a conical groove matched with the first through hole;
when the conical groove is aligned with the first through hole, the spherical valve penetrates through the first through hole and is placed in the conical groove, and the spherical surface of the spherical valve is contacted with the inner side surface of the conical groove;
the second through hole is positioned between the sliding block and the first end of the accommodating pipe;
the first end of the punching needle is fixed on the second end of the sliding block and is provided with a third through hole which penetrates from the second end to the side face.
Compared with the prior art, the beneficial effects of the utility model are that: the structure is stable, the spherical surface of the spherical valve is clamped between the hole wall of the first through hole and the conical groove through the elastic force provided by the elastic piece, the spherical valve can freely rotate in the conical groove, the elastic force of the elastic piece is overcome during starting, the spherical valve can be pulled out, the starting range is wide, the spherical surface of the spherical valve is tangent to a generatrix of the conical surface in the conical groove, and the stress of the spherical valve in all directions is kept consistent; the punching needle is provided with a third through hole penetrating from the second end to the side face, and gas in the gas cylinder is discharged from the third through hole of the punching needle and then discharged from the second through hole of the containing pipe, so that the gas can be discharged from the second through hole of the containing pipe more intensively, and the slider is prevented from being directly impacted when the gas in the gas cylinder is discharged, so that the slider overcomes the elasticity of the elastic piece to slide to the first through hole, and gas leakage is avoided; through installing first elastic component and second elastic component, use two elastic component to increase towards needle impulsive force, can prevent that one of them elastic component from becoming invalid and leading to the start failure simultaneously, improve the factor of safety of device.
Furthermore, the middle part of the end cover is vertically and fixedly connected with a round pipe, and the second elastic piece is sleeved on the round pipe and is positioned in the first elastic piece. The arrangement can prevent the second elastic piece from bending or separating from the set installation position when the second elastic piece is pressed or the elastic force is released, and simultaneously prevent the second elastic piece from generating interference on the first elastic piece in the working process.
Furthermore, the second end of the accommodating pipe is in threaded connection with the end cover, and the outer surface of the end cover is a knurled surface and is provided with a flat position at one end far away from the accommodating pipe. The outer surface of the end cover is a knurled surface, the end cover can be manually rotated to be installed at the second end of the accommodating pipe, and a flat position is arranged at one end far away from the accommodating pipe, so that the end cover can be installed at the second end of the accommodating pipe by using tools such as a wrench.
Further, at least one first sealing ring is arranged between the periphery of the sliding block close to the second end of the sliding block and the inner side wall of the accommodating pipe, and the first through hole and the second through hole of the accommodating pipe are sealed and separated by the first sealing ring. This setting can be ensured to hold and be sealed between the inside first through-hole and the second through-hole that corresponds of pipe all the time, prevents that gaseous direction to first through-hole from revealing, guarantees the leakproofness.
Furthermore, the slider is provided with annular grooves with the same number as the first sealing rings, and the first sealing rings are arranged in the annular grooves.
Further, a nut is fixed in the first end of the accommodating pipe and is in threaded connection with the opening of the gas cylinder through the nut.
Furthermore, a first limiting step is arranged on the inner side wall of one end, close to the punching needle, of the nut. Because the existence of first spacing step, the gas cylinder can install it and can not continue to rotate when installing the first end that holds the pipe, avoids the not in place condition of gas cylinder installation to appear.
Furthermore, a second limiting step is arranged on the inner side wall of the accommodating pipe between the first through hole and the second through hole and close to the second through hole. The second limit step limits the sliding position of the sliding block, and limits the distance of the punch pin inserted into the bottle opening sealing film of the gas cylinder, so that the gas cylinder can exhaust more smoothly.
Further, dash the needle and include needle body and syringe needle, the first end of needle body is fixed and is served at the second of slider, and the syringe needle is held the slope by the second of needle body and is extended and form, and its cross sectional shape is the wedge, and the one end of keeping away from the needle body is the inclined plane. The needle head is gradually enlarged, so that the needle head is not easy to be separated from the bottle opening sealing film backwards after being inserted into the bottle opening sealing film forwards.
Furthermore, an arc-shaped groove is formed in one side, opposite to the inclined plane, of the punching needle, and the third through hole is located in the middle of the inclined plane and communicated with the arc-shaped groove.
Drawings
Fig. 1 is an exploded view of the gas cylinder piercing device of the present invention;
fig. 2 is a structural diagram of the gas cylinder piercing device of the present invention;
fig. 3 is a cross-sectional view of the gas cylinder piercing device of the present invention;
fig. 4 is a schematic structural view of a punch pin in the gas cylinder piercing device of the present invention;
fig. 5 is a top view of a punch pin in the gas cylinder piercing device of the present invention;
FIG. 6 is a side view of a punch pin in the gas cylinder piercing apparatus of the present invention;
fig. 7 is a cross-sectional view of the punch pin in the gas cylinder piercing device of the present invention.
In the figure, 1-containing tube, 11-first through hole, 12-second through hole, 13-nut, 131-first limit step, 14-second limit step, 15-mounting plate, 2-end cover, 21-round tube, 22-flat position, 3-slide block, 31-conical groove, 32-annular groove, 4-ball valve, 41-ball part, 42-pulling part, 43-rope, 5-punching needle, 51-third through hole, 52-needle body, 53-needle head, 531-inclined surface, 54-arc groove, 6-gas cylinder, 7-first elastic part, 8-second elastic part, 9-first sealing ring, 10-second sealing ring
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Referring to fig. 1 to 3, fig. 1 is an exploded view of the gas cylinder puncturing device of the present invention, fig. 2 is a structural view of the gas cylinder puncturing device of the present invention, and fig. 3 is a sectional view of the gas cylinder puncturing device of the present invention. A gas cylinder piercing device comprises a containing pipe 1 with two open ends, an end cover 2, a slide block 3, a ball valve 4 and a punch needle 5, wherein the containing pipe 1 is detachably connected with a gas cylinder 6 through a first end, and a first through hole 11 and a second through hole 12 are formed in the side wall of the containing pipe; the end cover 2 is detachably connected with the second end of the accommodating pipe 1; the sliding block 3 is arranged in the accommodating pipe 1 and is connected with the inner surface of the accommodating pipe 1 in a sliding way, and a first elastic part 7 and a second elastic part 8 are arranged between the first end of the sliding block and the end cover 2; the surface of the sliding block 3 is provided with a conical groove 31 matched with the first through hole 11; when the conical groove 31 is aligned with the first through hole 11, the ball valve 4 passes through the first through hole 11 and is placed in the conical groove 31, and the spherical surface of the ball valve is in contact with the inner side surface of the conical groove 31; the second through hole 12 is positioned between the sliding block 3 and the first end of the accommodating pipe 1; the first end of the punch pin 5 is fixed on the second end of the slide block 3, and is provided with a third through hole 51 which penetrates from the second end to the side surface.
First through-hole 11 and second through-hole 12 are located respectively and hold the different both sides of pipe 1 lateral wall, hold the second end of pipe 1 and be pipe threaded connection with end cover 2, hold the first end internal fixation of pipe 1 and have nut 13, through the bottleneck threaded connection of nut 13 with gas cylinder 6. After the gas cylinder 6 releases gas, the gas cylinder 6 is convenient to replace. The inner side wall of one end of the nut 13 close to the punching needle 5 is provided with a first limit step 131. Due to the existence of the first limit step 131, when the gas cylinder 6 is installed at the first end of the accommodating pipe 1, the gas cylinder 6 can be installed to be in contact with the first limit step 131, namely, the gas cylinder 6 cannot rotate continuously, and the situation that the gas cylinder 6 is not installed in place is avoided. And a second limiting step 14 is arranged on the inner side wall of the accommodating pipe 1 between the first through hole 11 and the second through hole 12 and close to the second through hole 12. The second limit step 14 limits the sliding position of the sliding block 3, and limits the distance of the punch pin 5 inserted into the bottle opening sealing film of the gas bottle 6, so that the gas bottle 6 can exhaust more smoothly.
A circular tube 21 is vertically and fixedly connected to the middle part of the end cover 2, and the second elastic member 8 is sleeved on the circular tube 21 and is located in the first elastic member 7. This arrangement prevents the second elastic member 8 from being bent or separated from the predetermined installation position when the second elastic member 8 is pressed or the elastic force is released, and prevents the second elastic member 8 from interfering with the first elastic member 7 during operation. Specifically, in the present embodiment, the first elastic member 7 and the second elastic member 8 are both springs. The outer surface of the end cover 2 is a knurled surface, and one end far away from the accommodating pipe 1 is provided with a flat position 22. The outer surface of the end cover 2 is a knurled surface, the end cover 2 can be manually rotated to be installed on the second end of the accommodating tube 1, and the end far away from the accommodating tube 1 is provided with a flat position 22, so that the end cover 2 can be installed on the second end of the accommodating tube 1 by using a tool such as a wrench.
At least one first sealing ring 9 is arranged between the periphery of the sliding block 3 close to the second end of the sliding block and the inner side wall of the accommodating pipe 1, and the first through hole 11 and the second through hole 12 of the accommodating pipe 1 are sealed and separated by the first sealing ring 9. This arrangement can ensure that the inside of the accommodating tube 1 is always sealed between the corresponding first through hole 11 and the corresponding second through hole 12, prevent gas from leaking to the direction of the first through hole 11, and ensure the sealing property. Preferably, the slider 3 is provided with an equal number of annular grooves 32 as the number of first sealing rings 9, the first sealing rings 9 being arranged in the annular grooves 32. Preferably, the number of first sealing rings 9 is two. Preferably, be equipped with second sealing washer 10 in the second through-hole 12, when the utility model discloses when installing on the gasbag vest, second sealing washer 10 is located between the air inlet of second through-hole 12 and gasbag vest, prevents to leak for the gas leakage of the in-process of gasbag vest aerifing.
The ball valve 4 includes a ball portion 41 and a pulling portion 42, the ball portion 41 is located in the conical recess 31 and is tangent to the inner sidewall of the conical recess 31, one end of the pulling portion 42 is fixedly connected to the ball portion 41, and the other end is fixed with a rope 43.
Referring to fig. 4 to 7, fig. 4 is a schematic structural view of a punch pin 5 of the gas cylinder puncturing device of the present invention; fig. 5 is a top view of the punch pin 5 of the gas cylinder piercing device of the present invention; fig. 6 is a side view of the punch needle 5 in the gas cylinder piercing device of the present invention; fig. 7 is a cross-sectional view of the punch pin 5 in the gas cylinder piercing apparatus of the present invention. The punch needle 5 comprises a needle body 52 and a needle head 53, the first end of the needle body 52 is fixed on the second end of the sliding block 3, the needle head 53 is formed by extending the second end of the needle body 52 outwards in an inclined manner, the cross section of the needle head is wedge-shaped, and one end far away from the needle body 52 is an inclined plane 531. That is, the second end of the cylindrical needle body 52 extends obliquely outward to form an extension section, and a bevel surface is cut from the first end to the second end of the extension section to form a needle head. Specifically, an angle between an extension line of a connection line between the first end and the second end of the needle body 52 and an extension line extending outward and obliquely from the second end thereof is 2.5 degrees (an angle θ in fig. 5), that is, the second end of the needle body 52 extends outward at an oblique angle of 2.5 degrees, the angle of the inclined surface 531 is 25 degrees, and the inclined surface is elliptical. The needle 53 is gradually enlarged, so that the needle 53 is not easy to be separated from the bottle mouth sealing film backwards after being inserted into the bottle mouth sealing film of the gas bottle 6 forwards. Preferably, an arc groove 54 is formed on the side of the punch pin 5 opposite to the inclined surface 531, and the third through hole 51 is located in the middle of the inclined surface 531 and is communicated with the arc groove 54. Preferably, the opening of the arc-shaped groove 54 faces the second through hole 12.
When the gas cylinder puncturing device is used, the accommodating tube 1 is inclined to enable the sliding block 3 to slide in the accommodating tube 1, after the conical groove 31 on the sliding block 3 is aligned with the first through hole 11 of the accommodating tube 1, the ball valve 4 is placed on the conical groove 31 of the sliding block 3 from the first through hole 11, the first elastic piece 7 and the second elastic piece 8 are placed in the accommodating cavity to be tightly attached to the second end of the sliding block 3, then the end cover 2 is installed on the second end of the accommodating tube 1 and is tightly twisted, at the moment, the first elastic piece 7 and the second elastic piece 8 are in a compression state, and force towards the first end of the accommodating tube 1 is applied to the sliding block 3, because the ball valve 4 is placed on the conical groove 31 of the sliding block 3, the conical groove 31 also pushes the ball valve 4 to be tightly propped against the hole wall of the first through hole 11, so that the spherical part 41 of the ball valve 4 is clamped between the inner side wall of the accommodating tube 1 and the conical groove 31, the ball valve 4 is prevented from being separated from the accommodating tube 1, the pulling part 42 is positioned outside the accommodating tube 1 at the moment, the ball valve 4 can rotate freely in the conical groove 31, the spherical surface is tangent to the generatrix of the inner conical surface of the conical groove 31, and the gas cylinder 6 is installed on the first end of the accommodating tube 1 after the end cover 2 is screwed tightly. The gas cylinder 6 is mainly used for storing compressed gas, and the gas cylinder 6 can contain compressed liquid carbon dioxide. After the device is assembled, the device is installed on an air bag waistcoat, specifically, an installation plate 15 is arranged on one side, located at the second through hole 12, of the accommodating tube 1 of the device, the device is installed on the air bag waistcoat through the installation plate 15, the second through hole 12 of the accommodating tube 1 is connected with an air inlet of the air bag waistcoat, and one end of the rope 43 is fixed on a vehicle through a movable buckle. When an accident happens, the rope 43 is pulled by the force in any direction to exceed the elastic force of the first elastic piece 7 and the second elastic piece 8, the ball valve 4 overcomes the elastic force of the first elastic piece 7 and the second elastic piece 8 and the obstruction of the inner side wall of the accommodating pipe 1 to be separated from the accommodating pipe 1, the two elastic pieces release the elastic force simultaneously to push the sliding block 3 to the gas cylinder 6, the impact pin 5 punctures the bottle mouth sealing film of the opening of the gas cylinder 6, the gas in the gas cylinder 6 is discharged through the third through hole 51 on the impact pin 5 and then enters the gas inlet of the airbag waistcoat from the second through hole 12 of the accommodating pipe 1, and the airbag waistcoat is inflated and expanded.
Compared with the prior art, the beneficial effects of the utility model are that: the structure is stable, the spherical surface of the spherical valve 4 is clamped between the hole wall of the first through hole 11 and the conical groove 31 through the elastic force provided by the elastic piece, the spherical valve 4 can freely rotate in the conical groove 31, the elastic force of the elastic piece is overcome during starting, the spherical valve 4 can be pulled out, the starting range is wide, the spherical surface of the spherical valve 4 is tangent to a bus of the inner conical surface of the conical groove 31, and the stress of the spherical valve 4 in all directions is kept consistent; the punching needle 5 is provided with a third through hole 51 which penetrates from the second end to the side surface, and the gas in the gas cylinder 6 is discharged from the third through hole 51 of the punching needle 5 and then discharged from the second through hole 12 of the containing pipe 1, so that the gas can be discharged from the second through hole 12 of the containing pipe 1 more intensively, and meanwhile, the gas in the gas cylinder 6 is prevented from directly impacting the sliding block 3 when being discharged, so that the sliding block 3 slides to the first through hole 11 by overcoming the elasticity of the elastic part, and gas leakage is avoided; by installing the first elastic piece 7 and the second elastic piece 8, the impact force of the punching needle 5 is increased by using the double elastic pieces, and meanwhile, the starting failure caused by the failure of one elastic piece can be prevented, and the safety factor of the device is improved.
The present invention is not limited to the above embodiment, and if various modifications or variations of the present invention do not depart from the spirit and scope of the present invention, they are intended to be covered if they fall within the scope of the claims and the equivalent technology of the present invention.
Claims (10)
1. A gas cylinder piercing device comprises a containing pipe and an end cover, wherein the two ends of the containing pipe are provided with openings, the containing pipe is detachably connected with a gas cylinder through a first end, and a first through hole and a second through hole are formed in the side wall of the containing pipe; the end cover is detachably connected with the second end of the accommodating pipe; the ball valve is characterized by further comprising a sliding block, a ball valve and a punching needle, wherein the sliding block is arranged in the accommodating pipe and is in sliding connection with the inner surface of the accommodating pipe, and a first elastic piece and a second elastic piece are arranged between the first end of the sliding block and the end cover;
the surface of the sliding block is provided with a conical groove matched with the first through hole;
when the conical groove is aligned with the first through hole, the ball valve penetrates through the first through hole and is placed in the conical groove, and the spherical surface of the ball valve is in contact with the inner side surface of the conical groove;
the second through hole is positioned between the sliding block and the first end of the accommodating pipe;
the first end of the punching needle is fixed on the second end of the sliding block, and a third through hole penetrating from the second end to the side face is formed in the punching needle.
2. A gas cylinder puncturing device according to claim 1, wherein a round tube is fixedly connected to the middle of the end cap in a vertical manner, and the second elastic member is sleeved on the round tube and located in the first elastic member.
3. A gas cylinder puncturing device according to claim 1, wherein the second end of the accommodating tube is in tube thread connection with the end cap, the outer surface of the end cap is a knurled surface, and the end far away from the accommodating tube is provided with a flat position.
4. A gas cylinder puncturing device according to claim 1, wherein at least one first sealing ring is provided between the outer periphery of the slider near the second end thereof and the inner side wall of the accommodating tube, the first sealing ring sealing the first through hole of the accommodating tube from the second through hole.
5. A gas cylinder puncturing device according to claim 4, wherein the slider is provided with an equal number of annular grooves as the first sealing rings, the first sealing rings being disposed in the annular grooves.
6. A gas cylinder puncturing device according to claim 1, wherein a nut is fixed in the first end of the accommodating tube and is in threaded connection with the mouth of the gas cylinder through the nut.
7. A gas cylinder puncturing device as claimed in claim 6, wherein a first stop step is provided on the inner side wall of the nut at the end adjacent to the punch pin.
8. A gas cylinder puncturing device according to claim 1, wherein a second limiting step is provided on the inner side wall of the accommodating tube at a position between the first through hole and the second through hole and close to the second through hole.
9. A gas cylinder puncturing device as claimed in claim 1, wherein the punch pin comprises a pin body and a pin head, the first end of the pin body is fixed on the second end of the slider, the pin head is formed by extending the second end of the pin body in an outward inclined manner, the cross-sectional shape of the pin head is wedge-shaped, and the end far away from the pin body is an inclined surface.
10. A gas cylinder puncturing device according to claim 9, wherein an arc-shaped groove is formed in the side of the punch pin opposite to the inclined surface, and the third through hole is located in the middle of the inclined surface and is communicated with the arc-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921188336.XU CN210662305U (en) | 2019-07-25 | 2019-07-25 | Gas cylinder piercing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921188336.XU CN210662305U (en) | 2019-07-25 | 2019-07-25 | Gas cylinder piercing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210662305U true CN210662305U (en) | 2020-06-02 |
Family
ID=70816108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921188336.XU Active CN210662305U (en) | 2019-07-25 | 2019-07-25 | Gas cylinder piercing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210662305U (en) |
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2019
- 2019-07-25 CN CN201921188336.XU patent/CN210662305U/en active Active
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