CN212018270U - Spray gun amplitude adjusting device with high leakproofness - Google Patents
Spray gun amplitude adjusting device with high leakproofness Download PDFInfo
- Publication number
- CN212018270U CN212018270U CN202020611933.5U CN202020611933U CN212018270U CN 212018270 U CN212018270 U CN 212018270U CN 202020611933 U CN202020611933 U CN 202020611933U CN 212018270 U CN212018270 U CN 212018270U
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- Prior art keywords
- amplitude
- wall
- rubber sleeve
- adjusting screw
- hole
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- 239000007921 spray Substances 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 230000033228 biological regulation Effects 0.000 claims description 19
- 239000012528 membrane Substances 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 125000003003 spiro group Chemical group 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 238000000889 atomisation Methods 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 description 4
- 238000010030 laminating Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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Abstract
A spray gun amplitude adjusting device with high sealing performance comprises an amplitude seat, an adjusting hole arranged on the amplitude seat and an internal thread arranged on the inner wall of the adjusting hole, wherein an amplitude adjusting screw matched with the amplitude adjusting screw is arranged in the adjusting hole, an external thread screwed with the internal thread is arranged on the outer wall of a screw body of the amplitude adjusting screw, the head of the amplitude adjusting screw is positioned outside a port at the right end of the adjusting hole, an annular groove is formed in the outer wall at the left end of the amplitude adjusting screw, an O-shaped ring matched with the annular groove is arranged in the annular groove, the amplitude adjusting screw is connected with an amplitude needle, a rubber sleeve is sleeved outside the left end of the amplitude adjusting screw, and; the left end of the rubber sleeve protrudes to the left outside the orifice at the left end of the adjusting hole. The utility model discloses a spray gun range adjusting device with high leakproofness can still guarantee the leakproofness of self after the sealed inefficacy of twice that becomes including external screw thread and O type circle to guarantee range control effect and atomization quality.
Description
Technical Field
The utility model relates to a spray gun range adjusting device, especially a spray gun range adjusting device with high leakproofness.
Background
The range adjusting device is an important device used for adjusting the atomization range on the spray gun, the traditional range adjusting device is in threaded connection with an air passage in the spray gun, when the range is required to be adjusted, only the range adjusting screw exposed to the outside needs to be rotated, at the moment, the range adjusting screw can move along the track of the internal thread of the range seat of the range adjusting device, and along with the movement of the range adjusting screw, the range needle connected with the range adjusting screw moves along with the range adjusting screw, so that the range adjusting action is completed.
Therefore, the amplitude adjusting screw and the amplitude seat are sealed through the threads, but when the threads are sealed, a certain gap still exists between the internal threads and the external threads, the spray gun works by means of high-pressure air flow, so that the high-pressure air flow is easy to flow out to the outside through the gap between the internal threads and the external threads under the action of self high pressure, the air leakage condition is caused, in order to avoid the leakage of the high-pressure air flow through the gap between the internal threads and the external threads, an O-shaped ring is arranged at the end part of the amplitude adjusting screw and used for improving the sealing property between the amplitude adjusting screw and the amplitude seat, when the amplitude adjusting screw moves, the O-shaped ring moves along with the high-pressure air flow, the O-shaped ring is extruded in the moving process of the O-shaped ring, the long-term extrusion and the rubber material of the O-shaped ring easily cause the aging condition of, the sealing effect that leads to O type circle no longer exists, leads to the range adjusting device even adorn O type circle still have the risk of gas leakage, can't guarantee range adjusting device's leakproofness, when range adjusting device gas leakage, can seriously influence range adjusting effect and atomizing quality.
Disclosure of Invention
The utility model aims to solve the current technical problem and provide a spray gun range adjusting device with high leakproofness, self leakproofness is still guaranteed after the sealed inefficacy of twice that external screw thread and O type circle formed including it to guarantee range control effect and atomization quality.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
the utility model discloses a spray gun range adjusting device with high leakproofness, including the range seat, locate the regulation hole on the range seat and locate the internal thread on the regulation hole inner wall, be equipped with rather than assorted range adjusting screw in the regulation hole, range adjusting screw spiral shell body outer wall is equipped with the external screw thread with internal thread looks spiro union, range adjusting screw head is located outside the regulation hole right-hand member drill way, range adjusting screw left end outer wall is equipped with the ring channel, is equipped with rather than assorted O type circle in the ring channel, range adjusting screw connection has the range needle, its characterized in that: a rubber sleeve is sleeved outside the left end of the amplitude adjusting screw, and the outer wall of the rubber sleeve is attached to the inner wall of the adjusting hole; the left end of the rubber sleeve protrudes to the outside of the hole opening at the left end of the adjusting hole leftwards, and the right end surface of the rubber sleeve is attached to the left side wall of the O-shaped ring; the inner wall of the right part of the rubber sleeve is attached to the outer wall of the left end of the amplitude adjusting screw; the outer wall of the left end of the amplitude adjusting screw is provided with an embedded groove positioned on the left side of the annular groove, and the embedded groove is annular; an embedded ring matched with the embedded groove is arranged on the inner wall of the right part of the rubber sleeve; the amplitude needle is provided with an annular clamping groove; a snap ring matched with the snap ring is arranged in the snap groove, the outer edge of the snap ring protrudes outwards out of the snap groove, and the side wall of the right side of the snap ring is tightly pressed on the left end face of the rubber sleeve; an annular auxiliary cavity is arranged inside the right end of the rubber sleeve, and the width of the auxiliary cavity gradually decreases towards the direction of the inner wall of the adjusting hole; the side wall of the left side of the rubber sleeve is provided with a plurality of vent holes which are uniformly distributed in the circumferential direction; the side wall of the left side of the clamping ring is provided with a plurality of air inlets communicated with the positions of the air vents; and a vent pipe matched with the vent hole is arranged at the orifice at the right end of the air inlet hole.
The aperture of the air inlet is gradually decreased towards the direction of the rubber sleeve.
A first annular clamping groove is formed in the clamping ring; the right side wall of the clamping ring is provided with a first annular hole communicated with the first clamping groove; an annular second clamping groove is formed in the left part of the amplitude seat; the left end face of the amplitude seat is provided with a second annular hole communicated with the second clamping groove; a first clamping sheet matched with the first clamping groove is arranged in the first clamping groove, and a second clamping sheet matched with the second clamping groove is arranged in the second clamping groove; the first clamping sheet and the second clamping sheet are connected through a rubber membrane, the rubber membrane is tubular, and the rubber membrane encloses the rubber sleeve.
The breather pipe is made of hard material.
The utility model has the advantages that:
compared with the prior art, the spray gun amplitude adjusting device with high sealing performance adopting the structure of the utility model can be additionally provided with one sealing through the rubber sleeve on two seals formed by the inner thread and the outer thread and the O-shaped ring, even if other two seals fail, the sealing performance between the amplitude adjusting screw and the adjusting hole of the amplitude seat can still be ensured by the rubber sleeve, the sealing performance between the inner wall of the rubber sleeve and the outer wall of the left end of the amplitude adjusting screw can be further improved by the embedded ring, the high-pressure air flow can be utilized by the auxiliary cavity, the rubber sleeve can be further expanded while playing the sealing effect, thereby further improving the sealing performance between the amplitude adjusting screw and the adjusting hole of the amplitude seat, and avoiding the condition that the high-pressure air flow leaks out through the gap between the amplitude adjusting screw and the adjusting hole of the amplitude seat due to the sealing failure to the maximum extent, effectively ensuring the amplitude regulation effect and the atomization quality.
Drawings
FIG. 1 is a schematic structural diagram of a spray gun amplitude adjusting device with high sealing performance of the invention;
FIG. 2 is an enlarged view of section A of FIG. 1;
fig. 3 is an enlarged view of a portion B of fig. 2.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
referring to fig. 1 to 3, the utility model provides a spray gun amplitude adjusting device with high leakproofness, including amplitude seat 1, locate the regulation hole 2 on amplitude seat 1 and locate the internal thread 3 on the regulation hole 2 inner wall, be equipped with rather than assorted amplitude adjusting screw 4 in the regulation hole 2, the external wall of the body of amplitude adjusting screw 4 spiral shell is equipped with external screw thread 5 with internal thread 3 looks spiro union, the head of amplitude adjusting screw 4 is located outside the right-hand member drill way of regulation hole 2, the left end external wall of amplitude adjusting screw 4 is equipped with ring channel 6, be equipped with rather than assorted O type circle 7 in the ring channel 6, amplitude adjusting screw 4 is connected with amplitude needle 8, the left end overcoat of amplitude adjusting screw 4 is equipped with a rubber sleeve 9, the outer wall of rubber sleeve 9 is laminated with the regulation hole 2 inner wall; the left end of the rubber sleeve 9 protrudes to the outside of the hole opening at the left end of the adjusting hole 2, and the right end surface of the rubber sleeve 9 is attached to the left side wall of the O-shaped ring 7; the inner wall of the right part of the rubber sleeve 9 is attached to the outer wall of the left end of the amplitude adjusting screw 4; the outer wall of the left end of the amplitude adjusting screw 4 is provided with an embedded groove 10 positioned on the left side of the annular groove 6, and the embedded groove 10 is annular; an embedded ring 11 matched with the embedded groove 10 is arranged on the inner wall of the right part of the rubber sleeve 9; the amplitude needle 8 is provided with an annular clamping groove 12; a snap ring 13 matched with the snap ring is arranged in the snap groove 12, the outer edge of the snap ring 13 protrudes outwards out of the snap groove 12, and the side wall of the right side of the snap ring 13 is tightly pressed on the left end face of the rubber sleeve 9; an annular auxiliary cavity 14 is arranged inside the right end of the rubber sleeve 9, and the width of the auxiliary cavity 14 gradually decreases towards the inner wall of the adjusting hole 2; a plurality of vent holes 15 which are uniformly distributed in the circumferential direction are formed in the side wall of the left side of the rubber sleeve 9; the left side wall of the clamping ring 13 is provided with a plurality of air inlet holes 16 communicated with the positions of the vent holes 15; and a vent pipe 17 matched with the vent hole 15 is arranged at the opening at the right end of the air inlet hole 16.
The aperture of the air inlet hole 16 gradually decreases towards the direction of the rubber sleeve 9.
A first annular clamping groove 18 is formed in the clamping ring 13; a first annular hole 19 communicated with the first clamping groove 18 is formed in the side wall of the right side of the clamping ring 13; a second annular clamping groove 20 is formed in the left part of the amplitude seat 1; a second annular hole 21 communicated with the second clamping groove 20 is formed in the left end face of the amplitude seat 1; a first clamping sheet 22 matched with the first clamping groove 18 is arranged in the first clamping groove, and a second clamping sheet 23 matched with the second clamping groove is arranged in the second clamping groove 20; the first clamping sheet 22 and the second clamping sheet 23 are connected through a rubber film 24, the rubber film 24 is tubular, and the rubber sleeve 9 is enclosed by the rubber film 24.
The vent pipe 17 is made of a hard material.
The utility model discloses a use method as follows:
locate the internal thread 3 of 2 inner walls of regulation hole and locate 5 looks spiro couplings of external screw thread on 4 spiral shell body outer walls of range adjusting screw and can form one sealed, the existence of O type circle 7 can form another seal through the extrusion deformation of self with 2 inner walls of regulation hole laminating mutually, and spray gun range adjusting device possesses twice sealed this moment.
When the spray gun is used, the spray gun is connected with an air source with high-pressure air flow, when the high-pressure air flow enters an air path of a spray gun amplitude adjusting device, the clamping ring 13 is matched with the rubber sleeve 9 to seal the left end opening of the adjusting hole 2 in a surrounding manner, so that the high-pressure air flow entering the air path enters the air vent pipe 17 through the air inlet hole 16 at the first time, then enters the auxiliary cavity 14 through the air vent pipe 17, the air pressure in the auxiliary cavity 14 is continuously increased along with the continuous entering of subsequent high-pressure air flow into the auxiliary cavity 14, the high-pressure air flow extrudes the cavity wall of the auxiliary cavity 14 outwards by utilizing the air pressure, the rubber sleeve 9 expands along with the expansion of the air flow and is further filled between the outer wall of the amplitude adjusting screw 4 and the inner wall of the adjusting hole 2, the sealing performance between the outer wall and the inner wall of the adjusting hole 2 is further improved, the width of the auxiliary cavity 14 gradually decreases towards the inner wall of the adjusting hole, make high-pressure draught's pressure all assemble in the adjacent one point of adjusting hole 2 inner wall of supplementary chamber 14, under the concentrated condition of pressure, more do benefit to the inflation of rubber sleeve 9, and supplementary chamber 14 is the annular, can guarantee that rubber sleeve 9 after the inflation can be even be full of between 4 outer walls of range adjusting screw and adjusting hole 2 inner walls, guarantee the leakproofness between 4 of range adjusting screw and adjusting hole 2 in the at utmost.
In conclusion, the utility model can add one seal on the two seals formed by the internal and external threads and the O-shaped ring 7 through the rubber sleeve 9, even if other two seals fail, the existence of the rubber sleeve 9 can still ensure the sealing performance between the amplitude adjusting screw 4 and the adjusting hole 2 of the amplitude seat 1, the existence of the embedded ring 11 can further improve the sealing performance between the inner wall of the rubber sleeve 9 and the outer wall of the left end of the amplitude adjusting screw 4, and the existence of the auxiliary cavity 14 can utilize the high-pressure air flow, so that the rubber sleeve 9 can further expand while playing the sealing effect, thereby further improving the sealing performance between the amplitude adjusting screw 4 and the adjusting hole 2 of the amplitude seat 1, and avoiding the situation that the high-pressure air flow leaks out through the gap between the amplitude adjusting screw 4 and the adjusting hole 2 of the amplitude seat 1 due to the sealing failure to the maximum extent, effectively ensuring the amplitude regulation effect and the atomization quality.
The aperture of the air inlet hole 16 gradually decreases towards the direction of the rubber sleeve 9, and along with the continuous narrowing of the aperture of the air inlet hole 16, the high-pressure air flow flowing from the air inlet hole 16 to the vent pipe 17 can be further compressed, and the pressure of the high-pressure air flow is further increased, so that the extrusion degree of the high-pressure air flow on the wall of the auxiliary cavity 14 cavity is further improved, the expansion degree of the rubber sleeve 9 is further improved, and the sealing effect of the rubber sleeve 9 is further improved.
An annular first clamping groove 18 is arranged in the snap ring 13, a first annular hole 19 communicated with the first clamping groove 18 is arranged on the right side wall of the snap ring 13, an annular second clamping groove 20 is arranged in the left part of the amplitude seat 1, a second annular hole 21 communicated with the second clamping groove 20 is arranged on the left end face of the amplitude seat 1, a first clamping sheet 22 matched with the first clamping groove 18 is arranged in the first clamping groove 18, a second clamping sheet 23 matched with the second clamping groove 20 is arranged in the second clamping groove 20, the first clamping sheet 22 and the second clamping sheet 23 are connected through a rubber film 24, the rubber film 24 is tubular, the rubber film 24 encloses the rubber sleeve 9, the rubber film 24 is equivalent to a fourth seal, the seal formed by the rubber film 24 is positioned before the seal formed by the rubber sleeve 9, when high-pressure air tries to the rubber sleeve 9, the high-pressure air can be directly isolated by the rubber film 24 and can not flow into the adjusting hole 2 at all, and the rubber membrane 24 has elasticity, so when the amplitude needle 8 moves, the rubber membrane 24 can adapt to the movement of the amplitude needle 8 through deformation, and cannot influence the amplitude adjustment work.
The breather pipe 17 is hard material, and the existence of breather pipe 17 can make rubber sleeve 9 have certain intensity when elastic, avoids rubber sleeve 9 to cross soft unable condition that blocks high-pressure draught.
Claims (4)
1. The utility model provides a spray gun range adjusting device with high leakproofness, including the range seat, locate the regulation hole on the range seat and locate the internal thread on the regulation hole inner wall, be equipped with rather than assorted range adjusting screw in the regulation hole, range adjusting screw spiral shell outer wall is equipped with the external screw thread with internal thread looks spiro union, range adjusting screw head is located outside the regulation hole right-hand member drill way, range adjusting screw left end outer wall is equipped with the ring channel, be equipped with rather than assorted O type circle in the ring channel, range adjusting screw is connected with the range needle, its characterized in that: a rubber sleeve is sleeved outside the left end of the amplitude adjusting screw, and the outer wall of the rubber sleeve is attached to the inner wall of the adjusting hole; the left end of the rubber sleeve protrudes to the outside of the hole opening at the left end of the adjusting hole leftwards, and the right end surface of the rubber sleeve is attached to the left side wall of the O-shaped ring; the inner wall of the right part of the rubber sleeve is attached to the outer wall of the left end of the amplitude adjusting screw; the outer wall of the left end of the amplitude adjusting screw is provided with an embedded groove positioned on the left side of the annular groove, and the embedded groove is annular; an embedded ring matched with the embedded groove is arranged on the inner wall of the right part of the rubber sleeve; the amplitude needle is provided with an annular clamping groove; a snap ring matched with the snap ring is arranged in the snap groove, the outer edge of the snap ring protrudes outwards out of the snap groove, and the side wall of the right side of the snap ring is tightly pressed on the left end face of the rubber sleeve; an annular auxiliary cavity is arranged inside the right end of the rubber sleeve, and the width of the auxiliary cavity gradually decreases towards the direction of the inner wall of the adjusting hole; the side wall of the left side of the rubber sleeve is provided with a plurality of vent holes which are uniformly distributed in the circumferential direction; the side wall of the left side of the clamping ring is provided with a plurality of air inlets communicated with the positions of the air vents; and a vent pipe matched with the vent hole is arranged at the orifice at the right end of the air inlet hole.
2. A lance amplitude adjustment device with high sealing according to claim 1, characterized in that: the aperture of the air inlet is gradually decreased towards the direction of the rubber sleeve.
3. A lance amplitude adjustment device with high sealing according to claim 1, characterized in that: a first annular clamping groove is formed in the clamping ring; the right side wall of the clamping ring is provided with a first annular hole communicated with the first clamping groove; an annular second clamping groove is formed in the left part of the amplitude seat; the left end face of the amplitude seat is provided with a second annular hole communicated with the second clamping groove; a first clamping sheet matched with the first clamping groove is arranged in the first clamping groove, and a second clamping sheet matched with the second clamping groove is arranged in the second clamping groove; the first clamping sheet and the second clamping sheet are connected through a rubber membrane, the rubber membrane is tubular, and the rubber membrane encloses the rubber sleeve.
4. A lance amplitude adjustment device with high sealing according to claim 1, characterized in that: the breather pipe is made of hard material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020611933.5U CN212018270U (en) | 2020-04-22 | 2020-04-22 | Spray gun amplitude adjusting device with high leakproofness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020611933.5U CN212018270U (en) | 2020-04-22 | 2020-04-22 | Spray gun amplitude adjusting device with high leakproofness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212018270U true CN212018270U (en) | 2020-11-27 |
Family
ID=73494319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020611933.5U Expired - Fee Related CN212018270U (en) | 2020-04-22 | 2020-04-22 | Spray gun amplitude adjusting device with high leakproofness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212018270U (en) |
-
2020
- 2020-04-22 CN CN202020611933.5U patent/CN212018270U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201127 |