CN201050032Y - Spraying device of asphalt distribution truck - Google Patents
Spraying device of asphalt distribution truck Download PDFInfo
- Publication number
- CN201050032Y CN201050032Y CNU2007200529434U CN200720052943U CN201050032Y CN 201050032 Y CN201050032 Y CN 201050032Y CN U2007200529434 U CNU2007200529434 U CN U2007200529434U CN 200720052943 U CN200720052943 U CN 200720052943U CN 201050032 Y CN201050032 Y CN 201050032Y
- Authority
- CN
- China
- Prior art keywords
- piston rod
- hole
- nozzle
- sealing
- pitch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000010426 asphalt Substances 0.000 title abstract 6
- 238000005507 spraying Methods 0.000 title abstract 3
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 abstract description 3
- 238000010030 laminating Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Nozzles (AREA)
Abstract
A spraying device of an asphalt distribution truck comprises an asphalt pipe, a cylinder and a piston rod, wherein the asphalt pipe is radially provided with a through hole, a nozzle seat penetrates through the through hole to be fixed with the through hole, and the head part of the piston rod is a spherical surface and is sleeved in a sealing cone; the sealing cone is matched with the outlet of the nozzle seat to realize opening or closing. The upper part of the sealing cone is axially provided with a blind hole, and the head of the spherical surface of the piston rod is sleeved in the blind hole; the piston rod is movably connected with the sealing cone through a transverse pin. The utility model discloses a loose piston rod of connecting of horizontal round pin and sealed awl, when the piston rod continues overhanging, sealed awl just can produce a less swing trend in each direction, and it is sealed to continue the laminating to the sealed department of nozzle holder export not contacting, and it is overhanging until the piston rod can't continue. In addition, the head of the piston rod is a spherical surface, which can play a role in automatic center positioning, so that asphalt materials cannot leak out of the nozzle when the asphalt spraying vehicle stops working. The sealing device has the advantages of simple and reasonable structure, easiness in processing, low requirement on assembly precision and good sealing performance.
Description
Technical field
The utility model relates to the flusher of a kind of pitch sprinkling car, particularly pitch sprinkling car.
Background technology
In the pitch sprinkling car flusher, the outlet of pitch realizes the sprinkling and the sealing of pitch by the fitted seal of the conical surface, existing mode is to make protruding sealing cone at the tailpiece of the piston rod of nozzle cylinder, cooperates the open and close that realize the pitch outlet with recessed sealing cone on the nozzle carrier.The screw thread that this structure links to cylinder block and nozzle carrier and the axiality of the piston rod conical surface require very high, screw thread and its conical surface on the nozzle carrier also has very high axiality requirement simultaneously, particularly the conical surface axiality of screw thread on the cylinder block and piston rod is difficult to guarantee, causes the nozzle of each flusher on the pitch sprinkling car to have pitch in various degree to leak.
Disclosing a kind of pitch sprinkling pneumatic actuator among the China Patent No. ZL200520031591.5, is the device that is used for pitch sprinkling car control pitch sprinkling nozzle switch.Its major technique is to utilize air pressure to promote the actuator piston, relies on the motion of piston to drive spool, thus the switch of control nozzle.The valve core head of the core assembly of this structure is connected with piston rod by valve core, nut, in case Non-normal errors appears in axiality and/or planeness between core assembly and the nozzle, then can't accurately control the switch of nozzle, cause nozzle to have pitch in various degree to leak, cause the wasting of resources.
The utility model content
The purpose of this utility model aim to provide a kind of simple and reasonable, process and assemble easily, can effectively solve the flusher of pitch, to overcome the deficiencies in the prior art because of the pitch sprinkling car of the leakage problem making the fit-up gap and cause greatly.
Press the flusher of a kind of pitch sprinkling car of this purpose design, comprise pitch pipe, cylinder and piston rod, the pitch caliber is to being provided with through hole, and it is fixing with it that nozzle carrier runs through through hole, and its architectural feature is that piston rod head is spherical, and is inserted in the sealing awl; The sealing awl cooperates to realize opening and closing of fault with the nozzle carrier outlet.
Described sealing awl upper axial is provided with blind hole, and spherical head of piston rod is inserted in blind hole; Piston rod is connected by lateral pin is active with the sealing awl.
Described nozzle carrier is a hollow tube, and two ends are provided with internal thread and are spirally connected with cylinder and nozzle respectively up and down; The middle part is axially arranged with the elongated slot through hole and communicates with the pitch pipe.Elongated slot through hole below is provided with and seals the concave cone face that awl matches.
The utility model at the axiality that is difficult to guarantee the piston rod packing conical surface and nozzle carrier in the prior art, both can't fit fully the sealing phenomenon, adopt active connection piston rod of lateral pin and sealing awl, when piston rod continues when overhanging, the sealing awl just can produce a less swing trend in all directions, export not contact seal place to nozzle carrier and continue the sealing of fitting, can't continue overhanging until piston rod.Piston rod head is spherical and can plays the automatic center positioning action in addition, thus pitch sprinkling car when stopping operation the pitch material just can from nozzle, not leak out.It is simple and reasonable, handling ease, assembly precision are less demanding, favorable sealing property, cost cost are low.
Description of drawings
Fig. 1 is the utility model one embodiment sectional structure schematic diagram.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1, the flusher of this pitch sprinkling car comprises cylinder 1, piston rod 4, pitch pipe 3, nozzle carrier 5, sealing awl 7 and nozzle 9.Pitch pipe 3 is provided with the radial direction through hole that matches with nozzle carrier 5, and it is fixing behind the through hole of pitch pipe 3 that nozzle carrier 5 runs through.Nozzle carrier 5 is a hollow tube, and two ends are provided with internal thread and are spirally connected with cylinder and nozzle respectively up and down, and nozzle carrier 5 upper surfaces are provided with boss 5.1 and top nut 2, and the middle part axially has elongated slot through hole 5.2 makes nozzle carrier 5 communicate with pitch pipe 3.Elongated slot through hole below is provided with and seals the awl 7 concave cone faces 5.3 that match; The top of nozzle 9 also is provided with lower nut 8.Piston rod 4 terminations are spherical 4.2, and sealing awl 7 central upper portion are provided with blind hole 7.1, and spherical 4.2 head of piston rod 4 is inserted in blind hole; Piston rod 4 bores 7 by 6 active connections of lateral pin with sealing, maintains the gap of 0.3-0.8mm between lateral pin 6 and the pin-and-hole 4.1.
Its operating principle is: when piston rod 4 shrinks, seal awl 7 and leave nozzle 9, pitch sprays from nozzle 9 by the gap that seals 5.3 in awl 7 and nozzle carrier 5 concave cone faces under the external pressure effect, realizes pitch sprinkling.When piston rod 4 continues to extend sealing and bore 7 convex surface when touching the concave cone face 5.3 of nozzle carrier 5 outward, because it is gapped between lateral pin 6 and pin-and-hole, sealing awl 7 just can produce a less swing trend in all directions, therefore piston rod 4 impels sealing awl 7 to press to and nozzle 9 not contact seals place, the sealing thereby realization sealing awl 7 convex cone faces and nozzle carrier 5 concave cone faces 5.3 are fitted fully, piston rod 4 can't continue overhanging.The head of piston rod 4 is spherical 4.2 in addition, can play the automatic center positioning action, keeps the sealing of fitting fully of sealing awl 7 convex cone faces and nozzle carrier 5 concave cone faces 5.3, thus pitch sprinkling car when stopping operation the pitch material just can from nozzle, not leak out.Being threaded of 9 at further fastening nozzle carrier 5 and cylinder 1 and nozzle played in the use of top nut 2 and lower nut 8, prevents to use in the long-time use screw thread to unscrew and comes off.
Claims (5)
1. the flusher of a pitch sprinkling car, comprise pitch pipe (3), cylinder (1) and piston rod (4), the pitch caliber is to being provided with through hole, and it is fixing with it that nozzle carrier (5) runs through through hole, it is characterized in that piston rod head is spherical (4.2), and be inserted in the sealing awl (7); The sealing awl cooperates to realize opening and closing of fault with the nozzle carrier outlet.
2. according to the flusher of the described pitch sprinkling car of claim 1, it is characterized in that sealing awl upper axial is provided with blind hole (7.1), spherical head of piston rod is inserted in blind hole; Piston rod is bored by active connection of lateral pin (6) with sealing.
3. according to the flusher of the described pitch sprinkling car of claim 2, the gap that it is characterized in that lateral pin and pin-and-hole (4.1) is 0.3-0.8mm.
4. according to the flusher of claim 1 or 2 described pitch sprinkling cars, it is characterized in that described nozzle carrier is a hollow tube, two ends are provided with internal thread and are spirally connected with cylinder and nozzle respectively up and down; The middle part is axially arranged with elongated slot through hole (5.2) and communicates with the pitch pipe.
5. according to the flusher of the described pitch sprinkling car of claim 4, it is characterized in that described elongated slot through hole below is provided with and seals the concave cone face (5.3) that awl matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200529434U CN201050032Y (en) | 2007-06-14 | 2007-06-14 | Spraying device of asphalt distribution truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200529434U CN201050032Y (en) | 2007-06-14 | 2007-06-14 | Spraying device of asphalt distribution truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201050032Y true CN201050032Y (en) | 2008-04-23 |
Family
ID=39336514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200529434U Expired - Fee Related CN201050032Y (en) | 2007-06-14 | 2007-06-14 | Spraying device of asphalt distribution truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201050032Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166353A (en) * | 2017-12-20 | 2018-06-15 | 中联重科股份有限公司 | Oil spraying device and spill oil system |
| CN108396626A (en) * | 2018-02-01 | 2018-08-14 | 李理 | A kind of repairing vehicle for asphalt road |
-
2007
- 2007-06-14 CN CNU2007200529434U patent/CN201050032Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166353A (en) * | 2017-12-20 | 2018-06-15 | 中联重科股份有限公司 | Oil spraying device and spill oil system |
| CN108396626A (en) * | 2018-02-01 | 2018-08-14 | 李理 | A kind of repairing vehicle for asphalt road |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER NAME: MEIDI GROUP CO. LTD. |
|
| CP03 | Change of name, title or address |
Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: MIDEA GROUP Co.,Ltd. Address before: 528300 Penglai Road, Beijiao Town, Shunde District, Guangdong, Foshan Patentee before: Midea Group |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080423 Termination date: 20140614 |
|
| EXPY | Termination of patent right or utility model |