CN201353551Y - Backpack hand-operated sprayer air chamber plug rod sealing device - Google Patents
Backpack hand-operated sprayer air chamber plug rod sealing device Download PDFInfo
- Publication number
- CN201353551Y CN201353551Y CNU2009200099238U CN200920009923U CN201353551Y CN 201353551 Y CN201353551 Y CN 201353551Y CN U2009200099238 U CNU2009200099238 U CN U2009200099238U CN 200920009923 U CN200920009923 U CN 200920009923U CN 201353551 Y CN201353551 Y CN 201353551Y
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- China
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- air chamber
- stopper rod
- sealing device
- sealing ring
- plug rod
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Abstract
The utility model provides a backpack hand-operated sprayer air chamber plug rod sealing device, which relates to the technical field of sprayers. The sealing device is used for preventing liquid medicine from being taken out of an air chamber gland when an air chamber plug rod is pulled upwards, and the sealing device comprises an L-shaped sealing ring disposed inside the air chamber gland. Besides, at least one circular flange is arranged on the inner wall of a vertical portion of the L-shaped sealing ring, and the circular flange is attached to the air chamber plug rod. When the air chamber plug rod is pulled upwards, the liquid medicine adhering to the surface of the air chamber plug rod contacts with the circular flange of the L-shaped sealing ring and is retained backwards by the circular flange. The sealing device with the structure can prevent the liquid medicine adhering to the surface of the air chamber plug rod from being taken out of the air chamber gland along with the air chamber plug rod and can not cause leakage of the liquid medicine, thereby reducing waste of the liquid medicine, lowering manufacturing costs, decreasing pollution of the liquid medicine to environments, protecting agricultural production environments, preventing the liquid medicine from flowing onto operators and ensuring personal safety of the operators.
Description
Technical field
The utility model relates to the sprayer technical field, relates in particular to a kind of hand sprayer air chamber stopper rod sealing device of bearing.
Background technology
In agricultural production, in order to protect crops safety, health, the growth of the high place of production, the control of disease, worm, crop smothering is absolutely necessary, for prevent curing the disease, worm, crop smothering, need spray various agricultural chemicals to crops.No matter be biological pesticide, organic agricultural chemicals, safety pesticide or chemical pesticide, spray that these agricultural chemicals are requisite will to adopt pesticide dispersal equipment, pesticide dispersal equipment commonly used has engine-driven atomiser, knapsack hand sprayer etc., using maximum in the vast rural area of China is knapsack hand sprayer, and the social volume of holding reaches more than 4,000 ten thousand.
In the structure of knapsack hand sprayer, the air chamber gland is connected and fixed by fairlead and fairlead sealing ring and medicine-chest air chamber opening, air chamber stopper rod and the socket of air chamber gland, and the air chamber stopper rod passes the air chamber gland and does and pump.Knapsack hand sprayer in use, owing to have affinity between soup and the air chamber stopper rod, soup is easily attached on the air chamber stopper rod, on the air chamber stopper rod, be pulled through in the journey, to pass the air chamber gland with the air chamber stopper rod attached to the soup on the air chamber stopper rod arrives outside the medicine-chest, thereby cause the leakage of soup, the soup of leakage will flow to along the body of knapsack hand sprayer operating personnel on one's body or flow to around environment in.The leakage of soup can cause the waste of agricultural chemicals, has increased agriculture production cost; The soup that leaks out also can pollute environment; In addition, because general agricultural chemicals all has certain toxicity, the agricultural chemicals of leakage flows on one's body the operating personnel, may cause operating personnel's pesticide poisoning, with serious harm operating personnel's personal safety.
Reveal in order to prevent soup, this just need if still excessive sealing will cause the resistance of motion of air chamber stopper rod excessive to the air chamber stopper rod, influence the operate as normal of air chamber stopper rod to sealing between air chamber gland and the air chamber stopper rod, if sealing is not enough, will cause soup seriously to reveal.
The utility model content
The purpose of this utility model provides a kind of knapsack hand sprayer air chamber stopper rod sealing device, and to sealing between air chamber stopper rod and the air chamber gland, soup is taken out of outside the air chamber gland in the time of can effectively preventing to draw on the air chamber stopper rod.
For solving the problems of the technologies described above, the utility model provides a kind of knapsack hand sprayer air chamber stopper rod sealing device, when being used to prevent draw on the air chamber stopper rod soup is taken out of outside the air chamber gland, comprise the L shaped sealing ring that is arranged in the described air chamber gland, the inwall of the vertical portion of described L shaped sealing ring is provided with quantity and is no less than annular lip together, and this annular lip and described air chamber stopper rod are fitted.
Preferably, be provided with water proof ring between described L shaped sealing ring and the described air chamber gland, this water proof ring and the socket of described air chamber stopper rod.
Preferably, described water proof ring is the wool felt collar.
Preferably, the horizontal part of described L shaped sealing ring is provided with the through hole that vertically extends.
Preferably, the number of described annular lip is twice.
Preferably, the number of described annular lip is three roads.
Preferably, described L shaped sealing ring is L shaped rubber ring.
The knapsack hand sprayer air chamber stopper rod sealing device that the utility model provides, comprise L shaped sealing ring and water proof ring, the two all is arranged in the air chamber gland, the inwall of the vertical portion of L shaped sealing ring is provided with annular lip, this annular lip and air chamber stopper rod are fitted, and water proof ring is arranged between L shaped sealing ring and the air chamber gland.When handling knapsack hand sprayer, the air chamber stopper rod passes from the air chamber gland, do and pump, when drawing on the air chamber stopper rod, the annular lip of running into L shaped sealing ring attached to the soup on air chamber stopper rod surface, to be returned by its shelves, and the micro-soup that is not kept off back, by being absorbed by water proof ring behind the L shaped sealing ring.L shaped sealing ring cooperates formation two seals layer with water proof ring; the feasible soup attached to air chamber stopper rod surface of this structure will can not be brought to outside the air chamber gland with the air chamber stopper rod; can not cause the leakage of soup; thereby reduced the waste of soup; reduced production cost, alleviated the pollution of soup, protected agriculture production environment environment; avoid soup to flow on one's body the operating personnel, guaranteed operating personnel's personal safety.
Simultaneously, because the part that L shaped sealing ring and air chamber stopper rod are fitted is an annular lip, the contact area of annular lip and air chamber stopper rod is less, this structure makes that the frictional force between L shaped sealing ring and the air chamber stopper rod is very little, the air chamber stopper rod is in the process of motion, the resistance of motion is little, does not influence the operate as normal of air chamber stopper rod.
In the preferred version, the horizontal position of L shaped sealing ring is provided with the through hole that vertically extends, this through hole is communicated with medicine-chest, this structure makes that the systemic soup of water proof ring can be in through hole oozes back medicine-chest, avoid the waste of soup like this, increase the recycling of soup, reduced the agricultural production body originally.
Description of drawings
The structural representation of the knapsack hand sprayer air chamber stopper rod sealing device that Fig. 1 provides for the utility model;
Fig. 2 is the structural representation of L shaped sealing ring among Fig. 1;
The knapsack hand sprayer air chamber stopper rod sealing device that Fig. 3 provides for the utility model is installed in the structural representation on the knapsack hand sprayer;
Wherein, among Fig. 1-Fig. 3:
Air chamber stopper rod 1, air chamber gland 2, fairlead 3, fairlead sealing ring 4, L shaped sealing ring 5, through hole 51, annular lip 52, water proof ring 6.
The specific embodiment
Core of the present utility model provides a kind of knapsack hand sprayer air chamber stopper rod sealing device, and a kind of knapsack hand sprayer, can solve knapsack hand sprayer effectively when the air chamber stopper rod moves up and down, be taken out of the outer problem of air chamber gland attached to the soup on air chamber stopper rod surface.
Below in conjunction with accompanying drawing content of the present utility model is described, following description only is exemplary and indicative, should any restriction not arranged to protection domain of the present utility model.
Please referring to Fig. 1, Fig. 2, Fig. 3, the structural representation of the knapsack hand sprayer air chamber stopper rod sealing device that Fig. 1 provides for the utility model, Fig. 2 is the structural representation of L shaped sealing ring among Fig. 1, and the knapsack hand sprayer air chamber stopper rod sealing device that Fig. 3 provides for the utility model is installed in the structural representation on the knapsack hand sprayer.
As Fig. 1, shown in Figure 3, the knapsack hand sprayer air chamber stopper rod sealing device that the utility model provides comprises L shaped sealing ring 5 and water proof ring 6.Wherein, the structure of L shaped sealing ring 5 as shown in Figure 2, in a kind of concrete embodiment, L shaped sealing ring 5 can be for having the L shaped rubber ring of loop configuration, comprise horizontal part and vertical portion, horizontal part is a gulde edge, be used for L shaped sealing ring 5 is positioned in the upper edge of medicine-chest air chamber opening, have the through hole 51 that vertically extends on the horizontal part, through hole 51 is communicated with medicine-chest, the inwall of the vertical portion of L shaped sealing ring 5 is provided with quantity and is no less than annular lip 52 together, and preferably, the quantity of annular lip 52 is three roads; The wool felt collar of water proof ring 6 for having loop configuration.
L shaped sealing ring 5 and water proof ring 6 all are arranged in the air chamber gland 2, the horizontal part of L shaped sealing ring 5 is positioned in the upper edge of medicine-chest air chamber opening, annular lip 52 on the inwall of its vertical edges portion fits tightly with air chamber stopper rod 1, through hole 51 on the horizontal part of L shaped sealing ring 5 is communicated with medicine-chest, water proof ring 6 be arranged on L shaped sealing ring 5 horizontal sides above, between L shaped sealing ring 5 and air chamber gland.The air chamber gland 2 that is socketed with air chamber stopper rod 1 fastens with medicine-chest air chamber opening, and is connected and fixed with the air chamber outlet by fairlead 3 and fairlead sealing ring 4.
Below introduce the advantage of the knapsack hand sprayer air chamber stopper rod sealing device that the utility model provides.
The knapsack hand sprayer air chamber stopper rod sealing device that the utility model provides, comprise L shaped sealing ring 5 and water proof ring 6, the two all is arranged in the air chamber gland 2, the inwall of the vertical portion of L shaped sealing ring 5 is provided with annular lip 52, annular lip 52 fits tightly with air chamber stopper rod 1, the horizontal part of L shaped sealing ring 5 is provided with the through hole 51 that vertically extends, and through hole 51 is communicated with medicine-chest, and water proof ring 6 is arranged between L shaped sealing ring 5 and the air chamber gland 2.When handling knapsack hand sprayer, air chamber stopper rod 1 passes from air chamber gland 2, do and pump, air chamber stopper rod 1 is when last drawing, attached to the annular lip 51 that the soup on air chamber stopper rod 1 surface is run into L shaped sealing ring 5, kept off back by it, and the micro-soup that is not kept off back, by being absorbed by water proof ring 6 behind the L shaped sealing ring 5, the soup that is absorbed by water proof ring 6 will ooze back in the medicine-chest by through hole 51.
L shaped sealing ring 5 cooperates formation two seals layer with water proof ring 6; the feasible soup attached to air chamber stopper rod 1 surface of this structure will can not be brought to outside the air chamber gland 2 with air chamber stopper rod 1; can not cause the leakage of soup; thereby reduced the waste of soup; reduced production cost, alleviated the pollution of soup, protected agriculture production environment environment; avoid soup to flow on one's body the operating personnel, guaranteed operating personnel's personal safety.
Simultaneously, because L shaped sealing ring 5 is an annular lip 52 with the part that air chamber stopper rod 2 is fitted, annular lip 52 is less with the contact area of air chamber stopper rod 1, this structure makes that the frictional force between L shaped sealing ring 5 and the air chamber stopper rod 1 is very little, air chamber stopper rod 1 is in the process of motion, the resistance of motion is little, does not influence the operate as normal of air chamber stopper rod 1.
In the foregoing description, water proof ring is the wool felt collar, and the hand sprayer air chamber stopper rod sealing device that the utility model provides is not limited thereto, and the loop configuration that has absorbent function in every case all can be used as water proof ring.
In the foregoing description, the inwall of the vertical portion of L shaped sealing ring is provided with three road annular lip, and the quantity of annular lip is not limited thereto, and can the quantity of annular lip rationally be set according to the frictional force size between air chamber stopper rod and the L shaped sealing ring.
The above only is the description of preferred implementation of the present utility model; should be understood that; because the finiteness of literal expression; and objectively have unlimited concrete structure; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. knapsack hand sprayer air chamber stopper rod sealing device, when being used to prevent draw on the air chamber stopper rod soup is taken out of outside the air chamber gland, it is characterized in that, comprise the L shaped sealing ring that is arranged in the described air chamber gland, the inwall of the vertical portion of described L shaped sealing ring is provided with quantity and is no less than annular lip together, and this annular lip and described air chamber stopper rod are fitted.
2. knapsack hand sprayer air chamber stopper rod sealing device according to claim 1 is characterized in that, is provided with water proof ring between described L shaped sealing ring and the described air chamber gland, this water proof ring and the socket of described air chamber stopper rod.
3. knapsack hand sprayer air chamber stopper rod sealing device according to claim 2 is characterized in that described water proof ring is the wool felt collar.
4. according to each described knapsack hand sprayer air chamber stopper rod sealing device of claim 1-3, it is characterized in that the horizontal part of described L shaped sealing ring is provided with the through hole that vertically extends.
5. knapsack hand sprayer air chamber stopper rod sealing device according to claim 1 is characterized in that the number of described annular lip is twice.
6. knapsack hand sprayer air chamber stopper rod sealing device according to claim 1 is characterized in that the number of described annular lip is three roads.
7. knapsack hand sprayer air chamber stopper rod sealing device according to claim 1 is characterized in that described L shaped sealing ring is L shaped rubber ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200099238U CN201353551Y (en) | 2009-02-18 | 2009-02-18 | Backpack hand-operated sprayer air chamber plug rod sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200099238U CN201353551Y (en) | 2009-02-18 | 2009-02-18 | Backpack hand-operated sprayer air chamber plug rod sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201353551Y true CN201353551Y (en) | 2009-12-02 |
Family
ID=41409892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200099238U Expired - Fee Related CN201353551Y (en) | 2009-02-18 | 2009-02-18 | Backpack hand-operated sprayer air chamber plug rod sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201353551Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275252A (en) * | 2011-07-21 | 2011-12-14 | 江苏扬州合力橡胶制品有限公司 | Sealing device for sealing die on vulcanization forming machine |
| WO2021128687A1 (en) * | 2019-12-27 | 2021-07-01 | 南微医学科技股份有限公司 | Pressure pump sealing structure, pressure pump head, and pressure pump |
-
2009
- 2009-02-18 CN CNU2009200099238U patent/CN201353551Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275252A (en) * | 2011-07-21 | 2011-12-14 | 江苏扬州合力橡胶制品有限公司 | Sealing device for sealing die on vulcanization forming machine |
| WO2021128687A1 (en) * | 2019-12-27 | 2021-07-01 | 南微医学科技股份有限公司 | Pressure pump sealing structure, pressure pump head, and pressure pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091202 Termination date: 20100218 |