CN201859080U - Gas sampling device adopting lever structure - Google Patents
Gas sampling device adopting lever structure Download PDFInfo
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- CN201859080U CN201859080U CN 201020591092 CN201020591092U CN201859080U CN 201859080 U CN201859080 U CN 201859080U CN 201020591092 CN201020591092 CN 201020591092 CN 201020591092 U CN201020591092 U CN 201020591092U CN 201859080 U CN201859080 U CN 201859080U
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- piston
- cylinder
- gas sampling
- piston rod
- lever
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Abstract
The utility model relates to the technical field of gas samplers, and discloses a gas sampling device adopting a lever structure, which comprises a cylinder, a barrel body, a piston, a piston rod and a driving arm. The cylinder consists of a front cylinder wall, lateral cylinder walls and a rear cylinder wall; the front cylinder wall is provided with an air nozzle penetrating the front cylinder wall to be communicated with the inside the cylinder; a screw socket penetrating through the rear wall is arranged in the center of the rear cylinder wall; the barrel body is connected with the screw socket in a matching manner through thread arranged at the front end of the barrel body; a lever support is arranged at the rear end of the barrel body; a lever fulcrum shaft is arranged on the lever support; the piston closely matches with the inner sides of the lateral cylinder walls; the piston rod penetrating through the barrel body and the rear cylinder wall is connected with the piston; the piston rod is provided with a tail end; the driving arm is connected with the lever fulcrum shaft by the aid of a lever fulcrum hole arranged at one end; and the driving arm is movably connected with the tail end of the piston rod. The device enables a power arm to be larger than a resisting arm by the aid of a lever method, so that the purpose of saving labor for sampling gas is achieved.
Description
Technical field
The utility model relates to the gas sampler field, relates in particular to a kind of gas sampling assembly that adopts lever construction.
Background technology
For the content of certain gas in the fast detecting air, need the using gases detector tube.The gas detector tube can detect the concentration that contains certain gas in the air, the corresponding a kind of detected gas of each detector tube, and the air of the certain total amount of needs just can reach the purpose of detection during the detector tube detected gas by detector tube.
For the air that makes certain total amount passes through detector tube, need using gases detector tube sampling thief, existing method is to use manual sampling thief, its method is that the air intake opening of detector tube is inserted the air that needs detection, its gas outlet is inserted the air intake opening of manual sampling thief, spur the handle on the sampling thief pull bar then, make the inner negative pressure space that forms a required sampling total amount of sampling thief, a pressure reduction is just arranged inside and outside the sampling thief like this, under the effect of atmospheric pressure, certain total amount air just can pass through detector tube, thereby has reached above purpose.The shortcoming of this method is: 1, the method for sampling is not laborsaving; 2, piston displacement is long, makes its abrading machine meeting many, thereby reduces serviceable life.
The utility model content
(1) technical matters that will solve
The technical problems to be solved in the utility model is to use sampling apparatus that gas is sampled how time saving and energy savingly, and reduces the displacement of piston, thereby reduces wear, and then prolongs the serviceable life of sampling apparatus.
(2) technical scheme
For achieving the above object, the utility model proposes a kind of gas sampling assembly that adopts lever construction, comprising:
Cylinder, described cylinder is made up of cylinder front wall, cylinder sidewall and cylinder rear wall, described cylinder front wall is provided with valve, thereby described valve penetrates the internal communication of described cylinder front wall and described cylinder, and the center of described cylinder rear wall is provided with the screw socket that penetrates rear wall;
Stack shell, described stack shell is connected by the screw thread and the described screw socket of front end setting, and the rear end of described stack shell is provided with lever dolly, and described lever dolly is provided with lever fulcrum shaft;
Piston, the tight fit inside of described piston and described cylinder sidewall;
Piston rod, described piston rod pass stack shell and are connected with piston with the cylinder rear wall, and described piston rod has tail end;
Actuating arm, described actuating arm is connected by balance pivot hole and the described lever fulcrum shaft that is provided with at one end, and the tail end of described actuating arm and described piston rod is movably connected.
Wherein, also comprise jackscrew and slide block, also be provided with via hole near described bar thick stick fulcrum hole place on described actuating arm, the tail end of described piston rod passes described actuating arm, and by described jackscrew described slide block is fixed on the tail end of described piston rod.
Wherein, described piston comprises piston main body and is arranged at piston main body near the piston header board of described cylinder front wall side with near plate behind the piston of described cylinder rear wall side, described piston header board is provided with equally distributed a plurality of bolt, described bolt passes the via hole on the plate behind described piston main body and the piston, and is fixedly tightened by nut separately on plate behind the described piston.
Wherein, plate is that ferrous material is made behind the described piston, and is provided with ringshaped magnet in the described screw socket.
Wherein, the top of described piston rod passes that plate and piston header board link into an integrated entity behind described piston main body and the piston.
Wherein, the inboard of described cylinder rear wall is provided with a plurality of equally distributed grooves, and each described groove is corresponding to a described nut.
Wherein, described piston main body is that elastomeric material is made.
Wherein, described cylinder rear wall and described cylinder sidewall pass through screw retention.
Wherein, the arranged outside of described stack shell has the ripple glaze structure.
Wherein, the arranged outside of described cylinder sidewall is porose.
(3) beneficial effect
Technique scheme of the present utility model has following advantage: utilized the lever method, made power arm greater than resistance arm, thereby reached labour-saving purpose when gas sampled; By making cylinder radius bigger, cylinder length is shortened greatly, piston mobile distance in cylinder has just shortened greatly like this, thereby has significantly reduced the chance of its wearing and tearing, thereby has prolonged its serviceable life; By being provided with ringshaped magnet, utilizing magnetic force to ensure that piston does not move forward under the effect of atmospheric pressure, thereby ensure accuracy by the air total amount of detector tube at the cylinder rear wall.
Description of drawings
Fig. 1 is the structural representation of the gas sampling assembly embodiment of employing lever construction of the present utility model.
Wherein, 1: actuating arm; 2: via hole; 3: slide block; 4: jackscrew; 5: the balance pivot hole; 6: lever fulcrum shaft; 7: lever dolly; 8: the ripple glaze structure; 9: stack shell; 10: the piston rod tail end; 11: piston rod; 12: screw socket; 13: screw thread; 14: the cylinder rear wall; 15: screw; 16: the detector tube hole that fractures; 17: groove; 18: nut; 19: bolt; 20: cylinder sidewall; 21: piston main body; 22: the piston header board; 23: valve; 24: ringshaped magnet; 25: cylinder front wall; 26: cylinder; 27: piston; 28: plate behind the piston.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model.
Be illustrated in figure 1 as the structural representation of the gas sampling assembly of employing lever construction of the present utility model, comprise:
Piston 27, the tight fit inside of piston 27 and cylinder sidewall 20, piston 27 comprises piston main body 21, be arranged at piston main body 21 near the piston header board 22 of cylinder front wall 25 sides with near plate 28 behind the piston of cylinder rear wall 14 sides, piston header board 22 is provided with equally distributed a plurality of bolt 19, bolt 19 passes the via hole on the plate 28 behind the via hole of piston main body 21 and the piston, and on plate behind the piston 28, fixedly tighten by nut 18 separately, each nut 18 is corresponding one by one with groove 17 on cylinder rear wall 14 inboards, plate 28 is made for ferrous material behind the piston, and piston main body 21 is made for elastomeric material;
Piston rod 11, the top of piston rod 11 pass that plate 28 and piston main body 21 link into an integrated entity with piston header board 22 behind the screw socket 12, piston of stack shell 9, cylinder rear wall 14, and piston rod has tail end 10;
Actuating arm 1, one end of actuating arm 1 is provided with balance pivot hole 5, thereby is connected with lever fulcrum shaft 6, also is provided with via hole 2 near bar thick stick fulcrum hole 5 places on actuating arm 1, thereby make piston rod tail end 10 pass actuating arm 1, and slide block 3 is fixed on the piston rod tail end 10 by jackscrew 4.
The concrete using method of the utility model embodiment is: at first actuating arm 1 is promoted forward, at this moment, actuating arm 1 drives piston rod 11, and piston rod 11 drives piston 27 again and moves forward, and when piston header board 22 was attached to cylinder front wall 25, actuating arm 1 just pushed away motionless.Then, an end of wireway is inserted valve 23, the other end of wireway has been inserted detector tube good in advance and has been placed on place to be detected.Then actuating arm 1 is moved backward, at this moment, actuating arm 1 drives piston rod 11, piston rod 11 drives piston 27 again and moves backward, form negative pressure space in the cylinder 26 of piston 27 front portions, air passes through detector tube under the effect of atmospheric pressure, when plate behind the piston 28 is attached to cylinder rear wall 14, actuating arm 1 can not move again, under the effect of ringshaped magnet 24 suction, atmospheric pressure can not move forward piston 27, and this moment, the negative pressure space capacity of cylinder 26 formation was exactly the capacity of the required air total amount of passing through of detector tube.In use, can a hand control actuating arm 1, another holds the ripple glaze structure 8 on the stack shell 9.
The utility model has the advantages that: utilized the lever method, made power arm, thereby reached labour-saving purpose when gas sampled greater than resistance arm; Radius by making cylinder is bigger, and cylinder length is shortened greatly, and the distance that moves in cylinder of piston has just shortened greatly like this, thereby has significantly reduced the chance of its wearing and tearing, thereby has prolonged its serviceable life; By being provided with ringshaped magnet, utilizing magnetic force to ensure that piston does not move forward under the effect of atmospheric pressure, thereby ensure accuracy by the air total amount of detector tube at the cylinder rear wall.
It below only is embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (10)
1. a gas sampling assembly that adopts lever construction is characterized in that, comprising:
Cylinder (26), described cylinder (26) is made up of cylinder front wall (25), cylinder sidewall (20) and cylinder rear wall (14), described cylinder front wall (25) is provided with valve (23), described valve (23) penetrate described cylinder front wall (25) thus with the internal communication of described cylinder (26), the center of described cylinder rear wall (14) is provided with the screw socket (12) that penetrates rear wall (14);
Stack shell (9), described stack shell (9) is connected by screw thread and the described screw socket (12) that front end is provided with, and the rear end of described stack shell (9) is provided with lever dolly (7), and described lever dolly (7) is provided with lever fulcrum shaft (6);
Piston (27), the tight fit inside of described piston (27) and described cylinder sidewall (20);
Piston rod (11), described piston rod (11) pass stack shell (9) and are connected with piston (27) with cylinder rear wall (14), and described piston rod (11) has tail end (10);
Actuating arm (1), described actuating arm (1) is connected with described lever fulcrum shaft (6) by the balance pivot hole (5) that is provided with at one end, and the tail end (10) of described actuating arm (1) and described piston rod (11) is movably connected.
2. the gas sampling assembly of employing lever construction as claimed in claim 1, also comprise jackscrew (4) and slide block (3), go up close described bar thick stick fulcrum hole (5) at described actuating arm (1) and locate also to be provided with via hole (2), the tail end (10) of described piston rod (11) passes described actuating arm (1), and by described jackscrew (4) described slide block (3) is fixed on the tail end (10) of described piston rod (11).
3. the gas sampling assembly of employing lever construction as claimed in claim 2, it is characterized in that, described piston (27) comprises piston main body (21) and is arranged at piston main body (21) near the piston header board (22) of described cylinder front wall (25) side with near plate (28) behind the piston of described cylinder rear wall (14) side, described piston header board (22) is provided with equally distributed a plurality of bolt (19), described bolt (19) passes the via hole on the plate (28) behind described piston main body (21) and the piston, and plate (28) is gone up and fixedly tightened by nut (18) separately behind described piston.
4. the gas sampling assembly of employing lever construction as claimed in claim 3 is characterized in that, plate behind the described piston (28) is made for ferrous material, and is provided with ringshaped magnet (24) in the described screw socket (12).
5. the gas sampling assembly of employing lever construction as claimed in claim 4 is characterized in that, plate (28) linked into an integrated entity with piston header board (22) after described piston main body (21) and piston were passed in the top of described piston rod (11).
6. the gas sampling assembly of employing lever construction as claimed in claim 5 is characterized in that, the inboard of described cylinder rear wall (14) is provided with a plurality of equally distributed grooves (17), and each described groove (17) is corresponding to a described nut (18).
7. the gas sampling assembly of employing lever construction as claimed in claim 6 is characterized in that, described piston main body (21) is made for elastomeric material.
8. the gas sampling assembly of employing lever construction as claimed in claim 7 is characterized in that, described cylinder rear wall (14) and described cylinder sidewall (20) are fixing by screw (15).
9. the gas sampling assembly of employing lever construction as claimed in claim 8 is characterized in that, the arranged outside of described stack shell (9) has ripple glaze structure (8).
10. as the gas sampling assembly of each described employing lever construction of claim 1-9, it is characterized in that the arranged outside of described cylinder sidewall (20) porose (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020591092 CN201859080U (en) | 2010-11-02 | 2010-11-02 | Gas sampling device adopting lever structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020591092 CN201859080U (en) | 2010-11-02 | 2010-11-02 | Gas sampling device adopting lever structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201859080U true CN201859080U (en) | 2011-06-08 |
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ID=44104884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020591092 Expired - Fee Related CN201859080U (en) | 2010-11-02 | 2010-11-02 | Gas sampling device adopting lever structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201859080U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101995347A (en) * | 2010-11-02 | 2011-03-30 | 北京市劳动保护科学研究所 | Gas sampling device by adopting lever structure |
-
2010
- 2010-11-02 CN CN 201020591092 patent/CN201859080U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101995347A (en) * | 2010-11-02 | 2011-03-30 | 北京市劳动保护科学研究所 | Gas sampling device by adopting lever structure |
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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: 20110608 Termination date: 20131102 |