CN202451502U - Pneumatic expansion piece of flow standard device - Google Patents
Pneumatic expansion piece of flow standard device Download PDFInfo
- Publication number
- CN202451502U CN202451502U CN2012200733297U CN201220073329U CN202451502U CN 202451502 U CN202451502 U CN 202451502U CN 2012200733297 U CN2012200733297 U CN 2012200733297U CN 201220073329 U CN201220073329 U CN 201220073329U CN 202451502 U CN202451502 U CN 202451502U
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- piston rod
- cylinder barrel
- cylinder
- cover
- barrel
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Abstract
The utility model discloses a pneumatic expansion piece of a flow standard device, which includes a cylinder barrel (1), a piston rod (2), a pair of air cylinder devices (3 and 3''), an air cylinder pneumatic control device (4) and supporting legs (5), wherein the piston rod (2) is placed in the cylinder barrel (1) in a penetrating manner; the piston rod (2) is in sliding fit with an inner ring surface of a front end cover (11) of the cylinder barrel (1) through a sliding sleeve (14) and seal rings (15 and 15'') in a sealing manner; the cylinder body (31) of the air cylinder device (3) is fixedly connected with the cylinder barrel (1) through connecting plates (33 and 33''); and a plunger rod (32) of the air cylinder device (3) is fastened and connected with a connecting plate (21) on the piston rod (2), so as to drive the piston rod (2) to move left and right. The pneumatic expansion piece of the flow standard device has the advantages of simple structure, convenience for processing and manufacturing, low manufacturing cost, excellent operational reliability as well as simplicity and convenience in maintenance.
Description
Technical field
The utility model relates to the clamping location of using on the flow standard device and the pneumatic expansion bend of pipeline length compensation.
Background technique
The flow standard device is the device that is used to detect the flow instrument accuracy; Pneumatic expansion bend wherein is used to connect table to be detected; Accomplish tong-test ammeter and move with the pipeline length compensation, can it fast and accurate clamping table to be detected, directly influences accuracy in detection and efficient.
The existing pneumatic expansion bend that adopts on the current flux standard set-up is as shown in Figure 1.Its piston rod places in the cylinder sleeve, the front and rear cover sealed sliding of piston rod and cylinder sleeve movingly, the piston that has been sealedly and fixedly connected on the piston rod outer ring surface, sealed sliding drives the piston rod move left and right through piston movingly between piston and cylinder sleeve.Its sealed sliding relation of being dynamically connected is complicated, and processing and quality of fit require high, and processing technology is complicated, and cost of production is high.Because its sealed sliding relation of being dynamically connected is complicated, quality of fit requires high, so in use break down easily, maintenance is inconvenient, directly influences normally carrying out of calibration operation.
The model utility content
The purpose of the utility model is to improve to the shortcoming deficiency of above-mentioned existing technology, provides a kind of simple in structure, easily manufactured, and cost of production is low, and operational safety is good, and is easy to maintenanceThe pneumatic expansion bend of flow standard device.
The utility model comprises cylinder barrel 1, piston rod 2, cylinder assembly 3, cylinder air control unit 4, supporting leg 5; Be connected with front cover 11 and rear end cover 12 respectively in the front end and back end of cylinder barrel 1; Be connected with pipe abutted flange 13 in the rear end of cylinder barrel 1; On front cover 11 inner ring surfaces of cylinder barrel 1, offer sliding sleeve 14 and seal ring 15,15 ', be connected with pipe abutted flange 23, on piston rod 2, be fixedly connected and be provided with connecting plate 21 at the front end of piston rod 2; Piston rod 2 is set in the cylinder barrel 1; Front cover 11 inner ring surfaces of piston rod 2 and cylinder barrel 1 cooperate through sliding sleeve 14 and seal ring 15,15 ' slipper seal, and the front end and back end of the cylinder body 31 of cylinder assembly 3 is passed through connecting plate 33,33 ' respectively and is fixedly connected with rear end cover 12 with the front cover 11 of cylinder barrel 1, and the plunger rod 32 of cylinder assembly 3 is fixedly connected with connecting plate 21 on the piston rod 2; Plunger rod 32 drives piston rod 2 move left and right, and front and back supporting leg 5 is fixedly connected with the front and rear cover 11,12 of cylinder barrel 1 respectively.
Be arranged with another cylinder assembly 3 ' for further improving stable the utility model at the opposite side of cylinder barrel 1.
The standard cylinder assembly that the utility model cylinder assembly 3 can adopt the special manufacturer to produce is supporting, and product structure is simple, and the slipper seal cooperating structure is few, convenient processing and manufacture, and cost of production is low, and the slip functional reliability is good, convenience easy to maintenance.The plug-in structural type of employing standard cylinder has reduced the requirement and the control of stricter precision in the processing of traditional, pneumatic expansion bend piston rod, saves the assembly technology link between piston rod and cylinder barrel.Precision control to cylinder barrel processing also reduces greatly.
Description of drawings
Fig. 1 is the existing technology structural representation.
Fig. 2-the 6th, the utility model example structure schematic representation, wherein Fig. 2 is a plan view, and Fig. 3 is the plan view of Fig. 2, and Fig. 4 is the A-A sectional view of Fig. 2, and Fig. 5 is piston rod 2 structural representations, Fig. 6 is cylinder barrel 1 structural representation.
Embodiment
The utility model is made up of cylinder barrel 1, piston rod 2, cylinder assembly 3, cylinder air control unit 4, supporting leg 5; Be connected with front cover 11 and rear end cover 12 respectively in the front end and back end of cylinder barrel 1; Be connected with pipe abutted flange 13 in the rear end of cylinder barrel 1; On front cover 11 inner ring surfaces of cylinder barrel 1, offer sliding sleeve 14 and seal ring 15,15 ', be connected with pipe abutted flange 23, on piston rod 2, be fixedly connected and be provided with connecting plate 21 at the front end of piston rod 2; Piston rod 2 is set in the cylinder barrel 1; Front cover 11 inner ring surfaces of piston rod 2 and cylinder barrel 1 cooperate through sliding sleeve 14 and seal ring 15,15 ' slipper seal, and the front end and back end of the cylinder body 31 of cylinder assembly 3 is fixedly connected with rear end cover 12 with the front cover 11 of cylinder barrel 1 through connecting plate 33,33 ' respectively, and the plunger rod 32 of cylinder assembly 3 and the connecting plate 21 on the piston rod 2 are fastenedly connected; Plunger rod 32 drives piston rod 2 move left and right, and front and back supporting leg 5 is fixedly connected with the front and rear cover 11,12 of cylinder barrel 1 respectively; Be arranged with another cylinder assembly 3 ' for improving stability at the opposite side of cylinder barrel 1.
Claims (1)
1. the pneumatic expansion bend of flow standard device; It is characterized in that; Comprise cylinder barrel (1), piston rod (2), cylinder assembly (3), cylinder air control unit (4), supporting leg (5); Be connected with front cover (11) and rear end cover (12) in the front end and back end of cylinder barrel (1) respectively, be connected with pipe abutted flange (13) in the rear end of cylinder barrel (1), on front cover (11) inner ring surface of cylinder barrel (1), offer sliding sleeve (14) and seal ring (15,15 '); Front end at piston rod (2) is connected with pipe abutted flange (23); Go up fixed connection at piston rod (2) and be provided with connecting plate (21), piston rod (2) is set in the cylinder barrel (1), and piston rod (2) cooperates through sliding sleeve (14) and seal ring (15,15 ') slipper seal with front cover (11) inner ring surface of cylinder barrel (1); The front end and back end of the cylinder body (31) of cylinder assembly (3) is fixedly connected with rear end cover (12) with the front cover (11) of cylinder barrel (1) through connecting plate (33,33 ') respectively; Connecting plate (21) on the plunger rod (32) of cylinder assembly (3) and the piston rod (2) is fastenedly connected, and plunger rod (32) drives piston rod (2) move left and right, and front and back supporting leg (5) is fixedly connected with the front and rear cover (11,12) of cylinder barrel (1) respectively; Opposite side at cylinder barrel (1) is arranged with another cylinder assembly (3 ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200733297U CN202451502U (en) | 2012-03-01 | 2012-03-01 | Pneumatic expansion piece of flow standard device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200733297U CN202451502U (en) | 2012-03-01 | 2012-03-01 | Pneumatic expansion piece of flow standard device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451502U true CN202451502U (en) | 2012-09-26 |
Family
ID=46867368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200733297U Expired - Fee Related CN202451502U (en) | 2012-03-01 | 2012-03-01 | Pneumatic expansion piece of flow standard device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451502U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424264A (en) * | 2015-12-28 | 2016-03-23 | 北航温州研究院 | Valve flow and flow resistance coefficient detection device |
-
2012
- 2012-03-01 CN CN2012200733297U patent/CN202451502U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424264A (en) * | 2015-12-28 | 2016-03-23 | 北航温州研究院 | Valve flow and flow resistance coefficient detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20120926 Termination date: 20160301 |