CN101819893A - Travel switch structure of pneumatic actuating mechanism - Google Patents
Travel switch structure of pneumatic actuating mechanism Download PDFInfo
- Publication number
- CN101819893A CN101819893A CN 201010165827 CN201010165827A CN101819893A CN 101819893 A CN101819893 A CN 101819893A CN 201010165827 CN201010165827 CN 201010165827 CN 201010165827 A CN201010165827 A CN 201010165827A CN 101819893 A CN101819893 A CN 101819893A
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- China
- Prior art keywords
- cylinder block
- travel switch
- guide rod
- travel
- travel switches
- 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.)
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Abstract
The invention provides a travel switch structure of a pneumatic actuating mechanism, comprising a cylinder block, a guide rod and two travel switches, wherein the guide rod is fixedly connected with a piston rod of the cylinder block via a synchronizing bar; the guide rod is fixedly installed with check blocks; and the piston rod of the cylinder block drives the check blocks to respectively strike the travel switches when in extension or retraction. The travel switch structure is characterized in that the two travel switches are arranged at one end of the cylinder block; the number of the check blocks is two; and the two check blocks are installed at the two ends of the guide rod and are respectively arranged at the outer sides of the two travel switches. The two travel switches are arranged at one end close to the cylinder block, thus facilitating cable connection and being capable of realizing IP65 protection grade only by installing a water proof outer cover.
Description
Technical field
The present invention relates to the automatic control technology field, be specially a kind of travel switch structure of pneumatic actuator.
Background technology
In the automatic control component of large-scale baffle door in thermal power plant and insertion plate door, the pneumatic actuator travel switch, realize the automatic control of large-scale baffle door and insertion plate door, existing pneumatic actuator travel switch structure as shown in Figure 1, the piston rod 5 of cylinder block drives guide rod 2 motions by synchronizing bar 6, a block 4 is arranged on this guide rod 2, two travel switch 3-1,3-2 is installed in the two ends near pneumatic element (cylinder) 1 respectively, block 4 stretches out at piston rod 5, clash into the travel switch 3-2 at pneumatic element (cylinder) 1 two ends during withdrawal respectively, 3-1 sends respectively and closes the door, enabling signal.Because two travel switch 3-1,3-2 are installed in the two ends of close pneumatic element (cylinder) 1 respectively, the cable connection on travel switch 3-1, the 3-2 will pick out from two ends respectively, and is very inconvenient.Two travel switch 3-1,3-2 are installed separately in the open, realize that degree of protection is IP65, install two waterproof outer cover.
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Summary of the invention
At the problems referred to above, the invention provides a kind of travel switch structure of pneumatic actuator, be convenient to cable connection on the travel switch, and do not need to install two waterproof outer cover.
Its technical scheme is such: a kind of travel switch structure of pneumatic actuator, it comprises cylinder block, guide rod, two travel switches, described guide rod is fixedlyed connected with the piston rod of described cylinder block by synchronizing bar, be installed with block on the described guide rod, the piston rod of described cylinder block stretches out, drive described block during withdrawal and clash into described travel switch respectively, it is characterized in that: described two travel switches are installed in the end near described cylinder block, described block is two, and described two blocks are installed in the two ends of described guide rod and lay respectively at the outside of two travel switches.
It is further characterized in that: described two travel switches are installed in piston rod one end near described cylinder block.
Because two travel switches are installed in a end near described cylinder block by a mounting panel, are convenient to cable connection, and will realize that degree of protection is IP65, only need to install a waterproof outer cover.
Description of drawings
Fig. 1 is the travel switch structure figure of existing pneumatic actuator;
Fig. 2 is the travel switch structure figure of pneumatic actuator of the present invention.
Embodiment
See Fig. 2, the present invention includes cylinder 1, guide rod 2, be installed in two travel switch 3-1 near cylinder block one end, 3-2, guide rod 2 is fixedlyed connected with the piston rod 5 of cylinder block by synchronizing bar 6, piston rod 5 withdrawals, driving guide rod 2 when stretching out is synchronized with the movement with piston rod 5, two block 4-1,4-2 lays respectively at two travel switch 3-2, the outside of 3-1 is installed in the two ends of guide rod 2, piston rod 5 stretches out, drive block 4-1 during withdrawal, 4-2 clashes into two travel switch 3-2 respectively, 3-1, by travel switch 3-2,3-1 provides two signals respectively, thereby has realized the automatic control of baffle door and insertion plate door.Because two travel switch 3-2,3-1 are installed in an end of close described cylinder block 1, facilitate the cable connection of travel switch 3-2,3-1 like this, will realize that simultaneously degree of protection is IP65, travel switch 3-2,3-1 are installed in only need be by adorning a waterproof outer cover when open-air.
Claims (2)
1. the travel switch structure of a pneumatic actuator, it comprises cylinder block, guide rod, two travel switches, described guide rod is fixedlyed connected with the piston rod of described cylinder block by synchronizing bar, be installed with block on the described guide rod, the piston rod of described cylinder block stretches out, drives when withdrawing described block and clashes into described travel switch respectively, it is characterized in that: described two travel switches are installed in the end near described cylinder block, described block is two, and the outside that lays respectively at two travel switches is installed in the two ends of described guide rod.
2. the travel switch structure of a kind of pneumatic actuator according to claim 1 is characterized in that: described two travel switches are installed in piston rod one end near described cylinder block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010165827 CN101819893A (en) | 2010-05-09 | 2010-05-09 | Travel switch structure of pneumatic actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010165827 CN101819893A (en) | 2010-05-09 | 2010-05-09 | Travel switch structure of pneumatic actuating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101819893A true CN101819893A (en) | 2010-09-01 |
Family
ID=42654933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010165827 Pending CN101819893A (en) | 2010-05-09 | 2010-05-09 | Travel switch structure of pneumatic actuating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101819893A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979624A (en) * | 2012-11-21 | 2013-03-20 | 江苏华强电力设备有限公司 | Control device for baffle door of air inlet channel of combustion engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0381579A (en) * | 1989-08-23 | 1991-04-05 | Marushin Shokai:Kk | Hydraulic cylinder interlocking method in pump for forced feed of ready-mixed concrete and device thereof |
| US5253575A (en) * | 1991-08-03 | 1993-10-19 | Mercedes-Benz Ag | Cover driving system |
| JP2000304120A (en) * | 1999-04-21 | 2000-11-02 | Shibaura Densan Kk | Linear actuator |
| CN2570020Y (en) * | 2002-08-30 | 2003-09-03 | 天津市天锻压力机有限公司 | Stroke stopping means for hydraulic press lifting cylinder |
| CN201065980Y (en) * | 2007-07-01 | 2008-05-28 | 王风军 | Water valve automatic controller |
| CN201705754U (en) * | 2010-05-09 | 2011-01-12 | 无锡力华科技有限公司 | Stroke switch structure of pneumatic executing mechanism |
-
2010
- 2010-05-09 CN CN 201010165827 patent/CN101819893A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0381579A (en) * | 1989-08-23 | 1991-04-05 | Marushin Shokai:Kk | Hydraulic cylinder interlocking method in pump for forced feed of ready-mixed concrete and device thereof |
| US5253575A (en) * | 1991-08-03 | 1993-10-19 | Mercedes-Benz Ag | Cover driving system |
| JP2000304120A (en) * | 1999-04-21 | 2000-11-02 | Shibaura Densan Kk | Linear actuator |
| CN2570020Y (en) * | 2002-08-30 | 2003-09-03 | 天津市天锻压力机有限公司 | Stroke stopping means for hydraulic press lifting cylinder |
| CN201065980Y (en) * | 2007-07-01 | 2008-05-28 | 王风军 | Water valve automatic controller |
| CN201705754U (en) * | 2010-05-09 | 2011-01-12 | 无锡力华科技有限公司 | Stroke switch structure of pneumatic executing mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979624A (en) * | 2012-11-21 | 2013-03-20 | 江苏华强电力设备有限公司 | Control device for baffle door of air inlet channel of combustion engine |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100901 |