CN206148301U - Pneumatic limit switch - Google Patents
Pneumatic limit switch Download PDFInfo
- Publication number
- CN206148301U CN206148301U CN201621135826.XU CN201621135826U CN206148301U CN 206148301 U CN206148301 U CN 206148301U CN 201621135826 U CN201621135826 U CN 201621135826U CN 206148301 U CN206148301 U CN 206148301U
- Authority
- CN
- China
- Prior art keywords
- limit switch
- core bar
- pneumatic limit
- seal receptacle
- touch panel
- 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
- 238000012856 packing Methods 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 18
- 239000000428 dust Substances 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000002411 adverse Effects 0.000 abstract description 7
- 210000004907 gland Anatomy 0.000 abstract 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Switch Cases, Indication, And Locking (AREA)
Abstract
The utility model provides a pneumatic limit switch. Pneumatic limit switch includes cylinder, core bar, touch panel, seal receptacle, gland nut and seal assembly, the cylinder the core with the touch panel connects gradually, the seal receptacle with gland nut all overlaps and locates the core bar, gland nut one end is fixed in the cylinder, the other end with seal receptacle screw thread butt, seal assembly locates the seal receptacle with between the core bar. The utility model provides a limit switch that pneumatic limit switch had solved prior art is difficult to the technical problem that uses under adverse circumstances.
Description
Technical field
The present invention relates to limit switch field, and in particular to a kind of pneumatic limit switch.
Background technology
Also known as travel switch, limit switch refers to that a class can cause what is switched off or close to set because of the relative motion of object
It is standby.The limit switch of prior art is difficult to use under the adverse circumstances such as vacuum, pressure, corrosive gas, high dust.
The content of the invention
The technical problem for using in the presence of a harsh environment is difficult to solve existing limit switch, the present invention provides one kind and is suitable to
The pneumatic limit switch that adverse circumstances are used.
A kind of pneumatic limit switch, including cylinder, core bar, touch panel, seal receptacle, clamp nut and black box, the gas
Cylinder, the core bar and the touch panel are sequentially connected, and the seal receptacle and the clamp nut are sheathed on the core bar, the pressure
The cylinder is fixed in tight nut one end, and the other end is abutted with the seal receptacle screw thread, and the black box is located at the sealing
Between seat and the core bar.
In a kind of preferred embodiment of the pneumatic limit switch that the present invention is provided, the pneumatic limit switch also includes two
Individual dust ring, dust ring described in are located between the clamp nut and the core bar, seal receptacle described in another dust ring
Between the core bar, near the touch panel side.
In a kind of preferred embodiment of the pneumatic limit switch that the present invention is provided, the touch panel is with core bar activity even
Connect.
In a kind of preferred embodiment of the pneumatic limit switch that the present invention is provided, the black box includes packing ring and close
Seal, the packing ring and the sealing ring are along the alternate setting of the core bar.
In a kind of preferred embodiment of the pneumatic limit switch that the present invention is provided, the black box also includes evacuating
Hole, the evacuation holes are located at packing ring described in.
In a kind of preferred embodiment of the pneumatic limit switch that the present invention is provided, the packing ring is copper packing ring.
Compared to prior art, the described pneumatic limit switch that the present invention is provided has the advantages that：
First, the pneumatic limit switch is provided with the black box, is realized using structures such as the packing ring, the sealing rings
Sealing.Adverse circumstances are separated with consumable accessory, is easy to use under various adverse circumstances.
2nd, the pneumatic limit switch is provided with the dust ring, prevents big dust particle from affecting into the black box
Sealing effectiveness, the pneumatic limit switch operation are more lasting, stable.
3rd, the pneumatic limit switch realizes switch effectiveness using the cylinder senses change in pressure, and simple structure is effective,
Signal stabilization is accurate, failure, crash rate bottom.
Description of the drawings
Fig. 1 is the structural representation of the pneumatic limit switch that this utility model is provided.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than the embodiment of whole.
Fig. 1 is referred to, is the structural representation of the pneumatic limit switch 1 that this utility model is provided.
The pneumatic limit switch 1 includes cylinder 11, core bar 12, touch panel 13, clamp nut 14, seal receptacle 15, sealing group
Part 16 and two dust rings 17.
The black box 16 includes three packing rings, 161, three sealing rings 162 and evacuation holes 163.161 He of the packing ring
The alternate setting successively of the sealing ring 162, the evacuation holes 163 are located at packing ring 161 described in.
The cylinder 11, the core bar 12 and the touch panel 13 are sequentially connected, and the touch panel 13 with the core bar 12 is
It is flexibly connected.The seal receptacle 15 and the clamp nut 14 are sheathed on the core bar 12, and 14 one end of the clamp nut is solid
Due to the cylinder 11, the other end is abutted with 15 screw thread of the seal receptacle.Dust ring 17 described in one is located at the clamp nut 14
Between the core bar 12, described in another dust ring 17 between seal receptacle 15 and the core bar 12, near the touch panel 13
Side.
The packing ring 161 is copper packing ring, and three packing rings 161 and three sealing rings 162 are along the cylinder 11
It is to 13 direction of the touch panel, alternate between the seal receptacle 15 and the core bar 12 successively.
When being embodied as, the packing ring 161 is compressed using the clamp nut 14, and then extrude the sealing ring 162 and pressed
The tight core bar 12, realizes sealing.Simultaneously using 163 evacuation of the evacuation holes, sealing effectiveness is further enhanced.
The seal receptacle 15 is installed in be needed to carry out spacing measured place, and being provided with the touch panel 13 can be according to different operating mode more
The touch panel 13 of unlike material is changed to adapt to different environment.When signal source touches the touch panel 13, the cylinder 11
With senses change in pressure, so as to obtain signal source, switch effectiveness is realized.
Compared to prior art, the described pneumatic limit switch 1 that the present invention is provided has the advantages that：
First, the pneumatic limit switch 1 is provided with the black box 16, using the packing ring 161, the sealing ring 162
Realize sealing etc. structure.Adverse circumstances are separated with consumable accessory, is easy to use under various adverse circumstances.
2nd, the pneumatic limit switch 1 is provided with the dust ring 17, prevents big dust particle from entering the black box 16
Sealing effectiveness is affected, it is more lasting, stable that the pneumatic limit switch 1 runs.
3rd, the pneumatic limit switch 1 realizes switch effectiveness using 11 senses change in pressure of the cylinder, and simple structure has
Effect, signal stabilization are accurate, failure, crash rate bottom.
Embodiments of the invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, it is every using this
Equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks
Domain, is included within the scope of patent protection of the present invention in the same manner.
Claims (6)
1. a kind of pneumatic limit switch, it is characterised in that：Including cylinder, core bar, touch panel, seal receptacle, clamp nut and sealing group
Part, the cylinder, the core bar and the touch panel are sequentially connected, and the seal receptacle and the clamp nut are sheathed on the core
Bar, described clamp nut one end are fixed on the cylinder, and the other end is abutted with the seal receptacle screw thread, and the black box is located at
Between the seal receptacle and the core bar.
2. pneumatic limit switch according to claim 1, it is characterised in that：The pneumatic limit switch is also anti-including two
Konisphere, dust ring described in are located between the clamp nut and the core bar, seal receptacle and institute described in another dust ring
State between core bar, near the touch panel side.
3. pneumatic limit switch according to claim 1, it is characterised in that：The touch panel is flexibly connected with the core bar.
4. according to the arbitrary described pneumatic limit switch of claim 1-3, it is characterised in that：The black box include packing ring and
Sealing ring, the packing ring and the sealing ring are along the alternate setting of the core bar.
5. pneumatic limit switch according to claim 4, it is characterised in that：The black box also includes evacuation holes, institute
Evacuation holes are stated located at packing ring described in.
6. pneumatic limit switch according to claim 4, it is characterised in that：The packing ring is copper packing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621135826.XU CN206148301U (en) | 2016-10-19 | 2016-10-19 | Pneumatic limit switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621135826.XU CN206148301U (en) | 2016-10-19 | 2016-10-19 | Pneumatic limit switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206148301U true CN206148301U (en) | 2017-05-03 |
Family
ID=58622713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621135826.XU Expired - Fee Related CN206148301U (en) | 2016-10-19 | 2016-10-19 | Pneumatic limit switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206148301U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113851334A (en) * | 2021-09-28 | 2021-12-28 | 中铁工程装备集团有限公司 | Stroke limiting device |
-
2016
- 2016-10-19 CN CN201621135826.XU patent/CN206148301U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113851334A (en) * | 2021-09-28 | 2021-12-28 | 中铁工程装备集团有限公司 | Stroke limiting device |
| CN113851334B (en) * | 2021-09-28 | 2023-10-27 | 中铁工程装备集团有限公司 | Stroke limiting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170503 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |