CN209822506U - Limit switch's protective housing and limit switch thereof - Google Patents
Limit switch's protective housing and limit switch thereof Download PDFInfo
- Publication number
- CN209822506U CN209822506U CN201920648333.3U CN201920648333U CN209822506U CN 209822506 U CN209822506 U CN 209822506U CN 201920648333 U CN201920648333 U CN 201920648333U CN 209822506 U CN209822506 U CN 209822506U
- Authority
- CN
- China
- Prior art keywords
- limit switch
- casing
- protective
- base
- casing base
- 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
- 230000001681 protective effect Effects 0.000 title claims abstract description 29
- 238000009434 installation Methods 0.000 claims abstract description 18
- 239000012780 transparent material Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Landscapes
- Switch Cases, Indication, And Locking (AREA)
Abstract
The utility model discloses a limit switch's protective housing and limit switch thereof, include the casing base and the casing apron that fasten and connect as an organic whole through the fastener, have the internal installation space used for installing the limit switch body, and the casing base both sides are equipped with inlet wire through-hole portion and spacing ejector pin portion respectively, the protective housing still includes the square mount pad used for installing the limit switch body, wherein, the casing base inner wall is equipped with the L type guide block that is used for the quick direction of square mount pad respectively all around; the utility model discloses mounting structure is convenient, especially adapted to carry out and popularize implementation and application in batches.
Description
Technical Field
The utility model belongs to belong to limit switch product manufacturing field, the utility model particularly relates to a limit switch's protective housing, the utility model discloses still relate to the limit switch that this protective housing used.
Background
Limit switches, also known as travel switches, can be mounted on relatively stationary or moving objects, in particular electrical switches that define the limit of movement of mechanical equipment. The limit switch has a limit protection function and is widely applied to a plurality of fields.
The limit switch mainly comprises an electric control element and a protective shell, and particularly comprises a switch body comprising an electric control element assembly, wherein the switch body is arranged in a closed shell formed by connecting an upper shell and a lower shell into a whole through a fastener. However, the conventional limit switch case is still poor in waterproof sealing performance and installation convenience.
For example, the utility model with the publication number of CN203250651U discloses a housing of a limit switch, which comprises a base and an upper cover, wherein a switch body is detachably mounted on the base through a base, wherein the base and the upper cover are fixedly connected through a screw or a clamp, and a sealing ring is arranged between the base and the upper cover, but the sealing ring is only mounted on the end surface and is not provided with other limit structures, so that the sealing ring is easy to shift during mounting and use, thereby causing sealing failure; moreover, the shell of the scheme is still poor in installation convenience, and particularly comprises poor installation accuracy of installing the base for the switch body on the base, so that inconvenience exists, and a high manufacturing defective rate is caused.
Accordingly, the applicant has desired improvements to the housing components of limit switches based on years of experience in the manufacture of limit switch products.
Disclosure of Invention
In view of this, the utility model aims at providing a limit switch's protective housing and limit switch thereof, mounting structure is convenient, is particularly suitable for popularizing in batches and implements the application.
The utility model adopts the technical scheme as follows:
the utility model provides a limit switch's protective housing, includes through fastener fastening connection casing base and casing apron as an organic whole, has the internally mounted space that is used for installing the limit switch body, just casing base both sides are equipped with inlet wire through-hole portion and spacing ejector pin portion respectively, protective housing is still including the square mount pad that is used for installing the limit switch body, wherein, casing base inner wall is equipped with the L type guide block that is used for the quick direction of square mount pad respectively all around.
Preferably, the housing base and the housing cover plate are in sealed clamping connection through a tooth-shaped labyrinth structure.
Preferably, the installation end face of the shell base is provided with a tooth-shaped groove, the installation end face of the shell cover plate is provided with a tooth-shaped lug which is in sealing clamping connection with the tooth-shaped groove, and the tooth-shaped groove and the tooth-shaped lug of the sealing clamping connection form the tooth-shaped labyrinth structure.
Preferably, inlet wire through-hole portion include with casing base one side threaded connection's inlet wire screw, just inlet wire screw's screw hole with internally mounted space intercommunication is used for the circular telegram circuit to connect.
Preferably, the limiting ejector rod part comprises a limiting ejector rod and an ejector rod threaded part, the limiting ejector rod extends from the limiting switch body and penetrates to the outside of one side of the shell base, and meanwhile, the limiting ejector rod threaded part is in threaded locking.
Preferably, the casing base adopts cast aluminum formed part, the casing apron adopts transparent material.
Preferably, the limit switch comprises a protective shell with an internal installation space and a limit switch body provided with the internal installation space, wherein the protective shell adopts the limit switch protective shell.
The utility model discloses a set up L type guide block around the casing base inner wall respectively, this L type guide block structure can do benefit to the quick installation location of square mount pad in the casing base, the utility model discloses the mounting structure is convenient, especially adapted to carry out the batch popularization and application;
the utility model discloses further preferably creatively provide and pass through flute profile labyrinth column structure with casing base and casing apron and realize sealed joint, avoided the consumption of sealing washer, sealed waterproof nature is good and effectively reduced the utility model discloses a cost.
Drawings
FIG. 1 is a schematic structural view of a lower limit switch protective housing according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the exploded structure of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 1;
fig. 4 is an enlarged schematic view of the structure at a in fig. 1.
Detailed Description
The embodiment of the utility model discloses limit switch's protective housing, include through fastener fastening connection casing base and casing apron as an organic whole, have the internally mounted space who is used for installing the limit switch body, and casing base both sides are equipped with inlet wire through-hole portion and spacing ejector pin portion respectively, and protective housing is still including the square mount pad that is used for installing the limit switch body, and wherein, casing base inner wall is equipped with the L type guide block that is used for the quick direction of square mount pad respectively all around.
The embodiment of the utility model provides a limit switch is still disclosed, including the limit switch body that has the protective housing in internally mounted space, installation internally mounted space, wherein, protective housing adopts as above limit switch's protective housing.
The utility model discloses a set up L type guide block around the casing base inner wall respectively, this L type guide block structure can do benefit to the quick installation location of square mount pad in casing base inside, the utility model discloses mounting structure is convenient, is particularly suitable for carrying out batch popularization implementation and application.
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
Please refer to fig. 1, 2 and 3, which illustrate a protective casing 100 of a limit switch, comprising a casing base 110 and a casing cover plate 120 fastened and connected as a whole by a fastener, wherein the protective casing 100 further comprises a square mounting seat 160 for mounting the limit switch body, and preferably, the casing base 110 is made of a cast aluminum molding, the casing cover plate 120 is made of a transparent material, and the casing cover plate 120 made of the transparent material is convenient for people to observe the internal state of the electric valve positioner and is convenient for maintenance; in the present embodiment, the circumference of the inner wall of the housing base 110 is respectively provided with an L-shaped guide block 111 for fast guiding the square mounting base 160;
preferably, the embodiment further provides an efficient waterproof sealing structure of the limit switch, and the housing base 110 and the housing cover plate 120 are further in sealed clamping connection through a tooth-shaped labyrinth structure 170; further preferably, in the present embodiment, a tooth-shaped groove 112 is provided on the installation end surface of the housing base 110, a tooth-shaped protrusion 121 sealingly engaged with the tooth-shaped groove 112 is provided on the installation end surface of the housing cover plate 120, and the tooth-shaped groove 112 and the tooth-shaped protrusion 121 sealingly engaged form a tooth-shaped labyrinth structure 170;
preferably, in this embodiment, the wire inlet through hole part 140 includes a wire inlet screw 141 in threaded connection with one side of the housing base 110, and a threaded hole of the wire inlet screw 141 is communicated with the internal installation space 130 for electrical circuit connection, and a wire inlet through hole sealing ring 181 is arranged in the threaded hole; the limiting ejector rod part 150 comprises a limiting ejector rod 151 and an ejector rod threaded part 152, the limiting ejector rod 151 extends from the limiting switch body and penetrates to the outside of one side of the shell base 110, meanwhile, the limiting ejector rod is locked through the ejector rod threaded part 152 in a threaded mode, and a first ejector rod sealing ring 182a and a second ejector rod sealing ring 182b are sleeved on the limiting ejector rod 151 located on two end faces of the ejector rod threaded part 152 respectively;
preferably, this embodiment further provides a limit switch, which includes a protection housing having an internal installation space, and a limit switch body (not shown) having an internal installation space, wherein the protection housing adopts the protection housing 100 of the limit switch as described above, and the limit switch body described in this embodiment can directly adopt the prior art, and the present invention is not particularly limited thereto, and therefore, the description is not specifically provided.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a limit switch's protective housing, includes through fastener fastening connection casing base and casing apron as an organic whole, has the internally mounted space that is used for installing the limit switch body, just casing base both sides are equipped with inlet wire through-hole portion and spacing ejector pin portion respectively, its characterized in that, protective housing is still including the square mount pad that is used for installing the limit switch body, wherein, casing base inner wall is equipped with the L type guide block that is used for the quick direction of square mount pad respectively all around.
2. The protective casing of the limit switch as claimed in claim 1, wherein the inlet wire through hole portion comprises an inlet wire screw member threadedly connected to one side of the casing base, and a threaded hole of the inlet wire screw member is communicated with the inner mounting space for electrical circuit connection.
3. The protective shell of the limit switch as claimed in claim 1, wherein the limit post part comprises a limit post and a post screw, the limit post extends from the limit switch body and penetrates to the outside of one side of the shell base, and is locked by the post screw.
4. The protective casing of the limit switch as claimed in claim 1, wherein the casing base is made of a cast aluminum molding, and the casing cover plate is made of a transparent material.
5. A limit switch comprising a protective case having an internal installation space, a limit switch body in which the internal installation space is installed, wherein the protective case employs the limit switch protective case of any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920648333.3U CN209822506U (en) | 2019-05-08 | 2019-05-08 | Limit switch's protective housing and limit switch thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920648333.3U CN209822506U (en) | 2019-05-08 | 2019-05-08 | Limit switch's protective housing and limit switch thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209822506U true CN209822506U (en) | 2019-12-20 |
Family
ID=68882883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920648333.3U Expired - Fee Related CN209822506U (en) | 2019-05-08 | 2019-05-08 | Limit switch's protective housing and limit switch thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209822506U (en) |
-
2019
- 2019-05-08 CN CN201920648333.3U patent/CN209822506U/en not_active Expired - Fee Related
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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: 20191220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |