CN209357639U - A kind of travel switch with high-protection level - Google Patents

Abstract

The utility model provides a kind of travel switch with high-protection level, including shell, compression bar, Switch main body and waterproof connector lug, the seal box for sealing the Switch main body is additionally provided in the shell, one end of the seal box is sealing epithelium, the compression bar passes through the appearance face contact of the shell and the sealing epithelium, and one end of the Switch main body is contacted with the inner surface of the sealing epithelium；The other end of the seal box is installed with the waterproof connector lug connecting with the Switch main body other end, and the waterproof connector lug passes through the shell and connect with external device.The utility model has the advantages that practical, high production efficiency, simple process and production cost are low.

Description

A kind of travel switch with high-protection level

Technical field

The utility model relates to a kind of travel switches, specifically, relate to a kind of stroke with high-protection level and open It closes.

Background technique

The application field and application industry of current travel switch are more and more, for example as limit switch, access control, very To the detecting element that whether can be opened as well lid；Certain occasions may require that travel switch has higher degree of protection, For example when for well lid unlatching/closing detection, because installation is with inspection shaft, there is the possibility being flooded not, it requires travel switch Degree of protection to reach IP67 or more (comprising IP67), and well lid unlatching/closing detection demand is very big.

The conventional safety grade of existing market upper stroke switch is usually IP65, and a small number of special types can accomplish IP67, And the degree of protection of usually travel switches I P67 is realized by glue envelope technique, i.e., it is associated components are close by way of encapsulating Envelope is in the housing.The process is more complicated for this mode, and because needing that sealant is waited to solidify, therefore the production time is longer, and then leads Higher cost is caused, the popularization and use of product are significantly impacted.Therefore it is badly in need of a simple process, low in cost, protection etc. at present Grade can reach the travel switch of IP67.

In order to solve the above problems, people are seeking always a kind of ideal technical solution.

Summary of the invention

The purpose of this utility model be in view of the deficiencies of the prior art, thus provide a kind of practical, simple process and The low travel switch with high-protection level of production cost.

To achieve the goals above, the technical scheme adopted by the utility model is a kind of row with high-protection level Cheng Kaiguan, including shell, compression bar, Switch main body and waterproof connector lug are additionally provided with for sealing the switch in the shell The seal box of ontology, one end of the seal box are sealing epithelium, and the compression bar passes through the shell and the sealing epithelium Appearance face contact, one end of the Switch main body are contacted with the inner surface of the sealing epithelium；The other end of the seal box is solid Equipped with the waterproof connector lug connecting with the Switch main body other end, the waterproof connector lug passes through the shell and external device Connection.

Based on above-mentioned, the Switch main body includes that the pushing block that the sealing epithelium inner surface is arranged in, one end are pushed away with described The affixed push rod of block, the movable contact for being installed in the push rod other end and the stationary contact being connect with the waterproof connector lug, institute It states and is additionally provided with reset spring on push rod.

Based on above-mentioned, the pushing block corresponds to the compression bar and is arranged in the sealing epithelium inner surface.

Based on above-mentioned, the sealing epithelium is the wedge shaped cyclic structure in outer, and the inside of the shell is wedge structure, And the wedge structure of the sealing epithelium outer mutually agrees with the wedge structure on the inside of the shell.

The utility model has substantive features and progress compared with the prior art, and specifically, the utility model passes through close Jacket and sealing epithelium will be pressed by the core element of the travel switch --- Switch main body is sealed, and by sealing epithelium The movement of bar passes to Switch main body, to cause the signal of Switch main body to convert；Such production technology does not need to carry out glue envelope, section It makes an appointment and cost, and only needs seal box fixed inside the shell, its protection level can be improved and assembly is simple, be applicable in large quantities of lifes It produces.

Detailed description of the invention

Fig. 1 is the schematic structural cross-sectional view of embodiment 1.

Fig. 2 is the structural schematic diagram of Switch main body in the utility model embodiment 2.

In figure: 1. compression bars；2. shell；3. seal box；4. sealing epithelium；5. Switch main body；6. waterproof connector lug；7. pushing away Block；8. push rod；9. movable contact；10. stationary contact；11. spring.

Specific embodiment

Below by specific embodiment, the technical solution of the utility model is described in further detail.

Embodiment 1

As shown in Figure 1, the utility model provides a kind of travel switch with high-protection level, including shell 2, compression bar 1, Switch main body 5 and waterproof connector lug 6 are additionally provided with the seal box 3 for sealing the Switch main body 5 in the shell 2.

One end of the seal box 3 is sealing epithelium 4, it is preferred that the sealing epithelium 4 is soft, wear-resistant material, described Sealing epithelium 4 is the wedge shaped cyclic structure in outer, and the inside of the shell 2 is wedge structure, and 4 outer of sealing epithelium The wedge structure of 2 inside of wedge structure and the shell mutually agree with；The compression bar 1 passes through the shell 2 and the sealing skin The appearance face contact of film 4, one end of the Switch main body 5 is contacted with the inner surface of the sealing epithelium 4, when the compression bar 1 exists When acting under the action of external device, the sealing epithelium 4 can deformation occurs, and the Switch main body 5 is by perceiving the sealing The deformation of epithelium 4 judges whether the compression bar 1 acts, and changes the state of its switching signal.

The other end of the seal box 3 is installed with the waterproof connector lug 6 connecting with 5 other end of Switch main body, described Waterproof connector lug 6 passes through the shell 2 and connect with external device, when the Switch main body 5 judges that the compression bar 1 acts When, the switching signal of the Switch main body 5 can also change therewith, and be set by the waterproof connector lug 6 output to the external world It is standby.

In production, first the Switch main body 5, the waterproof connector lug 6 and the seal box 3 are assembled, then by institute It states compression bar 1 to assemble with the shell 2, then the seal box 3 assembled is fixed on inside the shell 2, and use spiral shell The waterproof wiring 6 is fixed on the shell 2 by the equipment such as silk.

The utility model is by seal box and sealing epithelium by the core element of the travel switch --- Switch main body carries out Sealing, and the movement of compression bar is passed to by Switch main body by sealing epithelium, to cause the signal of Switch main body to convert；Such life Production. art does not need to carry out glue envelope, saves time and cost, and only needs seal box fixed inside the shell, can improve it and protect water Flat and assembly is simple, is applicable in mass production.

Embodiment 2

It is in place of this implementation and the difference of embodiment 1: as shown in Fig. 2, the Switch main body 5 includes being arranged described close Pushing block 7, one end and the affixed push rod 8 of the pushing block 7 of 4 inner surface of strip of paper used for sealing film, the movable contact for being installed in 8 other end of push rod 9 and the stationary contact 10 that is connect with the waterproof connector lug 6, reset spring 11 is additionally provided on the push rod 8.

Under normal condition, the movable contact 9 and the stationary contact 10 are not contacted, and the switching signal of the Switch main body 5 is Off-state；

When the compression bar 1 acts under the action of external device, deformation occurs for the sealing epithelium 4, to drive institute It states pushing block 7 to move and contact with the push rod 8, the push rod 8 moves downward under the action of pushing block 7, at this point, described dynamic Contact 9 and the stationary contact 10 contact, and the switching signal of the Switch main body 5 is switched to on-state, and passes through the waterproof Connector lug 6 is exported to external device.

Embodiment 3

Be in place of the difference of the present embodiment and embodiment 2: the corresponding setting of compression bar 1 of the pushing block 7 is in the sealing 4 inner surface of epithelium, enables the movement of the perception compression bar 1 of the pushing block 7 promptly and accurately.

Finally it should be noted that: above embodiments are only to illustrate the technical solution of the utility model rather than limit it System；Although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should Understand: specific implementation of the utility model can still be modified or is equally replaced to some technical characteristics It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model In range.

Claims (5)

1. a kind of travel switch with high-protection level, including shell, compression bar, Switch main body and waterproof connector lug, feature It is: is additionally provided with the seal box for sealing the Switch main body in the shell, one end of the seal box is sealing skin Film, the compression bar pass through the shell and it is described sealing epithelium appearance face contact, one end of the Switch main body with it is described close The inner surface of strip of paper used for sealing film contacts；The other end of the seal box is installed with the waterproof wiring connecting with the Switch main body other end Head, the waterproof connector lug pass through the shell and connect with external device.

2. the travel switch according to claim 1 with high-protection level, it is characterised in that: the Switch main body includes Pushing block, one end and the affixed push rod of the pushing block of the sealing epithelium inner surface are set, are installed in the push rod other end Movable contact and the stationary contact that is connect with the waterproof connector lug, be additionally provided with reset spring on the push rod.

3. the travel switch according to claim 2 with high-protection level, it is characterised in that: described in the pushing block is corresponding Compression bar is arranged in the sealing epithelium inner surface.

4. the travel switch according to claim 1 or 2 or 3 with high-protection level, it is characterised in that: the sealing skin Film is the wedge shaped cyclic structure in outer, and the inside of the shell is wedge structure, and the wedge shape of the sealing epithelium outer is tied Structure mutually agrees with the wedge structure on the inside of the shell.

5. the travel switch according to claim 4 with high-protection level, it is characterised in that: the sealing epithelium is soft Matter wear-resistant material.