CN110491698B - Portable waterproof travel switch - Google Patents
Portable waterproof travel switch Download PDFInfo
- Publication number
- CN110491698B CN110491698B CN201910957059.2A CN201910957059A CN110491698B CN 110491698 B CN110491698 B CN 110491698B CN 201910957059 A CN201910957059 A CN 201910957059A CN 110491698 B CN110491698 B CN 110491698B
- Authority
- CN
- China
- Prior art keywords
- shell
- leather sheath
- sealing
- sealing rubber
- thread
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 53
- 239000010985 leather Substances 0.000 claims abstract description 27
- 229920001971 elastomer Polymers 0.000 claims abstract description 23
- 238000001125 extrusion Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 8
- 229910052709 silver Inorganic materials 0.000 description 8
- 239000004332 silver Substances 0.000 description 8
- 230000003068 static effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- NEIHULKJZQTQKJ-UHFFFAOYSA-N [Cu].[Ag] Chemical compound [Cu].[Ag] NEIHULKJZQTQKJ-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- -1 polyoxymethylene Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/16—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
Landscapes
- Elevator Control (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Push-Button Switches (AREA)
Abstract
The invention relates to the technical field of electric appliance control, in particular to a portable waterproof travel switch, a leather sheath is arranged between a push rod cap and a shell, one end outer edge of the lower part of the leather sheath is matched with a circular groove on the periphery of a round hole of the shell, the outer edge of the lower part of the leather sheath is provided with a groove, the outer edge of the bottom of the leather sheath is in a barb shape, the lower part of a rear cover of a shell is provided with an external thread, a sealing rubber is arranged in a cavity of the external thread, a sealing ring is arranged in an inner cavity of the external thread, the upper part of the sealing ring abuts against the sealing rubber, the lower part of the sealing ring extends out of the external thread, the bottom of the external thread is connected with an internal thread of a thread cover, the thread cover moves upwards to drive the sealing ring to move upwards, the sealing rubber is extruded, deformation is generated when the sealing rubber is stressed by external force, and the sealing rubber is extruded towards the middle, a plurality of structural improvements are performed on the existing elevator travel, the waterproof effect of the elevator travel is better, the service life is prolonged, and more safety problems caused by water leakage can be avoided.
Description
Technical Field
The invention relates to the technical field of electric appliance control, in particular to a portable waterproof travel switch.
Background
The travel switch is one of position switches and is a common small-current master control electric appliance. The contact of the production mechanical moving part is enabled to act by utilizing the collision of the production mechanical moving part to realize the connection or disconnection of the control circuit, so that a certain control purpose is achieved. Typically, such switches are used to limit the position or travel of the machine's movement, to automatically stop, reverse, change speed, or automatically reciprocate the machine in a certain position or travel. The travel switch is mainly divided into a direct-acting type, a roller type, a micro-acting type and a combined type according to the structure, and the principle and the effect of different structural products are different.
The existing direct-acting elevator travel switch is unreasonable in structure, poor in working performance, unreliable in dynamic and static contact connection and unsafe in shell design. The patent of the invention is disclosed: travel switch for elevator application, patent number: 2014107055503 the patent includes action subassembly, static subassembly, conversion subassembly, closure assembly, and its characterized in that when action subassembly's pull rod receives external force effect conduction to the spring, the movable contact silver nail on the spring carries out the state switching of disconnection or closure to the stationary contact silver nail on the contact post, and this patent can play the guard action to the normal operating of each spare part in upper unit of product and the elevator, if elevator action is unusual or exceeds prescribed stroke distance, the switch just acts immediately and cuts off the power.
Along with the change of service environment, current travel switch is because structural design is unreasonable, can not reach the IP68 waterproof grade that requires on the market, and above-mentioned patent also has this problem, and waterproof effect is not good can reduce the life of switch, makes its risk improve greatly, consequently need improve and innovate prior art.
Disclosure of Invention
The invention aims to solve the problem of low service life of a switch caused by poor waterproof performance in the prior art, and provides a portable waterproof travel switch which is convenient to use and good in effect.
In order to achieve the above purpose, a portable waterproof travel switch is designed, which comprises a housing, a round hole is arranged at one end of the housing, the round hole is used for penetrating a push rod cap, a round groove is arranged at the periphery of the outer surface of the round hole, a square hole is arranged at the other end of the housing, a groove is arranged at the periphery of the square hole, and the portable waterproof travel switch is matched and connected with a notch on a rear cover of the housing, and is characterized by further comprising
The leather sheath is arranged between the push rod cap and the shell, the outer edge of one end of the lower part of the leather sheath is matched with the circular groove on the periphery of the round hole of the shell, the outer edge of the lower part of the leather sheath is provided with a groove, so that the outer edge of the bottom of the leather sheath is in a barb shape,
the lower part of the shell rear cover is provided with an external thread, sealing rubber is arranged in a cavity of the external thread, the sealing ring is arranged in an inner cavity of the external thread, the upper part of the sealing ring abuts against the sealing rubber, the lower part of the sealing ring extends out of the external thread, the bottom of the external thread is connected with the internal thread of the thread cover, the thread cover moves upwards to drive the sealing ring to move upwards, the sealing rubber is extruded, and deformation is generated when the sealing rubber is subjected to external force and is extruded to the middle.
The shell is characterized in that a shell sealing gasket is arranged in a groove on the periphery of the square hole of the shell, a rear cover sealing gasket is arranged in a notch on the rear cover of the shell, and the cross sections of the shell sealing gasket and the rear cover sealing gasket are circular.
The push rod cap is provided with a buckle which is matched and connected with the touch rod.
The internal thread of the thread cover and the external thread on the shell rear cover are trapezoidal threads.
An inner shell is also arranged in the outer shell.
Compared with the prior art, the invention has the advantages that: many structural improvements are made to the existing elevator travel, so that the waterproof effect of the elevator travel is better, the service life is prolonged, and more safety problems caused by water leakage can be avoided.
Drawings
FIG. 1 is an exploded view of the overall structure of the present invention;
FIG. 2 is a schematic view of a prior art holster;
FIG. 3 is a schematic view of a holster according to the present invention;
FIG. 4 is a schematic illustration of a push rod cap snap fit of the present invention;
FIG. 5 is a schematic view of the back cover and back cover gasket of the housing of the present invention;
FIG. 6 is a schematic view of the double seal of the back cover and the outer shell of the housing of the present invention;
FIG. 7 is a schematic view of the assembly of the screw cap and the housing back cap of the present invention;
in the figure: 1. the device comprises an outer shell 2, an inner shell 3, an inner shell cover plate 4, a shell rear cover 5, a threaded cover 6, a contact support 7, a push rod cap 9, a sealing ring 10, a leather sheath 11, a shell sealing gasket 12, a rear cover sealing gasket 13, sealing rubber 14, a left fixed contact plate 15, a right fixed contact plate 16, a movable contact plate 17, a contact spring 18, a return spring 19, a manual return spring 20, a spring pressing pad 21, dynamic and static contacts 22, a shell rear cover screw 23 and a wiring screw.
Detailed Description
The construction and principles of such a device will be apparent to those skilled in the art from the following description of the invention taken in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
See fig. 1: the cavity has been seted up in the middle of the inner housing, the contact support sets up in the cavity, contact support front end is equipped with reset spring, reset spring supports the baffle of inner housing cavity front end, be equipped with the spring pressure pad between reset spring and the baffle, the contact support rear end is equipped with the protruding pole, protruding pole inserts touching pole one end, the push rod cap is connected to the touching pole other end, contact support one side is equipped with the movable contact board, be equipped with movable contact on the movable contact board, inner housing bottom is equipped with the fixed contact board, be equipped with movable contact on the fixed contact board, movable contact silver nail on the movable contact board opens or closed state switches to movable contact silver nail on the fixed contact board, the inner housing sets up inside the shell, square hole is seted up to shell one end, square hole periphery is equipped with the recess, be connected with the notch cooperation on the shell back lid, the shell back lid passes through threaded connection with the screw cap, the shell other end is equipped with the round hole, the periphery of round hole surface is equipped with circular recess, the leather sheath is connected with the round hole cooperation of shell, the push rod cap passes leather sheath and round hole is connected with touching pole.
See fig. 2 and 3: the existing leather sheath bottom is the linear type, and the recess is seted up to this design with the leather sheath bottom outer edge, makes the leather sheath bottom outer edge be barb form, and is inconvenient when linear type leather sheath is installed, leads to inefficiency, and waterproof performance is not good simultaneously, barb form leather sheath simple to operate, and the barb makes friction force increase between leather sheath and the shell round hole simultaneously, and waterproof performance is better, and the leather sheath adopts elastic material to make simultaneously, is equipped with the through-hole in the leather sheath, and leather sheath upper portion one end aperture is less than the aperture of push rod cap.
See fig. 7: the screw plug waterproof in the market is achieved by indirectly tightening the rubber ring in the screw plug and is unidirectional, the screw cap directly presses the sealing rubber, the direction is bidirectional, two ends of the sealing rubber are extruded towards the middle when the sealing rubber is subjected to external force, so that the cable is tightly wrapped to achieve the sealing waterproof effect, the boss is additionally arranged at the bottom of the rear cover of the shell, the hole at the lead-out wire hole of the screw cap is designed to be combined with the size setting of the national standard cable, and the sealing rubber can be better extruded to enable the sealing rubber to be completely sealed with the lead-out wire cable when the sealing ring, the sealing rubber and the rear cover of the shell are matched, and meanwhile, the effect of tightening is increased due to the design of the trapezoidal threads to achieve the waterproof effect.
The shell rear cover and the external thread are of an integrated structure, the height of the sealing rubber is smaller than that of the external thread, and a step structure is formed between the sealing rubber and the inner cavity of the external thread.
See fig. 4: the structure of the touch rod and the push rod cap is modified, the buckling mode is added, and the waterproof performance of the leather sheath can be better improved.
See fig. 5 and 6: the shell rear cover and the shell are both provided with concave grooves, the concave grooves of the shell rear cover are internally provided with rear cover sealing gaskets, the concave grooves of the shell are internally provided with shell sealing gaskets, the waterproof performance can be improved to the greatest extent by adopting an inner-outer two-layer sealing structure, meanwhile, the cross section shape of the sealing gaskets is changed into a round shape from a common flat shape, the inner-outer sealing effect can be improved, the waterproof performance is better, and meanwhile, the round shape also enables the installation of the sealing gaskets to be more convenient.
See fig. 1: the travel switch plays a role in protecting the normal operation of the upper unit of the product and each part in the elevator, if the elevator is abnormal in action or exceeds a specified travel distance, the switch immediately acts to cut off a power supply, or drives other parts to enable the elevator to enter a safe state according to design requirements, a push rod cap of an action assembly is transmitted to a contact support under the action of external force, and a movable contact silver nail on a movable contact plate on the contact support switches the state of opening or closing the movable contact silver nails on a left fixed contact plate and a right fixed contact plate.
The movable contact plate and the static contact plate are made of H62 copper, the static contact silver nails and the movable contact silver nails are made of silver-copper composite materials, the touch rod is made of polyoxymethylene, the contact spring, the reset spring and the manual reset spring are made of 304 stainless steel, the leather sheath is made of silicone rubber, and the inner shell pressing plate is made of polycarbonate.
Claims (5)
1. The utility model provides a portable waterproof travel switch, includes shell (1), round hole has been seted up to shell (1) one end, and the round hole is used for passing push rod cap (8), and the periphery of round hole surface is equipped with circular recess, and shell (1) other end is equipped with the square hole, and the square hole periphery is equipped with the recess, cooperates with notch on lid (4) behind the casing to be connected, its characterized in that still includes
The leather sheath (10), the leather sheath (10) is arranged between the push rod cap (8) and the shell (1), the outer edge of one end of the lower part of the leather sheath (10) is matched with the round groove on the periphery of the round hole of the shell, the outer edge of the lower part of the leather sheath is provided with a groove, so that the outer edge of the bottom of the leather sheath is in a barb shape,
the casing rear cover (4) lower part is equipped with the external screw thread, is equipped with sealing rubber (13) in the cavity of external screw thread, and sealing washer (9) set up in the inner chamber of external screw thread, and sealing rubber (13) are supported on sealing washer (9) upper portion, and the external screw thread is stretched out to the lower part of sealing washer (9), and the internal screw thread connection of external screw thread bottom and screw thread lid, screw thread lid (5) upward movement drive sealing washer upward movement, extrusion sealing rubber, deformation is produced when sealing rubber receives external force, extrudees to the centre.
2. A portable waterproof travel switch as claimed in claim 1, wherein: the shell is characterized in that a shell sealing gasket (11) is arranged in a groove on the periphery of the square hole of the shell, a rear cover sealing gasket (12) is arranged in a notch on the rear cover (4) of the shell, and the cross sections of the shell sealing gasket (11) and the rear cover sealing gasket (12) are circular.
3. A portable waterproof travel switch as claimed in claim 1, wherein: the push rod cap (8) is provided with a buckle which is matched and connected with the touch rod (7).
4. A portable waterproof travel switch as claimed in claim 1, wherein: the internal thread of the thread cover and the external thread on the shell rear cover are trapezoidal threads.
5. A portable waterproof travel switch as claimed in claim 1, wherein: an inner shell (2) is also arranged in the outer shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910957059.2A CN110491698B (en) | 2019-10-10 | 2019-10-10 | Portable waterproof travel switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910957059.2A CN110491698B (en) | 2019-10-10 | 2019-10-10 | Portable waterproof travel switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110491698A CN110491698A (en) | 2019-11-22 |
| CN110491698B true CN110491698B (en) | 2024-03-29 |
Family
ID=68544786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910957059.2A Active CN110491698B (en) | 2019-10-10 | 2019-10-10 | Portable waterproof travel switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110491698B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08315662A (en) * | 1995-05-12 | 1996-11-29 | Alps Electric Co Ltd | Switch device sealing structure |
| AU2015101364A4 (en) * | 2015-09-21 | 2015-11-05 | Dongyang Linix Machine Electricity Co.,Ltd. | A Sealing and dust-proof structure for electric push rod |
| CN205140797U (en) * | 2015-11-03 | 2016-04-06 | 乐淸市朗齐尔电器有限公司 | Piezoelectricity switch of improvement structure |
| CN205282319U (en) * | 2016-01-07 | 2016-06-01 | 叶信谊 | Waterproof and dust protected switch |
| WO2016110181A1 (en) * | 2015-01-09 | 2016-07-14 | 南通昌荣机电有限公司 | Travel switch |
| CN106160317A (en) * | 2016-08-31 | 2016-11-23 | 浙江晶星齿轮电机有限公司 | A kind of Wet-dry motor of band wiring end cover |
| CN206379293U (en) * | 2016-12-26 | 2017-08-04 | 惠州市弘宝电器有限公司 | One kind strengthens waterproof micro switch |
| CN207868095U (en) * | 2018-03-19 | 2018-09-14 | 山东省产品质量检验研究院 | A kind of waterproof high sealing travel switch |
| CN210743830U (en) * | 2019-10-10 | 2020-06-12 | 上海华晟电器有限公司 | Portable waterproof travel switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB715780A (en) * | 1952-03-12 | 1954-09-22 | Joseph Charles Winterschladen | Screw plug stoppers |
-
2019
- 2019-10-10 CN CN201910957059.2A patent/CN110491698B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08315662A (en) * | 1995-05-12 | 1996-11-29 | Alps Electric Co Ltd | Switch device sealing structure |
| WO2016110181A1 (en) * | 2015-01-09 | 2016-07-14 | 南通昌荣机电有限公司 | Travel switch |
| AU2015101364A4 (en) * | 2015-09-21 | 2015-11-05 | Dongyang Linix Machine Electricity Co.,Ltd. | A Sealing and dust-proof structure for electric push rod |
| CN205140797U (en) * | 2015-11-03 | 2016-04-06 | 乐淸市朗齐尔电器有限公司 | Piezoelectricity switch of improvement structure |
| CN205282319U (en) * | 2016-01-07 | 2016-06-01 | 叶信谊 | Waterproof and dust protected switch |
| CN106160317A (en) * | 2016-08-31 | 2016-11-23 | 浙江晶星齿轮电机有限公司 | A kind of Wet-dry motor of band wiring end cover |
| CN206379293U (en) * | 2016-12-26 | 2017-08-04 | 惠州市弘宝电器有限公司 | One kind strengthens waterproof micro switch |
| CN207868095U (en) * | 2018-03-19 | 2018-09-14 | 山东省产品质量检验研究院 | A kind of waterproof high sealing travel switch |
| CN210743830U (en) * | 2019-10-10 | 2020-06-12 | 上海华晟电器有限公司 | Portable waterproof travel switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110491698A (en) | 2019-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210743830U (en) | Portable waterproof travel switch | |
| EP2816580B1 (en) | On-off transmission device for high voltage electric switch | |
| CN110491698B (en) | Portable waterproof travel switch | |
| CN203397940U (en) | Position switch | |
| CN210722825U (en) | Waterproof microswitch | |
| CN201117511Y (en) | Push-button switch | |
| CN203746707U (en) | Waterproof micro switch | |
| CN205376355U (en) | Waterproof button switch | |
| CN106264052B (en) | Juice extractor with the auxiliary bullet formula safety switch of waterproof | |
| CN116153686B (en) | Charging gun mechanical switching device | |
| CN203596296U (en) | Novel waterproof switch | |
| CN112563059A (en) | Switch expansion piece sealing device based on mechanical sealing element design | |
| CN203312155U (en) | Non-self-reset pressure switch for household electrical appliances | |
| CN206312838U (en) | A kind of moving contact structure for thermal overload relay stop button function | |
| CN219393207U (en) | Buckle formula button wiring base | |
| CN201495013U (en) | Device for prevention fingers from being clamped in escalator | |
| CN212628865U (en) | Waterproof wireless remote controller | |
| CN202905535U (en) | Automobile button switch | |
| CN220731363U (en) | Waterproof travel switch | |
| CN211088099U (en) | Novel AC/DC auxiliary switch | |
| CN219575422U (en) | A high-power micro-gap switch for garden instrument | |
| CN218384952U (en) | Dustproof on-off trigger switch with instant structure | |
| CN219047341U (en) | Electronic cigarette | |
| CN217983165U (en) | Key and lamp for automobile using same | |
| CN220933954U (en) | Spring mechanism and keyboard using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |