CN208848781U - Lifting switch - Google Patents

Abstract

The utility model relates to switching technique fields, especially disclose a kind of lifting switch, including lower case, upper cover and the switch block being arranged in lower case and upper cover, the switch block includes contact, actuator and flexible tarpaulin, tarpaulin is towards upper cover, the opening exposed for the end face of tarpaulin is provided on upper lid, after the upper cover is connected on tarpaulin and lower case constitutes clamping setting.Using the above structure, it is simple to provide a kind of structure, easy to process, install convenient, sealing waterproofing grade is high, the low lifting switch of production cost.

Description

Lifting switch

Technical field

The utility model relates to switching technique field, especially a kind of lifting switch applied in truck hoisting system.

Background technique

Lifting switch also makes hydraulic overturning switch, and is an important component of automobile, its major function is driven for truck It sails room hoisting system and power supply signal is provided, lift driver's cabin realization freely, pin and drive the subsequent switch button of tire, then will The driving lever of driver's cabin rotates counterclockwise to bottom, and driver's cabin rises, and hoisting system power supply is connected；It unclamps and drives the subsequent switch of tire Button, then the driving lever of driver's cabin is rotated into bottom along needle, driver's cabin is fallen, and hoisting system power supply disconnects.

Currently, lifting switch generally comprises lower case, upper cover and the switch block being arranged in lower case and upper cover, under Shell and the Hermetical connecting structure of upper cover are to carry out gluing sealing in its junction, and such Hermetical connecting structure is less reliable, It is easy to appear the switch failure failure because of caused by the decaying of sealant cementability, and there are complex production process, quality is difficult to The problems such as control, poor reliability is at high cost, and switch degree of protection is lower, it is difficult to meet the requirement of auto vendor's vehicle.

Summary of the invention

In order to overcome the deficiencies of the prior art, the utility model provides, and a kind of structure is simple, easy to process, and installation is just Victory, sealing waterproofing grade is high, the low lifting switch of production cost.

To achieve the goals above, the technical solution adopted in the utility model is: a kind of lifting switch, including lower case, Upper cover and the switch block being arranged in lower case and upper cover, the switch block include contact, actuator and have bullet The tarpaulin of property, tarpaulin are provided with the opening exposed for the end face of tarpaulin on upper lid, the upper cover is connected to towards upper cover After on tarpaulin and lower case constitutes clamping setting.

In above-mentioned technical proposal, preferred tarpaulin is made of rubber material, can be made by opening pressing tarpaulin in this way It is deformed, and actuator and contact are successively set between tarpaulin and lower case, can drive actuator after tarpaulin deformation, so Actuator promotes contact to be connected afterwards, realizes the connection of switch, because having opening on upper lid, so upper cover need to be connected to tarpaulin Upper composition is tightly connected, and can avoid dust in this way or rainwater enters in lower case, and upper cover and lower case can be subtracted by clamping connection Assembly process is switched less, improves switch safety,

As the further setting of the utility model, the end of the lower case towards upper cover is provided with the convex of insertion upper cover Ring is provided with the first shoulder rank and the second shoulder rank being mutually clamped between the outer peripheral surface of bulge loop and the inner wall of upper cover.

In above-mentioned technical proposal, construction of switch design is simple, install convenient, and switch cost greatly reduces, in the past Construction of switch is complicated, and it is more to be related to part, is mostly metalwork it is difficult to ensure that processing technology, and assembly technology is cumbersome, influences Such switch production efficiency and profit, and the structure of the design is mostly plastic part, easy injection molding, it is light-weight.

As the further setting of the utility model, the first shoulder rank is the convex annular being arranged on bulge loop outer peripheral surface Platform, the second shoulder rank are the fixture block being arranged on upper cover inner wall, and the end face of fixture block towards annular convex platform is inclined to set.

In above-mentioned technical proposal, upper cover is matched with lower case detent, and fixture block is made to snap into end face and the ring of lower case completely In the detent formed between shape boss, so that lower case and upper cover be made closely to connect, switch is fully sealed, improve safety and Reliability.

As the further setting of the utility model, gland, one end of gland are provided between the upper cover and tarpaulin It is pressed on tarpaulin, the other end is pressed on the stop collar on the inner wall that upper cover is arranged in.

In above-mentioned technical proposal, clamping sealing mainly applies axial pressure to gland by upper cover, is transferred to tarpaulin, The position for contacting it with tarpaulin squeezes stress, so that leakproofness be made to reach good result.

As the further setting of the utility model, the end face that the gland is pressed on tarpaulin is serrated.

In above-mentioned technical proposal, because tarpaulin is rubber material, so gland can generate gently after being connected on tarpaulin Light deformation can be such that jagged end is embedded in tarpaulin, and jagged structure have the effect of it is multi-layer sealed, improve it is close Feng Xing prolongs the service life.

As the further setting of the utility model, it is provided on the opposite face of the lower case and upper cover and is mutually inserted Convex block and groove.

In above-mentioned technical proposal, the setting of convex block and groove has the function of positioning in the circumferential, avoids upper cover and lower casing It is relatively rotated between body, connects more stable, better tightness.

As the further setting of the utility model, the actuator includes the guide holder being arranged in below tarpaulin and pushes away Bar, push rod, which is threaded through on guide holder and constitutes guiding sliding with guide holder, to be cooperated, the opening of one end face upper cover of the push rod, Spring is provided between the other end and the bottom surface of lower case, the correspondence two sides of push rod are provided with the movable contact spring to link with it, lower casing Static contact corresponding with movable contact spring is provided on the bottom surface of body, movable contact spring and static contact constitute the contact, movable contact spring court It is arranged to the end of static contact in bending.

In above-mentioned technical proposal, the way of contact of switch, which is contacted by previous contact with the intracorporal binding post of lower casing, to be changed to Movable contact spring is contacted with static contact, and is oriented to movable contact spring, i.e. the guiding cooperation of push rod and guide holder, and movable contact spring is prevented to be pressurized In contact process, move radially and cause switch contact bad, the material selection of movable contact spring is import beryllium copper, have it is stronger resist it is tired Labor and preferable electric conductivity, mechanical life are stronger, and the material of existing contact is ordinary copper material, and mechanical life is poor, separately The material of the material and push rod of outer lower case and upper cover selects the higher plastic material of resistance to temperature, ensure that switch in harsh ring Reliability under the conditions of border, prolongs the service life.

The utility model is further described with reference to the accompanying drawing.

Detailed description of the invention

Attached drawing 1 is the utility model specific embodiment appearance diagram；

Attached drawing 2 is the A-A cross-sectional view of attached drawing 1；

Attached drawing 3 is the utility model specific embodiment appearance diagram；

Attached drawing 4 is the B-B cross-sectional view of attached drawing 3；

Attached drawing 5 is the utility model specific embodiment Structure explosion diagram.

Specific embodiment

Specific embodiment of the utility model is as shown in Figs. 1-5, a kind of lifting switch, including lower case 1, upper cover 2 and Switch block in lower case 1 and upper cover 2 is set, and the switch block includes contact 3, actuator 4 and flexible Tarpaulin 5, tarpaulin 5 are provided with the opening 21 exposed for the end face of tarpaulin 5 in upper cover 2, the upper cover 2 is supported towards upper cover 2 After connecing on tarpaulin 5 and lower case 1 constitutes clamping setting.The elasticity of tarpaulin 5 refers to that it can be stretched or compressional deformation, excellent The tarpaulin 5 of choosing is made of rubber material, can make its deformation, actuator 4 and contact by 21 pressing tarpaulin 5 of opening in this way 3 are successively set between tarpaulin 5 and lower case 1, and tarpaulin 5 can drive actuator 4 after deforming, and then actuator 4 promotes to connect Contact element 3 be connected, realize the connection of switch, because in upper cover 2 have opening 21, so upper cover 2 need to be connected on tarpaulin 5 constitute it is close Envelope connection, can avoid dust in this way or rainwater enters in lower case 1, and upper cover 2 and lower case 1 can be reduced open by clamping connection Assembly process is closed, switch safety is improved,

The end of above-mentioned lower case 1 towards upper cover 2 be provided with insertion upper cover 2 bulge loop 11, the outer peripheral surface of bulge loop 11 with it is upper The the first shoulder rank 111 and the second shoulder rank 22 being mutually clamped are provided between the inner wall of lid 2.Construction of switch design is simple, and installation is just Victory, and switch cost greatly reduces, previous construction of switch is complicated, and it is more to be related to part, be mostly metalwork it is difficult to ensure that Processing technology, and assembly technology is cumbersome, influences such switch production efficiency and profit, and the structure of the design is mostly plastics Part, easy injection molding are light-weight.

Above-mentioned first shoulder rank 111 is the annular convex platform 111 being arranged on 11 outer peripheral surface of bulge loop, and the second shoulder rank 22 is that setting exists Fixture block 22 on 2 inner wall of upper cover, fixture block 22 are inclined to set towards the end face of annular convex platform 111 221.This be obliquely installed be in order to Conveniently slip over annular convex platform 111, upper cover 2 is matched with 1 detent of lower case, make fixture block 22 snap into completely the end face of lower case 1 with In the detent formed between annular convex platform 111, so that lower case 1 and upper cover 2 be made closely to connect, switch is fully sealed, improves Safety and reliability.

Gland 6 is provided between above-mentioned upper cover 2 and tarpaulin 5, one end of gland 6 is pressed on tarpaulin 5, and the other end supports It is pressed on the stop collar 23 being arranged on the inner wall of upper cover 2.Clamping sealing mainly applies axial pressure to gland 6 by upper cover 2 Power is transferred to tarpaulin 5, and the position for contacting it with tarpaulin 5 squeezes stress, so that leakproofness be made to reach good result.

The end face that above-mentioned gland 6 is pressed on tarpaulin 5 is serrated 61.Because tarpaulin 5 is rubber material, so gland 6 be connected on tarpaulin 5 after can generate slight deformation, the end of zigzag 61 can be made to be embedded in tarpaulin 5, and zigzag 61 Structure have the effect of it is multi-layer sealed, improve leakproofness, prolong the service life.

The convex block 24 and groove 12 being mutually inserted are provided on the opposite face of above-mentioned lower case 1 and upper cover 2.Convex block 24 and recessed The setting of slot 12 has the function of positioning in the circumferential, avoids relatively rotating between upper cover 2 and lower case 1, and connection is more stable, close Envelope property is more preferable.

Above-mentioned actuator 4 includes the guide holder 41 and push rod 42 being arranged in below tarpaulin 5, and guide holder 41 is solid by screw It is scheduled in lower case 1, push rod 42 is threaded through on guide holder 41 and constitutes guiding sliding cooperation with guide holder 41, the push rod 42 The opening 21 of one end face upper cover 2 is provided with spring 43, the correspondence two sides of push rod 42 between the other end and the bottom surface of lower case 1 It is provided with movable contact spring 31, movable contact spring 31 is connected with push rod 41, is provided on the bottom surface of lower case 1 corresponding with movable contact spring 31 Static contact 32, movable contact spring 31 and static contact 32 constitute the contact 3, and movable contact spring 31 is in towards the end of static contact 32 311 Bending setting.Movable contact spring 31 is mobile towards the direction close to static contact 32 with push rod 42, when movable contact spring 31 bent end 311 with When static contact 32 contacts, the way of contact of switch conduction, switch contacts change with the binding post in lower case 1 by previous contact It is contacted for movable contact spring 31 with static contact 32, and movable contact spring 31 is oriented to, i.e., the guiding of push rod 42 and guide holder 41 cooperates, and prevents It during 31 pressing contact of stop contact, moves radially and causes switch contact bad, the material selection of movable contact spring 31 is import beryllium Copper has stronger fatigue resistance and preferable electric conductivity, mechanical life stronger, and the material of existing contact 3 is ordinary copper Material, mechanical life is poor, and in addition the material of the material and push rod 42 of lower case 1 and upper cover 2 selects the higher plastics of resistance to temperature Material ensure that the reliability switched under harsh environmental conditions, prolong the service life.

The extruding of tarpaulin 5 is sealed it by gland 6, fixture block 22 will be had again to play securely effect Upper cover 2 is anchored in lower case 1, to make switch integrated, easy to operate, practicability is very strong, largely improves this The sealing waterproofing grade of class switch guarantees that product can to reach IP6K7, while nonmetallic materials are all made of heat-resisting material It uses, is widely used in the environment of 140 DEG C, product is applicable in and requires harsher occasion.

The utility model is not limited to above-mentioned specific embodiment, and persons skilled in the art are according to the utility model public affairs The content opened can be implemented the utility model or all using the utility model using other a variety of specific embodiments Design structure and thinking, do simple change or change, both fall within the protection scope of the utility model.

Claims (7)

1. a kind of lifting switch exists including lower case, upper cover and the switch block being arranged in lower case and upper cover, feature It include contact, actuator and flexible tarpaulin in: the switch block, tarpaulin is arranged towards upper cover on upper lid After having the opening exposed for the end face of tarpaulin, the upper cover to be connected on tarpaulin and lower case constitutes clamping setting.

2. lifting switch according to claim 1, it is characterised in that: the end of the lower case towards upper cover is provided with embedding Enter the bulge loop of upper cover, the first shoulder rank and the second shoulder rank being mutually clamped are provided between the outer peripheral surface of bulge loop and the inner wall of upper cover.

3. lifting switch according to claim 2, it is characterised in that: the first shoulder rank is to be arranged on bulge loop outer peripheral surface Annular convex platform, the second shoulder rank is the fixture block being arranged on upper cover inner wall, and the end face of fixture block towards annular convex platform is inclined to set.

4. lifting switch according to claim 1 or 2 or 3, it is characterised in that: be provided between the upper cover and tarpaulin One end of gland, gland is pressed on tarpaulin, and the other end is pressed on the stop collar on the inner wall that upper cover is arranged in.

5. lifting switch according to claim 4, it is characterised in that: the gland is pressed on the end face of tarpaulin in sawtooth Shape.

6. lifting switch according to claim 2 or 3, it is characterised in that: set on the opposite face of the lower case and upper cover It is equipped with the convex block and groove being mutually inserted.

7. lifting switch described according to claim 1 or 2 or 3 or 5, it is characterised in that: the actuator includes setting anti- Guide holder and push rod below water cap, push rod are threaded through on guide holder and constitute guiding sliding cooperation, the push rod with guide holder One end face upper cover opening, spring is provided between the other end and the bottom surface of lower case, the correspondence two sides of push rod are provided with The movable contact spring to link with it, static contact corresponding with movable contact spring is provided on the bottom surface of lower case, and movable contact spring and static contact are constituted The contact, movable contact spring are arranged towards the end of static contact in bending.