CN202513070U

CN202513070U - Light switch used for fork truck

Info

Publication number: CN202513070U
Application number: CN2012201027332U
Authority: CN
Inventors: 余香琴; 楼东旭
Original assignee: Hangcha Group Co Ltd
Current assignee: Hangcha Group Co Ltd
Priority date: 2012-03-19
Filing date: 2012-03-19
Publication date: 2012-10-31
Anticipated expiration: 2022-03-19

Abstract

The utility model relates to a light switch used for a fork truck, and aims to provide the light switch used for the fork truck which is simple and novel in structure, good in contact touch, stable and reliable in work and long in service life. The technical scheme of the utility model is that the light switch used for the fork truck comprises a switch body, a bracket arranged in the switch body and a light handle of which the passive end is stretched into the bracket and is in hinge joint with the bracket, and is characterized in that a positioning device used for controlling the light handle to be positioned under the middle-position, left-turning and right-turning states separately is arranged between the bracket and the light handle, and the end part of the passive end of the light handle is equipped with a blind hole in which a spring I and a moving contact are placed orderly from inside to outside; at the same time, the bracket is equipped with a static contact board corresponding to the position of the moving contact, and a moving contact board pressed tightly and contacted with the moving contact, and being able to swing under the action of the moving contact to realize on-off with the static contact board is arranged on the static contact board. The light switch used for the fork truck of the utility model is suitable for a counter balanced forklift truck.

Description

Fork truck is used headlamp switch

Technical field

The utility model relates to a kind of fork truck and uses headlamp switch, mainly is applicable on the counterbalanced lift truck.

Background technology

At present, fork truck commonly used is made up of Gear-shift switch and headlamp switch two large divisions with unit switch, and wherein headlamp switch is mainly used in left steering and the right turn that realizes fork truck; The normal structure that adopts is to slide in fan-shaped stroke groove through hoodle, realizes and the right-hand rotation function that through the elastic spring that the contact of both sides is gone to contact both sides internal structure is complicated; Difficult installation; The distortion of two-side elastic reed is inconsistent after using the long period, causes loose contact, and the contact is prone to ablate in big current lead-through; Problems such as the life-span is short make the headlamp switch cisco unity malfunction.

Summary of the invention

The technical problem that the utility model will solve is: the problem to above-mentioned existence provides a kind of novelty simple in structure, the contact contact is good, working stability is reliable, fork truck long service life is used headlamp switch.

The technical scheme that the utility model adopted is: fork truck is used headlamp switch; Comprise Switch main body, be installed on the support in this Switch main body; And Partner stretches in the support and hinged with it light handle, it is characterized in that: be provided for controlling light handle positioning means for positioning under meta, left-hand rotation, three kinds of states of right-hand rotation respectively between said support and the light handle; The end of light handle Partner has blind hole; And place spring I and moving contact in the hole from inside to outside successively; The fixed contact plate is installed in the position corresponding to moving contact on the support simultaneously, installs on this fixed contact plate with moving contact to press the moving contact plate that contacts and can act on lower swing realization and fixed contact plate break-make at it.

Said moving contact plate is V-shaped; Its recessed surface contacts with moving contact; The middle part of projecting surface and fixed contact plate electrically contact, and respectively are shaped on a moving contact at the two ends of this projecting surface, and simultaneously fixed contact plate two ends respectively are shaped on one and match with moving contact that realization is quiet, the fixed contact of moving contact plate conducting.

Said light handle comprises handle body and the locating piece that is mutually permanently connected, and wherein locating piece integral body is positioned at internal stent, and said blind hole is positioned on the locating piece, away from the end of handle body one end.

Said positioner comprises the spring II that is arranged in the locating piece through hole; This both ends of the spring is respectively placed a hoodle; Support inner surface, every corresponding hoodle are offered an arc stroke groove simultaneously; Its radian is identical with the oscillator arc of light handle, and each hoodle embeds in the stroke groove under the effect of spring II.

Said stroke groove is by being made up of three location notchs, and the distance between adjacent two location notchs equates that under the meta state, each hoodle embeds respectively in the location notch in the middle of each stroke groove.

The moving contact plate goes to and the pairing locating piece pendulum angle of fixed contact plate conducting from the meta state, equates with the pairing locating piece pendulum angle of adjacent two location notchs.

Said support inner surface is installed two spacing block sets that are used to limit the locating piece pendulum angle.

The moving contact plate goes to and the pairing locating piece pendulum angle of fixed contact plate conducting from the meta state, and to go to the angle that is turned over when being close to spacing block set from the meta state identical with locating piece.

Said support fixedly forms by support arm is mutually nested with inner support.

The beneficial effect of the utility model is: the utility model is installed moving contact at light handle Partner through the spring I; The fixed contact plate is installed in position corresponding to moving contact on support simultaneously, and the V-type moving contact plate of seesaw type is installed on this fixed contact plate, and moving contact withstands the moving contact plate all the time under the effect of spring I; The light handle rotates during work; Utilize moving contact rotate to drive the moving contact plate around its spot wobble, realize the conducting of moving contact plate and stationary contact electroplax, the two-side elastic reed is out of shape inconsistent after having solved existing headlamp switch and using the long period; And cause the problem of loose contact, prolonged the useful life of switch greatly; In addition, the utility model is simple in structure, easy for installation.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is that the A-A of Fig. 1 is to cutaway view.

Fig. 3, Fig. 4, Fig. 5 are that the utility model is in the structure chart under meta, left-hand rotation, the right-hand rotation state respectively.

Embodiment

Like Fig. 1-shown in Figure 2, present embodiment comprises Switch main body 1, is installed on the support 2 in this Switch main body, and Partner stretches into the light handle 3 in the support 2, and said light handle 3 is hinged through alignment pin 11 and support 2.Said support 2 comprises support arm 2-2 and is close to this support arm inner surface and is embedded in the inner support 2-3 in it, and connects through screw between the two.Light handle 3 comprises handle body 3-1 and the locating piece 3-2 that is mutually permanently connected; Handle body 3-1 stretches in the locating piece 3-2 and with it and is fixedly connected in this example, and alignment pin 11 passes support arm 2-2, inner support 2-3, handle body 3-1 and locating piece 3-2 simultaneously and realizes the hinged of support 2 and light handle 3; Said locating piece 3-2 integral body is positioned at inner support 2-3; Offer blind hole away from the end of handle body 3-1 one end (Partner of whole light handle) on it; Place spring I 4 and moving contact 5 in the hole from inside to outside successively; Inner support 2-3 goes up corresponding to the position of moving contact 5 fixed contact plate 6 (these fixed contact plate two ends respectively are shaped on a fixed contact) is installed simultaneously; Install on this fixed contact plate and be complementary with it and roughly V-shaped moving

contact plate

7,4 effects of spring I down the recessed surface of moving contact plate 7 press with moving contact 5 and contact, the middle part of projecting surface contact with fixed contact plate 6 (conduct electricity and contact); And respectively be shaped on a moving contact at the two ends of this projecting surface; Utilize the thrust of 5 pairs of moving contact plates 7 of moving contact to drive moving contact plate 7 when turning to, realize the conducting of fixed contact plate 6 and moving contact plate 7 through being in contact with one another of moving contact and fixed contact, thereby turn to about realizing around its fulcrum (contact point of moving contact plate and fixed contact plate) swing.

Offer two through holes that are parallel to alignment pin 11 axis on the said locating piece 3-2; Spring II 8 of all coaxial placement in each hole; This both ends of the spring is respectively placed a hoodle 9; Simultaneously inner support 2-3 inner surface, every corresponding hoodle 9 are offered an arc stroke groove 2-1 (the stroke groove has four in this example, and pairing two the stroke grooves of two hoodles that are positioned at same spring II two ends are positioned at same vertical plane), and its radian is identical with the oscillator arc of light handle 3; Each hoodle 9 embeds in the stroke groove 2-1 under 8 effects of spring II, to realize the location of light handle 3 under meta, left-hand rotation, three kinds of different conditions of right-hand rotation.In this example, said stroke groove 2-1 is made up of three location notchs, and the distance between adjacent two location notchs equates that the pairing locating piece 3-2 of promptly adjacent two location notchs pendulum angle equates.As shown in Figure 3, under the meta state (no steering state), each hoodle 9 embeds respectively in the location notch in the middle of the stroke groove 2-1; Like Fig. 4, shown in Figure 5, under left steering or the right turn state, each hoodle 9 turns an angle along a certain direction with locating piece 3-2, and the embedding location notch interior location of realizing this state under adjacent with the interfix groove; Simultaneously, moving contact plate 7 is at moving contact 5 effect lower swings, make moving contact plate 7 a moving contact just with fixed contact plate 6 on corresponding fixed contact contact, realize both mutual conduction.

Rotational angle is excessive in order to prevent to turn left or to turn right; Moving contact 5 skids off in the blind hole of locating piece 3-2 front end; This example on the inner surface of inner support 2-3, install two spacing block sets 10 realize spacing, in this example, from the meta state to left steering or the pairing locating piece 3-2 pendulum angle of right turn state when contacting (be aforementioned fixed contact) with moving contact; To go to the angle that is turned over when being close to spacing block set 10 from the meta state identical with locating piece 3-2; Be that locating piece 3-2 is close to spacing block set 10 under left steering or the right turn state, the location of realizing left steering or the required angle of right turn with positioner.

The operation principle of present embodiment is following: set all directions in this example all with reference to the direction of Fig. 1, promptly be perpendicular to Fig. 1 forward and belong to plane direction inwardly, promptly be perpendicular to Fig. 1 backward and belong to plane direction outwardly.

From the meta state to left steering; Promote light handle 3 forward, handle body 3-1 and locating piece 3-2 are rotated around alignment pin 11 together, hoodle 9 slides in stroke groove 2-1 simultaneously; Moving contact 5 rotates with locating piece 3-2, utilizes moving contact 5 to drive the swing of moving contact plate; When locating piece angle that 3-2 turns over makes hoodle 9 when the location notch of centre slides in the adjacent with it location notch; Locating piece 3-2 just is close to one of them spacing block set 10; Simultaneously a moving contact of moving contact plate 7 just with fixed contact plate 6 on corresponding fixed contact contact; Make both conductings, thereby realize.

, promote light handle 3 backward and get final product to right turn from the meta state, its principle is identical with left steering.

Claims

1. a fork truck is used headlamp switch; Comprise Switch main body (1), be installed on the support (2) in this Switch main body; And Partner stretches in the support (2) and hinged with it light handle (3), it is characterized in that: be provided for controlling light handle (3) positioning means for positioning under meta, left-hand rotation, three kinds of states of right-hand rotation respectively between said support (2) and the light handle (3); The end of light handle (3) Partner has blind hole; And place spring I (4) and moving contact (5) in the hole from inside to outside successively; While support (2) is gone up corresponding to the position of moving contact (5) fixed contact plate (6) is installed, and installs on this fixed contact plate with moving contact (5) to press the moving contact plate (7) that contacts and can act on lower swing realization and fixed contact plate (6) break-make at it.

2. fork truck according to claim 1 is used headlamp switch; It is characterized in that: said moving contact plate (7) is V-shaped; Its recessed surface contacts with moving contact (5); The middle part of projecting surface and fixed contact plate (6) electrically contact, and respectively are shaped on a moving contact at the two ends of this projecting surface, and simultaneously fixed contact plate (6) two ends respectively are shaped on one and match with moving contact that realization is quiet, the fixed contact of moving contact plate (6,7) conducting.

3. fork truck according to claim 1 and 2 is used headlamp switch; It is characterized in that: said light handle (3) comprises handle body (3-1) and the locating piece (3-2) that is mutually permanently connected; Wherein locating piece (3-2) integral body is positioned at support (2) inside, said blind hole be positioned at locating piece (3-2) go up, away from the end of handle body (3-1) end.

4. fork truck according to claim 3 is used headlamp switch; It is characterized in that: said positioner comprises the spring II (8) that is arranged in locating piece (3-2) through hole; This both ends of the spring is respectively placed a hoodle (9); Support (2) inner surface, every corresponding hoodle (9) are offered an arc stroke groove (2-1) simultaneously, and its radian is identical with the oscillator arc of light handle (3), and each hoodle (9) embeds in the stroke groove (2-1) under spring II (8) effect.

5. fork truck according to claim 4 is used headlamp switch; It is characterized in that: said stroke groove is made up of three location notchs (2-1); And the distance between adjacent two location notchs equates that under the meta state, each hoodle (9) embeds respectively in the location notch in the middle of each stroke groove (2-1).

6. fork truck according to claim 5 is used headlamp switch; It is characterized in that: moving contact plate (7) goes to and the pairing locating piece of fixed contact plate (6) conducting (3-2) pendulum angle from the meta state, equates with the pairing locating pieces of adjacent two location notchs (3-2) pendulum angle.

7. fork truck according to claim 3 is used headlamp switch, it is characterized in that: said support (2) inner surface is installed two spacing block sets (10) that are used to limit locating piece (3-2) pendulum angle.

8. fork truck according to claim 7 is used headlamp switch; It is characterized in that: moving contact plate (7) goes to and the pairing locating piece of fixed contact plate (6) conducting (3-2) pendulum angle from the meta state, and to go to the angle that is turned over when being close to spacing block set (10) from the meta state identical with locating piece (3-2).

9. fork truck according to claim 1 and 2 is used headlamp switch, it is characterized in that: said support (2) is fixedly formed with inner support (2-3) is mutually nested by support arm (2-2).