CN111137816B

CN111137816B - Handle for forklift

Info

Publication number: CN111137816B
Application number: CN201911384391.0A
Authority: CN
Inventors: 翁武滨; 李奇江; 徐晶
Original assignee: Yuyao Ruimate Electric Appliance Co ltd
Current assignee: Yuyao Ruimate Electric Appliance Co ltd
Priority date: 2019-12-28
Filing date: 2019-12-28
Publication date: 2021-05-11
Anticipated expiration: 2039-12-28
Also published as: CN111137816A

Abstract

The invention relates to a handle for a forklift, which relates to the technical field of electric forklifts, and the technical scheme of the handle for the forklift is characterized in that the handle comprises a shell, the shell comprises an upper cover and a lower cover, and the upper cover and the lower cover are fixed through a locking bolt, and the handle is characterized in that: an installation cavity is formed in front of the upper cover and the lower cover, an adjusting driving mechanism is installed in the installation cavity, the adjusting driving mechanism comprises a rotating shaft, an installation seat fixed in the installation cavity and a circuit board fixed on the installation seat, a fixing port is formed in the circuit board, an adjuster penetrating through the circuit board is installed at the fixing port, and a Hall element is installed on the adjuster; the rotating shaft is sleeved with a touch part, a magnetic block for touching the Hall element is arranged in the touch part, the rotating shaft and the touch part are relatively fixed, and the end part of the rotating shaft is symmetrically provided with a rotating knob relatively fixed with the rotating shaft. The invention has the effect of facilitating the removal of the electronic control device from the handle.

Description

Handle for forklift

Technical Field

The invention relates to the technical field of electric forklifts, in particular to a handle for a forklift.

Background

The electric carrier is a tool vehicle commonly used in mechanical transportation at present, can carry equipment efficiently and laborsavingly, and generally has a control handle, mainly satisfies basic service functions such as electric carrier's walking, lift.

The utility model with the authorization notice number of CN208150893U discloses an electric carrier and a handle head thereof, which comprises a first body and a second body, wherein the lower end of the first body is in inserted fit with a handle pipe, and the middle part of the first body is fixed with an electric connecting seat; the second body comprises a mounting bracket, a control circuit board is mounted on the mounting bracket, and a contact pin connecting seat is fixed at the bottom of the mounting bracket; the first body and the second body are respectively provided with a positioning guide post and a positioning seat which are mutually spliced and matched, and the joint of the positioning guide post and the positioning seat is connected with the first body and the second body through a fastening piece.

Above-mentioned electric truck and electronic control device in the handle head take place to damage, when needing the staff to maintain it, and electronic control device is difficult to demolish from the handle, and is very inconvenient.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a handle for a forklift, which has the effect of facilitating the electronic control device to be detached from the handle.

The technical purpose of the invention is realized by the following technical scheme:

a handle for a forklift comprises a shell, wherein the shell comprises an upper cover and a lower cover, the upper cover and the lower cover are fixed through a locking bolt, a mounting cavity is formed in front of the upper cover and the lower cover, an adjusting driving mechanism is mounted in the mounting cavity, the adjusting driving mechanism comprises a rotating shaft, a mounting seat fixed in the mounting cavity and a circuit board fixed on the mounting seat, a fixing port is formed in the circuit board, an adjuster penetrating through the circuit board is mounted at the fixing port, and a Hall element is mounted on the adjuster; the rotating shaft is sleeved with a touch part, a magnetic block for touching the Hall element is installed in the touch part, the rotating shaft and the touch part are relatively fixed, and the end part of the rotating shaft is symmetrically provided with a rotating knob relatively fixed with the rotating shaft.

By adopting the technical scheme, the upper cover and the lower cover tightly press the adjusting driving mechanism at the mounting cavity, so that the adjusting driving mechanism is quickly mounted at the shell, and when the adjusting driving mechanism is damaged, the upper cover and the lower cover are separated, so that the adjusting driving mechanism is quickly dismounted at the shell; when the rotating shaft rotates, the touch part fixed relative to the rotating shaft starts to rotate, and the magnetic block on the touch part touches the Hall element on the regulator, so that the normal regulation of the handle head on the speed is realized.

The invention is further set that a reset mechanism is arranged between the adjusting drive mechanism and the rotary knob, the reset mechanism comprises a reset plate arranged at the position of the shell, a reset torsion spring arranged on the reset plate and a clamping piece on the rotary knob, one side of the reset plate, which faces the rotary knob, is provided with an installation sleeve, the reset plate is provided with an arc-shaped piece at the top of the installation sleeve, the reset torsion spring is sleeved on the installation sleeve, and two ends of the reset torsion spring are respectively abutted against two sides of the arc-shaped piece; the rotary knob is arranged in the rotating shaft, and the two sides of the clamping piece are respectively abutted against the two ends of the reset torsion spring.

By adopting the technical scheme, the rotating knob is rotated and the rotating shaft is driven, so that the touch of the touch part on the adjusting part is realized; the arrangement of the mounting sleeve and the arc-shaped sheet on the reset plate fixes the position of the reset torsion spring at the mounting sleeve; rotatory knob is when rotatory, and the both sides of arc piece make the knob rotatory with the both ends butt of reset torsion spring respectively, and rotatory knob drives the tip rotation of reset torsion spring for the tip of reset torsion spring drives the reseing of rotatory back card, thereby has realized the reseing of rotatory knob.

The invention is further provided that the upper cover is provided with a first mounting opening, the lower cover is provided with a second mounting opening, and the first mounting opening and the second mounting opening are provided with mounting bayonets for clamping the reset plate on the shell.

Through adopting above-mentioned technical scheme, the installation bayonet socket that supplies the board installation that resets that first installing port and second installing port formed makes the connection more stable in regulation actuating mechanism and installs in casing department, has also increased the leakproofness of installation cavity department simultaneously, has reduced the probability that magazines such as dust got into the installation cavity.

The invention is further provided that the two sides of the side wall of the reset plate facing the rotary knob are respectively provided with a limiting sheet for limiting the rotation angle of the rotating shaft.

Through adopting above-mentioned technical scheme, the rotation angle of rotatory knob has been injectd in setting up of spacing piece, has reduced the too big probability that leads to the reset torsion spring to take place to damage of rotation angle.

The invention is further set up in that the reset plate is provided with a first shaft sleeve at the mounting sleeve, one side of the first shaft sleeve facing the rotary knob is provided with a mounting flange, the diameter of the cross section of the mounting flange is larger than that of the cross section of the reset torsion spring, and when the first shaft sleeve is mounted on the mounting sleeve, the rotary knob presses the first shaft sleeve at the mounting sleeve; the rotary knob is provided with an insertion part inserted into the first shaft sleeve on one side facing the mounting sleeve.

Through adopting above-mentioned technical scheme, setting up of first axle sleeve makes the pivot more smooth and easy when rotatory, and the turn-ups of installation sets up when making the pivot install first axle sleeve department in the pivot, and the installation turn-ups compresses tightly reset spring in installation cover department to reset spring from the probability that the installation cover drops has been reduced.

The invention further provides that the mounting seat comprises a first shell and a second shell, and the circuit board is arranged between the first shell and the second shell;

at least two convex blocks are arranged on the outer side wall of the regulator at intervals in the circumferential direction, and mounting slot holes for mounting the Hall elements are formed in the convex blocks;

the regulator is provided with at least one first fixture block on one side facing the circuit board, an inclined plane is formed on one side, away from the regulator, of the first fixture block, and a first clamping groove for the first fixture block to be clamped into is formed in the position, corresponding to the first fixture block, of the circuit board;

the regulator is provided with a small-diameter section at one side far away from the first shell, the small-diameter section is inserted into the circuit board, the small-diameter section is provided with a first limiting part at a position corresponding to the first clamping groove, and the circuit board is provided with a first limiting groove for the first limiting block to be clamped in at a position corresponding to the first limiting part;

the small-diameter section is provided with a first limiting strip at the position abutted to the circuit board, and the circuit board is provided with a second limiting groove for the first limiting strip to insert into at the position corresponding to the first limiting strip;

the inner side wall of the small-diameter section is in a step shape, the diameter of the small-diameter section is reduced towards the second shell along the first shell, a first limiting ring is mounted on the inner side wall of the small-diameter section, the outer side wall and the inner side wall of the first limiting ring are in the step shape, and the diameter of the small-diameter section is reduced towards the second shell along the first shell;

the touch piece penetrates through the circuit board, an installation ring groove for installing the magnetic block is formed in the end face of the touch piece in the circumferential direction facing the circuit board, a limiting groove is formed in one side, close to the rotating shaft, of the touch piece in the installation ring groove along the length direction of the touch piece, and a limiting convex edge is arranged at the position, corresponding to the limiting groove, of the magnetic block;

the touch piece is in the mounting ring groove is close to the tip of circuit board has seted up the path section, the inside wall of first spacing ring has the cover and locates the inner ring of path section.

Clamping rings opposite to the regulator are mounted on the first shell and the second shell, at least one third limiting groove is formed in the first shell and the second shell in the circumferential direction of the corresponding clamping ring, third limiting blocks corresponding to the third limiting grooves in a one-to-one mode are arranged on the outer side walls of the clamping rings, a clamping portion is arranged on one side, facing the circuit board, of each clamping ring, and the diameter of each clamping portion is larger than that of each clamping ring;

a second shaft sleeve is arranged on the inner side wall of the clamping ring of the second shell, an abutting ring is arranged on one side of the second shell facing the circuit board, one end of the abutting ring abuts against the clamping ring, the other end of the abutting ring abuts against the touch piece, and the second shaft sleeve is arranged on the rotating shaft in a sleeved mode and inserted into the clamping ring;

the trip part is provided with a shaft coupling part inserted into the clamping ring on one side facing the first shell; and a third shaft sleeve is arranged on the touch piece, one end of the third shaft sleeve is abutted against the regulator, and the other end of the third shaft sleeve is abutted against the clamping ring close to the first shell.

Through adopting above-mentioned technical scheme, the setting up of first casing and second casing makes the circuit board install more stable in mount pad department, has reduced the probability that the circuit board drops from mount pad department.

The arrangement of the convex blocks on the outer side wall of the regulator realizes the installation of the Hall element and the normal work of the regulator, and meanwhile, the arrangement of the convex blocks also fixes the installation position of the Hall element, so that the working accuracy of the regulator is guaranteed.

The first clamping block card on the regulator is clamped into the first clamping groove on the circuit board, so that the quick installation of the regulator on the circuit board is realized, the arrangement of the inclined plane on the first clamping block enables the regulator to be more convenient to install on the circuit board, and the installation difficulty of the regulator on the circuit board is reduced.

The small-diameter section is inserted into the circuit board, the first limiting plate on the small-diameter section is clamped into the first limiting groove on the circuit board, the rotating probability of the regulator at the circuit board is reduced, and the stability between the regulator and the circuit board is improved.

The setting of first spacing on the path section has realized regulator and path section intercommunication simultaneously, and first spacing advances one to have reduced the regulator and take place rotatory probability in circuit board department into the second spacing inslot.

The small-diameter section inner side wall is in a step shape, the probability that the first limiting ring falls from the small-diameter section when being installed in the adjuster is reduced, the arrangement of the first limiting ring between the adjuster and the touch piece supports the touch piece, meanwhile, the probability that the small-diameter section is abutted to the touch piece is also reduced, and the probability that the touch piece and the adjuster rotate relatively is reduced, so that abrasion is generated.

The touch piece penetrates through the circuit board, so that the touch piece is abutted against the second shaft sleeve on the end face far away from the first shell, and the probability of abrasion of the adjuster caused by the abutment of the second shaft sleeve and the adjuster is reduced.

The arrangement of the mounting ring groove on the touch piece realizes the mounting of the magnetic block on the touch piece, and meanwhile, the mounting position of the magnetic block at the touch piece is fixed by the matching of the mounting ring groove on the touch piece and the limiting convex edge on the magnetic block.

The arrangement of two clamping rings makes the touch piece installation compacter in the mount pad, and two clamping rings will touch the piece and compress tightly in the mount pad, have reduced the probability that the touch piece rocked in the mount pad.

The setting of second axle sleeve and third axle sleeve has reduced the probability of regulator and two clamp rings butts, has reduced the probability that butt ring and regulator take place relative rotation wearing and tearing.

The arrangement of the shaft connecting part enables the clamping ring and the touch piece to rotate relatively more smoothly.

The invention is further provided that the first shell is circumferentially provided with an outer ring groove at one side facing the second shell, and the second shell is circumferentially provided with an inner ring groove at one side facing the first shell, wherein the end part of the second shell is clamped in.

Through adopting above-mentioned technical scheme, first casing is just right with the second casing when the cooperation of outer annular groove and inner ring groove makes between first casing and the second casing butt for it is more convenient when the screw runs through first casing and second casing, has reduced the installation degree of difficulty between first casing and the second casing.

The invention is further arranged in such a way that a first microswitch and a second microswitch are arranged on one side of the circuit board facing the upper cover, a third microswitch is arranged on one side of the circuit board facing the lower cover, the first microswitch, the second microswitch and the third microswitch all extend out of the mounting base, and starting buttons are arranged on the upper cover at positions corresponding to the first microswitch and the second microswitch.

Through adopting above-mentioned technical scheme, a plurality of micro-gap switches all install the availability factor that has increased the circuit board in casing department on the circuit board, have reduced micro-gap switch shared volume in the casing, and a plurality of micro-gap switches all stretch out the mount pad and have realized rather than corresponding start button's butt to make things convenient for the staff to press start button rather than corresponding micro-gap switch's triggering.

The invention is further arranged in that the shell comprises a front part and a rear part, the adjusting driving device is arranged at the rear part, an emergency stop mechanism is arranged at one end of the rear part far away from the front part, the emergency stop mechanism comprises an end cover hinged to the upper cover and a fourth micro switch arranged on the circuit board, the fourth micro switch extends out of the mounting seat, and a fourth butting block is arranged at the position of the end cover corresponding to the fourth micro switch; the end cover is provided with an insert block at one side facing the fourth microswitch, the top of the insert block is provided with a second clamping block, the lower cover is provided with a second clamping groove for the insert block to insert at a position corresponding to the insert block, and the second clamping block is clamped at the upper cover.

Through adopting above-mentioned technical scheme, when fork truck backed up and the staff did not back up, urgent detent mechanism touched the staff and made fork truck carry out the locking, installation hidden danger when having reduced fork truck use, the inserted block that the end cover articulated in upper cover and end cover kept away from its articulated end cover department inserted second draw-in groove department to make second fixture block card in upper cover department, realized the installation of end cover in casing department, thereby realized urgent detent mechanism's normal use.

The invention is further set up in that one side of the upper cover facing the end cover is provided with at least one fixed groove, the bottom surface of the upper cover at the fixed groove is provided with a first spring seat and a fourth return spring is arranged on the first spring seat, the end cover is provided with a second spring seat opposite to the first spring seat, and one end of the return spring far away from the first spring seat is inserted into the second spring seat.

Through adopting above-mentioned technical scheme, fourth reset spring's both ends respectively with first spring holder and second spring holder butt with the end cover to keeping away from the rear portion direction extrusion to emergency stop mechanism mistake probability of touching has been reduced.

In conclusion, the invention has the following beneficial effects:

1. a handle for a forklift comprises a shell, wherein the shell comprises an upper cover and a lower cover, the upper cover and the lower cover tightly press an adjusting driving mechanism at an installation cavity to realize the quick installation of the adjusting driving mechanism at the shell, and when the adjusting driving mechanism is damaged, the upper cover and the lower cover are separated to realize the quick disassembly of the adjusting driving mechanism at the shell;

2. the setting of first axle sleeve makes the pivot more smooth and easy when rotatory, and the turn-ups of installation sets up when making the pivot install first axle sleeve department in the pivot, and the turn-ups of installation compresses tightly reset spring in installation cover department to the probability that reset spring drops from installation cover department has been reduced

3. When the forklift backs and the working personnel do not back, the emergency stop mechanism touches the working personnel to stop the forklift, so that the mounting hidden danger of the forklift during use is reduced, the end cover is hinged to the upper cover, the end cover is far away from the insert block at the position of the hinged end cover, the insert block is inserted into the second clamping groove, the second clamping block is clamped at the position of the upper cover, the mounting of the end cover at the position of the shell is realized, and the normal use of the emergency stop mechanism is realized.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of an exploded structure of the housing;

FIG. 3 is a schematic view of the structure at the installation cavity;

FIG. 4 is a schematic view of the overall structure of the adjustment drive mechanism;

FIG. 5 is an exploded view of the adjustment drive mechanism;

FIG. 6 is a schematic diagram of an exploded configuration of the regulator at the circuit board;

FIG. 7 is an enlarged partial schematic view of portion A of FIG. 6;

FIG. 8 is a schematic sectional view at the adjustment drive mechanism;

FIG. 9 is a schematic illustration of an exploded configuration at the trip member;

fig. 10 is an exploded view of the reset mechanism;

FIG. 11 is a schematic view of a rotary knob;

FIG. 12 is a schematic view of a circuit board configuration;

FIG. 13 is a schematic view of an exploded structure at the upper cover;

FIG. 14 is a schematic view of an exploded structure at the lower cover;

fig. 15 is a schematic structural view of the upper cover at the first hinge seat;

fig. 16 is a schematic view of the structure of the lower cover at the third hinge base;

FIG. 17 is a schematic illustration of an exploded structure at the rear;

fig. 18 is a structural illustration of an end cap.

In the figure, 1, a housing; 11. an upper cover; 111. a first mounting port; 112. fixing grooves; 113. a fourth spring seat; 114. a fourth return spring; 12. a lower cover; 121. a second mounting opening; 122. a second card slot; 13. installing a cavity; 14. mounting blocks; 141. installing a clamping groove; 15. a front portion; 16. a rear portion; 17. installing a bayonet; 2. adjusting the driving mechanism; 21. a rotating shaft; 22. a mounting seat; 221. a socket; 222. a first housing; 2221. an outer ring groove; 223. a second housing; 2231. an inner ring groove; 2232. a second shaft sleeve; 2233. a butting ring; 224. a third limiting groove; 23. a clamping ring; 231. a third limiting block; 232. a clamping portion; 24. a circuit board; 241. a fixed port; 242. a first card slot; 243. a first limit groove; 244. a second limit groove; 245. a first microswitch; 246. a second microswitch; 247. a third microswitch; 248. a fourth microswitch; 249. an elastic sheet; 25. a regulator; 251. a bump; 2511. mounting a slotted hole; 2512. a Hall element; 252. a first clamping block; 2521. a bevel; 2522. a first limiting part; 2523. a limiting strip; 253. a first limit ring; 26. a touch piece; 261. mounting a ring groove; 2611. a limiting groove; 262. a magnetic block; 2621. a limiting convex rib; 263. a shaft coupling part; 264. a third shaft sleeve; 3. rotating the knob; 31. a card; 32. a plug-in part; 4. a reset plate; 41. a return torsion spring; 42. installing a sleeve; 421. a first bushing; 4211. installing a flanging; 43. an arc-shaped sheet; 44. a limiting sheet; 5. a first start button; 51. a first hinge mount; 52. a first reset button; 521. a hinge portion; 522. a first button plate; 523. a first spring seat; 53. a first return spring; 6. a second start button; 61. a second hinge mount; 62. a second reset button; 63. a second return spring; 64. a second spring seat; 7. a third start button; 71. a third hinge mount; 72. a third reset button; 721. mounting a bar; 722. mounting a clamping block; 73. a third return spring; 74. a third spring seat; 8. an end cap; 81. inserting a block; 811. a second fixture block; 812. a fifth spring seat.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the handle for a forklift disclosed by the invention comprises a housing 1, an adjusting driving mechanism 2 and rotary knobs 3 arranged at two ends of the adjusting driving mechanism 2, wherein the housing 1 comprises an upper cover 11 and a lower cover 12, the upper cover 11 and the lower cover 12 are fixed through locking bolts, and the adjusting driving mechanism 2 is arranged between the upper cover 11 and the lower cover 12.

Referring to fig. 2 and 3, an installation cavity 13 for installing the adjustment driving mechanism 2 is formed between the upper cover 11 and the lower cover 12, a plurality of installation blocks 14 are respectively arranged at the upper cover 11 and the lower cover 12, an installation clamping groove 141 is formed between every two installation blocks 14, and when the adjustment driving mechanism 2 is installed in the installation cavity 13, the edge of the adjustment driving mechanism 2 is clamped in the installation clamping groove 141.

Referring to fig. 1 and 3, the housing 1 includes a front portion 15 and a rear portion 16, the adjustment driving device is disposed at the rear portion 16, first mounting openings 111 are formed at two sides of the upper housing at the adjustment driving device, a second mounting opening 121 opposite to the first mounting opening 111 is formed on the lower cover 12, and mounting bayonets 17 are formed at the first mounting opening 111 and the second mounting opening 121.

Referring to fig. 4 and 5, the adjustment driving mechanism 2 includes a rotating shaft 21, a mounting seat 22, and a circuit board 24 fixed to the mounting seat 22, the mounting seat 22 is provided with a socket 221, the mounting seat 22 includes a first casing 222 and a second casing 223, the first casing 222 is provided with an outer annular groove 2221 in a circumferential direction of a side facing the second casing 223, and the second casing 223 is provided with an inner annular groove 2231 in a circumferential direction of a side facing the first casing 222, into which an end of the second casing 223 is inserted. The first housing 222 and the second housing 223 are fixedly connected by a locking bolt, and the circuit board 24 is mounted between the first housing 222 and the second housing 223. The cooperation of the inner annular groove 2231 and the outer annular groove 2221 facilitates the securing of the locking bolt at the mount 22.

Referring to fig. 5, the first housing 222 and the second housing 223 are respectively provided with a clamping ring 23 facing the adjuster 25, the first housing 222 and the second housing 223 are circumferentially provided with at least one third limiting groove 224 corresponding to the clamping ring 23, the outer side wall of the clamping ring 23 is provided with third limiting blocks 231 corresponding to the third limiting grooves 224 one by one, the clamping ring 23 is provided with a clamping portion 232 on the side facing the circuit board 24, and the diameter of the clamping portion 232 is larger than that of the clamping ring 23.

Referring to fig. 5, the second housing 223 is provided with a second sleeve 2232 at an inner side wall of the clamp ring 23, the second sleeve 2232 has an abutting ring 2233 at a side facing the circuit board 24, an end of the abutting ring 2233 away from the circuit board 24 abuts against the clamp ring 23, and the second sleeve 2232 is sleeved on the rotating shaft 21 and inserted into the clamp ring 23.

Referring to fig. 6 and 7, the circuit board 24 is provided with a fixing opening 241, the fixing opening 241 is provided with an adjuster 25 penetrating through the circuit board 24, the outer side wall of the adjuster 25 is circumferentially provided with at least two projections 251 at intervals, the projections 251 are provided with mounting slots 2511, and hall elements 2512 are mounted in the mounting slots 2511; the adjuster 25 has at least one first latch 252 on a side facing the circuit board 24, an inclined surface 2521 is formed on a side of the first latch 252 away from the adjuster 25, and a first slot 242 into which the first latch 252 is inserted is formed in a position of the circuit board 24 corresponding to the first latch 252.

Referring to fig. 6, the adjuster 25 has a small diameter section on a side away from the first housing 222, the small diameter section of the adjuster 25 is inserted into the circuit board 24, the small diameter section of the adjuster 25 has a first limiting portion 2522 at a position corresponding to the first slot 242, and the circuit board 24 has a first limiting groove 243 at a position corresponding to the first limiting portion 2522 for the first limiting portion 2522 to be inserted into. The small diameter section has a limiting bar 2523 at a position abutting against the circuit board 24, and the circuit board 24 is provided with a second limiting groove 244 for inserting the limiting bar 2523 at a position corresponding to the first limiting bar 2523.

Referring to fig. 8, the inner sidewall of the small diameter section of the regulator 25 is stepped, the diameter of the small diameter section decreases toward the second housing 223 along the first housing 222, the first stopper ring 253 is installed on the inner sidewall of the small diameter section, both the outer sidewall and the inner sidewall of the first stopper ring 253 are stepped, and the diameter of the small diameter section decreases toward the second housing 223 along the first housing 222.

Referring to fig. 6 and 8, the insertion hole 221 of the mount 22 is aligned with the fixing hole 241, and the mount 22 is provided with the trip 26 penetrating the mount 22 at the insertion hole 221.

Referring to fig. 8 and 9, the touching member 26 has an installation ring groove 261 in the circumferential direction of the end surface facing the circuit board 24, the touching member 26 has a limit groove 2611 in the length direction of the touching member 26 at one side of the installation ring groove 261 close to the rotating shaft 21, the touching member 26 has a magnetic block 262 mounted at the limit groove 2611, and the magnetic block 262 has a limit protrusion 2621 engaged with the limit groove 2611.

Referring to fig. 8 and 9, the trip member 26 has a small diameter section at an end of the mounting ring groove 261 close to the circuit board 24, and the inner sidewall of the first limiting ring 253 has an inner ring sleeved on the small diameter section of the trip member 26. The trip 26 has an axial connection 263 on the side facing the first housing 222, into which the clamping ring 23 is inserted; the trigger 26 is provided with a third shaft sleeve 264, one end of the third shaft sleeve 264 abuts against the regulator 25, and the other end abuts against the clamp ring 23 near the first housing 222.

Referring to fig. 10 and 11, a reset mechanism is installed between the adjustment driving mechanism 2 and the rotation knob 3, and includes a reset plate 4 installed to the housing 1 by a locking bolt, a reset torsion spring 41 installed to the reset plate 4, and a catching piece 31 on the rotation knob 3.

Referring to fig. 3 and 10, the reset plate 4 is clamped in the mounting bayonet 17, the reset plate 4 has a mounting sleeve 42 and an arc-shaped piece 43 on one side facing the rotation knob 3, the mounting sleeve 42 is provided with a first shaft sleeve 421 on one end facing the rotation knob 3, the first shaft sleeve 421 has a mounting flange 4211 on one side far away from the reset plate 4, and the diameter of the cross section of the mounting flange 4211 is larger than that of the cross section of the reset torsion spring 41. The reset plate 4 is provided with limiting pieces 44 on both sides of the end surface where the mounting sleeve 42 is located.

Referring to fig. 10 and 11, the rotation knob 3 has a socket 32 fixed opposite to the rotation shaft 21 on a side facing the reset plate 4, the rotation shaft 21 penetrates the socket 32 and is inserted into the shaft sleeve, and the rotation knob 3 presses the first shaft sleeve 421 against the mounting sleeve 42. The locking piece 31 is provided on the side of the rotation knob 3 facing the reset plate 4.

Referring to fig. 10 and 11, when the reset torsion spring 41 is installed on the installation sleeve 42, the two sides of the arc-shaped piece 43 are respectively abutted to the two ends of the reset torsion spring 41, the rotary knob 3 compresses the shaft sleeve at the installation sleeve 42, the installation flange 4211 limits the reset torsion spring 41 at the installation sleeve 42, and the probability that the reset torsion spring 41 falls off from the installation sleeve 42 is reduced.

Referring to fig. 10 and 11, when the rotary knob 3 rotates, the card 31 drives one end of the reset torsion spring 41 to rotate around the rotating shaft 21, and the arrangement of the limiting piece 44 reduces the rotation angle of the reset torsion spring 41 and reduces the probability of damage to the reset torsion spring 41.

Referring to fig. 2 and 12, the circuit board 24 is provided with a first microswitch 245 having a horn function at a side facing the upper cover 11 and close to the front portion 15; the circuit board 24 is provided with a second microswitch 246 for a turtle speed function on a side facing the upper cover 11 and close to the rear portion 16.

Referring to fig. 2 and 12, the circuit board 24 is provided with a third micro switch 247 having an upright traveling function at a side facing the lower cover 12; the circuit board 24 is provided with a fourth microswitch 248 at the end remote from the front mould which activates the emergency stop mechanism. The circuit board 24 has an elastic piece 249 at each of the first microswitch 245, the second microswitch 246 and the third microswitch 247. A plurality of resilient tabs 249 each extend beyond the mounting block 22.

Referring to fig. 12 and 14, the housing 1 is provided with activation buttons, which are a first activation button 5 activating the first microswitch 245, a second activation button 6 activating the second microswitch 246 and a third activation button 7 activating the third microswitch 247, respectively.

Referring to fig. 13, 14 and 15, the first start button 5 includes two first hinge seats 51 symmetrically fixed on the end surface of the upper cover 11 facing the lower cover 12, a first reset button 52 hinged to the first hinge seats 51, and a first reset spring 53, the first reset button 52 includes a hinge portion 521, a first button plate 522 located on one side of the hinge portion 521, and a first spring seat 523 located on the other side of the hinge portion 521, one end of the first button plate 522 away from the hinge portion 521 is clamped at the upper cover 11, and the first reset spring 53 is mounted on the first spring seat 523, and one end of the first reset spring 53 away from the first spring seat 523 abuts against the upper cover 11.

Referring to fig. 13, 14 and 15, the second start button 6 includes a second hinge seat 61 fixed on the end surface of the upper cover 11 facing the lower cover 12, a second return button 62 hinged to the second hinge seat 61, and a second return spring 63 mounted on the upper cover 11, and a second spring seat 64 for mounting the second return spring 63 is provided on the top of the upper cover 11; the second start button 6 is clamped at the upper cover 11 at one end far away from the hinge seat 61.

Referring to fig. 14, 15 and 16, the third actuating button 7 includes a third hinge base 71 fixed to an end surface of the lower cover 12 facing the upper cover 11, a third return button 72 hinged to the third hinge base 71, and a third return spring 73 mounted to the lower cover 12, and a third spring seat 74 on which the third return spring 73 is mounted is provided on a bottom surface of the lower cover 12. The lower cover 12 has a third spring seat 74 to which the third return spring 73 is attached, and when the third return spring 73 is attached to the third spring seat 74, the third return spring 73 abuts against the third return button 72.

Referring to fig. 14, the third reset button 72 has a mounting bar 721 penetrating the lower cover 12 at a side facing the upper cover 11, and the mounting bar 721 has a mounting latch 722 latched at the lower cover 12.

Referring to fig. 17 and 18, the emergency stop mechanism includes an end cap 8 hinged to the rear portion 16. The end cap 8 has an insertion block 81 on a side facing the front portion 15, the insertion block 81 has a second locking block 811 on a side away from the end cap 8, the lower cover 12 is provided with a second locking groove 122 for inserting the insertion block 81, and after the insertion block 81 is inserted into the second locking groove 122, the second locking block 811 is locked on the upper cover 11.

Referring to fig. 17 and 18, at least one fixing groove 112 is formed in one side of the upper cover 11 facing the end cover 8, a fourth spring seat 113 is disposed on a bottom surface of the upper cover 11 at the fixing groove 112, a fourth return spring 114 is mounted on the fourth spring seat 113, a fifth spring seat 812 facing the fourth spring seat 113 is disposed on the end cover 8, and two ends of the fourth return spring 114 are respectively connected to the fourth spring seat 113 and the fifth spring seat 812.

The implementation principle of the embodiment is as follows:

1. the upper cover 11 and the lower cover 12 tightly press the adjusting driving mechanism 2 at the mounting cavity 13, so that the adjusting driving mechanism 2 is quickly mounted at the shell 1, and when the adjusting driving mechanism 2 is damaged, the upper cover 11 and the lower cover 12 are separated, so that the adjusting driving mechanism 2 is quickly dismounted at the shell 1;

2. the reset mechanism is arranged to reset the touch part 26 after touching the adjusting part, when the rotary knob 3 rotates, two sides of the arc-shaped piece 43 are respectively abutted against two ends of the reset torsion spring 41, so that when the knob rotates, the rotary knob 3 drives the end part of the reset torsion spring 41 to rotate, the end part of the reset torsion spring 41 drives the rotated card 31 to reset, and therefore the reset of the rotary knob 3 is realized;

3. a plurality of micro-gap switches all set up on circuit board 24, have realized the integration of a plurality of functions of electric fork-lift truck for when the staff is maintaining, a plurality of micro-gap switches are fixed in casing 1 department, have reduced and have broken away from between upper cover 11 and the lower cover 12, lead to the probability that a plurality of touch equipment drop from casing 1.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. A handle for a forklift, comprising a housing (1), the housing (1) including an upper cover (11) and a lower cover (12), the upper cover (11) and the lower cover (12) being fixed by a locking bolt, characterized in that: an installation cavity (13) is formed in front of the upper cover (11) and the lower cover (12), an adjusting driving mechanism (2) is installed in the installation cavity (13), the adjusting driving mechanism (2) comprises a rotating shaft (21), an installation seat (22) fixed on the installation cavity (13) and a circuit board (24) fixed on the installation seat (22), a fixing port (241) is formed in the circuit board (24), an adjuster (25) penetrating through the circuit board (24) is installed at the fixing port (241), and a Hall element (2512) is installed on the adjuster (25); a touch part (26) is sleeved on the rotating shaft (21), a magnetic block (262) for touching the Hall element (2512) is installed in the touch part (26), the rotating shaft (21) and the touch part (26) are relatively fixed, and the rotating shaft (21) is symmetrically provided with rotary knobs (3) which are relatively fixed with the rotating shaft (21) at the end parts of the rotating shaft (21);

the mount (22) includes a first housing (222) and a second housing (223), the circuit board (24) being disposed between the first housing (222) and the second housing (223);

at least two convex blocks (251) are arranged on the outer side wall of the regulator (25) at intervals in the circumferential direction, and mounting slot holes (2511) for mounting the Hall elements (2512) are formed in the convex blocks (251);

the adjuster (25) is provided with at least one first clamping block (252) on one side facing the circuit board (24), an inclined surface (2521) is formed on one side, away from the adjuster (25), of the first clamping block (252), and a first clamping groove (242) for the first clamping block (252) to be clamped into is formed in the position, corresponding to the first clamping block (252), of the circuit board (24);

the regulator (25) is provided with a small-diameter section at one side far away from the first shell (222), the small-diameter section is inserted into the circuit board (24), the small-diameter section is provided with a first limiting part (2522) at a position corresponding to the first clamping groove (242), and the circuit board (24) is provided with a first limiting groove (243) at a position corresponding to the first limiting part (2522) for the first limiting block to be clamped in;

the small-diameter section is provided with a first limiting strip (2523) at the position abutted with the circuit board (24), and the circuit board (24) is provided with a second limiting groove (244) for inserting the first limiting strip (2523) at the position corresponding to the first limiting strip (2523);

the inner side wall of the small-diameter section is in a step shape, the diameter of the small-diameter section is reduced towards the second shell (223) along the first shell (222), a first limiting ring (253) is installed on the inner side wall of the small-diameter section, the outer side wall and the inner side wall of the first limiting ring (253) are in the step shape, and the diameter of the small-diameter section is reduced towards the second shell (223) along the first shell (222);

the touch piece (26) penetrates through the circuit board (24), an installation ring groove (261) for installing the magnetic block (262) is formed in the end face of the touch piece (26) facing the circuit board (24) in the circumferential direction, a limiting groove (2611) is formed in one side, close to the rotating shaft (21), of the touch piece (26) along the length direction of the touch piece (26) on the installation ring groove (261), and the magnetic block (262) is provided with a limiting convex rib (2621) at a position corresponding to the limiting groove (2611);

the end part, close to the circuit board (24), of the contact piece (26) in the mounting ring groove (261) is provided with a small-diameter section, and the inner side wall of the first limiting ring (253) is provided with an inner ring sleeved on the small-diameter section;

the first shell (222) and the second shell (223) are respectively provided with a clamping ring (23) which is right opposite to the regulator (25), the first shell (222) and the second shell (223) are circumferentially provided with at least one second limiting groove (244) at the clamping ring (23) corresponding to the first shell and the second shell, the outer side wall of the clamping ring (23) is provided with second limiting blocks which are in one-to-one correspondence with the second limiting grooves (244), the clamping ring (23) is provided with a clamping part (232) at one side facing the circuit board (24), and the diameter of the clamping part (232) is larger than that of the clamping ring (23);

a second shaft sleeve (2232) is arranged on the inner side wall of the clamping ring (23) of the second shell (223), a butting ring (2233) is arranged on one side, facing the circuit board (24), of the second shaft sleeve (2232), one end of the butting ring (2233) is abutted to the clamping ring (23), the other end of the butting ring is abutted to the trigger (26), and the second shaft sleeve (2232) is sleeved on the rotating shaft (21) and inserted into the clamping ring (23);

the trip element (26) has a shaft connection (263) on the side facing the first housing (222) for inserting the clamping ring (23); and a third shaft sleeve (264) is arranged on the triggering part (26), one end of the third shaft sleeve (264) is abutted with the regulator (25), and the other end of the third shaft sleeve (264) is abutted with the clamping ring (23) close to the first shell (222).

2. The handle for a forklift according to claim 1, wherein: a reset mechanism is installed between the adjusting driving mechanism (2) and the rotating knob (3), the reset mechanism comprises a reset plate (4) installed at the position of the shell (1), a reset torsion spring (41) installed on the reset plate (4) and a clamping piece (31) on the rotating knob (3), an installation sleeve (42) is arranged on one side, facing the rotating knob (3), of the reset plate (4), the reset plate (4) is provided with an arc-shaped piece (43) at the top of the installation sleeve (42), the reset torsion spring (41) is sleeved on the installation sleeve (42), and two ends of the reset torsion spring (41) are respectively abutted against two sides of the arc-shaped piece (43); the rotary knob (3) is arranged on the rotating shaft (21), and two sides of the clamping piece (31) are respectively abutted against two ends of the reset torsion spring (41).

3. A handle for a forklift according to claim 2, wherein: the upper cover (11) is provided with a first mounting opening (111), the lower cover (12) is provided with a second mounting opening (121), and the first mounting opening (111) and the second mounting opening (121) are formed with mounting bayonets (17) for clamping the reset plate (4) on the shell (1).

4. A handle for a forklift according to claim 3, wherein: the two sides of the reset plate (4) facing the side wall of the rotating knob (3) are provided with limiting pieces (44) for limiting the rotating angle of the rotating shaft (21).

5. The handle for a forklift according to claim 4, wherein: a first shaft sleeve (421) is installed on the reset plate (4) at the installation sleeve (42), an installation flange (4211) is arranged on one side, facing the rotary knob (3), of the first shaft sleeve (421), the diameter of the cross section of the installation flange (4211) is larger than that of the cross section of the reset torsion spring (41), and when the first shaft sleeve (421) is installed on the installation sleeve (42), the rotary knob (3) presses the first shaft sleeve (421) at the installation sleeve (42); the rotary knob (3) has an insertion part (32) which is inserted into the first sleeve (421) on the side facing the mounting sleeve (42).

6. The handle for a forklift according to claim 1, wherein: the first shell (222) is circumferentially provided with an outer annular groove (2221) at one side facing the second shell (223), and the second shell (223) is circumferentially provided with an inner annular groove (2231) at one side facing the first shell (222) for the end part of the second shell (223) to be clamped into.

7. The handle for a forklift according to claim 1, wherein: first micro-gap switch (245) and second micro-gap switch (246) are installed towards one side of upper cover (11) in circuit board (24), circuit board (24) is towards third micro-gap switch (247) are installed to one side of lower cover (12), first micro-gap switch (245), second micro-gap switch (246) with third micro-gap switch (247) all stretch out mount pad (22), upper cover (11) with first micro-gap switch (245) with start button is all installed to second micro-gap switch (246) corresponding position department.

8. The handle for a forklift according to claim 7, wherein: the shell (1) comprises a front part (15) and a rear part (16), the adjusting driving device is mounted on the rear part (16), an emergency stop mechanism is mounted at one end of the rear part (16) far away from the front part (15), the emergency stop mechanism comprises an end cover (8) hinged to the upper cover (11) and a fourth micro switch (248) mounted on the circuit board (24), the fourth micro switch (248) extends out of the mounting seat (22), and a fourth butt joint block is arranged on the end cover (8) at a position corresponding to the fourth micro switch (248); an inserting block (81) is arranged on one side, facing the fourth microswitch (248), of the end cover (8), a second clamping block (811) is arranged at the top of the inserting block (81), a second clamping groove (122) for the inserting block (81) to insert is formed in the position, corresponding to the inserting block (81), of the lower cover (12), and the second clamping block (811) is clamped at the upper cover (11).

9. The handle for a forklift according to claim 8, wherein: at least one fixed slot (112) has been seted up towards one side of end cover (8) in upper cover (11), upper cover (11) are equipped with first spring holder (523) and install fourth reset spring (114) on first spring holder (523) in the bottom surface of fixed slot (112) department, install on end cover (8) with just right second spring holder (64) of first spring holder (523), reset spring keeps away from the one end of first spring holder (523) inserts second spring holder (64).