CN111362195B - Armrest mechanism for forklift - Google Patents
Armrest mechanism for forklift Download PDFInfo
- Publication number
- CN111362195B CN111362195B CN202010286998.1A CN202010286998A CN111362195B CN 111362195 B CN111362195 B CN 111362195B CN 202010286998 A CN202010286998 A CN 202010286998A CN 111362195 B CN111362195 B CN 111362195B
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- China
- Prior art keywords
- limiting
- connecting rod
- forklift
- handrail
- block
- 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.)
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- 230000007246 mechanism Effects 0.000 title claims abstract description 27
- 230000009471 action Effects 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000006872 improvement Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/0759—Details of operating station, e.g. seats, levers, operator platforms, cabin suspension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07504—Accessories, e.g. for towing, charging, locking
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses an armrest mechanism for a forklift, which comprises armrests, a connecting rod and a fixed seat, wherein the armrests are connected with the connecting rod, the connecting rod is rotationally connected with the fixed seat, and the connecting rod is connected with the fixed seat through a rotary locking assembly; the rotary locking assembly comprises a clamping ring and a swinging limiting movable block, the clamping ring is sleeved on the connecting rod, one end of the swinging limiting movable block is rotationally connected with the clamping ring, the other end of the swinging limiting movable block is provided with a positioning block, the clamping ring is provided with a movable groove along the radial direction, and the positioning block can move in the movable groove; the rotational locking assembly further includes a resilient member and a cam hook. According to the handrail mechanism for the forklift, the rotating locking assembly is arranged, so that the handrail can be locked to a working state through the rotating locking assembly, when the handrail is required to be put down in a turning or in a narrow space, the handrail is unlocked through the rotating locking mechanism, the operation is convenient, and the space occupation can be reduced in a non-working state.
Description
Technical Field
The invention relates to the technical field of forklifts, in particular to an armrest mechanism for forklifts.
Background
The forklift is an industrial transport vehicle, and is various wheeled transport vehicles for loading, unloading, stacking and short-distance transport of finished pallet cargoes, widely applied to the economic departments of various countries such as stations, cylinder ports, airports, factories and warehouses, and is high-efficiency equipment for mechanical loading, unloading, stacking and short-distance transport. With the development of society, the use environment of the forklift is increasingly complex, and in order to meet the requirement of diversity of forklift functions, higher requirements are correspondingly generated on the design and the manufacture of the forklift. The handrail is the safety protection part on the fork truck, can protect operating personnel's safety when using, and fork truck when narrow and small space or special scene use, the existence of handrail then can cause to use inconveniently, occupies more space when parking simultaneously.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an armrest mechanism for an adjustable forklift with reasonable structure. The technical scheme is as follows:
The handrail mechanism for the forklift comprises a handrail, a connecting rod and a fixed seat, wherein the handrail is connected with the connecting rod, the connecting rod is rotationally connected with the fixed seat, and the connecting rod is connected with the fixed seat through a rotary locking assembly;
The rotary locking assembly comprises a clamping ring and a swing limiting movable block, the clamping ring is sleeved on the connecting rod, one end of the swing limiting movable block is rotationally connected with the clamping ring, a positioning block is arranged at the other end of the swing limiting movable block, a movable groove is arranged on the clamping ring along the radial direction, and the positioning block can move in the movable groove;
the rotary locking assembly further comprises an elastic piece and a cam hook, the cam hook is rotationally connected with the fixed seat, one end of the cam hook is connected with the fixed seat through the elastic piece, and a limiting block matched with the swing limiting movable block is fixed on the cam hook;
The handrail is lifted upwards to drive the connecting rod to rotate to a locking state, when the locking state is achieved, the cam hook is matched with the movable groove to apply acting force to the clamping ring under the restoring force of the elastic piece, meanwhile, the limiting block and the swinging limiting movable block are abutted to apply reaction force for balancing the acting force to the swinging limiting movable block, the handrail is lifted upwards continuously, and the swinging limiting movable block is matched with the positioning block to push the cam hook to be separated from the movable groove, so that unlocking is achieved.
As a further improvement of the invention, the connecting rod is also sleeved with a limiting clamping plate, the fixing seat is provided with a limiting plate matched with the limiting clamping plate, and the limiting clamping plate is matched with the limiting plate to limit the rotation range of the connecting rod.
As a further improvement of the invention, two mounting seats are arranged on the fixing seat, and round holes matched with the connecting rods are arranged on the mounting seats.
As a further improvement of the invention, the limiting clamping plate is arranged between the two bases, and the limiting clamping plate is matched with the bases to axially limit the connecting rod.
As a further improvement of the invention, the mounting seat comprises a base and an upper seat, and the round hole is formed between the upper seat and the base.
As a further improvement of the invention, the number of the limiting clamping plates is two, and the two limiting clamping plates are symmetrically arranged.
As a further improvement of the invention, the speed limiting sensing plate is arranged on the connecting rod, the sensing switch is arranged on the fixing seat, the speed limiting sensing plate can be driven when the connecting rod rotates, and when the speed limiting sensing plate senses the sensing switch, the connecting rod and the fixing seat are in a locking state under the action of the rotary locking assembly.
As a further improvement of the invention, the swing limiting movable block comprises a first abutting surface, a first unhooking surface and a first arc-shaped surface, wherein the first abutting surface is connected with the first unhooking surface through the first arc-shaped surface; the limiting block comprises a second abutting surface, a second unhooking surface and a second arc-shaped surface, and the second abutting surface is connected with the second unhooking surface through the second arc-shaped surface. The first abutting surface and the first unhooking surface are acute angles, and the second abutting surface and the second unhooking surface are obtuse angles.
As a further improvement of the invention, a gas spring is also connected between the fixing seat and the connecting rod.
As a further improvement of the invention, the elastic member is a tension spring.
The invention has the beneficial effects that:
according to the handrail mechanism for the forklift, the rotating locking assembly is arranged, so that the handrail can be locked to a working state through the rotating locking assembly, when the handrail is required to be put down in a turning or in a narrow space, the handrail is unlocked through the rotating locking mechanism, the operation is convenient, and the space occupation can be reduced in a non-working state.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention, as well as the preferred embodiments thereof, together with the following detailed description of the invention, given by way of illustration only, together with the accompanying drawings.
Drawings
FIG. 1 is a schematic view of the overall structure of an armrest mechanism for a forklift in accordance with an embodiment of the present invention;
FIG. 2 is a schematic view of a part of an armrest mechanism for a forklift according to an embodiment of the present invention;
FIG. 3 is a schematic diagram showing a part of an armrest mechanism for a forklift according to an embodiment of the present invention;
FIG. 4 is a schematic view of a snap ring according to an embodiment of the present invention;
FIG. 5 is a schematic view of the structure of a cam hook in an embodiment of the present invention;
FIG. 6 is a schematic view of a truck armrest mechanism in a state of one embodiment of the present invention;
FIG. 7 is a schematic view of the armrest mechanism for a forklift in a second state according to an embodiment of the present invention;
FIG. 8 is a schematic diagram illustrating the cooperation of the swing limit stop and the stop of FIG. 7;
FIG. 9 is a schematic view of the truck armrest mechanism in a third configuration in accordance with embodiments of the present invention;
FIG. 10 is a schematic diagram of the cooperation of the swing limit stop and the stop of FIG. 9;
FIG. 11 is a schematic view of the truck armrest mechanism in a fourth state in accordance with an embodiment of the present invention;
Fig. 12 is a schematic diagram showing the cooperation of the swing limit stop block and the stopper in fig. 11.
Marking: 10. an armrest; 20. a connecting rod; 21. a limiting clamping plate; 23. a mounting base; 24. a shaft sleeve; 25. a speed limit sensing plate; 30. a fixing seat; 31. a limiting plate; 32. a gas spring; 33. an inductive switch; 40. a clasp; 41. a movable groove; 50. swinging the limiting movable block; 51. a first abutment surface; 52. a first unhooking surface; 53. a first arcuate surface; 60. a positioning block; 70. an elastic member; 80. a cam hook; 90. a limiting block; 91. a second abutment surface; 92. a second unhooking surface; 93. and a second arc-shaped surface.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
As shown in fig. 1, the handrail mechanism for a forklift in the embodiment of the present invention includes a handrail 10, a connecting rod 20, and a fixing base 30, wherein the handrail 10 is connected to the connecting rod 20, the connecting rod 20 is rotatably connected to the fixing base 30, and the connecting rod 20 is connected to the fixing base 30 through a rotation locking assembly.
As shown in fig. 2-3, the rotary locking assembly comprises a snap ring 40 and a swing limiting movable block 50, the snap ring 40 is sleeved on the connecting rod 20, one end of the swing limiting movable block 50 is rotatably connected with the snap ring 40, and a positioning block 60 is arranged at the other end of the swing limiting movable block 50.
In this embodiment, the connecting rod 20 is further sleeved with a limiting clamping plate 21, the fixing seat 30 is provided with a limiting plate 31 matched with the limiting clamping plate 21, and the limiting clamping plate 21 and the limiting plate 31 are matched to limit the rotation range of the connecting rod 20.
In this embodiment, two mounting seats 23 are provided on the fixing seat 30, a circular hole matched with the connecting rod 20 is provided on the mounting seat 23, and the connecting rod 20 is connected with the circular hole through a shaft sleeve 24. Specifically, the mounting seat 23 comprises a base and an upper seat, a round hole is formed between the upper seat and the base, and the upper seat is connected with the base through screws.
In this embodiment, the limiting clamping plate 21 is disposed between two bases, and the limiting clamping plate 21 is matched with the bases to axially limit the connecting rod 20.
In this embodiment, the number of the limiting clips 21 is two, and the two limiting clips 21 are symmetrically arranged.
As shown in fig. 4, the snap ring 40 is provided with a movable groove 41 along the radial direction, and the positioning block 60 can move in the movable groove 41.
The rotation locking assembly further comprises an elastic member 70 and a cam hook 80, the cam hook 80 is rotatably connected with the fixed seat 30, one end of the cam hook 80 is connected with the fixed seat 30 through the elastic member 70, a limiting block 90 matched with the swing limiting movable block 50 is fixed on the cam hook 80, and the cam hook 80 is shown in fig. 5. Preferably, the elastic member 70 is a tension spring.
The armrest 10 is lifted upwards to drive the connecting rod 20 to rotate to a locking state, when the locking state is achieved, the cam hook 80 is matched with the movable groove 41 to apply an acting force to the clamping ring 40 under the restoring force of the elastic piece 70, meanwhile, the limiting block 90 and the swinging limiting movable block 50 are abutted to apply a reaction force for balancing the acting force to the swinging limiting movable block 50, the armrest 10 is lifted upwards continuously, and the swinging limiting movable block 50 is matched with the positioning block 60 to push the cam hook 80 to be separated from the movable groove 41, so that unlocking is achieved.
In one embodiment, the connecting rod 20 is provided with a speed limiting sensing plate 25, the fixing seat 30 is provided with a sensing switch 33, the connecting rod 20 can drive the speed limiting sensing plate 25 when rotating, and when the speed limiting sensing plate 25 senses the sensing switch 33, the connecting rod 20 and the fixing seat 30 are in a locking state under the action of the rotary locking assembly. At this time, the armrest 10 is in a lifted working state, so that the safety of operators can be protected, the speed-limiting sensing plate 25 can control the forklift to accelerate after sensing the sensing switch 33, and when the speed-limiting sensing plate 25 does not sense the sensing switch 33, the armrest is not lifted to the working state, and at this time, if the forklift is in a running state, the forklift is kept at a low speed.
In this embodiment, the armrest 10 and the connecting rod 20 are assembled in a U-shape. Is convenient for operators to hold.
In one embodiment, a gas spring 32 is further connected between the fixing base 30 and the connecting rod 20. Can play a buffering role when the connecting rod 20 rotates.
Specifically, the movable groove 41 includes a left groove surface and a right groove surface, which are used for limiting the movable range of the positioning block 60 in the movable groove 41; the swing limiting movable block 50 comprises a first abutting surface 51, a first unhooking surface 52 and a first arc-shaped surface 53, and the first abutting surface 51 and the first unhooking surface 52 are connected through the first arc-shaped surface 53; the stopper 90 includes a second abutment surface 91, a second unhooking surface 92, and a second arc surface 93, and the second abutment surface 91 and the second unhooking surface 92 are connected by the second arc surface 93. Wherein, the first abutting surface 51 and the first unhooking surface 52 are acute angles, and the second abutting surface 91 and the second unhooking surface 92 are obtuse angles.
As shown in fig. 6, in the first state of the armrest mechanism for the forklift, the armrest 10 is not lifted, and the cam hook 80 is brought into contact with the outer peripheral wall of the retainer ring 40 by the elastic member 70.
As shown in fig. 7 to 8, the armrest 10 is lifted to the second state, which is the locked state, the cam hook 80 applies a force to the snap ring 40 in cooperation with the right groove surface of the movable groove 41 under the restoring force of the elastic member 70, and at the same time, the stopper 90 and the swing limit block 50 abut against each other to apply a reaction force for balancing the force to the swing limit block 50. At this time, the first contact surface 51 and the second contact surface 91 come into contact.
As shown in fig. 9 to 10, the armrest 10 is continuously lifted to the third state, and in the process from the second state to the third state, the first abutting surface 51 is separated from the second abutting surface 91, the cam hook 80 is separated from the right groove surface of the movable groove 41, the first arc surface 53 is first abutted against the second abutting surface 91, then the first arc surface 53 is abutted against the second arc surface 93, and finally, the first arc surface 53 is abutted against the second unhooking surface 92 due to the obtuse angle between the second abutting surface 91 and the second unhooking surface 92. The armrest 10 is continuously lifted, because the first abutting surface 51 and the first unhooking surface 52 are acute angles, the first arc surface 53 drives the swing limiting movable block 50 under the action of the second unhooking surface 92, the positioning block 60 is driven from abutting with the left groove surface to abutting with the right groove surface, and meanwhile, the first unhooking surface 52 abuts with the second unhooking surface 92.
As shown in fig. 11-12, the armrest 10 is lifted continuously to the fourth state, at this time, the first unhooking surface 52 and the second unhooking surface 92 gradually separate until the first arc surface 53 abuts against the second arc surface 93, the armrest 10 is lifted continuously, the first arc surface 53 gradually separates from the second arc surface 93, and at the same time, the cam hook 80 abuts against the outer peripheral wall of the snap ring 40 under the action of the elastic member 70, so as to form unlocking. Next, the armrest 10 may be lowered to state one.
The above embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention. The protection scope of the invention is subject to the claims.
Claims (8)
1. The handrail mechanism for the forklift is characterized by comprising a handrail, a connecting rod and a fixed seat, wherein the handrail is connected with the connecting rod, the connecting rod is rotationally connected with the fixed seat, and the connecting rod is connected with the fixed seat through a rotary locking assembly;
The rotary locking assembly comprises a clamping ring and a swing limiting movable block, the clamping ring is sleeved on the connecting rod, one end of the swing limiting movable block is rotationally connected with the clamping ring, a positioning block is arranged at the other end of the swing limiting movable block, a movable groove is arranged on the clamping ring along the radial direction, and the positioning block can move in the movable groove;
the rotary locking assembly further comprises an elastic piece and a cam hook, the cam hook is rotationally connected with the fixed seat, one end of the cam hook is connected with the fixed seat through the elastic piece, and a limiting block matched with the swing limiting movable block is fixed on the cam hook;
The handrail is lifted upwards to drive the connecting rod to rotate to a locking state, when the connecting rod is in the locking state, the cam hook is matched with the movable groove to apply acting force to the clamping ring under the restoring force of the elastic piece, meanwhile, the limiting block and the swinging limiting movable block are abutted to apply reaction force for balancing the acting force to the swinging limiting movable block, the handrail is lifted upwards continuously, and the swinging limiting movable block is matched with the positioning block to push the cam hook to be separated from the movable groove to form unlocking; a gas spring is also connected between the fixed seat and the connecting rod; the elastic piece is a tension spring.
2. The handrail mechanism for a forklift as claimed in claim 1, wherein the connecting rod is further sleeved with a limiting clamping plate, the fixing seat is provided with a limiting plate matched with the limiting clamping plate, and the limiting clamping plate is matched with the limiting plate to limit the rotation range of the connecting rod.
3. The armrest mechanism for a forklift as claimed in claim 2, wherein the fixing base is provided with two mounting seats, and the mounting seats are provided with round holes matched with the connecting rods.
4. A hand rest mechanism for a forklift as claimed in claim 3, wherein the limit catch plate is arranged between two bases, and the limit catch plate is matched with the bases to limit the connecting rod in the axial direction.
5. A hand rest mechanism for a forklift as claimed in claim 3, wherein the mounting base comprises a base and an upper base, the circular hole being formed between the upper base and the base.
6. The armrest mechanism for a forklift of claim 2, wherein the number of limiting clips is two, and the two limiting clips are symmetrically arranged.
7. The handrail mechanism for a forklift as claimed in claim 1, wherein the connecting rod is provided with a speed-limiting sensing plate, the fixing seat is provided with a sensing switch, the speed-limiting sensing plate can be driven when the connecting rod rotates, and when the speed-limiting sensing plate senses the sensing switch, the connecting rod and the fixing seat are in a locking state under the action of the rotary locking assembly.
8. The armrest mechanism for a forklift of claim 1, wherein the swing limit block comprises a first abutment surface, a first unhooking surface, and a first arcuate surface, the first abutment surface and the first unhooking surface being connected by the first arcuate surface; the limiting block comprises a second abutting surface, a second unhooking surface and a second arc-shaped surface, wherein the second abutting surface is connected with the second unhooking surface through the second arc-shaped surface, an acute angle is formed between the first abutting surface and the first unhooking surface, and an obtuse angle is formed between the second abutting surface and the second unhooking surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010286998.1A CN111362195B (en) | 2020-04-13 | 2020-04-13 | Armrest mechanism for forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010286998.1A CN111362195B (en) | 2020-04-13 | 2020-04-13 | Armrest mechanism for forklift |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111362195A CN111362195A (en) | 2020-07-03 |
| CN111362195B true CN111362195B (en) | 2024-05-14 |
Family
ID=71203318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010286998.1A Active CN111362195B (en) | 2020-04-13 | 2020-04-13 | Armrest mechanism for forklift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111362195B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216704A (en) * | 2014-07-02 | 2016-01-06 | 现代自动车株式会社 | Armrest lock |
| CN105996538A (en) * | 2016-07-08 | 2016-10-12 | 万旭勇 | Seat armrest capable of being adjusted in multiple dimensions |
| CN208463935U (en) * | 2018-01-11 | 2019-02-05 | 曹发华 | A kind of folded state can lock control armrest for closestool |
| CN212315454U (en) * | 2020-04-13 | 2021-01-08 | 苏州先锋物流装备科技有限公司 | Handrail mechanism for forklift |
-
2020
- 2020-04-13 CN CN202010286998.1A patent/CN111362195B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216704A (en) * | 2014-07-02 | 2016-01-06 | 现代自动车株式会社 | Armrest lock |
| CN105996538A (en) * | 2016-07-08 | 2016-10-12 | 万旭勇 | Seat armrest capable of being adjusted in multiple dimensions |
| CN208463935U (en) * | 2018-01-11 | 2019-02-05 | 曹发华 | A kind of folded state can lock control armrest for closestool |
| CN212315454U (en) * | 2020-04-13 | 2021-01-08 | 苏州先锋物流装备科技有限公司 | Handrail mechanism for forklift |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111362195A (en) | 2020-07-03 |
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