CN110540149A - Adjustable interval is locking mechanism for fork - Google Patents
Adjustable interval is locking mechanism for fork Download PDFInfo
- Publication number
- CN110540149A CN110540149A CN201910944515.XA CN201910944515A CN110540149A CN 110540149 A CN110540149 A CN 110540149A CN 201910944515 A CN201910944515 A CN 201910944515A CN 110540149 A CN110540149 A CN 110540149A
- Authority
- CN
- China
- Prior art keywords
- fork
- locking
- locking mechanism
- pull rod
- electromagnet
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000000750 progressive effect Effects 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
- B66F9/07504—Accessories, e.g. for towing, charging, locking
-
- 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
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
- B66F9/14—Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements
- B66F9/142—Movements of forks either individually or relative to each other
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 a locking mechanism for a fork with adjustable spacing, which is arranged in a sliding block at the joint of the fork and a fork supporting rod, wherein a sliding groove capable of accommodating the fork supporting rod is arranged in the sliding block, a vertical limiting groove is arranged above the sliding groove, a locking block is arranged in the vertical limiting groove, a locking rack matched with the locking block is arranged on the fork supporting rod, a reset spring and an electromagnet are also arranged between the locking block and the bottom of the limiting groove, and the expansion of the locking block is controlled by the reset spring and the electromagnet. After the distance between the forks is adjusted, the locking mechanism fixes the positions between the forks and the fork supporting rods, and further fixes the axial distance between the forks, so that the situation that the forks are unstable due to the change of the axial distance in the transportation process of the forks when the goods are too large is avoided.
Description
Technical Field
The invention relates to the technical field of forklift equipment, in particular to a locking mechanism for a fork with adjustable spacing.
Background
traditional fork truck goes up the fork and fixes on the mounting panel mostly, can not adjust in a flexible way when meetting the goods shelves of equidimension not, especially when the article of transporting are very big, if the distance between the fork is too narrow can lead to can not goods shelves unstable on the fork, perhaps takes place easily when meetting the uneven road surface and heels during the turn, leads to the problem for safe transportation.
Therefore, the current fork with the adjustable distance is more widely applied and comprises a manual adjusting mode and an automatic adjusting mode, but the distance of the fork is adjustable, the connection relation between the fork and the fork supporting rod is obviously weak, the fork is easy to loosen or move relative to the fork supporting rod after long-term use, and the fork is very dangerous in the use process.
disclosure of Invention
The invention aims to provide a locking mechanism for a fork with adjustable spacing, which can be used for fixing the relative position between the fork with adjustable spacing and a fork supporting rod so as to further fix the axial spacing of the fork.
in order to achieve the purpose, the invention provides a locking mechanism for a fork with adjustable spacing, which is arranged in a sliding block at the joint of the fork and a fork supporting rod, wherein a sliding groove capable of accommodating the fork supporting rod is arranged in the sliding block, a vertical limiting groove is arranged above the sliding groove, a locking block is arranged in the vertical limiting groove, a locking rack matched with the locking block is arranged on the fork supporting rod, a reset spring and an electromagnet are also arranged between the locking block and the bottom of the limiting groove, and the expansion of the locking block is controlled by the reset spring and the electromagnet.
preferably, the electromagnet is positioned at the center of the bottom of the limiting groove and is electrically connected with an external control circuit.
preferably, a guide pull rod connected with the locking block through threads is further arranged above the locking block, and the guide pull rod is vertically arranged and penetrates through the outer side of the sliding block.
Preferably, the number of the return springs is two, the two return springs are symmetrically arranged on two sides of the guide pull rod, and the electromagnet is sleeved on the outer side of the guide pull rod.
Preferably, the upper end of the guide pull rod is also provided with a pull ring.
Preferably, the cross-sectional shape of the limiting groove is dovetail-shaped or T-shaped.
The locking mechanism for the fork with the adjustable interval is arranged in a sliding block at the joint of the fork and a fork supporting rod, a sliding groove capable of accommodating the fork supporting rod is arranged in the sliding block, a vertical limiting groove is arranged above the sliding groove, a locking block is arranged in the vertical limiting groove, a locking rack matched with the locking block is arranged on the fork supporting rod, a reset spring and an electromagnet are further arranged between the locking block and the bottom of the limiting groove, and the expansion and contraction of the locking block are controlled by the reset spring and the electromagnet. After the distance between the forks is adjusted, the locking mechanism fixes the positions between the forks and the fork supporting rods, and further fixes the axial distance between the forks, so that the situation that the forks are unstable due to the change of the axial distance in the transportation process of the forks when the goods are too large is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a perspective view of a locking mechanism for an adjustable-pitch fork in an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the adjustable spacing fork locking mechanism of FIG. 1.
The reference numerals in fig. 1 to 2 are as follows:
1. Mounting a plate; 2. a mounting seat; 4. a pallet fork; 5. a slider; 501. a limiting groove; 6. a fork support bar; 7. a locking rack; 9. a locking block; 16. a return spring; 18. a guide pull rod; 19. a pull ring; 20. an electromagnet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the invention is to provide a locking mechanism for a fork with adjustable spacing, which can be used for fixing the relative position between the fork with adjustable spacing and a fork supporting rod, thereby further fixing the axial spacing of the fork.
Referring to fig. 1-2, fig. 1 is a perspective view of a locking mechanism for a fork with adjustable spacing applied to a fork mechanism according to an embodiment of the present invention; FIG. 2 is a cross-sectional view of the adjustable spacing fork locking mechanism of FIG. 1.
usually, the whole fork mechanism is connected with a forklift through a vertically arranged mounting plate 1, a mounting seat 2 is convexly arranged at the upper end of the mounting plate 1, a fork supporting rod 6 penetrates through the mounting seat 2, the forks 4 are respectively arranged at two ends of the fork supporting rod 6 and can be connected with each other in a relatively horizontal sliding manner, the sliding can be realized manually or through arranging other mechanical or electronic components, which is not the invention point of the scheme, and therefore, the description is omitted.
To ensure the balanced forces on the fork support bar 6, the mounting seat 2 is usually located at the center of the fork support bar 6. When the left and right forks of the fork 4 are respectively positioned at the outer end portions of the fork support rods 6, the axial distance of the fork 4 is the largest.
In a specific embodiment, the locking mechanism for the fork with the adjustable spacing provided by the invention is arranged in a sliding block 5 at the joint of a fork 4 and a fork support rod 6, a sliding groove capable of accommodating the fork support rod 6 is arranged in the sliding block 5, a vertical limiting groove 501 is arranged above the sliding groove, the sliding groove is communicated with the limiting groove 501, and the cross section of the limiting groove 501 is in a dovetail shape or a T shape. A locking block 9 is arranged in the limiting groove 501, a cavity is arranged between the locking block 9 and the bottom of the limiting groove 501, a reset spring 16 and an electromagnet 20 are arranged in the cavity, and the up-down expansion of the locking block 9 is controlled by the reset spring 16 and the electromagnet 20.
In order to achieve a uniform force on the locking piece 9, the electromagnet 20 and the return spring 16 are usually arranged centrally above the locking piece 9, for example the electromagnet 20 is arranged in the return spring 16. The return spring 16 is preferably made of a non-magnetically conductive metal material. Of course, the number of the return spring 16 and the electromagnet 20 may be set to several.
In addition, a locking rack 7 capable of being matched with the locking block 9 is arranged on the pallet fork supporting rod 6, the locking rack 7 can be arranged on the upper surface of the pallet fork supporting rod 6 and extends along the axial direction of the pallet fork supporting rod, and usually, meshing teeth matched with each other can be arranged on the upper surface of the locking rack 7 and the lower surface of the locking block 9.
After the adjustment of the distance between the fork 4 at each time is finished, the position of the fork is fixed again by the aid of the locking mechanism, and further the situation that the fork is unstable due to the fact that the axial distance of the fork is changed in the process of transporting the goods when the goods are too large is avoided.
In particular, the electromagnet 20 may be controlled by an external control circuit, which may be provided on the fork support bar 6 or on the mounting base 2, which control circuit typically comprises a switch and the electromagnet 20 in series.
When the electromagnet 20 is electrified, the electromagnet attracts the locking block 9 to retract, at the moment, the locking state is released, and the pallet fork 4 can axially move relative to the support rod 6; when the electromagnet 20 is powered off, under the reset force of the reset spring 16, the locking block 9 extends out to be matched with the locking rack 7 for locking, and at the moment, the pallet fork 4 is fixed on the supporting rod 6.
Above-mentioned locking mechanism's locking mode accuracy is high, can the position of accurate fixed fork 4, and controls locking piece 9 degree of automation height through electro-magnet 20, can realize the locking or the unblock of fork 4 through the switch, and is very convenient quick.
Further, in order to avoid the failure of the electromagnet 20 or the power failure, a manual locking member may be added to the locking mechanism.
Specifically, a guide pull rod 18 connected with the locking block 9 through threads is arranged above the locking block, the lower end of the guide pull rod 18 is arranged into a thread section, a thread groove is formed in the upper end of the locking block 9, and the locking block 9 is detachably connected with the guide pull rod 18 through threads. The guide pull rod 18 is vertically arranged and penetrates through the outer side of the sliding block 5, and the sliding block 5 is provided with a yielding hole for the guide pull rod 18 to penetrate through. When the pallet fork 4 needs to be fixed, the guide pull rod 18 is pressed downwards to enable the locking block 9 to be meshed with the locking rack 7, and meanwhile, when the fixation needs to be released, the guide pull rod 18 is lifted upwards. The guide rods 18 are typically made of a non-magnetically conductive metal material to avoid interference with the electromagnets 20.
The upper end of the guide pull rod 18 can be provided with a pull ring 19, so that the operation is convenient. The guide pull rod 18 facilitates on the one hand the pulling up of the locking block 9 and on the other hand provides a guiding function for the longitudinal extension of the locking block 9.
On the basis of the arrangement of the guide pull rod 18, in order to further ensure the locking effect of the locking block 9, two return springs 16 can be arranged and symmetrically arranged on two sides of the guide pull rod 18, and the electromagnet 20 is sleeved on the outer side of the guide pull rod 18. In this way, the force applied to the locking block 9 is more balanced.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The locking mechanism for the adjustable-spacing pallet fork provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (6)
1. A locking mechanism for a pallet fork with adjustable spacing is characterized in that,
It sets up in the slider of fork and fork bracing piece junction, be provided with in the slider and hold the spout of fork bracing piece, the spout top is provided with vertical spacing groove, vertical spacing inslot is provided with the locking piece, be provided with on the fork bracing piece can with locking piece matched with locking rack, the locking piece with still be provided with reset spring and electro-magnet between the spacing tank bottom, the flexible by of locking piece reset spring with the electro-magnet is controlled.
2. The locking mechanism for an adjustable spacing fork of claim 1,
the electromagnet is positioned at the center of the bottom of the limiting groove and is electrically connected with an external control circuit.
3. The locking mechanism for an adjustable spacing fork of any one of claims 1 or 2,
The locking piece top still is provided with the direction pull rod rather than the screw thread meets, the vertical setting of direction pull rod just runs through to the outside of slider.
4. The adjustable spacing fork locking mechanism of claim 3,
The number of the reset springs is two, the two reset springs are symmetrically arranged on two sides of the guide pull rod, and meanwhile the electromagnet is sleeved on the outer side of the guide pull rod.
5. The adjustable spacing fork locking mechanism of claim 4,
And the upper end of the guide pull rod is also provided with a pull ring.
6. The adjustable spacing fork locking mechanism of claim 5,
The cross section of the limiting groove is in a dovetail shape or a T shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910944515.XA CN110540149A (en) | 2019-09-30 | 2019-09-30 | Adjustable interval is locking mechanism for fork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910944515.XA CN110540149A (en) | 2019-09-30 | 2019-09-30 | Adjustable interval is locking mechanism for fork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110540149A true CN110540149A (en) | 2019-12-06 |
Family
ID=68715267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910944515.XA Pending CN110540149A (en) | 2019-09-30 | 2019-09-30 | Adjustable interval is locking mechanism for fork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110540149A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10988155B2 (en) | 2019-02-25 | 2021-04-27 | Rehrig Pacific Company | Adjustable span tine pallet jack |
| US11111122B2 (en) | 2016-02-16 | 2021-09-07 | Rehrig Pacific Company | Lift and pallet |
| CN114291033A (en) * | 2021-12-13 | 2022-04-08 | 河南嘉晨智能控制股份有限公司 | Method and device for flexibly controlling driving authority of industrial vehicle |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0456198U (en) * | 1990-09-21 | 1992-05-14 | ||
| JPH07997U (en) * | 1993-06-08 | 1995-01-06 | 株式会社豊田自動織機製作所 | Shift restriction device for fork shift device |
| JPH0840699A (en) * | 1994-07-28 | 1996-02-13 | Toyota Autom Loom Works Ltd | Fork fixing device of forklift |
| JP2000086191A (en) * | 1998-09-10 | 2000-03-28 | Nissan Motor Co Ltd | Carriage supporting device of forklift |
| JP2005170638A (en) * | 2003-12-12 | 2005-06-30 | Nippon Yusoki Co Ltd | Fork positioning device |
| KR20130037933A (en) * | 2011-10-07 | 2013-04-17 | 현대중공업 주식회사 | Driving apparatus of mast for forklift truck using magnetic levitation principle |
| CN107500190A (en) * | 2017-10-18 | 2017-12-22 | 荆门创佳机械科技有限公司 | A kind of fork of forklift truck roll-setting gear with video system |
| CN107572457A (en) * | 2017-09-29 | 2018-01-12 | 苏州罗伯特木牛流马物流技术有限公司 | Multifunction fork truck pallet fork and fork truck |
| CN210505436U (en) * | 2019-09-30 | 2020-05-12 | 杭叉集团股份有限公司 | Adjustable interval is locking mechanism for fork |
-
2019
- 2019-09-30 CN CN201910944515.XA patent/CN110540149A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0456198U (en) * | 1990-09-21 | 1992-05-14 | ||
| JPH07997U (en) * | 1993-06-08 | 1995-01-06 | 株式会社豊田自動織機製作所 | Shift restriction device for fork shift device |
| JPH0840699A (en) * | 1994-07-28 | 1996-02-13 | Toyota Autom Loom Works Ltd | Fork fixing device of forklift |
| JP2000086191A (en) * | 1998-09-10 | 2000-03-28 | Nissan Motor Co Ltd | Carriage supporting device of forklift |
| JP2005170638A (en) * | 2003-12-12 | 2005-06-30 | Nippon Yusoki Co Ltd | Fork positioning device |
| KR20130037933A (en) * | 2011-10-07 | 2013-04-17 | 현대중공업 주식회사 | Driving apparatus of mast for forklift truck using magnetic levitation principle |
| CN107572457A (en) * | 2017-09-29 | 2018-01-12 | 苏州罗伯特木牛流马物流技术有限公司 | Multifunction fork truck pallet fork and fork truck |
| CN107500190A (en) * | 2017-10-18 | 2017-12-22 | 荆门创佳机械科技有限公司 | A kind of fork of forklift truck roll-setting gear with video system |
| CN210505436U (en) * | 2019-09-30 | 2020-05-12 | 杭叉集团股份有限公司 | Adjustable interval is locking mechanism for fork |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11111122B2 (en) | 2016-02-16 | 2021-09-07 | Rehrig Pacific Company | Lift and pallet |
| US10988155B2 (en) | 2019-02-25 | 2021-04-27 | Rehrig Pacific Company | Adjustable span tine pallet jack |
| US11260890B2 (en) | 2019-02-25 | 2022-03-01 | Rehrig Pacific Company | Adjustable span tine pallet jack |
| CN114291033A (en) * | 2021-12-13 | 2022-04-08 | 河南嘉晨智能控制股份有限公司 | Method and device for flexibly controlling driving authority of industrial vehicle |
| CN114291033B (en) * | 2021-12-13 | 2023-03-10 | 河南嘉晨智能控制股份有限公司 | Method and device for flexibly controlling driving authority of industrial vehicle |
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