CN109384174B - Pallet fork and pallet truck with pallet fork - Google Patents
Pallet fork and pallet truck with pallet fork Download PDFInfo
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- CN109384174B CN109384174B CN201710660111.9A CN201710660111A CN109384174B CN 109384174 B CN109384174 B CN 109384174B CN 201710660111 A CN201710660111 A CN 201710660111A CN 109384174 B CN109384174 B CN 109384174B
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- rail
- bearing plate
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- 230000000694 effects Effects 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 26
- 230000005484 gravity Effects 0.000 description 5
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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- 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
- B66F9/122—Platforms; Forks; Other load supporting or gripping members longitudinally movable
-
- 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
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- 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)
- Pallets (AREA)
Abstract
The invention belongs to the technical field of material handling equipment, and relates to a fork and a pallet truck with the same, wherein the fork comprises a fork main body, a movable bearing plate and two first movable connecting pieces; a through groove extending along the width direction of the fork main body is formed in the fork main body and is positioned in the middle of the length direction of the fork main body; the movable bearing plate is accommodated in the through groove, and two ends of one side edge of the movable bearing plate are respectively movably connected with the fork main body through two first movable connecting pieces; wherein, the movable bearing plate can be unfolded outwards or closed inwards around the first movable connecting piece. This a fork for pallet truck when bearing material volume when too big, with activity loading board upset 180 degrees, the width of fork this moment will increase, even the pallet truck turns to the too big or when jolting the road conditions of side direction yawing force, because the width scope increase of fork makes the material focus still in its bearing range to the material can not take place the side direction and tumbles yet.
Description
Technical Field
The invention belongs to the technical field of material handling equipment, and particularly relates to a pallet fork and a pallet truck with the pallet fork.
Background
A prior art is used for commodity circulation transport pallet truck, general pallet truck turns to or when going in the road conditions of jolting when the pallet truck is using, if the centre of gravity of material is when the width scope that the fork of pallet truck bore, the material that the pallet truck bore can not produce the side direction and overturn.
However, when the volume of the material carrying device is large and the height of the material is too high, the gravity center of the material is easily increased, and when the width of the material exceeds the width carried by the fork of the pallet truck, so that when the lateral deflection force of the pallet truck during steering is too large or the pallet truck runs on bumpy road conditions, the gravity center of the material exceeds the width range of the fork or the width of the material, and the material is easily overturned to cause a safety accident in material handling.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the fork for the pallet truck is provided aiming at the problem that the existing pallet truck causes safety accidents due to the defect that the material is laterally tipped when the volume of the loaded material is too large.
In order to solve the technical problem, in one aspect, an embodiment of the present invention provides a pallet fork for a pallet truck, where the pallet fork includes a fork main body, a movable loading plate, and two first movable connecting pieces; a through groove extending along the width direction of the fork main body is formed in the fork main body, and the through groove is positioned in the middle of the length direction of the fork main body; the movable bearing plate is accommodated in the through groove, and two ends of one side edge of the movable bearing plate are movably connected with the fork main body through the two first movable connecting pieces respectively; wherein the movable bearing plate can be unfolded outwards or closed inwards around the first movable connecting piece.
Optionally, the fork further comprises a locking mechanism arranged on the inner side wall of the fork main body, and the locking mechanism comprises two supports arranged on the inner side wall of the fork main body at intervals and guide rods penetrating through the two supports; the lower surface of the movable bearing plate is provided with an ear plate with a through hole, and the guide rod can penetrate through the through hole in the ear plate.
Optionally, the locking mechanism further comprises a locking button, the locking button is arranged on the side wall of the fork main body, the locking button comprises a locking handle and a locking part connected with the locking handle, the locking handle part protrudes out of the side wall of the fork main body, the locking part is arranged in the side wall of the fork main body, and the locking part comprises two locking pins which are arranged along the length direction of the fork main body and are spaced downwards at a certain distance; the side wall of the fork main body is provided with a guide groove, the guide rod is provided with an adjusting handle extending towards the side wall of the fork main body, and the extending end of the adjusting handle is accommodated in the guide groove; the middle part of the adjusting handle facing upwards is provided with a groove, and the groove is positioned below the arrangement direction of the locking pin; by moving the adjustment handle and the locking button, the two locking pins can be inserted into the grooves in sequence.
Another embodiment of the invention provides a pallet fork, which is used for a pallet truck and comprises a pallet fork main body, a movable bearing plate, two first movable connecting pieces and two second movable connecting pieces; a through groove extending along the width direction of the fork main body is formed in the fork main body, and the through groove is positioned in the middle of the length direction of the fork main body; the two second movable connecting pieces are respectively arranged on two side surfaces of the through groove; the movable bearing plate is arranged between the two second movable connecting pieces, and two ends of one side edge of the movable bearing plate are movably connected with the two second movable connecting pieces through the two first movable connecting pieces respectively; wherein the movable bearing plate can be unfolded outwards or closed inwards around the first movable connecting piece.
Optionally, the second movable connecting piece is a three-section sliding rail, and includes a fixed rail, a transfer rail embedded in the fixed rail, and a movable rail embedded in the transfer rail, where the movable rail and the transfer rail can reciprocate along the width direction of the fork main body relative to the fixed rail; the other side of the fixed rail is fixedly connected with the side face of the through groove, and the other side of the movable rail is connected with the movable bearing plate.
Optionally, the first movable connecting part is a hinge, and two ends of one side edge of the movable bearing plate are movably connected with the movable rail through the two hinges respectively.
Optionally, the movable rail includes a vertical section extending downward from the top of the side surface of the through groove and a horizontal section extending at least partially from the bottom end of the vertical section along the bottom surface of the through groove, the movable bearing plate is disposed on the horizontal section, and two ends of one side of the movable bearing plate are movably connected to the vertical section through the two hinges, respectively.
Optionally, the fork further comprises a locking mechanism arranged on the inner side wall of the fork main body, and the locking mechanism comprises two supports arranged on the inner side wall of the fork main body at intervals and guide rods penetrating through the two supports; be equipped with the through-hole on fixed rail, switching rail and the movable rail respectively, the lower surface of activity loading board is provided with the otic placode that has the through-hole, through-hole on fixed rail, switching rail, movable rail and the otic placode is located the same axis, just the guide arm can run through the through-hole on fixed rail, switching rail, movable rail and the otic placode.
Optionally, the locking mechanism further comprises a locking button, the locking button is arranged on the side wall of the fork main body, the locking button comprises a locking handle and a locking part connected with the locking handle, the locking handle part protrudes out of the side wall of the fork main body, the locking part is arranged in the side wall of the fork main body, and the locking part comprises three locking pins which are arranged at intervals in the length direction of the fork main body and face downwards; the side wall of the fork main body is provided with a guide groove, the guide rod is provided with an adjusting handle extending towards the side wall of the fork main body, and the extending end of the adjusting handle is accommodated in the guide groove; the middle part of the adjusting handle facing upwards is provided with a groove, and the groove is positioned below the arrangement direction of the locking pin; by moving the adjustment handle and the locking button, the three locking pins can be inserted into the grooves in sequence.
On the other hand, the embodiment of the utility model provides a pallet truck, including pallet truck main part and two parallel settings the fork.
The fork for the pallet truck comprises a fork main body, a movable loading plate and two first movable connecting pieces, wherein the movable loading plate is arranged on the fork main body; a through groove extending along the width direction of the fork main body is formed in the fork main body, a movable bearing plate is accommodated in the through groove, and two ends of one side edge of the movable bearing plate are movably connected with the fork main body through the two first movable connecting pieces respectively; the movable bearing plate can be unfolded outwards or closed inwards around the first movable connecting piece, when the volume of the bearing materials is too large, the movable bearing plate is turned for 180 degrees (unfolded outwards), the width of the pallet fork is increased, and even if the pallet truck is steered to cause overlarge lateral deflection force or runs on bumpy road conditions, the gravity center of the materials is still in the bearing range due to the increase of the width range of the pallet fork, so that the materials cannot roll over laterally.
Drawings
FIG. 1 is a perspective view (initial state) of a pallet fork provided in a first embodiment of the present invention;
FIG. 2 is a perspective view of a fork provided by a first embodiment of the present invention;
FIG. 3 is a perspective view (flipped over) of the pallet fork provided by the first embodiment of the present invention;
FIG. 4 is a diagram of the relationship of the locking mechanism and the ear plate of the fork provided by the first embodiment of the present invention;
FIG. 5 is a perspective view of a locking button of the fork provided by the first embodiment of the present invention;
FIG. 6 is a perspective view of a guide bar of the fork provided by the first embodiment of the present invention;
FIG. 7 is a relationship view of the guide rods and the locking button of the fork provided by the first embodiment of the present invention;
FIG. 8 is a perspective view (initial state) of a pallet fork provided in accordance with a second embodiment of the present invention;
FIG. 9 is a perspective view of a fork provided by a second embodiment of the present invention;
FIG. 10 is a perspective view (flipped over) of a pallet fork provided by a second embodiment of the present invention;
FIG. 11 is a perspective view of a second movable connection of the fork provided by the second embodiment of the present invention;
FIG. 12 is a perspective view (slid away) of a second movable link of the fork provided by the second embodiment of the present invention;
FIG. 13 is a diagram of the relationship of the locking mechanism and ear plate of the fork provided by the second embodiment of the present invention;
FIG. 14 is a perspective view of a locking button of the fork provided by the second embodiment of the present invention;
FIG. 15 is a perspective view of a guide bar of the fork provided by the second embodiment of the present invention;
FIG. 16 is a view of the guide rods and locking buttons of the fork provided in accordance with the second embodiment of the present invention;
fig. 17 is a top view (with the movable carrying plate turned upside down) of the pallet truck according to the third embodiment of the present invention;
fig. 18 is a top view (sliding of the movable loading plate) of the pallet truck according to the third embodiment of the present invention.
The reference numerals in the specification are as follows:
1. a fork body; 2. a movable bearing plate; 3. a first movable connector; 4. a second movable connection; 5. a load-bearing wheel; 6. a locking mechanism;
11. a through groove; 21. an ear plate; 41. a fixed rail; 42. transferring the rail; 43. a movable rail; 61. a support; 62. a guide bar; 63. a locking button;
621. an adjusting handle; 622. a groove; 631. a locking handle; 632. a lock section; 6321. and a locking pin.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to 6, a first embodiment of the present invention provides a fork for a pallet truck, which comprises a fork main body 1, a movable loading plate 2, and two first movable connecting members 3, wherein the fork tip of the fork is provided with a load-bearing wheel 5.
As shown in fig. 1 and 2, a through groove 11 extending along the width direction of the fork main body 1 is formed on the fork main body 1, and the through groove 11 is located at the middle part of the length direction of the fork main body 1; the movable bearing plate 2 is accommodated in the through groove 11, and two ends of one side edge of the movable bearing plate 2 are movably connected with the fork main body 1 through the two first movable connecting pieces 3 respectively, wherein the one side edge is the side edge of the movable bearing plate 2 in the length direction of the fork main body 1.
Preferably, the first movable connecting part 3 is a hinge, and two ends of one side of the movable bearing plate 2 are movably connected with the movable bearing plate 2 through the two hinges respectively. As shown in fig. 3, the movable carrying plate can be opened outwards or closed inwards around the first movable connecting piece, specifically, the movable carrying plate 2 can be rotated 180 degrees around the hinge, and the rotation axis of the movable carrying plate is consistent with the length direction of the fork main body; when the pallet truck bears the materials with the overlarge volume, the steering lateral deflection force is overlarge or the pallet truck runs under the bumpy road condition, the movable bearing plate 2 is overturned for 180 degrees outwards relative to the pallet fork main body 1 through the hinge, and therefore the width of the forklift is expanded.
On one hand, a limit structure can be arranged through the hinge to ensure that the movable bearing plate 2 can not rotate any more after being locked by the limit structure after rotating 180 degrees in order to ensure that the movable bearing plate 2 rotates 180 degrees; on one hand, a stop block can be arranged on the movable bearing plate 2 or the through groove 11, so that the movable bearing plate 2 can not rotate any more after rotating 180 degrees due to the limit of the stop block.
In one embodiment, as shown in fig. 4, the fork further comprises a locking mechanism 6 disposed on the inner side wall of the fork main body 1, wherein the locking mechanism 6 comprises two supports 61 disposed on the inner side wall of the fork main body 1 at intervals, and a guide rod 62 disposed on the two supports 61 in a penetrating manner, and the guide rod 62 can slide on the two supports 61 in the direction of the fork main body 1; meanwhile, the lower surface of the movable bearing plate 2 is provided with an ear plate 21 with a through hole, the guide rod 62 can penetrate through the through hole on the ear plate 21, that is, the guide rod 62 can slide in the through hole of the ear plate 21 on the two supports 61 in the direction of the fork main body 1, and when the guide rod 62 slides to the through hole of the ear plate 21 or passes through the through hole, the movable bearing plate 2 is locked and can not be turned over; when the guide rod 62 slides away from the direction of the ear plate 21 and is separated from the through hole of the ear plate 21, the movable bearing plate 2 is released, so that the movable bearing plate can be turned over under the action of external force, the movable bearing plate 2 can be released to be turned over if necessary through the guide rod 62, and the movable bearing plate is locked when the movable bearing plate is not required to be turned over (closed inwards), so that the stability of the pallet fork is improved, and particularly, when the pallet truck is in no load, because no material exists above the movable bearing plate 2, the pallet truck has overlarge steering lateral deflection force or runs under bumpy road conditions, the movable bearing plate 2 can be automatically turned over under the.
In a preferred embodiment, as shown in fig. 5, the locking mechanism 6 further comprises a locking button 63, the locking button 63 is disposed on a side wall of the fork main body 1, the locking button 63 comprises a locking handle 631 and a locking portion 632 connected with the locking handle 631, the locking handle 631 partially protrudes out of the side wall of the fork main body 1, the locking portion 632 is disposed in the side wall of the fork main body 1, and the locking portion 632 comprises two locking pins 6321 which are spaced apart from each other in the length direction of the fork main body 1 and are disposed downward; specifically, a groove is formed on the fork main body 1, the locking handle 631 partially protrudes from the side wall of the fork main body 1 through the groove, and the locking button 63 is lifted and lowered by an external force in a direction perpendicular to the upper surface of the fork main body 1 through the guide post.
The side wall of the fork main body 1 is provided with a guide groove, the guide groove is a cuboid hollow groove, and the length direction of the guide groove is consistent with that of the fork main body 1; as shown in fig. 6 and 7, the guide bar 62 is provided with an adjustment handle 621 extending toward the side wall of the fork main body 1, and an extending end of the adjustment handle 621 is received in the guide groove; the adjustment handle 621 is provided with a groove 622 in the middle portion facing upward (the upper surface of the fork main body 1), the groove 622 being located below the arrangement direction of the lock pin 6321; by moving the adjustment handle 621 and the locking button 63, the two locking pins 6321 can be inserted into the grooves 622 in sequence.
Specifically, when the movable carrying plate 2 needs to be locked, the external force drives the adjusting handle 621 to drive the guide rod 62 to slide along the direction of the fork main body 1, so that the guide rod 62 slides into the through hole of the ear plate 21, at this time, the groove 622 is located below the locking pin 6321 near one side of the ear plate 21, the locking button 63 is pushed to move downwards along the guide column to insert the locking pin 6321 into the groove 622, and the locking mechanism 6 is locked, so that the movable carrying plate 2 is in the locking and retaining state. When the movable bearing plate 2 needs to be unlocked, the locking button 63 is pushed to move upwards along the guide column to separate the locking bolt close to one side of the lug plate 21 from the groove 622, the locking mechanism 6 is released, the external force drives the adjusting handle 621 to drive the guide rod 62 to slide along the direction of the pallet fork main body 1 to enable the guide rod 62 to be away from the through hole of the lug plate 21, when the groove 622 is located below the locking bolt 6321 far away from one side of the lug plate 21, the locking button 63 is pushed to move downwards along the guide column to insert the locking bolt 6321 into the groove 622, and the locking mechanism 6 is locked to enable the movable bearing plate 2 to be in a release holding state. Since the sliding direction of the guide rod 62 is the same as the running direction of the fork, and the guide rod 62 slides freely under the driving of the running inertia force or other external forces, the state of the movable bearing plate 2 cannot be maintained continuously, so that the guide rod 62 is locked or released by moving the adjusting handle 621 and the locking button 63, the state of the movable bearing plate 2 is maintained unchanged, and the stability of the using state of the fork is improved.
As shown in fig. 8 to 16, a first embodiment of the present invention provides a fork for a pallet truck, which comprises a fork main body 1, a movable loading plate 2, two first movable connecting members 3, and two second movable connecting members 4, wherein the fork tip of the fork is provided with a load-bearing wheel 5.
As shown in fig. 8 and 9, a through groove 11 extending along the width direction of the fork main body 1 is formed on the fork main body 1, and the through groove 11 is located at the middle of the length direction of the fork main body 1; the two second movable connecting pieces 4 are respectively arranged on two side surfaces of the through groove 11; the movable bearing plate 2 is arranged between the two second movable connecting pieces 4, and two ends of one side edge of the movable bearing plate 2 are movably connected with the two second movable connecting pieces 4 through the two first movable connecting pieces 3 respectively; wherein, one side of the movable bearing plate 2 is the side of the movable bearing plate 2 in the length direction of the fork main body 1.
Preferably, the first movable connecting part 3 is a hinge, and two ends of one side of the movable bearing plate 2 are movably connected with the two second movable connecting parts 4 through the two hinges respectively. As shown in fig. 10, the movable carrying plate can be opened outwards or closed inwards around the first movable connecting piece, specifically, the movable carrying plate 2 can be rotated 180 degrees around the hinge, and the rotation axis of the movable carrying plate is consistent with the length direction of the fork main body; when the pallet truck bears the materials with the overlarge volume, the steering lateral deflection force is overlarge or the pallet truck runs under the bumpy road condition, the movable bearing plate 2 is overturned for 180 degrees outwards relative to the pallet fork main body 1 through the hinge, and therefore the width of the forklift is expanded.
On one hand, a limit structure can be arranged through the hinge to ensure that the movable bearing plate 2 can not rotate any more after being locked by the limit structure after rotating 180 degrees in order to ensure that the movable bearing plate 2 rotates 180 degrees; on one hand, a stop block can be arranged on the movable bearing plate 2 or the through groove 11, so that the movable bearing plate 2 can not rotate any more after rotating 180 degrees due to the limit of the stop block.
In one embodiment, as shown in fig. 11 and 12, the second movable connecting member 4 is a three-section slide rail, and includes a fixed rail 41, a transfer rail 42 embedded in the fixed rail 41, and a movable rail 43 embedded in the transfer rail 42, wherein the movable rail 43 and the transfer rail 42 can reciprocate along the width direction of the fork main body 1 relative to the fixed rail 41; the other side of the fixed rail 41 is fixedly connected with the side surface of the through groove 11, and the other side of the movable rail 43 is connected with the movable bearing plate 2.
Preferably, the movable rail 43 comprises a vertical section extending downward from the top of the side surface of the through slot 11 and a horizontal section extending from the bottom end of the vertical section along at least part of the bottom surface of the through slot 11, the movable carrying plate 2 is arranged on the horizontal section, and two ends of one side edge of the movable carrying plate 2 are movably connected with the vertical section through the two hinges respectively. In this embodiment, under the condition that the movable loading plate 2 is not turned over by 180 degrees, the movable loading plate 2 moves towards the inner side of the fork through the second movable connecting member 4, i.e. the movement of the three-section slide rail, so as to expand the inward bearing area of the fork, when the pallet truck is used, the area between the forks is partially covered by the movable loading plate 2, and the function of the fork for bearing scattered articles is increased.
In a preferred embodiment, as shown in fig. 13, the fork further comprises a locking mechanism 6 disposed on the inner side wall of the fork main body 1, wherein the locking mechanism 6 comprises two supports 61 disposed on the inner side wall of the fork main body 1 at intervals, and a guide rod 62 disposed on the two supports 61; the guide rods 62 are slidable on the two seats 61 in the direction of the fork body 1; meanwhile, through holes are respectively formed in the fixed rail 41, the switching rail 42 and the movable rail 43, the lower surface of the movable bearing plate 2 is provided with an ear plate 21 with a through hole, the through holes in the fixed rail 41, the switching rail 42, the movable rail 43 and the ear plate 21 are located on the same axis, and the guide rod 62 can penetrate through the through holes in the fixed rail 41, the switching rail 42, the movable rail 43 and the ear plate 21, that is, the guide rod 62 can slide in the through holes in the fixed rail 41, the switching rail 42, the movable rail 43 and the ear plate 21 in the direction of the fork main body 1 on the two supports 61, and the guide rod 62 sequentially enters the through holes in the fixed rail 41, the switching rail 42, the movable rail 43 and the ear plate 21 in the sliding direction; when the guide rod 62 slides to the through holes of the fixed rail 41, the adapting rail 42 and the movable rail 43, the movable bearing plate 2 cannot move to the inner side of the fork; when the guide rod 62 slides to or passes through the through hole of the ear plate 21 (the guide rod 62 remains to pass through the through holes of the fixed rail 41, the adapting rail 42 and the movable rail 43), the movable carrier plate 2 is locked and can not be turned over and move to the inner side of the fork; when the guide rod 62 slides away from the through holes of the fixed rail 41, the transfer rail 42, the movable rail 43 and the ear plate 21, the movable bearing plate 2 is in a release state, and at this time, the movable bearing plate 2 can turn over and move towards the inner side of the fork, and is preferentially driven by external force to move towards the inner side of the fork; the guide rods 62 can release the movable bearing plate 2 to realize overturning or move towards the inner side of the fork when necessary, and the movable bearing plate is locked when not needed, so that the stability of the fork is improved.
In a preferred embodiment, as shown in fig. 14, the locking mechanism 6 further comprises a locking button 63, the locking button 63 is disposed on a side wall of the fork main body 1, the locking button 63 comprises a locking handle 631 and a locking portion 632 connected with the locking handle 631, the locking handle 631 partially protrudes from the side wall of the fork main body 1, the locking portion 632 is disposed in the side wall of the fork main body 1, and the locking portion 632 comprises three locking pins 6321 disposed along the length direction of the fork main body 1 and at a distance downward; specifically, a groove is formed on the fork main body 1, the locking handle 631 partially protrudes from the side wall of the fork main body 1 through the groove, and the locking button 63 is lifted and lowered by an external force in a direction perpendicular to the upper surface of the fork main body 1 through the guide post.
The side wall of the fork main body 1 is provided with a guide groove, the guide groove is a cuboid hollow groove, and the length direction of the guide groove is consistent with that of the fork main body 1; as shown in fig. 15 and 16, the guide bar 62 is provided with an adjustment handle 621 extending toward the side wall of the fork main body 1, and an extending end of the adjustment handle 621 is received in the guide groove; the adjustment handle 621 is provided with a groove 622 in the middle portion facing upward (the upper surface of the fork main body 1), the groove 622 being located below the arrangement direction of the lock pin 6321; by moving the adjustment handle 621 and the locking button 63, the three locking pins 6321 can be inserted into the grooves 622 in sequence.
When the movable bearing plate 2 needs to be locked, an external force drives the adjusting handle 621 to drive the guide rod 62 to slide along the direction of the fork main body 1, so that the guide rod 62 sequentially slides into the through holes of the fixed rail 41, the switching rail 42, the movable rail 43 and the ear plate 21, at this time, the groove 622 is located below the locking pin 6321 close to one side of the ear plate 21, the locking button 63 is pushed to move downwards along the guide column, the locking pin 6321 is inserted into the groove 622, the locking mechanism 6 is locked, so that the movable bearing plate 2 is in a locking and retaining state, that is, the movable bearing plate 2 cannot be turned over or move towards the inner side of the fork.
When the movable bearing plate 2 needs to be unlocked and turned over, the locking button 63 is pushed to move upwards along the guide column to separate the locking bolt close to one side of the lug plate 21 from the groove 622, the locking mechanism 6 is released, the adjusting handle 621 is driven by external force to drive the guide rod 62 to slide along the direction of the fork main body 1 to enable the guide rod 62 to be away from the through hole of the lug plate 21, the groove 622 is located below the locking bolt 6321 far away from one side of the lug plate 21, the locking button 63 is pushed to move downwards along the guide column to insert the locking bolt 6321 into the groove 622, the locking mechanism 6 is locked, the movable bearing plate 2 is turned over or is moved to the inner side of the fork to release the holding state, and the movable bearing plate 2 is driven by the external force preferentially to move towards.
When the movable bearing plate 2 needs to be unlocked and the fork needs to be moved to the inner side, the locking button 63 is pushed to move upwards along the guide column to separate the locking bolt close to one side of the lug plate 21 from the groove 622, the locking mechanism 6 is released, the adjusting handle 621 is driven by external force to drive the guide rod 62 to slide along the direction of the fork main body 1 to enable the guide rod 62 to be away from the through hole of the lug plate 21, the groove 622 is located below the middle locking bolt 6321, the locking button 63 is pushed to move downwards along the guide column to insert the locking bolt 6321 into the groove 622, and the locking mechanism 6 is locked to enable the movable bearing plate 2 to be in a turnover release holding state.
In order to overcome the problem that the sliding direction of the guide rod 62 is the same as the running direction of the fork, the guide rod 62 slides freely under the driving of the running inertia force or other external forces, so that the state of the movable bearing plate 2 cannot be kept continuously, the guide rod 62 is locked or released by adopting the movable adjusting handle 621 and the locking button 63, the state of the movable bearing plate 2 is kept unchanged, and the stability of the using state of the fork is improved.
The fork for the pallet truck comprises a fork main body 1, a movable loading plate 2 and two first movable connecting pieces 3; a through groove 11 extending along the width direction of the fork main body 1 is formed on the fork main body 1, a movable bearing plate 2 is accommodated in the through groove 11, and two ends of one side edge of the movable bearing plate 2 are movably connected with the fork main body 1 through the two first movable connecting pieces 3 respectively; the movable bearing plate 2 can rotate 180 degrees around the first movable connecting piece 3 on a plane perpendicular to the length direction of the fork main body 1, when the volume of the loaded materials is too large, the movable bearing plate 2 is turned 180 degrees, the width of the fork is increased, and even if the pallet truck is turned to cause overlarge lateral deflection force or runs on bumpy road conditions, the gravity center of the materials is still in the bearing range due to the increase of the width range of the fork, so that the materials cannot roll over laterally.
On the other hand, the utility model discloses the third embodiment provides a pallet truck, including pallet truck main part and two parallel settings the fork, particularly, two parallel settings the fork is the structure of relative setting, and it realizes the upset or to the opposite direction of the inboard removal of fork promptly. Preferably, as shown in fig. 17 and 18, the movable carrying plate 2, in which the two forks are arranged, is turned to face the opposite direction of the opposite fork (the movable carrying plate 2 is turned over); the movable carrying plate 2, on which the two forks are arranged, is moved towards the inner sides of the forks in the same direction opposite to the forks (the movable carrying plate 2 slides).
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A pallet fork is used for a pallet truck and is characterized by comprising a pallet fork main body, a movable loading plate, two first movable connecting pieces and two second movable connecting pieces; a through groove extending along the width direction of the fork main body is formed in the fork main body, and the through groove is positioned in the middle of the length direction of the fork main body; the two second movable connecting pieces are respectively arranged on two side surfaces of the through groove; the movable bearing plate is arranged between the two second movable connecting pieces, and two ends of one side edge of the movable bearing plate are movably connected with the two second movable connecting pieces through the two first movable connecting pieces respectively; the movable bearing plate can be unfolded outwards or closed inwards around the first movable connecting piece;
the second movable connecting piece is a three-section type sliding rail and comprises a fixed rail, a transfer rail embedded into the fixed rail and a movable rail embedded into the transfer rail, wherein the movable rail and the transfer rail can reciprocate relative to the fixed rail along the width direction of the pallet fork main body; the other side of the fixed rail is fixedly connected with the side surface of the through groove, and the other side of the movable rail is connected with the movable bearing plate;
the movable bearing plate can move towards the inner side of the fork through the second movable connecting piece under the condition that the movable bearing plate is not turned over by 180 degrees so as to expand the inward bearing area of the fork, and when the movable bearing plate is used for a pallet truck, the area between the forks is partially covered by the movable bearing plate.
2. The fork of claim 1, wherein the first movable connecting member is a hinge, and two ends of one side of the movable carrier plate are movably connected to the movable rail through the two hinges, respectively.
3. The fork of claim 2, wherein the movable rail comprises a vertical section extending downward from the top of the side surface of the through slot and a horizontal section extending from the bottom end of the vertical section along at least a portion of the bottom surface of the through slot, the movable carrier plate is disposed on the horizontal section, and two ends of one side of the movable carrier plate are movably connected to the vertical section through the two hinges, respectively.
4. The fork of claim 1, further comprising a locking mechanism disposed on an inner sidewall of the fork body, the locking mechanism including two abutments spaced apart on the inner sidewall of the fork body and a guide rod passing through the two abutments; be equipped with the through-hole on fixed rail, switching rail and the movable rail respectively, the lower surface of activity loading board is provided with the otic placode that has the through-hole, through-hole on fixed rail, switching rail, movable rail and the otic placode is located the same axis, just the guide arm can run through the through-hole on fixed rail, switching rail, movable rail and the otic placode.
5. The fork of claim 4, wherein the locking mechanism further comprises a locking button disposed on a side wall of the fork body, the locking button including a locking handle protruding from the side wall of the fork body and a locking portion coupled to the locking handle, the locking portion being disposed within the side wall of the fork body, the locking portion including three locking pins spaced apart along a length of the fork body and disposed downwardly; the side wall of the fork main body is provided with a guide groove, the guide rod is provided with an adjusting handle extending towards the side wall of the fork main body, and the extending end of the adjusting handle is accommodated in the guide groove; the middle part of the adjusting handle facing upwards is provided with a groove, and the groove is positioned below the arrangement direction of the locking pin; by moving the adjustment handle and the locking button, the three locking pins can be inserted into the grooves in sequence.
6. A pallet truck comprising a pallet truck body and two forks as claimed in any one of claims 1 to 5 arranged in parallel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710660111.9A CN109384174B (en) | 2017-08-04 | 2017-08-04 | Pallet fork and pallet truck with pallet fork |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710660111.9A CN109384174B (en) | 2017-08-04 | 2017-08-04 | Pallet fork and pallet truck with pallet fork |
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| CN109384174A CN109384174A (en) | 2019-02-26 |
| CN109384174B true CN109384174B (en) | 2020-07-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110481612A (en) * | 2019-08-31 | 2019-11-22 | 贵州大学 | A kind of load carrier of underground drilling machine carrier |
| CN115557130A (en) * | 2021-07-01 | 2023-01-03 | 深圳市海柔创新科技有限公司 | Fork components, handling robots and storage systems |
| CN114890344A (en) | 2022-04-24 | 2022-08-12 | 宁波如意股份有限公司 | Folding type manual pallet truck |
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| CN109384174A (en) | 2019-02-26 |
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