CN221217045U - Anti-slip fork device and electric pallet truck - Google Patents
Anti-slip fork device and electric pallet truck Download PDFInfo
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- CN221217045U CN221217045U CN202323117127.5U CN202323117127U CN221217045U CN 221217045 U CN221217045 U CN 221217045U CN 202323117127 U CN202323117127 U CN 202323117127U CN 221217045 U CN221217045 U CN 221217045U
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- fork
- limiting piece
- pallet
- limiting
- push rod
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- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 230000033001 locomotion Effects 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 5
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model discloses an anti-slipping fork device and an electric pallet truck, wherein the fork device comprises a fork of the pallet truck and a push rod which is arranged in the fork in a manner of moving back and forth; the pallet fork is movably connected with a limiting piece used for limiting the pallet placed on the pallet fork to slide forwards, the push rod is provided with a transmission structure, the transmission structure drives the limiting piece to move to a first position for limiting the pallet to slide forwards along with the forward movement of the push rod, the transmission structure releases the limiting piece along with the backward movement of the push rod so as to enable the limiting piece to reset to a second position for releasing the limit on the pallet, or the transmission structure drives the limiting piece to move to a second position for releasing the limit on the pallet along with the backward movement of the push rod. The utility model can prevent the pallet from sliding forward on the pallet fork under the working conditions of sudden braking, downhill and the like, thereby reducing potential safety hazards.
Description
Technical Field
The utility model relates to the technical field of forklifts, in particular to an anti-slipping fork device and an electric pallet truck.
Background
The pallet truck is a light and small-sized transportation device, and is widely applied to loading and unloading of a receiving and dispatching platform or transportation operation without stacking among various procedures in a workshop. The pallet truck is provided with two forks which can be inserted into the free fork holes of the pallet. The front ends of two forks of the pallet truck are respectively provided with travelling wheels (also called front wheel assemblies) for supporting the weight of pallet cargoes. The two forks of the pallet truck can be lifted, and when the forks are lifted, the pallet or the container can leave the ground, so that the pallet or the container can be conveniently driven by manpower or electric power to walk. The lifting of the fork is realized by the cooperation of an oil cylinder, a lifting shaft, a front wheel assembly, a push rod and the like of the pallet truck, and the push rod and the like are arranged in the fork in a manner of moving back and forth. The pallet truck is limited in structure and space reasons, and two forks of the pallet truck cannot be inclined backwards, and when in operation, certain deformation exists in the fork bearing weight, so that the pallet and the goods on the pallet truck incline downwards by a certain angle, and when the pallet truck encounters a downward slope or sudden braking in the running process, the friction force between the pallet and the fork surface is small, and the like, can possibly lead the pallet and the goods on the pallet to slide off the forks, and the pallet and the goods on the pallet are seriously possibly caused to directly fall off, so that a larger safety accident is caused.
Disclosure of utility model
The utility model provides an anti-slipping fork device and an electric pallet truck, which aim at the technical problems in the prior art, and can prevent pallets from slipping off from forks.
The technical scheme adopted for solving the technical problems is as follows: an anti-slip fork device comprises a fork of a pallet truck and a push rod which is arranged in the fork in a back-and-forth movable manner; the pallet fork is movably connected with a limiting piece used for limiting the pallet placed on the pallet fork to slide forwards, the push rod is provided with a transmission structure, the transmission structure drives the limiting piece to move to a first position for limiting the pallet to slide forwards along with the forward movement of the push rod, the transmission structure releases the limiting piece along with the backward movement of the push rod so as to enable the limiting piece to return to a second position for releasing the limit on the pallet, or the transmission structure drives the limiting piece to move to a second position for releasing the limit on the pallet along with the backward movement of the push rod.
Further, the limiting piece is rotationally connected to the inside of the fork, the limiting piece is switched to the first position or the second position through rotation, the limiting piece is provided with a stopping portion for stopping the tray from sliding off, the stopping portion stretches out of the fork in the first position, and the stopping portion stretches back into the fork in the second position.
Further, the rotation axis of the limiting part is located in the up-down direction, and the stopping part enters and exits the fork from the side wall of the fork in the left-right direction, so that the tray pier at the bottom of the tray is stopped when the tray is in the first position.
Further, the limiting piece is rotatably connected to the rear portion of the fork, and the stopping portion enters and exits the fork from an opening formed in the side wall of the inner side of the fork.
Further, the transmission structure is a pushing block arranged on the push rod, the pushing block pushes the limiting piece to rotate to the first position along with the forward movement of the push rod, the pushing block releases the limiting piece along with the backward movement of the push rod, and the limiting piece rotates to the second position under the action of a reset piece arranged between the limiting piece and the fork.
Further, the limiting piece is provided with a wedge block matched with the pushing piece, so that the pushing piece is in sliding fit with the inclined plane of the wedge block in the process of pushing the limiting piece; the reset piece is an elastic piece.
Further, the limiting piece is matched with a limiting structure at the second position and the fork so as to limit the limiting piece to continuously rotate along the direction of rotating to the second position; the limiting structure comprises a clamping hook arranged on the limiting piece and a limiting pin fixed on the fork, and the clamping hook is clamped on the limiting pin at the second position.
Further, the limiting piece is L-shaped, one end of the limiting piece faces backwards and is rotatably connected to the fork, and the other end of the limiting piece forms the stop portion.
Further, the number of the forks is two, and the two forks are arranged in parallel left and right.
The utility model further provides an electric pallet truck, which comprises the anti-slip pallet fork device.
Compared with the prior art, the utility model has the following beneficial effects:
1. Because the fork is movably connected with the limiting piece, the push rod is provided with the transmission structure, the transmission structure can drive the limiting piece to move to a first position for limiting the tray to slide forward along with the forward movement of the push rod, and can release the limiting piece along with the backward movement of the push rod to drive the limiting piece to move to a second position for releasing the limit on the tray, the tray can be stopped by the limiting piece when the fork is lifted, and the tray can be prevented from sliding forward on the fork under the working conditions of sudden braking, downhill and the like, so that the potential safety hazard is reduced. Particularly, the utility model utilizes the motion track of the push rod of the existing pallet truck along the front-back direction to drive the limiting piece to move, and does not need to additionally set driving force, thereby leading the whole structure to be simpler and having low cost.
2. The limiting piece is driven by the pushing block on the push rod and is driven to reset by the reset piece matched with the fork, so that the matched structure (namely the transmission structure) between the push rod and the limiting piece is simpler, the assembly is more convenient, and the occurrence of faults is reduced.
The utility model is described in further detail below with reference to the drawings and examples; the anti-slip fork device and the electric pallet truck of the utility model are not limited to the embodiments.
Drawings
FIG. 1 is a schematic perspective view of the present utility model (partially hidden);
FIG. 2 is a cross-sectional view (top view) of the present utility model with the stop member in a second position;
FIG. 3 is a cross-sectional view (top view) of the present utility model with the stop member in a first position;
FIG. 4 is an enlarged partial schematic view of the present utility model with the stop member in the second position;
FIG. 5 is an enlarged partial schematic view of the present utility model with the stop member in the first position;
FIG. 6 is a schematic diagram of a second perspective view of the present utility model;
In the figure, 1, a fork, 11, an opening, 12, a limiting pin, 13, a second strut, 2, a push rod, 21, a push block, 3, a limiting piece, 31, a stop part, 32, a wedge block, 33, a clamping hook, 34, a first strut, 4, a frame, 5, an oil cylinder, 6, a battery box, 7, a lifting shaft, 8 and a front wheel assembly.
Detailed Description
In the present disclosure, the terms "first," "second," and the like are used merely to distinguish between similar objects, and are not used to describe a particular sequence or order, nor are they to be construed as indicating or implying a relative importance. In the description, directions or positional relationships indicated by "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc. are used for convenience of description of the present utility model based on the directions or positional relationships shown in the drawings, and are not intended to indicate or imply that the apparatus must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the scope of protection of the present utility model. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present utility model, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and the like are to be construed broadly, and for example, "connected," may be either fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or may be in communication with each other between two elements, as would be understood by one of ordinary skill in the art, and the terms are specifically defined in the present utility model.
Referring to fig. 1-6, the anti-slip fork device of the present utility model includes a fork 1 of a pallet truck and a push rod 2 movably disposed in the fork 1 back and forth, wherein the fork 1 is movably connected with a limiting member 3 for limiting forward sliding of a pallet placed on the fork 1, the push rod 2 is provided with a transmission structure, the transmission structure drives the limiting member 3 to move to a first position for limiting forward sliding of the pallet along with forward movement of the push rod 2, and the transmission structure releases the limiting member 3 along with backward movement of the push rod 2 so as to reset the limiting member 3 to a second position for releasing the limiting of the pallet. In other embodiments, the drive structure moves the stop 3 to a second position to release the stop of the tray as the push rod 2 moves rearward.
Further, the limiting piece 3 is rotatably connected inside the pallet fork 1, so that the limiting piece 3 is switched to the first position or the second position through rotation. The stop 3 has a stop 31 for stopping the pallet from slipping off, which stop 31 in the first position extends out of the fork 1 and in the second position the stop 31 is retracted into the fork 1. In the present embodiment, the rotation axis of the stopper 3 is located in the up-down direction, and the stopper 31 is moved in and out of the inside of the fork 1 from the side wall of the fork 1 in the left-right direction to stop the pallet pier at the bottom of the pallet at the first position. In other embodiments, the rotation axis of the stopper 3 is located in a horizontal direction, specifically in a left-right direction, and the stopper 31 of the stopper 3 enters and exits the fork 1 from the top surface of the fork 1.
Specifically, the stopper 3 is rotatably connected to the rear portion of the fork 1, and the stopper 31 is moved into and out of the fork 1 through an opening 11 provided in the side wall of the fork 1 on the inner side. The number of the forks 1 is two, and the two forks 1 are arranged in parallel left and right. Thus, the stop portions 31 of the stop members 3 of the two forks 1 respectively project relatively inwardly in the stop state. The stopper 3 is substantially L-shaped, and has one end portion directed rearward and rotatably connected to the fork 1, and the other end portion thereof constitutes a stopper 31.
As a preferable structure, the transmission structure is a pushing block 21 arranged on the push rod 2, the pushing block 21 pushes the limiting piece 3 to rotate to the first position along with the forward movement of the push rod 2, the pushing block 21 releases the limiting piece 3 along with the backward movement of the push rod 2, and the limiting piece 3 rotates to the second position under the action of a reset piece arranged between the limiting piece and the fork 1. In particular, stop 3 is provided with wedge 32 that cooperates with push block 21, so that push block 21 is in sliding engagement with the inclined surface of wedge 32 during the pushing of stop 3. Wedge 32 is located specifically outside one side root of stop 3. The resetting piece is an elastic piece (not shown in the figure), in particular a spiral spring, and two ends of the resetting piece are respectively sleeved on a first support post 34 arranged on the limiting piece 3 and a second support post 13 correspondingly arranged on the pallet fork 1. In other embodiments, the return member is a torsion spring or the like.
Further, the limiting member 3 is matched with the fork 1 at the second position to limit the limiting member 3 to rotate continuously in the direction from rotating to the second position. The limiting structure specifically comprises a clamping hook 33 arranged on the limiting piece 3 and a limiting pin 12 fixed on the fork 1, and in the second position, the clamping hook 33 is clamped on the limiting pin 12, so that the limiting piece 3 is prevented from being reset excessively. The hook 33 is specifically disposed on the outer side of the other side of the limiting member 3.
In the initial state of the utility model, as shown in fig. 2 and 4, at this time, the pushing block 21 is located behind the wedge block 32 of the limiting element 3, and the limiting element 3 is in the second position under the action of the elastic element, so that the stop part 31 of the limiting element 3 is retracted into the pallet fork 1. After the pallet is placed on the pallet fork 1, when the pallet fork 1 needs to be lifted, the push rod 2 moves forwards, so that the push block 21 gradually contacts the wedge block 32 of the limiting piece 3, and pushes the limiting piece 3 to rotate towards the first position, so that the stop part 31 extends out of the pallet fork 1, as shown in fig. 3 and 5, at the moment, the push block 21 pushes against the wedge block 32 to limit the reverse rotation of the limiting piece 3, and the elastic piece is in a compressed state. After the stopping part 31 extends out of the pallet fork 1, the pallet pier at the bottom of the pallet can be stopped, so that the pallet is limited to slide forward. When the fork 1 needs to be lowered, the push rod 2 moves backwards, so that the push block 21 moves backwards and gradually releases the limiting piece 3, the limiting piece 3 is reset to the second position under the action of the restoring force of the elastic piece, and the stop part 31 is retracted into the fork 1 to release the limitation of the tray.
Therefore, the utility model can prevent the pallet truck from sliding forward on the pallet fork 1 under the working conditions of sudden braking, downhill and the like, thereby reducing the potential safety hazard. Particularly, the utility model utilizes the motion track of the push rod 2 of the existing pallet truck along the front-back direction to drive the limiting piece 3 to move, and does not need to additionally set driving force, thereby leading the whole structure to be simpler and having low cost.
Referring to fig. 1 to 6, an electric pallet truck according to the present utility model includes an anti-slip fork 1 device according to the present utility model as described above.
In this embodiment, the utility model further comprises an oil cylinder 5, a frame 4, a battery box 6 and a lifting shaft 7, wherein the front wheel assembly 8 is arranged at the front end of the fork 1, the oil cylinder 5 is respectively connected with the frame 4 and the battery box 6, the rear end of the push rod 2 is movably connected with the lifting shaft 7, and the front end of the push rod 2 is movably connected with the front wheel assembly 8. When the oil cylinder 5 lifts and pushes the battery box 6 to move upwards, the battery box 6 drives the lifting shaft 7 to rotate anticlockwise, and the push rod 2 is driven to move forwards by the rotation of the lifting shaft 7, so that the front wheel assembly 8 is driven to rotate upwards, and the fork 1 is lifted. When the oil cylinder 5 retracts and drives the battery box 6 to move downwards, the battery box 6 drives the lifting shaft 7 to rotate clockwise, and the push rod 2 moves backwards under the drive of the rotation of the lifting shaft 7, so that the front wheel assembly 8 is driven to rotate downwards, and the fork 1 descends.
The skid-proof fork device and the electric pallet truck are not related to the same parts as or can be realized by adopting the prior art.
The above embodiment is only used for further explaining an anti-slipping fork device and an electric pallet truck of the present utility model, but the present utility model is not limited to the embodiment, and any simple modification, equivalent variation and modification of the above embodiment according to the technical substance of the present utility model falls within the scope of the technical solution of the present utility model.
Claims (10)
1. An anti-slip fork device comprises a fork of a pallet truck and a push rod which is arranged in the fork in a back-and-forth movable manner; the method is characterized in that: the pallet fork is movably connected with a limiting piece used for limiting the pallet placed on the pallet fork to slide forwards, the push rod is provided with a transmission structure, the transmission structure drives the limiting piece to move to a first position for limiting the pallet to slide forwards along with the forward movement of the push rod, the transmission structure releases the limiting piece along with the backward movement of the push rod so as to enable the limiting piece to reset to a second position for releasing the limit on the pallet, or the transmission structure drives the limiting piece to move to a second position for releasing the limit on the pallet along with the backward movement of the push rod.
2. The slip resistant pallet fork assembly of claim 1 wherein: the limiting piece is rotationally connected to the inside of the fork, the limiting piece is switched to the first position or the second position through rotation, the limiting piece is provided with a stopping part for stopping the tray from sliding off, the stopping part stretches out of the fork in the first position, and the stopping part stretches back into the fork in the second position.
3. The slip resistant pallet fork assembly of claim 2 wherein: the rotation axis of the limiting piece is located in the up-down direction, and the stopping portion enters and exits the fork from the side wall of the fork in the left-right direction, so that the tray pier at the bottom of the tray is stopped when the tray is in the first position.
4. A slip resistant pallet fork assembly as defined in claim 3 wherein: the limiting piece is rotationally connected to the rear portion of the fork, and the stopping portion enters and exits the fork from an opening formed in the side wall of the inner side of the fork.
5. The slip resistant pallet fork arrangement of any one of claims 2-4 wherein: the transmission structure is a pushing block arranged on the push rod, the pushing block pushes the limiting piece to rotate to the first position along with the forward movement of the push rod, the pushing block releases the limiting piece along with the backward movement of the push rod, and the limiting piece rotates to the second position under the action of a reset piece arranged between the limiting piece and the fork.
6. The slip resistant pallet fork assembly of claim 5 wherein: the limiting piece is provided with a wedge block matched with the pushing piece, so that the pushing piece is in sliding fit with the inclined plane of the wedge block in the process of pushing the limiting piece; the reset piece is an elastic piece.
7. The slip resistant pallet fork assembly of claim 2 wherein: the limiting piece is matched with the fork at the second position to limit the limiting piece to rotate continuously along the direction of rotating to the second position; the limiting structure comprises a clamping hook arranged on the limiting piece and a limiting pin fixed on the fork, and the clamping hook is clamped on the limiting pin at the second position.
8. The slip resistant pallet fork assembly as recited in claim 3 or 4 wherein: the limiting piece is L-shaped, one end part of the limiting piece faces backwards and is rotationally connected to the fork, and the other end part of the limiting piece forms the stop part.
9. The slip resistant pallet fork assembly of claim 1 wherein: the number of the forks is two, and the two forks are arranged in parallel left and right.
10. An electric pallet truck which is characterized in that: a pallet fork arrangement comprising a slip resistant device according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323117127.5U CN221217045U (en) | 2023-11-17 | 2023-11-17 | Anti-slip fork device and electric pallet truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323117127.5U CN221217045U (en) | 2023-11-17 | 2023-11-17 | Anti-slip fork device and electric pallet truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221217045U true CN221217045U (en) | 2024-06-25 |
Family
ID=91570114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323117127.5U Active CN221217045U (en) | 2023-11-17 | 2023-11-17 | Anti-slip fork device and electric pallet truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221217045U (en) |
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2023
- 2023-11-17 CN CN202323117127.5U patent/CN221217045U/en active Active
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