Ejector for forklift, pallet fork device and forklift

Abstract

The utility model relates to an ejector for a forklift, a pallet fork device and the forklift. The ejector comprises an ejecting frame, a first driving device and a goods pressing frame. The push-out frame is vertically arranged on the upper side of a pallet fork of the forklift. The first driving device is connected between the pallet fork and the push-out frame and is configured to push and pull the push-out frame in the front-back direction. The goods pressing frame is horizontally arranged on the front side of the push-out frame. The goods pressing frame is installed on the push-out frame in an up-down adjustable mode. According to the ejector, manpower can be saved, the carrying efficiency can be improved, the stability of cargoes can be improved, and the effect of preventing the cargoes from toppling and falling in the transportation process is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of forklifts, in particular to an ejector for a forklift, a cargo fork device and a forklift. Background Art

[0002] Truck-mounted forklifts are industrial lifting equipment used to transport cargo. Typically, they have a loading fork mounted on the front of the truck-mounted forklift. When using a truck-mounted forklift to transport bagged cargo (such as cement, grain, and fertilizer), the cargo must first be stacked onto the forks, then the truck-mounted forklift is moved to the unloading position, and the cargo must then be manually removed from the forks. This is labor-intensive and inefficient.

[0003] On the other hand, bagged goods have poor shape stability. If they are stacked in large layers, they are prone to falling off the forks, further reducing handling efficiency. Utility Model Content

[0004] In view of the above problems, the present invention proposes an ejector for a vehicle-mounted forklift that at least partially solves the above problems, aiming to solve the problem of low efficiency of conventional forklifts when transporting bagged goods.

[0005] Specifically, the present invention provides the following technical solutions:

[0006] A pusher for a forklift comprises a pusher frame, a first driving device and a pressurizing rack.

[0007] The push-out frame is vertically disposed above the forks of the forklift. The first drive device is connected between the forks and the push-out frame and is configured to push and pull the push-out frame forward and backward. The pressure shelf is horizontally disposed in front of the push-out frame. The pressure shelf is vertically adjustable on the push-out frame.

[0008] Optionally, the press rack is a telescopic rack, so that the length of the press rack along the front and back can be adjusted by telescoping.

[0009] Optionally, a front baffle extending downward is fixedly connected to the front end of the press rack.

[0010] Optionally, the width of the pallet along the left and right sides is greater than the width of the fork.

[0011] Optionally, the left and right widths of the front baffle are greater than the width of the fork.

[0012] Optionally, the press rack includes a rear press rack, a front press rack and a second driving device.

[0013] The rear pressing frame is connected to the pushing frame in an up-and-down sliding manner via a lifting column. The front pressing frame is connected to the front side of the rear pressing frame in a slidable manner in a front-and-back direction. The second driving device is connected between the rear pressing frame and the front pressing frame, and the second driving device is configured to push and pull the front pressing frame in a front-and-back direction.

[0014] Optionally, vertical slide rails are respectively provided at the left and right ends of the push-out rack.

[0015] There are two lifting columns, which are respectively connected to the left and right ends of the rear pressure frame. The two lifting columns are slidably connected to the two slide rails through rollers.

[0016] A third driving device is connected between the pushing frame and the rear pressing frame, and the third driving device is configured to push and pull the rear pressing frame up and down.

[0017] Optionally, the first driving device comprises a horizontal scissor-type mechanism, the rear end of which is connected to the fork, and the front end of which is connected to the push-out frame.

[0018] The horizontal scissor-fork mechanism is a multi-stage scissor-fork mechanism. When the horizontal scissor-fork mechanism is fully unfolded, the push-out frame is located in front of the front end of the fork.

[0019] Optionally, the fork includes two fork tines spaced apart from each other on the left and right sides.

[0020] The lower end of the ejection frame protrudes downward to form an ejection block, the ejection block is located between the two fork teeth, and the bottom end of the ejection block is located between the top end and the bottom end of the fork teeth.

[0021] On the other hand, the present invention further provides a fork device for a forklift, which includes a fork and the above-mentioned ejector.

[0022] On the other hand, the present invention further provides a forklift, which includes a vehicle body and the fork device described above, wherein the fork device is detachably fixedly connected to the front side of the vehicle body.

[0023] Optionally, the forklift is a truck-mounted forklift.

[0024] The ejector for a forklift provided in this application is configured with an ejector frame and a first drive device on the upper side of the forks. When unloading cargo, the first drive device can push the ejector frame forward, pushing the cargo on the forks out and unloading it into the unloading area, thereby saving manpower and improving handling efficiency. Furthermore, by providing a pressure shelf, when stacking multiple layers of bagged cargo on the forks, the pressure shelf can move downward to squeeze and secure the cargo at its upper end, thereby improving cargo stability and preventing it from tipping over during transportation.

[0025] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0027] Figure 1 is a schematic structural diagram of a forklift according to one embodiment of the present utility model;

[0028] Figure 2 is a schematic structural diagram of a fork device according to one embodiment of the utility model;

[0029] Figure 3 1 is a schematic structural diagram of an ejector according to an embodiment of the present utility model;

[0030] Figure 4 1 is a schematic structural diagram of an ejector according to an embodiment of the present utility model;

[0031] Figure 5 is a schematic top view of a forklift according to one embodiment of the present invention;

[0032] Figure 6 is a schematic side view of a fork device according to one embodiment of the present invention;

[0033] Figure 7 is a schematic side view of a forklift in a transporting state according to an embodiment of the present invention;

[0034] Figure 8 It is a schematic side view of a forklift in an unloading state according to one embodiment of the present invention.

[0035] Reference Signs List

[0036] 100, forklift; 200, fork assembly; 300, ejector; 310, ejector frame; 312, slide rail; 314, ejector block; 316, ejector plate; 320, first drive device; 321, horizontal scissors mechanism; 322, driver; 330, pressure rack; 331, rear pressure rack; 332, front pressure rack; 333, second drive device; 340, front stop frame; 351, lifting column; 353, third drive device; 400, fork; 410, fork tines; 420, mounting frame; 500, vehicle body. DETAILED DESCRIPTION

[0037] Refer to the following Figures 1 to 8 To describe the pusher, fork device and forklift for a forklift of the embodiment of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0038] Unless otherwise expressly specified or limited, terms such as "disposed," "installed," "connected," "connected," "fixed," and "coupled" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two elements or interaction between two elements, unless otherwise expressly limited. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0039] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. That is, in the description of this embodiment, the first feature being "above," "above," and "above" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below," "below," or "below" the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0040] In the description of the present embodiment, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.

[0041] Figure 1This is a schematic structural diagram of a forklift according to an embodiment of the present invention, please refer to Figure 1 , and combined with Figure 2-8 The present invention provides an ejector 300 for a forklift, comprising an ejector frame 310 , a first driving device 320 and a pressurizing rack 330 .

[0042] The push-out frame 310 is vertically mounted above the forks 400 of the forklift 100. A first drive unit 320 is connected between the forks 400 and the push-out frame 310 and is configured to push and pull the push-out frame 310 forward and backward. The press-down frame 330 is horizontally mounted in front of the push-out frame 310. The press-down frame 330 is adjustable vertically on the push-out frame 310.

[0043] In this embodiment, the forklift 100 can be an internal combustion counterbalanced forklift, an electric counterbalanced forklift, an electric ride-on warehouse forklift, a truck-mounted forklift (electric walk-behind warehouse forklift), etc. The forklift 100 typically has a lifting frame disposed on the front side of a vehicle body 500, and a fork 400 mounted on the lifting frame. The fork 400 typically has a vertically disposed mounting frame 420 and at least two forwardly extending tines 410.

[0044] The ejector 300 can be mounted on the mounting frame 420 or the fork tine 410, so that it can be raised and lowered together with the fork 400 and the cargo. The ejector frame 310 is vertically arranged in front of the mounting frame 420 and on the upper side of the fork tine 410. The ejector frame 310 can be welded or assembled from profiles (such as steel pipes, angle steels, etc.). In order to facilitate the unloading of cargo, such as Figure 6 As shown, the ejection frame 310 may further be provided with an ejection plate 316 , which may be made of a steel plate.

[0045] In this embodiment, the first drive device 320 can be a horizontal scissor mechanism that pushes the ejection rack 310 forward by expanding and pulls the ejection rack 310 back by folding. The first drive device 320 can also be a horizontally arranged electric push rod or hydraulic push rod that pushes the ejection rack 310 forward by extending and pulls the ejection rack 310 back by retracting. The first drive device 320 can also be a screw mechanism, a connecting rod mechanism, etc.

[0046] In this embodiment, the press shelf 330 is horizontally positioned in front of the push-out frame 310 and above the fork tines 410. The press shelf 330 can be welded or assembled from profiles (e.g., steel pipes, angle steel, etc.). When multiple layers of bagged goods are stacked on the forks 400, the press shelf 330 can move downward, squeezing and securing the goods at its upper end, thereby improving their stability.

[0047] In actual use, the forklift 100 is first moved to the cargo location. The first drive unit 320 is then controlled to pull back the push-out rack 310, and the pressure rack 330 is controlled to move upward, making way for loading on the forks 400. The cargo is then stacked one by one on the forks 400, and the pressure rack 330 is controlled to move downward. Once it contacts the top of the cargo, it continues to move downward for a distance, creating a certain amount of pressure on the cargo. This completes the loading process.

[0048] Because the pressure rack 330 strengthens the fixation of the goods and improves the stability of the goods, the goods are less likely to fall when the forklift 100 moves the goods, thereby improving handling efficiency. On the other hand, with the help of the pressure rack 330, the forklift 100 can stack more layers of goods, thereby increasing the single load capacity of the forklift 100 and further improving handling efficiency.

[0049] After the forklift 100 moves the cargo to the unloading position, it first controls the lifting frame to raise and lower the forks 400 to the desired height. The first drive unit 320 is then controlled to push the ejector rack 310 and the cargo forward, freeing the cargo from the forks 400. While pushing the cargo forward, the press rack 330 is controlled to rise. Alternatively, the press rack 330 can be controlled to rise first, followed by the first drive unit 320 to push the ejector rack 310 and the cargo forward. This completes the unloading process.

[0050] Due to the use of the push-out rack 310, manual handling is not required when unloading the goods, thereby saving manpower and improving handling efficiency.

[0051] In some embodiments of the ejector of the present invention, as Figure 3-5 As shown, the press rack 330 is a telescopic rack, so that the length L of the press rack 330 along the front and back can be adjusted by telescoping.

[0052] Different types and quantities of goods may have different lengths and heights when stacked on the forks 400. The press rack 330 is mounted on the push rack 310 in an adjustable manner up and down to accommodate different heights of goods. The press rack 330 is configured as a telescopic rack to accommodate different lengths of goods, fully squeezing the upper end of the goods and providing a firm support for the goods.

[0053] It should be understood that while the length L of the pallet rack 330 can be designed to be sufficiently long, for example, equal to or greater than the length of the forks 400, the cargo can still be secured. However, the working environment of the forklift 100 is relatively complex. Loading and unloading may occur in the corner of a room or inside a truck compartment. If the pallet rack 330 is too long, it may interfere with surrounding facilities, affecting normal handling operations. Configuring the pallet rack 330 as a telescopic rack can avoid interference with surrounding facilities and improve the applicability of the forklift 100.

[0054] In some embodiments of the ejector of the present invention, as Figure 3-4 As shown, the front end of the press rack 330 is fixedly connected to a front baffle 340 extending downward.

[0055] In this embodiment, the front baffle 340 can be welded or assembled from profiles (e.g., steel pipes, angle steel, etc.), or machined from steel plates. The front baffle 340 can be positioned vertically below the front end of the pallet 330, or can be tilted slightly backward. The front baffle 340 further supports and secures the cargo. While the pallet 330 presses downward to secure the upper end of the cargo, the front baffle 340 secures the cargo from the front, preventing it from tilting forward or falling during transport.

[0056] In some embodiments of the ejector of the present invention, the front baffle 340 is a telescopic frame, and the lower end of the front baffle 340 can be telescopic relative to the upper end.

[0057] In this embodiment, the front baffle 340 can change its height by telescoping to adapt to cargoes of different heights, further securing the cargoes and preventing them from tilting forward or falling during transportation.

[0058] In some embodiments of the ejector of the present invention, as Figure 6 As shown, the width W1 of the pressure rack 330 along the left and right sides is greater than the width W2 of the fork 400. In this way, the goods can be fully covered and squeezed from the upper side, adapting to goods of different widths and preventing the goods from tilting or falling during transportation.

[0059] In some embodiments of the ejector of the present invention, as Figure 6 As shown, the width W3 of the front baffle 340 along the left and right sides is greater than the width W2 of the fork 400. In this way, the goods can be fully fixed and supported from the front side, adapted to goods of different widths, and prevented from tilting forward and falling during transportation.

[0060] In some embodiments of the ejector of the present invention, as Figure 3-4 As shown, the press rack 330 includes a rear press rack 331 , a front press rack 332 and a second driving device 333 .

[0061] The rear pressing frame 331 is connected to the pushing frame 310 in an up-and-down sliding manner via a lifting column 351. The front pressing frame 332 is connected to the front side of the rear pressing frame 331 in a forward and backward sliding manner. The second driving device 333 is connected between the rear pressing frame 331 and the front pressing frame 332, and the second driving device 333 is configured to push and pull the front pressing frame 332 in a forward and backward manner.

[0062] In this embodiment, the front pressing frame 332 can be plugged into and connected to the rear pressing frame 331, and can be slid forward and backward to change the length L of the pressing frame 330. The telescopic frame has a simple structure, high reliability, and low cost.

[0063] The second driving device 333 can be an electric push rod, a hydraulic push rod, etc., which takes up little space and can provide a strong pushing and pulling force. In particular, it provides a strong pulling force to force the front stop 340 to move backward and firmly press against the front side of the cargo, preventing the cargo from tilting forward or falling during transportation.

[0064] In some embodiments of the ejector of the present invention, as Figure 3-4 As shown, vertical slide rails 312 are respectively provided at the left and right ends of the push-out rack 310 .

[0065] There are two lifting columns 351, which are respectively connected to the left and right ends of the rear pressure frame 331. The two lifting columns 351 are slidably connected to the two slide rails 312 through rollers (not shown in the figure).

[0066] A third driving device 353 is connected between the pushing frame 310 and the rear pressing frame 331 . The third driving device 353 is configured to push and pull the rear pressing frame 331 up and down.

[0067] In this embodiment, the slide rail 312 can provide guidance and limit for the lifting column 351. The slide rail 312 can be made of channel steel, and the roller rolls up and down in the channel steel, thereby reducing the friction when the lifting column 351 is raised and lowered.

[0068] The third driving device 353 can be an electric push rod, a hydraulic push rod, etc., which takes up little space and can provide a strong push and pull force. In particular, it provides a strong pulling force to force the press rack 330 to move downward, effectively squeezing and fixing the upper end of the goods to prevent the goods from tilting or falling during transportation.

[0069] In some embodiments of the ejector of the present invention, as Figure 3-4 As shown, the first driving device 320 includes a horizontal scissor mechanism 321. The rear end of the horizontal scissor mechanism 321 is connected to the fork 400, and the front end is connected to the push-out frame 310.

[0070] The horizontal scissor mechanism 321 is a multi-stage scissor mechanism. When the horizontal scissor mechanism 321 is fully expanded, the push-out frame 310 is located at the front side of the front end of the fork 400.

[0071] The horizontal scissor mechanism 321 has the advantages of a simple structure, ease of manufacture and maintenance, good stability, resistance to tilting or shaking during extension and retraction, strong load-bearing capacity, and ease of operation. The multi-stage scissor mechanism can achieve a large extension length and a small retracted volume. When extended, it can push cargo off the forks 400, while when retracted, it minimizes the cargo space occupied by the forks 400.

[0072] In this embodiment, the first drive device 320 can be provided with a driver 322 to drive the horizontal scissor mechanism 321 to extend and retract. Driver 322 can be an electric push rod, a hydraulic push rod, or the like, which takes up little space and provides a reliable push and pull force. In particular, it can provide a strong thrust to propel heavy cargo forward.

[0073] In some embodiments of the ejector of the present invention, as Figure 6 As shown, the fork 400 includes two fork tines 410 spaced apart from each other in the left and right directions.

[0074] The lower end of the ejection frame 310 protrudes downward to form an ejection block 314 . The ejection block 314 is located between the two fork teeth 410 , and the bottom end of the ejection block 314 is located between the top and bottom ends of the fork teeth 410 .

[0075] When bagged goods are placed on the fork tines 410, the lower end of the goods may be deformed and positioned below the top surface of the fork tines 410. In this embodiment, by providing a downwardly protruding pusher block 314 between the two fork tines 410, the goods can be effectively pushed forward and prevented from being squeezed in the gap between the pusher plate 316 and the fork tines 410.

[0076] In some embodiments of the fork 400 device of the present invention, as Figure 2 As shown, the fork device 200 includes a fork 400 and an ejector 300 according to any one of the above embodiments or a combination of the embodiments.

[0077] In this embodiment, the ejector 300 may be mounted on the mounting bracket 420 of the fork 400 .

[0078] In some embodiments of the forklift of the present invention, as Figure 1 As shown, the forklift 100 includes a vehicle body 500 and a fork assembly 200 according to any one of the above embodiments or a combination of the embodiments. The fork assembly 200 is detachably fixedly connected to the front side of the vehicle body 500 .

[0079] The forklift 100 can be an internal combustion counterbalanced forklift 100, an electric counterbalanced forklift 100, an electric ride-on warehouse forklift 100, a truck-mounted forklift (electric walk-behind warehouse forklift 100), or the like. The fork assembly 200 is detachably fixedly connected to the front side of the vehicle body 500, specifically, mounted on a lifting frame. To transport bagged cargo, the fork assembly 200 can be mounted on the lifting frame. To transport other cargo, the fork assembly 200 can be removed and a suitable fork for the cargo mounted on the lifting frame.

[0080] In some embodiments of the forklift of the present invention, as Figure 1 As shown, the forklift 100 is a truck-mounted forklift.

[0081] A truck-mounted forklift is a type of forklift that can be mounted or loaded onto a truck or trailer, typically used for loading, unloading, transporting, and short-distance transportation of cargo. A truck-mounted forklift can be moved quickly with the vehicle, making it suitable for handling cargo between multiple locations and offering high mobility. Upon arrival at the destination, a truck-mounted forklift can begin loading and unloading operations immediately, reducing waiting time and manual labor, and improving overall logistics efficiency. Truck-mounted forklifts are compact and can be mounted or loaded onto a vehicle without taking up excessive space. This compact design also allows them to operate in confined spaces and adapt to a variety of complex environments.

[0082] In this embodiment, by arranging the fork device 200 of any one of the above embodiments or a combination of embodiments on a truck-mounted forklift, the truck-mounted forklift can carry bagged goods more efficiently.

[0083] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention can be directly determined or deduced from the contents disclosed herein without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

1. An ejector for a forklift, characterized in that: include: A push-out rack is vertically arranged on the upper side of the fork of the forklift; a first driving device connected between the fork and the push-out frame, configured to push and pull the push-out frame forward and backward; The pressing shelf is horizontally arranged in front of the pushing shelf; the pressing shelf is adjustable up and down on the pushing shelf.

2. The ejector according to claim 1, wherein: The press rack is a telescopic rack, so that the length of the press rack along the front and back can be adjusted by telescoping.

3. The ejector according to claim 2, characterized in that The front end of the pressure rack is fixedly connected with a front baffle extending downward.

4. The ejector according to claim 3, characterized in that The width of the pallet along the left and right sides is greater than the width of the fork; and / or The left and right widths of the front baffle are greater than the width of the fork.

5. The ejector according to claim 2, characterized in that The press rack comprises: A rear pressing frame, the rear pressing frame being connected to the pushing frame by sliding up and down through a lifting column; A front pressing frame slidably connected to the front side of the rear pressing frame in a front-to-back direction; The second driving device is connected between the rear pressing frame and the front pressing frame, and the second driving device is configured to push and pull the front pressing frame forward and backward.

6. The ejector according to claim 5, characterized in that Vertical slide rails are respectively provided at the left and right ends of the push-out rack; There are two lifting columns, which are respectively connected to the left and right ends of the rear pressure frame; the two lifting columns are slidably connected to the two slide rails through rollers; A third driving device is connected between the pushing frame and the rear pressing frame, and the third driving device is configured to push and pull the rear pressing frame up and down.

7. The ejector according to claim 1, wherein: The first driving device includes a horizontal scissor mechanism; the rear end of the horizontal scissor mechanism is connected to the fork, and the front end is connected to the push-out frame; The horizontal scissor-fork mechanism is a multi-stage scissor-fork mechanism; when the horizontal scissor-fork mechanism is fully unfolded, the push-out frame is located in front of the front end of the fork.

8. The ejector according to claim 1, wherein: The fork comprises two fork tines spaced apart along the left and right sides; The lower end of the ejection frame protrudes downward to form an ejection block, the ejection block is located between the two fork teeth, and the bottom end of the ejection block is located between the top end and the bottom end of the fork teeth.

9. A fork device for a forklift, characterized in that: The utility model comprises a fork and an ejector according to any one of claims 1 to 8.

10. A forklift, characterized in that: It comprises a vehicle body and the fork device as claimed in claim 9, wherein the fork device is detachably fixedly connected to the front side of the vehicle body.

Images