Forklift lifting height and load indicating device
By designing load diagrams and height recognition pointers on the forklift, the problem of difficulty for drivers to accurately judge the lifting height and load of the forklift is solved, and higher operating safety and operating efficiency are achieved, and operating costs are reduced.
Patent Information
- Application Number
- CN202421653658.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-12
AI Technical Summary
It is difficult for forklift drivers to accurately judge the lifting height and load-bearing capacity of the forklift, resulting in overload or collision with the obstacle above, affecting operating efficiency and increasing operating costs.
A forklift lifting height and load indication device is designed, including a load diagram and a height identification pointer. The load diagram is arranged inside the forklift top bracket. The height identification pointer is associated with the stroke of the lifting cylinder through a moving pulley set, providing a double indication method to ensure that the driver can accurately understand the lifting height and load of the forklift.
Through this indicator device, the driver can more accurately control the lifting height and load of the forklift, improve operational safety and operation efficiency, and reduce maintenance difficulties and operation costs.
Smart Images
Figure CN222757906U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of forklifts, and more specifically, to an indicating device for the lifting height and load of a forklift. Background Art
[0002] When a forklift driver is operating the forklift mast, in order to improve safety and observe the lifting height and load, he needs to install load sensors and height sensors on the forklift in advance. However, installing load sensors and height sensors requires additional equipment costs, including the purchase, installation and subsequent maintenance costs of sensors, which will increase the operating costs of the forklift. In addition, under complex working conditions, forklifts may face various harsh environmental conditions, such as vibration, moisture, dust, etc. These factors may damage electrical components and cause unstable or failure sensor performance. Due to the complexity and fragility of electrical components, the maintenance difficulty of forklifts will increase accordingly after installing sensors. Therefore, most forklift drivers can only operate based on experience and feeling. It is difficult for drivers to accurately judge the carrying capacity and lifting height of the forklift, which may lead to overloading or collision with obstacles above, resulting in the inability to quickly and accurately complete loading and unloading tasks, affecting work efficiency. In the case of reduced work efficiency, in order to complete the same workload, it may be necessary to increase the number of drivers or extend their working hours, which will lead to a waste of labor costs. Utility Model Content
[0003] One purpose of the utility model is to provide a forklift lifting height and load indicating device to solve the aforementioned problems that the installation of load sensors and height sensors requires additional equipment costs, the maintenance difficulty increases accordingly, the driver has difficulty in accurately judging the forklift's carrying capacity and lifting height, and cannot quickly and accurately complete loading and unloading tasks, which affects work efficiency.
[0004] According to the first aspect of the utility model, a device for indicating the lifting height and load of a forklift is provided, including a load graphic, which is arranged on the inner side of the overhead guard of the forklift and is located directly in front of the driver; the mast of the forklift includes an inner mast, an outer mast, a fork and a lifting cylinder, and a plurality of height identification pointers are arranged on the outer side of the lifting cylinder, and the plurality of height identification pointers are associated with the stroke of the lifting cylinder through a movable pulley set, and each height identification pointer corresponds to a specific lifting height.
[0005] Optionally, a height indicator bar is provided at the bottom cross beam of the inner mast, and the height indicator bar rises synchronously with the lifting of the inner mast.
[0006] Optionally, the load diagram lists in a table the maximum load corresponding to the forklift when the standard load center distance and the required lifting height are determined.
[0007] Optionally, the height identification pointer is designed to be an inverted triangle shape.
[0008] Optionally, the multiple altitude identification pointers include a first altitude identification pointer, a second altitude identification pointer and a third altitude identification pointer. When the altitude indication bar coincides with the first altitude identification pointer, it indicates that the altitude has been raised to the first altitude; when the altitude indication bar coincides with the second altitude identification pointer, it indicates that the altitude has been raised to the second altitude; when the altitude indication bar coincides with the third altitude identification pointer, it indicates that the altitude has been raised to the third altitude.
[0009] Optionally, the height indicator bar is in the shape of a long strip.
[0010] Optionally, the gantry further includes a sprocket, a chain and a fork frame, the front end of the chain is connected to the fork frame, the middle of the chain passes around the sprocket, and the rear end of the chain is fixed to the crossbeam of the outer gantry to form the movable pulley set.
[0011] Optionally, the overhead guard is arranged directly above the driver's driving position and is installed in a two-point, three-point or four-point manner.
[0012] The forklift lifting height and load indicating device disclosed in the present invention has the following technical effects:
[0013] The load icon is arranged on the inner side of the overhead guard of the forklift and is located directly in front of the driver. The setting of the load icon is convenient for the driver to observe at any time during operation without interfering with other functions of the forklift;
[0014] A plurality of height identification pointers are arranged on the outer side of the lifting cylinder, and the plurality of height identification pointers are associated with the stroke of the lifting cylinder through a movable pulley set. Each height identification pointer corresponds to a specific lifting height, and the driver can accurately understand the lifting height of the forklift by observing the position of the pointer; a height indicator bar is arranged at the bottom cross beam of the inner mast, and the height indicator bar rises synchronously with the lifting of the inner mast, and the height indicator bar and the height identification pointer together provide the driver with accurate height information; this dual indication method not only improves the safety of forklift operation, but also enables the driver to more conveniently grasp the lifting height of the forklift, thereby more accurately controlling the forklift to carry out cargo handling.
[0015] The utility model avoids the problem of increasing the cost of additional equipment by installing load sensors and height sensors, reduces the difficulty of maintenance, and enables the driver to accurately judge the load-bearing capacity and lifting height of the forklift, so as to quickly and accurately complete the loading and unloading tasks and improve the working efficiency.
[0016] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.
[0018] Figure 1 A schematic diagram of the working state of a forklift provided by an embodiment of the utility model;
[0019] Figure 2 A schematic diagram of the forklift mast lifting process in the forklift lifting height and load indicating device provided by the embodiment of the utility model;
[0020] Figure 3 A schematic diagram of a load diagram in a forklift lifting height and load indicating device provided by an embodiment of the utility model.
[0021] The markings in the figure are as follows: 10, frame; 20, overhead guard; 31, inner mast; 32, outer mast; 33, fork; 34, lifting cylinder; 40, load diagram; 50, first height identification pointer; 51, second height identification pointer; 52, third height identification pointer; 60, height indicator bar. DETAILED DESCRIPTION
[0022] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention.
[0023] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
[0024] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.
[0025] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.
[0026] In the prior art, the lifting height and load are measured by installing load sensors and height sensors on the forklift. However, this method will increase the extra equipment cost, and the maintenance difficulty of the forklift will increase accordingly after the sensors are installed. Therefore, most forklift drivers can only operate based on experience and feeling, but it is difficult for the driver to accurately judge the carrying capacity and lifting height of the forklift, which may cause overloading or collision with obstacles above, resulting in the inability to quickly and accurately complete the loading and unloading tasks, affecting the work efficiency. The utility model facilitates the driver to observe at any time during operation through the setting of the load diagram, and provides the driver with accurate height information through the height indicator bar and the height identification pointer. This dual indication method not only improves the safety of forklift operation, but also enables the driver to more conveniently grasp the lifting height of the forklift, thereby more accurately controlling the forklift to carry goods.
[0027] The utility model provides an embodiment of a forklift lifting height and load indicating device. Specifically, Figures 1 to 3 As shown, it includes a load icon 40, which is arranged on the inner side of the overhead guard 20 of the forklift and is located directly in front of the driver; the mast 30 of the forklift includes an inner mast 31, an outer mast 32, a fork 33 and a lifting cylinder 34, and a plurality of height identification pointers are arranged on the outer side of the lifting cylinder 34, and the plurality of height identification pointers are associated with the stroke of the lifting cylinder 34 through a movable pulley set, and each height identification pointer corresponds to a specific lifting height, ensuring that the height identification pointer can accurately indicate the current lifting height of the forklift. It should be noted that the position arrangement of the load icon 40 ensures that the driver can easily and quickly view the current load status of the forklift during operation, and the load icon 40 displays the load status of the forklift in an intuitive manner such as color, number or graphic. When the forklift carries cargo, the load icon will be updated in real time according to the weight of the cargo. The inner mast 31 slides in the outer mast 32, and is lifted and lowered by the drive of the lifting cylinder 34, and the fork 33 is installed on the fork frame and moves with the lifting and lowering of the inner mast 31. The lifting cylinder 34 is used as a power source to drive the mast to rise and fall. The piston rod of the lifting cylinder 34 is extended and retracted to control the rise and fall of the inner mast 31 and the fork 33. The movable pulley group converts the linear motion of the lifting cylinder 34 into the translational motion of the height identification pointer, thereby realizing the indication of the lifting height. The lifting height and load indicating device of the forklift of the embodiment of the utility model provides the driver with comprehensive and accurate forklift status information through the dual indication mode of the load diagram 40 and the height identification pointer. The driver can understand the load condition and lifting height of the forklift in real time during the operation, so as to make safer and more efficient operation decisions.
[0028] Furthermore, a height indicator bar 60 is provided at the bottom crossbeam of the inner mast 31, and the height indicator bar 60 rises synchronously with the lifting of the inner mast 31. When the inner mast 31 rises with the driving of the lifting cylinder 34, the height indicator bar 60 also rises synchronously. The height indicator bar 60 is provided with a plurality of scales or color marks, each mark corresponding to a specific lifting height. The height indicator bar 60 helps the driver avoid collision with surrounding obstacles (such as warehouse shelves, ceilings, etc.), thereby improving the safety of operation.
[0029] Furthermore, the load diagram 40 lists in a table the maximum load corresponding to the forklift when the standard load center distance D (mm) and the required lifting height H (mm) are determined. The standard load center distance refers to the horizontal distance from the center of gravity of the cargo to the vertical surface of the forklift fork; the required lifting height refers to the target height to which the forklift needs to lift the cargo; the maximum load refers to the maximum weight that the forklift can carry under the given standard load center distance and required lifting height. Specifically, Figure 3 As shown in the table, when the standard load center distance D is C1, the maximum loads on the forks corresponding to different lifting heights of H1, H2 and H3 are Q11, Q12 and Q13 respectively; when the standard load center distance D is C2, the maximum loads on the forks corresponding to different lifting heights of H1, H2 and H3 are Q21, Q22 and Q23 respectively; when the standard load center distance D is C3, the maximum loads on the forks corresponding to different lifting heights of H1, H2 and H3 are Q31, Q32 and Q33 respectively. Before operating the forklift, the driver should look up the corresponding maximum load value in the table according to the actual load center distance of the goods and the required lifting height. If the actual weight of the goods exceeds the maximum load value given in the table, the driver should adjust the stacking method of the goods, reduce the weight of the goods, or choose a forklift with a larger load capacity.
[0030] Furthermore, the height identification pointer is designed to be an inverted triangle shape, so as to more clearly display the overlap between the height identification pointer and another mark.
[0031] In the embodiment of the utility model, the multiple height identification pointers include a first height identification pointer 50, a second height identification pointer 51 and a third height identification pointer 52. When the height indicator bar 60 coincides with the first height identification pointer 50, it indicates that it has been lifted to the first height H1, and the load on the fork is Q11 at this time; when the height indicator bar 60 coincides with the second height identification pointer 51, it indicates that it has been lifted to the second height H2, and the load on the fork is Q12 at this time; when the height indicator bar 60 coincides with the third height identification pointer 52, it indicates that it has been lifted to the third height H3, and the load on the fork is Q13 at this time.
[0032] When the driver operates the gantry 30 to lift, the first height identification pointer 50 arranged at the bottom of the lifting cylinder 34 first coincides with the height indicator bar. At this time, the driver can calculate the lifting height and load based on the load diagram 40, and so on. It can also be customized according to user needs, and the height that the user needs to reach is set as the xth identification pointer Hx, and it is explained on the load diagram 40.
[0033] Specifically, the height indicator bar 60 is in the shape of a long strip, which can clearly display the range of variation of the lifting height, and the long strip shape makes the scales or marks on the height indicator bar 60 arranged more neatly and orderly, which is convenient for the driver to read quickly.
[0034] In the embodiment of the utility model, the gantry 30 also includes a sprocket, a chain and a fork frame. The front end of the chain is connected to the fork frame, the middle of the chain bypasses the sprocket, and the rear end of the chain is fixed on the crossbeam of the outer gantry 32 to form a movable pulley set. Under the push of the hydraulic oil, the piston of the lifting cylinder 34 rises, driving the sprocket to rise together, and the sprocket rotates while rising, driving the front end of the chain, the fork frame, the fork 33 and the goods to rise synchronously. When descending, the hydraulic oil circuit in the lifting cylinder 34 is connected to the oil tank, and the gravity of the goods and the fork frame and the fork force the cylinder piston to descend, and the fork frame and the goods also descend. According to the working principle of the movable pulley, the rising height of the goods is twice the stroke of the lifting cylinder 34, and the rising speed is also twice the rising speed of the lifting cylinder 34.
[0035] Specifically, the overhead guard 20 is arranged directly above the driver's seat and is installed in a two-point, three-point or four-point manner. The overhead guard 20 is arranged directly above the driver's seat to ensure that the driver can be protected to the greatest extent in the event of an accident, and to protect the forklift driver from heavy objects that may fall from above or other potential dangers during operation.
[0036] The forklift lifting height and load indicating device of the utility model embodiment is convenient for the driver to observe at any time during operation through the setting of the load diagram, and will not interfere with other functions of the forklift; the multiple height identification pointers are associated with the stroke of the lifting cylinder 34 through the movable pulley group, and each height identification pointer corresponds to a specific lifting height. The driver can accurately understand the lifting height of the forklift by observing the position of the pointer; a height indication bar 60 is provided at the bottom crossbeam of the inner mast 31, and the height indication bar 60 rises synchronously with the lifting of the inner mast 31. The height indication bar 60 and the height identification pointer provide the driver with accurate height information; this dual indication method not only improves the safety of forklift operation, but also enables the driver to more conveniently grasp the lifting height of the forklift, thereby more accurately controlling the forklift to carry out cargo handling, and can quickly and accurately complete loading and unloading tasks, thereby improving work efficiency.
[0037] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings, but the above is only a preferred embodiment of the present invention. It should be noted that the technical features involved in the above embodiments and their preferred methods can be reasonably combined and matched into a variety of equivalent schemes by those skilled in the art without departing from or changing the design concept and technical effects of the present invention; therefore, the present invention is not limited to the scope of implementation as shown in the drawings, and all changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the specification and drawings, should be within the protection scope of the present invention.
Claims
1. A forklift lifting height and load indicating device, characterized in that: The invention comprises a load icon (40), wherein the load icon (40) is arranged on the inner side of the overhead guard (20) of the forklift and is located directly in front of the driver; the mast (30) of the forklift comprises an inner mast (31), an outer mast (32), a fork (33) and a lifting cylinder (34), wherein a plurality of height identification pointers are arranged on the outer side of the lifting cylinder (34), wherein the plurality of height identification pointers are associated with the stroke of the lifting cylinder (34) via a movable pulley block, and each height identification pointer corresponds to a specific lifting height.
2. The forklift lifting height and load indicating device according to claim 1, characterized in that: A height indicator bar (60) is provided at the bottom crossbeam of the inner mast (31), and the height indicator bar (60) rises synchronously with the lifting of the inner mast (31).
3. The forklift lifting height and load indicating device according to claim 1, characterized in that: The load diagram (40) lists in a table the maximum load corresponding to the forklift when the standard load center distance and the required lifting height are determined.
4. The forklift lifting height and load indicating device according to claim 1, characterized in that: The plurality of height identification pointers are designed to be inverted triangle shapes.
5. The forklift lifting height and load indicating device according to claim 2, characterized in that: The plurality of altitude identification pointers include a first altitude identification pointer (50), a second altitude identification pointer (51), and a third altitude identification pointer (52); when the altitude indication bar (60) overlaps with the first altitude identification pointer (50), it indicates that the vehicle has been lifted to the first altitude; when the altitude indication bar (60) overlaps with the second altitude identification pointer (51), it indicates that the vehicle has been lifted to the second altitude; and when the altitude indication bar (60) overlaps with the third altitude identification pointer (52), it indicates that the vehicle has been lifted to the third altitude.
6. The forklift lifting height and load indicating device according to claim 5, characterized in that: The height indicator bar (60) is in the shape of a long strip.
7. The forklift lifting height and load indicating device according to claim 1, characterized in that: The door frame (30) also includes a sprocket, a chain and a fork frame, the front end of the chain is connected to the fork frame, the middle of the chain passes around the sprocket, and the rear end of the chain is fixed to the crossbeam of the outer door frame (32) to form the movable pulley block.
8. The forklift lifting height and load indicating device according to claim 1, characterized in that: The overhead guard (20) is arranged directly above the driver's driving position and is installed in a two-point, three-point or four-point manner.