F-shaped channel steel applied to a forklift mast

Abstract

The utility model discloses a kind of F-shaped channel steel applied to fork truck portal, it is related to the field of fork truck portal manufacturing technology, it includes two webs mutually parallel, the two webs are fixed with transverse plate between, the side of two webs mutually close is equipped with connecting plate, connecting plate is telescopic arrangement, and connecting plate is slidably connected along the web width direction with web, the outside of web is fixed with reinforcing plate, reinforcing plate is telescopic arrangement, and reinforcing plate is parallel with connecting plate, the upper end of web is equipped with two rollers, two rollers are located at the both ends of transverse plate respectively. The present application has the effect of improving the stability of channel steel use.

Description

Technical Field

[0001] This utility model relates to the field of forklift mast manufacturing technology, and in particular to an F-shaped channel steel used in forklift masts. Background Technology

[0002] With the booming development of the logistics industry, forklifts, as important equipment for material handling, are increasingly widely used in warehousing, logistics, manufacturing and other fields. The requirements for the performance and reliability of forklifts are also getting higher and higher. As a key load-bearing component for forklifts to realize the lifting, handling and stacking of goods, the performance of the mast channel steel directly determines the working capacity of the forklift, and its importance is becoming increasingly prominent with the development of the logistics industry.

[0003] Related technology can be found in Chinese Patent No. CN214653399U, which discloses a hot-rolled C-shaped steel for forklift masts. The hot-rolled C-shaped steel for forklift masts includes: a web, a first flange, and a second flange. It also includes a boss. The first flange and the second flange are located at both ends of the lower surface of the web, forming a C-shaped structure with the web. The boss is located at the connection between the lower surface of the web and the left side of the second flange. This invention offers a wide operating field of view, is lightweight, has good rigidity, and is less difficult to hot-roll and has lower production costs.

[0004] Regarding the aforementioned technologies, in practical engineering, due to the limitations of their cross-sectional shape and size, their flanges are narrow and thin. When subjected to bending loads, the moment of inertia of the cross section is small, which prevents the material from fully realizing its strength potential, thus making it difficult to meet some high-load engineering requirements. Utility Model Content

[0005] To improve the stability of channel steel in use, this application provides an F-type channel steel for use in forklift masts.

[0006] This application provides an F-type channel steel for use in forklift masts, employing the following technical solution:

[0007] An F-type channel steel for use in forklift masts includes two parallel webs, characterized in that: a transverse plate is fixed between the two webs, a connecting plate is provided on the side of the two webs that are close to each other, the connecting plate is telescopically oriented and slidably connected to the web along the width direction of the web, a reinforcing plate is fixed on the outer side of the web, the reinforcing plate is telescopically oriented and parallel to the connecting plate, and two rollers are provided at the upper end of the web, the two rollers being located at both ends of the transverse plate.

[0008] By adopting the above technical solution, the two web plates are connected together by a transverse plate. At the same time, the transverse plate improves the connection strength of the web plates. The telescopic connecting plate, which can slide along the width of the web plates, can adjust its length and position according to actual needs, enhancing the flexibility of the channel steel structure. The rollers provide support for subsequent installation, improving the flexibility of equipment use. The reinforcing plate and the connecting plate are parallel to the web plates to form an F-shaped channel steel, enabling the channel steel to better withstand pressure and tension in forklift mast applications, thus improving the stability of the channel steel in use.

[0009] Optionally, the connecting plate is provided with a number of reinforcing ribs on the side away from the reinforcing plate. The number of reinforcing ribs are evenly distributed along the length of the connecting plate and are fixedly connected to the connecting plate.

[0010] By adopting the above technical solution, when the web is subjected to shear force, the stiffeners can disperse the shear stress. The stiffeners are fixedly connected to the connecting plate to form an integral stress-bearing structure, which makes the shear force more evenly distributed between the connecting plate and the stiffeners. At the same time, when a certain part of the web is subjected to large stress, the stiffeners can provide additional support, reduce the probability of excessive deformation in that part, and improve the stability of the channel steel.

[0011] Optionally, a fixing plate is fixed between two adjacent reinforcing ribs, and an opening is provided on the surface of the fixing plate.

[0012] By adopting the above technical solution, the presence of the fixing plate effectively improves the bending stiffness between adjacent reinforcing ribs. The opening design can reduce the amount of material used in the fixing plate, thereby reducing the weight of the entire structure. At the same time, the opening reduces the obstruction of the cab in the later stage, improving the convenience of equipment use.

[0013] Optionally, the connecting plate includes an inner plate, an outer plate, and bolts. The outer plate is located on one side of the two webs that are close to each other. The surface of the webs has a groove. The outer plate is slidably connected to the webs along the direction of the groove. The inner plate is inserted into the outer plate and is slidably connected to the outer plate along the width direction of the outer plate. The surface of the inner plate has several threaded holes. The bolts pass through the outer plate and are threadedly connected to any of the threaded holes.

[0014] By adopting the above technical solution, the inner plate slides along the width direction of the outer plate, thereby adjusting the length of the connecting plate to adapt to different usage requirements. After adjustment, the length of the connecting plate is fixed by the cooperation of bolts with the threaded holes on the inner plate, thereby improving structural stability.

[0015] Optionally, a groove is provided on the surface of the web plate, and the connecting plate is slidably connected to the web plate along the length of the groove. A threaded rod is fixed on the side of the connecting plate near the cross plate, and a fixing nut is provided on the end of the threaded rod away from the connecting plate. The threaded rod passes through the cross plate and is threadedly connected to the fixing nut.

[0016] By adopting the above technical solution, the slide groove limits the connecting plate, allowing the connecting plate to slide within the slide groove. The sliding threaded rod causes the connecting plate to slide, thereby adjusting the dimensions of the channel steel structure to adapt to different forklift mast usage requirements. After adjustment, the fixing nut is rotated to connect the fixing nut with the threaded rod, reducing the movement of the threaded rod and thus reducing the movement of the connecting plate after adjustment, improving the stability of the channel steel in use.

[0017] Optionally, a number of lateral force blocks are fixed on the side of the two webs that are far apart from each other. The lateral force blocks are evenly distributed along the length of the webs. The lateral force blocks are used to strengthen the lateral force on the webs. A number of through holes are opened on the surface of the lateral force blocks. The through holes are evenly distributed along the width of the lateral force blocks.

[0018] By adopting the above technical solution, the lateral force blocks effectively enhance the lateral load-bearing performance of the web. When the structure is subjected to lateral loads, the lateral force blocks can share part of the load, reducing the stress burden on the web itself, thereby improving the lateral bearing capacity of the entire structure. This makes the structure more stable and reliable under complex stress environments, enabling it to withstand greater lateral forces. The through holes facilitate subsequent pipe fixing, improving ease of use.

[0019] Optionally, an inclined plate is fixed at the lower end of the web, and mounting holes are provided on the surface of the inclined plate.

[0020] By adopting the above technical solution, the tilt angle design of the inclined plate can make the position of the mounting hole more closely match the connection interface of the external structure, reduce the probability of bolt hole misalignment caused by angle deviation when installing the vertical web plate, and improve the convenience of web plate connection.

[0021] Optionally, a mounting plate is fixed to the lower end of the web plate. The mounting plate is used to mount the hydraulic cylinder, and a connection hole is provided on the surface of the mounting plate.

[0022] By adopting the above technical solution, the mounting plate provides a support point for the hydraulic cylinder during installation, and fasteners securely fix the cylinder to the mounting plate through the connecting holes. This reduces the probability of the cylinder loosening or falling off due to vibration or external forces during operation. Furthermore, the design of the connecting holes facilitates subsequent disassembly and maintenance. When the cylinder needs repair, replacement, or adjustment, simply loosening the fasteners allows for easy removal from the mounting plate, improving the maintainability and operability of the equipment.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The reinforcing plates and connecting plates are symmetrically distributed on both sides of the web to form an F-shape. The reinforcing plates of the F-shaped channel steel are arranged parallel to the web, which can directly bear and disperse these forces, and evenly transmit the pressure and tension to the entire portal frame structure, reduce deformation or damage caused by local stress concentration, and improve the stability of the channel steel.

[0025] 2. The inner plate slides along the width of the outer plate, thereby adjusting the length of the connecting plate to adapt to different usage needs and improve the flexibility of the connecting plate.

[0026] 3. The tilt angle design of the inclined plate allows the position of the mounting holes to fit more closely to the connection interface of the external structure, reducing the probability of bolt hole misalignment due to angle deviation when installing vertical web plates, and improving the convenience of web plate connection. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an F-shaped channel steel used in forklift masts.

[0028] Figure 2 This is a cross-sectional schematic diagram designed to highlight the connection structure of the reinforcing plate.

[0029] Explanation of reference numerals in the attached drawings: 1. Web plate; 11. Horizontal plate; 12. Connecting plate; 121. Inner plate; 122. Outer plate; 123. Bolt; 124. Reinforcing rib; 125. Fixing plate; 126. Opening; 127. Threaded hole; 13. Reinforcing plate; 14. Roller; 15. Side force block; 151. Through hole; 16. Inclined plate; 161. Mounting hole; 17. Mounting plate; 171. Connecting hole. Detailed Implementation

[0030] The present application will be further described in detail below with reference to all the accompanying drawings.

[0031] This application discloses an F-shaped channel steel for use in forklift masts. Example

[0032] Reference Figure 1 and Figure 2 An F-type channel steel for use in forklift masts includes two parallel webs 1, with a transverse plate 11 fixed between them. The two webs 1 are connected together by the transverse plate 11, which also improves the connection strength of the webs 1. A connecting plate 12 is provided on the side of each web 1 that is close to each other. The connecting plate 12 includes an inner plate 121, an outer plate 122, and bolts 123. The outer plate 122 is located on the side of each web 1 that is close to each other. A groove is formed on the surface of the web 1, and the outer plate 122 slides along the direction of the groove with the web 1. The inner plate 121 is inserted into the outer plate 122. The inner plate 121 can be slid along the width of the outer plate 122 to change the size of the connecting plate 12, adapting to different usage requirements and improving the flexibility of the channel steel. The inner plate 121 has several threaded holes 127 on its surface. Bolts 123 pass through the outer plate 122 and are threadedly connected to any of the threaded holes 127. After the length of the connecting plate 12 is adjusted, the length of the connecting plate 12 is fixed by the cooperation of the bolts 123 and the threaded holes 127 on the inner plate 121, thereby improving the structural stability.

[0033] Reference Figure 1 and Figure 2 A reinforcing plate 13 is fixed on the outer side of the web 1. The reinforcing plate 13 is telescopic and parallel to the connecting plate 12. The reinforcing plate 13, the connecting plate 12 and the web 1 together form an F-shaped channel steel. The F-shaped channel steel takes the web 1 as the core load-bearing unit and is arranged perpendicular to the load direction, directly bearing the pressure and tension. The reinforcing plate 13 and the connecting plate 12 bear and disperse these forces, and evenly transmit the pressure and tension to the entire portal frame structure, reducing deformation or damage caused by local stress concentration and improving the stability of the channel steel.

[0034] Reference Figure 2 The web plate 1 has a groove on its surface. The connecting plate 12 is slidably connected to the web plate 1 along the length of the groove. A threaded rod is fixed on the side of the connecting plate 12 near the cross plate 11. The groove limits the connecting plate 12, allowing it to slide within the groove. The sliding threaded rod causes the connecting plate 12 to slide, thereby adjusting the dimensions of the channel steel structure to adapt to different forklift mast usage requirements. A fixing nut is provided at the end of the threaded rod away from the connecting plate 12. The threaded rod passes through the cross plate 11 and is threadedly connected to the fixing nut. After adjustment, rotating the fixing nut causes it to be threadedly connected to the threaded rod, reducing the movement of the threaded rod and thus reducing the movement of the connecting plate 12 after adjustment, improving the stability of the channel steel.

[0035] Reference Figure 1 The connecting plate 12 is provided with a number of reinforcing ribs 124 on the side away from the reinforcing plate 13. The reinforcing ribs 124 are evenly distributed along the length of the connecting plate 12 and are fixedly connected to the connecting plate 12. When the web 1 is subjected to shear force, the reinforcing ribs 124 can disperse the shear stress. The reinforcing ribs 124 and the connecting plate 12 are fixedly connected to form an integral force-bearing structure, so that the shear force is more evenly distributed between the connecting plate 12 and the reinforcing ribs 124. At the same time, when a certain part of the web 1 is subjected to large stress, the reinforcing ribs 124 can provide additional support, reduce the probability of excessive deformation of that part, and improve the stability of the channel steel.

[0036] Reference Figure 1 A fixing plate 125 is fixed between two adjacent reinforcing ribs 124. The design of the fixing plate 125 effectively improves the bending stiffness between adjacent reinforcing ribs 124. An opening 126 is provided on the surface of the fixing plate 125. The design of the opening 126 can reduce the amount of material used in the fixing plate 125, and can significantly reduce the weight of the fixing plate 125 while ensuring structural strength. At the same time, the opening 126 makes it easier for the operator in the cab to see the surrounding environment more clearly, reduces the obstruction of the operator's line of sight, and improves the convenience of using the equipment.

[0037] Reference Figure 1 An inclined plate 16 is fixed at the lower end of the web plate 1. The inclined plate 16 is inclined and has mounting holes 161 on its surface. The inclined angle design of the inclined plate 16 can make the position of the mounting holes 161 fit the connection interface of the external structure more closely, reduce the probability of misalignment of bolt holes 123 due to angle deviation when installing the vertical web plate 1, and improve the convenience of connecting the web plate 1.

[0038] Reference Figure 1 Two rollers 14 are provided at the upper end of the web plate 1, located at both ends of the cross plate 11. The rollers 14 provide support for subsequent installation, improving the flexibility of equipment use. A mounting plate 17 is fixed to the lower end of the web plate 1. The mounting plate 17 is used to mount the hydraulic cylinder. A connecting hole 171 is provided on the surface of the mounting plate 17. When installing the hydraulic cylinder, the mounting plate 17 provides a support point for the cylinder. Fasteners are used to firmly fix the cylinder to the mounting plate 17 through the connecting hole 171, reducing the probability of the cylinder loosening or falling off due to vibration or external force during operation. The design of the connecting hole 171 also facilitates subsequent disassembly and maintenance. When the hydraulic cylinder needs to be inspected, replaced, or adjusted, it can be easily removed from the mounting plate 17 simply by loosening the fasteners, improving the maintainability and operability of the equipment.

[0039] Reference Figure 1 Several lateral force blocks 15 are fixed on the side of the two webs 1 that are far apart from each other. The lateral force blocks 15 are evenly distributed along the length of the webs 1. The arrangement of the lateral force blocks 15 effectively enhances the lateral force performance of the webs 1. When the structure is subjected to lateral loads, the lateral force blocks 15 can share part of the load, reduce the stress on the webs 1 themselves, thereby improving the lateral bearing capacity of the entire structure, making the structure more stable and reliable in complex stress environments, and able to withstand greater lateral forces. Several through holes 151 are opened on the surface of the lateral force blocks 15. The through holes 151 are evenly distributed along the width of the lateral force blocks 15. The through holes 151 facilitate the subsequent fixing of pipelines and improve the convenience of use.

[0040] The implementation principle of an F-type channel steel applied to a forklift mast in this application embodiment is as follows: the horizontal plate 11 supports two connecting plates 12, the connecting plates 12 and the reinforcing plate 13 are arranged in parallel, together with the web plate 1 to form the F-type channel steel. The reinforcing plate 13 of the F-type channel steel is arranged parallel to the web plate 1, which can directly bear and disperse these forces, and evenly transmit the pressure and tension to the entire mast structure. When the structure is subjected to lateral load, the lateral force block 15 shares part of the load, reduces the stress burden on the web plate 1 itself, reduces the deformation or damage caused by local stress concentration, thereby improving the lateral bearing capacity of the entire structure and improving the stability of the channel steel.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An F-type channel steel for use in forklift masts, comprising two parallel webs (1), characterized in that: A transverse plate (11) is fixed between the two web plates (1). A connecting plate (12) is provided on the side of the two web plates (1) that are close to each other. The connecting plate (12) is telescopically oriented and is slidably connected to the web plate (1) along the width direction of the web plate (1). A reinforcing plate (13) is fixedly provided on the outer side of the web plate (1). The reinforcing plate (13) is telescopically oriented and is parallel to the connecting plate (12). Two rollers (14) are provided at the upper end of the web plate (1). The two rollers (14) are located at both ends of the transverse plate (11).

2. The F-type channel steel for use in forklift masts according to claim 1, characterized in that: The connecting plate (12) is provided with a number of reinforcing ribs (124) on the side away from the reinforcing plate (13). The number of reinforcing ribs (124) are evenly distributed along the length of the connecting plate (12), and the reinforcing ribs (124) are fixedly connected to the connecting plate (12).

3. The F-type channel steel for use in forklift masts according to claim 2, characterized in that: A fixing plate (125) is fixed between two adjacent reinforcing ribs (124), and an opening (126) is provided on the surface of the fixing plate (125).

4. The F-type channel steel for use in forklift masts according to claim 1, characterized in that: The connecting plate (12) includes an inner plate (121), an outer plate (122), and bolts (123). The outer plate (122) is located on one side of the two web plates (1) that are close to each other. The surface of the web plate (1) is provided with a sliding groove. The outer plate (122) is slidably connected to the web plate (1) along the direction of the sliding groove. The inner plate (121) is inserted into the outer plate (122) and is slidably connected to the outer plate (122) along the width direction of the outer plate (122). The surface of the inner plate (121) is provided with a plurality of threaded holes (127). The bolts (123) pass through the outer plate (122) and are threadedly connected to any of the threaded holes (127).

5. The F-type channel steel for use in forklift masts according to claim 1, characterized in that: The web plate (1) has a groove on its surface. The connecting plate (12) is slidably connected to the web plate (1) along the length of the groove. A threaded rod is fixed on the side of the connecting plate (12) near the horizontal plate (11). A fixing nut is provided at the end of the threaded rod away from the connecting plate (12). The threaded rod passes through the horizontal plate (11) and is threadedly connected to the fixing nut.

6. The F-type channel steel for use in forklift masts according to claim 1, characterized in that: Several lateral force blocks (15) are fixed on the side of the two web plates (1) that are far apart from each other. The lateral force blocks (15) are evenly distributed along the length of the web plate (1). The lateral force blocks (15) are used to strengthen the lateral force of the web plate (1). Several through holes (151) are opened on the surface of the lateral force blocks (15). The several through holes (151) are evenly distributed along the width of the lateral force blocks (15).

7. The F-type channel steel for use in forklift masts according to claim 1, characterized in that: An inclined plate (16) is fixedly provided at the lower end of the web (1), and an installation hole (161) is provided on the surface of the inclined plate (16).

8. The F-type channel steel for use in forklift masts according to claim 1, characterized in that: The lower end of the web (1) is fixed with a mounting plate (17), which is used to mount the oil cylinder. The mounting plate (17) has a connecting hole (171) on its surface.

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