Forklift portal frame

Abstract

The utility model provides a forklift portal frame which comprises an inner portal frame and an outer portal frame, first push rod components connected with the inner portal frame are symmetrically distributed in the outer portal frame, pallet fork pieces are arranged in the inner portal frame, a displacement driving assembly is arranged in the inner portal frame and comprises a lead screw component and a driver, and the two pallet fork pieces are distributed at the two ends of the lead screw component; when the driver is started, the two sets of pallet fork pieces can move in the rotating direction of the lead screw component, so that the distance between the two sets of pallet fork pieces is changed according to the width of goods, a supporting plate provided with a material pushing assembly is further arranged in the inner portal frame, and when the pallet fork pieces drive the goods to move to the loading position under the cooperation of the first push rod component and the inner portal frame, the material pushing assembly is arranged on the supporting plate. And a baffle component in the material pushing assembly abuts against the goods and pushes the goods under the cooperation of a second push rod component, the goods are made to be away from the pallet fork piece under the cooperation of the baffle component, so that the unloading operation of the goods is achieved, potential safety hazards existing during manual unloading are avoided, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of forklifts, in particular to a forklift mast. BACKGROUND

[0002] The forklift mast is a vertical frame structure at the front of the forklift, which is used for mounting a fork piece to realize the lifting and stacking of goods. However, the existing forklift mast with the fork piece only has the function of lifting and does not have the function of unloading. The forklift operator needs to rely on other tools or manual operation to complete the unloading of goods, thereby increasing the operation steps, increasing the safety risk of the workplace and reducing the work efficiency. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at solving the above-mentioned problems and provides a forklift mast.

[0004] The technical scheme of the application is implemented as follows:

[0005] The application provides a forklift mast, which comprises an inner mast and an outer mast, the outer mast is internally symmetrical with a first push rod component, the piston end of the first push rod component is connected with the inner mast, the inner mast is internally provided with a fork piece, the inner mast is internally provided with a displacement driving assembly, the displacement driving assembly comprises a lead screw component and a driver, the lead screw component is rotationally arranged in the inner mast, the driver is arranged on the outer side of the inner mast and connected with the lead screw component through a shaft coupling, and the fork piece is provided with two groups of symmetrically distributed ends of the lead screw component;

[0006] The inner mast is further provided with a support plate, the support plate is located below the displacement driving assembly, the support plate is provided with a pushing assembly, the pushing assembly comprises a second push rod component and a baffle component, the second push rod component is arranged on the side of the support plate away from the fork piece, the piston end of the second push rod component penetrates through the support plate and is connected with the baffle component, and the baffle component is made to approach or move away from the support plate through the cooperation of the second push rod component.

[0007] The baffle component is located between the two groups of fork pieces.

[0008] The lead screw component is provided with two groups of symmetrically distributed threads, and the two groups of fork pieces are respectively located on the two groups of threads.

[0009] In an embodiment, the forklift mast further comprises a pressing assembly, the pressing assembly is located at the top of the inner mast, the pressing assembly comprises a bearing seat, a third push rod component and a pressing plate, the bearing seat is arranged at the top of the inner mast, the third push rod component is arranged at the top of the bearing seat, and the pressing plate is located between the bearing seat and the fork piece and connected with the piston end of the third push rod component.

[0010] The pressing plate is made to approach or move away from the fork piece through the cooperation of the third push rod component.

[0011] In an embodiment, the top of the inner door frame is provided with two sets of symmetrically distributed clamping grooves, and the bottom of the bearing seat is provided with protruding parts corresponding to the positions of the clamping grooves.

[0012] By embedding the protruding parts into the clamping grooves, the bearing seat is installed on the inner door frame, and by moving the protruding parts in the clamping grooves, the bearing seat drives the third push rod part to change the position height.

[0013] In an embodiment, the baffle part includes a fixed plate and a movable plate, the fixed plate is connected with the second push rod part, the inside of the fixed plate is provided with two accommodation grooves on both sides, and the movable plate is provided with two sets of movable plates and is arranged in the two accommodation grooves, respectively.

[0014] By moving the movable plate in the accommodation groove, the overall length of the baffle part is changed synchronously.

[0015] In an embodiment, the pressing assembly further includes a side plate, the pressing plate is provided with a mounting groove on the side facing the fork part, and the mounting groove is provided with a plurality of mounting grooves and is uniformly distributed along the length direction of the pressing plate.

[0016] The side plate has a clamping block, by embedding the clamping block into the mounting groove, the side plate is installed on the pressing plate, when two sets of mounting grooves are installed with side plates, two sets of side plates form a clamping area for accommodating goods.

[0017] In an embodiment, the pressing assembly further includes a latch part, the inner door frame is provided with a mounting hole extending to the clamping groove on both sides, the protruding part is provided with a through hole with the same hole diameter as the mounting hole, and the through hole is provided with a plurality of through holes and is spaced apart along the length direction of the protruding part.

[0018] When one set of through holes is aligned with the mounting hole, the latch part passes through the mounting hole and the through hole.

[0019] In an embodiment, the fixed plate is provided with a plurality of spaced apart grooves, and the plurality of grooves form anti-skid lines on the fixed plate.

[0020] In an embodiment, the mounting groove is provided with a magnetic layer, and the clamping block is made of magnetic material, by the cooperation of the magnetic layer, the clamping block is magnetically connected to the mounting groove.

[0021] The advantages or beneficial effects of the above technical solutions at least include:

[0022] This application discloses a forklift mast that, based on the required cargo size, uses a drive unit and a lead screw assembly to move two sets of forks located on the lead screw assembly relative to each other in the direction of rotation of the lead screw assembly, thereby placing the cargo on the two sets of forks. Since the inner mast where the forks are mounted is connected to a first push rod assembly of the outer mast, the position of the inner mast is adjusted by the first push rod assembly, causing the forks to move the cargo to the required loading height. Subsequently, a second push rod assembly in the push rod assembly moves a baffle assembly, causing the baffle assembly to abut against the cargo and push it away from the forks, thus completing the cargo unloading operation. Through the cooperation of the displacement drive assembly and the pushing assembly, the adjustment of the fork distance and the pushing operation of the cargo can be achieved without manual intervention, thereby solving the problem of existing forklift masts requiring manual intervention for cargo unloading, which leads to risks, and improving production efficiency. Attached Figure Description

[0023] The accompanying drawings illustrate exemplary embodiments of the present application and, together with the description thereof, serve to explain the principles of the present application. These drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification.

[0024] Figure 1 A structural schematic diagram of a forklift mast according to an embodiment of this application is shown;

[0025] Figure 2 A structural schematic diagram of the forklift mast according to an embodiment of this application is shown from another perspective;

[0026] Figure 3 A structural schematic diagram of the gantry in an embodiment of this application is shown;

[0027] Figure 4 Examples of this application are presented. Figure 3 Enlarged view of point A in the middle;

[0028] Figure 5 Examples of this application are presented. Figure 3 Enlarged view of point B in the middle;

[0029] Figure 6 A structural schematic diagram of the side plate according to an embodiment of this application is shown;

[0030] Reference numerals: 1. Inner mast; 11. Fork assembly; 12. Support plate; 13. Slot; 14. Mounting hole;

[0031] 2. Outer gantry; 21. First push rod assembly;

[0032] 3. Displacement drive assembly; 31. Lead screw assembly; 311. Thread; 32. Driver;

[0033] 4, pushing assembly; 41, second pushing rod component; 42, baffle component; 421, fixed plate; 4211, accommodating groove; 4212, groove; 422, movable plate; 4221, baffle ring;

[0034] 5, pressing assembly; 51, bearing seat; 511, protruding part; 5111, through hole; 52, third pushing rod component; 53, pressing plate; 531, mounting groove; 5311, magnetic layer; 54, side plate; 541, clamping block; 55, latch. DETAILED DESCRIPTION

[0035] Embodiments of the present application will be described in more detail with reference to the drawings. While several embodiments of the application are shown in the drawings, it is understood that the application can be embodied in various forms and should not be construed as limited to the embodiments set forth in the description. Rather, these embodiments are provided as a full and enabling disclosure of the application, and to fully and completely convey the scope of the application to those skilled in the art. It is understood that the drawings and detailed description thereto are not to be interpreted as limiting the scope of the application.

[0036] It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0037] It should be understood that the term "comprising" and its variants used in the present application are open and inclusive, i.e., "including but not limited to". The term "based on" is "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Related definitions of other terms will be given in the following description. It should be noted that the "first", "second", etc. concepts mentioned in the present application are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0038] It should be noted that the modification of "one" or "several" mentioned in the present application is illustrative and not restrictive, and those skilled in the art should understand that unless the context clearly indicates otherwise, it should be understood as "one or more".

[0039] The names of the messages or information exchanged between the devices in the embodiments of the present application are only for illustrative purposes, and are not used to limit the scope of the messages or information.

[0040] Reference Figures 1-5The application discloses a forklift mast, which comprises an inner mast 1 and an outer mast 2, one end of the outer mast 2 is connected with a machine body of a forklift, a first push rod component 21 is symmetrically distributed in the outer mast 2, a piston end of the first push rod component 21 is connected with the inner mast 1, the inner mast 1 is provided with a fork piece 11, when the first push rod component 21 pushes the inner mast 1, the height of the fork piece 11 is changed, a displacement driving assembly 3 is arranged in the inner mast 1, the displacement driving assembly 3 comprises a screw rod component 31 and a driver 32, the driver 32 is a servo driving motor in the prior art, the driver 32 provides power for rotation of the screw rod component 31, the screw rod component 31 is rotationally arranged in the inner mast 1, a screw rod bearing seat is arranged at the connection position of the screw rod component 31 and the inner mast 1, the driver 32 is arranged outside the inner mast 1 and is connected with the screw rod component 31 through a shaft coupling, the fork piece 11 is provided with two groups of symmetrically distributed ends of the screw rod component 31, the cooperation of the driver 32 and the screw rod component 31 can drive the fork piece 11 to change position, thereby being applicable to goods of different widths.

[0041] The inner mast 1 is further provided with a supporting plate 12, the supporting plate 12 is located below the displacement driving assembly 3, the supporting plate 12 is provided with a pushing assembly 4, the pushing assembly 4 comprises a second push rod component 41 and a baffle component 42, the second push rod component 41 is arranged on a side of the supporting plate 12 away from the fork piece 11, a piston end of the second push rod component 41 penetrates through the supporting plate 12 and is connected with the baffle component 42, through cooperation of the second push rod component 41, the baffle component 42 is close to or away from the supporting plate 12, when goods are placed on the fork piece 11, the baffle component 42 can push the goods through control of the second push rod component 41.

[0042] The baffle component 42 is located between the two groups of fork pieces 11, so that the baffle component 42 avoids collision with the fork pieces 11 when pushing the goods.

[0043] The screw rod component 31 is provided with two groups of symmetrically distributed threads 311, the two groups of fork pieces 11 are respectively located on the two groups of threads 311, and the two groups of opposite threads 311 can make the two groups of fork pieces 11 close to or away from each other.

[0044] Based on the above structure, the inner door frame 1 is moved to a suitable position by the first push rod component 21, and the lead screw component 31 is driven to rotate by the driver 32, so that the two groups of fork pieces 11 at both ends of the lead screw component 31 can move relatively according to the width of the goods to be carried, and then the fork pieces 11 carry the goods and the first push rod component 21 moves the inner door frame 1 again, so that the fork pieces 11 on the inner door frame 1 drive the goods to change position, when the goods move to the position where they need to be loaded, the second push rod component 41 of the pushing assembly 4 controls the movement of the baffle component 42, so that the baffle component 42 moves from one side of the goods, and then the second push rod component 41 extends, so as to adjust the pushing distance, so as to push the goods to the position where they need to be placed, so as to complete the unloading operation of the goods. Through the cooperation of the displacement driving assembly 3 and the pushing assembly 4, the distance between the two groups of fork pieces 11 can be adjusted according to the condition of the goods, and the unloading operation of the goods can be realized, the participation of manual labor is reduced, the safety hidden danger existing in manual unloading is reduced, and the production efficiency is improved.

[0045] The first push rod component 21 and the second push rod component 41 are selected from the hydraulic push rod in the prior art.

[0046] In one embodiment, with reference to Figure 1 、 Figure 2 、 Figure 3 and Figure 5 , the pressing assembly 5 is arranged on the top of the inner door frame 1, and the pressing assembly 5 is used to limit the goods from the top, the pressing assembly 5 comprises a bearing seat 51, a third push rod component 52 and a pressing plate 53, the bearing seat 51 is arranged on the top of the inner door frame 1, the third push rod component 52 is arranged on the top of the bearing seat 51, the third push rod component 52 is a hydraulic push rod or an electric push rod in the prior art, and the pressing plate 53 is arranged between the bearing seat 51 and the fork piece 11 and connected with the piston end of the third push rod component 52.

[0047] Through the cooperation of the third push rod component 52, the pressing plate 53 is close to or away from the fork piece 11, when the goods are placed on the fork piece 11, the third push rod component 52 drives the pressing plate 53 to extrude the goods from above, so that the goods are located between the pressing plate 53 and the fork piece 11, and the goods are limited, so as to facilitate the pushing assembly 4 to exert a transverse pushing force on the goods, and realize the stability when pushing the goods.

[0048] The top of the inner door frame 1 is provided with two groups of symmetrically distributed clamping grooves 13, the bottom of the bearing seat 51 is provided with a protruding part 511 corresponding to the position of the clamping groove 13, the bearing seat 51 is installed on the inner door frame 1 by embedding the protruding part 511 into the clamping groove 13, the bearing seat 51 drives the third push rod part 52 to change the position height by moving the protruding part 511 in the clamping groove 13, the position of the pressing plate 53 is adjusted by changing the position of the third push rod part 52 through the movement of the bearing seat 51 in the clamping groove 13, because the pressing plate 53 is connected with the third push rod part 52, so that the pressing assembly 5 can be applied to goods of different heights and improve the flexibility of use.

[0049] In one embodiment, referring to Figure 1 、 Figure 3 and Figure 4 , the baffle part 42 includes a fixed plate 421 and a movable plate 422, the fixed plate 421 is connected with the second push rod part 41, and the inside of the fixed plate 421 is provided with two accommodation grooves 4211, the movable plate 422 is provided with two groups and is movably arranged in the two accommodation grooves 4211, the overall length of the baffle part 42 is changed synchronously by moving the movable plate 422 in the accommodation groove 4211, the baffle part 42 is used to directly contact and push the goods, the baffle part 42 is composed of the fixed plate 421 and the movable plate 422, so the part of the fixed plate 421 and the movable plate 422 outside the fixed plate 421 constitutes the overall length of the baffle part 42, so that the length of the baffle part 42 can be adjusted according to the width of the goods, thereby improving the flexibility of the baffle part 42 and facilitating better pushing of the goods.

[0050] In one embodiment, referring to Figure 1 、 Figure 3 、 Figure 5 and Figure 6 , the pressing assembly 5 further includes a side plate 54, the pressing plate 53 is provided with a mounting groove 531 on the side facing the fork 11, the mounting groove 531 is provided with a plurality of mounting grooves 531 and is uniformly distributed along the length direction of the pressing plate 53, the side plate 54 has a clamping block 541, the side plate 54 is installed on the pressing plate 53 by embedding the clamping block 541 into the mounting groove 531, when two groups of mounting grooves 531 are installed with the side plate 54, the two groups of side plates 54 form a clamping area for accommodating the goods, because the fork 11 and the pressing plate 53 only clamp the bottom and top of the goods, in order to avoid the goods from falling from the left and right sides during the carrying process, the goods can be located on the left and right sides of the goods by the setting of the side plate 54, so that the goods can be limited, further avoiding the goods from falling, and the setting of the plurality of mounting grooves 531 can adjust the width of the goods, thereby improving the flexibility of the side plate 54 during installation;

[0051] The installation groove 531 is provided with a magnetic layer 5311, and the clamping block 541 is made of magnetic material. The clamping block 541 is magnetically connected to the installation groove 531 through cooperation of the magnetic layer 5311. The magnetic connection mode can stably install the clamping block 541 in the installation groove 531, and the clamping block 541 can be quickly adsorbed when located in the installation groove 531 through the magnetic form, thereby improving the convenience during installation.

[0052] In one embodiment, referring to Figure 1 、 Figure 3 and Figure 5 , the pressing assembly 5 further comprises a plug 55, the inner door frame 1 is provided with an installation hole 14 extending to the clamping groove 13 on both sides, the protruding part 511 is provided with a through hole 5111 with the same hole diameter as the installation hole 14, the through hole 5111 is provided with a plurality of through holes and is distributed along the length direction of the protruding part 511, when one group of through holes 5111 is aligned with the installation hole 14, the plug 55 passes through the installation hole 14 and the through hole 5111, and the inner door frame 1 and the bearing seat 51 can be limited through the installation of the plug 55, thereby avoiding the shaking of the bearing seat 51 during the pressing operation of the goods, and causing the position deviation of the bearing seat 51 driving the third push rod part 52.

[0053] In one embodiment, referring to Figure 1 、 Figure 3 and Figure 4 , the fixed plate 421 is provided with a plurality of spaced grooves 4212, and the plurality of grooves 4212 form anti-skid lines on the fixed plate 421. Since the fixed plate 421 is used to directly contact the goods, the friction between the fixed plate 421 and the goods can be improved through the plurality of grooves 4212, thereby avoiding the sliding of the goods when the fixed plate 421 contacts the goods.

[0054] In one embodiment, referring to Figure 1 、 Figure 3 and Figure 4 , the end of the movable plate 422 away from the fixed plate 421 is provided with a stop ring 4221, and when the movable plate 422 approaches the fixed plate 421, the stop ring 4221 abuts against the end surface of the movable plate 422. The stop ring 4221 can prevent the movable plate 422 from being completely embedded in the fixed plate 421, so that the movable plate 422 is partially located outside the fixed plate 421, and the operator can easily pull the movable plate 422.

[0055] In the description of the application, it needs to be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0056] Those skilled in the art should understand that the above embodiments are only for clearly illustrating the application, and are not intended to limit the scope of the application. Based on the above disclosure, other changes or modifications can also be made by those skilled in the art, and these changes or modifications are still within the scope of the application.

Claims

1. A fork truck mast comprising an inner mast and an outer mast, a first push rod member being symmetrically disposed within the outer mast, a piston end of the first push rod member being connected to the inner mast, the inner mast having a fork member therein, characterized by: The inner door frame is internally provided with a displacement driving assembly, the displacement driving assembly comprises a screw rod component and a driver, the screw rod component is rotationally arranged in the inner door frame, the driver is arranged outside the inner door frame and is connected with the screw rod component through a shaft coupling, and the fork pieces are provided in two groups and are symmetrically distributed at two ends of the screw rod component; The inner door frame is further provided with a support plate, the support plate is located below the displacement driving assembly, the support plate is provided with a pushing assembly, the pushing assembly comprises a second push rod component and a baffle component, the second push rod component is arranged on a side of the support plate away from the fork pieces, a piston end of the second push rod component is connected with the baffle component through the support plate, and the baffle component is made to approach or move away from the support plate through cooperation of the second push rod component. The baffle component is located between the two groups of fork pieces. The screw rod component is provided with two groups of symmetrically distributed threads, and the two groups of fork pieces are respectively located on the two groups of threads.

2. The fork truck mast according to claim 1, wherein: Further comprising a pressing assembly, the pressing assembly is located at the top of the inner door frame, the pressing assembly comprises a bearing seat, a third push rod component and a pressing plate, the bearing seat is arranged at the top of the inner door frame, the third push rod component is arranged at the top of the bearing seat, and the pressing plate is located between the bearing seat and the fork pieces and is connected with a piston end of the third push rod component. Through cooperation of the third push rod component, the pressing plate is made to approach or move away from the fork pieces.

3. The fork truck mast according to claim 2, wherein: The top of the inner door frame is provided with two groups of symmetrically distributed clamping grooves, and the bottom of the bearing seat is provided with a protruding portion corresponding to the positions of the clamping grooves; By embedding the protruding portion into the clamping groove, the bearing seat is installed on the inner door frame, and by moving the protruding portion in the clamping groove, the bearing seat drives the third push rod component to change the position height.

4. The fork truck mast according to claim 1, wherein: The baffle component comprises a fixed plate and a movable plate, the fixed plate is connected with the second push rod component, both sides of the fixed plate are provided with accommodating grooves, and the movable plate is provided in two groups and is movably arranged in the two groups of accommodating grooves. Through movement of the movable plate in the accommodating groove, the overall length of the baffle component is synchronously changed.

5. The fork truck mast according to claim 2, wherein: The pressing assembly further comprises a side plate, one side of the pressing plate towards the fork pieces is provided with a mounting groove, and the mounting groove is provided with a plurality of mounting grooves and is uniformly distributed along the length direction of the pressing plate. The side plate is provided with a clamping block, the clamping block is embedded in the mounting groove, so that the side plate is installed on the pressing plate, and when two groups of the mounting grooves are provided with side plates, the two groups of side plates form a clamping area for accommodating goods.

6. The fork truck mast according to claim 3, wherein: The pressing assembly further comprises a latch piece, both sides of the inner door frame are provided with mounting holes extending to the clamping grooves, the protruding portion is provided with through holes with the same hole diameter as the mounting holes, and the through holes are provided with a plurality of through holes and are spaced apart along the length direction of the protruding portion. When one group of the through holes is aligned with the mounting hole, the latch piece passes through the mounting hole and the through hole.

7. The fork truck mast according to claim 4, wherein: A plurality of grooves are spaced apart on the fixed plate, and the grooves form anti-skid lines on the fixed plate.

8. The fork truck mast according to claim 5, wherein: The installation slot is provided with a magnetic layer, and the clamping block is made of magnetic material. Through cooperation of the magnetic layer, the clamping block is magnetically connected to the installation slot.

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