Light double-stretching pallet fork

Abstract

The utility model provides a light double-stretching pallet fork which comprises a fork body assembly and a driving assembly, the fork body assembly comprises an upper fork, an upper middle fork, a lower middle fork, a lower fork and a mounting bottom plate, the upper fork is connected with the upper middle fork in a sliding mode, the upper middle fork is connected with the lower middle fork in a sliding mode, the lower middle fork is connected with the lower fork in a sliding mode, and the driving assembly is arranged on the mounting bottom plate. The lower fork is fixedly connected with the mounting bottom plate; the driving assembly is installed in combination with the upper middle fork, the lower middle fork, the lower fork and the installation bottom plate and drives the upper fork, the upper middle fork and the lower middle fork to stretch out and draw back relative to the lower fork. The light double-stretching pallet fork is lighter in weight, smaller in size, capable of being matched with more types of pallets and goods shelves, suitable for narrower space and lower in use cost.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics warehousing, and more precisely, to a light double-extending fork. Background Art

[0002] With the continuous increase in the volume of logistics freight and warehoused goods, the popularity of automated stereoscopic warehouses has gradually increased. Automated stereoscopic warehouses can increase the storage capacity by adding vertical storage space on the same site area, and can efficiently pick and place goods through an automated system. The use of automated stereoscopic warehouses helps to shorten the logistics time, save logistics costs, and improve logistics efficiency.

[0003] The stacker is an important transfer device in an automated stereoscopic warehouse. The telescopic fork is the execution device at the end of the stacker. The operating efficiency and stability of the telescopic fork are crucial for the operating efficiency and stability of the stacker. The double-extending fork generally includes three fork bodies: the lower fork, the middle fork, and the upper fork. When moving goods, the lower fork remains stationary, and the middle fork and the upper fork are extended to increase the length of the fork, thereby realizing the handling of large-volume goods. Most of the existing double-extending forks are thick and heavy. When the goods to be transferred are light, there will be a situation of resource waste, and they occupy a large space, cannot be applied to narrow spaces, and the adaptability to different specifications of pallets and shelves is not ideal enough.

[0004] In summary, there is a need in the art to improve the existing double-extending fork to adapt to more specifications of pallets and shelves with a lighter weight and a smaller volume. Summary of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide a light double-extending fork, increasing the number of fork bodies, reducing the thickness and weight of a single fork body, so as to reduce the overall weight and volume.

[0006] To achieve the above purpose, the utility model provides a light double-extending fork, including a fork body assembly and a driving assembly. The fork body assembly includes an upper fork, an upper middle fork, a lower middle fork, a lower fork, and a mounting base plate. The upper fork is slidably connected to the upper middle fork, the upper middle fork is slidably connected to the lower middle fork, the lower middle fork is slidably connected to the lower fork, and the lower fork is fixedly connected to the mounting base plate. The driving assembly is combined and installed with the upper middle fork, the lower middle fork, the lower fork, and the mounting base plate to drive the upper fork, the upper middle fork, and the lower middle fork to telescope relative to the lower fork.

[0007] Preferably, it includes a detection assembly. The detection assembly is combined and installed with the lower fork, and the detection assembly detects the extension amount of the upper fork, the upper middle fork, and the lower middle fork relative to the lower fork.

[0008] Preferably, the detection assembly comprises a detection switch and an encoder installed in combination with the lower fork, and the detection switch and the encoder are both electrically connected to the controller of the light double-extension fork.

[0009] Preferably, the drive assembly includes a telescopic drive motor, a roller chain assembly, a gear assembly, a roller chain tensioning wheel assembly, a long rack, a short rack and a chain tensioning structure; the telescopic drive motor, the roller chain assembly and the gear assembly are all installed in combination with the lower fork, and the telescopic drive motor is transmission connected to the gear assembly through the roller chain assembly; the long rack is fixedly connected to the lower middle fork, and the long rack is meshed with the gear assembly; the roller chain tensioning wheel assembly is installed in combination with the lower middle fork, the short rack is fixedly connected to the upper middle fork, and the roller chain tensioning wheel assembly is transmission connected to the short rack; the upper middle fork is transmission connected to the upper fork through the chain tensioning structure.

[0010] Preferably, the upper fork is provided with an upper fork guide assembly; the lower middle fork is provided with a lower middle fork guide assembly; and the lower fork is provided with a lower fork guide assembly.

[0011] Compared with the prior art, the advantages of the light double-reach fork disclosed in the utility model are that the light double-reach fork is lighter in weight, smaller in size, can be adapted to more types of pallets and shelves, adapt to narrower spaces, and has lower use costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] like Figure 1 Shown is a structural schematic diagram of a light double-extension cargo fork of the utility model.

[0014] like Figure 2 Shown is a schematic structural diagram of a driving assembly of a light double-extension fork of the utility model.

[0015] like Figure 3 Shown is a structural schematic diagram of a detection assembly of a light double-extension fork of the utility model.

[0016] like Figure 4 Shown is a structural schematic diagram of an upper fork guide assembly of a light double-extension fork of the utility model.

[0017] like Figure 5Shown is a structural schematic diagram of a lower middle fork guide assembly of a light double-extension cargo fork of the utility model.

[0018] like Figure 6 Shown is a structural schematic diagram of a lower fork guide assembly of a light double-extension fork of the utility model. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figures 1 to 3 As shown, the present application discloses a light double-extension cargo fork, including a fork body assembly, a driving assembly and a detection assembly. The fork body assembly includes an upper fork 11, an upper middle fork 12, a lower middle fork 13, a lower fork 14 and a mounting base plate 10 connected in sequence. The upper fork 11 is slidably connected to the upper middle fork 12, the upper middle fork 12 is slidably connected to the lower middle fork 13, the lower middle fork 13 is slidably connected to the lower fork 14, and the lower fork 14 is fixedly connected to the mounting base plate 10. The driving assembly is installed in combination with the upper middle fork 12, the lower middle fork 13, the lower fork 14 and the mounting base plate 10 to drive the upper fork 11, the upper middle fork 12 and the lower middle fork 13 to extend and retract relative to the lower fork 14. The detection assembly is installed in combination with the lower fork 11 to detect the extension amount of the upper fork 11, the upper middle fork 12 and the lower middle fork 13 relative to the lower fork 14 to assist in the accurate placement and pick-up of goods.

[0021] The light double-extension fork comprises an upper fork 11, an upper middle fork 12, a lower middle fork 13, and a lower fork 14, which are thinner in thickness, have an overall lighter weight and a smaller volume, can be applied to more types of pallets and shelves, adapt to narrower spaces, and have a lower cost of use.

[0022] Specifically, the driving assembly includes a telescopic driving motor 21, a roller chain assembly 22, a gear assembly 23, a roller chain tensioning wheel assembly 24, a long rack 25, a short rack 26 and a chain tensioning structure 27; the telescopic driving motor 21, the roller chain assembly 22 and the gear assembly 23 are all installed in combination with the lower fork 14, and the telescopic driving motor 21 is transmission connected to the gear assembly 23 through the roller chain assembly 22; the long rack 25 is fixedly connected to the lower middle fork 13, and the long rack 25 is meshed with the gear assembly 23; the roller chain tensioning wheel assembly 24 is installed in combination with the lower middle fork 13, the short rack 26 is fixedly connected to the upper middle fork 12, and the roller chain tensioning wheel assembly 24 is transmission connected to the short rack 26; the upper middle fork 12 is transmission connected to the upper fork 11 through the chain tensioning structure 27.

[0023] The detection component includes a detection switch 21 and an encoder 32 that are integrally installed with the lower fork 14. Both the detection switch 21 and the encoder 32 are electrically connected to the controller of the light double-extending fork.

[0024] When the light double-extending fork is in the single-extension position, the telescopic drive motor 21 drives the gear assembly 23 to rotate through the roller chain assembly 22. The gear assembly 23 drives the roller chain tensioning wheel assembly 24, and drives the upper middle fork 12 through the short rack 26, and then drives the chain tensioning structure 27 to complete the fork extension of the upper fork 11.

[0025] When the light double-extending fork is in the double-extension position, the telescopic drive motor 21 drives the roller chain assembly 22 to rotate through the roller chain assembly 22. The gear assembly 23 drives the long rack 25, and drives the upper middle fork 12 by driving the short rack 26, and then drives the chain tensioning structure 27 to complete the fork extension of the upper fork 11.

[0026] See Figure 4 , on the upper fork 11, there is an upper fork guiding component, and the upper fork guiding component includes a plurality of upper fork guide wheels 111 and upper fork guide blocks 112 of a smaller specification.

[0027] See Figure 5 , on the lower middle fork 13, there is a lower middle fork guiding component, and the lower middle fork guiding component includes a plurality of lower middle fork guide wheels 131 and lower middle fork guide blocks 132 of a smaller specification.

[0028] See Figure 6 , on the lower fork 14, there is a lower fork guiding component, and the lower fork guiding component includes a plurality of lower fork guide wheels 141 and lower middle fork guide blocks 142 of a smaller specification.

[0029] The upper fork guiding component, the lower middle fork guiding component, and the lower fork guiding component are of a smaller specification, so that the overall fork body component is thinner, and both the weight and volume are smaller.

[0030] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lightweight double-extending forklift fork, characterized in that, It includes a fork body assembly and a driving assembly, the fork body assembly includes an upper fork, an upper middle fork, a lower middle fork, a lower fork and a mounting base, the upper fork is slidably connected to the upper middle fork, the upper middle fork is slidably connected to the lower middle fork, the lower middle fork is slidably connected to the lower fork, and the lower fork is fixedly connected to the mounting base; the driving assembly is installed in combination with the upper middle fork, the lower middle fork, the lower fork and the mounting base to drive the upper fork, the upper middle fork and the lower middle fork to extend and retract relative to the lower fork.

2. The light double-extending forklift fork according to claim 1, wherein It includes a detection component, which is installed in combination with the lower fork, and the detection component detects the extension amount of the upper fork, the upper middle fork, and the lower middle fork relative to the lower fork.

3. The light double-extending fork according to claim 2, wherein The detection assembly comprises a detection switch and an encoder which are installed in combination with the lower fork, and the detection switch and the encoder are both electrically connected to the controller of the light double-extension fork.

4. The light double-extending fork as claimed in claim 1, wherein, The driving assembly comprises a telescopic driving motor, a roller chain assembly, a gear assembly, a roller chain tensioning wheel assembly, a long rack, a short rack and a chain tensioning structure; the telescopic driving motor, the roller chain assembly and the gear assembly are all installed in combination with the lower fork, and the telescopic driving motor is transmission-connected to the gear assembly through the roller chain assembly; the long rack is fixedly connected to the lower middle fork, and the long rack is meshed with the gear assembly; The roller chain tensioner assembly is installed in combination with the lower middle fork, the short rack is fixedly connected to the upper middle fork, and the roller chain tensioner assembly is transmission connected to the short rack; the upper middle fork is transmission connected to the upper fork through the chain tensioning structure.

5. The light double-extending fork as claimed in claim 1, wherein The upper fork is provided with an upper fork guide assembly; the lower middle fork is provided with a lower middle fork guide assembly; and the lower fork is provided with a lower fork guide assembly.

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