Pallet fork with adjustable fork distance

Abstract

The utility model relates to the technical field of forks of forklifts, in particular to a fork distance adjustable fork which comprises a mounting frame, a connecting seat and two fork bodies arranged in the middle of the mounting frame in a sliding mode, a fixing strip is fixedly arranged in the mounting frame, and a fixing assembly fixedly connected with the fixing strip is arranged on each fork body. Through mutual cooperation of the fixing assembly and the driving assembly, the pallet fork body can be rapidly and fixedly connected with the fixing strip in the mounting frame, the position of the rectangular positioning block does not need to be manually adjusted for multiple times, the adjusting time of the pallet fork is greatly shortened, and the working efficiency is improved. And meanwhile, when the fixing assembly is in the initial state, the pallet fork body can smoothly slide in the middle of the fixing strip, so that the relative distance between the pallet forks can be conveniently adjusted, the whole pallet fork body and the fixing assembly can be rapidly detached and replaced, the small forklift adjusting fork is suitable for different working scenes, and the use range of the small forklift adjusting fork is greatly widened.

Description

Technical Field

[0001] The utility model relates to the technical field of forklift cargo forks, in particular to a cargo fork with adjustable fork distance. Background Art

[0002] Forks with adjustable fork distance are also called adjustable forks. They are suitable for various occasions such as machinery, ports, ceramics, building materials, agriculture, etc. with irregular cargo yards and no specified pallets. By adjusting the distance between two adjacent forks, goods on pallets of different specifications can be transported without frequent replacement of different types of fixed forks, which reduces the labor intensity of operators, improves work efficiency, and reduces damage to pallets and goods.

[0003] Although most of the adjustable forks currently used in factories can adjust the fork distance through hydraulic devices, this type of adjustable fork with hydraulic adjustment is expensive, has many hydraulic accessories, and has high subsequent maintenance costs. It is suitable for use in large forklifts in larger factories. For small forklifts in ordinary factories, the adjustable fork is generally adjusted manually. First, the appropriate fork placement position is found through the positioning column, and then the positioning block is inserted to achieve the adjustable fork distance between two adjacent forks. Although this adjustment method is simple and low in cost, it has more operating steps. For this reason, a fork with adjustable fork distance is proposed. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a cargo fork with adjustable fork distance, which solves the technical problem that the adjustable distance fork used in a small forklift has a slow adjustment speed.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a fork with adjustable fork distance, comprising a mounting frame, a connecting seat and two fork bodies slidably arranged in the middle of the mounting frame, a fixing bar is fixedly arranged in the mounting frame, and a fixing assembly fixedly connected to the fixing bar is arranged on the fork body;

[0006] The fixing assembly includes a squeezed plate arranged above the fork body and a positioning column slidably arranged inside the fork body, the upper end of the fixing bar is provided with a cylindrical recessed hole used to cooperate with the positioning column, the squeezed plate and the positioning column are fixedly arranged by a connecting rod, a return spring is sleeved on the middle part of the connecting rod and located between the fork body and the squeezed plate, and a driving assembly for driving the squeezed plate to move is arranged in the mounting frame.

[0007] Preferably, the fixing assembly further comprises a rotating shaft rotatably arranged on the fork body and a rectangular positioning block slidably arranged inside the fork body, two rotating rods are symmetrically rotatably arranged on the rotating shaft, extrusion rods are rotatably arranged at the lower ends of the two rotating rods, and a fixed shaft is fixedly arranged between the two rotating rods;

[0008] A plurality of rectangular through holes for use with rectangular positioning blocks are provided in the middle of the fixing strip, a connecting plate is fixed on the rectangular positioning block, two U-shaped limit blocks are symmetrically fixed on the upper end of the connecting plate, and the two ends of the extrusion rod are slidably arranged on the inner side of the U-shaped limit block;

[0009] A lower pressing rod is also fixedly provided at the lower end of the squeezed plate, a rectangular squeezing shell is fixedly provided at the lower end of the lower pressing rod and located between the two rotating rods, the fixed shaft is slidably arranged inside the rectangular squeezing shell, and a return spring is also sleeved at the middle part of the lower pressing rod and located between the fork body and the squeezed plate.

[0010] Preferably, the driving assembly includes a driving shaft rotatably disposed in a mounting frame, a plurality of driving cams are fixedly disposed on the driving shaft, an operating handle is fixedly disposed in the middle portion of the driving shaft outside the mounting frame, and the operating handle is fixedly connected to the mounting frame via a positioning pin.

[0011] Preferably, a cylindrical sliding cavity is provided inside the fork body to facilitate the sliding of the positioning column.

[0012] Preferably, the number of the driving cams is the same as the number of the rectangular through holes.

[0013] Preferably, a protective shell for protecting the entire fixing assembly is provided in the middle of the fork body.

[0014] Preferably, a waterproof shell is fixedly provided on the mounting frame.

[0015] By means of the above technical solution, the utility model provides a fork with adjustable fork distance, which has at least the following beneficial effects:

[0016] 1. The utility model can make the fork body quickly fixedly connected with the fixing bar in the installation frame through the cooperation of the fixing assembly and the driving assembly, without the need to manually adjust the position of the rectangular positioning block for many times, which greatly speeds up the adjustment time of the fork. At the same time, when the fixing assembly is in the initial state, the fork body can smoothly slide in the middle of the fixing bar, which not only facilitates the adjustment of the relative distance between the forks, but also facilitates the rapid disassembly and replacement of the entire fork body and the fixing assembly, which is suitable for different working scenes and greatly increases the use range of the small forklift adjustment fork.

[0017] 2. The utility model works by squeezing the positioning column and the rectangular positioning block through the squeezed plate, so that the fixation of the fork is faster and clearer. At the same time, the integrated setting of the fixing form of the positioning column and the rectangular positioning block is conducive to quickly determining the fixed position of the fork body, without moving the fork body back and forth, reducing the actual adjustment time of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the appearance structure of the fork of the utility model;

[0020] Figure 2 This is a schematic diagram of the working structure of the drive assembly of the utility model;

[0021] Figure 3 This is a schematic diagram of the overall structure of the installation frame of the utility model;

[0022] Figure 4 This is a schematic diagram of the appearance structure of the fork body of the utility model;

[0023] Figure 5 It is a schematic diagram of the local structure of the fixing component of the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the rotating rod of the utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the rectangular positioning block of the utility model after movement.

[0026] In the figure: 1, mounting frame; 101, fixing bar; 2, connecting seat; 3, fork body; 301, protective shell; 4, fixing assembly; 5, driving assembly; 401, extruded plate; 402, positioning column; 403, connecting rod; 404, return spring; 405, rotating shaft; 406, rotating rod; 407, extrusion rod; 408, rectangular positioning block; 409, connecting plate; 410, U-shaped limit block; 411, fixed shaft; 412, pressing rod; 413, rectangular extrusion shell; 501, driving shaft; 502, driving cam; 503, operating handle. DETAILED DESCRIPTION

[0027] 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.

[0028] Embodiment 1

[0029] Please refer to Figure 1-Figure 6A fork with adjustable fork distance comprises a mounting frame 1, a connecting seat 2 and two fork bodies 3 slidably arranged in the middle of the mounting frame 1, a fixing bar 101 is fixedly arranged in the mounting frame 1, and a fixing component 4 fixedly connected to the fixing bar 101 is arranged on the fork body 3;

[0030] The fixing assembly 4 includes a squeezed plate 401 disposed above the fork body 3 and a positioning column 402 slidably disposed inside the fork body 3. A cylindrical recessed hole for cooperating with the positioning column 402 is provided at the upper end of the fixing bar 101. The squeezed plate 401 and the positioning column 402 are fixedly disposed by a connecting rod 403. A return spring 404 is sleeved at the middle of the connecting rod 403 and between the fork body 3 and the squeezed plate 401. A driving assembly 5 for driving the squeezed plate 401 to move is provided in the mounting frame 1.

[0031] First, the movement trajectory and function of the positioning column 402 are specifically as follows: when the squeezed plate 401 is squeezed by the driving assembly 5, the squeezed plate 401 will move downward as a whole, that is, the connecting rod 403 and the pressing rod 412 arranged at the lower end of the squeezed plate 401 will be driven to move downward, and at the same time, the two return springs 404 will be squeezed, thereby generating a certain deformation (providing power when the squeezed plate 401 is reset). When the connecting rod 403 moves downward, the positioning column 402 fixed at the lower end of the connecting rod 403 will move downward. When the fork body 3 moves to a suitable position, the downward pressure of the positioning column 402 will cause the fork body 3 to initially limit the position with the fixing bar 101 of the mounting frame 1, thereby facilitating the subsequent continued connection and fixing. This method of driving the positioning column 402 does not require manual upward or downward movement of the positioning column 402. The setting of the positioning column 402 also ensures that the positioning column 402 will not be lost, which is beneficial to the use of the fork as a whole.

[0032] The fixing assembly 4 further includes a rotating shaft 405 rotatably arranged on the fork body 3 and a rectangular positioning block 408 slidably arranged inside the fork body 3. Two rotating rods 406 are symmetrically rotatably arranged on the rotating shaft 405. An extrusion rod 407 is rotatably arranged at the lower ends of the two rotating rods 406. A fixed shaft 411 is fixedly arranged between the two rotating rods 406.

[0033] A plurality of rectangular through holes for use with the rectangular positioning block 408 are provided in the middle of the fixing bar 101. A connecting plate 409 is fixed on the rectangular positioning block 408. Two U-shaped limit blocks 410 are symmetrically fixed on the upper end of the connecting plate 409. Both ends of the extrusion rod 407 are slidably arranged on the inner side of the U-shaped limit blocks 410.

[0034] A lower pressing rod 412 is fixedly provided at the lower end of the pressed plate 401, a rectangular pressing shell 413 is fixedly provided at the lower end of the lower pressing rod 412 and located between the two rotating rods 406, a fixed shaft 411 is slidably provided inside the rectangular pressing shell 413, and a return spring 404 is also sleeved at the middle of the lower pressing rod 412 and located between the fork body 3 and the pressed plate 401;

[0035] The movement trajectory and function of the rectangular positioning block 408 are as follows: when the lower pressing rod 412 moves downward, the rectangular extrusion shell 413 fixed at the lower end of the lower pressing rod 412 will be driven to move downward as a whole. Since the rectangular extrusion shell 413 is provided with a fixed shaft 411 for sliding inside, and the fixed shaft 411 is fixedly arranged between the two rotating rods 406, and the two rotating rods 406 rotate with the rotating shaft 405 as the central axis, when the rectangular extrusion shell 413 is pressed downward, the fixed shaft 411 will move downward, that is, the fixed shaft 411 will move downward. The shaft 411 rotates with the rotating shaft 405 as the central axis. In the vertical direction, the position of the fixed shaft 411 moves downward. In the horizontal direction, the gap inside the rectangular extrusion shell 413 ensures the horizontal displacement of the fixed shaft 411, which enables the two rotating rods 406 to rotate with the rotating shaft 405 as the central axis. The final effect is: the downward movement of the pressing rod 412 causes the rectangular extrusion shell 413 to move downward, and the cooperation between the rectangular extrusion shell 413 and the fixed shaft 411 causes the two rotating rods 406 to rotate.

[0036] After the two rotating rods 406 rotate, they can drive the squeezing rod 407 to rotate. After the squeezing rod 407 rotates, it can drive the two U-shaped limit blocks 410 to be displaced in the horizontal plane, which will eventually cause the connecting plate 409 to move, and the rectangular positioning block 408 is fixed to the connecting plate 409, which causes the rectangular positioning block 408 to move toward the inside of the fork body 3, so that the fork body 3 and the fixing bar 101 are firmly limited, solving the problem of movement of the fork body 3 when it moves up and down, and at the same time increasing the bearing capacity of the contact surface between the fork body 3 and the fixing bar 101, effectively improving the use range of the fork body 3.

[0037] Embodiment 2

[0038] Please refer to Figure 3-Figure 7 This embodiment is basically the same as the first embodiment. This embodiment is made on the basis of the first embodiment and has the same beneficial effects as the first embodiment. The same parts can be referred to each other and will not be described in detail here.

[0039] Furthermore, the driving assembly 5 includes a driving shaft 501 rotatably arranged in the mounting frame 1, a plurality of driving cams 502 are fixedly arranged on the driving shaft 501, an operating handle 503 is fixedly arranged on the middle part of the driving shaft 501 outside the mounting frame 1, and the operating handle 503 is fixedly connected to the mounting frame 1 through a positioning pin; in the initial state, the operating handle 503 and the plurality of driving cams 502 are all arranged horizontally, and the reason for ensuring such an arrangement is that a spring locking piece is added when the driving shaft 501 is installed, and the operating handle 503 is rotated during use, so that the plurality of driving cams 502 are all arranged vertically, thereby causing the vertically arranged driving cams 502 to be smoothly squeezed onto the squeezed plate 401, so that the fixing assembly 4 works normally.

[0040] Furthermore, a cylindrical sliding cavity is provided inside the fork body 3 to facilitate the sliding of the positioning column 402; the cooperation between the positioning column 402 and the cylindrical recessed hole is to ensure that the rectangular positioning block 408 can be smoothly inserted into the middle of the fixing bar 101, and the two work simultaneously. This three-dimensional assembly can ensure the accuracy of the positioning of the fork body 3.

[0041] Furthermore, the number of the driving cams 502 is the same as the number of the rectangular through holes, and the number of the driving cams 502 depends on the number of the rectangular through holes, that is, no matter how many fork bodies 3 there are, the driving cams 502 can provide downward squeezing force to each fixing component 4 to ensure the normal use of the fixing component 4.

[0042] Furthermore, a protective shell 301 for protecting the entire fixing assembly 4 is provided in the middle of the fork body 3 . The use of the protective shell 301 can ensure the long-term use of the connecting rod part inside the fixing assembly 4 .

[0043] Furthermore, a waterproof shell is fixedly provided on the mounting frame 1 ; the provided waterproof shell can extend the service life of the driving cam 502 .

[0044] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the above embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fork with adjustable fork distance, comprising a mounting frame (1), a connecting seat (2) and two fork bodies (3) slidably arranged in the middle of the mounting frame (1), characterized in that: A fixing bar (101) is fixedly provided inside the installation frame (1), and a fixing assembly (4) fixedly connected to the fixing bar (101) is provided on the fork body (3); The fixing assembly (4) comprises a squeezed plate (401) arranged above the fork body (3) and a positioning column (402) slidably arranged inside the fork body (3); a cylindrical recessed hole for cooperating with the positioning column (402) is provided at the upper end of the fixing bar (101); the squeezed plate (401) and the positioning column (402) are fixedly arranged via a connecting rod (403); a return spring (404) is sleeved in the middle of the connecting rod (403) and located between the fork body (3) and the squeezed plate (401); and a driving assembly (5) for driving the squeezed plate (401) to move is provided inside the mounting frame (1).

2. A fork with adjustable fork distance according to claim 1, characterized in that: The fixing assembly (4) further comprises a rotating shaft (405) rotatably arranged on the fork body (3) and a rectangular positioning block (408) slidably arranged inside the fork body (3); two rotating rods (406) are symmetrically rotatably arranged on the rotating shaft (405); a squeezing rod (407) is rotatably arranged at the lower ends of the two rotating rods (406); and a fixing shaft (411) is fixedly arranged between the two rotating rods (406); A plurality of rectangular through holes for use with a rectangular positioning block (408) are provided in the middle of the fixing strip (101); a connecting plate (409) is fixedly provided on the rectangular positioning block (408); two U-shaped limit blocks (410) are symmetrically fixedly provided on the upper end of the connecting plate (409); and two ends of the extrusion rod (407) are slidably arranged on the inner side of the U-shaped limit blocks (410); A lower pressing rod (412) is fixedly provided at the lower end of the squeezed plate (401); a rectangular squeeze shell (413) is fixedly provided at the lower end of the lower pressing rod (412) and located between the two rotating rods (406); the fixed shaft (411) is slidably arranged inside the rectangular squeeze shell (413); a return spring (404) is also sleeved at the middle part of the lower pressing rod (412) and located between the fork body (3) and the squeezed plate (401).

3. A fork with adjustable fork distance according to claim 2, characterized in that: The driving assembly (5) comprises a driving shaft (501) rotatably arranged in the mounting frame (1), a plurality of driving cams (502) being fixedly arranged on the driving shaft (501), an operating handle (503) being fixedly arranged in the middle of the driving shaft (501) outside the mounting frame (1), and the operating handle (503) being fixedly connected to the mounting frame (1) via a positioning pin.

4. A fork with adjustable fork distance according to claim 2, characterized in that: A cylindrical sliding cavity is provided inside the fork body (3) to facilitate the sliding of the positioning column (402).

5. The fork with adjustable fork distance according to claim 3, characterized in that: The number of the driving cams (502) is the same as the number of the rectangular through holes.

6. A fork with adjustable fork distance according to claim 2, characterized in that: A protective shell (301) for protecting the entire fixing assembly (4) is provided in the middle of the fork body (3).

7. The fork with adjustable fork distance according to claim 3, characterized in that: A waterproof shell is fixedly provided on the installation frame (1).

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