CN218665285U

CN218665285U - Adjustable fork mechanism

Info

Publication number: CN218665285U
Application number: CN202223002117.2U
Authority: CN
Inventors: 李凯
Original assignee: Tianjin Haimei Technology Co ltd
Current assignee: Tianjin Haimei Technology Co ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-03-21
Anticipated expiration: 2032-11-04

Abstract

The utility model relates to the technical field of fork trucks, in particular to an adjustable fork mechanism, which comprises a mounting frame, a first fork, a second fork and an adjusting shaft, wherein the mounting frame comprises a frame body and an optical axis arranged on the frame body along the horizontal direction; the first fork is arranged on the optical axis in a sliding mode, and a first lead screw nut is arranged at one end, facing the mounting frame, of the first fork; the second fork is arranged on the optical axis in a sliding mode, and a second lead screw nut is arranged at one end, facing the mounting frame, of the second fork; the adjustable fork mechanism comprises an installation frame, a first lead screw nut, a second lead screw nut, an adjusting shaft, a first external thread structure and a second external thread structure, wherein the first lead screw nut and the second lead screw nut are arranged on the installation frame in a rotatable mode, the adjusting shaft penetrates through the first lead screw nut and the second lead screw nut, the outer peripheral side of the adjusting shaft is provided with the first external thread structure in threaded fit with the first lead screw nut and the second external thread structure in threaded fit with the second lead screw nut, the adjustable fork mechanism can achieve continuous adjustment of the distance between the two forks, operation is simple and convenient, symmetry of the two forks can be guaranteed, and use reliability is improved.

Description

Adjustable fork mechanism

Technical Field

The utility model relates to a fork truck technical field especially relates to an adjustable fork mechanism.

Background

The forks are the most commonly used pick-up devices for forklifts. The truck is equipped with two forks, for example with the letter L. The horizontal section of the fork is a working part for forking goods, and the vertical section is a supporting part. The fork is divided into an articulated type and a fixed type, wherein the articulated type fork can be lifted when the forklift retreats and meets an obstacle, and then the effect of avoiding is achieved. In order to carry objects with different sizes conveniently, the distance between the two forks is required to be adjusted frequently, the existing forks are generally fixed on a mounting frame through positioning pins and cannot be continuously adjusted in distance, the other forks are fixed on the mounting frame through fastening bolts, operation is complex when the distance between the forks is adjusted, symmetry of the two forks is difficult to guarantee, and use reliability is low.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an adjustable fork mechanism can realize the continuous adjustment of two fork intervals, and easy and simple to handle, can guarantee the symmetry of two forks, improves and uses the reliability.

(II) technical scheme

To achieve the above object, an embodiment of the present application provides an adjustable fork mechanism, including: the mounting frame comprises a frame body and an optical axis arranged on the frame body along the horizontal direction; the first fork is arranged on the optical axis in a sliding mode, and a first lead screw nut is arranged at one end, facing the mounting frame, of the first fork; the second pallet fork is arranged on the optical axis in a sliding mode, and a second lead screw nut is arranged at one end, facing the mounting frame, of the second pallet fork; the adjusting shaft is rotatably arranged on the mounting frame and penetrates through the first lead screw nut and the second lead screw nut, and the outer peripheral side of the adjusting shaft is provided with a first external thread structure in threaded fit with the first lead screw nut and a second external thread structure in threaded fit with the second lead screw nut.

In a possible implementation manner, the optical axis includes a first optical axis disposed at the top of the front side of the mounting frame and a second optical axis disposed at the bottom of the rear side of the mounting frame; the first fork is provided with a first front through hole and a first rear through hole, the second fork is provided with a second front through hole and a second rear through hole, the first optical axis penetrates through the first front through hole and the second front through hole, and the second optical axis penetrates through the first rear through hole and the second rear through hole.

In a possible implementation manner, the rear end of the first fork is arranged on a first upper supporting block and a first lower supporting block, the first upper supporting block is abutted with the top of the rear end of the frame body, and the first lower supporting block is abutted with the bottom of the front end of the frame body; the rear end of the second fork is provided with a second upper supporting block and a second lower supporting block, the second upper supporting block is abutted to the top of the rear end of the frame body, and the second lower supporting block is abutted to the bottom of the front end of the frame body.

In a possible implementation manner, the first front through hole, the first rear through hole, the second front through hole, and the second rear through hole are all strip-shaped holes in the front-rear direction.

In a possible implementation manner, the lengths of the first front through hole and the second front through hole are greater than the diameter of the first optical axis and less than 1.5 times of the diameter of the first optical axis; the lengths of the first rear through hole and the second rear through hole are larger than the diameter of the second optical axis and smaller than 1.5 times of the diameter of the first optical axis.

In one possible implementation, the first lead screw nut is fixed to the rear end of the first pallet fork through a bolt; and the second lead screw nut is fixed at the rear end of the second pallet fork through a bolt.

In a possible implementation manner, the top of the frame body is provided with scale marks along the horizontal direction.

(III) advantageous effects

Compared with the prior art, the utility model provides an adjustable fork mechanism possesses following beneficial effect: this adjustable fork mechanism, through rotating the regulating spindle, the first external screw thread structure and the first screw nut cooperation of regulating spindle, the cooperation of second external screw thread structure and second screw nut to the realization is to the synchro-control of first fork and second fork, makes the synchronous equidistance of first fork and second fork slip in opposite directions or back of the body mutually, can realize the continuous adjustment of two fork intervals, and easy and simple to handle, can guarantee the symmetry of two forks, improves the reliability of use.

Drawings

FIG. 1 is a schematic perspective view of an adjustable fork mechanism provided in an embodiment of the present application;

FIG. 2 shows a schematic perspective view of FIG. 1 at another angle;

fig. 3 illustrates a perspective view of a first fork and a second fork provided in an embodiment of the present application;

in the drawings, the reference numbers:

1. a mounting frame; 11. a frame body; 111. scale lines; 12. an optical axis; 121. a first optical axis; 122. a second optical axis;

2. a first fork; 21. a first lead screw nut; 22. a first front through hole; 23. a first rear through hole; 24. a first upper support block; 25. a first lower support block;

3. a second fork; 31. a second lead screw nut; 32. a second front via; 33. a second rear via; 34. a second upper support block; 35. a second lower support block;

4. an adjustment shaft; 41. a first external thread formation; 42. a second external thread formation.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, an embodiment of the present application provides an adjustable fork mechanism, including: mounting bracket 1, first fork 2, second fork 3 and regulating shaft 4, wherein:

the mount 1 includes a frame 11 and an optical axis 12 provided on the frame 11 in the horizontal direction.

The first fork 2 is slidably disposed on the optical axis 12, and one end of the first fork 2 facing the mounting frame 1 is provided with a first lead screw nut 21.

The second fork 3 is slidably disposed on the optical axis 12, and a second lead screw nut 31 is disposed at one end of the second fork 3 facing the mounting frame 1.

The adjusting shaft 4 is rotatably disposed on the mounting bracket 1, the adjusting shaft 4 penetrates through the first lead screw nut 21 and the second lead screw nut 31, and a first external thread structure 41 in threaded fit with the first lead screw nut 21 and a second external thread structure 42 in threaded fit with the second lead screw nut 31 are disposed on the outer peripheral side of the adjusting shaft 4.

In this application, through rotating regulating spindle 4, the first external screw thread structure 41 and the cooperation of first lead screw nut 21 of regulating spindle 4, the cooperation of second external screw thread structure 42 and second lead screw nut 31, thereby realize the synchro-control to first fork 2 and second fork 3, make first fork 2 and the synchronous slip in opposite directions or back of the body mutually of interval of second fork 3, can realize the continuous regulation of two fork intervals, and easy and simple to handle, can guarantee the symmetry of two forks, improve and use the reliability.

Specifically, the thread pitch of the first external thread structure 41 is equal to the thread pitch of the second external thread structure 42, so that the first fork 2 and the second fork 3 can be adjusted at equal intervals, the turning direction of the first external thread structure 41 is opposite to the turning direction of the second external thread structure 42, and the first fork 2 and the second fork 3 can be opposite to each other to slide.

In some embodiments, the optical axis 12 includes a first optical axis 121 disposed at the top of the front side of the mounting frame 1 and a second optical axis 122 disposed at the bottom of the rear side of the mounting frame 1; the first fork 2 is provided with a first front through hole 22 and a first rear through hole 23, the second fork 3 is provided with a second front through hole 32 and a second rear through hole 33, the first optical axis 121 penetrates through the first front through hole 22 and the second front through hole 32, and the second optical axis 122 penetrates through the first rear through hole 23 and the second rear through hole 33.

In this application, the first fork 2 slides along the first optical axis 121 and the second optical axis 122 in the transverse direction, and the second fork 3 slides along the first optical axis 121 and the second optical axis 122, so as to ensure the stability of the first fork 2 and the second fork 3 during adjustment.

In some embodiments, the rear ends of the first forks 2 are disposed on a first upper support block 24 and a first lower support block 25, the first upper support block 24 abuts the top of the rear end of the frame 11, and the first lower support block 25 abuts the bottom of the front end of the frame; the rear end of the second fork 3 is provided with a second upper supporting block 34 and a second lower supporting block 35, the second upper supporting block 34 is abutted against the top of the rear end of the frame body 11, and the second lower supporting block 35 is abutted against the bottom of the front end of the frame body 11.

In this application, through the rear end top butt of first last supporting shoe 24 with framework 11, the first bottom shoe 25 and the front end bottom butt of framework 11, thereby guarantee the stability of first fork 2, guarantee the ability that first fork 2 bore the goods, through the rear end top butt of second last supporting shoe 34 with framework 11, the second bottom shoe 35 and the front end bottom butt of framework 11, thereby guarantee the stability of second fork 3, guarantee the ability that second fork 3 bore the goods.

Further, the first front through hole 22, the first rear through hole 23, the second front through hole 32, and the second rear through hole 33 are all strip-shaped holes in the front-rear direction.

In the present application, by setting the first front through hole 22, the first rear through hole 23, the second front through hole 32 and the second rear through hole 33 as strip-shaped holes, the first fork 2 and the second fork 3 can rotate around the adjusting shaft 4 within a small range, specifically, when the distance between the first fork 2 and the second fork 3 is adjusted, because no heavy object is loaded on the first fork 2 and the second fork 3, the pressure between the first upper supporting block 24 and the second upper supporting block 34 and the frame 11 is small, the pressure between the second upper supporting block 34 and the second lower supporting block 35 and the frame 11 is small, thereby ensuring that the first fork 2 and the second fork 3 can be adjusted laterally, when the first fork 2 and the second fork 3 bear the heavy object, the pressure between the first upper supporting block 24 and the second upper supporting block 34 and the frame 11 becomes large, the pressure between the second upper supporting block 34 and the second lower supporting block 35 and the frame 11 becomes large, when the first fork 2 and the second fork 3 bear the heavy object, the pressure between the first upper supporting block 24 and the second supporting block 34 and the second fork 3 can avoid the optical axis 121 and the second fork 121 from being deformed directly.

Further, the lengths of the first front through hole 22 and the second front through hole 32 are greater than the diameter of the first optical axis 121 and less than 1.5 times the diameter of the first optical axis 121; the lengths of the first rear through-hole 23 and the second rear through-hole 33 are greater than the diameter of the second optical axis 122 and less than 1.5 times the diameter of the first optical axis 121.

In this application, the activity of first optical axis 121 in through-hole 22 before first and through-hole 32 before the second is less, and the activity of second optical axis 122 in through-hole 23 behind first and through-hole 33 behind the second is less, and it can to guarantee that first supporting shoe and second supporting shoe can play main supporting role.

In some embodiments, the first lead screw nut 21 is bolted to the rear end of the first fork 2; the second lead screw nut 31 is fixed to the rear end of the second fork 3 by a bolt.

In this application, can dismantle first lead screw nut 21 and second lead screw nut 31, the both ends of optical axis 12 also can be dismantled with framework 11 to can change first fork 2 and second fork 3.

In some embodiments, the top of the frame 11 is provided with graduation lines 111 along the horizontal direction.

In this application, the scale mark 111 on the frame 11 is used as a reference to conveniently determine the distance between the first fork 2 and the second fork 3.

This adjustable fork mechanism is when using, through rotating regulating spindle 4, the first external screw thread structure 41 and the cooperation of first lead screw nut 21 of regulating spindle 4, the cooperation of second external screw thread structure 42 and second lead screw nut 31, thereby realize the synchronous regulation to first fork 2 and second fork 3, make the synchronous equidistance of first fork 2 and second fork 3 slip in opposite directions or back of the body mutually, can realize the continuous control of two fork intervals, and easy and simple to handle, can guarantee the symmetry of two forks, improve and use the reliability.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

It should be readily understood that "over 8230" \8230on "," over 82308230; "over 8230;" and "over 8230; \8230; over" in the present disclosure should be interpreted in the broadest manner such that "over 8230;" over 8230 ";" not only means "directly over something", but also includes the meaning of "over something" with intervening features or layers therebetween, and "over 8230;" over 8230 ";" or "over 8230, and" over "not only includes the meaning of" over "or" over "but also may include the meaning of" over "or" over "with no intervening features or layers therebetween (i.e., directly over something).

Furthermore, spatially relative terms, such as "under," "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's illustrated relationship to another element or feature. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An adjustable fork mechanism, comprising:

the mounting frame (1), the mounting frame (1) comprises a frame body (11) and an optical axis (12) arranged on the frame body (11) along the horizontal direction;

the first pallet fork (2) is arranged on the optical axis (12) in a sliding mode, and one end, facing the mounting frame (1), of the first pallet fork (2) is provided with a first lead screw nut (21);

the second pallet fork (3) is arranged on the optical axis (12) in a sliding mode, and a second lead screw nut (31) is arranged at one end, facing the mounting rack (1), of the second pallet fork (3); and

adjusting spindle (4), adjusting spindle (4) rotatable set up in on mounting bracket (1), adjusting spindle (4) run through first screw nut (21) with second screw nut (31), just the periphery side of adjusting spindle (4) be provided with first screw nut (21) screw-thread fit's first external screw thread structure (41) and with second screw nut (31) screw-thread fit's second external screw thread structure (42).

2. An adjustable fork mechanism as claimed in claim 1, wherein the optical axis (12) comprises a first optical axis (121) arranged at the top of the front side of the mounting bracket (1) and a second optical axis (122) arranged at the bottom of the rear side of the mounting bracket (1); be provided with first preceding through-hole (22) and first back through-hole (23) on first fork (2), through-hole (32) and second back through-hole (33) before being provided with the second on second fork (3), first optical axis (121) run through first preceding through-hole (22) with through-hole (32) before the second, second optical axis (122) run through first back through-hole (23) with through-hole (33) behind the second.

3. An adjustable fork mechanism as claimed in claim 2, wherein the rear end of the first fork (2) is provided with a first upper support block (24) and a first lower support block (25), the first upper support block (24) abutting the top of the rear end of the frame (11), the first lower support block (25) abutting the bottom of the front end of the frame; the rear end of the second fork (3) is provided with a second upper supporting block (34) and a second lower supporting block (35), the second upper supporting block (34) is abutted to the top of the rear end of the frame body (11), and the second lower supporting block (35) is abutted to the bottom of the front end of the frame body (11).

4. The adjustable fork mechanism of claim 3, wherein the first front through hole (22), the first rear through hole (23), the second front through hole (32) and the second rear through hole (33) are all strip-shaped holes in the front-rear direction.

5. An adjustable fork mechanism as claimed in claim 4, wherein the first and second front through holes (22, 32) have a length greater than the diameter of the first optical axis (121) and less than (1) · (5) times the diameter of the first optical axis (121); the length of the first rear through hole (23) and the second rear through hole (33) is greater than the diameter of the second optical axis (122) and less than (1) · (5) times the diameter of the first optical axis (121).

6. An adjustable fork mechanism as claimed in claim 1, wherein the first lead screw nut (21) is bolted to the rear end of the first fork (2); the second lead screw nut (31) is fixed to the rear end of the second pallet fork (3) through a bolt.

7. An adjustable fork mechanism as claimed in claim 1, wherein the top of the frame (11) is provided with graduations (111) in a horizontal direction.