Spacing-adjustable pallet fork locking mechanism

Abstract

The utility model discloses a distance-adjustable pallet fork locking mechanism which comprises a supporting frame, pallet forks are arranged on the two sides of the supporting frame in a sliding mode, connecting blocks are fixedly installed at the tops and the bottoms of the pallet forks, and supporting plates are connected into the tops and the bottoms of the supporting frame in a sliding mode. The two supporting plates are slidably connected with a plurality of spring columns, the spring columns penetrate through the top and the bottom of the supporting frame, an adjusting mechanism is arranged in the supporting frame, and the spring columns are connected with the adjusting mechanism through the supporting plates; the spring columns are driven by the supporting plate to be ejected out of the supporting frame, the spring columns pressed by the pallet fork connecting block cannot be ejected out, so that the pallet fork is fixed among the spring columns, the pallet fork is locked through the spring columns, the adjusting precision of the pallet fork can be guaranteed as much as possible while the pallet fork is locked, and the adjusting precision of the pallet fork is guaranteed as much as possible. When the pallet fork needs to be moved, the supporting plate and the spring column are retracted.

Description

Technical Field

[0001] The utility model relates to the technical field of adjustable-distance cargo forks, in particular to a locking mechanism for adjustable-distance cargo forks. Background Art

[0002] A fork is a fork-shaped tool, usually used on forklifts, cranes, loaders and other equipment, and is used to carry, extract and stack goods. According to the connection method between the fork and the fork frame, the fork can be divided into two types: articulated forks and rigid forks. The tail of the articulated fork has a round hole, which is mounted on the horizontal axis of the fork frame. The fork can rotate upward around the horizontal axis, making it easy to adjust the spacing. It is usually used for forklifts with large lifting weights and often working on uneven ground. The tail of the rigid fork has a square hook groove, which is hooked on the crossbeam of the fork frame. It is usually used for forklifts with small lifting weights and often working on flat ground.

[0003] Traditional forklift forks are mostly fixed on the mounting plate, and the spacing cannot be flexibly adjusted when facing shelves of different sizes. When the items being transported are particularly large, if the distance between the forks is too narrow, the goods will be unstable on the forks and prone to tilting, causing problems for safe transportation. In order to solve the above problems, forks with adjustable spacing are more widely used at present, including manual adjustment and automatic adjustment. This adjustable spacing design enables the forklift to carry goods on pallets of different specifications without the operator having to manually adjust the fork spacing, thereby reducing the operator's labor intensity, improving work efficiency, and reducing damage to pallets and goods.

[0004] The existing adjustable spacing forks have a relatively weak connection between the forks and the fork support rods due to the adjustable spacing of the forks. After long-term use, the forks are prone to loosening or relative movement between the forks and the fork support rods, which causes a certain degree of decrease in the stability of the forks during movement. This phenomenon is very dangerous during the use of the forks. Utility Model Content

[0005] The object of the present invention is to provide a fork locking mechanism with adjustable spacing to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an adjustable spacing fork locking mechanism, including a support frame, forks are slidably arranged on both sides of the support frame, connecting blocks are fixedly installed on the top and bottom of the forks, support plates are slidably connected to the inside of the top and bottom of the support frame, multiple spring columns are slidably connected to the two support plates, multiple spring columns penetrate the top and bottom of the support frame, an adjustment mechanism is arranged inside the support frame, and the spring columns are connected to the adjustment mechanism through the support plates.

[0007] As a further description of the above technical solution: the adjustment mechanism includes two adjusting screws, the two adjusting screws are rotatably connected to the inside of one side of the support frame, the thread directions of the two adjusting screws are opposite, the two adjusting screws are threadedly connected to the two support plates respectively, a connecting rod is fixedly installed between the two adjusting screws, a motor is provided at the top of the top adjusting screw, the motor is fixedly installed inside the support frame, and the output end of the motor is fixedly connected to the top of the adjusting screw.

[0008] As a further description of the above technical solution: one end of the two support plates away from the adjusting screw is slidably connected to a limit rod, the limit rod is fixedly installed inside the support frame, the outer sleeve of the limit rod is provided with a tension spring, and the two ends of the tension spring are respectively fixedly connected to the two support plates.

[0009] As a further description of the above technical solution: sliding rods are fixedly installed on the top and bottom of the support frame, and the two sliding rods are slidably connected to the connecting blocks on the top and bottom of the two forks respectively.

[0010] As a further description of the above technical solution: damping rings are provided at the connection points between the two sliding rods and the connecting block, and the damping rings are fixedly installed inside the connecting block.

[0011] As a further description of the above technical solution: the two forks are fixedly connected to support blocks on the side walls close to the connecting block, cylinders are fixedly installed on the inner walls on both sides of the support frame, and the output ends of the two cylinders are fixedly connected to the side walls of the two support blocks respectively.

[0012] The utility model provides an adjustable spacing fork locking mechanism. It has the following beneficial effects: after the fork moves, the fork needs to be locked to prevent the connection between the fork and the output end of the cylinder from being loosened after long-term use, resulting in a decrease in the stability of the fork; after the fork does not move, the two support plates are driven by the adjustment mechanism to move in opposite directions, and the support plates drive multiple spring columns to be ejected from the inside of the support frame, and the spring columns pressed by the fork connection block cannot be ejected, so that the fork is fixed between the multiple spring columns, and the fork is locked. By locking the fork through the multiple spring columns, the adjustment accuracy of the fork can be guaranteed as much as possible while the fork is locked, and when the fork needs to be moved, the support plates and the spring columns can be retracted.

[0013] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0014] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an adjustable spacing fork locking mechanism proposed by the utility model;

[0016] Figure 2 A schematic diagram of a three-dimensional structure of the utility model from another viewing angle;

[0017] Figure 3 This is a schematic diagram of the main structure of the utility model from the back side perspective;

[0018] Figure 4 It is a schematic diagram of the three-dimensional explosion structure of the utility model;

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the adjustment mechanism of the utility model.

[0020] Legend:

[0021] 1. Support frame; 2. Fork; 3. Connecting block; 4. Support plate; 5. Spring column; 6. Adjusting screw; 7. Connecting rod; 8. Motor; 9. Limit rod; 10. Tension spring; 11. Support block; 12. Cylinder; 13. Sliding rod; 14. Damping ring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-5, a locking mechanism for adjustable spacing forks, comprising a support frame 1, both sides of the support frame 1 are slidably provided with forks 2, the top and bottom of the forks 2 are fixedly installed with connecting blocks 3, the top and bottom of the support frame 1 are slidably connected with support plates 4, and the two support plates 4 are slidably connected with a plurality of spring columns 5, and the plurality of spring columns 5 pass through the top and bottom of the support frame 1, and an adjustment mechanism is arranged inside the support frame 1, and the spring columns 5 are connected to the adjustment mechanism through the support plates 4; after the forks 2 are moved, the forks 2 need to be locked to avoid long-term use. The connection between the fork 2 and the output end of the cylinder 12 is loose, resulting in a decrease in the stability of the fork 2. After the fork 2 stops moving, the two support plates 4 are driven by the adjustment mechanism to move in opposite directions, and the support plates 4 drive multiple spring columns 5 to be ejected from the inside of the support frame 1. The spring columns 5 pressed by the fork 2 connecting block 3 cannot be ejected, so that the fork 2 is fixed between the multiple spring columns 5, and the fork 2 is locked. By locking the fork 2 with multiple spring columns 5, the adjustment accuracy of the fork 2 can be guaranteed as much as possible while locking the fork 2. When the fork 2 needs to be moved, the support plates 4 and the spring columns 5 can be retracted.

[0024] As the preferred technical solution of this embodiment, the adjustment mechanism includes two adjusting screws 6, and the two adjusting screws 6 are both rotatably connected to the inside of one side of the support frame 1. The thread directions of the two adjusting screws 6 are opposite, and the two adjusting screws 6 are respectively threadedly connected to the two support plates 4. A connecting rod 7 is fixedly installed between the two adjusting screws 6, and a motor 8 is provided at the top of the adjusting screw 6 at the top. The motor 8 is fixedly installed inside the support frame 1, and the output end of the motor 8 is fixedly connected to the top of the adjusting screw 6; when it is necessary to adjust the movement of the two support plates 4, by turning on the motor 8, the two adjusting screws 6 are driven to rotate, so that the support plate 4 threadedly connected to the two adjusting screws 6 moves inside the support frame 1, driving the spring column 5 to rise and fall inside the support frame 1.

[0025] As a preferred technical solution of this embodiment, one end of the two support plates 4 away from the adjusting screw 6 is slidably connected to a limiting rod 9, and the limiting rod 9 is fixedly installed inside the support frame 1. The outer sleeve of the limiting rod 9 is provided with a tension spring 10, and the two ends of the tension spring 10 are respectively fixedly connected to the two support plates 4; when the two support plates 4 slide, the limiting rod 9 assists the two support plates 4 to slide, and the tension spring 10 applies a pulling force to the two support plates 4 to move, so that the pre-tightening force at the connection between the two support plates 4 and the two adjusting screws 6 is increased, thereby improving the stability of the two support plates 4 when they are stationary.

[0026] As a preferred technical solution of this embodiment, sliding rods 13 are fixedly installed on the top and bottom of the support frame 1, and the two sliding rods 13 are slidably connected to the connecting blocks 3 at the top and bottom of the two forks 2 respectively; the two sliding rods 13 are slidably connected to the two connecting blocks 3, which assists the movement of the forks 2 on the support frame 1 and can also share part of the gravity of the goods.

[0027] As a preferred technical solution of this embodiment, a damping ring 14 is provided at the connection between the two sliding rods 13 and the connecting block 3, and the damping ring 14 is fixedly installed inside the connecting block 3; by installing the damping ring 14 at the connection between the connecting block 3 and the sliding rod 13, the connecting block 3 is more stable when sliding on the sliding rod 13, thereby increasing the stability of the fork 2 during the movement.

[0028] As a preferred technical solution of this embodiment, the two forks 2 are fixedly connected to the side walls close to the connecting block 3 with support blocks 11, and cylinders 12 are fixedly installed on the inner walls on both sides of the support frame 1, and the output ends of the two cylinders 12 are respectively fixedly connected to the side walls of the two support blocks 11; the two cylinders 12 push the two support blocks 11 to move, thereby driving the two forks 2 to move, so as to achieve adjustable spacing between the forks 2.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fork locking mechanism with adjustable spacing, comprising a support frame (1), characterized in that: Forks (2) are slidably arranged on both sides of the support frame (1), and connecting blocks (3) are fixedly installed on the top and bottom of the forks (2). Support plates (4) are slidably connected inside the top and bottom of the support frame (1), and a plurality of spring columns (5) are slidably connected on the two support plates (4). The plurality of spring columns (5) penetrate the top and bottom of the support frame (1), and an adjustment mechanism is arranged inside the support frame (1), and the spring columns (5) are connected to the adjustment mechanism through the support plates (4).

2. The adjustable spacing fork locking mechanism according to claim 1, characterized in that: The adjustment mechanism comprises two adjustment screws (6), the two adjustment screws (6) are both rotatably connected to the inside of one side of the support frame (1), the thread directions of the two adjustment screws (6) are opposite, the two adjustment screws (6) are respectively threadedly connected to the two support plates (4), a connecting rod (7) is fixedly installed between the two adjustment screws (6), and a motor (8) is provided at the top of the top adjustment screw (6), the motor (8) is fixedly installed inside the support frame (1), and the output end of the motor (8) is fixedly connected to the top of the adjustment screw (6).

3. The adjustable spacing fork locking mechanism according to claim 2, characterized in that: One end of the two support plates (4) away from the adjusting screw (6) is slidably connected to a limit rod (9), and the limit rod (9) is fixedly installed inside the support frame (1). A tension spring (10) is sleeved on the outside of the limit rod (9), and the two ends of the tension spring (10) are respectively fixedly connected to the two support plates (4).

4. The adjustable spacing fork locking mechanism according to claim 2, characterized in that: Sliding rods (13) are fixedly mounted on the top and bottom of the support frame (1), and the two sliding rods (13) are slidably connected to the connecting blocks (3) at the top and bottom of the two forks (2) respectively.

5. The adjustable spacing fork locking mechanism according to claim 4, characterized in that: A damping ring (14) is provided at the connection point between the two sliding rods (13) and the connecting block (3), and the damping ring (14) is fixedly installed inside the connecting block (3).

6. The adjustable spacing fork locking mechanism according to claim 4, characterized in that: The two forks (2) are fixedly connected to support blocks (11) on the side walls close to the connecting blocks (3), and cylinders (12) are fixedly installed on the inner walls on both sides of the support frame (1), and the output ends of the two cylinders (12) are respectively fixedly connected to the side walls of the two support blocks (11).

Images