A rotatable adjustable side-shift fork

By designing a rotatable and adjustable side-shift fork, and utilizing sliding connections and solenoid valve-driven left and right forks, combined with telescopic components and rollers, the problems of cumbersome fork insertion direction adjustment and wear in traditional forklifts are solved, enabling flexible loading and unloading of forks in narrow spaces and extending equipment life.

CN117800264BActive Publication Date: 2025-10-28LONGHE INTELLIGENT EQUIP MFG CO LTD
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Patent Information

Application Number
CN202311510215.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-13
Publication Date
2025-10-28
Estimated Expiration
2043-11-13

AI Technical Summary

Technical Problem

Traditional forklifts have cumbersome fork insertion direction adjustment, are prone to structural wear, are noisy, and are not smooth in loading and unloading in narrow spaces, affecting equipment lifespan and maintenance costs.

Method used

The design incorporates a rotatable, adjustable-pitch side-shift fork. By installing slidingly connected left and right forks on the fork carriage body, the fork spacing and angle can be adjusted using solenoid valves and telescopic components. Rollers reduce friction, and the hydraulic cylinder piping is simplified. An angled telescopic component is installed between the rotating bracket and the fork carriage body to control rotation.

Benefits of technology

It enables flexible adjustment of the fork insertion angle, reduces friction and noise, expands application scenarios, and improves loading and unloading efficiency, especially in narrow spaces, while reducing wear and maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of transportation equipment technology, and more particularly to a rotatable, adjustable-pitch side-shifting fork. The fork includes a fork carriage body with a slidingly connected fork assembly, a solenoid valve assembly mounted on the fork assembly, a rotating bracket rotatably connected to the fork carriage body, and a telescopic assembly positioned between the fork carriage body and the rotating bracket. By slidably connecting left and right forks on the fork carriage body, the spacing of the entire fork is adjustable. Rollers are also provided on both sides of the left and right forks to reduce friction and noise during movement. The left and right forks are driven by solenoid valves, and the overall hydraulic piping is clear and concise. An angled telescopic assembly is provided between the fork carriage body and the rotating bracket, allowing the fork carriage body to rotate left and right. By rotating the fork carriage body, the angle at which the forks insert into the cargo chassis can be adjusted. Especially in confined spaces, this allows for lateral adjustment of the placement direction of the load, expanding the application scenarios of the fork.
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Description

Technical Field

[0001] This invention relates to the field of transportation equipment technology, and in particular to a rotatable and adjustable side-shift fork. Background Technology

[0002] Forklifts are handling vehicles used for loading, unloading, stacking, and short-distance transport of goods, and are widely used in industrial production. Traditional forklifts typically have horizontally mounted forks. Driven by a hydraulic system, the two forks rise and fall synchronously along the mast, lifting or lowering goods. However, in actual transport, the forklift needs to be moved to the correct position, aligning the forks with the cargo chassis for proper handling. If the insertion direction is off, the goods may tip over, requiring the driver to readjust the insertion direction.

[0003] However, changing the fork insertion direction through the forklift body is too cumbersome. Moreover, most existing fork carriages are skeleton structures with a rough appearance and messy hydraulic cylinder lines. Not only is the appearance poor, but the drive structure is also prone to deformation and wear due to collisions with goods. When the forks move laterally, they wear heavily with the fork carriage body and generate a lot of noise. When loading and unloading goods in a confined space, the frame restricts the smooth loading and unloading process. All of these factors affect the lifespan of the equipment and maintenance costs. Summary of the Invention

[0004] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a rotatable and adjustable side-shifting fork. This invention features slidingly connected left and right forks on the fork carriage body, thereby making the spacing of the entire fork adjustable. Rollers are also provided on both sides of the left and right forks to reduce friction and noise during movement. The left and right forks are driven by solenoid valves, and the overall hydraulic cylinder pipeline is clear and simple. An angled telescopic component is provided between the fork carriage body and the rotating bracket, allowing the fork carriage body to rotate left and right. By rotating the fork carriage body, the angle at which the forks insert into the cargo chassis can be adjusted. Especially in narrow spaces, the lateral shifting direction of the loaded cargo can be adjusted, expanding the application scenarios of the fork.

[0006] This invention provides a rotatable adjustable-distance side-shifting fork, comprising a fork carriage body with a slidably connected fork assembly, a solenoid valve assembly disposed on the fork assembly, a rotating bracket rotatably connected to the fork carriage body, and a telescopic assembly disposed between the fork carriage body and the rotating bracket; guide protrusions extend from both the upper and lower sides of the fork carriage body, and a snap-fit ​​tooth is provided on the upper side of the fork assembly, the snap-fit ​​tooth being adapted to the guide protrusion on the upper side of the fork carriage body; a sliding groove is provided on the lower side of the fork carriage body, and a corresponding sliding block is provided on the fork assembly, allowing the fork assembly to slide along the sliding groove; the telescopic assembly is provided on both sides of the rotating bracket, the fixed end of the telescopic assembly being connected to the rotating bracket, and the movable end of the telescopic assembly being connected to the fork carriage body. The fork assembly, slidably connected to the fork carriage body, allows for adjustable fork spacing, adjusting the fork spacing according to the size of the load. A solenoid valve assembly drives the fork assembly to move laterally. A rotating bracket connects to the forklift body, allowing the fork carriage body, rotatably connected to the rotating bracket, to rotate freely. A telescopic assembly located between the fork carriage body and the rotating bracket controls the specific rotation angle of the fork carriage body. Engaging teeth and guide protrusions on the fork assembly are fitted to support the weight of the fork assembly. A sliding groove on the lower side assists fork movement and provides guidance. Self-lubricating copper sheets are installed inside the engaging teeth to effectively reduce friction and ensure proper sliding.

[0007] In some embodiments, the rotating bracket has a triangular cross-section, and the telescopic components are respectively disposed on both sides of the rotating bracket, with an included angle greater than 90 degrees between the two telescopic components. The triangular rotating bracket has a stronger load-bearing capacity, and the two telescopic components with the included angle extend outward and connect to the fork body, forming a triangular structure with the fork body. This balances the force and controls the fork body to swing left and right. Preferably, the included angle between the two telescopic components is 128 degrees.

[0008] In some embodiments, the upper and lower sides of the rotating bracket are provided with rotating engagement grooves, and a rotating shaft is provided in each rotating engagement groove. The upper and lower sides of the fork body are each provided with engagement holes. The rotating shaft passes through the rotating engagement groove and the engagement hole, and the engagement hole is rotatably connected to the rotating engagement groove via the rotating shaft. The engagement hole is engaged within the rotating engagement groove and fixed by the rotating shaft, allowing the fork body to rotate freely. Furthermore, the rotating engagement groove has upper and lower layers, improving its load-bearing capacity.

[0009] In some embodiments, a telescopic fixing hole is provided in the rotating engagement groove on the lower side of the rotating bracket, and a fixing bolt is provided in the telescopic fixing hole. The fixing end of the telescopic component is fixed by the fixing bolt. There are two telescopic fixing holes, which are located on both sides of the rotating shaft. The fixing end of the telescopic component has a hole, and the fixing end is fixed to the left and right sides of the rotating shaft in the rotating engagement groove by the fixing bolt, providing support for the telescopic component's extension and retraction. It should be understood that the telescopic fixing hole and the fixing bolt can also be provided in the rotating engagement groove on the upper side of the rotating bracket.

[0010] In some embodiments, limiting plates are provided on both sides of the rotating engagement groove on the upper side of the rotating bracket, and the engagement hole rotates between the two limiting plates. A reinforcing plate is vertically provided between the two rotating engagement grooves. The engagement hole rotates between the two limiting plates. Due to the restriction of the limiting plates, when rotating to the left or right to a certain extent, the side of the engagement hole will abut against the limiting plates, thus preventing further operation and achieving the function of limiting the rotation direction of the fork body. The reinforcing plate provided between the two rotating engagement grooves ensures the consistency of the operation of the upper and lower rotating engagement grooves during rotation. It should be understood that the limiting plate can also be provided in the rotating engagement groove on the lower side of the rotating bracket.

[0011] In some embodiments, a hook extends from the back side of the rotating bracket, and an adapter plate is provided below the hook. An adapter hole extends from the adapter plate. Both the adapter plate and the adapter hole are used for connection with the forklift body, while the hook serves as an auxiliary connection, balancing the force and reducing the need for bolts. After removing the bolts on the lower adapter hole, disassembly can be achieved by lifting the entire fork.

[0012] In some embodiments, the fork assembly includes a left fork and a right fork. The solenoid valve assembly includes a solenoid base and piston rods disposed on both sides of the solenoid base. The solenoid base is disposed on the fork carriage body, and the piston rods disposed on both sides of the solenoid base are respectively connected to the left fork and the right fork. The left fork and the right fork can move laterally. Both the left fork and the right fork can move, and under the control of the solenoid valve, the moving distance of the left and right forks can be precisely adjusted. Compared with the conventional method of having drive cylinders for both left and right forks, the solenoid valve assembly achieves the same distance adjustment function while simplifying the oil supply circuit.

[0013] In some embodiments, the fork carriage body is provided with an electromagnetic receiving groove, and the solenoid valve assembly is located within the electromagnetic receiving groove. A left protective plate extending outwards is provided on the left side of the left fork, and a right protective plate extending outwards is provided on the right side of the right fork. The solenoid valve assembly is partially mounted on the fork assembly and moves with the left and right forks. Therefore, the electromagnetic receiving groove is provided to accommodate the solenoid valve assembly, while also reducing the overall weight of the fork carriage body. The protective plates extending outwards on both sides of the fork assembly serve a limiting function, preventing the left and right forks from directly contacting the sides of the fork carriage body, thereby limiting the distance between the two forks and preventing them from separating excessively.

[0014] In some embodiments, rollers are provided on both sides of the left and right forks, and these rollers roll along the fork carriage body. The rollers assist in the movement of the forks, reducing friction and energy consumption.

[0015] In some embodiments, a connector is provided between the movable end of the telescopic component and the fork body. The connector has a connecting groove, and a fixing rod is provided within the connecting groove. The movable end of the telescopic component is positioned within the connecting groove via the fixing rod. The fixed end of the telescopic component is located within the connector for fixation. Preferably, under the action of the telescopic component, the fork body can swing left and right by 25 degrees.

[0016] By adopting the above technical solution, the beneficial effects of the present invention are:

[0017] This invention features slidingly connected left and right forks on the fork carriage body, making the spacing of the entire fork adjustable. Rollers are also provided on both sides of the left and right forks to reduce friction and noise during movement. The left and right forks are driven by solenoid valves, and the overall hydraulic cylinder pipeline is clear and simple. An angled telescopic component is provided between the fork carriage body and the rotating bracket, allowing the fork carriage body to rotate left and right. By rotating the fork carriage body, the angle at which the forks insert into the cargo chassis can be adjusted. Especially in narrow spaces, the orientation of the load can be adjusted laterally, expanding the application scenarios of the forks.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0019] Undoubtedly, such and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and figures.

[0020] To make the above and other objects, features and advantages of the present invention more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0022] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of the forks in some embodiments of the present invention;

[0025] Figure 2 This is a schematic diagram of the back side structure of the fork in some embodiments of the present invention;

[0026] Figure 3 This is a top view schematic diagram of the overall structure of the forks in some embodiments of the present invention;

[0027] Figure 4 This is a schematic diagram of fork rotation in some embodiments of the present invention;

[0028] Figure 5 This is a schematic diagram of the front structure of the rotating bracket in some embodiments of the present invention;

[0029] Figure 6 This is a schematic diagram of the rear structure of the rotating bracket in some embodiments of the present invention.

[0030] Explanation of key figure labels:

[0031] 1. Forklift body;

[0032] 11. Guide protrusion; 12. Sliding groove;

[0033] 2. Forklift assembly;

[0034] 21. Left fork; 22. Right fork; 23. Engaging teeth; 24. Left guard plate; 25. Right guard plate;

[0035] 3. Solenoid valve assembly;

[0036] 4. Rotating hanger;

[0037] 41. Rotating locking groove; 42. Telescopic fixing hole; 43. Limiting plate; 44. Hook; 45. Adapter plate; 46. Reinforcing plate;

[0038] 5. Telescopic components;

[0039] 6. Electromagnetic receiving tank;

[0040] 7. Rollers;

[0041] 8. Connectors. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0043] Furthermore, in the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies are not connected through a transitional structure, but rather formed as a whole through a connecting structure. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Reference Figure 1-2 , Figure 1 This is a schematic diagram of the overall structure of the forks in some embodiments of the present invention; Figure 2 This is a schematic diagram of the back side structure of the fork in some embodiments of the present invention.

[0047] According to some embodiments of the present invention, the present invention provides a rotatable adjustable side-shifting fork, including a fork carriage body 1 with a slidingly connected fork assembly 2, a solenoid valve assembly 3 disposed on the fork assembly 2, a rotating bracket 4 rotatably connected to the fork carriage body 1, and a telescopic assembly 5 disposed between the fork carriage body 1 and the rotating bracket 4; the fork carriage body 1 has guide protrusions 11 extending from both the upper and lower sides, the fork assembly 2 has a snap-fit ​​tooth 23 on the upper side, the snap-fit ​​tooth 23 is adapted to the guide protrusions 11 on the upper side of the fork carriage body 1, the fork carriage body 1 has a sliding groove 12 on the lower side, and a corresponding sliding block is disposed on the fork assembly 2, the fork assembly 2 sliding along the sliding groove 12; the rotating bracket 4 has the telescopic assembly 5 on both sides, the fixed end of the telescopic assembly 5 is connected to the rotating bracket 4, and the movable end of the telescopic assembly 5 is connected to the fork carriage body 1. The fork assembly 2, which is slidably connected to the fork carriage body 1, is used to adjust the spacing of the forks. The spacing of the forks can be adjusted according to the size of the load. The solenoid valve assembly 3 is used to drive the fork assembly 2 to move laterally. The rotating bracket 4 is connected to the forklift body, so the fork carriage body 1, which is rotatably connected to the rotating bracket 4, can rotate freely. The telescopic assembly 5, which is set between the fork carriage body 1 and the rotating bracket 4, is used to control the specific rotation angle of the fork carriage body 1. The snap-fit ​​teeth 23 on the fork assembly 2 are adapted to the guide protrusions 11 and are used to support the weight of the fork assembly 2. The sliding groove 12 on the lower side is used to assist the movement of the forks and play a guiding role. The snap-fit ​​teeth 23 are provided with self-lubricating copper sheets, which can effectively reduce friction and ensure normal sliding.

[0048] The fork assembly 2 includes a left fork 21 and a right fork 22. The solenoid valve assembly 3 includes a solenoid base and piston rods disposed on both sides of the solenoid base. The solenoid base is disposed on the fork carriage body 1. The piston rods disposed on both sides of the solenoid base are respectively connected to the left fork 21 and the right fork 22. The left fork 21 and the right fork 22 can move laterally. Both the left fork 21 and the right fork 22 can move. Under the control of the solenoid valve assembly 3, the moving distance of the left and right forks can be precisely adjusted. Compared with the conventional method of having drive cylinders for both left and right forks, the solenoid valve assembly achieves the same distance adjustment function while simplifying the oil supply circuit.

[0049] The fork carriage body 1 is provided with an electromagnetic receiving groove 6, and the solenoid valve assembly 3 is located in the electromagnetic receiving groove 6. The left fork 21 has a left protective plate 24 extending outward on its left side, and the right fork 22 has a right protective plate 25 extending outward on its right side. The solenoid valve assembly 3 is partially mounted on the fork assembly 2 and moves with the left and right forks 22 when they move. Therefore, the electromagnetic receiving groove 6 is provided to accommodate the solenoid valve assembly 3, while also reducing the overall weight of the fork carriage body 1. The protective plates extending outward on both sides of the fork assembly 2 serve as limiters, preventing the left and right forks 22 from directly contacting the sides of the fork carriage body 1, thereby limiting the distance between the two forks and preventing them from separating excessively.

[0050] Both the left fork 21 and the right fork 22 are equipped with rollers 7 on both sides, which roll along the fork carriage body 1. The rollers 7 assist the movement of the forks, reduce friction, and reduce energy consumption.

[0051] A connector 8 is provided between the movable end of the telescopic component 5 and the fork body 1. A connecting groove is provided within the connector 8, and a fixing rod is provided within the connecting groove. The movable end of the telescopic component 5 is positioned within the connecting groove via the fixing rod. The fixed end of the telescopic component 5 is located within the connector 8, serving a fixing function. Preferably, under the action of the telescopic component 5, the fork body 1 can swing left and right by 25 degrees.

[0052] Reference Figure 3-4 , Figure 3 This is a top view schematic diagram of the overall structure of the forks in some embodiments of the present invention; Figure 4 This is a schematic diagram of fork rotation in some embodiments of the present invention.

[0053] Optionally, according to some embodiments of the present invention, the rotating bracket 4 has a triangular cross-section, and the telescopic components 5 are respectively disposed on both sides of the rotating bracket 4, with an included angle between the two telescopic components 5, the included angle being greater than 90 degrees. The triangular rotating bracket 4 has a stronger load-bearing capacity, and the two telescopic components 5 with the included angle extend outward and connect to the fork body 1, forming a triangular structure with the fork body 1. While balancing the force, it can control the fork body 1 to swing to the left and right. Preferably, the included angle between the two telescopic components 5 is 128 degrees.

[0054] Reference Figure 5-6 , Figure 5 This is a schematic diagram of the front structure of the rotating bracket in some embodiments of the present invention; Figure 6 This is a schematic diagram of the rear structure of the rotating bracket in some embodiments of the present invention.

[0055] Optionally, according to some embodiments of the present invention, the rotating bracket 4 is provided with a rotating engagement groove 41 on both its upper and lower sides. A rotating shaft is disposed within the rotating engagement groove 41. Engaging holes extend from both the upper and lower sides of the fork body 1. The rotating shaft passes through the rotating engagement groove 41 and the engaging hole, and the engaging hole is rotatably connected to the rotating engagement groove 41 via the rotating shaft. The engaging hole is engaged within the rotating engagement groove 41 and fixed by the rotating shaft, allowing the fork body 1 to rotate freely. Simultaneously, the rotating engagement groove 41 has upper and lower layers, improving its load-bearing capacity.

[0056] The rotating bracket 4 has a telescopic fixing hole 42 in the rotating engagement groove 41 on its lower side. A fixing bolt is installed in the telescopic fixing hole 42, and the fixed end of the telescopic component 5 is fixed by the fixing bolt. There are two telescopic fixing holes 42, which are located on both sides of the rotating shaft. The fixed end of the telescopic component 5 has a hole, and the fixed end is fixed to the left and right sides of the rotating shaft of the rotating engagement groove 41 by the fixing bolt, providing support for the telescopic component 5 to extend and retract. It should be understood that the telescopic fixing hole 42 and the fixing bolt can also be provided in the rotating engagement groove 41 on the upper side of the rotating bracket 4.

[0057] Limiting plates 43 are provided on both sides of the rotating engagement groove 41 on the upper side of the rotating bracket 4. The engagement hole rotates between the two limiting plates 43, and a reinforcing plate 46 is vertically provided between the two rotating engagement grooves 41. The engagement hole rotates between the two limiting plates 43. Due to the restriction of the limiting plates 43, when rotating to the left or right to a certain extent, the side of the engagement hole will abut against the limiting plates 43, thus preventing further operation. This achieves the function of limiting the rotation direction of the fork body 1. The reinforcing plate 46 provided between the two rotating engagement grooves 41 ensures the consistency of the operation of the upper and lower rotating engagement grooves 41 during rotation. It should be understood that the limiting plate 43 can also be provided in the rotating engagement groove 41 on the lower side of the rotating bracket 4.

[0058] The rotating bracket 4 has a hook 44 extending from its back side, and an adapter plate 45 is located below the hook 44. An adapter hole extends from the adapter plate 45. Both the adapter plate 45 and the adapter hole are used for connection with the forklift body, while the hook 44 serves as an auxiliary connection, balancing the force and reducing the need for bolts. After removing the bolts from the lower adapter hole, disassembly can be achieved by lifting the entire fork.

[0059] The operating principle of this invention is as follows: The forklift body starts the side-shifting forks, and the rotation direction of the fork carriage body 1 is adjusted by the telescopic component 5. After the direction is the same as that of the goods, the side-shifting forks are inserted into the cargo chassis. The distance between the left and right forks is adjusted by the solenoid valve component 3. After the goods are lifted, the goods can be moved laterally, or the placement direction of the goods can be adjusted by the telescopic component 5. After the goods are unloaded, the side-shifting forks can be removed for maintenance periodically.

[0060] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0061] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0062] Furthermore, the described features or characteristics can be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented without the aforementioned specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A rotatable, adjustable-pitch side-shifting fork, characterized in that, include The fork carriage body is equipped with a slidingly connected fork assembly; A solenoid valve assembly is mounted on the fork assembly; A rotating bracket, which is rotatably connected to the main body of the fork; A telescopic assembly is disposed between the fork body and the rotating bracket; The fork carriage body has guide protrusions extending from both the upper and lower sides. The fork assembly has a snap-fit ​​tooth on the upper side, which is adapted to the guide protrusion on the upper side of the fork carriage body. The fork carriage body has a sliding groove on the lower side, and the fork assembly has a corresponding sliding block. The fork assembly slides along the sliding groove. The telescopic assembly is provided on both sides of the rotating bracket. The fixed end of the telescopic assembly is connected to the rotating bracket, and the movable end of the telescopic assembly is connected to the fork body. The rotating bracket has a triangular cross-section, and the telescopic components are respectively installed on both sides of the rotating bracket. An included angle is provided between the two telescopic components, and the included angle is greater than 90 degrees. The rotating bracket has rotating engagement grooves on both its upper and lower sides, with a rotating shaft inside each groove. The fork body also has engagement holes extending from its upper and lower sides. The rotating shaft passes through the rotating engagement grooves and the engagement holes, which are rotatably connected to the rotating engagement grooves via the rotating shaft. A telescopic fixing hole is provided in the rotating engagement groove on the lower side of the rotating bracket, with a fixing bolt inside. The fixing end of the telescopic component is secured by the fixing bolt. There are two telescopic fixing holes located on either side of the rotating shaft. Limiting plates are provided on both sides of the rotating engagement groove on the upper side of the rotating bracket, allowing the engagement hole to rotate between the two limiting plates. A reinforcing plate is vertically positioned between the two rotating engagement grooves.

2. The rotatable adjustable-pitch side-shifting fork according to claim 1, characterized in that, The rotating bracket has a hook extending from its back side, and an adapter plate with an adapter hole extending from its lower side.

3. The rotatable adjustable-pitch side-shifting fork according to claim 1, characterized in that, The fork assembly includes a left fork and a right fork. The solenoid valve assembly includes a solenoid base and piston rods disposed on both sides of the solenoid base. The solenoid base is disposed on the fork carriage body. The piston rods disposed on both sides of the solenoid base are respectively connected to the left fork and the right fork. The left fork and the right fork can move laterally.

4. The rotatable adjustable-pitch side-shifting fork according to claim 3, characterized in that, The fork carriage body is provided with an electromagnetic receiving groove, the electromagnetic valve assembly is located in the electromagnetic receiving groove, the left side of the left fork is provided with an outwardly extending left protective plate, and the right side of the right fork is provided with an outwardly extending right protective plate.

5. The rotatable adjustable-pitch side-shifting fork according to claim 3, characterized in that, Both the left and right forks are equipped with rollers on both sides, which roll along the fork carriage body.

6. The rotatable adjustable-pitch side-shifting fork according to claim 1, characterized in that, A connector is provided between the movable end of the telescopic component and the fork body. A connecting groove is provided in the connector, and a fixing rod is provided in the connecting groove. The movable end of the telescopic component is set in the connecting groove through the fixing rod.

Citation Information

Patent Citations

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