A compact structure fork mechanism
By incorporating an inner pitching, pressure stabilizing, and ejection mechanism into the forklift mechanism, combined with electric drive and sensors, the problems of large space and insufficient automation in existing loading mechanisms are solved, achieving compact, stable, and precise loading operations.
Patent Information
- Application Number
- CN202610659900.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-14
- Publication Date
- 2026-07-14
AI Technical Summary
The existing hydraulic scissor fork ejection mechanism of the loading mechanism occupies a large space, and the pitch function is integrated at the rear of the fork, making it difficult to adapt to complex loading conditions. The degree of automation and loading adaptability are insufficient.
Design a compact forklift mechanism, with a pitching mechanism, a pressure stabilizing mechanism, and an ejection mechanism located inside the support base. Automated control is achieved using electric drive and sensors. The vertical overlap design reduces the force required for pitching motion, and the ejection mechanism uses a lead screw drive for precise control.
It achieves a compact structure for the fork mechanism, adapts to various loading conditions, reduces equipment costs, improves the automation and safety of loading, and ensures the stability and accurate placement of goods.
Smart Images
Figure CN122380277A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of logistics equipment technology, and in particular to a compact forklift mechanism. Background Technology
[0002] Currently, most loading attachments in the industry use hydraulic scissor fork ejection mechanisms. These mechanisms, mounted on the back of the forks, occupy a large amount of space. Furthermore, the fork tilting mechanism is integrated at the rear of the forks, further increasing the space required there. This makes it difficult to adapt to the complex loading conditions required in the market. Automation and loading adaptability are weaknesses in the entire industry. Summary of the Invention
[0003] 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.
[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a compact fork mechanism.
[0005] To achieve the above objectives, the technical solution of the present invention is: a compact fork mechanism, including a base and a fork assembly. The base includes a fixed plate, a rotating base, and a support base. The rotating base is rotatably connected to the fixed plate. The top of the support base is hinged to the rotating base. The hinge point between the support base and the rotating base is located in the middle of the support base. A pitching mechanism for driving the support base to pitch is provided on the inner side of the side wall of the support base. The fork assembly is connected to the bottom of the support base. A pressure stabilizing mechanism for fixing goods is provided on the support base above the fork assembly. A push-out mechanism for pushing out goods is provided on the side of the support base.
[0006] By adopting the above technical solution, the pitching mechanism, pressure stabilizing mechanism, and ejection mechanism are all located inside the support base, making the entire fork mechanism compact and smaller in size, and better adaptable to different loading conditions on the market. The fixed plate is used to connect with the loading equipment, and the loading equipment drives the entire fork mechanism to rotate and move. The action flow of the fork mechanism includes: fork entry to pick up goods, lifting goods, the pitching mechanism driving the support base to tilt the forks up, the pressure stabilizing mechanism stabilizing the goods, fork rotation, overall movement, lowering the goods, the pitching mechanism driving the support base to tilt the forks down, pressure stabilizing release, ejection mechanism ejecting the goods, and equipment retraction. The whole system is automated by using electric drive in conjunction with sensors.
[0007] Preferably, the pitch mechanism includes a pitch support and a drive mechanism for providing power. The pitch support is triangular, with its top corner rotatably connected to the rotating base. One bottom corner of the pitch support is rotatably connected to the drive mechanism, which is connected to the support base. The other bottom corner of the pitch support is connected to the support base via a connecting mechanism. In this invention, the pitch hinge point between the support base and the rotating base is located in the middle of the support base, ensuring that the center of gravity of the entire forklift mechanism and the cargo coincides vertically at the pitch hinge point. This vertical coincidence design results in zero torque from the weight of the cargo and the pitch mechanism acting on the pitch hinge point. Only a small additional force is needed to achieve pitch by rotating around the hinge point. A low-power electric cylinder is sufficient to drive the pitch action, saving equipment costs. The pitch action is achieved by the drive mechanism pushing the pitch support to rotate around the hinge point with the rotating support, allowing the pitch mechanism to push the support base to perform the pitch action via the connecting mechanism. By designing an indirect drive method for the pitch support, it is possible to effectively prevent large impact forces from directly reacting on the electric cylinder, making the entire mechanism more stable and reliable.
[0008] Preferably, the driving mechanism includes an electric cylinder, which is rotatably connected to the support base, and the output rod of the electric cylinder is rotatably connected to the pitch support. This invention utilizes the extension and retraction of the output rod of the electric cylinder to drive the pitch support to rotate. The entire electric cylinder is rotatably connected to the support base, providing the conditions for driving the pitch support to rotate.
[0009] Preferably, the connecting mechanism includes a slide groove and a roller. The slide groove is formed on the support base, and the roller is slidably connected within the slide groove. The roller is rotatably connected to the pitch mechanism. When the output rod of the electric cylinder extends or retracts, it drives the pitch support to rotate around its hinge point with the rotating base, thereby causing the roller to perform circular motion. The sliding of the roller within the slide groove then drives the support base to perform a pitching motion.
[0010] Preferably, the ejection mechanism includes a push plate assembly and a linear guide rail. The push plate assembly is slidably connected to the support base via the linear guide rail. A push plate power mechanism for driving the push plate assembly to slide is provided on the top of the support base. This invention utilizes a driving mechanism to drive the push plate assembly to slide on the linear guide rail, thereby ejecting goods. The linear guide rail is located on the top of the support base, and the entire push plate assembly is suspended from the top of the support base and adheres to the side wall of the support base via the linear guide rail, achieving a compact structure.
[0011] Preferably, the pusher power mechanism includes a ball screw and an ejector motor. The ball screw is rotatably connected to the support base, and the ejector motor is fixedly connected to the support base. The output shaft of the ejector motor is driven by the ball screw, and the ball screw is driven by the pusher assembly. In this invention, the ejector motor drives the ball screw to rotate via a sprocket and chain drive. The ball screw is driven by a screw nut to the pusher assembly. The rotation of the ball screw drives the linear motion of the screw nut, which in turn drives the linear motion of the pusher assembly fixed to the screw nut. Compared with a hydraulic scissor-type ejector, the screw drive method enables uniform ejection and retraction of the pusher. Combined with the uniform retraction of the forks, precise control of the loading position can be achieved.
[0012] Preferably, the pressure stabilizing mechanism includes a guide rail frame, a frame boom, a pressure stabilizing component, and a pressure stabilizing motor. The guide rail frame is fixedly connected to the support base. The frame boom is slidably connected to the guide rail frame via a second linear guide rail. The pressure stabilizing component is connected to the frame boom. The pressure stabilizing motor is fixedly connected to the frame boom. A gear is mounted on the output shaft of the pressure stabilizing motor. A rack is fixedly connected to the guide rail frame, and the gear and rack mesh with each other. This invention utilizes the guide rail frame to suspend the entire pressure stabilizing mechanism between the push-out power mechanism and the fork assembly, thereby achieving a compact structure. The pressure stabilizing motor drives the gear to rotate and transmits power to the rack, causing the entire frame boom to slide along the second linear guide rail. This allows the pressure stabilizing component to press firmly against the cargo, thus maintaining the stability of the cargo and achieving a pressure stabilizing effect.
[0013] Preferably, the pressure stabilizing component and the frame boom are hinged together via a pin-type sensor. When the pressure stabilizing component of this invention stabilizes the cargo, the pin-type sensor feeds back the value to the system when the pressure reaches the set value, causing the motor to stop moving and ensuring the pressure value of the stabilizing component is maintained, thus preserving the stability of the cargo. By designing a pin-type pressure sensor at the hinge point between the pressure stabilizing component and the frame boom, the pressure value can be set to ensure the appropriate pressure between the stabilizing device and the cargo, preventing damage from excessive pressure and ensuring stability from insufficient pressure.
[0014] Preferably, the fork assembly is slidably connected to the support base, and the fork assembly is connected to the support base via a tension sensor. To accurately determine when the forks are close to the truck bed during loading, this invention installs a tension sensor between the fork assembly and the support base. When the forks are close to the truck bed, the tension sensor reading decreases, the system stops moving downwards, and then the push plate assembly is pushed out to complete the loading process.
[0015] Preferably, one end of the tension sensor is connected to the fork assembly, and the other end of the tension sensor is connected to the support base via a chain. In this invention, the upper part of the tension sensor is fixed to the base weld via a chain; the lower part is connected to the fork assembly via bolts; the two sides of the fork assembly slide with the base weld 1 via mounting grooves on both sides; all weight is transmitted to the base weld via the tension sensor and chain; changes in weight can be directly read from the tension sensor, thereby accurately determining whether the forks are about to reach the truck bed, avoiding loading of goods while they are suspended from the truck bed, improving loading safety and cargo stability.
[0016] In summary, the beneficial effects of this invention are: 1. The overall structure of the mechanism is more compact, the size is smaller, the automatic loading control is simpler, the device is more stable, and it is applicable to a wider range of working conditions.
[0017] 2. The push-out power mechanism adopts a screw drive method. Compared with the hydraulic scissor pusher, the screw drive method realizes the push plate's uniform push-out and retraction action. Combined with the uniform backward movement of the forks, it can achieve precise control of the loading position.
[0018] 3. The electric cylinder-driven pitch mechanism is designed so that the center of gravity of the cargo and attachments coincides with the vertical direction of the pitch axis center. Through a lever principle mechanism, the electric cylinder with a small thrust can achieve the pitching action of the forks under heavy loads. By designing an indirect drive method for the pitch support, it is possible to effectively prevent large impact forces from directly reacting on the electric cylinder, making the entire mechanism more stable and reliable.
[0019] 4. The pressure stabilizing component of the pressure stabilizing device and the boom are connected by a pin-shaft pressure sensor. By setting the pressure value, the pressure between the pressure stabilizing device and the cargo can be guaranteed, ensuring that the cargo is not damaged due to excessive pressure, and that the cargo is not unable to maintain stability due to insufficient pressure.
[0020] 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.
[0021] 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.
[0022] 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
[0023] 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.
[0024] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.
[0025] 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.
[0026] Figure 1 Schematic diagram of the overall structure Figure 1 ; Figure 2 for Figure 1 A magnified schematic diagram of the local structure at point A; Figure 3 This is a schematic diagram of the pitch support structure; Figure 4 Schematic diagram of the overall structure Figure 2 ; Figure 5 A schematic diagram of the launching mechanism; Figure 6 This is a schematic diagram of the voltage stabilizing mechanism; Figure 7 This is a cross-sectional schematic diagram of the voltage stabilizing mechanism; Figure 8 This is a structural diagram of the loading / unloading process.
[0027] Key reference numerals in the attached drawings: 1. Fork assembly; 2. Fixed plate; 3. Rotating base; 4. Support base; 5. Pitch bracket; 6. Electric cylinder; 7. Slide rail; 8. Roller; 9. Push plate assembly; 10. Linear guide rail one; 11. Ball screw; 12. Push-out motor; 13. Guide rail frame; 14. Frame boom; 15. Voltage stabilizing assembly; 16. Voltage stabilizing motor; 17. Gear; 18. Rack; 19. Pin sensor; 20. Tension sensor; 21. Linear guide rail two; 22. Pitch hinge point. Detailed Implementation
[0028] 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.
[0029] 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.
[0030] 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.
[0031] 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.
[0032] like Figure 1-8 As shown, a compact fork mechanism includes a base and a fork assembly 1. The base includes a fixed plate 2, a rotating base 3, and a support base 4. The rotating base 3 is rotatably connected to the fixed plate 2. The top of the support base 4 is hinged to the rotating base 3. The hinge point between the support base 4 and the rotating base 3 is located in the middle of the support base 4. A pitching mechanism for driving the support base 4 to pitch is provided on the inner side of the side wall. The fork assembly 1 is connected to the bottom of the support base 4. A pressure stabilizing mechanism for fixing goods is provided above the fork assembly 1 on the support base 4. An ejection mechanism for pushing out goods is provided on the side of the support base 4.
[0033] By adopting the above technical solution, the pitching mechanism, the pressure stabilizing mechanism, and the ejection mechanism are all located inside the support base 4, making the entire fork mechanism compact and smaller in size, and better able to adapt to different loading conditions on the market. The fixed plate 2 is used to connect with the loading equipment, and the loading equipment drives the entire fork mechanism to rotate and move. The action flow of the fork mechanism includes: fork entry to pick up goods, lifting goods, the pitching mechanism driving the support base 4 to tilt the forks up, the pressure stabilizing mechanism stabilizing the goods, fork rotation, overall movement, lowering the goods, the pitching mechanism driving the support base 4 to tilt the forks down, pressure stabilizing release, the ejection mechanism ejecting the goods, and equipment retraction. The whole system is automated by using electric drive in conjunction with sensors.
[0034] The pitch mechanism includes a pitch support 5 and a drive mechanism for providing power. The pitch support 5 is triangular, with its top corner rotatably connected to the rotating base 3. One of the bottom corners of the pitch support 5 is rotatably connected to the drive mechanism, which is connected to the support base 4. The other bottom corner of the pitch support 5 is connected to the support base 4 via a connecting mechanism. The pitch hinge point 22 between the support base 4 and the rotating base 3 is located in the middle of the support base 4, ensuring that the center of gravity of the entire fork mechanism and the cargo coincides in the vertical direction at the pitch hinge point 22. This vertical coincidence design results in zero torque exerted on the pitch hinge point 22 by the weight of the cargo and the pitch mechanism. Only a small additional force is needed to achieve rotation around the hinge point and thus pitch. A single low-power electric cylinder 6 is sufficient to drive the pitch action, saving equipment costs. The pitching motion is achieved by a drive mechanism that rotates the pitch support 5 around its hinge point with the rotating support, allowing the pitching mechanism to drive the support base 4 to perform the pitching motion via the connecting mechanism. By designing the pitch support 5 as an indirect drive mechanism, large impact forces can be effectively prevented from directly reacting to the electric cylinder 6, making the entire mechanism more stable and reliable.
[0035] The drive mechanism includes an electric cylinder 6, which is rotatably connected to the support base 4. The output rod of the electric cylinder 6 is rotatably connected to the pitch mechanism. By extending or retracting the output rod of the electric cylinder 6, the pitch support 5 is rotated. The entire electric cylinder 6 is rotatably connected to the support base 4, providing the conditions for rotating the pitch support 5.
[0036] The connecting mechanism includes a slide groove 7 and a roller 8. The slide groove 7 is formed on the support base 4, and the roller 8 is slidably connected in the slide groove 7. The roller 8 is rotatably connected to the pitch. When the output rod of the electric cylinder 6 extends or retracts, it drives the pitch support 5 to rotate around the hinge point with the rotating base 3, thereby driving the roller 8 to perform a circular motion. Thus, the sliding of the roller 8 in the slide groove 7 drives the support base 4 to perform a pitching motion.
[0037] The ejection mechanism includes a push plate assembly 9 and a linear guide rail 10. The push plate assembly 9 is slidably connected to the support base 4 via the linear guide rail 10. A push plate power mechanism for driving the push plate assembly 9 to slide is provided on the top of the support base 4. The drive mechanism drives the push plate assembly 9 to slide on the linear guide rail 10, thereby ejecting the goods. The linear guide rail 10 is located on the top of the support base 4. The entire push plate assembly 9 is suspended from the top of the support base 4 via the linear guide rail 10 and fits against the side wall of the support base 4, achieving a compact structure.
[0038] The pusher power mechanism includes a ball screw 11 and an ejector motor 12. The ball screw 11 is rotatably connected to the support base 4, and the ejector motor 12 is fixedly connected to the support base 4. The output shaft of the ejector motor 12 is driven by the ball screw 11, and the ball screw 11 is driven by the pusher assembly 9. The ejector motor 12 drives the ball screw 11 to rotate via a sprocket and chain drive. The ball screw 11 is driven by the screw nut to the pusher assembly 9. The rotation of the ball screw 11 drives the linear movement of the screw nut, which in turn drives the linear movement of the pusher assembly 9, which is fixed to the screw nut. Compared with a hydraulic scissor pusher, the screw drive method enables the pusher to be pushed and retracted at a uniform speed. Combined with the uniform retraction of the forks, it can achieve precise control of the loading position.
[0039] The pressure stabilizing mechanism includes a guide rail frame 13, a frame boom 14, a pressure stabilizing component 15, and a pressure stabilizing motor 16. The guide rail frame 13 is fixedly connected to the support base 4. The frame boom 14 is slidably connected to the guide rail frame 13 via a second linear guide rail 21. The pressure stabilizing component 15 is connected to the frame boom 14. The pressure stabilizing motor 16 is fixedly connected to the frame boom 14. A gear 17 is installed on the output shaft of the pressure stabilizing motor 16, and a rack 18 is fixedly connected to the guide rail frame 13. The gear 17 and the rack 18 mesh with each other. The guide rail frame 13 allows the entire pressure stabilizing mechanism to be suspended between the push-out power mechanism and the fork assembly 1, thus achieving a compact structure. The pressure stabilizing motor 16 drives the gear 17 to rotate and transmit power to the rack 18, causing the entire frame boom 14 to slide along the second linear guide rail 21. This allows the pressure stabilizing component 15 to press firmly against the goods, thereby maintaining the stability of the goods and achieving a pressure stabilizing effect.
[0040] The pressure stabilizing component 15 and the frame boom 14 are hinged together by a pin sensor 19. When the pressure stabilizing component 15 stabilizes the cargo, the pin sensor 19 feeds back the value to the system when the pressure reaches the set pressure value, and the motor stops moving, ensuring the pressure value of the pressure stabilizing component 15 and maintaining the stability of the cargo. By designing a pin pressure sensor at the hinge point between the pressure stabilizing component 15 and the frame boom 14, the pressure value can be set to ensure the appropriate pressure between the pressure stabilizing device and the cargo, preventing the cargo from being damaged by excessive pressure and ensuring the cargo's stability is maintained by insufficient pressure.
[0041] The fork assembly 1 is slidably connected to the support base 4, and the fork assembly 1 is connected to the support base 4 via a tension sensor 20. In order to accurately determine whether the forks are close to the truck bed during loading, a tension sensor 20 is installed between the fork assembly 1 and the support base 4. When the forks are close to the truck bed, the value of the tension sensor 20 decreases, the system stops moving downward, and then the push plate assembly 9 is pushed out to complete the loading.
[0042] One end of the tension sensor 20 is connected to the fork assembly 1, and the other end of the tension sensor 20 is connected to the support base 4 via a chain. The upper part of the tension sensor 20 is fixed to the base weld via a chain; the lower part is connected to the fork assembly 1 via bolts; the two sides of the fork assembly 1 are slidably fitted with the sliding grooves 7 on both sides of the base weld 1; all weight is transmitted to the base weld via the tension sensor 20 and the chain; changes in weight can be directly read from the tension sensor 20, thereby accurately determining whether the forks are about to reach the truck bed, avoiding loading of goods in a suspended state from the truck bed, improving loading safety and the stability of the goods.
[0043] It should be noted that many specific details have been set forth in the above description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.
Claims
1. A compact fork mechanism, comprising a base and a fork assembly (1), characterized in that: The base includes a fixed plate (2), a rotating base (3) and a support base (4). The rotating base (3) is rotatably connected to the fixed plate (2). The top of the support base (4) is hinged to the rotating base (3). The hinge point between the support base (4) and the rotating base (3) is located in the middle of the support base (4). A pitching mechanism for driving the support base (4) to pitch is provided on the inner side of the side wall of the support base (4). The fork assembly (1) is connected to the bottom of the support base (4). A pressure stabilizing mechanism for fixing goods is provided above the fork assembly (1) on the support base (4). A push-out mechanism for pushing out goods is provided on the side of the support base (4).
2. The compact fork mechanism according to claim 1, characterized in that: The pitch mechanism includes a pitch support (5) and a drive mechanism for providing power. The pitch support (5) is triangular. The top corner of the pitch support (5) is rotatably connected to the rotating base (3). One of the bottom corners of the pitch support (5) is rotatably connected to the drive mechanism. The drive mechanism is connected to the support base (4). The other bottom corner of the pitch support (5) is connected to the support base (4) via a connecting mechanism.
3. The compact forklift mechanism according to claim 2, characterized in that: The drive mechanism includes an electric cylinder (6), which is rotatably connected to the support base (4), and the output rod of the electric cylinder (6) is rotatably connected to the pitch.
4. The compact fork mechanism according to claim 2, characterized in that: The connecting mechanism includes a slide (7) and a roller (8). The slide (7) is formed on the support base (4). The roller (8) is slidably connected in the slide (7). The roller (8) is rotatably connected to the pitch.
5. The compact fork mechanism according to claim 1, characterized in that: The ejection mechanism includes a push plate assembly (9) and a linear guide rail (10). The push plate assembly (9) is slidably connected to the support base (4) via the linear guide rail (10). The top of the support base (4) is provided with a push plate power mechanism for driving the push plate assembly (9) to slide.
6. The compact fork mechanism according to claim 5, characterized in that: The push plate power mechanism includes a ball screw (11) and an ejector motor (12). The ball screw (11) is rotatably connected to the support base (4). The ejector motor (12) is fixedly connected to the support base (4). The output shaft of the ejector motor (12) is drivenly connected to the ball screw (11). The ball screw (11) is drivenly connected to the push plate assembly (9).
7. The compact fork mechanism according to claim 1, characterized in that: The voltage stabilizing mechanism includes a guide rail (13), a frame boom (14), a voltage stabilizing component (15), and a voltage stabilizing motor (16). The guide rail (13) is fixedly connected to the support base (4). The frame boom (14) is slidably connected to the guide rail (13) via a linear guide rail (21). The voltage stabilizing component (15) is connected to the frame boom (14). The voltage stabilizing motor (16) is fixedly connected to the frame boom (14). A gear (17) is provided on the output shaft of the voltage stabilizing motor (16). A rack (18) is fixedly connected to the guide rail (13). The gear (17) and the rack (18) mesh with each other.
8. The compact forklift mechanism according to claim 7, characterized in that: The voltage stabilizing component (15) and the frame boom (14) are hinged to each other via a pin sensor (19).
9. The compact fork mechanism according to claim 1, characterized in that: The fork assembly (1) is slidably connected to the support base (4), and the fork assembly (1) is connected to the support base (4) through a tension sensor (20).
10. The compact fork mechanism according to claim 9, characterized in that: One end of the tension sensor (20) is connected to the fork assembly (1), and the other end of the tension sensor (20) is connected to the support base (4) via a chain.