Pallet fork module and carrying forklift

Abstract

The embodiment of the invention provides a pallet fork module and a carrying forklift. The pallet fork module comprises a mounting frame, an electric mechanism, a connecting rod mechanism and a pallet fork. The electric mechanism is in driving connection with the first end of the connecting rod mechanism and provides longitudinal power for the first end of the connecting rod mechanism. The second end of the link mechanism is positioned at the lower part of the mounting frame. The lower part of the pallet fork is hinged with the second end of the connecting rod mechanism; the connecting rod mechanism is used for converting longitudinal power borne by the first end of the connecting rod mechanism into transverse power of the second end, and the lower portion of the pallet fork is pushed to rotate upwards relative to the mounting frame through the second end so that the pallet fork can lean backwards. Or, the lower portion of the pallet fork is pulled through the second end to rotate downwards relative to the mounting frame, so that the pallet fork inclines forwards. The electric mechanism is adopted as a power source, compared with oil cylinder driving, the adjusting precision of the electric mechanism is high, the rotation angle of the pallet fork can be more accurate, and high-precision adjustment of the inclination angle of the pallet fork is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of warehousing and logistics, and in particular to a fork module and a transport forklift. Background Art

[0002] Forklifts usually use fork modules to pick up and carry goods. The forks of the fork modules can be rotated up or down to a certain angle to pick up and place goods.

[0003] In related technologies, the fork module uses a hydraulic cylinder to drive a cam assembly, which in turn moves the forks forward and backward. Using a hydraulic cylinder results in low adjustment accuracy, making it impossible to achieve high-precision adjustment of the fork tilt angle. Using a cam assembly also results in a short adjustment lever arm, requiring a greater hydraulic cylinder thrust to tilt the forks, increasing the hydraulic cylinder's energy consumption and power. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a fork module and a transport forklift to achieve high-precision adjustment of the fork tilt angle. The specific technical solution is as follows:

[0005] The embodiment of the present application provides a fork module, comprising: a mounting frame, an electric mechanism, a connecting rod mechanism and a fork; the electric mechanism and the connecting rod mechanism are installed on the inner side of the mounting frame along a first direction, and the fork is installed on the outer side of the mounting frame along the first direction; the first direction is the direction in which the fork extends; the electric mechanism is drivingly connected to the first end of the connecting rod mechanism to provide longitudinal power to the first end of the connecting rod mechanism; the second end of the connecting rod mechanism is located at the lower part of the mounting frame; the upper part of the fork is hinged to the mounting frame, and the lower part is hinged to the second end of the connecting rod mechanism; the connecting rod mechanism is used to convert the longitudinal power received by its first end into the lateral power of the second end, and push the lower part of the fork to rotate upward relative to the mounting frame through the second end to make the fork tilt backward; or, pull the lower part of the fork to rotate downward relative to the mounting frame through the second end to make the fork tilt forward.

[0006] In some embodiments of the present application, the connecting rod mechanism includes: a longitudinal sliding assembly, a first connecting rod, a transverse sliding assembly and a second connecting rod; the first end of the first connecting rod is hinged to the longitudinal sliding assembly, and is connected to the inner side of the mounting frame in a second direction through the longitudinal sliding assembly; the second end of the first connecting rod is hinged to the transverse sliding assembly, and is connected to the inner side of the mounting frame in a second direction through the transverse sliding assembly; the second direction is perpendicular to the first direction; the first end of the second connecting rod is hinged to the transverse sliding assembly; the second end of the second connecting rod is hinged to the lower part of the fork; the electric mechanism is connected to the longitudinal sliding assembly to drive the first end of the first connecting rod to move longitudinally through the longitudinal sliding assembly, so that the second end of the first connecting rod moves transversely based on the transverse sliding assembly; the second connecting rod pushes or pulls the lower part of the fork under the drive of the transverse sliding assembly.

[0007] In some embodiments of the present application, the electric mechanism is arranged at the top of the mounting frame; the transverse sliding assembly is arranged at the bottom of the mounting frame; the longitudinal sliding assembly is spaced apart from the transverse sliding assembly in the first direction and is located between the electric mechanism and the transverse sliding assembly.

[0008] In some embodiments of the present application, the electric mechanism includes: an electric telescopic rod; the longitudinal sliding assembly includes: a first slide rail and a first slider; the first slide rail is longitudinally fixed to the inner side of the mounting frame along the second direction; the first slider is slidably connected to the first slide rail and connected to the electric telescopic rod; the first end of the first connecting rod is hinged to the first slider through a first connecting plate; the transverse sliding assembly includes: a second slide rail and a second slider; the second slide rail is transversely fixed to the inner side of the mounting frame along the second direction; the second slider is slidably connected to the second slide rail; the second end of the first connecting rod and the first end of the second connecting rod are hinged to the second slider through a second connecting plate.

[0009] In some embodiments of the present application, the mounting frame includes: two mounting plates arranged relatively spaced apart; the number of the electric mechanism and the connecting rod mechanism are both two groups, and the two groups of the electric mechanism and the connecting rod mechanism are respectively mounted on the inner sides of the two mounting plates along the second direction; the upper part of the fork has two first hinges, which are respectively hinged to the two mounting plates; the lower part of the fork has two second hinges, which are respectively hinged to the second ends of the two groups of the connecting rod mechanisms; under the separate driving of the two groups of the electric mechanisms, the second ends of the two groups of the connecting rod mechanisms can simultaneously push or pull the lower part of the fork, so that the second hinge points of the fork rotate around the first hinge points.

[0010] In some embodiments of the present application, the mounting frame further includes: a connecting frame; the connecting frame is fixed between the two mounting plates, and there is a mounting gap between the two sides and the two mounting plates; the upper part of the fork has two hinged plates spaced apart along the second direction on the side facing the mounting frame; each of the hinged plates is located in the mounting gap, the first hinge point is located on the hinge plate, and is hinged to the connecting frame and the mounting plate through a hinge shaft; the lower part of the fork has two hinged seats spaced apart along the second direction on the side facing the mounting frame; the hinged seat serves as a second hinge point and is hinged to the second end of the connecting rod mechanism.

[0011] In some embodiments of the present application, the fork module further includes: a zero position detection component and a limit detection component; the zero position detection component includes: a zero position detection switch and a zero position trigger plate; the limit detection component includes: a limit protection switch and a limit trigger plate; the zero position trigger plate and the limit trigger plate are respectively connected to the two hinged plates and can rotate synchronously with the fork; the zero position detection switch and the limit protection switch are both fixed inside the connecting frame, and their positions correspond to the zero position trigger plate and the limit trigger plate respectively; the zero position detection switch is used to stop the fork from rotating downward to the zero position state based on the zero position trigger plate being triggered; the limit protection switch is used to stop the fork from rotating upward to the limit state based on the limit trigger plate being triggered.

[0012] In some embodiments of the present application, the connecting frame includes: a connecting base plate, two connecting vertical plates and a connecting horizontal plate; the connecting base plate is horizontally arranged, and both ends are fixedly connected to the two mounting plates; the two connecting vertical plates are spaced apart along the second direction on the connecting base plate, and the mounting interval is formed between the connecting vertical plate and the mounting plate; the connecting horizontal plate is horizontally arranged, located between the two connecting vertical plates, and fixedly connected to the two connecting vertical plates; the zero position detection switch is fixed on the side of the connecting horizontal plate close to one connecting vertical plate; the limit protection switch is fixed on the side of the connecting horizontal plate close to the other connecting vertical plate.

[0013] In some embodiments of the present application, a zero position trigger plate is fixedly connected to a mounting step of one hinged plate toward the top of the fork via a first trigger connecting plate; the first trigger connecting plate extends horizontally from the hinged plate; the zero position trigger plate is perpendicularly connected to an extension of the first trigger connecting plate, so that the zero position trigger plate blocks and triggers the zero position detection switch when the fork is in the zero position, and does not block and trigger the zero position detection switch when the fork is not in the zero position; the limit trigger plate is fixedly connected to the mounting step of the other hinged plate toward the top of the fork via a second trigger connecting plate; the second trigger connecting plate extends horizontally from the hinged plate; the limit trigger plate is perpendicularly connected to an extension of the second trigger connecting plate, and the limit trigger plate is provided with an avoidance groove, so that the limit trigger plate avoids and does not trigger the limit protection switch when the fork is not in the limit position, and blocks and triggers the limit protection switch when the fork is in the limit position.

[0014] An embodiment of the present application also provides a transport forklift, comprising the fork module of any of the above embodiments, and a transport vehicle; the transport vehicle comprises: a vehicle body, and a lifting frame and a lifting mechanism installed on the vehicle body; rollers are provided on the mounting frame of the fork module, which are rollingly connected to the lifting frame; the mounting frame of the fork module is also drivingly connected to the lifting mechanism; under the drive of the lifting mechanism, the fork module can move up and down along the lifting frame, and move on the working plane driven by the vehicle body, so as to transport goods at different positions.

[0015] Beneficial effects of the embodiments of the present application:

[0016] The fork module and the transport forklift provided in the embodiment of the present application use an electric mechanism as a power source to drive the rotation of the fork. Compared with the prior art using an oil cylinder drive, the electric mechanism has a higher adjustment accuracy, which can make the rotation angle of the fork more accurate, and achieve high-precision adjustment of the fork tilt angle. In addition, the oil cylinder drive used in the related art will cause hydraulic shock during start-up and shutdown, affecting the working stability of the fork module. The embodiment of the present application uses an electric mechanism, which makes the adjustment of the fork tilt angle smoother, thereby improving the working stability of the fork module. The embodiment of the present application uses a connecting rod mechanism as a transmission component. Compared with the prior art using a cam component, the connecting rod mechanism has a longer adjustment arm, which is more labor-saving and does not require a large power from the power mechanism to drive the fork to rotate, which can reduce the energy consumption and power of the power mechanism.

[0017] Of course, it is not necessary to achieve all the advantages described above at the same time when implementing any product or method of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other embodiments can also be obtained based on these drawings.

[0019] Figure 1 A three-dimensional diagram of a fork module according to an embodiment of the present application;

[0020] Figure 2 A three-dimensional view of the fork module from another angle according to an embodiment of the present application;

[0021] Figure 3 for Figure 1 The exploded diagram of the fork module shown;

[0022] Figure 4 for Figure 1 A partial schematic diagram of the fork module shown;

[0023] Figure 5 for Figure 4 The fork module is shown as a plan view when the fork is in the zero position;

[0024] Figure 6 for Figure 4 The fork module is shown as a plan view when the fork is rotated upward to the limit state;

[0025] Figure 7 for Figure 6 The schematic diagram of the fork module shown;

[0026] Figure 8 for Figure 1 A perspective view of the forks in the fork module shown;

[0027] Figure 9 for Figure 2 A perspective view of the forks in the fork module shown;

[0028] Figure 10 for Figure 1 A three-dimensional view of the fork module at a first angle when the fork is removed;

[0029] Figure 11 for Figure 1 A perspective view of the fork module from a second angle when the fork is removed;

[0030] Figure 12 for Figure 1 A perspective view of the fork module from a third angle when the fork is removed;

[0031] Figure 13 for Figure 12The structural diagram of the limit detection component when the fork is in the limit state;

[0032] Figure 14 for Figure 1 A perspective view of the fork module from a fourth angle when the fork is removed;

[0033] Figure 15 for Figure 14 The structural diagram of the zero position detection component when the fork is in the limit state;

[0034] Figure 16 for Figure 12 The front view of the fork module shown;

[0035] Figure 17 for Figure 12 Shows the rear view of the fork module;

[0036] Figure 18 for Figure 13 The structural diagram of the limit detection component when the fork is in the zero position state;

[0037] Figure 19 for Figure 15 The structural diagram of the zero position detection component when the fork is in the zero position state is shown;

[0038] Figure 20 This is a three-dimensional diagram of a transport forklift according to an embodiment of the present application when the forks are in a zero position;

[0039] Figure 21 This is a three-dimensional view of the transport forklift according to an embodiment of the present application when the forks are rotated upward to the limit state.

[0040] Reference numerals:

[0041] Fork module 10; transport vehicle 20; vehicle body 21; lifting frame 22; column 22a; lifting mechanism 23; transmission wheel 23a; conveyor belt 23b;

[0042] Mounting frame 100; mounting plate 110; connecting frame 120; connecting bottom plate 121; hanging hole 1211; connecting vertical plate 122; connecting horizontal plate 123; connecting top plate 124; baffle 125; mounting spacer 130; roller 140;

[0043] Electric mechanism 200; electric telescopic rod 210; cylinder 220; motor 230;

[0044] Linkage mechanism 300; longitudinal sliding assembly 310; first slide rail 311; first slider 312; first connecting plate 313; first connecting rod 320; transverse sliding assembly 330; second slide rail 331; second slider 332; second connecting plate 333; second connecting rod 340;

[0045] Fork 400; first hinge point 400a; second hinge point 400b; fork arm 410; back plate 420; hinge plate 430; mounting step 431; hinge shaft 440; hinge seat 450;

[0046] Zero position detection assembly 500; zero position detection switch 510; zero position trigger plate 520; first trigger connection plate 530;

[0047] Limit detection assembly 600 ; limit protection switch 610 ; limit trigger plate 620 ; avoidance groove 621 ; second trigger connection plate 630 . DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field based on this application are within the scope of protection of this application.

[0049] As mentioned in the background art, a transport forklift usually utilizes a fork module to pick up and place and carry goods. The fork of the fork module can be rotated up or down to a certain angle to pick up and place goods.

[0050] In related technologies, the fork module uses a hydraulic cylinder to drive a cam assembly, which in turn moves the forks forward and backward. Using a hydraulic cylinder results in low adjustment accuracy, making it impossible to achieve high-precision adjustment of the fork tilt angle. Using a cam assembly also results in a short adjustment lever arm, requiring a greater hydraulic cylinder thrust to tilt the forks, increasing the hydraulic cylinder's energy consumption and power.

[0051] In order to achieve high-precision adjustment of the fork tilt angle, the embodiment of the present application provides a fork module and a transport forklift. The structure of the fork module is first described in detail below.

[0052] See also Figures 1 to 4 , Figure 1 A three-dimensional diagram of a fork module according to an embodiment of the present application; Figure 2 A three-dimensional view of the fork module from another angle according to an embodiment of the present application; Figure 3 for Figure 1 The exploded diagram of the fork module shown; Figure 4 for Figure 1 The partial schematic diagram of the fork module is shown in FIG. Figures 1 to 4 As shown, the fork module 10 includes a mounting frame 100 , an electric mechanism 200 , a link mechanism 300 and a fork 400 .

[0053] The electric mechanism 200 and the link mechanism 300 are mounted on the inner side of the mounting frame 100 along the first direction x, and the fork 400 is mounted on the outer side of the mounting frame 100 along the first direction x. The first direction x is the direction in which the fork 400 extends.

[0054] The electric mechanism 200 is drivingly connected to the first end of the connecting rod mechanism 300, providing longitudinal power to the first end of the connecting rod mechanism 300. The second end of the connecting rod mechanism 300 is located below the mounting frame 100. The upper portion of the fork 400 is hinged to the mounting frame 100, and the lower portion is hinged to the second end of the connecting rod mechanism 300.

[0055] The connecting rod mechanism 300 is used to convert the longitudinal force applied to its first end into the lateral force applied to the second end, thereby pushing the lower portion of the fork 400 to rotate upward relative to the mounting frame 100 through the second end to tilt the fork 400 backward; or, pulling the lower portion of the fork 400 to rotate downward relative to the mounting frame 100 through the second end to tilt the fork 400 forward.

[0056] The fork module 10 provided in the embodiment of the present application adopts an electric mechanism 200 as a power source to drive the fork 400 to rotate. Compared with the prior art using an oil cylinder drive, the electric mechanism 200 has a higher adjustment accuracy, which can make the rotation angle of the fork 400 more accurate, and achieve high-precision adjustment of the fork tilt angle. In addition, the oil cylinder drive used in the related art will cause hydraulic shock during start-up and shutdown, affecting the working stability of the fork module 10. The embodiment of the present application adopts an electric mechanism, which makes the adjustment of the fork tilt angle smoother, thereby improving the working stability of the fork module 10. The embodiment of the present application adopts a connecting rod mechanism 300 as a transmission component. Compared with the prior art using a cam component, the connecting rod mechanism 300 has a longer adjustment arm, which is more labor-saving. It does not require the power mechanism 200 to provide a large power to drive the fork 400 to rotate, which can reduce the energy consumption and power of the power mechanism 200.

[0057] In some embodiments of the present application, Figure 4 As shown, the linkage mechanism 300 includes a longitudinal sliding assembly 310 , a first link 320 , a transverse sliding assembly 330 and a second link 340 .

[0058] The first end of the first connecting rod 320 is hingedly connected to the longitudinal sliding assembly 310 and is slidably connected to the inner side of the mounting frame 100 along the second direction y through the longitudinal sliding assembly 310. The second end of the first connecting rod 320 is hingedly connected to the transverse sliding assembly 330 and is slidably connected to the inner side of the mounting frame 100 along the second direction y through the transverse sliding assembly 330. The second direction y is perpendicular to the first direction x.

[0059] A first end of the second connecting rod 340 is hinged to the transverse sliding assembly 330 ; a second end of the second connecting rod 340 is hinged to the lower portion of the fork 400 .

[0060] The electric mechanism 200 is connected to the longitudinal sliding assembly 310 to drive the first end of the first connecting rod 320 to move longitudinally through the longitudinal sliding assembly 310 and to enable the second end of the first connecting rod 320 to move laterally based on the transverse sliding assembly 330 .

[0061] Driven by the transverse sliding assembly 330 , the second connecting rod 340 pushes or pulls the lower portion of the fork 400 .

[0062] The cam assembly used in the prior art relies on the different distances between the cam's outer contour and the cam's center of rotation to push or pull the fork, resulting in a complex transmission. Furthermore, the cam design is complex and difficult to manufacture, and the resulting cam cannot guarantee high adjustment accuracy.

[0063] The embodiment of the present application realizes the conversion of the longitudinal force of the electric mechanism 200 into a lateral force by providing a longitudinal sliding component 310 with a lateral limit, a lateral sliding component 330 with a longitudinal limit, and a first connecting rod 320 hinged on the two components. A second connecting rod 340 is provided to be hinged between the lateral sliding component 330 and the lower part of the fork 400 to convert the lateral movement of the lateral sliding component 330 into the swinging of the fork 400. The transmission is relatively simple, and the structural design is simplified, which facilitates processing and manufacturing, thereby ensuring that the processed connecting rod mechanism 300 has high adjustment accuracy.

[0064] There are two specific arrangements of the electric mechanism 200, the longitudinal sliding assembly 310, and the transverse sliding assembly 330. The first arrangement will be described below.

[0065] like Figure 4 As shown, the electric mechanism 200 is mounted on the top of the mounting frame 100. The transverse sliding assembly 330 is disposed at the bottom of the mounting frame 100. The longitudinal sliding assembly 310 is spaced apart from the transverse sliding assembly 330 in the first direction x, and is located between the electric mechanism 200 and the transverse sliding assembly 330. This arrangement allows the electric mechanism 200 and the linkage mechanism 300 to be compactly arranged on the mounting frame 100, improving the utilization of the mounting space on the mounting frame 100 and reducing the impact on the load capacity of the fork module 10.

[0066] The longitudinal sliding assembly 310 is spaced apart from the transverse sliding assembly 330 in the first direction x, which can prevent the direction of the force applied by the electric mechanism 200 to the longitudinal sliding assembly 310 from coinciding with the length direction of the first connecting rod 320, thereby ensuring that the first connecting rod 320 can transmit normally after being subjected to force.

[0067] Specifically, if Figure 4As shown, the electric mechanism 200 is located above the entire linkage mechanism 300. The relative positional relationship between the longitudinal sliding assembly 310 and the transverse sliding assembly 330 in the first direction x must satisfy the following requirement: in the first direction x, the first end of the first connecting rod 320 is always located on the side of the second end away from the fork 400. This application does not limit the height relationship between the longitudinal sliding assembly 310 and the transverse sliding assembly 330.

[0068] The longitudinal sliding assembly 310 can be as follows Figure 4 As shown, the longitudinal sliding assembly 310 is higher than the transverse sliding assembly 330. In this case, when the electric mechanism 200 applies downward force to the longitudinal sliding assembly 310, the transverse sliding assembly 330 moves in a direction toward the fork 400. The longitudinal sliding assembly 310 can also be set lower than the transverse sliding assembly 330. In this case, when the electric mechanism 200 applies downward force to the longitudinal sliding assembly 310, the transverse sliding assembly 330 moves in a direction away from the fork 400. Figure 4 The arrangement adopted in the illustrated embodiment can reduce the distance between the electric mechanism 200 and the longitudinal sliding assembly 310 , making the fork module 10 more compact.

[0069] The second arrangement of the electric mechanism 200, the longitudinal sliding assembly 310 and the transverse sliding assembly 330 is different from the first arrangement in that the electric mechanism 200 is located below the longitudinal sliding assembly 310. The rest of the arrangement is the same as the first arrangement and will not be described in detail here. In actual application, the arrangement can be flexibly arranged according to the structural shape of the mounting frame 100. Figure 4 The arrangement shown is taken as an example for explanation.

[0070] See also Figures 5 to 7 , Figure 5 for Figure 4 The fork module is shown as a plan view when the fork is in the zero position; Figure 6 for Figure 4 The fork module is shown as a plan view when the fork is rotated upward to the limit state; Figure 7 for Figure 6 The schematic diagram of the fork module is shown in Figure 2. Figures 5 to 7 As shown, the servo linear motion is converted into the swinging motion of the fork 400 through the connecting rod mechanism 300, which can achieve high-precision adjustment of the swing direction. During adjustment, depending on the direction of the linear motion, the end swing can achieve two directions of movement: upward or downward. The specific adjustment process is as follows:

[0071] The electric mechanism 200 drives the longitudinal sliding assembly 310 to move the first end of the first connecting rod 320 downward. The second end of the first connecting rod 320 drives the transverse sliding assembly 330 to move laterally toward the fork 400. The second connecting rod 340 pushes the fork 400 to rotate upward, so that the fork 400 tilts backward, which can prevent the cargo carried on the fork 400 from falling.

[0072] The electric mechanism 200 drives the longitudinal sliding assembly 310 to move the first end of the first connecting rod 320 upward. The second end of the first connecting rod 320 drives the transverse sliding assembly 330 to move laterally in a direction away from the fork 400. The second connecting rod 340 pulls the fork 400 downward to tilt the fork 400 forward, thereby returning the fork 400 to the zero position state, so that the fork 400 can pick up and put down the goods.

[0073] The number of electric mechanisms 200 and connecting rod mechanisms 300 can be one or more groups. When using one group, the connecting rod mechanism 300 is hinged to the lower part of the fork 400 only through a second connecting rod 340. When using multiple groups, the number of hinge points between the multiple connecting rod mechanisms 300 and the fork 400 is multiple, which can improve the stability of the connection between the connecting rod mechanism 300 and the fork 400, thereby improving the stability of the fork 400 when rotating, and preventing the cargo from offsetting and shaking on the fork 400. In addition, driving multiple groups of electric mechanisms 200 can improve the load capacity of the fork 400. Below, taking two groups as an example, the arrangement of the two groups of electric mechanisms 200 and connecting rod mechanisms 300 on the mounting frame 100 is explained.

[0074] In some embodiments of this application, see Figures 8 to 11 , Figure 8 for Figure 1 A perspective view of the forks in the fork module shown; Figure 9 for Figure 2 A perspective view of the forks in the fork module shown; Figure 10 for Figure 1 A three-dimensional view of the fork module at a first angle when the fork is removed; Figure 11 for Figure 1 The fork module is shown as a three-dimensional image from a second angle when the fork is removed. Figure 10 and Figure 11 As shown, the mounting frame 100 includes two mounting plates 110 that are spaced apart from each other. The inner side of the mounting frame 100 along the second direction y is the side surface of the two mounting plates 110 that are opposite to each other.

[0075] There are two groups of the electric mechanism 200 and the connecting rod mechanism 300 . The two groups of the electric mechanism 200 and the connecting rod mechanism 300 are respectively mounted on the inner sides of the two mounting plates 110 along the second direction y.

[0076] like Figure 8 and Figure 9 As shown, the upper portion of the fork 400 has two first hinge points 400a, which are respectively hinged to the two mounting plates 110; the lower portion of the fork 400 has two second hinge points 400b, which are respectively hinged to the second ends of the two groups of the link mechanisms 300.

[0077] like Figure 10 and Figure 11 As shown, under the separate driving of the two electric mechanisms 200 , the second ends of the two connecting rod mechanisms 300 can simultaneously push or pull the lower portion of the fork 400 , causing the second hinge point 400 b of the fork 400 to rotate around the first hinge point 400 a .

[0078] Specifically, if Figure 8 and Figure 9 As shown, the fork 400 includes an L-shaped fork arm 410 and a back plate 420. The two fork arms 410 are spaced apart in the second direction y to fork pallets and other cargo. The vertical portion of each fork arm 410 is fixedly connected to the back plate 420. The first hinge point 400a and the second hinge point 400b are both provided on the side of the back plate 420 facing the mounting frame 100. The two first hinge points 400a are located at the top of the back plate 420 and spaced apart in the second direction y; the two second hinge points 400b are located at the bottom of the back plate 420 and spaced apart in the second direction y. The fork 400 is hinged to the mounting frame 100 via the two first hinge points 400a and is hinged to the two link mechanisms 300 via the two second hinge points 400b, thereby improving the stability of the connection and the stability of the fork 400 during rotation, thereby ensuring the accuracy of adjusting the tilt angle of the fork 400.

[0079] Each mounting plate 110 is provided with a set of electric mechanisms 200 and a set of connecting rod mechanisms 300, which can be Figure 10 and Figure 11 As shown, a symmetrical arrangement is adopted, and the thrusts on both sides are superimposed through servo synchronous control, thereby increasing the load capacity of the fork module 10.

[0080] The longitudinal drive form of the electric mechanism 200 can be: motor-driven rack and pinion transmission, motor-driven lead screw transmission, motor-driven telescopic rod extension, etc. Below, the electric mechanism 200 is described in detail using the motor-driven telescopic rod extension form.

[0081] In some embodiments of the present application, Figures 4 to 6 As shown, the electric mechanism 200 includes an electric telescopic rod 210 .

[0082] Specifically, the electric mechanism 200 is a servo cylinder, comprising an electric telescopic rod 210, a cylinder body 220, and a motor 230. The cylinder body 220 and motor 230 are arranged side by side and driven in a connected manner. The electric telescopic rod 210 is disposed within the cylinder body 220 and can be longitudinally extended and retracted relative to the cylinder body 220 under the drive of the motor 230.

[0083] By converting the linear motion of the servo electric cylinder into the swinging rotation of the fork 400, the fork 400 is driven to achieve an upward or downward movement. Figure 4 As shown, the top of the motor 230 and the cylinder body 220 are the drive connection ends, which are transmitted through a ball screw, so that the servo electric cylinder has high-precision characteristics. Compared with the inaccurate angle position and start-stop impact problems caused by traditional oil cylinder control of tilt, the embodiment of the present application adjusts the tilt angle of the fork 400 more smoothly, which is conducive to the tilt adjustment of the high-position loaded fork 400.

[0084] The longitudinal sliding assembly 310 includes a first slide rail 311 and a first slider 312. The first slide rail 311 is longitudinally fixed to the inner side of the mounting frame 100 along the second direction y; the first slider 312 is slidably connected to the first slide rail 311 and connected to the electric telescopic rod 210.

[0085] The transverse sliding assembly 330 includes: a second slide rail 331 and a second slider 332. The second slide rail 331 is fixed to the inner side of the mounting frame 100 along the second direction y in the transverse direction; the second slider 332 is slidably connected to the second slide rail 331. The first slider 312 can be directly connected to the electric telescopic rod 210, or it can be connected as shown in FIG. Figure 5 As shown, they are connected via a first connecting plate 313 .

[0086] The first end of the first connecting rod 320 is hinged to the first slider 312 via the first connecting plate 313. The second end of the first connecting rod 320 and the first end of the second connecting rod 340 are hinged to the second slider 332 via the second connecting plate 333. The position distribution of the two hinge points on the second connecting plate 333 is not limited in this application.

[0087] In the embodiment of the present application, the longitudinal sliding assembly 310 and the transverse sliding assembly 330 are both composed of slide rails and sliders, which have a simple and compact structure. This makes the size of the connecting rod mechanism 300 in the second direction y smaller, and makes the structure of the fork module 10 more compact. A large space is left between the two mounting plates 110 to install the connecting frame 120, thereby improving the structural stability of the mounting frame 100.

[0088] like Figure 1 and Figure 4 As shown, the electric mechanism 200 and the connecting rod mechanism 300 are both arranged on the inner side of the mounting plate 110, so that the outer side of the mounting plate 110 is simple and flat, so as to be installed on the lifting frame 22 of the transport vehicle 20. Please refer to the subsequent description for details.

[0089] The embodiment of the present application does not limit the number of each slide rail and slider, which can be one or more. Figures 4 to 6 The following is an example for explanation.

[0090] The number of the first slide rail 311 is 1 and is fixed to the side of the mounting plate 110 away from the fork 400. Since the longitudinal sliding assembly 310 is connected to the electric telescopic rod 210 and hinged to the first connecting rod 320, Figures 4 to 6 In the illustrated embodiment, two first sliders 312 are arranged longitudinally and fixedly connected via a first connecting plate 313. This increases the area of ​​the connection portion of the longitudinal sliding assembly 310, and creates a certain gap between the hinge position of the first connecting rod 320 on the first connecting plate 313 and the connection position of the electric telescopic rod 210 on the first connecting plate 313, thereby ensuring that the rotation of the first connecting rod 320 is not interfered with.

[0091] To shorten the dimension of the mounting plate 110 along the first direction x, Figures 4 to 6 In the embodiment shown, the transverse sliding assembly 330 is configured to be hinged at the top to the first connecting rod 320 and at the bottom to the second connecting rod 340, with the two hinge points arranged along the height direction. Accordingly, to prevent the rotation of the two connecting rods from interfering with each other, two second slide rails 331 spaced apart along the height direction are provided. Each second slide rail 331 is provided with a second slider 332, and the two second sliders 332 are fixedly connected by a second connecting plate 333. Figure 5 As shown, the two second slide rails 331 can be of different lengths. The upper second slide rail 331 is shorter to leave installation space for the first slide rail 311 ; the lower second slide rail 331 is longer and can extend to the edge of the mounting plate 110 .

[0092] In addition, in order to shorten the height dimension of the mounting plate 110, the electric mechanism 200 is not arranged directly above the first slide rail 311, but is offset in the first direction x and moved downward in the height direction. The electric mechanism 200 is connected to the longitudinal sliding assembly 310 by providing a connecting portion protruding in the first direction on the first connecting plate 313. The electric telescopic rod 210 can be rigidly connected to the first connecting plate 313, or it can be connected as shown in FIG. Figure 5 The hinge is shown to avoid the electric telescopic rod 210 from impacting the first connecting plate 313 during start and stop, making the telescopic control smoother.

[0093] By arranging the electric mechanism 200 and the slide rails in the above manner, the electric mechanism 200 and the connecting rod mechanism 300 are made more compact without affecting the transmission, thereby reducing the size of the mounting frame 100 and reducing the load of the lifting mechanism 23 of the transport vehicle 20.

[0094] In some embodiments of the present application, Figures 1 to 4 ,as well as Figure 8 As shown, the mounting frame 100 further includes a connecting frame 120 . The connecting frame 120 is fixed between the two mounting plates 110 , and has mounting gaps 130 between the two sides and the two mounting plates 110 .

[0095] The upper portion of the fork 400, facing the mounting frame 100, has two hinge plates 430 spaced apart along the second direction y. Each hinge plate 430 is located in the mounting space 130, and the first hinge point 400a is located on the hinge plate 430, which is hinged to the connecting frame 120 and the mounting plate 110 via a hinge shaft 440.

[0096] The lower portion of the fork 400 has two hinge seats 450 spaced apart along the second direction y on one side thereof facing the mounting frame 100. The hinge seats 450 serve as second hinge points 400b and are hinged to the second end of the link mechanism 300.

[0097] By applying the embodiment of the present application, the left and right mounting plates 110 are connected by the connecting frame 120 , which can improve the structural stability of the mounting frame 100 .

[0098] Specifically, if Figures 4 to 6 As shown, the motorized mechanism 200 is mounted on top of the mounting plate 110. The travel range of the longitudinal sliding assembly 310 of the linkage mechanism covers the side of the mounting plate 110 away from the forks 400, and the travel range of the transverse sliding assembly 330 covers the bottom of the mounting plate 110. The motorized mechanism 200, longitudinal sliding assembly 310, and transverse sliding assembly 330 form a clear area on the mounting plate 110 for mounting the connecting frame 120. The partitioned arrangement of these components on the mounting plate 110 improves space utilization on the mounting plate 110, making the fork module 10 more compact and enhancing its structural stability.

[0099] In some embodiments of this application, see Figures 12 to 17 , Figure 12 for Figure 1 A perspective view of the fork module from a third angle when the fork is removed; Figure 13 for Figure 12 The structural diagram of the limit detection component when the fork is in the limit state; Figure 14 for Figure 1 A perspective view of the fork module from a fourth angle when the fork is removed; Figure 15 for Figure 14 The structural diagram of the zero position detection component when the fork is in the limit state; Figure 16 for Figure 12 The front view of the fork module shown; Figure 17 for Figure 12 The figure shows the rear view of the fork module. Figure 2 、 Figures 12 to 17 As shown, the fork module 10 further includes: a zero position detection component 500 and a limit detection component 600 .

[0100] The zero position detection assembly 500 includes a zero position detection switch 510 and a zero position trigger plate 520 . The limit detection assembly 600 includes a limit protection switch 610 and a limit trigger plate 620 .

[0101] The zero-position trigger plate 520 and the limit trigger plate 620 are respectively connected to the two hinge plates 430 and can rotate synchronously with the fork 400 .

[0102] The zero position detection switch 510 and the limit protection switch 610 are both fixed inside the connecting frame 120, and their positions correspond to the zero position trigger plate 520 and the limit trigger plate 620, respectively. The zero position detection switch 510 is used to trigger the zero position trigger plate 520 when the forks 400 rotate downward to the zero position, thereby stopping the forks 400.

[0103] The limit protection switch 610 is used to be triggered based on the limit trigger plate 620 when the fork 400 rotates upward to the limit state, so as to stop the fork 400 from rotating.

[0104] Specifically, Figures 12 to 15 The diagram shows the structure of the fork module 10 when the fork 400 is rotated upward to its limit position. At this limit position, the zero position trigger plate 520 and the limit trigger plate 620 also rotate with the fork 400 to their limit positions. At this point, the zero position trigger plate 520 does not block the zero position detection switch 510, while the limit trigger plate 620 blocks the limit protection switch 610. Consequently, the zero position detection switch 510 is not triggered, and only the limit protection switch 610 is triggered.

[0105] See also Figure 18 and Figure 19 , Figure 18 for Figure 13 The structural diagram of the limit detection component when the fork is in the zero position state; Figure 19 for Figure 15 The structural diagram of the zero position detection component when the fork is in the zero position state is shown. Figure 18 and Figure 19 In the zero position state shown, the limit trigger plate 620 does not block the limit protection switch 610 , and the zero position trigger plate 520 blocks the zero position detection switch 510 , so that the limit protection switch 610 is not triggered and only the zero position detection switch 510 is triggered.

[0106] Since the fork arm 410 of the fork 400 is located away from the hinge plate 430, the fork 400 can rotate a smaller angle based on the hinge plate 430 to make the movement stroke of the fork arm 410 meet actual needs. For example, the swing angle range can be set to 0-10°. The zero position trigger plate 520 and the limit trigger plate 620 are located on the hinge plate 430. Since the swing angle range is small, the movement of the two trigger plates is also small. The triggering of the zero position detection switch 510 and the limit protection switch 610 does not require the trigger plate to be completely blocked. The triggering can be triggered by partially blocking its sensing surface. For example Figure 13 As shown, when in the limit position, the sensing surface of the limit protection switch 610 is partially blocked.

[0107] The zero position detection switch 510 and the limit protection switch 610 can use the same switch type sensor. The transport forklift is provided with a controller for connecting with the electric mechanism 200 of the fork module 10, the zero position detection switch 510 and the limit protection switch 610, and the motors of the transport vehicle 20.

[0108] In the embodiment of the present application, a zero position detection assembly 500 and a limit detection assembly 600 are provided to detect the tilt state of the fork 400. When the fork 400 rotates upward to the limit state, the limit protection switch 610 is triggered and a detection signal is transmitted to the controller, which controls the electric mechanism 200 to stop driving, thereby preventing the electric mechanism 200 from continuing to drive the connecting rod mechanism 300 to push the fork 400 to rotate upward and cause structural damage. When the fork 400 rotates downward to the zero position state, the zero position detection switch 510 is triggered and a detection signal is transmitted to the controller, which controls the electric mechanism 200 to stop driving, thereby preventing the electric mechanism 200 from continuing to drive the connecting rod mechanism 300 to pull the fork 400 to rotate downward and cause structural damage. At the same time, the triggering of the zero position detection switch 510 can also calibrate the horizontal posture of the fork 400, ensuring that the fork 400 is in the required horizontal state, so that the fork can be picked up smoothly.

[0109] In some embodiments of the present application, Figure 12 、 Figure 14 、 Figure 16 and Figure 17 As shown, the connecting frame 120 includes a connecting bottom plate 121 , two connecting vertical plates 122 and a connecting horizontal plate 123 .

[0110] The connecting base plate 121 is disposed horizontally, with its ends fixedly connected to the two mounting plates 110. Two connecting risers 122 are spaced apart along the second direction y on the connecting base plate 121, with mounting gaps 130 formed between the connecting risers 122 and the mounting plates 110. A connecting transverse plate 123 is disposed horizontally, located between the two connecting risers 122, and fixedly connected to the two connecting risers 122.

[0111] The zero position detection switch 510 is fixed on one side of the connecting horizontal plate 123 close to one connecting vertical plate 122 ; the limit protection switch 610 is fixed on one side of the connecting horizontal plate 123 close to the other connecting vertical plate 122 .

[0112] The connection frame 120 adopts the above-mentioned configuration, including a plurality of fixedly connected transverse and longitudinal connection plates, so that the mounting frame 100 has a more stable structure and a stronger load-bearing capacity. Figure 12 The mounting frame 100 is shown as including a horizontally mounted top plate 124, fixed to the top of the vertical connecting plate 122. Its ends are fixedly connected to the two mounting plates 110, further strengthening the structural stability of the mounting frame 100. A baffle 125 is fixedly mounted on the side of the connecting bottom plate 121 near the forks 400. Baffle 125 is parallel to the back plates 420 of the forks 400 and extends from one mounting plate 110 to the other. It is designed to abut against the back plates 420 of the forks 400 when the forks 400 are rotated downward to the zero position, providing protection.

[0113] The structures and positions of the zero trigger plate 520 and the limit trigger plate 620 are described below.

[0114] In some embodiments of the present application, Figure 3 and Figure 8 As shown, the top surface of the hinge plate 430 is a stepped surface having a mounting step 431 . The mounting step 431 extends along the second direction y and is used for mounting the zero trigger plate 520 and the limit trigger plate 620 .

[0115] like Figure 15 、 Figure 16 and Figure 19 As shown, the zero position trigger plate 520 is fixedly connected to a mounting step 431 on a hinged plate 430, which faces the top of the fork 400, via a first trigger connecting plate 530. The first trigger connecting plate 530 extends horizontally from the hinged plate 430. The zero position trigger plate 520 is perpendicularly connected to the extension of the first trigger connecting plate 530, so that the zero position trigger plate 520 blocks and triggers the zero position detection switch 510 when the fork 400 is in the zero position, and does not block or trigger the zero position detection switch 510 when the fork 400 is not in the zero position.

[0116] like Figure 13 、 Figure 16 and Figure 18As shown, the limit trigger plate 620 is fixedly connected to the mounting step 431 on the top of the fork 400 via the second trigger connecting plate 630 and the other hinged plate 430. The second trigger connecting plate 630 extends horizontally from the hinged plate 430. The limit trigger plate 620 is perpendicularly connected to the extension of the second trigger connecting plate 630. The limit trigger plate 620 is provided with an avoidance groove 621. The avoidance groove 621 is positioned so that when the fork 400 is not in the limit position, the avoidance groove 621 faces the sensing surface of the limit protection switch 610. When the fork 400 is in the limit position, the avoidance groove 621 is offset from the sensing surface of the limit protection switch 610. This allows the limit trigger plate 620 to avoid the limit protection switch 610 when the fork 400 is not in the limit position, and to block and trigger the limit protection switch 610 when the fork 400 is in the limit position.

[0117] Specifically, the zero-position trigger plate 520 and the first trigger connecting plate 530 , and the limit trigger plate 620 and the second trigger connecting plate 630 can all be integrally formed, with the sheet metal being bent into an L-shaped plate.

[0118] The zero trigger plate 520 and the limit trigger plate 620 are spaced a certain distance from the connecting transverse plate 123 in the height direction, so that the zero trigger plate 520 and the limit trigger plate 620 are not interfered with by the connecting transverse plate 123 when they rotate with the fork 400 .

[0119] In the embodiment of the present application, the zero position trigger plate 520 and the limit trigger plate 620 are installed in the above-described manner, and an avoidance groove 621 is provided on the limit trigger plate 620. On the one hand, when the fork 400 is in the zero position or the limit position, only one switch is triggered. On the other hand, the installation of the zero position detection assembly 500 and the limit detection assembly 600 is relatively simple.

[0120] Below, the specific structure of the transport forklift provided in the embodiment of the present application is described in detail.

[0121] See also Figure 20 and Figure 21 , Figure 20 This is a three-dimensional diagram of a transport forklift according to an embodiment of the present application when the forks are in a zero position; Figure 21 This is a three-dimensional diagram of the transport forklift of the embodiment of the present application when the fork is rotated upward to the limit state. Figure 20 and Figure 21 As shown, the transport forklift includes the fork module 10 according to any one of the above embodiments, and a transport vehicle 20 .

[0122] The transport vehicle 20 includes a vehicle body 21 , and a lifting frame 22 and a lifting mechanism 23 installed on the vehicle body 21 .

[0123] The mounting frame 100 of the fork module 10 is provided with a roller 140 which is in rolling connection with the lifting frame 22. The mounting frame 100 of the fork module 10 is also in driving connection with the lifting mechanism 23.

[0124] Driven by the lifting mechanism 23 , the fork module 10 can move up and down along the lifting frame 22 , and can move on the working plane driven by the vehicle body 21 to transport goods at different locations.

[0125] The transport forklift provided in the embodiment of the present application is equipped with the fork module 10 of any of the above-mentioned embodiments, and uses an electric mechanism 200 as a power source to drive the rotation of the fork 400. Compared with the use of a cylinder drive in the prior art, the adjustment accuracy of the electric mechanism 200 is higher, which can make the rotation angle of the fork 400 more accurate, and achieve high-precision adjustment of the fork tilt angle. In addition, the use of a cylinder drive in the related art will cause hydraulic shock during start-up and shutdown, affecting the working stability of the fork module 10. The embodiment of the present application uses an electric mechanism, which makes the adjustment of the fork tilt angle smoother, thereby improving the working stability of the fork module 10. The embodiment of the present application uses a connecting rod mechanism 300 as a transmission component. Compared with the use of a cam component in the prior art, the adjustment arm of the connecting rod mechanism 300 is longer, which is more labor-saving. It does not require the power mechanism 200 to provide a large power to drive the fork 400 to rotate, which can reduce the energy consumption and power of the power mechanism 200.

[0126] Specifically, the lifting frame 22 can be as follows Figure 20 As shown, the fork module 10 is fixed to the end of the vehicle body 21 so that the fork module 10 is completely located outside the vehicle body 21, so that the fork module 10 can be lowered to the lowest position along the lifting frame 22 to fork the cargo on the ground.

[0127] The lifting frame 22 can be a single column or a Figure 21 The structure shown is a gantry structure, comprising two columns 22a spaced apart. Figure 1 As shown, the outer sides of the two mounting plates 110 of the mounting frame 100 are both provided with rollers 140, which are rollingly mounted in the longitudinal slide grooves of the columns 22a, so that the fork module 10 can be raised and lowered along the lifting frame 22 to pick up and place goods at different heights.

[0128] The lifting mechanism 23 can be set on the column 22a to lift the fork module 10 on both sides; Figure 20 As shown, it is arranged between the two columns 22a. The lifting mechanism 23 can be driven by hydraulic pressure, or by a motor driven pulley or sprocket chain to lift the fork module 10. Figure 21As shown, the lifting mechanism 23 includes a lifting motor (not shown), a transmission wheel 23a and a conveyor belt 23b. The two transmission wheels 23a are spaced apart in the longitudinal direction, and the conveyor belt 23b is wound around the two transmission wheels 23a and fixedly connected to the mounting frame 100. The lifting motor drives the transmission wheel 23a to rotate, so that the conveyor belt 23b drives the fork module 10 to move up and down. Figure 10 and Figure 11 As shown, a hanging hole 1211 is provided on the connecting bottom plate 121 of the connecting frame 120 for fixed connection with the conveyor belt 23b.

[0129] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0130] Each embodiment in this specification is described in a related manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0131] The above description is only a preferred embodiment of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application are included in the scope of protection of the present application.

Claims

1. A fork module, characterized in that: include: A mounting frame (100), an electric mechanism (200), a connecting rod mechanism (300) and a fork (400); The electric mechanism (200) and the connecting rod mechanism (300) are installed on the inner side of the mounting frame (100) along a first direction, and the fork (400) is installed on the outer side of the mounting frame (100) along the first direction; the first direction is the direction in which the fork (400) extends; The electric mechanism (200) is drivingly connected to the first end of the connecting rod mechanism (300) to provide longitudinal power to the first end of the connecting rod mechanism (300); the second end of the connecting rod mechanism (300) is located at the lower part of the mounting frame (100); The upper portion of the cargo fork (400) is hinged to the mounting frame (100), and the lower portion is hinged to the second end of the connecting rod mechanism (300); The connecting rod mechanism (300) is used to convert the longitudinal power applied to the first end thereof into the transverse power applied to the second end, and to push the lower portion of the fork (400) to rotate upward relative to the mounting frame (100) through the second end, so as to tilt the fork (400) backward; or to pull the lower portion of the fork (400) to rotate downward relative to the mounting frame (100) through the second end, so as to tilt the fork (400) forward.

2. The fork module according to claim 1, characterized in that: The link mechanism (300) comprises: a longitudinal sliding assembly (310), a first link (320), a transverse sliding assembly (330) and a second link (340); The first end of the first connecting rod (320) is hinged to the longitudinal sliding assembly (310), and is connected to the inner side of the mounting frame (100) in a sliding manner along the second direction through the longitudinal sliding assembly (310); the second end of the first connecting rod (320) is hinged to the transverse sliding assembly (330), and is connected to the inner side of the mounting frame (100) in a sliding manner along the second direction through the transverse sliding assembly (330); the second direction is perpendicular to the first direction; The first end of the second connecting rod (340) is hinged to the transverse sliding assembly (330); the second end of the second connecting rod (340) is hinged to the lower part of the fork (400); The electric mechanism (200) is connected to the longitudinal sliding assembly (310) so as to drive the first end of the first connecting rod (320) to move longitudinally through the longitudinal sliding assembly (310), and to cause the second end of the first connecting rod (320) to move laterally based on the transverse sliding assembly (330); Driven by the transverse sliding assembly (330), the second connecting rod (340) pushes or pulls the lower part of the fork (400).

3. The fork module according to claim 2, characterized in that: The electric mechanism (200) is arranged on the top of the mounting frame (100); The transverse sliding assembly (330) is arranged at the lower part of the mounting frame (100); The longitudinal sliding assembly (310) is spaced apart from the transverse sliding assembly (330) in a first direction and is located between the electric mechanism (200) and the transverse sliding assembly (330).

4. The fork module according to claim 3, characterized in that: The electric mechanism (200) comprises: an electric telescopic rod (210); The longitudinal sliding assembly (310) comprises: a first sliding rail (311) and a first sliding block (312); The first slide rail (311) is longitudinally fixed to the inner side of the mounting frame (100) along the second direction; the first slider (312) is slidably connected to the first slide rail (311) and connected to the electric telescopic rod (210); The first end of the first connecting rod (320) is hinged to the first sliding block (312) via a first connecting plate (313); The transverse sliding assembly (330) comprises: a second slide rail (331) and a second slider (332); The second slide rail (331) is transversely fixed to the inner side of the mounting frame (100) along the second direction; the second sliding block (332) is slidably connected to the second slide rail (331); The second end of the first connecting rod (320) and the first end of the second connecting rod (340) are hinged to the second sliding block (332) via a second connecting plate (333).

5. The fork module according to claim 2, characterized in that: The mounting frame (100) comprises: two mounting plates (110) arranged relatively spaced apart; The number of the electric mechanism (200) and the connecting rod mechanism (300) is two groups, and the two groups of the electric mechanism (200) and the connecting rod mechanism (300) are respectively mounted on the inner sides of the two mounting plates (110) along the second direction relative to each other; The upper portion of the fork (400) has two first hinge points (400a) respectively hinged to the two mounting plates (110); the lower portion of the fork (400) has two second hinge points (400b) respectively hinged to the second ends of the two sets of link mechanisms (300); Under the respective driving of the two sets of electric mechanisms (200), the second ends of the two sets of link mechanisms (300) can simultaneously push or pull the lower part of the fork (400), so that the second hinge point (400b) of the fork (400) rotates around the first hinge point (400a).

6. The fork module according to claim 5, characterized in that: The mounting frame (100) further includes: a connecting frame (120); The connecting frame (120) is fixed between the two mounting plates (110), and a mounting gap (130) is formed between the two sides and the two mounting plates (110); The upper portion of the fork (400) is provided with two hinge plates (430) spaced apart along a second direction on one side thereof facing the mounting frame (100); each hinge plate (430) is located in the mounting interval (130); the first hinge point (400a) is located on the hinge plate (430) and is hinged to the connecting frame (120) and the mounting plate (110) via a hinge shaft (440); The lower part of the fork (400) is provided with two hinged seats (450) spaced apart along a second direction on one side thereof facing the mounting frame (100); the hinged seats (450) serve as second hinge points (400b) and are hinged to the second end of the connecting rod mechanism (300).

7. The fork module according to claim 6, characterized in that: The fork module further comprises: a zero position detection component (500) and a limit detection component (600); The zero position detection assembly (500) comprises: a zero position detection switch (510) and a zero position trigger plate (520); The limit detection component (600) includes: a limit protection switch (610) and a limit trigger plate (620); The zero-position trigger plate (520) and the limit trigger plate (620) are respectively connected to the two hinge plates (430) and can rotate synchronously with the fork (400); The zero position detection switch (510) and the limit protection switch (610) are both fixed inside the connecting frame (120), and their positions correspond to the zero position trigger plate (520) and the limit trigger plate (620) respectively; the zero position detection switch (510) is used to stop the rotation of the fork (400) based on the triggering of the zero position trigger plate (520) when the fork (400) rotates downward to the zero position state; the limit protection switch (610) is used to stop the rotation of the fork (400) based on the triggering of the limit trigger plate (620) when the fork (400) rotates upward to the limit state.

8. The fork module according to claim 7, characterized in that: The connecting frame (120) comprises: a connecting bottom plate (121), two connecting vertical plates (122) and a connecting horizontal plate (123); The connecting base plate (121) is arranged horizontally, and its two ends are fixedly connected to the two mounting plates (110); The two connecting vertical plates (122) are spaced apart along the second direction on the connecting bottom plate (121), and the mounting space (130) is formed between the connecting vertical plates (122) and the mounting plate (110); The connecting horizontal plate (123) is arranged horizontally, located between the two connecting vertical plates (122), and fixedly connected to the two connecting vertical plates (122); The zero position detection switch (510) is fixed on one side of the connecting horizontal plate (123) close to a connecting vertical plate (122); The limit protection switch (610) is fixed on a side of the connecting horizontal plate (123) close to another connecting vertical plate (122).

9. The fork module according to claim 8, characterized in that: The zero position trigger plate (520) is fixedly connected to a mounting step (431) of the hinge plate (430) toward the top of the fork (400) through a first trigger connecting plate (530); the first trigger connecting plate (530) extends horizontally from the hinge plate (430); the zero position trigger plate (520) is vertically connected to the extension of the first trigger connecting plate (530), so that the zero position trigger plate (520) blocks and triggers the zero position detection switch (510) when the fork (400) is at the zero position, and does not block and trigger the zero position detection switch (510) when the fork (400) is not at the zero position; The limit trigger plate (620) is fixedly connected to the mounting step (431) of the other hinge plate (430) toward the top of the fork (400) through the second trigger connecting plate (630); the second trigger connecting plate (630) extends horizontally from the hinge plate (430); the limit trigger plate (620) is vertically connected to the extension of the second trigger connecting plate (630), and the limit trigger plate (620) is provided with an avoidance groove (621), so that the limit trigger plate (620) avoids and does not trigger the limit protection switch (610) when the fork (400) is not in the limit position, and blocks and triggers the limit protection switch (610) when the fork (400) is in the limit position.

10. A transport forklift, characterized in that: Comprising the fork module (10) according to any one of claims 1 to 9, and a transport vehicle (20); The transport vehicle (20) comprises: a vehicle body (21), and a lifting frame (22) and a lifting mechanism (23) mounted on the vehicle body (21); The mounting frame (100) of the fork module (10) is provided with a roller (140) which is rollingly connected to the lifting frame (22); the mounting frame (100) of the fork module (10) is also drivingly connected to the lifting mechanism (23); Driven by the lifting mechanism (23), the fork module (10) can move up and down along the lifting frame (22), and can move on the working plane driven by the vehicle body (21) to transport goods at different locations.

Images