Impact state monitoring device, pallet fork and stacking machine

Abstract

The embodiment of the invention provides an impact state monitoring device, a pallet fork and a stacking machine. The impact state monitoring device comprises a shell, a first transmission mechanism and a detection sensor. The first transmission mechanism is movably arranged on the shell. In addition, the first transmission mechanism is provided with a trigger part and a collision part, and the detection sensor is arranged on the shell. The collision part is used for colliding and contacting with the tray, and the trigger part is used for triggering the detection sensor. And when the first transmission mechanism moves forwards / backwards along the collision direction after being collided by the collision part, the first transmission mechanism directly or indirectly triggers the detection sensor through the trigger part. It can be understood that when the first transmission mechanism moves forwards / backwards in the impact direction of the first transmission mechanism, the trigger part can trigger the detection sensor, then the tray state in the direction before the tray is forked and the tray state in the direction after the tray is forked can be detected, and compared with the prior art, the use of the detection sensor is saved, and the installation space of the detection device is reduced.

Description

Technical Field

[0001] This application relates to the field of logistics equipment technology, and in particular to an impact condition monitoring device, forks, and stacker crane. Background Technology

[0002] In logistics equipment, forks are components located at the ends of stacker cranes or forklifts, used to pick up goods.

[0003] In pallet-based warehousing solutions, goods are placed on pallets (e.g., grid pallets), which are then positioned in racking locations. Stacker cranes or forklifts use their forks to pick up the pallets and place or remove them from the racking to complete the retrieval and placement of goods.

[0004] However, during the process of using forks to pick up and place goods from pallets, if the pallet is damaged, collapses, or shifts, or if the racking system settles or is misaligned, continuing to use the forks can cause the pallet to detach from the racking system and the goods to fall off. Similarly, even after the forks have finished picking up the pallet and are removing it from the racking system, if the goods shake and interfere with or collide with the racking system, or if there are any strips of material on the pallet that become entangled with the racking system or forks, or if there is relative movement between the pallet and forks due to inertia, the pallet may still detach from the racking system and the goods may fall off.

[0005] In current technical solutions, forks are typically installed in pairs and move in both directions. This means that to ensure comprehensive safety detection, a pre-picking detection device and a post-picking detection device are needed in both directions. If each detection device requires a corresponding sensor, then eight sensors are needed, which not only places certain requirements on installation location but also significantly increases manufacturing costs. What is needed now is a front-to-back integrated detection device that shares sensors, reducing the number of sensors required and lowering manufacturing costs. Summary of the Invention

[0006] This application provides an impact state monitoring device, forks, and a stacker crane to solve the problem in the prior art that multiple sensors are required to prevent goods from falling during the process of the forks picking up and placing goods from pallets.

[0007] In a first aspect, embodiments of this application provide an impact state monitoring device, comprising:

[0008] case;

[0009] The first transmission mechanism is movably mounted on the housing, and the first transmission mechanism is provided with a triggering part and a collision part;

[0010] The detection sensor is mounted on the housing.

[0011] When the first transmission mechanism moves forward or backward along the impact direction after being impacted by the collision part, the first transmission mechanism will directly or indirectly trigger the detection sensor through the trigger part.

[0012] In one feasible implementation, the triggering part includes a first state part and a second state part located on both sides of the first state part, with the first state part protruding from or recessed from the second state part. During the forward / backward movement of the following collision part, the second state part directly or indirectly triggers the detection sensor.

[0013] In one feasible implementation, the collision part includes a first collision part and a second collision part;

[0014] The first collision section is used for detection before the pallet is picked up by forklift;

[0015] The second collision section is used for detection after the pallet is picked up by the forklift;

[0016] The first and second collision parts can be either separate or integrated structures.

[0017] In one feasible implementation, the first transmission mechanism further includes a transmission rod and a first return spring;

[0018] The transmission rod passes through the housing, and the collision part is connected to the end of the transmission rod;

[0019] The first reset spring is used to reset the transmission rod to its initial position after it moves forward / backward following the collision part. At the initial position of the transmission rod, the detection sensor corresponds to the first state part.

[0020] In one feasible implementation, the detection end of the detection sensor is set to correspond to the triggering part. In the initial state, the detection end of the detection sensor corresponds to the first state of the triggering part. When the triggering part moves forward / backward with the touch part, the first state switch to the second state corresponding to the detection sensor and squeezes the detection end of the detection sensor to trigger the detection sensor.

[0021] In one feasible implementation, a second transmission mechanism is also included, the movement direction of which forms an angle with the movement direction of the first transmission mechanism, and the triggering unit triggers the detection sensor through the second transmission mechanism.

[0022] In one feasible implementation, the second transmission mechanism includes an abutment block that is slidably disposed within the housing. The sliding direction of the abutment block is perpendicular to the moving direction of the trigger part. One end of the abutment block interacts with the trigger part, and the side end of the abutment block abuts against the detection sensor via an inclined surface.

[0023] In one feasible implementation, the corresponding ends of the abutment block and the trigger part, as well as the detection end of the detection sensor, are all provided with rolling elements; a second return spring is provided between the abutment block and the housing.

[0024] In one feasible implementation, the trigger and the transmission rod are either separate structures or an integrated structure.

[0025] In one feasible implementation, the triggering part includes a force transmission plate, which is configured as a crest structure with wings on both sides or a trough structure with wings on both sides.

[0026] In one feasible implementation, the detection sensor is a pressure sensor or a detection switch, and the detection switch is a wired switch or a wireless self-generating switch.

[0027] Secondly, embodiments of this application provide a fork, including fork fingers and an impact state monitoring device as described in the first aspect, which is disposed on the fork fingers to detect an impact and stop operation.

[0028] Thirdly, embodiments of this application provide a stacker crane including at least one fork as described in the second aspect.

[0029] This application provides an impact state monitoring device, including a housing, a first transmission mechanism, and a detection sensor. The first transmission mechanism is movably mounted on the housing. Furthermore, the first transmission mechanism includes a triggering part and a collision part, and the detection sensor is mounted on the housing. The collision part is used to collide or contact with a tray, and the triggering part is used to trigger the detection sensor.

[0030] When the first transmission mechanism moves forward or backward along the impact direction after the collision with the abnormal pallet, the first transmission mechanism directly or indirectly triggers the detection sensor through the triggering part. It can be understood that the triggering part can trigger the detection sensor when the first transmission mechanism moves forward or backward along the impact direction, thereby detecting the pallet status in both the direction before and after pallet forklift removal. Compared with the existing technology, this saves the use of detection sensors and reduces the installation space of the detection device.

[0031] Secondly, embodiments of this application also provide a fork, including fork fingers and an impact state monitoring device as described in the first aspect, disposed on the fork fingers to detect and stop operation after an impact occurs. Since this fork includes the impact state monitoring device described in any of the above technical solutions, it possesses all the beneficial effects of the impact state monitoring device of any of the above technical solutions, which will not be elaborated further here.

[0032] Thirdly, embodiments of this application provide a stacker crane including at least one fork as described in the second aspect. Since the stacker crane includes the fork described in any of the above technical solutions, it has all the beneficial effects of the fork in any of the above technical solutions, which will not be repeated here. Attached Figure Description

[0033] The accompanying drawings, which are provided to further illustrate the invention and constitute a part of this invention, are illustrative embodiments of the invention and their descriptions are used to explain this application and do not constitute an undue limitation of the invention.

[0034] In the attached diagram:

[0035] Figure 1 This is a first structural schematic diagram of an impact state monitoring device provided in an embodiment of this application;

[0036] Figure 2 yes Figure 1 A schematic diagram of the impact condition monitoring device after removing the housing;

[0037] Figure 3 This is a side view of an impact state monitoring device provided in an embodiment of this application;

[0038] Figure 4 This is a side view of an impact state monitoring device provided in another embodiment of this application;

[0039] Figure 5 yes Figure 3 A schematic diagram of the impact monitoring device fixed to the forks;

[0040] Figure 6 yes Figure 5 A magnified view of region A in the middle.

[0041] Explanation of reference numerals in the attached figures:

[0042] 100 - Housing; 200 - First transmission mechanism; 300 - Detection sensor; 400 - Second transmission mechanism; 500 - Pin; 600 - Interdigitator;

[0043] 210 - Collision part; 220 - Triggering part; 230 - Transmission rod; 240 - First return spring; 410 - Abutment block; 420 - Limiting post; 430 - Second return spring; 440 - Rolling element; 450 - Slider; 460 - Guide rail;

[0044] 211-First collision part; 212-Second collision part; 221-First state part; 222-Second state part; 223-Force application space; 241-First spring; 242-Second spring. Detailed Implementation

[0045] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0046] In the description of the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0048] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0049] In logistics equipment, forks are components located at the ends of stacker cranes or forklifts, used to pick up goods.

[0050] In pallet-based warehousing solutions, goods are placed on pallets (e.g., grid pallets), which are then positioned in racking locations. Stacker cranes or forklifts use their forks to pick up the pallets and place or remove them from the racking to complete the retrieval and placement of goods.

[0051] However, accidents can easily occur when forks are used to pick up and place goods from pallets. For example, during outbound or inbound operations, after the forks of a stacker crane pick up a pallet, they carry the pallet away from the rack. If the pallet is damaged, collapsed, or shifted during the pallet-picking process, or if the rack experiences subsidence or misalignment, the forks may get stuck on the pallet or the goods. If the problem is not detected in time, the pallet can easily fall off the rack, and the goods can fall off the pallet.

[0052] Similarly, when the forks have picked up the goods and carried them away from the shelf, if the goods interfere with or collide with the shelf due to shaking, if there are strips on the pallet that become entangled with the shelf or forks, or if the pallet and forks move relative to each other due to inertia, the pallet or goods may fall from a height.

[0053] In current technical solutions, forks are typically installed in pairs and move in both directions. This means that to ensure comprehensive safety detection, a pre-picking detection device and a post-picking detection device are needed in both directions. If each detection device requires a corresponding sensor, then eight sensors are needed, which not only places certain requirements on installation location but also significantly increases manufacturing costs. What is needed now is a front-to-back integrated detection device that shares sensors, reducing the number of sensors required and lowering manufacturing costs.

[0054] To address the problem in existing technologies where multiple sensors are required due to the risk of goods falling during pallet handling and loading / unloading, this application provides an impact monitoring device, forks, and a stacker crane. The solution provided in this application will be described in detail below with reference to the accompanying drawings.

[0055] Figure 1 This is a first structural schematic diagram of an impact state monitoring device provided in an embodiment of this application; Figure 2 yes Figure 1 A schematic diagram of the impact condition monitoring device after removing the housing; Figure 3 This is a side view of an impact state monitoring device provided in an embodiment of this application; Figure 4 This is a side view of an impact state monitoring device provided in another embodiment of this application.

[0056] Reference Figures 1 to 4 As shown, in a first aspect, embodiments of this application provide an impact state monitoring device, including a housing 100, a first transmission mechanism 200, and a detection sensor 300.

[0057] The detection sensor 300 is disposed in the housing 100. The detection sensor 300 can be a pressure sensor or a detection switch. The detection switch can be a wired switch or a wireless self-generating switch.

[0058] In addition, the first transmission mechanism 200 is movably mounted on the housing 100. For example, the first transmission mechanism 200 can be horizontally mounted on the housing 100 and can move horizontally under the action of external force.

[0059] The first transmission mechanism 200 is provided with a triggering part 220 and a collision part 210. The collision part 210 can be located at the end of the first transmission mechanism 200 to facilitate contact and collision with the tray. The triggering part 220 can change the direction of force transmission to trigger the detection sensor 300. The triggering part 220 can be located in the middle of the first transmission mechanism 200 and inside the housing 100. When the first transmission mechanism 200 moves horizontally along the impact direction, the triggering part 220 moves horizontally under the drive of the first transmission mechanism 200.

[0060] When the first transmission mechanism 200 moves forward or backward along the impact direction after being impacted by the collision part 210 (generally the extension / retraction direction of the forks), the first transmission mechanism 200 directly or indirectly triggers the detection sensor 300 through the trigger part 220. It can be understood that since the trigger part 220 can trigger the detection sensor 300 when the first transmission mechanism 200 moves forward or backward along its impact direction, the pallet state in both the pre- and post-pallet fork lifting directions can be detected. Compared to existing technologies, this saves on the use of the detection sensor 300 and reduces the installation space of the impact state monitoring device.

[0061] Reference Figure 3 As shown, in some examples, the impact state monitoring device also includes a second transmission mechanism 400. The movement direction of the second transmission mechanism 400 is at an angle to the movement direction of the first transmission mechanism 200. During the movement of the first transmission mechanism 200, the trigger part 220 drives the second transmission mechanism 400 to move, thereby triggering the detection sensor 300.

[0062] Specifically, one end of the second transmission mechanism 400 contacts the trigger part 220, and the detection end of the detection sensor 300 abuts against the second transmission mechanism 400. During the operation of the first transmission mechanism 200, the second transmission mechanism 400 is driven to operate, thereby triggering the detection sensor 300. It can be understood that by setting the second transmission mechanism 400 in the housing 100, the force direction of the detection sensor 300 can be changed, thereby facilitating the spatial layout of the entire device and the installation of different detection sensors 300.

[0063] For example, the second transmission mechanism 400 is disposed inside the housing 100 and is disposed vertically on the housing 100. One end of the second transmission mechanism 400 is connected to the inner wall of the housing 100, and the other end abuts against the trigger part 220 of the first transmission mechanism 200.

[0064] The detection sensor 300 is fixedly mounted on the housing 100, with its detection end facing the second transmission mechanism 400. Specifically, the detection sensor 300 can be disposed between the second transmission mechanism 400 and the housing 100. For example, in some examples, there is a certain space between the bottom of the second transmission mechanism 400 (the end where the second transmission mechanism 400 connects to the housing 100) and the housing 100, and the detection sensor 300 can be disposed in this space. When the second transmission mechanism 400 moves downward in the vertical direction, a certain pressure is applied to the detection end of the detection sensor 300. Alternatively, the detection sensor 300 can be disposed on the side of the second transmission mechanism 400, and when the second transmission mechanism 400 moves downward in the vertical direction, a certain pressure can be applied to the detection end of the detection sensor 300 through other components connected to it. It should be noted that the detection end of the detection sensor 300 refers to the end of the detection sensor 300 used to detect pressure.

[0065] In this impact state monitoring device, when the first transmission mechanism 200 is subjected to an external force and moves along the impact direction, the first transmission mechanism 200 will drive the second transmission mechanism 400 to move through the trigger part 220, thereby causing the second transmission mechanism 400 to apply pressure to the detection sensor 300. Thus, based on the pressure change detected by the detection sensor 300, the abnormal state of the goods can be detected in time to avoid the accident of the goods falling.

[0066] It should be noted that the movement of the first transmission mechanism 200 along the impact direction due to an external force means that the first transmission mechanism 200 moves in any direction along the axial direction due to the impact. For example, when the first transmission mechanism 200 is subjected to a pushing force, it moves to the right; when it is subjected to a pulling force, it moves to the left. In other words, due to the presence of the trigger part 220, regardless of whether the first transmission mechanism 200 moves to the left or right along the axial direction, it can cause the second transmission mechanism 400 to move and apply pressure to the detection sensor 300.

[0067] In other words, this impact condition monitoring device can detect forces in two directions by using only one detection sensor 300, which reduces the number of sensors used and lowers manufacturing costs.

[0068] Reference Figure 4 As shown, in some other examples, the detection end of the detection sensor 300 can also be directly abutted against the trigger part 220, and the trigger part 220 can trigger the detection sensor 300 during the movement of the first transmission mechanism 200.

[0069] Reference Figures 1 to 4As shown, in some examples, the first transmission mechanism 200 includes a transmission rod 230 and a first return spring 240. The transmission rod 230 passes through the housing 100, and the collision part 210 is connected to the end of the transmission rod 230.

[0070] The first reset spring 240 is used to reset the transmission rod 230 to its initial position after it moves forward / backward following the collision part 210. When the transmission rod 230 is in its initial position, the detection sensor 300 corresponds to the first state part 221.

[0071] For example, the first return spring 240 includes a first spring 241 and a second spring 242, and the transmission rod 230 is a rod-shaped member with opposing first and second ends. The transmission rod 230 passes through the housing 100, and both the first and second ends of the transmission rod 230 extend out of the housing 100. A trigger portion 220 is disposed between the first and second ends and located within the housing 100. A collision portion 210 is fixedly disposed at the first end, and the collision portion 210 protrudes from or is recessed from the surface of the housing 100 so as to accept both pushing and pulling forces. For example, the collision portion 210 may be a plate-shaped member.

[0072] For example, after the impact monitoring device is fixedly installed on the forks, if the pallet is damaged, collapsed, or shifted, or if the rack settles or is misaligned, the forks will not be able to accurately extend into the pallet. During the process of the forks extending to pick up goods, the collision part 210 will come into contact with the goods or pallet and push the transmission rod 230 to move. During the movement of the transmission rod 230, it can drive the second transmission mechanism 400 to move and squeeze the detection sensor 300, ultimately causing the detection sensor 300 to detect the pressure.

[0073] When the forks complete the picking up of goods and carry them away from the shelf, if the goods interfere with or collide with the shelf due to shaking, if there are strip-shaped items on the pallet that become entangled with the shelf or forks, or if there is relative movement between the pallet and the forks due to motion inertia, the goods will first come into contact with the collision part 210 that protrudes or is recessed from the surface of the housing 100, thereby pulling the transmission rod 230 to move. During the movement of the transmission rod 230, it can drive the second transmission mechanism 400 to move and squeeze the detection sensor 300, ultimately causing the detection sensor 300 to detect the pressure.

[0074] Furthermore, the first spring 241 is sleeved on the transmission rod 230, and the first spring 241 is located between the collision part 210 and the housing 100; the second spring 242 is sleeved on the transmission rod 230, and the second spring 242 is located between the second end and the housing 100. After the external force is removed, the transmission rod 230 can return to its original position under the action of the first spring 241 or the second spring 242. In addition, a pin 500 is provided at the second end of the transmission rod 230 to block the second spring 242 and prevent it from falling off the transmission rod 230.

[0075] Reference Figure 3 and Figure 4 As shown, the triggering unit 220 includes a first state unit 221 and a second state unit 222 located on both sides of the first state unit 221. The first state unit 221 protrudes from or is recessed from the second state unit 222. During the forward / backward movement of the following collision unit 210, the second state unit 222 directly or indirectly triggers the detection sensor 300.

[0076] Specifically, when the first state part 221 is a convex part, the second state part 222 is a concave part, and when the first state part 221 is a concave part, the second state part 222 is a convex part.

[0077] When the first state part 221 is recessed into the second state part 222, the first state part 221 and the second state part 222 enclose a force application space 223, and the end of the second transmission mechanism 400 or the detection end of the detection sensor 300 is set in this force application space 223.

[0078] In some examples, when the first transmission mechanism 200 moves the triggering part 220, the second state unit 222 will squeeze the second transmission mechanism 400, forcing it to move downward and apply pressure to the detection sensor 300, causing it to generate a trigger signal. That is, during the forward / backward movement of the following collision part 210, the second state unit 222 indirectly triggers the detection sensor 300.

[0079] In other examples, the detection end of the detection sensor 300 faces the trigger unit 220. In the initial state, the detection end of the detection sensor 300 faces the first state unit 221 of the trigger unit 220. When the trigger unit 220 moves forward / backward following the touch unit, the first state unit 221 switches to the second state unit 222, which corresponds to the detection sensor 300, and squeezes the detection end of the detection sensor 300, triggering the detection sensor 300. That is, during the forward / backward movement following the collision unit 210, the second state unit 222 directly triggers the detection sensor 300.

[0080] Conversely, in some examples, the first state section 221 protrudes from the second state section 222. In the initial state, one end of the second transmission structure abuts against the first state section 221, while the other end of the second transmission structure applies a large force to the detection sensor 300. After the first transmission structure moves horizontally under the action of an external force, one end of the second transmission structure changes to abutting against the first state section 221. At this time, the force applied by the other end of the second transmission structure to the detection sensor 300 changes, thereby triggering the detection sensor 300.

[0081] Furthermore, the trigger portion 220 and the transmission rod 230 can be either separate or integrated. For example, a first state portion 221 and a second state portion 222 can be machined onto the transmission rod 230. Alternatively, a force transmission plate can be fixedly mounted on the transmission rod 230 and configured as the trigger portion 220. For example, the force transmission plate can be configured as a crest structure with wings on both sides or a trough structure with wings on both sides.

[0082] A force transmission plate is fixed to the side of the transmission rod 230. The force transmission plate has a bending area configured as a force application space 223. The second transmission mechanism 400 abuts against the force application space 223. The transmission rod 230 drives the second transmission mechanism 400 to move via the force transmission plate, thereby applying pressure to the detection sensor 300. For example, the bending area is formed by two inclined side walls and a bottom wall. It is understood that the two inclined side walls facilitate the application of force to the second transmission mechanism 400, forcing it to move and thus applying pressure to the detection sensor 300 at the other end.

[0083] In other examples, the portion of the transmission rod 230 located within the housing 100 is provided with a first protrusion and a second protrusion at intervals. The first protrusion and the second protrusion are configured as a second state portion 222. The portion of the transmission rod 230 between the first protrusion and the second protrusion is configured as a first state portion 221. The space between the first protrusion and the second protrusion is configured as a force application space 223. The second transmission mechanism 400 abuts against the force application space 223. The transmission rod 230 drives the second transmission mechanism 400 to move through the first protrusion and the second protrusion, thereby applying pressure to the detection sensor 300.

[0084] For example, when the forks pick up goods, if the forks cannot accurately pick up the goods into the holes of the pallet, the transmission rod 230 will be pushed by the goods and move away from the shelf. At this time, the first protrusion will squeeze the second transmission mechanism 400, forcing it to move downward and applying pressure to the detection sensor 300. Conversely, when the forks have finished picking up the pallet and are preparing to remove it from the shelf, if the goods move due to pulling or other reasons and push the transmission rod 230 towards the shelf, the second protrusion on the transmission rod 230 will squeeze the second transmission mechanism 400, forcing it to move downward and applying pressure to the detection sensor 300.

[0085] In addition, in order to facilitate the application of force by the first and second protrusions to the second transmission mechanism 400, both the first and second protrusions have inclined sidewalls.

[0086] Continue to refer to Figures 1 to 3As shown, the second transmission mechanism 400 includes an abutment block 410 and a limiting post 420. The abutment block 410 is slidably disposed in the housing 100. A second reset spring 430 is disposed between the abutment block 410 and the housing 100. The sliding direction of the abutment block 410 is perpendicular to the moving direction of the trigger part 220. One end of the abutment block 410 interacts with the trigger part 220. The side end of the abutment block 410 abuts against the detection sensor 300 through an inclined surface.

[0087] For example, one end of the abutment block 410 abuts against the force application space 223 of the first transmission mechanism 200, and the limiting post 420 is fixedly disposed at the other end of the abutment block 410. The limiting post 420 is slidably disposed on the housing 100, and the second return spring 430 is sleeved on the limiting post 420. One end of the second return spring 430 abuts against the abutment block 410, and the other end abuts against the housing 100. The detection end of the detection sensor 300 faces the abutment block 410. It can be understood that under the action of the second return spring 430, the abutment block 410 can abut against the force application space 223. When the abutment block 410 is subjected to the force applied by the first transmission mechanism 200, it will overcome the elastic force of the second return spring 430 and move, and exert a force on the detection sensor 300 facing the abutment block 410. After the force applied by the first transmission mechanism 200 to the abutment block 410 is removed, the abutment block 410 will move upward under the elastic force of the second reset spring 430 and return to its original position. At this time, the force between the abutment block 410 and the detection sensor 300 will also return to its initial value (0 or a certain fixed value).

[0088] In some examples, a rolling element 440 is provided at the corresponding end of the abutment block 410 and the trigger part 220, as well as at the detection end of the detection sensor 300. For example, the rolling element 440 is rotatably disposed at the end of the abutment block 410 facing away from the limiting post 420 via a mounting shaft, and the outer edge of the rolling element 440 contacts the first transmission mechanism 200. Specifically, the rolling element 440 is located in the force application space 223, and its outer edge abuts against the trigger part 220. It is understood that because the rolling element 440 can rotate around the mounting shaft, when the first transmission mechanism 200 moves along its impact direction, there is less friction between the first transmission mechanism 200 and the rolling element 440, which is beneficial for both the horizontal movement of the first transmission mechanism 200 and for pushing the abutment block 410 to move vertically.

[0089] Continue to refer to Figure 2As shown, in some examples, the second transmission mechanism 400 further includes a guide rail 460 and a slider 450. One end of the guide rail 460 is fixedly mounted on the housing 100, and the guide rail 460 is parallel to the limiting post 420. The slider 450 is fixedly mounted on the abutment block 410, and the slider 450 is connected to the guide rail 460 to allow the abutment block 410 to move along the guide rail 460. For example, the limiting post 420 is vertically mounted on the housing 100, and the abutment block 410 moves vertically under the action of the limiting post 420. Correspondingly, the guide rail 460 is vertically mounted on the housing 100, and the abutment block 410 moves stably vertically under the combined action of the slider 450 and the guide rail 460.

[0090] Continue to refer to Figures 1 to 3 As shown, in some examples, the detection sensor 300 is horizontally disposed in the housing 100, and the side of the abutment block 410 is provided with an abutment groove. The abutment groove has a sidewall with an inclined angle. The detection end of the detection sensor 300 is located in the abutment groove, and the sidewall selectively applies pressure to the detection sensor 300. Specifically, when the abutment block 410 is moved downward by the force of the trigger part 220, the sidewall of the abutment groove applies pressure to the detection end of the detection sensor 300; conversely, the sidewall of the abutment groove does not apply pressure to the detection end of the detection sensor 300.

[0091] Continue to refer to Figure 1 and Figure 2 As shown, the collision part 210 includes a first collision part 211 and a second collision part 212. The first collision part 211 is used for detection before the pallet is picked up by the forks; the second collision part 212 is used for detection after the pallet is picked up by the forks; the first collision part 211 and the second collision part 212 are either separate structures or an integral structure.

[0092] In some examples, the first collision part 211 and the second collision part 212 are separate structures, with the first collision part 211 and the second collision part 212 respectively located on the same side end of the transmission rod 230. In addition, the upper surface of the second collision part 212 should protrude from the upper surface of the fork.

[0093] Reference Figure 1 and Figure 2 As shown, in some other examples, the first collision part 211 and the second collision part 212 are an integral structure, with the second collision part 212 located on the first collision part 211. The first collision part 211 is fixed to the end of the transmission rod 230, and the second collision part 212 should be provided on the upper surface protruding from the fork.

[0094] Figure 5 yes Figure 3 A schematic diagram of the impact monitoring device fixed to the forks; Figure 6 yes Figure 5 A magnified view of region A in the middle.

[0095] Reference Figure 5 and Figure 6 As shown, when the impact monitoring device is fixed on the fork, the upper surface of the first impact part 211 is flush with or lower than the support surface of the fork, while the second impact part 212 protrudes from the support surface of the fork.

[0096] Continue to refer to Figure 5 and Figure 6 As shown, in a second aspect, embodiments of this application also provide a fork, including fork fingers 600 and an impact state monitoring device as described in the first aspect disposed on the fork fingers 600, to stop operation after detecting an abnormal pallet state.

[0097] Since the fork includes the impact state monitoring device described in any of the above technical solutions, it has all the beneficial effects of the impact state monitoring device of any of the above technical solutions, which will not be repeated here.

[0098] Thirdly, embodiments of this application provide a stacker crane including at least one fork as described in the second aspect. Since the stacker crane includes the fork described in any of the above technical solutions, it has all the beneficial effects of the fork in any of the above technical solutions, which will not be repeated here.

[0099] It is readily understood that, based on the several embodiments provided in this application, those skilled in the art can combine, split, or reorganize the embodiments of this application to obtain other embodiments, none of which exceed the protection scope of this application.

[0100] The above detailed embodiments further illustrate the purpose, technical solution, and beneficial effects of the embodiments of this application. It should be understood that the above are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solutions of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. An impact condition monitoring device, characterized in that, include: Casing (100); A first transmission mechanism (200) is movably disposed on the housing (100), and the first transmission mechanism (200) is provided with a trigger part (220) and a collision part (210); A detection sensor (300) is disposed on the housing (100); When the first transmission mechanism (200) moves forward or backward along the impact direction after being impacted by the collision part (210), the first transmission mechanism (200) will directly or indirectly trigger the detection sensor (300) through the trigger part (220).

2. The impact state monitoring device according to claim 1, characterized in that, The triggering part (220) includes a first state part (221) and a second state part (222) located on both sides of the first state part (221). The first state part (221) protrudes from or is recessed from the second state part (222). During the forward / backward movement of the following collision part (210), the second state part (222) directly or indirectly triggers the detection sensor (300).

3. The impact state monitoring device according to claim 1, characterized in that, The collision part (210) includes a first collision part (211) and a second collision part (212); The first collision part (211) is used for detection before the pallet is picked up by the forklift; The second collision part (212) is used for detection after the pallet is picked up by the forklift; The first collision part (211) and the second collision part (212) are either separate structures or integral structures.

4. The impact state monitoring device according to claim 2, characterized in that, The first transmission mechanism (200) further includes a transmission rod (230) and a first return spring (240); The transmission rod (230) passes through the housing (100), and the collision part (210) is connected to the end of the transmission rod (230); The first reset spring (240) is used to reset to the initial position after the transmission rod (230) moves forward / backward following the collision part (210). When the transmission rod (230) is in the initial position, the detection sensor (300) corresponds to the first state part (221).

5. The impact state monitoring device according to claim 2, characterized in that, The detection end of the detection sensor (300) is set to correspond to the trigger part (220). In the initial state, the detection end of the detection sensor (300) corresponds to the first state part (221) of the trigger part (220). When the trigger part (220) moves forward / backward with the touch part, the first state part (221) switches to the second state part (222) to correspond to the detection sensor (300) and squeezes the detection end of the detection sensor (300) to trigger the detection sensor (300).

6. The impact state monitoring device according to claim 2, characterized in that, It also includes a second transmission mechanism (400), the movement direction of the second transmission mechanism (400) is at an angle to the movement direction of the first transmission mechanism (200), and the triggering part (220) triggers the detection sensor (300) through the second transmission mechanism (400).

7. The impact state monitoring device according to claim 6, characterized in that, The second transmission mechanism (400) includes an abutment block (410), which is slidably disposed in the housing (100). The sliding direction of the abutment block (410) is perpendicular to the moving direction of the trigger part (220). One end of the abutment block (410) interacts with the trigger part (220), and the side end of the abutment block (410) abuts against the detection sensor (300) through an inclined surface.

8. The impact state monitoring device according to claim 7, characterized in that: The abutment block (410) and the corresponding end of the trigger part (220) and the detection end of the detection sensor (300) are all provided with rolling elements (440); a second return spring (430) is provided between the abutment block (410) and the housing (100).

9. The impact state monitoring device according to claim 4, characterized in that, The trigger part (220) and the transmission rod (230) are either separate structures or an integral structure.

10. The impact state monitoring device according to claim 7, characterized in that, The triggering part (220) includes a force transmission plate, which is configured as a crest structure with wings on both sides or a trough structure with wings on both sides.

11. The impact state monitoring device according to claim 1, characterized in that, The detection sensor is a stress detection sensor (300) or a detection switch, and the detection switch is a wired switch or a wireless self-generating switch.

12. A forklift, characterized in that, It includes at least one fork (600) and at least one impact condition monitoring device disposed on the fork (600) as described in any one of claims 1-11, the impact condition monitoring device stopping operation after detecting an impact by the fork.

13. A stacker crane, characterized in that, Includes at least one fork as described in claim 12.

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