Impact state monitoring apparatus, fork and stacker crane

Abstract

An impact state monitoring apparatus, a fork and a stacker crane. The impact state monitoring apparatus comprises a housing (100), a first transmission mechanism (200) and detection sensors (300), wherein the first transmission mechanism (200) is movably disposed on the housing (100); the first transmission mechanism (200) is provided with trigger portions (220) and a collision portion (210); the detection sensors (300) are disposed on the housing (100); the collision portion (210) is configured to collide with and come into contact with pallets; the trigger portions (220) are configured to trigger the detection sensors (300); and when the first transmission mechanism (200) moves forward / backward in an impact direction after the collision of the collision portion (210), the first transmission mechanism (200) directly or indirectly triggers the detection sensors (300) by means of the trigger portions (220). It can be understood that when the first transmission mechanism (200) moves forward / backward in the impact direction thereof, the trigger portions (220) can all trigger the detection sensors (300), and thus pallet states in two directions, i.e. before and after the pallets are picked up by the fork, can be monitored. Therefore, compared with the prior art, the present application reduces the number of detection sensors (300) used, and also decreases the installation space for a detection apparatus.

Description

Impact state monitoring device, fork and stacker

[0001] Cross-reference to related applications

[0002] The present disclosure claims priority to the Chinese patent application No. 2024104724260, filed on April 19, 2024, entitled "Impact state monitoring device, fork and stacker", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of logistics equipment, in particular to an impact state monitoring device, a fork and a stacker. BACKGROUND

[0004] In the logistics equipment, the fork is a component arranged at the end of the stacker or the forklift and configured to fork the goods.

[0005] In the pallet-level goods storage scheme, the goods are placed on the pallets (such as the cross pallets), and the pallets are placed in the goods locations of the racks. The stacker or the forklift forks the pallets with the forks and places or takes them away from the racks to complete the goods taking and placing.

[0006] However, in the process of forking the pallets to take and place the goods, if the pallets have problems such as damage, collapse and deviation, and the racks have problems such as subsidence and misalignment, and the fork continues to fork, the pallets will fall off the racks, and the goods will fall off the pallets. Similarly, even when the fork completes the forking and takes the pallets away from the racks, the goods will shake and interfere with the racks, or there will be a belt-shaped article on the pallets, which will be entangled between the racks or the fork, or the pallets and the fork will move relatively due to the movement inertia, which will cause the pallets to move relatively between the fork and the pallets when the pallets are taken away from the racks, and then the pallets will fall off the racks, and the goods will fall off the pallets.

[0007] In the current technical solution, the forks are generally arranged in pairs, and the forks are bidirectional movement, that is, in order to ensure the comprehensiveness of the safety detection, a detection device before forking and a detection device after forking need to be arranged in both directions of the fork. If each detection device needs to correspond to a detection sensor, then 8 sensors are needed, which not only has certain requirements on the installation position, but also greatly increases the manufacturing cost. Now a front and rear combined type integrated detection device is needed, which shares a sensor to reduce the number of sensors used and reduce the manufacturing cost. SUMMARY

[0008] The embodiment of the present application provides a collision state monitoring device, a fork and a stacking machine, so as to solve the problem that a plurality of sensors need to be arranged in the prior art to avoid the falling accident of goods in the process that the fork forks a pallet to take and place goods.

[0009] In a first aspect, the embodiment of the present application provides a collision state monitoring device, comprising:

[0010] A shell;

[0011] A first transmission mechanism movably arranged on the shell, the first transmission mechanism being provided with a trigger part and a collision part;

[0012] A detection sensor arranged on the shell;

[0013] When the first transmission mechanism moves forward / backward along the impact direction after the collision part generates an impact, the first transmission mechanism directly or indirectly triggers the detection sensor through the trigger part.

[0014] In a feasible implementation, the trigger part comprises a first state part and a second state part located on both sides of the first state part, and the first state part is protruded from or recessed in the second state part, and in the process of following the collision part to move forward / backward, the second state part directly or indirectly triggers the detection sensor.

[0015] In a feasible implementation, the first reset spring comprises a first spring and a second spring, the transmission rod is a rod-shaped member, has opposite first and second ends, and the first and second ends of the transmission rod are both protruded from the shell;

[0016] The collision part is fixedly arranged at the first end, and the collision part is protruded from or recessed in the surface of the shell;

[0017] The first spring is sleeved on the transmission rod, and the first spring is located between the collision part and the shell;

[0018] The second spring is sleeved on the transmission rod, and the second spring is located between the second end and the shell.

[0019] In a feasible implementation, the second end of the transmission rod is provided with a pin shaft configured to block the second spring.

[0020] In a feasible implementation, the first transmission mechanism further comprises a transmission rod and a first reset spring;

[0021] The transmission rod is arranged on the shell, and the collision part is connected to the end of the transmission rod;

[0022] The first reset spring is configured to reset to an initial position after the transmission rod follows the collision part to move forward / backward, and the initial position of the transmission rod is that the detection sensor corresponds to the first state part.

[0023] In an implementation, the detection end of the detection sensor corresponds to the trigger part, and in an initial state, the first state part of the trigger part corresponds to the detection sensor, and when the trigger part moves forward or backward following the contact part, the first state part switches to the second state part and presses the detection end of the detection sensor to trigger the detection sensor.

[0024] In an implementation, a second transmission mechanism is further included, and the moving direction of the second transmission mechanism has an included angle with the moving direction of the first transmission mechanism, and the trigger part triggers the detection sensor through the second transmission mechanism.

[0025] In an implementation, the second transmission mechanism includes an abutting block, the abutting block is slidingly arranged in the housing, the sliding direction of the abutting block is perpendicular to the moving direction of the trigger part, one end of the abutting block is in action with the trigger part, and the side end of the abutting block is in abutment with the detection sensor through a slope.

[0026] In an implementation, the abutting block, the corresponding end of the trigger part, and the detection end of the detection sensor are all provided with rolling members; and a second reset spring is arranged between the abutting block and the housing.

[0027] In an implementation, the second transmission mechanism includes a limiting column, the limiting column is fixedly arranged at the other end of the abutting block, the limiting column is slidingly arranged on the housing, the second reset spring is sleeved on the limiting column, one end of the second reset spring is in abutment with the abutting block, the other end of the second reset spring is in abutment with the housing, and the detection end of the detection sensor faces the abutting block.

[0028] In an implementation, the second transmission mechanism further includes a guide rail and a sliding block, one end of the guide rail is fixedly arranged on the housing, and the guide rail is parallel to the limiting column, the sliding block is fixedly arranged on the abutting block, and the sliding block is connected with the guide rail in a matching mode to enable the abutting block to move along the guide rail.

[0029] In an implementation, the trigger part and the transmission rod are in a split structure or in an integrated structure.

[0030] In an implementation, the trigger part includes a force transmission plate, the force transmission plate is configured in a wave peak structure with wing parts on both sides or a wave valley structure with wing parts on both sides.

[0031] In an 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.

[0032] In an implementation, the contact part includes a first contact part and a second contact part.

[0033] The first contact part is configured to detect before the fork takes the tray.

[0034] The second collision part is configured to detect after the pallet is forked;

[0035] The first collision part and the second collision part are in a split structure or an integrated structure.

[0036] In a second aspect, the embodiments of the present application provide a fork, which comprises a forked finger and the impact state monitoring device as described in the first aspect arranged on the forked finger to detect the stop of work after the fork generates an impact.

[0037] In a third aspect, the embodiments of the present application provide a stacker, which comprises at least one fork as described in the second aspect.

[0038] The embodiments of the present application provide an impact state monitoring device, which comprises a shell, a first transmission mechanism and a detection sensor. The first transmission mechanism is movably arranged on the shell. 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 configured to collide with and contact a pallet, and the trigger part is configured to trigger the detection sensor.

[0039] When the first transmission mechanism moves forward or backward along the impact direction thereof after the collision part impacts an abnormal pallet, the first transmission mechanism triggers the detection sensor directly or indirectly through the trigger part. It can be understood that the trigger part can trigger the detection sensor when the first transmission mechanism moves forward or backward along the impact direction thereof, and thus the state of the pallet before and after the pallet is forked can be detected, which saves the use of the detection sensor and reduces the installation space of the detection device relative to the prior art.

[0040] In the second aspect, the embodiments of the present application also provide a fork, which comprises a forked finger and the impact state monitoring device as described in the first aspect arranged on the forked finger to detect the stop of work after the fork generates an impact. Since the fork comprises the impact state monitoring device described in any of the above solutions, it has all the beneficial effects of the impact state monitoring device of any of the above solutions, which will not be described herein.

[0041] In the third aspect, the embodiments of the present application provide a stacker, which comprises at least one fork as described in the second aspect. Since the stacker comprises the fork described in any of the above solutions, it has all the beneficial effects of the fork of any of the above solutions, which will not be described herein. BRIEF DESCRIPTION OF DRAWINGS

[0042] The drawings described herein are used to provide an alternative understanding of the present disclosure, constitute a part of the present disclosure, and the illustrative embodiments of the present disclosure and the description thereof are configured to explain the present application and do not constitute an improper limitation on the present disclosure.

[0043] In the drawings:

[0044] Fig. 1 is a first structural schematic diagram of an impact state monitoring device according to an embodiment of the present application;

[0045] Fig. 2 is a structural schematic diagram of the impact state monitoring device in Fig. 1 without a shell;

[0046] Fig. 3 is a side view of an impact state monitoring device according to an embodiment of the present application;

[0047] Fig. 4 is a side view of an impact state monitoring device according to another embodiment of the present application;

[0048] Fig. 5 is a schematic diagram of the impact state monitoring device in Fig. 3 fixed on a fork;

[0049] Fig. 6 is an enlarged view of area A in Fig. 5.

[0050] Legend: 100 - shell; 200 - first transmission mechanism; 300 - detection sensor; 400 - second transmission mechanism; 500 - pin shaft; 600 - fork finger; 210 - collision part; 220 - trigger part; 230 - transmission rod; 240 - first reset spring; 410 - abutting block; 420 - limiting column; 430 - second reset spring; 440 - rolling element; 450 - sliding block; 460 - guide rail; 211 - first collision part; 212 - second collision part; 221 - first state part; 222 - second state part; 223 - force applying space; 241 - first spring; 242 - second spring. DETAILED DESCRIPTION

[0051] In order to make the person skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should fall within the protection scope of the present application.

[0052] In the description of the embodiments of the present application, the terms “first” and “second” are configured only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with “first” and “second” can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of “a plurality of” is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0053] In the present application, unless specifically defined otherwise and limited, the terms "mount", "connected", "connection", "fixed", and the like should be construed as broadly as possible, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] In the present application, unless specifically defined otherwise and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be indirectly in contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0055] In the logistics equipment, the fork is a component arranged at the end of the stacker or the forklift and configured to fork the goods.

[0056] In the pallet-level goods storage scheme, the goods are placed on the pallets (for example, the cross pallets), and the pallets are placed in the goods locations of the racks. The stacker or the forklift forks the pallets with the forks and places or takes the pallets away from the racks to complete the goods taking and placing.

[0057] However, the fork is prone to goods falling accidents in the process of forking the pallets to take and place the goods. For example, in the process of unloading or loading, after the pallets are forked by the forks of the stacker, the pallets are taken away from the racks. In the process of forking the pallets, if the pallets have problems such as damage, collapse or deviation, the racks have problems such as subsidence or misalignment, the forks are prone to fork on the pallets or the goods, and if the problems cannot be found in time, the pallets are prone to fall off from the racks, and the goods are prone to fall off from the pallets.

[0058] Similarly, when the forks complete the forking of the goods and take the goods away from the racks, if the goods interfere and collide with the racks due to shaking, there is a strip-shaped article on the pallets, and there is entanglement between the pallets and the forks or the racks, or relative movement occurs between the pallets and the forks due to the movement inertia, all of which can cause the pallets or the goods to fall from a high place.

[0059] In the technical solution, the forks are generally arranged in pairs, and the forks are bidirectional movement, that is, in order to ensure the comprehensiveness of safety detection, a detection device before fork taking and a detection device after fork taking need to be arranged for each of the two bidirectional forks, and if each detection device needs to correspond to a detection sensor, then 8 sensors are needed, which not only has certain requirements on the installation position, but also greatly increases the manufacturing cost. Now a front and rear combined type integrated detection device is needed, which shares a sensor to reduce the number of sensors used and reduce the manufacturing cost.

[0060] In order to solve the problem that in the prior art, multiple sensors need to be arranged because the goods are prone to falling accidents during the process of taking and placing goods by the forks, the embodiments of the present application provide a collision state monitoring device, a fork and a stacker, which will be described in detail below in combination with the drawings of the specification.

[0061] FIG. 1 is a first structural schematic diagram of the collision state monitoring device according to an embodiment of the present application; FIG. 2 is a structural schematic diagram of the collision state monitoring device in FIG. 1 without a shell; FIG. 3 is a side view of the collision state monitoring device according to an embodiment of the present application; and FIG. 4 is a side view of the collision state monitoring device according to another embodiment of the present application.

[0062] Referring to FIGS. 1 to 4, in a first aspect, the embodiments of the present application provide a collision state monitoring device, which comprises a shell 100, a first transmission mechanism 200 and a detection sensor 300.

[0063] The detection sensor 300 is arranged in the shell 100, and the detection sensor 300 can be a pressure sensor or a detection switch, which is a wired switch or a wireless self-generating switch.

[0064] In addition, the first transmission mechanism 200 is movably arranged on the shell 100. For example, the first transmission mechanism 200 can be horizontally arranged on the shell 100, and can move in the horizontal direction under the action of an external force.

[0065] The first transmission mechanism 200 is provided with a trigger portion 220 and a collision portion 210. The collision portion 210 can be located at the end of the first transmission mechanism 200 to facilitate contact and collision with the pallet. The trigger portion 220 can change the direction of force transmission to trigger the detection sensor 300. The trigger portion 220 can be arranged at the middle position of the first transmission mechanism 200 and located inside the shell 100. When the first transmission mechanism 200 moves horizontally in the collision direction, the trigger portion 220 moves horizontally under the driving of the first transmission mechanism 200.

[0066] When the first transmission mechanism 200 moves forward or backward along the impact direction (generally the telescopic direction of the forks) after the impact caused by the impact part 210, the first transmission mechanism 200 triggers the detection sensor 300 directly or indirectly 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 the impact direction, the state of the pallet in the two directions of forward pallet fork taking and backward pallet fork taking can be detected, which not only saves the use of the detection sensor 300, but also reduces the installation space of the impact state monitoring device compared with the prior art.

[0067] Referring to FIG. 3, in some examples, the impact state monitoring device further comprises a second transmission mechanism 400, the moving direction of the second transmission mechanism 400 has an angle with the moving direction of the first transmission mechanism 200, and the first transmission mechanism 200 drives the second transmission mechanism 400 to move during the movement of the first transmission mechanism 200, thereby triggering the detection sensor 300.

[0068] Specifically, one end of the second transmission mechanism 400 is in contact with the trigger part 220, and the detection end of the detection sensor 300 abuts against the second transmission mechanism 400. During the movement of the first transmission mechanism 200, the second transmission mechanism 400 is driven to move, thereby triggering the detection sensor 300. It can be understood that, by arranging 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.

[0069] For example, the second transmission mechanism 400 is arranged inside the housing 100 and arranged on the housing 100 in a vertical direction, 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.

[0070] The detection sensor 300 is fixedly arranged on the housing 100, and the detection end of the detection sensor 300 faces the second transmission mechanism 400. Specifically, the detection sensor 300 can be arranged between the second transmission mechanism 400 and the housing 100. For example, in some examples, the bottom of the second transmission mechanism 400 (the end of the second transmission mechanism 400 connected to the housing 100) has a certain space with the housing 100, and the detection sensor 300 can be arranged in the space, and 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 arranged 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 thereto. It should be noted that the detection end of the detection sensor 300 refers to the end of the detection sensor 300 configured to detect pressure.

[0071] In the impact state monitoring device, when the first transmission mechanism 200 is moved in the impact direction by an external force, the first transmission mechanism 200 drives the second transmission mechanism 400 to move through the trigger portion 220, and then the second transmission mechanism 400 applies pressure to the detection sensor 300, so that the abnormal state of the goods can be found in time according to the pressure change detected by the detection sensor 300, and the goods falling accident can be avoided.

[0072] It should be noted that the first transmission mechanism 200 is moved in the impact direction by an external force, which means that the first transmission mechanism 200 is moved in any one direction of the axial direction by the impact. For example, when the first transmission mechanism 200 is subjected to a pushing force, the first transmission mechanism 200 moves to the right, and when the first transmission mechanism 200 is subjected to a pulling force, the first transmission mechanism 200 moves to the left. That is, due to the existence of the trigger portion 220, no matter whether the first transmission mechanism 200 moves to the left or to the right in the axial direction, the first transmission mechanism 200 can make the second transmission mechanism 400 move in position and apply pressure to the detection sensor 300.

[0073] That is, the impact state monitoring device can detect the forces in two directions by setting only one detection sensor 300, which reduces the number of sensors used and reduces the manufacturing cost.

[0074] Referring to FIG. 4, in some other examples, the detection end of the detection sensor 300 can also directly abut at the trigger portion 220, and in the process of moving the first transmission mechanism 200, the trigger portion 220 can trigger the detection sensor 300.

[0075] Referring to FIGS. 1-4, in some examples, the first transmission mechanism 200 includes a transmission rod 230 and a first reset spring 240, the transmission rod 230 is arranged on the housing 100, and the collision portion 210 is connected to the end of the transmission rod 230.

[0076] The first reset spring 240 is configured to reset to the initial position after the transmission rod 230 moves forward / backward with the collision portion 210, and the initial position of the transmission rod 230 corresponds to the first state portion 221 of the detection sensor 300.

[0077] The first reset spring 240 includes a first spring 241 and a second spring 242. The transmission rod 230 is a rod-shaped member having opposite first and second ends. The transmission rod 230 is arranged in the housing 100, and the first and second ends of the transmission rod 230 extend out of the housing 100. The trigger portion 220 is arranged between the first and second ends and inside the housing 100. The collision portion 210 is fixedly arranged at the first end and protrudes from or is recessed from the surface of the housing 100 so as to be able to receive both a pushing force and a pulling force. The collision portion 210 is, for example, a plate-shaped member.

[0078] For example, after the impact state monitoring device is fixedly arranged on the forks, if the pallet is damaged, collapsed, offset, or the like, or the shelf is settled or misaligned, the forks will not be able to accurately extend into the pallet. During the process of extending the forks to pick up the goods, the collision portion 210 will contact the goods or the pallet and push the transmission rod 230 to move, and the transmission rod 230 can drive the second transmission mechanism 400 to move and press the detection sensor 300 during the movement, so that the detection sensor 300 finally detects the pressure.

[0079] When the forks complete the goods picking and take the goods away from the shelf, if the goods interfere with the shelf due to shaking, there are strip-shaped articles on the pallet, and the goods or the forks are entangled with the shelf, or the goods and the forks move relative to each other due to inertia, the goods will first contact the collision portion 210 protruding from or recessed from the surface of the housing 100, and then pull the transmission rod 230 to move, and the transmission rod 230 can drive the second transmission mechanism 400 to move and press the detection sensor 300 during the movement, so that the detection sensor 300 finally detects the pressure.

[0080] In addition, the first spring 241 is sleeved on the transmission rod 230 and located between the collision portion 210 and the housing 100, and the second spring 242 is sleeved on the transmission rod 230 and located between the second end and the housing 100. After the external force is removed, the transmission rod 230 can return to the original position under the action of the first spring 241 or the second spring 242. In addition, the second end of the transmission rod 230 is provided with a pin shaft 500 configured to block the second spring 242 to prevent it from falling off the transmission rod 230.

[0081] Referring to FIGS. 3 and 4, the trigger portion 220 includes a first state portion 221 and second state portions 222 located on both sides of the first state portion 221, and the first state portion 221 protrudes from or is recessed from the second state portions 222. During the process of moving forward / backward with the collision portion 210, the second state portions 222 directly or indirectly trigger the detection sensor 300.

[0082] Specifically, when the first state portion 221 is a convex portion, the second state portion 222 is a concave portion, and when the first state portion 221 is a concave portion, the second state portion 222 is a convex portion.

[0083] When the first state portion 221 is concave to the second state portion 222, the first state portion 221 and the second state portion 222 enclose a force application space 223, and an end of the second transmission mechanism 400 or a detection end of the detection sensor 300 is arranged in the force application space 223.

[0084] In some examples, when the first transmission mechanism 200 drives the trigger portion 220 to move, the second state portion 222 will press 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, in the process of following the front / rear movement of the collision portion 210, the second state portion 222 indirectly triggers the detection sensor 300.

[0085] In other examples, the detection end of the detection sensor 300 is opposite the trigger portion 220, and in the initial state, the detection end of the detection sensor 300 is opposite the first state portion 221 of the trigger portion 220. When the trigger portion 220 follows the front / rear movement of the collision portion 210, the first state portion 221 switches to the second state portion 222 corresponding to the detection sensor 300 and presses the detection end of the detection sensor 300, triggering the detection sensor 300. That is, in the process of following the front / rear movement of the collision portion 210, the second state portion 222 directly triggers the detection sensor 300.

[0086] Conversely, in some examples, the first state portion 221 protrudes from the second state portion 222. In the initial state, one end of the second transmission structure abuts against the first state portion 221, and at this time, the other end of the second transmission structure exerts a greater force on the detection sensor 300. After the first transmission structure moves horizontally under the action of an external force, the one end of the second transmission structure changes to abut against the first state portion 221, and at this time, the force exerted by the other end of the second transmission structure on the detection sensor 300 changes, thereby triggering the detection sensor 300.

[0087] In addition, the trigger portion 220 and the transmission rod 230 are in a split structure or in an integrated structure. For example, the first state portion 221 and the second state portion 222 can be machined on the transmission rod 230. Alternatively, a force transmission plate is fixedly arranged on the transmission rod 230, and the force transmission plate is configured as the trigger portion 220. For example, the force transmission plate is configured as a wave crest structure with wing portions on both sides or a wave trough structure with wing portions on both sides.

[0088] The force transmission plate is fixed on the side of the transmission rod 230, and the force transmission plate is provided with a bending area configured as the force applying space 223, the second transmission mechanism 400 abuts against the force applying space 223, the transmission rod 230 drives the second transmission mechanism 400 to move through the force transmission plate, and then exerts pressure on the detection sensor 300. For example, the bending area is enclosed by two inclined side walls and a bottom wall. It can be understood that the two inclined side walls facilitate exerting force on the second transmission mechanism 400, so as to force the second transmission mechanism 400 to move, and then exert pressure on the detection sensor 300 at the other end.

[0089] In some other examples, the first and second protrusions are arranged at intervals on the part of the transmission rod 230 located in the housing 100, the first and second protrusions are configured as the second state part 222, the part of the transmission rod 230 between the first and second protrusions is configured as the first state part 221, the space between the first and second protrusions is configured as the force applying space 223, the second transmission mechanism 400 abuts in the force applying space 223, the transmission rod 230 drives the second transmission mechanism 400 to move through the first and second protrusions, and then exerts pressure on the detection sensor 300.

[0090] For example, when the forks pick up the goods, if the forks cannot accurately pick up the holes in the pallet, the transmission rod 230 will be pushed by the goods and move away from the rack, at this time, the first protrusion will extrude the second transmission mechanism 400, forcing it to move downward and exert pressure on the detection sensor 300. In contrast, when the forks have picked up the pallet and are ready to take it away from the rack, if the goods move and push the transmission rod 230 towards the rack due to pulling or other reasons, at this time, the second protrusion on the transmission rod 230 will extrude the second transmission mechanism 400, forcing it to move downward and exert pressure on the detection sensor 300.

[0091] In addition, in order to facilitate the first and second protrusions to exert force on the second transmission mechanism 400, the first and second protrusions each have an inclined side wall.

[0092] Continuing to refer to FIGS. 1-3, the second transmission mechanism 400 includes an abutting block 410 and a limiting column 420, the abutting block 410 is slidingly arranged in the housing 100, a second return spring 430 is arranged between the abutting block 410 and the housing 100, the sliding direction of the abutting block 410 is perpendicular to the moving direction of the trigger part 220, one end of the abutting block 410 acts on the trigger part 220, and the side end of the abutting block 410 abuts against the detection sensor 300 through an inclined surface.

[0093] Exemplarily, one end of the abutting block 410 abuts in the force applying space 223 of the first transmission mechanism 200, the limiting column 420 is fixedly arranged at the other end of the abutting block 410, the limiting column 420 is slidingly arranged on the shell 100, the second return spring 430 is sleeved on the limiting column 420, one end of the second return spring 430 abuts on the abutting block 410, the other end of the second return spring 430 abuts on the shell 100, and the detection end of the detection sensor 300 faces the abutting block 410. It can be understood that, under the action of the second return spring 430, the abutting block 410 can abut in the force applying space 223. When the abutting block 410 is subjected to the action force applied by the first transmission mechanism 200, it will move against the elastic force of the second return spring 430 and apply an action force to the detection sensor 300 facing the abutting block 410. After the action force applied by the first transmission mechanism 200 on the abutting block 410 is removed, the abutting block 410 will move upward in position under the elastic force of the second return spring 430 and restore to the original state, at which time the action force between the abutting block 410 and the detection sensor 300 also restores to the initial size (0 or a certain fixed value).

[0094] In addition, in some examples, the abutting block 410 and the corresponding end of the trigger portion 220 and the detection end of the detection sensor 300 are all provided with a rolling piece 440. Exemplarily, the rolling piece 440 is rotationally arranged at the end of the abutting block 410 away from the limiting column 420 through a mounting shaft, and the outer edge of the rolling piece 440 is in contact with the first transmission mechanism 200. Specifically, the rolling piece 440 is located in the force applying space 223, and the outer edge thereof is in abutment with the trigger portion 220. It can be understood that, since the rolling piece 440 can rotate around the mounting shaft, when the first transmission mechanism 200 moves in the impact direction thereof, the first transmission mechanism 200 and the rolling piece 440 have smaller friction therebetween, which is conducive to the horizontal movement of the first transmission mechanism 200 and the movement of the abutting block 410 in the vertical direction.

[0095] Continuing to refer to FIG. 2, in some examples, the second transmission mechanism 400 further comprises a guide rail 460 and a sliding block 450, one end of the guide rail 460 is fixedly arranged on the shell 100, and the guide rail 460 is parallel to the limiting column 420, the sliding block 450 is fixedly arranged on the abutting block 410, and the sliding block 450 is connected with the guide rail 460 in cooperation to enable the abutting block 410 to move along the guide rail 460. Exemplarily, the limiting column 420 is vertically arranged on the shell 100, and the abutting block 410 moves in the vertical direction under the action of the limiting column 420. Correspondingly, the guide rail 460 is vertically arranged on the shell 100, and the abutting block 410 stably moves in the vertical direction under the cooperation of the sliding block 450 and the guide rail 460.

[0096] With reference to the first aspect, in some examples, the detection sensor 300 is horizontally arranged in the housing 100, the side of the abutting block 410 is provided with an abutting groove, the abutting groove has a side wall with an inclined angle, the detection end of the detection sensor 300 is located in the abutting groove, and the side wall selectively applies pressure to the detection end of the detection sensor 300. Specifically, when the abutting block 410 is positionally lowered due to the action force of the triggering part 220, the side wall of the abutting groove applies pressure to the detection end of the detection sensor 300, and vice versa, the side wall of the abutting groove does not apply pressure to the detection end of the detection sensor 300.

[0097] With reference to the first aspect, in some examples, the collision part 210 includes a first collision part 211 and a second collision part 212. The first collision part 211 is configured to detect before the forks pick up the pallet, and the second collision part 212 is configured to detect after the forks pick up the pallet. The first collision part 211 and the second collision part 212 are in a split structure or an integrated structure.

[0098] In some examples, the first collision part 211 and the second collision part 212 are in a split structure, and the first collision part 211 and the second collision part 212 are respectively arranged at the same side end of the transmission rod 230. In addition, the upper surface of the second collision part 212 should be protruded from the upper surface of the forks.

[0099] With reference to the first aspect, in some examples, the first collision part 211 and the second collision part 212 are in an integrated structure, the second collision part 212 is located on the first collision part 211, the first collision part 211 is fixed at the end of the transmission rod 230, and the second collision part 212 should be arranged to protrude from the upper surface of the forks.

[0100] FIG. 5 is a schematic view of the impact state monitoring device fixed on the forks in FIG. 3, and FIG. 6 is an enlarged view of area A in FIG. 5.

[0101] With reference to FIGS. 5 and 6, when the impact state monitoring device is fixed on the forks, the upper surface of the first collision part 211 is flush with or lower than the support surface of the forks, and the second collision part 212 protrudes from the support surface of the forks.

[0102] With reference to the first aspect, in some examples, the collision part 210 includes a first collision part 211 and a second collision part 212. The first collision part 211 is configured to detect before the forks pick up the pallet, and the second collision part 212 is configured to detect after the forks pick up the pallet. The first collision part 211 and the second collision part 212 are in a split structure or an integrated structure.

[0103] Since the forks include the impact state monitoring device described in any of the above solutions, the forks have all the beneficial effects of the impact state monitoring device described in any of the above solutions, which will not be repeated here.

[0104] In a third aspect, the embodiments of the present application provide a stacker, comprising at least one fork according to the second aspect. Since the stacker comprises the fork according to any of the above solutions, the stacker has all the beneficial effects of the fork according to any of the above solutions, which will not be repeated here.

[0105] It is easily understood that, based on the several embodiments provided by the present application, the skilled in the art can combine, split, recombine, etc. the embodiments of the present application to obtain other embodiments, which do not exceed the protection scope of the present application.

[0106] The above detailed description of the embodiments of the present application has optionally described the purposes, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above is only a specific implementation of the embodiments of the present application, and is not intended to limit the protection scope of the embodiments of the present application. Any modification, equivalent replacement, improvement, etc. made on the basis of the technical solutions of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application. Industrial applicability

[0107] In summary, the present disclosure provides a collision state monitoring device, a fork and a stacker, which solve the problem in the prior art that multiple sensors need to be provided to avoid the falling of goods during the process of picking up and placing goods by the fork.

Claims

1. A knock condition monitoring device characterized by comprising: The utility model relates to a kind of trigger mechanism, including: Shell (100); First transmission mechanism (200), movably arranged on the shell (100), the first transmission mechanism (200) is equipped with trigger part (220) and collision part (210); Detection sensor (300) is arranged on the shell (100); When the first transmission mechanism (200) moves forward / backward along its impact direction after the collision part (210) generates impact, the first transmission mechanism (200) will trigger the detection sensor (300) directly or indirectly through the trigger part (220).

2. The impact condition monitoring device of claim 1, wherein, The trigger part (220) includes first state part (221) and second state part (222) located on both sides of first state part (221), and the first state part (221) protrudes or is recessed from the second state part (222), in the process of following the collision part (210) moving forward / backward, the second state part (222) directly or indirectly triggers the detection sensor (300).

3. A knock condition monitoring apparatus according to claim 2, characterized by The first transmission mechanism (200) further includes transmission rod (230) and first reset spring (240); The transmission rod (230) is provided through the shell (100), and the collision part (210) is connected to the end of the transmission rod (230); The first reset spring (240) is configured to reset to the initial position after the transmission rod (230) follows the collision part (210) moving forward / backward, and the initial position of the transmission rod (230) corresponds to the first state part (221) of the detection sensor (300).

4. A knock condition monitoring apparatus according to claim 3, characterized by The first reset spring (240) includes first spring (241) and second spring (242), the transmission rod (230) is a rod-shaped member with opposite first end and second end, and the first end and the second end of the transmission rod (230) protrude from the shell (100); The collision part (210) is fixedly arranged on the first end, and the collision part (210) protrudes or is recessed from the surface of the shell (100); 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 shell (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 shell (100).

5. An impact condition monitoring device according to claim 4, characterised in that, The second end of the transmission rod (230) is provided with a pin shaft (500) configured to block the second spring (242).

6. An impact condition monitoring device according to any one of claims 2 to 5, characterised in that, The detection end of the detection sensor (300) corresponds to the trigger part (220), and 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) follows the forward / backward movement of the collision part, the first state part (221) is switched to the second state part (222) corresponding to the detection sensor (300), and the detection end of the detection sensor (300) is pressed, to trigger the detection sensor (300).

7. An impact condition monitoring device according to any one of claims 2 to 6, characterised in that, The second transmission mechanism (400) is arranged at an angle with the moving direction of the first transmission mechanism (200), and the trigger part (220) triggers the detection sensor (300) through the second transmission mechanism (400).

8. A knock condition monitoring apparatus according to claim 7, characterized by The second transmission mechanism (400) comprises an abutting block (410) which is slidingly arranged in the shell (100), the sliding direction of the abutting block (410) is perpendicular to the moving direction of the trigger part (220), one end of the abutting block (410) is in action with the trigger part (220), and the side end of the abutting block (410) is in abutment with the detection sensor (300) through a slope.

9. A knock condition monitoring apparatus according to claim 8, characterized by The corresponding end of the abutting block (410) and the trigger part (220) and the detection end of the detection sensor (300) are provided with rolling members (440); and the second reset spring (430) is arranged between the abutting block (410) and the shell (100).

10. A knock condition monitoring apparatus according to claim 9, characterized by The second transmission mechanism (400) comprises a limiting column (420) which is fixedly arranged at the other end of the abutting block (410), the limiting column (420) is slidingly arranged on the shell (100), the second reset spring (430) is sleeved on the limiting column (420), one end of the second reset spring (430) is in abutment with the abutting block (410), the other end of the second reset spring (430) is in abutment with the shell (100), and the detection end of the detection sensor (300) faces the abutting block (410).

11. The impact condition monitoring device of claim 10, wherein, The second transmission mechanism (400) further comprises a guide rail (460) and a sliding block (450), one end of the guide rail (460) is fixedly arranged on the shell (100), the guide rail (460) is parallel to the limiting column (420), the sliding block (450) is fixedly arranged on the abutting block (410), and the sliding block (450) is connected with the guide rail (460) in a matching mode, so that the abutting block (410) moves along the guide rail (460).

12. A knock condition monitoring apparatus according to any one of claims 3 to 5, characterized by The trigger part (220) and the transmission rod (230) are in a split structure or an integrated structure.

13. A knock condition monitoring apparatus according to any one of claims 1 to 12, characterized by The trigger part (220) comprises a force transmission plate which is configured as a wave crest structure with wing parts on both sides or a wave trough structure with wing parts on both sides.

14. A knock condition monitoring apparatus according to any one of claims 1 to 13, characterized by 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-power generation switch.

15. An impact condition monitoring device according to any one of claims 1 to 14, characterised in that, The collision part (210) comprises a first collision part (211) and a second collision part (212). The first collision part (211) is configured to detect before the fork takes the tray. The second collision part (212) is configured to detect after the fork takes the tray. The first collision part (211) and the second collision part (212) are in a split structure or an integrated structure.

16. A fork comprising: The device comprises at least one fork (600) and at least one impact state monitoring device arranged on the fork (600), and the impact state monitoring device is used to detect the stop of work after the fork generates impact.

17. A stacker characterized in that, The fork includes at least one as claimed in claim 16.

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