A blocking device based on the anti-derailment mechanism of the pallet trolley

Abstract

This utility model relates to the field of auxiliary equipment technology for hoists, and more particularly to a blocking device based on a pallet trolley to prevent derailment. It includes: a fixing mechanism, a blocking plate, a pin, a driving component, and a noise reduction mechanism. The blocking plate is mounted on the fixing mechanism via the pin, and is rotatably connected to the driving component. The driving component is rotatably connected to the fixing mechanism, and the driving end of the driving component is rotatably connected to the blocking plate. The noise reduction mechanism includes: an oil-free bushing, a baffle, and a first fastener. The oil-free bushing is located between the blocking plate and the pin, and the baffle is located on the side of the blocking plate away from the fixing mechanism. This utility model, by providing an oil-free bushing between the blocking plate and the pin, effectively lubricates the blocking plate due to the solid lubricant contained within it, ensuring that no noise is generated due to hard friction caused by non-rotation. This reduces noise after blocking. Furthermore, since the oil-free bushing is maintenance-free, it reduces the frequency of pin maintenance.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology for hoists, and in particular to a blocking device based on a pallet trolley to prevent derailment. Background Technology

[0002] Pallet trolley level-changing elevators are automated devices used to vertically transport palletized goods between different floors, and are widely used in smart warehousing and material handling industries. When pallet trolleys are running in the level-changing elevator, the anti-derailment design is a core element to ensure the safe, stable, and efficient operation of the entire elevator system. Therefore, we urgently need a blocking device based on pallet trolley anti-derailment.

[0003] However, existing blocking devices for preventing pallet trolleys from derailing have the following problems:

[0004] The hard friction caused by the pin not rotating after the impact plate contacts the shaft results in significant noise after each contact between the mechanical barrier and the impact block, reducing the environmental friendliness, reliability, and safety of the entire blocking device.

[0005] The main reason why the pin does not rotate and generates hard friction after the impact plate contacts the shaft is that the pin itself does not have rotational characteristics. In addition, the traditional pin is welded to the adjacent rocker arm baffle. Furthermore, when the pallet trolley floor-changing elevator car reaches each floor, the mechanical barrier will hardly impact the baffle plate. Afterward, the baffle plate will swing under the action of the spring, and the noise generated will greatly affect the workshop environment. At the same time, the original mechanical spring will also fatigue and be damaged, and replacement is relatively troublesome. Utility Model Content

[0006] In response to the shortcomings of the existing production technology, the applicant provides a blocking device based on a pallet trolley to prevent derailment. By improving the structure of the blocking device, the noise after blocking can be reduced, and the number of maintenance times for the pins can also be reduced.

[0007] The technical solution adopted in this utility model is as follows:

[0008] A blocking device for preventing derailment of a pallet trolley includes: a fixing mechanism, a blocking plate, a pin, a driving component, and a noise reduction mechanism. The fixing mechanism is mounted on a hoist via a hoist frame beam. The blocking plate is mounted on the fixing mechanism via the pin and is rotatably connected to the driving component. The driving component is rotatably connected to the fixing mechanism, and its driving end is rotatably connected to the blocking plate. The driving component drives the blocking plate to rotate around the axial direction of the pin, allowing the blocking plate to switch between a raised state and a tilted state. The noise reduction mechanism is installed between the blocking plate and the pin and includes: an oil-free bushing, a baffle, and a first fastener. The oil-free bushing is located between the blocking plate and the pin, and the baffle is located on the side of the blocking plate away from the fixing mechanism. The first fastener passes through the baffle and is connected to the oil-free bushing.

[0009] Therefore, by providing an oil-free bushing between the blocking plate and the pin, the oil-free bushing contains a solid lubricant that effectively lubricates the blocking plate, ensuring that no noise is generated due to hard friction caused by non-rotation. This reduces noise after blocking. At the same time, since the oil-free bushing is maintenance-free, the number of times the pin needs maintenance can be reduced. In addition, the blocking plate and the first fastener protect the blocking plate, ensuring that the blocking plate will not break free from the pin and fall off. Meanwhile, the fastening installation method of the first fastener facilitates the installation and disassembly of the entire blocking device.

[0010] As a further improvement to the above technical solution, it also includes: a first sensing element, which is mounted to the fixing mechanism via a first mounting plate, and a gap exists between the first mounting plate and the fixing mechanism. Therefore, the gap between the first mounting plate and the fixing mechanism facilitates the blocking plate reaching the sensing area of ​​the first sensing element.

[0011] As a further improvement to the above technical solution, it also includes a second sensing element, which is mounted to the fixing mechanism via a second mounting plate, and a gap exists between the second mounting plate and the fixing mechanism. Therefore, the gap between the second mounting plate and the fixing mechanism facilitates the blocking plate reaching the sensing area of ​​the second sensing element.

[0012] As a further improvement to the above technical solution, it also includes a controller, wherein the driving component, the first sensing component, and the second sensing component are all connected to the controller. Thus, when the first sensing component detects the barrier, the barrier cannot continue to rise; when the second sensing component detects the barrier, the barrier cannot continue to tilt. This sensor-based blocking method ensures that the barrier will not come into contact with other objects and cause an impact. Compared to existing mechanical rigid blocking methods that cause impacts, this method avoids impacts, thereby further preventing noise generation.

[0013] As a further improvement to the above technical solution: the fixing mechanism includes a fixing plate, a clamp, and a second fastener. The clamp is U-shaped, and a receiving space is formed between the fixing plate and the clamp. The hoist frame beam passes through this receiving space. The second fastener is located on the side of the fixing plate away from the hoist frame beam and is connected to the clamp. The first mounting plate is connected to the fixing plate, and the second mounting plate is connected to the fixing plate. Therefore, the installation method using the second fastener facilitates the installation and disassembly of the fixing mechanism and the hoist frame beam. Furthermore, when installing and disassembling the fixing mechanism and the hoist frame beam, it is only necessary to rotate to loosen or tighten the second fastener, and then remove the fixing plate from the clamp or insert the fixing plate into the clamp. This simplifies the installation and disassembly process between the fixing mechanism and the hoist frame beam, making the operation steps simpler.

[0014] As a further improvement to the above technical solution, the noise reduction mechanism further includes a first retaining ring and a second retaining ring, both located between the oil-free bushing and the baffle, and the second retaining ring is positioned between the first retaining ring and the baffle. Thus, the first and second retaining rings prevent direct contact between the baffle and the oil-free bushing, further reducing the frictional resistance between them.

[0015] As a further improvement to the above technical solution, it also includes: a first limiting pin and a first fixing pin. The first limiting pin is connected to the fixing plate, passes through the driving member, and is rotatably connected to the driving member. The first fixing pin is located on the side of the driving member away from the fixing plate and is inserted into the first limiting pin. Therefore, the first fixing pin enables the installation and disassembly of the driving end of the driving member and the first limiting pin, making the installation and disassembly process relatively convenient.

[0016] As a further improvement to the above technical solution, it also includes: a second limiting pin and a second fixing pin. The second limiting pin is connected to the fixing plate and passes through the driving end of the driving component, and is connected to the driving end of the driving component. The second fixing pin is located on the side of the driving component away from the fixing plate and is inserted into the second limiting pin. Therefore, the installation and disassembly of the driving component and the second limiting pin can be achieved through the second fixing pin, and the installation and disassembly process is relatively convenient.

[0017] As a further improvement to the above technical solution: the first mounting plate includes a first mounting part, a second mounting part, and a third mounting part. The first mounting part is connected to the fixed plate, the second mounting part is connected to the first mounting part, and the third mounting part is connected to the second mounting part. The first sensing element is mounted on the third mounting part. Thus, the second mounting part allows for a gap between the third mounting part and the fixed plate, facilitating the blocking plate's access to the sensing area of ​​the first sensing element.

[0018] As a further improvement to the above technical solution: the second mounting plate includes a fourth mounting part, a fifth mounting part, and a sixth mounting part. The fourth mounting part is connected to the fixed plate, the fifth mounting part is connected to the fourth mounting part, and the sixth mounting part is connected to the fifth mounting part. The second sensing element is mounted on the sixth mounting part. Thus, the fifth mounting part allows for a gap between the sixth mounting part and the fixed plate, facilitating the blocking plate's access to the sensing area of ​​the second sensing element.

[0019] The beneficial effects of this utility model are as follows:

[0020] By installing an oil-free bushing between the blocking plate and the pin, the oil-free bushing contains a solid lubricant that effectively lubricates the blocking plate, ensuring that no noise is generated due to hard friction caused by non-rotation. This reduces noise after blocking. At the same time, since the oil-free bushing is maintenance-free, the number of times the pin needs maintenance can be reduced. In addition, the blocking plate and the first fastener protect the blocking plate, ensuring that the blocking plate will not break free from the pin and fall off. Meanwhile, the fastening installation method of the first fastener facilitates the installation and disassembly of the entire blocking device.

[0021] This utility model also has the following advantages:

[0022] 1. After the first sensing element of this utility model senses the barrier plate, the barrier plate cannot continue to rise. When the second sensing element senses the barrier plate, the barrier plate cannot continue to tilt. This sensing-based blocking method can ensure that the barrier plate will not come into contact with other objects and cause an impact. Compared with the existing mechanical rigid blocking method that causes an impact, this method can avoid impact and thus further avoid the generation of noise.

[0023] 2. This utility model, through the installation method of fastening with a second fastener, facilitates the installation and disassembly of the fixing mechanism and the hoist frame beam. Furthermore, when installing and disassembling the fixing mechanism and the hoist frame beam, it is only necessary to rotate to loosen or tighten the second fastener, and then remove the fixing plate from the clamp or insert the fixing plate into the clamp. In this way, the installation and disassembly process between the fixing mechanism and the hoist frame beam is relatively simple, simplifying the operation steps for installation and disassembly between the fixing mechanism and the hoist frame beam.

[0024] 3. This utility model can avoid direct contact between the baffle and the oil-free bushing by using the first and second retaining rings, thereby further reducing the frictional resistance between the baffle and the oil-free bushing. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the blocking device based on the anti-derailment of the pallet trolley of this utility model with the blocking plate raised.

[0026] Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of a local structure at point A;

[0027] Figure 3 For the present utility model Figure 1 Enlarged schematic diagram of the local structure at point B;

[0028] Figure 4 This is a top view of the barrier plate of the barrier device based on the anti-derailment device of the pallet trolley of this utility model in the raised state.

[0029] Figure 5 This is a front view of the blocking device based on the anti-derailment of a pallet trolley according to this utility model, with the blocking plate raised.

[0030] Figure 6 For the present utility model Figure 5 Schematic diagram of the cross-sectional structure of the middle CC section;

[0031] Figure 7 For the present utility model Figure 6 Enlarged schematic diagram of the local structure at point D;

[0032] Figure 8This is a schematic diagram of the structure of the blocking device based on the anti-derailment of the pallet trolley of this utility model, showing the blocking plate in a tilted state.

[0033] Figure 9 For the present utility model Figure 8 Enlarged schematic diagram of the local structure at point E;

[0034] Figure 10 For the present utility model Figure 8 Enlarged schematic diagram of the local structure at point F;

[0035] Figure 11 This is a top view of the tilted state of the blocking plate of the blocking device based on the anti-derailment of the pallet trolley according to this utility model.

[0036] Figure 12 This is a front view of the tilted state of the blocking plate of the blocking device based on the anti-derailment of the pallet trolley of this utility model.

[0037] Figure 13 This is a control block diagram of the anti-derailment blocking device based on a pallet trolley according to this utility model.

[0038] Among them: 1. Fixed mechanism;

[0039] 101. Fixing plate; 102. Clamp; 103. Second fastener;

[0040] 2. Hoist frame crossbeam;

[0041] 3. Baffle plate;

[0042] 4. Pin;

[0043] 5. Drive components;

[0044] 6. Noise reduction mechanism;

[0045] 601. Oil-free bushing; 602. Baffle; 603. First fastener; 604. First retaining ring; 605. Second retaining ring;

[0046] 7. First sensing element;

[0047] 701. First mounting plate; 702. First mounting section; 703. Second mounting section; 704. Third mounting section;

[0048] 8. Second sensing element;

[0049] 801. Second mounting plate; 802. Fourth mounting section; 803. Fifth mounting section; 804. Sixth mounting section;

[0050] 9. Controller;

[0051] 10. First limit pin;

[0052] 11. First fixing pin;

[0053] 12. Second limit pin;

[0054] 13. Second fixing pin. Detailed Implementation

[0055] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0056] like Figures 1 to 13 The diagram shows the preferred embodiment of this utility model. This embodiment's anti-derailment blocking device for a pallet trolley includes: a fixing mechanism 1, a blocking plate 3, a pin 4, a driving component 5, and a noise reduction mechanism 6. The fixing mechanism 1 is mounted on a hoist (not shown) via a hoist frame beam 2. The blocking plate 3 is mounted on the fixing mechanism 1 via the pin 4, and the blocking plate 3 is rotatably connected to the driving component 5. The driving component 5 is rotatably connected to the fixing mechanism 1, and its driving end is rotatably connected to the blocking plate 3. The driving component 5 is used to drive the blocking plate 3 around the axial direction of the pin 4. The direction is rotated so that the baffle plate 3 can switch back and forth between the raised state (i.e., the blocking state or the working state) and the tilted state (i.e., the non-blocking state or the passage state of the pallet trolley). The noise reduction mechanism 6 is installed between the baffle plate 3 and the pin 4. The noise reduction mechanism 6 includes: an oil-free bushing 601, a baffle 602 and a first fastener 603. The oil-free bushing 601 is located between the baffle plate 3 and the pin 4. The baffle 602 is located on the side of the baffle plate 3 away from the fixing mechanism 1. The first fastener 603 passes through the baffle 602 and is connected to the oil-free bushing 601. Therefore, by providing an oil-free bushing 601 between the blocking plate 3 and the pin 4, the oil-free bushing 601 contains a solid lubricant, which can effectively lubricate the blocking plate 3 and ensure that no noise is generated due to hard friction caused by non-rotation. This reduces the noise after blocking. At the same time, since the oil-free bushing 601 is maintenance-free, the number of maintenance times for the pin 4 can be reduced. In addition, the blocking plate 602 and the first fastener 603 can protect the blocking plate 3 to ensure that the blocking plate 3 will not break free from the pin 4 and fall off the pin 4. At the same time, the fastening installation method of the first fastener 603 facilitates the installation and disassembly of the entire blocking device.

[0057] Specifically, the baffle plate 3 and the oil-free bushing 601 are in a fixed fit, while the oil-free bushing 601 is in a loose fit.

[0058] For example, the drive component 5 is an electric push rod, and the first fastener 603 is a bolt.

[0059] In this embodiment, the system further includes: a first sensor 7, a second sensor 8, and a controller 9. The first sensor 7 is mounted to the fixing mechanism 1 via a first mounting plate 701, and there is a gap between the first mounting plate 701 and the fixing mechanism 1. The second sensor 8 is mounted to the fixing mechanism 1 via a second mounting plate 801, and there is a gap between the second mounting plate 801 and the fixing mechanism 1. The driving component 5, the first sensor 7, and the second sensor 8 are all connected to the controller 9. The first mounting plate 701 includes: a first mounting part 702, a second mounting part 703, and a third mounting part 704. Mounting part 702 is connected to fixing plate 101, second mounting part 703 is connected to first mounting part 702, third mounting part 704 is connected to second mounting part 703, and first sensing element 7 is mounted on third mounting part 704; second mounting plate 801 includes: fourth mounting part 802, fifth mounting part 803 and sixth mounting part 804, fourth mounting part 802 is connected to fixing plate 101, fifth mounting part 803 is connected to fourth mounting part 802, sixth mounting part 804 is connected to fifth mounting part 803, and second sensing element 8 is mounted on sixth mounting part 804. Therefore, the gap between the first mounting plate 701 and the fixing mechanism 1 facilitates the blocking plate 3 to reach the sensing area of ​​the first sensing element 7; the gap between the second mounting plate 801 and the fixing mechanism 1 facilitates the blocking plate 3 to reach the sensing area of ​​the second sensing element 8; when the first sensing element 7 senses the blocking plate 3, the blocking plate 3 cannot continue to rise; when the second sensing element 8 senses the blocking plate 3, the blocking plate 3 cannot continue to tilt. This sensing-type blocking method ensures that the blocking plate 3 will not come into contact with other objects and cause an impact. Compared with the existing mechanical rigid blocking method that causes an impact, this method can avoid impact and further avoid noise generation; the second mounting part 703 allows a gap between the third mounting part 704 and the fixing plate 101, thus facilitating the blocking plate 3 to reach the sensing area of ​​the first sensing element 7; the fifth mounting part 803 allows a gap between the sixth mounting part 804 and the fixing plate 101, thus facilitating the blocking plate 3 to reach the sensing area of ​​the second sensing element 8.

[0060] Specifically, when the first sensor 7 or the second sensor 8 senses the baffle plate 3, the first sensor 7 or the second sensor 8 sends this sensing signal to the controller 9. The controller 9 analyzes and processes the sensing signal and transmits a stop signal to the drive unit 5. When the drive unit 5 receives the stop signal, the drive unit 5 stops running and no longer drives the baffle plate 3 to continue moving. Thus, the baffle plate 3 stops moving, and ultimately, the baffle plate 3 switches back and forth between the raised state and the tilted state.

[0061] For example, the first sensing element 7 uses a magnetic induction switch, and the second sensing element 8 uses a magnetic induction switch.

[0062] In this embodiment, the fixing mechanism 1 includes: a fixing plate 101, a hoop 102, and a second fastener 103. The hoop 102 is in a "U" shape. An accommodation space is formed between the fixing plate 101 and the hoop 102. The crossbeam 2 of the hoist frame passes through this accommodation space. The second fastener 103 is located on the side of the fixing plate 101 away from the crossbeam 2 of the hoist frame, and the second fastener 103 is connected to the hoop 102; the first mounting plate 701 is connected to the fixing plate 101, and the second mounting plate 801 is connected to the fixing plate 101. Thus, through the fastening installation method of the second fastener 103, it is convenient for the installation and disassembly between the fixing mechanism 1 and the crossbeam 2 of the hoist frame. In addition, when installing and disassembling between the fixing mechanism 1 and the crossbeam 2 of the hoist frame, only need to rotate and loosen or tighten the second fastener 103, and then take the fixing plate 101 off the hoop 102 or insert the fixing plate 101 into the hoop 102. In this way, the installation and disassembly process between the fixing mechanism 1 and the crossbeam 2 of the hoist frame is relatively simple, simplifying the operation steps of the installation and disassembly between the fixing mechanism 1 and the crossbeam 2 of the hoist frame.

[0063] In other words, the installation and disassembly process between the fixing mechanism 1 and the crossbeam 2 of the hoist frame is as follows: move the fixing plate 101 and the hoop 102 from both sides of the crossbeam 2 of the hoist frame towards (close for installation) or away from (away for disassembly) the central position of the crossbeam 2 of the hoist frame. After the hoop 102 is inserted into the fixing plate 101 (insert for installation) or the hoop 102 is separated from the fixing plate 101 (separate for disassembly), then rotate and tighten (tighten for installation) or loosen (loosen for disassembly) the second fastener 103 to complete the installation and disassembly process between the fixing mechanism 1 and the crossbeam 2 of the hoist frame, rather than nesting from the end of the crossbeam 2 of the hoist frame onto the crossbeam 2 of the hoist frame. By operating like this, the operation steps of the installation and disassembly between the fixing mechanism 1 and the crossbeam 2 of the hoist frame can be simplified;

[0064] The installation process sequence is: first approach, then insert, and finally tighten;

[0065] The disassembly process sequence is: first loosen, then separate, and finally move away.

[0066] Specifically, the crossbeam 2 of the hoist frame passing through the accommodation space between the fixing plate 101 and the hoop 102 means that the four side walls of the lifting frame crossbeam 2 are respectively in contact with the side wall of the fixing plate 101 and the three inner side walls of the hoop 102.

[0067] For example, the second fastener 103 uses a bolt.

[0068] In this embodiment, the noise reduction mechanism 6 further includes a first retaining ring 604 and a second retaining ring 605. Both the first retaining ring 604 and the second retaining ring 605 are located between the oil-free bushing 601 and the baffle 602, and the second retaining ring 605 is located between the first retaining ring 604 and the baffle 602. Therefore, the first retaining ring 604 and the second retaining ring 605 prevent direct contact between the baffle 602 and the oil-free bushing 601, thereby further reducing the frictional resistance between the baffle 602 and the oil-free bushing 601.

[0069] In this embodiment, the device further includes a first limiting pin 10 and a first fixing pin 11. The first limiting pin 10 is connected to the fixing plate 101, passes through the driving member 5, and is rotatably connected to the driving member 5. The first fixing pin 11 is located on the side of the driving member 5 away from the fixing plate 101 and is inserted into the first limiting pin 10. Thus, the first fixing pin 11 enables the installation and removal of the driving end of the driving member 5 from the first limiting pin 10, and the installation and removal process is relatively convenient.

[0070] In this embodiment, the device further includes a second limiting pin 12 and a second fixing pin 13. The second limiting pin 12 is connected to the fixing plate 101 and passes through the driving end of the driving member 5, and is connected to the driving end of the driving member 5. The second fixing pin 13 is located on the side of the driving member 5 away from the fixing plate 101 and is inserted into the second limiting pin 12. Thus, the installation and disassembly between the driving member 5 and the second limiting pin 12 can be realized through the second fixing pin 13, and the installation and disassembly process is relatively convenient.

[0071] The operation process of this utility model pallet trolley is as follows: First, in the initial state, such as... Figure 8 , Figure 11 , Figure 12 As shown, with the baffle 3 tilted, the pallet trolley can operate normally; finally, as Figure 1 , Figure 4 , Figure 5 As shown, when the pallet trolley needs to load or unload goods, it is necessary to control the pallet trolley to stop running and start the drive unit 5 to determine that the baffle plate 3 rotates around the axis of the pin 4. After the first sensor 7 senses the baffle plate 3, the controller 9 controls the drive unit 5 to stop running so that the baffle plate 3 is in the raised state. The raised baffle plate 3 can block the operation of the pallet trolley, that is, the pallet trolley stays stationary and can load and unload goods normally.

[0072] In summary, this utility model provides an oil-free bushing 601 between the blocking plate 3 and the pin 4. Since the oil-free bushing 601 contains a solid lubricant, it effectively lubricates the blocking plate 3, ensuring that no noise is generated due to hard friction caused by non-rotation. This reduces noise after blocking. Furthermore, because the oil-free bushing 601 is maintenance-free, it reduces the frequency of maintenance on the pin 4. In addition, the blocking plate 602 and the first fastener 603 protect the blocking plate 3, ensuring that it does not detach from the pin 4. The fastening method of the first fastener 603 facilitates the installation and disassembly of the entire blocking device.

[0073] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A blocking device for preventing derailment of a pallet trolley, characterized in that, Comprising: A fixing mechanism (1), which is installed on the hoist through a hoist frame cross beam (2); A baffle plate (3), a pin shaft (4) and a driving member (5). The baffle plate (3) is installed on the fixing mechanism (1) through the pin shaft (4), and the baffle plate (3) is rotatably connected to the driving member (5). The driving member (5) is rotatably connected to the fixing mechanism (1), and the driving end of the driving member (5) is rotatably connected to the baffle plate (3). The driving member (5) is used to drive the baffle plate (3) to rotate around the axial direction of the pin shaft (4) so that the baffle plate (3) switches back and forth between a raised state and a tilted state; A noise reduction mechanism (6), which is installed between the baffle plate (3) and the pin shaft (4). The noise reduction mechanism (6) includes: An oil-free bushing (601), a baffle (602) and a first fastener (603). The oil-free bushing (601) is located between the baffle plate (3) and the pin shaft (4), the baffle (602) is located on the side of the baffle plate (3) away from the fixing mechanism (1), and the first fastener (603) penetrates through the baffle (602) and is connected to the oil-free bushing (601).

2. The blocking device based on the anti-derailment mechanism of the pallet trolley as described in claim 1, characterized in that: It further includes: A first sensing member (7), which is installed on the fixing mechanism (1) through a first mounting plate (701), and there is a gap between the first mounting plate (701) and the fixing mechanism (1).

3. The blocking device based on the pallet trolley for preventing derailment as described in claim 2, characterized in that: It further includes: A second sensing member (8), which is installed on the fixing mechanism (1) through a second mounting plate (801), and there is a gap between the second mounting plate (801) and the fixing mechanism (1).

4. The blocking device based on the pallet trolley for preventing derailment as described in claim 3, characterized in that: It further includes: A controller (9). The driving member (5), the first sensing member (7) and the second sensing member (8) are all connected to the controller (9).

5. The blocking device based on the pallet trolley for preventing derailment as described in claim 3, characterized in that: The fixing mechanism (1) includes: A fixing plate (101), a hoop (102) and a second fastener (103). The hoop (102) is in a "U" shape. An accommodation space is formed between the fixing plate (101) and the hoop (102). The hoist frame cross beam (2) penetrates through this accommodation space. The second fastener (103) is located on the side of the fixing plate (101) away from the hoist frame cross beam (2), and the second fastener (103) is connected to the hoop (102); The first mounting plate (701) is connected to the fixing plate (101), and the second mounting plate (801) is connected to the fixing plate (101).

6. The blocking device based on the anti-derailment of the pallet trolley as described in claim 1, characterized in that: The noise reduction mechanism (6) further includes: A first retaining ring (604) and a second retaining ring (605). The first retaining ring (604) and the second retaining ring (605) are both located between the oil-free bushing (601) and the baffle (602), and the second retaining ring (605) is between the first retaining ring (604) and the baffle (602).

7. The blocking device based on the pallet trolley for preventing derailment as described in claim 5, characterized in that: It further includes: The first limiting pin (10) and the first fixing pin (11) are connected to the fixing plate (101). The first limiting pin (10) passes through the driving member (5) and is rotatably connected to the driving member (5). The first fixing pin (11) is located on the side of the driving member (5) away from the fixing plate (101) and is inserted into the first limiting pin (10).

8. The blocking device based on the pallet trolley for preventing derailment as described in claim 5, characterized in that: Also includes: The second limiting pin (12) and the second fixing pin (13) are connected to the fixing plate (101). The second limiting pin (12) passes through the driving end of the driving member (5) and is connected to the driving end of the driving member (5). The second fixing pin (13) is located on the side of the driving member (5) away from the fixing plate (101) and is inserted into the second limiting pin (12).

9. The blocking device based on the pallet trolley for preventing derailment as described in claim 5, characterized in that: The first mounting plate (701) includes: The system comprises a first mounting part (702), a second mounting part (703), and a third mounting part (704). The first mounting part (702) is connected to the fixed plate (101), the second mounting part (703) is connected to the first mounting part (702), and the third mounting part (704) is connected to the second mounting part (703). The first sensing element (7) is mounted on the third mounting part (704).

10. The blocking device based on the anti-derailment of the pallet trolley as described in claim 5, characterized in that: The second mounting plate (801) includes: The fourth mounting part (802), the fifth mounting part (803), and the sixth mounting part (804) are provided. The fourth mounting part (802) is connected to the fixing plate (101), the fifth mounting part (803) is connected to the fourth mounting part (802), and the sixth mounting part (804) is connected to the fifth mounting part (803). The second sensing element (8) is mounted on the sixth mounting part (804).

Images