Unmanned forklift stacking anti-toppling alarm device
By installing compensation and width adjustment mechanisms in the pit of the unmanned forklift, combined with gravity sensors and a gear and rack system, the pressure distribution of the goods can be detected in real time, solving the problem of goods tipping over during the stacking process of the unmanned forklift and achieving safe and stable goods stacking.
Patent Information
- Application Number
- CN202422955170.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Existing unmanned forklifts cannot respond in time to cargo shifting or tilting during the stacking process, leading to the risk of tipping over, which may result in cargo damage and safety threats.
The installation mechanism, which is located within the installation pit, includes a compensation mechanism and a width adjustment mechanism. It utilizes a gravity sensor and a motor-driven rack and pinion system to detect the pressure distribution of the cargo in real time. The control components issue an alarm and stop the forklift operation. The compensation mechanism provides support to prevent tipping.
It effectively prevents goods from tipping over and being damaged, improves the safety and stability of the stacking process, and ensures that even if goods slightly shift or tilt during stacking, it can be corrected in time, reducing equipment failure and personnel safety risks.
Smart Images
Figure CN223534830U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of stacking auxiliary safety devices for unmanned forklifts, specifically to an anti-tipping alarm device for stacking unmanned forklifts. Background Technology
[0002] Unmanned forklifts are forklifts equipped with electromagnetic or optical automatic guidance devices that can travel along a prescribed guidance path and have safety protection and transfer functions. In the current fields of industrial automation and logistics warehousing, unmanned forklifts are increasingly widely used as efficient and precise handling tools.
[0003] In logistics warehousing, goods need to be stacked sequentially before being packaged and shipped. Existing unmanned forklifts rely mainly on precise navigation systems and sensors to ensure operational accuracy when placing and stacking goods. However, these systems often only provide location information and basic obstacle detection. They often cannot respond in time to changes during the stacking process, such as goods shifting or tilting. If the stacking operation continues under these circumstances, the risk of goods tipping over remains. Such tipping can not only damage the goods but also cause equipment failure and even pose a safety threat to the operators.
[0004] Therefore, a stacking anti-tipping alarm device for unmanned forklifts is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide an alarm device for preventing unmanned forklift stacking from tipping over, in order to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0007] An unmanned forklift stacking anti-tipping alarm device includes an installation pit and an installation mechanism. The installation pit is located on the ground, and the installation mechanism is installed inside the installation pit. The top of the installation mechanism is equipped with a compensation mechanism to provide support when goods tip over. A placement platform for placing goods is connected to the compensation mechanism. The installation mechanism is provided with a width adjustment mechanism for detecting whether the weight of the goods is evenly placed and for adjusting the width according to the size of the goods. The width adjustment mechanism is located below the placement platform, and a control component for control and alarm activation is located on one side of the installation pit.
[0008] Furthermore, the installation mechanism includes a base plate, and an adjusting sleeve is rotatably provided at the bottom of the base plate. The adjusting sleeve is arranged in a rectangular array, and a threaded bracket is provided in the internal thread of the adjusting sleeve. The base of the threaded bracket has a threaded hole, and the threaded bracket is connected to an external stud in the installation pit.
[0009] Furthermore, the compensation mechanism includes a fixed bracket, which is fixedly installed on the top of the base plate. The fixed bracket is arranged in a rectangular array. A strip groove is opened in the fixed bracket, and an electric push rod is fixedly installed in the strip groove. A fixed block is fixedly installed on the telescopic end of the electric push rod. A ball joint is fixedly connected to one side wall of the fixed block, and the other movable end of the ball joint is fixedly connected to one side of the placement platform.
[0010] Furthermore, the width-adjusting mechanism includes a motor, which is fixedly installed at the bottom of the base plate. A gear is rotatably mounted on the base plate. The output end of the motor passes through one side wall of the base plate and is fixedly connected to the shaft of the gear. A rectangular groove is formed on the base plate, and the rectangular groove is arranged in a cross array. A sliding rod is fixedly installed in the rectangular groove, and a sliding block is slidably mounted on the sliding rod. A mounting support rod is fixedly mounted on the top of the sliding block. A gravity sensor is fixedly mounted on each mounting support rod. A mounting bracket is fixedly mounted on one side wall of the mounting support rod. There are four mounting brackets, which are arranged in pairs. The two sets of mounting brackets are arranged vertically, and the mounting brackets on opposite sides of the two sets are arranged in a mirror symmetrical manner. A rack is fixedly mounted on the mounting bracket, and the rack meshes with the gear.
[0011] Furthermore, the width-adjusting mechanism also includes a limiting frame, which is fixedly installed on the top of the base plate. There are four limiting frames, with two limiting frames forming a group. One group of limiting frames is higher than the other group of limiting frames. An auxiliary sliding groove frame is fixedly installed on one side wall of the mounting frame, and the auxiliary sliding groove frame is slidably arranged with the limiting frame.
[0012] Furthermore, the surface of the platform is provided with anti-slip threaded grooves.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. This utility model uses a motor to drive a gear to rotate, causing the meshing rack to move. The rack and mounting bracket pull the mounting support rod, causing the sliding block to slide along the sliding rod. This allows the gravity sensor at the top of the mounting support rod to be flexibly adjusted according to the width of the goods, ensuring that the gravity sensor can always accurately cover the bottom of the goods. This provides accurate pressure distribution data, allowing for the determination of goods offset and tilt. This enables timely alarms and corrective measures to avoid the risk of unstable or collapsed goods. By setting a threshold for the gravity sensor, when the pressure on one side exceeds the threshold, the control module sends an electrical signal to the control component to issue an alarm and stop the forklift's release operation, effectively preventing goods from tipping over and being damaged. Attached Figure Description
[0015] Figure 1This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a side sectional view of the present invention;
[0017] Figure 3 This is a top-section structural diagram of the present invention;
[0018] Reference numerals: 1. Installation pit; 2. Control components; 3. Placement platform; 4. Width adjustment mechanism; 401. Motor; 402. Sliding rod; 403. Sliding block; 404. Gravity sensor; 405. Installation support rod; 406. Limiting frame; 407. Mounting frame; 408. Rectangular groove; 409. Gear; 4010. Rack; 4011. Auxiliary sliding groove frame; 5. Compensation mechanism; 501. Electric push rod; 502. Fixed bracket; 503. Strip groove; 504. Fixed block; 505. Ball joint; 6. Installation mechanism; 601. Adjusting sleeve; 602. Threaded bracket; 603. Base plate. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0021] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0022] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0023] like Figures 1 to 3 As shown, an unmanned forklift stacking anti-tipping alarm device includes a mounting pit 1 and a mounting mechanism 6. The mounting pit 1 is located on the ground, and the mounting mechanism 6 is installed within the mounting pit 1. Compensation mechanisms 5 are installed around the top of the mounting mechanism 6 to provide support in case of tipping. A placement platform 3 for placing goods is connected to the compensation mechanism 5. The mounting mechanism 6 is equipped with a width-adjusting mechanism 4 for detecting whether the weight of the goods is evenly distributed and for adjusting the width according to the size of the goods. The width-adjusting mechanism 4 is located below the placement platform 3. A control component 2 for control and alarm activation is located on one side of the mounting pit 1. Specifically, the device is first installed in the mounting pit 1 located on the ground using the mounting mechanism 6. When the control component 2 receives a delivery instruction, it transmits the information of the goods to be delivered to the receiver on the forklift via radio signal. Simultaneously, the device adjusts the sensors on the width-adjusting mechanism 4 according to the length and width of the goods provided by the control component 2, allowing the device to flexibly adjust according to the width of the goods, ensuring the sensors... The system can always accurately cover the bottom of the goods, thus providing accurate pressure distribution data. At this time, the forklift will insert the goods onto the placement platform 3 along the guide line on the ground. When the goods are placed on the placement platform 3, if the pressure sensor on one side of the width adjustment mechanism 4 exceeds the threshold, a radio signal will be sent to the control component 2 to sound an alarm and stop the forklift's release operation, which can effectively prevent the goods from tipping over and being damaged. When the control component 2 receives a large pressure on one side of the width adjustment mechanism 4 and determines that it is prone to tipping over, the compensation mechanism 5 will intervene to compensate for the sensor on the side of the width adjustment mechanism 4 that exceeds the threshold more, so as to avoid tipping over. The control component 2 will sound an alarm and send an electrical signal to stop the forklift operation. After the operator makes a judgment, the alarm will be lifted and the operation can resume. Through the support of the placement platform 3 by the compensation mechanism 5, even if the goods are slightly shifted or tilted when the forklift is stacking goods, the compensation mechanism 5 can absorb such shifts to a certain extent, while ensuring that the width adjustment mechanism 4 can accurately capture changes in pressure distribution. After a batch of goods is stacked on the placement platform 3, the operator will pack it and the forklift will carry the entire stack of goods away for loading.
[0024] like Figure 2 , Figure 3 As shown, the installation mechanism 6 includes a base plate 603, and an adjusting sleeve 601 is rotatably mounted on the bottom of the base plate 603. The adjusting sleeves 601 are arranged in a rectangular array, and a threaded bracket 602 is threaded inside the adjusting sleeve 601. The base of the threaded bracket 602 has a threaded hole, and the threaded bracket 602 is connected to an external stud in the installation pit 1. Specifically, the threaded bracket 602 is first fixed in the installation pit 1 located underground through the external stud in the threaded hole. Then, the threaded bracket 602 is rotated to make it rise and fall along the threaded bracket 602. By cooperating with a leveling device during installation, the base plate 603 is kept in a horizontal state to avoid the device itself tilting, which could cause the goods to tip over when stacked.
[0025] like Figure 1 , Figure 2 As shown, the compensation mechanism 5 includes a fixed bracket 502, which is fixedly installed on the top of the base plate 603. The fixed bracket 502 is arranged in a rectangular array, and a strip groove 503 is formed inside the fixed bracket 502. An electric push rod 501 is fixedly installed in the strip groove 503. A fixed block 504 is fixedly installed on the telescopic end of the electric push rod 501. A ball joint 505 is fixedly connected to one side wall of the fixed block 504, and the other movable end of the ball joint 505 is fixedly connected to one side of the placement platform 3. Specifically, when goods need to be stacked on the placement platform 3, the electric push rod 501 synchronously drives the placement platform 3 to descend and engage with the sensors on the width adjustment mechanism 4. When the goods on the placement platform 3 shift or tilt during stacking, posing a risk of tipping over, the control component 2 sends a signal to the electric push rod 501, causing the electric push rod 501 to lift the fixing block 504 and the ball joint 505. This provides support and compensation for the side that may tip over, improving the safety of the device. When not in use, the placement platform 3 is lifted to the top to prevent prolonged contact and pressure between the placement platform 3 and the sensors on the width-adjustable mechanism 4, which could affect the lifespan of the sensors. The ball joint 505 also provides a degree of flexibility, allowing it to absorb slight shifts or tilts of the goods to some extent, while ensuring that the sensors can accurately detect changes in pressure distribution.
[0026] like Figure 2 , Figure 3As shown, the width-adjusting mechanism 4 includes a motor 401, which is fixedly installed on the bottom of the base plate 603. A gear 409 is rotatably mounted on the base plate 603. The output end of the motor 401 passes through one side wall of the base plate 603 and is fixedly connected to the shaft of the gear 409. A rectangular groove 408 is provided on the base plate 603, and the rectangular grooves 408 are arranged in a cross array. A sliding rod 402 is fixedly installed in the rectangular groove 408. A sliding block 403 is slidably arranged on the sliding rod 402. A mounting support rod 405 is fixedly installed on the top of the sliding block 403. A gravity sensor 404 is fixedly installed on each mounting support rod 405. A mounting bracket 407 is fixedly installed on one side wall of the mounting support rod 405. There are four mounting brackets 407, which are arranged in pairs. The two sets of mounting brackets 407 are arranged vertically, and the mounting brackets 407 on opposite sides of the two sets are arranged in a mirror symmetrical manner. A rack 4010 is fixedly installed on the 07, and the rack 4010 is meshed with the gear 409. Specifically, the motor 401 drives the gear 409 to rotate, causing the meshing rack 4010 to move. The rack 4010 and the mounting bracket 407 pull the mounting support rod 405, causing the sliding block 403 to slide along the sliding rod 402. This allows the gravity sensor 404 at the top of the mounting support rod 405 to be flexibly adjusted according to the width of the goods. This ensures that the gravity sensor 404 can always accurately cover the bottom of the goods, thereby providing accurate pressure distribution data. It can determine the offset and tilt of the goods, and thus issue an alarm and take corrective measures in time to avoid the risk of unstable stacking or collapse of goods. By setting a threshold for the gravity sensor 404, when the pressure on one side exceeds the threshold, the control module sends an electrical signal to the control component 2 to issue an alarm and stop the forklift release operation, which can effectively prevent the goods from tipping over and being damaged.
[0027] like Figure 2 , Figure 3 As shown, the width-adjusting mechanism 4 also includes a limiting frame 406, which is fixedly installed on the top of the base plate 603. There are four limiting frames 406, with two limiting frames 406 forming a group. One group of limiting frames 406 is higher than the other group of limiting frames 406. An auxiliary sliding groove frame 4011 is fixedly installed on one side wall of the mounting frame 407. The auxiliary sliding groove frame 4011 is slidably arranged with the limiting frames 406. Specifically, the cooperation between the auxiliary sliding groove frame 4011 and the limiting frames 406 improves the stability of the mounting frame 407 during movement, and the staggered arrangement of the mounting frames 407 prevents mutual interference between the mounting frames 407 during operation.
[0028] like Figure 1As shown, the surface of the placement platform 3 is provided with anti-slip threaded grooves; specifically, this increases friction and improves the stability of the goods placement.
[0029] In summary: First, the device is installed in the mounting pit 1 located on the ground using the mounting mechanism 6. When the control component 2 receives a delivery instruction, it transmits the information of the goods to be delivered to the receiver on the forklift via a radio signal. Simultaneously, the device adjusts the sensors on the width-adjusting mechanism 4 according to the length and width of the goods provided by the control component 2, allowing the device to flexibly adjust according to the width of the goods. This ensures that the sensors can always accurately cover the bottom of the goods, thus providing accurate pressure distribution data. At this time, the forklift inserts the goods onto the placement platform 3 along the guide lines on the ground. When the goods are placed on the placement platform 3, if the pressure sensor on one side of the width-adjusting mechanism 4 exceeds the threshold, a radio signal is emitted to trigger the control component 2 to issue an alarm and stop the forklift. The placement mechanism effectively prevents goods from tipping over and being damaged. When the control component 2 receives a large pressure on one side of the width adjustment mechanism 4 and determines that it is prone to tipping, the compensation mechanism 5 intervenes to compensate the sensor on the side of the width adjustment mechanism 4 where the sensor exceeds the threshold by a large margin, thus preventing tipping. The control component 2 also alarms and sends an electrical signal to stop the forklift operation. The alarm is deactivated after the operator makes a judgment and the operation can resume. The compensation mechanism 5 supports the placement platform 3, so that even if the goods shift or tilt slightly when the forklift is stacking them, the compensation mechanism 5 can absorb the shift to a certain extent. At the same time, it ensures that the width adjustment mechanism 4 can accurately capture changes in pressure distribution. After a batch of goods is stacked on the placement platform 3, the operator packs it and the forklift moves the entire stack of goods to the truck.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A stacking anti-tipping alarm device for unmanned forklifts, characterized in that, The installation includes an installation pit (1) and an installation mechanism (6). The installation pit (1) is located on the ground, and the installation mechanism (6) is installed inside the installation pit (1). The top of the installation mechanism (6) is equipped with a compensation mechanism (5) for providing support when the goods are tipped over. The compensation mechanism (5) is connected to a placement platform (3) for placing the goods. The installation mechanism (6) is equipped with a width adjustment mechanism (4) for detecting whether the weight of the goods is evenly placed and for adjusting the size of the goods accordingly. The width adjustment mechanism (4) is located below the placement platform (3), and a control component (2) for controlling and issuing alarms is located on one side of the installation pit (1).
2. The unmanned forklift stacking anti-tipping alarm device according to claim 1, characterized in that, The installation mechanism (6) includes a base plate (603), and an adjusting sleeve (601) is rotatably provided at the bottom of the base plate (603). The adjusting sleeves (601) are arranged in a rectangular array. A threaded bracket (602) is provided in the inner thread of the adjusting sleeve (601). The base of the threaded bracket (602) is provided with a threaded hole. The threaded bracket (602) is connected to an external stud in the installation pit (1).
3. The unmanned forklift stacking anti-tipping alarm device according to claim 2, characterized in that, The compensation mechanism (5) includes a fixed bracket (502), which is fixedly installed on the top of the base plate (603). The fixed bracket (502) is arranged in a rectangular array. A strip groove (503) is opened in the fixed bracket (502). An electric push rod (501) is fixedly installed in the strip groove (503). A fixed block (504) is fixedly installed on the telescopic end of the electric push rod (501). A ball joint (505) is fixedly connected to one side wall of the fixed block (504). The other movable end of the ball joint (505) is fixedly connected to one side of the placement platform (3).
4. The unmanned forklift stacking anti-tipping alarm device according to claim 2, characterized in that, The width-adjusting mechanism (4) includes a motor (401), which is fixedly installed on the bottom of the base plate (603). A gear (409) is rotatably mounted on the base plate (603). The output end of the motor (401) passes through one side wall of the base plate (603) and is fixedly connected to the shaft of the gear (409). A rectangular groove (408) is provided on the base plate (603), which is arranged in a cross array. A sliding rod (402) is fixedly installed in the rectangular groove (408), and a sliding block (403) is slidably arranged on the sliding rod (402). A mounting rod (405) is fixedly installed on the top of the sliding block (403). A gravity sensor (404) is fixedly installed on each mounting rod (405). A mounting bracket (407) is fixedly installed on one side wall of the mounting rod (405). There are four mounting brackets (407), which are arranged in pairs. The two sets of mounting brackets (407) are arranged vertically and horizontally. The two sets of mounting brackets (407) on opposite sides are arranged in a mirror symmetrical manner. A rack (4010) is fixedly installed on the mounting bracket (407). The rack (4010) is meshed with the gear (409).
5. The unmanned forklift stacking anti-tipping alarm device according to claim 4, characterized in that, The width-adjusting mechanism (4) further includes a limiting frame (406), which is fixedly installed on the top of the base plate (603). There are four limiting frames (406), with two limiting frames (406) forming a group. One group of limiting frames (406) is higher than the other group of limiting frames (406). An auxiliary sliding groove frame (4011) is fixedly installed on one side wall of the mounting frame (407). The auxiliary sliding groove frame (4011) is slidably arranged with the limiting frame (406).
6. The unmanned forklift stacking anti-tipping alarm device according to claim 1, characterized in that, The surface of the placement platform (3) is provided with anti-slip threaded grooves.