An elevator car platform

Abstract

The present application relates to a kind of hoist loading platform, belong to logistics conveying technical field, solve the current hoist in the process of loading and unloading goods, the technical problem that loading platform has the risk of falling.The hoist loading platform includes car frame, loading unit, guide component and locking assembly, car frame is installed in hoist, to move car frame by hoist drive;Loading unit is installed in car frame, to carry goods;Guide component is installed on car frame, and is connected with hoist;Locking assembly is installed in the bottom of car frame, for locking car frame.Therefore, the hoist loading platform is guided to car frame by guide component, reduce the swing of car frame, after car frame reaches corresponding floor, the position of locking assembly locks car frame, to block car frame fall, car frame is more stable, so that the hoist loading platform is more safe when use.

Description

Technical Field

[0001] This invention belongs to the field of logistics and transportation technology, and specifically relates to a hoist cargo platform. Background Technology

[0002] In the fields of industrial production and logistics transportation, in order to meet the demand for efficient transportation of goods between different floors, hoists are usually used to realize the vertical transportation of goods, thereby reducing manpower input and reducing labor intensity.

[0003] However, in the current conventional hoisting process, the hoisting platform needs to be frequently stopped and started during loading and unloading, and it needs to withstand various external forces brought about by loading and unloading of goods. There is a risk of the platform falling during loading and unloading. Once the platform falls, it will not only cause damage to the goods and economic losses, but may also pose a serious threat to the personal safety of the operators. Summary of the Invention

[0004] This invention provides a hoist loading platform to solve the technical problem that the loading platform of a hoist has the risk of falling during the loading and unloading of goods.

[0005] The present invention is achieved through the following technical solution: a hoist cargo platform, comprising a car frame, a cargo unit, a guide assembly, and a locking assembly, wherein the car frame is installed on the hoist so as to move the car frame by the hoist; the cargo unit is installed inside the car frame to carry goods; the guide assembly is installed on the car frame and connected to the hoist; and the locking assembly is installed at the bottom of the car frame for locking the car frame.

[0006] Optionally, the locking assembly includes a hydraulic cylinder and a locking pin. The hydraulic cylinder has a fixed end and a telescopic end that are disposed opposite to each other. The fixed end of the hydraulic cylinder is rotatably mounted on the car frame. The locking pin is rotatably mounted on the telescopic end of the hydraulic cylinder. A fixing hole adapted to the locking pin is provided for each floor. The hydraulic cylinder drives the locking pin to be inserted into the fixing hole to lock the car frame.

[0007] Optionally, the locking assembly further includes a guide sleeve, which is mounted on the car frame, and the locking pin is at least partially slidably mounted within the guide sleeve.

[0008] Optionally, it also includes two limit switches and a sensor plate, wherein the two limit switches are mounted on the car frame and located on one side of the locking pin; the sensor plate is mounted on the outer wall of the locking pin, and the locking pin drives the sensor plate to move between the two limit switches.

[0009] Optionally, the limit switch has a contact for abutting against the sensing element, the contact being wheel-shaped, and the sensing element having at least two opposing contact surfaces, the distance between the two contact surfaces gradually decreasing from the end closer to the cylinder to the end closer to the limit switch.

[0010] Optionally, the guide assembly includes a mounting bracket and a first roller, wherein the mounting bracket is mounted on the car frame; the mounting bracket has two opposing strip holes, the roller is installed in the strip holes, the roller corresponds one-to-one with the strip holes, the two strip holes have an included angle, the first roller slides along the strip holes to adjust the distance between the two rollers, and the axis of the first roller is perpendicular to the mounting bracket.

[0011] Optionally, the guide assembly further includes a fixed seat and a second roller, wherein the fixed seat is installed on the side of the mounting base away from the first roller; the fixed seat has two oppositely arranged grooves, the second roller is installed in the grooves, the axis of the second roller is parallel to the mounting base, the distance between the grooves and the mounting base gradually decreases from one end to the other end, a portion of the circumferential outer wall of the second roller extends out of the mounting base, and the second roller slides along the grooves to adjust the distance of the second roller extending out of the mounting base.

[0012] Optionally, it also includes a weighing component installed within the car frame, with the cargo unit mounted on the weighing component to weigh the goods on the cargo unit.

[0013] Optionally, it also includes a fall arrestor, which is installed on the car frame and connected to the hoist.

[0014] Optionally, the system also includes a grating sensor and a personnel identification system, wherein the grating sensor is installed on the car frame to detect the position of the goods; and the personnel identification system is installed inside the car frame to detect the position of personnel inside the car frame.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] The present invention provides a hoist cargo platform including a car frame, a cargo unit, a guide assembly, and a locking assembly. The car frame is installed on the hoist so that the hoist can drive the car frame to move. The cargo unit is installed inside the car frame to carry goods. The guide assembly is installed on the car frame and connected to the hoist. The locking assembly is installed at the bottom of the car frame for locking the car frame.

[0017] With the above structure, the hoist loading platform provided by this invention, when transporting goods, firstly, the hoist drives the car frame to the corresponding floor, and the locking component locks the car frame to prevent it from falling. The goods to be transported are then placed on the loading unit. Next, the locking component is released, and the hoist drives the car frame to move, thereby moving the goods on the loading unit. A guiding component guides the car frame to reduce its sway. When the car frame reaches the designated floor, the locking mechanism locks the car frame in place, and then the goods on the loading unit are unloaded. Therefore, this hoist loading platform guides the car frame through the guiding component, reducing its sway. After the car frame reaches the corresponding floor, the locking component locks its position, preventing it from falling. The car frame is more stable, making the hoist loading platform safer to use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of a lifting platform for cargo provided by the present invention;

[0020] Figure 2 This is another structural schematic diagram of a lifting platform for cargo provided by the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the guide component in an embodiment of the present invention;

[0022] Figure 4 This is another structural schematic diagram of the guide component in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the locking component in an embodiment of the present invention.

[0024] In the picture:

[0025] 1-Car frame, 2-Cargo unit, 3-Guide assembly, 31-Mounting base, 32-First roller, 33-Fixed base, 34-Second roller, 4-Locking assembly, 41-Hydraulic cylinder, 42-Locking pin, 43-Guide sleeve, 5-Limit switch, 6-Induction plate, 7-Weighing assembly, 8-Anti-fall assembly, 9-Light grating sensor, 10-Personnel identification system. Detailed Implementation

[0026] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0030] This invention provides a hoist loading platform, solving the technical problem that current hoist loading platforms pose a risk of falling during loading and unloading. The hoist loading platform includes a car frame 1, a loading unit 2, a guide assembly 3, and a locking assembly 4, wherein:

[0031] The car frame 1 is installed on the hoist, which is used to move the car frame 1, thereby moving the car frame 1 between different floors. The hoist has a cable and a drive motor. The car frame 1 is installed on the cable, and the drive motor drives the cable to move, thereby moving the car frame 1.

[0032] like Figures 1-2As shown, the cargo unit 2 is installed inside the car frame 1. The cargo unit 2 is used to carry goods. The car frame 1 moves, thereby moving the cargo unit 2 and the goods on the cargo unit 2 between different floors, thus transporting different goods to different floors.

[0033] like Figures 1-4 As shown, the guide assembly 3 is installed on the side of the car frame 1 and connected to the hoist. The hoist has a guide rail arranged along the moving direction of the car frame 1. The guide assembly 3 is connected to the guide rail and moves along the guide rail. The guide assembly 3 guides the car frame 1 and reduces the shaking of the car frame 1, thereby making the hoist more stable and safer to use during the movement of the car frame 1.

[0034] like Figure 1 , Figure 2 , Figure 5 As shown, the locking component 4 is installed at the bottom of the car frame 1 to lock the car frame 1, thereby preventing the car frame 1 from falling downward. The locking component 4 is located at the bottom of the car frame 1 and can support the entire car frame 1, thereby protecting the car frame 1 from falling. Multiple sets of locking components 4 can be provided, and multiple sets of locking components 4 together support the car frame 1.

[0035] With the above structure, the hoist loading platform provided by this invention, when transporting goods, firstly, the hoist drives the car frame 1 to the corresponding floor, and the locking component 4 locks the car frame 1 to prevent it from falling. The goods to be transported are then placed on the loading unit 2. Then, the locking component 4 is released, and the hoist drives the car frame 1 to move, thereby moving the goods on the loading unit 2. The guiding component 3 guides the car frame 1 to reduce its sway. When the car frame 1 reaches the designated floor, the locking mechanism locks its position, and then the goods on the loading unit 2 are unloaded. Therefore, this hoist loading platform guides the car frame 1 through the guiding component 3, reducing its sway. After the car frame 1 reaches the corresponding floor, the locking component 4 locks its position, preventing it from falling. The car frame 1 is more stable, making the hoist loading platform safer to use.

[0036] An optional implementation method of this embodiment is as follows: Figure 1 , Figure 2 , Figure 5As shown, the locking assembly 4 includes a hydraulic cylinder 41, which has a fixed end and a telescopic end arranged opposite to each other. The fixed end is rotatably mounted on the car frame 1, and the telescopic end extends toward the edge of the car frame 1. A locking pin 42 is rotatably mounted on the telescopic end of the hydraulic cylinder 41. The corresponding floor where the car can stop is provided with a fixing hole. The fixing hole can be set on the frame used to support the hoist or other parts that can support the car frame 1. The fixing hole is adapted to the locking pin 42. When the hoist moves the car frame 1 to the corresponding floor, the hydraulic cylinder 41 extends, driving the locking pin 42 to be inserted into the corresponding fixing hole, thereby fixing the car frame 1, stabilizing the car frame 1, reducing the shaking of the car frame 1, preventing the car frame 1 from falling, and making it safer to use. When the car frame 1 needs to be moved, the hydraulic cylinder 41 shortens, driving the locking pin 42 to move out of the fixing hole, and then the hoist moves the car frame 1 again.

[0037] An optional implementation method of this embodiment is as follows: Figure 1 , Figure 2 , Figure 5 As shown, in order to move the locking pin 42 in a specified direction, the hoist platform also includes a guide sleeve 43. The guide sleeve 43 is mounted on the car frame 1. The locking pin is at least partially slidably mounted in the guide sleeve 43. The guide sleeve 43 is used to guide the locking pin 42 so that the locking pin 42 always moves along the axial direction of the guide sleeve 43, reducing the offset of the locking pin 42 and allowing the locking pin 42 to be better inserted into the fixing hole.

[0038] An optional implementation method of this embodiment is as follows: Figure 5 As shown, to better determine the moving position of the locking pin 42, the hoist's cargo platform also includes limit switches 5 and sensing plates 6. Two limit switches 5 are provided, both mounted on the car frame 1 and located on one side of the locking pin 42. The limit switches 5 are electrically connected to the hydraulic cylinder 41 and are used to control the extension and retraction of the hydraulic cylinder 41. The sensing plate 6 is mounted on the outer wall of the locking pin 42. The locking pin 42 drives the sensing plate 6 to move between the two limit switches 5. When the car frame 1 moves to the designated position, the hydraulic cylinder 41 extends, causing the locking pin 42 to move towards the fixing hole. The locking shaft drives the sensing plate 6 to move. When the sensing plate 6 contacts the limit switch 5 closest to the fixing hole, the hydraulic cylinder 41 stops extending. When the car frame 1 needs to move, the hydraulic cylinder 41 retracts, causing the locking pin 42 to move away from the fixing hole. The locking shaft drives the sensing plate 6 to move. When the sensing plate 6 contacts the limit switch 5 away from the fixing hole, the hydraulic cylinder 41 stops retracting.

[0039] An optional implementation method of this embodiment is as follows: Figure 5As shown, the limit switch 5 has a contact element for abutting against the sensing plate 6. The contact element is wheel-shaped. The sensing plate 6 has at least two opposing contact surfaces. The distance between the two contact surfaces gradually decreases from the end closer to the cylinder 41 to the end closer to the limit switch 5. In this way, when the contact element abuts against the contact surface, the roller can roll along the contact surface, thereby reducing the friction between the roller and the contact surface. The gradual decrease in the distance between the two contact surfaces from the end closer to the cylinder 41 to the end closer to the limit switch 5 allows the roller to roll along the contact surface, thereby reducing the damage to the sensing plate 6 caused by the relative movement of the roller and the sensing plate 6. The roller moves between the two sensing plates 6. When the roller abuts against the sensing plate 6, the limit switch 5 is opened and closed, and the cylinder 41 stops moving.

[0040] An optional implementation method of this embodiment is as follows: Figures 1-4 As shown, the guide assembly 3 includes a mounting base 31 and a first roller 32. The mounting base 31 is mounted on the car frame 1. The mounting base 31 has two oppositely arranged strip holes. The rollers are installed in the strip holes, and the rollers correspond one-to-one with the strip holes. There is an included angle between the two strip holes. The hoist has guide rails arranged along the moving direction of the car frame 1. The two guide rails are located between the two first rollers 32. The first rollers 32 slide along the strip holes to adjust the distance between the two rollers, so that the two rollers are clamped on the guide rails, thereby reducing the friction between the guide rails and the guide assembly 3. The axial direction of the first rollers 32 is perpendicular to the mounting base 31.

[0041] An optional implementation method of this embodiment is as follows: Figures 1-4 As shown, the guide assembly 3 also includes a fixed seat 33 and a second roller 34. The fixed seat 33 is installed on the side of the mounting base 31 away from the first roller 32. The fixed seat 33 has two oppositely arranged grooves. The second roller 34 is installed in the grooves. The axis of the second roller 34 is parallel to the mounting base 31. The distance between the grooves and the mounting base 31 gradually decreases from one end to the other. Part of the circumferential outer wall of the second roller 34 extends out of the mounting base 31. The second roller 34 slides along the grooves to adjust the distance of the second roller 34 extending out of the mounting base 31, so that the second roller 34 abuts against the guide rail, thereby reducing the direct contact between the guide rail and the car frame 1, so as to better guide the car frame 1 through the second roller 34.

[0042] An optional implementation method of this embodiment is as follows: Figure 2As shown, for enhanced safety, the hoist's cargo platform also includes a weighing component 7, which is installed inside the car frame 1. The cargo unit 2 is installed on the weighing component 7 to weigh the cargo on the cargo unit 2. The car frame 1 is equipped with an alarm device, such as a warning light or a buzzer. When the weight of the cargo on the cargo unit 2 obtained by the weighing component 7 exceeds a set threshold, the alarm device will alert that the cargo is overweight, thereby preventing the car frame 1 from falling due to overweight cargo, making it safer to use.

[0043] An optional implementation method of this embodiment is as follows: Figure 1 , Figure 2 As shown, it also includes a grating sensor 9 and a personnel identification system 10. The grating sensor 9 is installed on the car frame 1 and is used to open and close the doors of the car frame 1 on the corresponding floor. It is set on the side of the car frame 1 near the doors and is used to detect whether the position of the goods exceeds the car frame 1 to prevent the goods from being caught when the doors close, making it safer to use. The personnel identification system 10 is installed inside the car frame 1 to detect the position of the personnel inside the car frame 1. The personnel identification system 10 can collect image information inside the car frame 1 through cameras or other means, so as to determine whether there are personnel inside the car frame 1 based on the image information. When the personnel loading and unloading goods are inside the car frame 1, the alarm device will sound an alarm to indicate that there are people inside the car frame 1, and the doors will always be open. The doors will only close when all the personnel loading and unloading goods have left the car frame 1, and the hoist will transport the goods on the cargo unit 2.

[0044] In summary, the hoist loading platform provided by this invention, when transporting goods, firstly, the hoist moves the car frame 1 to the corresponding floor, the hydraulic cylinder 41 extends, and drives the locking pin 42 to be inserted into the corresponding fixing hole along the axial direction of the guide sleeve 43. When the sensing plate 6 contacts the limit switch 5 near the fixing hole, the hydraulic cylinder 41 stops extending. The guide sleeve 43 guides the locking pin 42, ensuring that the locking pin 42 always moves along the axial direction of the guide sleeve 43, reducing the offset of the locking pin 42, and allowing the locking pin 42 to be better inserted into the fixing hole, thereby fixing the car frame 1, stabilizing the car frame 1, reducing the shaking of the car frame 1, and preventing the car frame 1 from falling. The goods to be transported are placed on the loading unit 2, the weighing component 7 weighs the goods on the loading unit 2, and the grating sensor 9 detects whether the position of the goods exceeds the limit. The elevator car frame 1 is extended to prevent cargo from being caught when the doors are closed. The personnel identification system 10 detects the position of personnel inside the elevator car frame 1. When the conditions are met simultaneously—that the cargo is not overweight, the grating sensor 9 detects that the cargo does not exceed the elevator car frame 1, and the personnel identification system 10 detects that there are no personnel inside the elevator car frame 1—the hydraulic cylinder 41 shortens, causing the locking pin 42 to move away from the fixing hole. The locking pin axially moves the sensing plate 6. When the sensing plate 6 contacts the limit switch 5 away from the fixing hole, the hydraulic cylinder 41 stops shortening. The hoist drives the elevator car frame 1 to move, thereby moving the cargo on the cargo unit 2. The first roller 32 and the second roller 34 slide along the guide rail to guide the elevator car frame 1, thereby reducing the shaking of the elevator car frame 1. When the elevator car frame 1 reaches the designated floor, the locking mechanism locks the position of the elevator car frame 1, and then the cargo on the cargo unit 2 is unloaded. Therefore, the hoist loading platform guides the car frame 1 through the guide component 3, reducing the swaying of the car frame 1. After the car frame 1 reaches the corresponding floor, the locking component 4 locks the position of the car frame 1, thereby preventing the car frame 1 from falling. The car frame 1 is more stable, making the hoist loading platform safer to use.

[0045] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope described in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A hoist cargo platform, characterized in that, include: A car frame is installed on a hoist so that the car frame can be moved by the hoist. A cargo unit, installed within the car frame, is used to carry goods; A guide assembly is installed on the car frame and connected to the hoist; The guide assembly includes: a mounting base mounted on the car frame; and a first roller. The mounting base has two opposing slots, and the roller is installed in each slot, with each slot corresponding to one of the rollers. An angle is formed between the two slots. The first roller slides along the slots to adjust the distance between the two rollers. The axial direction of the first roller is perpendicular to the mounting base. A locking component, installed at the bottom of the car frame, is used to lock the car frame; The locking assembly includes: a hydraulic cylinder having a fixed end and a telescopic end disposed opposite to each other, the fixed end of the hydraulic cylinder being rotatably mounted on the car frame; and a locking pin being rotatably mounted on the telescopic end of the hydraulic cylinder, with a fixing hole adapted to the locking pin provided for each floor, the hydraulic cylinder driving the locking pin to be inserted into the fixing hole to lock the car frame. Two limit switches are installed on the car frame and located on one side of the locking pin. A sensing element is mounted on the outer wall of the locking pin, and the locking pin drives the sensing element to move between the two limit switches. The limit switch has a contact for abutting against the sensing element, the contact is wheel-shaped, and the sensing element has at least two opposing contact surfaces, the distance between the two contact surfaces gradually decreasing from the end closer to the cylinder to the end closer to the limit switch.

2. The hoist cargo platform according to claim 1, characterized in that, The locking component also includes: A guide sleeve is installed on the car frame, and the locking pin is at least partially slidably installed inside the guide sleeve.

3. The hoist cargo platform according to claim 1, characterized in that, The guiding component also includes: A mounting base is installed on the side of the mounting base away from the first roller; The second roller has two opposing grooves on the fixed base. The second roller is installed in the groove, and the axis of the second roller is parallel to the mounting base. The distance between the groove and the mounting base gradually decreases from one end to the other. A portion of the circumferential outer wall of the second roller extends out of the mounting base. The second roller slides along the groove to adjust the distance of the second roller extending out of the mounting base.

4. A hoist cargo platform according to claim 1, characterized in that, Also includes: A weighing assembly is installed inside the car frame, and the cargo unit is installed on the weighing assembly to weigh the goods on the cargo unit.

5. A hoist cargo platform according to claim 1, characterized in that, Also includes: The fall arrestor is installed on the car frame and connected to the hoist.

6. A hoist cargo platform according to claim 1, characterized in that, Also includes: A grating sensor is installed on the car frame to detect the position of the goods; A personnel identification system is installed inside the car frame to detect the position of personnel inside the car frame.

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