Automatic loading and unloading freight elevator and control method

Abstract

An automatic loading and unloading freight elevator and control method, comprising a jump mechanism for installation in a shaft, a loading and unloading mechanism for installation in an elevator lobby, a transport mechanism for transporting goods, and a control mechanism for controlling each mechanism; the control mechanism is respectively connected to the elevator door of each floor, the jump mechanism, the transport mechanism, and the loading and unloading mechanism; the jump mechanism comprises a car, a first drive assembly for pulling the car to jump in the shaft; the transport mechanism comprises a transport platform movably arranged in the car and a second drive assembly for driving the transport platform in and out of the car; the loading and unloading mechanism comprises a plurality of telescopic pile groups installed in the elevator lobby of each floor and used to unload goods from the transport platform or load goods onto the transport platform. The automatic loading and unloading freight elevator can save the loading volume and loading weight of the freight elevator while realizing automatic loading and unloading of goods, improve the transportation efficiency of the freight elevator, and save labor costs.

Description

Technical Field

[0001] The invention belongs to the field of elevator manufacturing, and in particular relates to an automatic loading and unloading freight elevator and a control method. Background Art

[0002] With the development of science and technology, the level of construction technology has been continuously improved. There are many high-rise buildings in cities, and elevators have become an indispensable equipment for supporting high-rise buildings. Elevators include escalators and box elevators. Box elevators are widely used in high-rise buildings because they are set in vertical shafts and occupy a small area. The car can carry both passengers and goods, and the jump speed is fast.

[0003] In order to optimize the performance of box elevators in loading goods, freight elevators were developed. However, existing freight elevators require manual loading and unloading of goods, or manual control of mechanical loading and unloading of goods, making it difficult to improve the transportation efficiency of freight elevators. Summary of the invention

[0004] The purpose of the present invention is to transport goods in / out through a transport mechanism installed in the car, and then load / unload the transport mechanism in cooperation with a loading and unloading mechanism installed in the elevator lobby of each floor, and the transport mechanism, loading and unloading mechanism and jump-floor mechanism are all controlled by a control mechanism. Compared with manual loading and unloading of goods or manual control of mechanical loading and unloading of goods, the work efficiency is greatly improved, so that the overall transportation efficiency of the freight elevator is improved.

[0005] The present invention is achieved through the following technical solutions:

[0006] An automatic loading and unloading freight elevator, comprising a jump mechanism for installation in a hoistway, a loading and unloading mechanism for installation in an elevator lobby, a transport mechanism for transporting goods, and a control mechanism for controlling each mechanism;

[0007] The control mechanism is respectively communicated with the elevator doors of each floor, the jump mechanism, the transport mechanism and the loading and unloading mechanism; the jump mechanism includes a car and a first drive component for pulling the car to jump in the shaft; the transport mechanism includes a transport platform movably arranged in the car and a second drive component for driving the transport platform in and out of the car; the loading and unloading mechanism includes a plurality of telescopic pile groups installed in the elevator lobby of each floor and used to unload goods from the transport platform or load goods onto the transport platform.

[0008] Through the above scheme, the present invention at least achieves the following technical effects:

[0009] In order to install cabin elevators in multi-story buildings, a vertical shaft must be reserved, and each floor is equipped with an elevator lobby connected to the shaft for the elevator's jump movement. An elevator door is installed at the connection between the elevator lobby and the shaft to prevent people from accidentally falling.

[0010] When loading goods, the control mechanism controls the first driving component in the jump mechanism to pull the car to move to the elevator lobby on the floor where the goods to be loaded are located; after the car arrives, the control mechanism controls the elevator door to open, and controls the second driving component in the carrying mechanism in the car to drive the carrying platform to move toward the elevator lobby; at the same time, the control mechanism controls the telescopic pile group in the elevator lobby on the floor where the goods to be loaded are located to extend to lift the goods so that the carrying platform can move to the bottom of the goods; the control mechanism controls the telescopic pile group to contract so that the goods fall on the top surface of the carrying platform as the telescopic pile group descends; the control mechanism controls the second driving component to drive the carrying platform to move toward the car and enter the car, and the control mechanism controls the elevator door to close, completing the process of automatic loading of goods.

[0011] When unloading goods, the control mechanism controls the first driving component in the jump mechanism to pull the car to the elevator lobby of the target floor for unloading goods; after the car arrives, the control mechanism controls the elevator door to open, and controls the second driving component in the carrying mechanism in the car to drive the carrying platform to move toward the elevator lobby, until the carrying platform runs to the position of the telescopic pile group and stops; the control mechanism controls the telescopic pile group in the elevator lobby of the target floor to extend, lift the goods off the top surface of the carrying platform, so that the carrying platform can leave from under the goods and return to the car in a state of being out of contact with the goods; the control mechanism controls the elevator door to close; at the same time, the control mechanism controls the telescopic pile group in the elevator lobby of the target floor to contract, place the goods on the ground of the elevator lobby, and complete the process of automatic unloading of goods.

[0012] The automatic loading and unloading freight elevator makes up for the technical deficiencies in the field of automatic loading and unloading of freight elevators in the prior art. The automatic loading and unloading freight elevator has a simple structure and can save manufacturing and maintenance costs. The carrying mechanism of the automatic loading and unloading freight elevator occupies a small volume of the car and a small carrying weight of the car, which can save the loading volume and loading weight of the freight elevator while realizing automatic loading and unloading of goods, thereby improving the carrying efficiency of the freight elevator and saving labor costs.

[0013] Preferably, the loading and unloading mechanism also includes a plurality of track groups installed in the elevator lobby on each floor and used for docking with the car; any of the track groups includes at least two parallel track grooves; the carrying platform can enter the elevator lobby along the track group or return to the car along the track group.

[0014] The track group is used to limit the moving direction of the carrying platform to prevent the carrying platform with a deviated moving direction from being unable to cooperate with the telescopic pile group; or to prevent the carrying platform with a deviated moving direction from being unable to return to the car from the elevator lobby.

[0015] Preferably, the loading and unloading mechanism also includes a shelf; the shelf is horizontally laid on the top of any one of the telescopic pile groups; any one of the telescopic pile groups includes at least three telescopic piles; at least three of the telescopic piles are respectively arranged on both sides of the end of the track group away from the elevator door, and the distance between the telescopic piles on both sides of the track group is greater than the width of the carrying platform; the maximum length of any one of the telescopic piles is greater than the height of the carrying platform.

[0016] The shelf is used to hold goods that are small in size or cannot be directly lifted by the telescopic pile group; the shelf is used as a carrier for the goods and is loaded onto or unloaded from the carrying platform by the telescopic pile group. Based on the principle that at least three points can support a plane, each telescopic pile group includes at least three telescopic piles; at least three telescopic piles are respectively arranged on both sides of the end of the track group away from the elevator door. For example: if there are three telescopic piles, one is arranged on one side of the track group and two are arranged on the other side; in this solution, four telescopic piles are selected, and two are arranged on each side of the track group, so that the four telescopic piles form a rectangle for stably supporting the shelf.

[0017] Since the carrying platform needs to run along the track group to the bottom of the shelf supported by the telescopic pile group when loading and unloading goods, the distance between the telescopic piles on both sides of the track group is greater than the width of the carrying platform to avoid collision between the telescopic piles and the carrying platform, which will cause the carrying platform to be blocked and unable to operate. At the same time, the length of each telescopic pile extended to the limit is greater than the height of the carrying platform, so that the shelf is higher than the top surface of the carrying platform to complete loading and unloading.

[0018] Preferably, the first driving assembly includes a jump-layer motor and a traction rope installed in the hoistway; the jump-layer motor is connected to the car transmission through the traction rope.

[0019] The jump motor is used to provide power for the car to move in the shaft. The traction rope is used to connect the car and the jump motor. This scheme cites two transmission connection methods between the traction rope and the jump motor; the first is: one end of the traction rope is fixed to the car, and the other end is wound on the reel at the output end of the jump motor. The jump motor rotates the reel to reel in or unreel to change the length of the traction rope, thereby achieving the effect of controlling the lifting and lowering of the car. The second is: one end of the traction rope is fixed to the car, and a counterweight is fixed to the other end. The rope body of the traction rope is wound around the transmission wheel at the output end of the jump motor. The jump motor drives the transmission wheel to roll to drive the traction rope to move, thereby achieving the effect of controlling the lifting and lowering of the car. There are many coordination schemes between the jump motor and the traction rope, which will not be repeated here.

[0020] Preferably, the second driving assembly includes a servo motor arranged on the floor plate of the car, a transmission chain fixed to the bottom of the carrying platform, and a transmission shaft meshing with the transmission chain; the transmission shaft is axially connected to the inner wall of the car and is connected to the servo motor through a transmission belt; the servo motor drives the transmission shaft to rotate, causing the transmission chain to move horizontally and drive the carrying platform in and out of the car.

[0021] The servo motor drives the transmission shaft to rotate, and through the meshing of the transmission shaft and the transmission chain, the transmission chain is forced to move in the horizontal direction. The carrying platform moves in and out of the car with the movement of the transmission chain, achieving the effect of transporting goods in and out of the car.

[0022] Preferably, a plurality of rollers are installed at the bottom of the carrying platform, and any of the rollers rolls along the track groove; the carrying mechanism also includes a limit assembly; the limit assembly includes a limiter arranged on the floor of the car; the limiter is used to lock the rollers.

[0023] The bottom of the platform is equipped with rollers for easy movement. The rolling friction of the rollers generates little resistance, which can reduce the energy consumed in driving the platform. After the platform leaves the car, the rollers roll along the track grooves to allow the platform to move accurately to the area where the telescopic pile group is located.

[0024] When the carrying platform is parked in the car, the carrying platform is firmly locked in the car by the limiter locking roller set on the car floor, so as to prevent the carrying platform from being displaced by bumps during the movement of the car, causing wear of the meshing tooth structure of the transmission chain and the transmission shaft, or to prevent the carrying platform from colliding with the inner wall of the car and causing damage.

[0025] Preferably, the control mechanism includes a control terminal and several hall call panels installed in each elevator lobby and communicatively connected to the control terminal; any hall call panel is provided with a display screen and a hall call button; the control terminal is respectively communicatively connected to the elevator doors on each floor, the first drive assembly, the second drive assembly, several telescopic pile groups and the limiter.

[0026] A hall call panel is installed in the elevator lobby on each floor. The hall call panel is equipped with a display screen for displaying the status of the freight elevator and a hall call button for calling the elevator. The hall call panel can communicate data with the control terminal. At the same time, the control terminal communicates data with the elevator door, jump floor motor, servo motor, several telescopic piles and limiters to send commands. Thus, the operation steps of each mechanism are controlled.

[0027] Preferably, the control mechanism also includes security sensors installed on the elevator doors on each floor; the security sensors are communicatively connected to the control terminal; the monitoring area of ​​the security sensors covers the telescopic pile group and the elevator door, and is used to send an alarm signal to the control terminal when a human body is detected passing through the monitoring area, so that the control terminal controls the elevator door to close.

[0028] Security sensors are used to prevent people from getting hurt when they mistakenly enter the working area of ​​the freight elevator during the automatic loading and unloading process. Security sensors include one or a combination of optical sensors such as laser sensors, infrared sensors or ultrasonic sensors. Anbo sensors form a monitoring area in the elevator lobby that covers the track group, telescopic pile group and elevator door. When a human body is detected passing through the monitoring area, an alarm signal is sent to the control terminal, so that the control terminal controls the elevator door to close.

[0029] The present invention also provides a control method for an automatic loading and unloading freight elevator, comprising an automatic loading and unloading freight elevator; the automatic unloading freight elevator comprises: a car arranged in a shaft, a first drive assembly for pulling the car to move in the shaft, a carrying platform arranged in the car, a roller installed at the bottom of the carrying platform, a second drive assembly for driving the carrying platform to enter and exit the car, a stopper arranged on the floor of the car, a plurality of track groups installed in the elevator lobby of each floor and used for docking with the car, a plurality of telescopic pile groups installed in the elevator lobby of each floor and used for unloading goods from the carrying platform or loading goods onto the carrying platform, a shelf horizontally laid on the top of any of the telescopic pile groups, a plurality of hall call panels and a control terminal installed in each hall; the hall call panel comprises a display screen and a hall call button; the control terminal is respectively connected to the plurality of hall call panels, elevator doors on each floor, the first drive assembly, the second drive assembly, the plurality of telescopic pile groups and the stopper for communication; and the following automatic loading and unloading steps are also included:

[0030] S1. Start the cargo transport mode: When the control terminal receives an instruction generated by a first touch operation of the hall call button on the hall call panel, the current working mode is switched to the cargo transport mode, and the display screen is controlled to display the first information indicating that the current operating mode is the cargo transport mode;

[0031] S2, empty car jump floor movement: the control terminal controls the first drive assembly to drive the car to move in the hoistway to the elevator lobby where the hall call button is located, and makes the car floor level with the floor of the elevator lobby; and controls the elevator door to open;

[0032] S3, the goods to be loaded are in place: after the elevator door is opened, the control terminal controls the telescopic pile group in the elevator lobby where the hall call button is located to extend synchronously to a position where the shelf loaded with goods is higher than the top surface of the carrying platform;

[0033] S4, the empty loading platform is in place: after the elevator door is opened, the control terminal controls the limiter to unlock the roller of the loading platform; and controls the second drive assembly to drive the loading platform to move horizontally toward the elevator lobby, the loading platform moves out of the elevator car from the elevator door and continues to move along the track group installed in the elevator lobby to the area where the telescopic pile group is located; when the loading platform moves to the area where the telescopic pile group is located, the control terminal controls the second drive assembly to stop running, so that the loading platform stops in the space between the shelf and the floor of the elevator lobby;

[0034] S5, loading: the control terminal controls the telescopic pile group to shorten synchronously so that the shelf loaded with goods is placed on the top surface of the carrying platform;

[0035] S6, cargo recovery on the transport platform: the control terminal controls the second drive assembly to drive the transport platform to move horizontally toward the car, and the transport platform moves along the track group to the elevator door and then enters the car;

[0036] S7, Carrying platform locking: After the carrying platform enters the car, the control terminal controls the limiter to lock the rollers that fix the carrying platform and controls the elevator door to close;

[0037] S8, cargo leaping: the control terminal controls the first driving assembly to drive the car to move in the hoistway to the elevator lobby of the target floor for cargo delivery, and makes the car floor level with the floor of the elevator lobby; at the same time, controls the elevator door of the target floor to open;

[0038] S9, the loading platform is in place: after the elevator door of the target floor is opened, the control terminal controls the limiter to unlock the roller of the loading platform, and controls the second drive assembly to drive the loading platform to move horizontally toward the elevator lobby of the target floor, and the loading platform carrying the shelf and the goods loaded on the shelf moves out of the elevator car from the elevator door and continues to move along the track group installed in the elevator lobby of the target floor to the area where the telescopic pile group is located; when the loading platform moves to the area where the telescopic pile group is located, the control terminal controls the second drive assembly to stop running, so that the part of the bottom of the shelf protruding from the edge of the loading platform is suspended above the telescopic pile group;

[0039] S10, the goods to be unloaded are in place: the control terminal controls the telescopic pile group in the elevator lobby of the target floor to be synchronously extended to a position where the shelf loaded with goods is higher than the top surface of the carrying platform, so that the shelf is separated from the top surface of the carrying platform;

[0040] S11, empty recovery of the carrying platform: the control terminal controls the second driving assembly to drive the carrying platform to move horizontally toward the car, until the carrying platform moves along the track group of the target layer to the elevator door and then enters the car; when the carrying platform enters the car, the control terminal controls the elevator door to close;

[0041] S12, unloading: after the carrying platform is recovered to the car, the control terminal controls the telescopic pile group of the target layer to shrink synchronously until it is retracted below the floor of the elevator lobby, so that the shelf is placed on the floor of the elevator lobby to complete the unloading.

[0042] Through the above scheme, the present invention at least achieves the following technical effects:

[0043] The control method of the automatic loading and unloading freight elevator makes up for the technical deficiencies in the field of automatic loading and unloading of freight elevators in the prior art. The goods are placed on the shelf at the preset position, and the freight elevator is summoned and the operation mode of the freight elevator is switched to the freight mode through the first touch operation. When the car arrives, the bottom plate of the car is level with the ground of the elevator waiting hall, and the carrying platform and the telescopic pile group automatically carry out the steps of loading and unloading goods. The control method of the automatic loading and unloading freight elevator is simple, easy to operate and train. It improves the transportation efficiency of the freight elevator and saves labor costs.

[0044] Preferably, the method further includes the following steps:

[0045] S13, start the normal mode: when the control terminal receives the instruction generated by the second touch operation of the hall call button on the hall call panel, the current working mode is switched to the normal mode, and the display screen is controlled to display the second information indicating that the current operating mode is the normal mode;

[0046] S14, empty car jump floor movement: the control terminal controls the first drive assembly to drive the car to move in the hoistway to the elevator lobby where the hall call button is located, and makes the top surface of the carrying platform level with the floor of the elevator lobby; and controls the elevator door to open;

[0047] S15, Passengers enter the elevator: After the passengers enter the elevator car, the control terminal controls the elevator door to close;

[0048] S16, passenger leap-floor movement: the control terminal controls the first drive assembly to drive the car to move in the hoistway to the elevator lobby of the passenger's target floor, and makes the top surface of the carrying platform level with the floor of the elevator lobby; at the same time, the elevator door is controlled to open;

[0049] S17, passengers leaving the elevator: people leave the car; the control terminal controls the elevator door to close, completing the passenger loading.

[0050] On the basis of automatic loading and unloading of goods, different functions can be realized by calling different elevator operations. When passengers or people carrying goods need to be carried, the second touch operation can be used to call the elevator and switch the operation mode of the freight elevator to the normal mode. When the car arrives, the carrying platform is level with the bottom surface of the elevator waiting hall to facilitate people to enter and exit. At the same time, it can avoid injuries caused by the movement of the carrying platform. The freight elevator has realized multiple application functions in different states and improved the utilization rate of the freight elevator.

[0051] Preferably, the control mechanism also includes security sensors installed on the elevator doors of each floor; the security sensors are communicatively connected to the control terminal; the monitoring area of ​​the security sensor covers the telescopic pile group and the elevator door, and is used to send an alarm signal to the control terminal when a human body is detected passing through the monitoring area, so that the control terminal controls the elevator door to close; the control method also includes: when the control terminal is in cargo transportation mode, the control terminal controls the security sensor to start; when the control terminal determines that there is a human body in the monitoring area based on the detection information detected and sent by the security sensor, the elevator door is controlled to close, and the first drive assembly, the second drive assembly and the telescopic pile group are controlled to stop working.

[0052] When in cargo transport mode, the security sensor is activated. When the control terminal receives detection information from the security sensor indicating the presence of a human body in the monitoring area, the elevator door is controlled to close to prevent people from entering the elevator and causing danger. At the same time, all actions of the jump mechanism, loading and unloading mechanism and transport mechanism are terminated to prevent the transport platform or the shelves supported by the telescopic pile group from causing harm to people who accidentally enter the work area. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 The figure is a schematic side structural diagram of an automatic loading and unloading freight elevator provided in one embodiment of the present invention.

[0054] Figure 2 The figure is a schematic diagram of the structure of an automatic loading and unloading freight elevator provided in one embodiment of the present invention from above.

[0055] Figure 3 This is a schematic diagram of the main structure of an automatic loading and unloading freight elevator provided in one embodiment of the present invention.

[0056] Figure 4 It is a schematic diagram of the local structure of the bottom of the car provided in one embodiment of the present invention.

[0057] Figure 5 It is a schematic diagram of the partial structure of the second driving assembly provided in one embodiment of the present invention.

[0058] Figure 6 The present invention is a mode switching control flow chart of an automatic loading and unloading freight elevator provided in one embodiment.

[0059] Figure 7 The present invention is a flow chart of cargo loading control for an automatic loading and unloading freight elevator provided in one embodiment of the present invention.

[0060] Figure 8 The present invention is a flow chart of cargo unloading control for an automatic loading and unloading cargo elevator provided in one embodiment of the present invention.

[0061] legend:

[0062] 1 shaft; 2 elevator lobby; 3 elevator door; 4 jump mechanism; 5 loading and unloading mechanism; 6 transport mechanism; 7 control mechanism;

[0063] 41 car; 42 first drive assembly;

[0064] 51 telescopic pile group; 52 track group; 53 shelf;

[0065] 61 carrying platform; 62 second driving assembly; 63 limiting assembly;

[0066] 71 control terminal; 72 hall call panel; 73 security sensor;

[0067] 421 skip motor; 422 traction rope;

[0068] 511 telescopic pile;

[0069] 521 track slot

[0070] 611 roller;

[0071] 621 servo motor; 622 transmission chain; 623 transmission shaft; 624 transmission belt;

[0072] 631 front stopper; 632 rear stopper;

[0073] 721 display screen; 722 hall call button. DETAILED DESCRIPTION

[0074] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0075] See also Figure 1-Figure 8 .

[0076] Embodiment 1:

[0077] like Figure 1-Figure 5 As shown, an automatic loading and unloading freight elevator comprises a jump mechanism 4 for installation in a shaft 1, a loading and unloading mechanism 5 for installation in an elevator lobby 2, a transport mechanism 6 for transporting goods, and a control mechanism 7 for controlling each mechanism;

[0078] The control mechanism 7 is respectively communicated with the elevator door 3, the jump mechanism 4, the transport mechanism 6 and the loading and unloading mechanism 5; the jump mechanism 4 includes a car 41 and a first drive component 42 for pulling the car 41 to jump in the shaft 1; the transport mechanism 6 includes a transport platform 61 movably arranged in the car 41 and a second drive component 62 for driving the transport platform 61 in and out of the car 41; the loading and unloading mechanism 5 includes a plurality of telescopic pile groups 51 installed in the elevator lobby 2 of each floor and used to unload goods from the transport platform 61 or load goods onto the transport platform 61.

[0079] Through the above scheme, the present invention at least achieves the following technical effects:

[0080] In order to install a box elevator in a multi-story building, a vertical shaft 1 must be reserved, and each floor is provided with a waiting hall 2 connected to the shaft 1 for the elevator to move between floors. An elevator door 3 is provided at the connection between the waiting hall 2 and the shaft 1 to prevent people from accidentally falling.

[0081] When loading goods, the control mechanism 7 controls the first driving component 42 in the jump mechanism 4 to pull the car 41 to move to the elevator lobby 2 on the floor where the goods to be loaded are located; after the car 41 arrives, the control mechanism 7 controls the elevator door 3 to open, and controls the second driving component 62 in the carrying mechanism 6 in the car 41 to drive the carrying platform 61 to move toward the elevator lobby 2; at the same time, the control mechanism 7 controls the telescopic pile group 51 in the elevator lobby 2 on the floor where the goods to be loaded are located to extend to lift the goods so that the carrying platform 61 can move to the bottom of the goods; the control mechanism 7 controls the telescopic pile group 51 to contract so that the goods fall on the top surface of the carrying platform 61 during the process of descending with the telescopic pile group 51; the control mechanism 7 controls the second driving component 62 to drive the carrying platform 61 to move toward the car 41 and enter the car 41, and the control mechanism 7 controls the elevator door 3 to close, completing the process of automatic loading of goods.

[0082] When unloading goods, the control mechanism 7 controls the first driving component 42 in the leap-level mechanism 4 to pull the car 41 to move to the elevator lobby 2 of the target floor for unloading goods; after the car 41 arrives, the control mechanism 7 controls the elevator door 3 to open, and controls the second driving component 62 in the carrying mechanism 6 in the car 41 to drive the carrying platform 61 to move toward the elevator lobby 2 until the carrying platform 61 runs to the position of the telescopic pile group 51 and stops; the control mechanism 7 controls the telescopic pile group 51 in the elevator lobby 2 of the target floor to extend, lift the goods off the top surface of the carrying platform 61, so that the carrying platform 61 can leave from under the goods and return to the car 41 in a state of being out of contact with the goods; the control mechanism 7 controls the elevator door 3 to close; at the same time, the control mechanism 7 controls the telescopic pile group 51 in the elevator lobby 2 of the target floor to contract, place the goods on the ground of the elevator lobby 2, and complete the process of automatically unloading goods.

[0083] The automatic loading and unloading freight elevator makes up for the technical deficiencies in the field of automatic loading and unloading of freight elevators in the prior art. The simple structure of the automatic loading and unloading freight elevator can save manufacturing and maintenance costs. The carrying mechanism 6 of the automatic loading and unloading freight elevator occupies a small volume of the car 41 and a small carrying weight of the car 41, which can save the loading volume and loading weight of the freight elevator while realizing automatic loading and unloading of goods, thereby improving the carrying efficiency of the freight elevator and saving labor costs.

[0084] Based on the above scheme, in order to accurately control the movement direction and position of the carrying platform 61, in one embodiment, the loading and unloading mechanism 5 also includes a plurality of track groups installed in the elevator lobby 2 of each floor and used to dock with the car 41; any of the track groups includes at least two mutually parallel track grooves 521; the carrying platform 61 can enter the elevator lobby 2 along the track group or return to the car 41 along the track group. The track group is used to limit the movement direction of the carrying platform 61, to prevent the carrying platform 61 with a deviation in movement direction from being unable to cooperate with the telescopic pile group 51; or to prevent the carrying platform 61 with a deviation in movement direction from being unable to return to the car 41 from the elevator lobby 2.

[0085] Based on the above scheme, in order to facilitate the loading of small or irregularly shaped goods and enable loading and unloading by the telescopic pile group 51, in one embodiment, the loading and unloading mechanism 5 also includes a shelf; the shelf is horizontally laid on the top of any telescopic pile group 51; any telescopic pile group 51 includes at least three telescopic piles 511; at least three telescopic piles 511 are respectively arranged on both sides of the end of the track group away from the elevator door 3, and the distance between the telescopic piles 511 on both sides of the track group is greater than the width of the carrying platform 61; the maximum length of any telescopic pile 511 is greater than the height of the carrying platform 61.

[0086] The shelf is used to hold goods that are small in size or cannot be directly lifted by the telescopic pile group 51; the shelf is used as a carrier of the goods and is loaded onto or unloaded from the carrying platform 61 by the telescopic pile group 51. According to the principle that at least three points can support a plane, each telescopic pile group 51 includes at least three telescopic piles 511; at least three telescopic piles 511 are respectively arranged on both sides of the end of the track group away from the elevator door 3. For example: if there are three telescopic piles 511, one is arranged on one side of the track group and two are arranged on the other side; in this solution, four telescopic piles 511 are selected, and two are arranged on each side of the track group, so that the four telescopic piles 511 form a rectangle for stably supporting the shelf.

[0087] Since the carrying platform 61 needs to run along the track group to the bottom of the shelf supported by the telescopic pile group 51 when loading and unloading goods, the distance between the telescopic piles 511 on both sides of the track group is greater than the width of the carrying platform 61, so as to avoid the telescopic piles 511 colliding with the carrying platform 61 and causing the carrying platform 61 to be blocked and unable to run. At the same time, the length of each telescopic pile 511 when extended to the limit is greater than the height of the carrying platform 61, so that the shelf is higher than the top surface of the carrying platform 61 to complete the loading and unloading.

[0088] Based on the above scheme, in order to enable the car 41 to move in the shaft 1, in one embodiment, the first driving component 42 includes a jump-layer motor 421 and a traction rope 422 installed in the shaft 1; the jump-layer motor 421 is connected to the car 41 through the traction rope 422. The jump-layer motor 421 is used to provide power for the car 41 to move in the shaft 1. The traction rope 422 is used to connect the car 41 and the jump-layer motor 421. In this scheme, two transmission connection modes of the traction rope 422 and the jump-layer motor 421 are exemplified; the first is: one end of the traction rope 422 is fixed to the car 41, and the other end is wound on the reel at the output end of the jump-layer motor 421. The jump-layer motor 421 rotates the reel to reel in or unreel to change the length of the traction rope 422, thereby achieving the effect of controlling the lifting and lowering of the car 41. The second is: one end of the traction rope 422 is fixed to the car 41, and a counterweight is fixed to the other end. The rope body of the traction rope 422 is wound around the transmission wheel at the output end of the jump motor 421. The jump motor 421 drives the transmission wheel to roll to drive the traction rope 422 to move, thereby achieving the effect of controlling the lifting and lowering of the car 41. There are many matching schemes between the jump motor 421 and the traction rope 422, which will not be described in detail here.

[0089] Based on the above scheme, in order to enable the carrying platform 61 to enter the elevator lobby 2 to load and unload goods and then return to the car 41, in one embodiment, the second driving assembly 62 includes a servo motor 621 arranged on the bottom plate of the car 41, a transmission chain 622 fixed to the bottom of the carrying platform 61, and a transmission shaft 623 meshed with the transmission chain 622; the transmission shaft 623 is axially connected to the inner wall of the car 41, and is connected to the servo motor 621 through a transmission belt 624; the servo motor 621 drives the transmission shaft 623 to rotate so that the transmission chain 622 moves horizontally and drives the carrying platform 61 in and out of the car 41. The servo motor 621 drives the transmission shaft 623 to rotate, and through the meshing of the transmission shaft 623 and the transmission chain 622, the transmission chain 622 is forced to move in the horizontal direction. The carrying platform 61 enters and exits the car 41 with the movement of the transmission chain 622, so as to achieve the effect of transporting goods in and out of the car 41.

[0090] Based on the above scheme, in order to reduce the resistance of the carrying platform 61 during movement and improve the stability of the carrying platform 61 when it is stationary in the car 41, in one embodiment, a plurality of rollers 611 are installed at the bottom of the carrying platform 61, and any of the rollers 611 rolls along the track groove 521; the carrying mechanism 6 also includes a limit assembly 63; the limit assembly 63 includes a limiter arranged on the bottom plate of the car 41; the limiter is used to lock the roller 611.

[0091] The bottom of the carrying platform 61 is provided with rollers 611 for easy movement, and the rolling friction of the rollers 611 generates little resistance, which can reduce the energy consumed in driving the carrying platform 61. After the carrying platform 61 leaves the car 41, the rollers 611 roll along the track grooves 521, so that the carrying platform 61 moves accurately to the area where the telescopic pile group 51 is located.

[0092] When the carrying platform 61 is parked in the car 41, the carrying platform 61 is firmly locked in the car 41 by the limiter locking roller 611 set on the bottom plate of the car 41, so as to prevent the carrying platform 61 from being displaced by bumps during the movement of the car 41, causing wear of the meshing tooth structure of the transmission chain 622 and the transmission shaft 623, or to prevent the carrying platform 61 from colliding with the inner wall of the car 41 and causing damage.

[0093] In this solution, there are two limiters, namely, a front limiter 631 on the side close to the elevator door 3 and a rear limiter 632 on the side opposite to the elevator door 3. When the carrying platform 61 is stationary in the car 41, the two limiters respectively block the rollers 611 at the front and rear ends of the moving direction of the carrying platform 61, so that the carrying platform 61 cannot move. When the elevator door 3 is opened, the front limiter 631 is unlocked, and the carrying platform 61 can enter the elevator lobby 2 through the elevator door 3. After loading and unloading, when the carrying platform 61 returns to the car 41, the roller 611 contacts the rear limiter 632, and a contact sensor is provided on the rear limiter 632. The contact sensor sends a contact signal to the control mechanism 7, and the control mechanism 7 controls the front limiter 631 to lock the roller 611. The two limiters block the rollers 611 at the front and rear ends of the moving direction of the carrying platform 61 again, so that the carrying platform 61 cannot move.

[0094] Based on the above scheme, in order to realize the control of the freight elevator through the external call panel 72, in one embodiment, the control mechanism 7 includes a control terminal 71 and a plurality of external call panels 72 installed in each elevator lobby 2 and communicatively connected to the control terminal 71; any of the external call panels 72 is provided with a display screen 721 and an external call button 722; the control terminal 71 is respectively communicatively connected to the elevator door 3 on each floor, the first drive assembly 42, the second drive assembly 62, a plurality of telescopic pile groups 511 and the limiter.

[0095] A hall call panel 72 is provided in each floor lobby 2. The hall call panel 72 is provided with a display screen 721 for displaying the state of the freight elevator and a hall call button 722 for calling the elevator. The hall call panel 72 can communicate data with the control terminal 71. At the same time, the control terminal 71 communicates data with the elevator door 3, the jump motor 421, the servo motor 621, the plurality of telescopic piles 511 and the limiter for sending commands. Thus, the operation steps of each mechanism are controlled.

[0096] Based on the above scheme, in order to prevent people from accidentally entering the automatic loading and unloading working area and getting hurt, in one embodiment, the control mechanism 7 also includes a security sensor 73 installed on the elevator door 3 on each floor; the security sensor 73 is communicatively connected with the control terminal 71; the monitoring area of ​​the security sensor 73 covers the telescopic pile group 51 and the elevator door 3, and is used to send an alarm signal to the control terminal 71 when a human body is detected passing through the monitoring area, so that the control terminal 71 controls the elevator door 3 to close.

[0097] The security sensor 73 is used to prevent people from accidentally entering the working area of ​​the freight elevator and getting hurt during the automatic loading and unloading of goods by the freight elevator. The security sensor 73 includes one or a combination of optical sensors such as laser sensors, infrared sensors or ultrasonic sensors. The security sensor forms a monitoring area covering the track group, the telescopic pile group 51 and the elevator door 3 in the elevator lobby 2, and is used to send an alarm signal to the control terminal 71 when a human body is detected passing through the monitoring area, so that the control terminal 71 controls the elevator door 3 to close.

[0098] like Figure 1-Figure 8 As shown, a control method for an automatic loading and unloading freight elevator includes an automatic loading and unloading freight elevator; the automatic unloading freight elevator includes: a car 41 arranged in a hoistway, a first driving assembly 42 for pulling the car 41 to move in a jump layer in the hoistway 1, a carrying platform 61 arranged in the car 41, a roller 611 installed at the bottom of the carrying platform 61, a second driving assembly 62 for driving the carrying platform 61 to enter and exit the car, a limiter arranged on the car floor, a plurality of track groups 52 installed in the elevator hall 2 of each floor and used for docking with the car 41, and a plurality of track groups 52 installed in the elevator hall 2 of each floor. The invention also includes a plurality of telescopic pile groups 51 for unloading goods from the carrying platform 61 or loading goods onto the carrying platform 61, a shelf 53 horizontally laid on the top of any of the telescopic pile groups 51, a plurality of hall call panels 72 and a control terminal 71 installed in each elevator lobby 2; the hall call panel 72 includes a display screen 721 and a hall call button 722; the control terminal 71 is respectively connected to the plurality of hall call panels 72, the elevator doors 3 on each floor, the first drive assembly 42, the second drive assembly 62, the plurality of telescopic pile groups 51 and the limiter for communication; and the following automatic loading and unloading steps are also included:

[0099] S1. Start the cargo transport mode: When the control terminal 71 receives the instruction generated by the first touch operation of the hall call button 722 on the hall call panel 72, the current working mode is switched to the cargo transport mode, and the display screen 721 is controlled to display the first information indicating that the current operating mode is the cargo transport mode;

[0100] S2, empty car jump floor movement: the control terminal 71 controls the first drive assembly 42 to drive the car 41 to move in the hoistway 1 to the elevator lobby 2 where the hall call button 722 is located, and makes the bottom plate of the car 41 level with the floor of the elevator lobby 2; and controls the elevator door 3 to open;

[0101] S3, the goods to be loaded are in place: after the elevator door 3 is opened, the control terminal 71 controls the telescopic pile group 51 of the elevator lobby 2 where the hall call button 722 is located to synchronously extend to a position where the shelf 53 loaded with goods is higher than the top surface of the carrying platform 61;

[0102] S4, the carrying platform 61 is in place without load: after the elevator door 3 is opened, the control terminal 71 controls the limiter to unlock the roller 611 of the carrying platform 61; and controls the second drive assembly 62 to drive the carrying platform 61 to move horizontally toward the elevator lobby 2, the carrying platform 62 travels out of the car 41 from the elevator door 3 and continues to move along the track assembly 52 installed in the elevator lobby 2 to the area where the telescopic pile assembly 51 is located; when the carrying platform 61 moves to the area where the telescopic pile assembly 51 is located, the control terminal 71 controls the second drive assembly 62 to stop running, so that the carrying platform 61 stops in the space between the shelf 53 and the floor of the elevator lobby 2;

[0103] S5, loading: the control terminal 71 controls the telescopic pile group 51 to be shortened synchronously, so that the shelf 53 loaded with goods is placed on the top surface of the carrying platform 61;

[0104] S6, cargo recovery of the carrying platform 61: the control terminal 71 controls the second driving assembly 62 to drive the carrying platform 61 to move horizontally toward the car 41, and the carrying platform 61 moves along the track group 52 to the elevator door 3 and then enters the car 41;

[0105] S7, the carrying platform 61 is locked: after the carrying platform 61 enters the car 41, the control terminal 71 controls the limiter to lock the roller 611 that fixes the carrying platform 61, and controls the elevator door 3 to close;

[0106] S8, cargo leaping: the control terminal 71 controls the first driving assembly 42 to drive the car 41 to move in the shaft 1 to the elevator lobby 2 of the target floor for cargo transportation, and makes the bottom plate of the car 41 level with the floor of the elevator lobby 2; at the same time, the elevator door 3 of the target floor is controlled to open;

[0107] S9, the loading platform 61 is in place: after the elevator door 3 of the target floor is opened, the control terminal 71 controls the limiter to unlock the roller 611 of the loading platform 61, and controls the second drive assembly 62 to drive the loading platform 61 to move horizontally toward the elevator lobby 2 of the target floor, and the loading platform 61 carrying the shelf 53 and the goods loaded on the shelf 53 moves out of the elevator car 41 from the elevator door 3 and continues to move along the track group 52 installed in the elevator lobby 2 of the target floor to the area where the telescopic pile group 51 is located; when the loading platform 61 moves to the area where the telescopic pile group 51 is located, the control terminal 71 controls the second drive assembly 62 to stop running, so that the bottom part of the shelf 53 protruding from the edge of the loading platform 61 is suspended above the telescopic pile group 51;

[0108] S10, the goods to be unloaded are in place: the control terminal 71 controls the telescopic pile group 51 of the elevator lobby 2 of the target floor to be synchronously extended to a position where the shelf 53 loaded with goods is higher than the top surface of the carrying platform 61, so that the shelf 53 is separated from the top surface of the carrying platform 61;

[0109] S11, empty recovery of the carrying platform 61: the control terminal 71 controls the second driving assembly 62 to drive the carrying platform 61 to move horizontally toward the car 41, until the carrying platform 61 moves along the track group 52 of the target layer to the elevator door 3 and then enters the car 41; when the carrying platform 61 enters the car 41, the control terminal 71 controls the elevator door 3 to close;

[0110] S12, unloading: after the carrying platform 61 is recovered to the car 41, the control terminal 71 controls the telescopic pile group 51 of the target layer to shrink synchronously until it shrinks below the floor of the elevator lobby 2, so that the shelf 53 is placed on the floor of the elevator lobby 2, and the unloading is completed.

[0111] Through the above scheme, the present invention at least achieves the following technical effects:

[0112] The control method of the automatic loading and unloading freight elevator makes up for the technical deficiencies in the field of automatic loading and unloading of freight elevators in the prior art. The goods are placed on the shelf 53 at the preset position, and the freight elevator is summoned and the operation mode of the freight elevator is switched to the freight mode through the first touch operation. When the car 41 arrives, the bottom plate of the car 41 is level with the ground of the elevator waiting hall 2, and the carrying platform 61 and the telescopic pile group 51 automatically carry out the steps of loading and unloading goods. The control method of the automatic loading and unloading freight elevator is simple, easy to operate and train. The transportation efficiency of the freight elevator is improved, and labor costs are saved.

[0113] It is worth mentioning that in the above embodiment, the first touch operation is double-clicking the hall call button 722, and the control terminal 71 switches to the cargo mode after receiving the signal. And the first information displayed on the display screen is "cargo mode" to remind the people in the elevator lobby of the current operation mode of the cargo elevator to avoid people entering by mistake.

[0114] like Figure 7 As shown, in the above embodiment, step S3 of placing the cargo to be loaded in place and step S4 of placing the empty transport platform in place can be performed synchronously.

[0115] Based on the above solution, in order to enable passengers or people carrying goods to take the freight elevator, in one embodiment, Figure 6 As shown, it also includes the following steps:

[0116] S13, start the normal mode: when the control terminal 71 receives the instruction generated by the second touch operation of the hall call button 722 on the hall call panel 72, the current working mode is switched to the normal mode, and the display screen 721 is controlled to display the second information indicating that the current operating mode is the normal mode;

[0117] S14, empty car jump floor movement: the control terminal 71 controls the first drive assembly 42 to drive the car 41 to move in the hoistway 1 to the elevator lobby 2 where the hall call button 722 is located, and makes the top surface of the carrying platform 61 level with the floor of the elevator lobby 2; and controls the elevator door 3 to open;

[0118] S15, passenger entry: after the passenger enters the elevator car 41, the control terminal 71 controls the elevator door 3 to close;

[0119] S16, passenger leap-floor movement: the control terminal 71 controls the first drive assembly 42 to drive the elevator car 41 to move in the shaft 1 to the elevator lobby 2 of the passenger's target floor, and makes the top surface of the carrying platform 61 flush with the ground of the elevator lobby 2; at the same time, the elevator door 3 is controlled to open; S17, passenger exiting the elevator: the person leaves the elevator car 41; the control terminal 71 controls the elevator door 3 to close, completing the passenger loading.

[0120] On the basis of automatic loading and unloading of goods, different functions can also be realized by different operations of calling the elevator. When it is necessary to carry passengers or people carrying goods, the elevator can be called through the second touch operation and the operation mode of the freight elevator can be switched to the normal mode. When the car 41 arrives, the carrying platform 61 is made level with the bottom surface of the elevator waiting hall 2 to facilitate the entry and exit of people. At the same time, it is prevented that the movement of the carrying platform 61 may cause injuries to people. A variety of application functions of the freight elevator in different states are realized, and the utilization rate of the freight elevator is improved. Among them, the second touch operation can be the operation of clicking the external call button 722, but it is not limited to this, as long as it is different from the first touch operation and can realize the functions required to be realized in the present invention.

[0121] Based on the above solution, in order to prevent personnel from accidentally entering the automatic loading and unloading work area and being injured, in one embodiment, Figure 6 As shown, the control mechanism 7 also includes a security sensor 73 installed on the elevator door 3 of each floor; the security sensor 73 is in communication connection with the control terminal 71; the monitoring area of ​​the security sensor 73 covers the telescopic pile group 51 and the elevator door 3, and is used to send an alarm signal to the control terminal 71 when a human body is detected passing through the monitoring area, so that the control terminal 71 controls the elevator door 3 to close; the control method also includes: when the control terminal 71 is in the cargo transportation mode, the control terminal 71 controls the security sensor 73 to start; when the control terminal 71 determines that there is a human body in the monitoring area according to the detection information detected and sent by the security sensor 73, the elevator door 3 is controlled to close, and the first drive component 42, the second drive component 62 and the telescopic pile group 51 are controlled to stop working.

[0122] When in the cargo transport mode, the security sensor 73 is activated. When the control terminal 71 receives the detection information of the presence of a human body in the monitoring area sent by the security sensor 73, the elevator door 3 is controlled to close to prevent people from entering the elevator and causing danger. At the same time, all actions of the first drive component 42, the second drive component 62 and the telescopic pile group 51 are terminated to prevent the carrying platform 61 or the shelf 53 supported by the telescopic pile group 51 from causing harm to people who accidentally enter the working area.

[0123] Embodiment 2:

[0124] like Figure 1-Figure 8 As shown, the present invention provides an automatic loading and unloading freight elevator, comprising a jumping mechanism 4, a carrying mechanism 6, a loading and unloading mechanism 5 and a control mechanism 7;

[0125] The jump mechanism 4 includes a jump motor 421, a traction rope 422 and a car 41 arranged in the shaft 1; the jump motor 421 pulls the car 41 through the traction rope 422 to move in the shaft 1, and connects with the elevator lobby 2 of each floor to realize the jump transportation function;

[0126] The transport mechanism 6 includes a transport platform 61 movably arranged in the car 41, a transmission chain 622 fixed to the bottom of the transport platform 61, a transmission shaft 623 meshingly connected to the transmission chain 622, and a servo motor 621 connected to the transmission shaft 623 via a transmission belt 624; the servo motor 621 drives the transmission shaft 623 to rotate, the transmission shaft 623 drives the transmission chain 622 to move, and the transmission chain 622 drives the transport platform 61 to move, so that the transport platform 61 moves from the car 41 to the elevator lobby 2 or from the elevator lobby 2 to the car 41;

[0127] Four rollers 611 are installed at the bottom of the carrying platform 61. The rolling direction of the four rollers 611 is the same as the setting direction of the transmission chain 622, which is used to reduce the resistance generated during the movement of the carrying platform 61. The bottom plate of the car 41 is provided with two wheel grooves, and the four rollers 611 slide in pairs in the same wheel groove.

[0128] The transport mechanism 6 further includes a limit assembly 63, which includes a front limiter 631 and a rear limiter 632. The front limiter 631 is arranged on the floor surface of the car 41 near the elevator door 3, and the rear limiter 632 is arranged on the floor surface of the car 41 opposite to the elevator door 3. When the transport platform 61 is stationary in the car 41, the two limiters respectively block the rollers 611 at the front and rear ends of the transport platform 61 in the moving direction, so that the transport platform 61 cannot move;

[0129] The loading and unloading mechanism 5 includes a track group 52 laid in the elevator lobby 2 and a telescopic pile group 51 symmetrically arranged on both sides of the end of the track group 52; the track group 52 is two parallel track grooves 521, one end of the two tracks is respectively connected to the two wheel grooves in the car 41, which are used to guide the carrying platform 61 to enter the position for loading and unloading goods; the telescopic pile group 51 is four telescopic piles 511, which are arranged in groups of two on both sides of the end of the track group 52. The four telescopic piles 511 form the four vertices of a rectangle; a shelf 53 for carrying goods is laid on the top of the telescopic pile group 51;

[0130] The control mechanism 7 includes a control terminal 71 and an outside call panel 72; the outside call panel 72 is provided with an outside call button 722 and a display screen 721; the control terminal 71 is respectively communicated with the outside call panel 72, the jump floor motor 421, the private service motor, four telescopic piles 511, the elevator door 3, the front limiter 631 and the rear limiter 632.

[0131] The control mechanism 7 also includes a security sensor 73; the security sensor 73 in this solution adopts an infrared sensor, and the infrared sensor is communicatively connected with the control terminal 71; the infrared sensor forms a monitoring area in front of the elevator door 3. When the freight elevator is in a state of automatic loading and unloading of goods, if a person wants to enter the elevator through the monitoring area, the infrared sensor sends an alarm signal to the control terminal 71, and the control terminal 71 sends a door closing command to close the elevator door 3 to avoid personal injury.

[0132] The various technical features in the above implementation modes can be combined arbitrarily as long as there is no conflict or contradiction between the combinations of features. However, due to space limitations, they are not described one by one.

[0133] The present invention is not limited to the above-mentioned embodiments. If various changes or modifications to the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the scope of the claims and equivalent technologies of the present invention, the present invention is also intended to include these changes and modifications.

Claims

1. An automatic loading and unloading freight elevator, characterized in that: It includes a jump mechanism for installation in the hoistway, a loading and unloading mechanism for installation in the elevator lobby, a transport mechanism for transporting goods, and a control mechanism for controlling each mechanism; The control mechanism is respectively connected to the elevator doors of each floor, the jump mechanism, the transport mechanism and the loading and unloading mechanism; the jump mechanism includes a car and a first drive assembly for pulling the car to jump in the hoistway; the transport mechanism includes a transport platform movably arranged in the car and a second drive assembly for driving the transport platform to enter and exit the car; the loading and unloading mechanism includes a plurality of telescopic pile groups installed in the elevator lobby of each floor and used to unload goods from the transport platform or load goods onto the transport platform; The loading and unloading mechanism also includes a plurality of track groups installed in the elevator lobby of each floor and used for docking with the car; any of the track groups includes at least two track grooves parallel to each other; the carrying platform can enter the elevator lobby along the track group or return to the car along the track group; The loading and unloading mechanism also includes a shelf; the shelf is horizontally laid on the top of any telescopic pile group; any telescopic pile group includes at least three telescopic piles; at least three telescopic piles are respectively arranged on both sides of the end of the track group away from the elevator door, and the distance between the telescopic piles on both sides of the track group is greater than the width of the carrying platform; the maximum length of any telescopic pile is greater than the height of the carrying platform; A plurality of rollers are installed at the bottom of the carrying platform, and any of the rollers rolls along the track groove; the carrying mechanism also includes a limiter assembly; the limiter assembly includes a limiter arranged on the floor of the car; the limiter is used to lock the rollers.

2. The automatic loading and unloading freight elevator according to claim 1, characterized in that: The first driving assembly includes a jump-layer motor and a traction rope installed in the hoistway; the jump-layer motor is connected to the car through the traction rope.

3. The automatic loading and unloading freight elevator according to claim 1, characterized in that: The second driving assembly includes a servo motor arranged on the floor of the car, a transmission chain fixed to the bottom of the carrying platform, and a transmission shaft meshing with the transmission chain; the transmission shaft is axially connected to the inner wall of the car and is connected to the servo motor through a transmission belt; the servo motor drives the transmission shaft to rotate so that the transmission chain moves horizontally and drives the carrying platform in and out of the car.

4. The automatic loading and unloading freight elevator according to claim 1, characterized in that: The control mechanism includes a control terminal and several hall call panels installed in each elevator lobby and communicatively connected to the control terminal; any hall call panel is provided with a display screen and a hall call button; the control terminal is respectively communicatively connected to the elevator doors of each floor, the first drive assembly, the second drive assembly, several telescopic pile groups and the limiter.

5. The automatic loading and unloading freight elevator according to claim 4, characterized in that: The control mechanism also includes security sensors installed on the elevator doors of each floor; the security sensors are communicatively connected to the control terminal; the monitoring area of ​​the security sensors covers the telescopic pile group and the elevator door, and is used to send an alarm signal to the control terminal when a human body is detected passing through the monitoring area, so that the control terminal controls the elevator door to close.

6. A control method for an automatic loading and unloading freight elevator, characterized in that: The invention comprises an automatic loading and unloading freight elevator; the automatic loading and unloading freight elevator comprises: a car arranged in a shaft, a first driving assembly for pulling the car to move in the shaft, a carrying platform arranged in the car, a roller installed at the bottom of the carrying platform, a second driving assembly for driving the carrying platform to enter and exit the car, a stopper arranged on the floor of the car, a plurality of track groups installed in the elevator lobby of each floor and used for docking the car, a plurality of telescopic pile groups installed in the elevator lobby of each floor and used for unloading goods from the carrying platform or loading goods onto the carrying platform, a shelf horizontally laid on the top of any of the telescopic pile groups, and a control mechanism for controlling various mechanisms; the control mechanism comprises a plurality of hall call panels and a control terminal installed in each hall call; the hall call panel comprises a display screen and a hall call button; the control terminal is respectively connected to the plurality of hall call panels, elevator doors on each floor, the first driving assembly, the second driving assembly, the plurality of telescopic pile groups and the stopper for communication; and the following automatic loading and unloading steps are also included: S1. Start the cargo transport mode: When the control terminal receives an instruction generated by a first touch operation of the hall call button on the hall call panel, the current working mode is switched to the cargo transport mode, and the display screen is controlled to display the first information indicating that the current operating mode is the cargo transport mode; S2, empty car jump floor movement: the control terminal controls the first drive assembly to drive the car to move in the hoistway to the elevator lobby where the hall call button is located, and makes the car floor level with the floor of the elevator lobby; and controls the elevator door to open; S3, the goods to be loaded are in place: after the elevator door is opened, the control terminal controls the telescopic pile group in the elevator lobby where the hall call button is located to extend synchronously to a position where the shelf loaded with goods is higher than the top surface of the carrying platform; S4, the empty loading platform is in place: after the elevator door is opened, the control terminal controls the limiter to unlock the roller of the loading platform; and controls the second drive assembly to drive the loading platform to move horizontally toward the elevator lobby, the loading platform moves out of the elevator car from the elevator door and continues to move along the track group installed in the elevator lobby to the area where the telescopic pile group is located; when the loading platform moves to the area where the telescopic pile group is located, the control terminal controls the second drive assembly to stop running, so that the loading platform stops in the space between the shelf and the floor of the elevator lobby; S5, loading: the control terminal controls the telescopic pile group to shorten synchronously so that the shelf loaded with goods is placed on the top surface of the carrying platform; S6, cargo recovery on the transport platform: the control terminal controls the second drive assembly to drive the transport platform to move horizontally toward the car, and the transport platform moves along the track group to the elevator door and then enters the car; S7, Carrying platform locking: After the carrying platform enters the car, the control terminal controls the limiter to lock the rollers that fix the carrying platform and controls the elevator door to close; S8, cargo leaping: the control terminal controls the first driving assembly to drive the car to move in the hoistway to the elevator lobby of the target floor for cargo delivery, and makes the car floor level with the floor of the elevator lobby; at the same time, controls the elevator door of the target floor to open; S9, the loading platform is in place: after the elevator door of the target floor is opened, the control terminal controls the limiter to unlock the roller of the loading platform, and controls the second drive assembly to drive the loading platform to move horizontally toward the elevator lobby of the target floor, and the loading platform carrying the shelf and the goods loaded on the shelf moves out of the elevator car from the elevator door and continues to move along the track group installed in the elevator lobby of the target floor to the area where the telescopic pile group is located; when the loading platform moves to the area where the telescopic pile group is located, the control terminal controls the second drive assembly to stop running, so that the part of the bottom of the shelf protruding from the edge of the loading platform is suspended above the telescopic pile group; S10, the goods to be unloaded are in place: the control terminal controls the telescopic pile group in the elevator lobby of the target floor to be synchronously extended to a position where the shelf loaded with goods is higher than the top surface of the carrying platform, so that the shelf is separated from the top surface of the carrying platform; S11, empty recovery of the carrying platform: the control terminal controls the second driving assembly to drive the carrying platform to move horizontally toward the car, until the carrying platform moves along the track group of the target layer to the elevator door and then enters the car; when the carrying platform enters the car, the control terminal controls the elevator door to close; S12, unloading: after the carrying platform is recovered to the car, the control terminal controls the telescopic pile group of the target layer to shrink synchronously until it is retracted below the floor of the elevator lobby, so that the shelf is placed on the floor of the elevator lobby to complete the unloading.

7. The control method of the automatic loading and unloading freight elevator according to claim 6, characterized in that: Also includes steps such as downloading: S13, start the normal mode: when the control terminal receives the instruction generated by the second touch operation of the hall call button on the hall call panel, the current working mode is switched to the normal mode, and the display screen is controlled to display the second information indicating that the current operating mode is the normal mode; S14, empty car jump-floor movement: the control terminal controls the first drive assembly to drive the car to move in the hoistway to the elevator lobby where the hall call button is located, and makes the top surface of the carrying platform level with the floor of the elevator lobby; and controls the elevator door to open; S15, Passengers enter the elevator: After the passengers enter the elevator car, the control terminal controls the elevator door to close; S16, passenger leap-floor movement: the control terminal controls the first drive assembly to drive the car to move in the hoistway to the elevator lobby of the passenger's target floor, and makes the top surface of the carrying platform level with the floor of the elevator lobby; at the same time, the elevator door is controlled to open; S17, passengers leaving the elevator: people leave the car; the control terminal controls the elevator door to close, completing the passenger loading.

8. The control method of the automatic loading and unloading freight elevator according to claim 6, characterized in that: The control mechanism also includes a security sensor installed on the elevator door of each floor; the security sensor is communicatively connected to the control terminal; the monitoring area of ​​the security sensor covers the telescopic pile group and the elevator door, and is used to send an alarm signal to the control terminal when a human body is detected passing through the monitoring area, so that the control terminal controls the elevator door to close; the control method also includes: when the control terminal is in a cargo transportation mode, the control terminal controls the security sensor to start; when the control terminal determines that there is a human body in the monitoring area based on the detection information detected and sent by the security sensor, the elevator door is controlled to close, and the first drive component, the second drive component and the telescopic pile group are controlled to stop working.

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