Telescopic plate goods shelf

Abstract

The utility model provides a telescopic plate goods shelf which comprises an automatic weighing system, a control combination and a goods shelf body and is characterized in that the goods shelf body comprises a front door, a bearing frame, a right side frame, a left side frame, a base and a top frame, and the automatic weighing system comprises a pressure type load sensor and a regulation and control flat plate and achieves automatic weighing and automatic generation of warehouse-in and warehouse-out reports. The control combination comprises a handle, a driving motor, a synchronous air cylinder and a remote controller, manual operation, automatic operation and remote control are matched for use, a base of the synchronous air cylinder is fixed to the upper end of the pressure type load sensor, and the synchronous air cylinder and the pressure type load sensor are arranged at the bottom of the front door. The regulation panel and the power distribution control box are fixed on the outer side of the right side frame. The utility model has the beneficial effects that the problems that automatic weighing and automatic generation of plate in-out warehouse reports cannot be realized, manual, automatic and remote control modes cannot be matched for operation, the rear side of the goods shelf cannot be reinforced by using an oblique beam and the like are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of storage plate devices, in particular to a telescopic plate shelf. Background Art

[0002] In modern enterprise production, the design concept of drawer-type plate racks is novel. It adopts a three-dimensional storage method, transforming the original stacked storage of plates that required a lot of space into layered storage, which greatly improves the utilization rate of space. Each drawer is designed with an independent track and can be operated separately to facilitate the retrieval of plates. At the same time, each drawer can only store plates of one specification, avoiding the occurrence of mixed storage, further improving the standardization of management, and is widely used. However, the drawer-type plate racks in the prior art cannot automatically weigh and automatically generate plate entry and exit reports when storing and retrieving plates. It is impossible to grasp the entry and exit and inventory status of the shelf plates in real time, and it is impossible to use manual, automatic and remote control methods to cooperate with each other. The shelves cannot be conveniently operated in various working environments, and the back side of the shelves cannot be reinforced with inclined beams, and the stability and safety of the shelves cannot be enhanced.

[0003] The invention patent with patent number ZL202322592647.5 discloses a "plate shelf with a stable structure". The utility model includes a mounting frame and a plurality of material racks slidably connected in the mounting frame, and also includes a door panel hinged at the front end of the mounting frame and a stable structure installed on the door panel. The stable structure includes a mounting plate fixedly connected to the door panel, a stable motor installed on the mounting plate, and a fixed frame fixedly connected to the mounting plate. The stable motor is connected to an eccentric wheel in a transmission manner. A lifting rod is slidably connected to the fixed frame. The top of the lifting rod is tangent to the eccentric wheel. The lower end of the lifting rod extends to the ground. A limit block is fixedly connected to the lifting rod. A spring is fixedly connected to the lower end surface of the limit block. A door panel motor is installed on the mounting frame. The door panel motor is connected to a first rotating rod in a transmission manner. The first rotating rod is rotatably connected to a second rotating rod. The second rotating rod is hinged to the door panel. The utility model can realize automatic opening and closing of doors and automatic fixing of door panels, which is convenient and safe. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, the utility model provides a telescopic plate shelf, which is equipped with an automatic weighing system, a control combination and an inclined beam, etc., so as to achieve automatic weighing, automatic generation of plate entry and exit reports, real-time grasp of the entry and exit and inventory status of the shelf plates, and the use of manual, automatic and remote control three modes of operation to cooperate with each other. The shelf can be conveniently operated in various working environments, and the inclined beam is used to reinforce the back side of the shelf, thereby enhancing the stability and safety of the shelf, and effectively solving the above-mentioned technical problems.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model to solve its technical problems is:

[0006] The telescopic plate shelf comprises an automatic weighing system, a control assembly and a shelf, and is characterized in that:

[0007] The shelf is composed of a front door, a load-bearing frame, a right frame, a left frame, a base and a top frame. The shelf is assembled into a rectangular parallelepiped structure. The front door is composed of a cross beam I, a cross beam II and a vertical beam I. The load-bearing frame is composed of a main cross beam I, a main cross beam II, a secondary cross beam and a guide wheel. The length of the cross beam II is greater than that of the main cross beam I.

[0008] The automatic weighing system includes a pressure load sensor and a control plate. The pressure load sensor is respectively installed at the bottom of the front door, and the control plate is fixedly installed on the outer side of the right frame.

[0009] The control combination includes a handle, a drive motor, a synchronous cylinder, an adjustment plate and a remote control. The handle is symmetrically mounted on both sides of the front side of the main cross beam II at the front end of the carrier frame, the drive motor is mounted on the inner end of the guide wheel, the synchronous cylinder is mounted on the upper end of the pressure load sensor, and the remote control is used to transmit signals to achieve the purpose of controlling the adjustment plate.

[0010] The right side frame is composed of a horizontal beam III, a horizontal beam IV and a vertical beam II, and the left side frame is composed of a horizontal beam V, a horizontal beam VI and a vertical beam III. Two oblique beams are fixed to the ends of the rear end vertical beam II and the rear end vertical beam III in their diagonal directions respectively through fixing plates.

[0011] The lower end of the pressure type load sensor is equipped with a support foot, and the upper end of the pressure type load sensor is fixedly connected to a synchronous cylinder. The base of the synchronous cylinder is fixed on the outer side wall of the vertical beam Ⅰ at the four corner positions of the front door. The control flat panel transmits data through the pressure type load sensor to achieve the purpose of automatic weighing and automatic generation of warehouse in and out reports.

[0012] The control combination achieves the purpose of using three operations, namely manual, automatic and remote control, through the mutual cooperation of the handle, the control tablet and the remote control.

[0013] The base is composed of a main crossbeam III and a secondary crossbeam. The middle positions of the left and right ends of the base are both equipped with a concave structure. The four corner positions of the base and the outer ends of the concave structure are correspondingly fixedly connected to the crossbeam III and the crossbeam V at the lower end through a fixing plate. The top frame is composed of a main crossbeam IV and a secondary crossbeam. The middle positions of the left and right ends of the top frame are both equipped with a concave structure. The four corner positions of the top frame and the outer ends of the concave structure are correspondingly fixedly connected to the crossbeam III and the crossbeam V at the upper end through a fixing plate. The crossbeam IV is horizontally arranged between the two crossbeams III.

[0014] The front door is assembled as a double-opening structure, and the outer side of the front door is rotationally connected to the vertical beam II and the vertical beam III through a rotation limit device. The rotation limit device consists of an upper support block, a lower support block, a rotation block and a support shaft. The distance between the upper support block and the lower support block is greater than the thickness of the rotation block. The upper support block and the lower support block are used to fix the support shaft, and the inner side of the rotation block is rotationally connected to the support shaft.

[0015] The crossbeam VI is horizontally arranged between two crossbeams V. The upper surfaces of the crossbeams IV and VI are equipped with rack-shaped guide rails. The crossbeams IV and VI are equipped with the same number, and the corresponding crossbeams IV and VI are on the same horizontal line.

[0016] Guide wheels are installed on the outer sides of the front and rear parts of the main cross beams I on the left and right sides of the carrier frame. The guide wheels are slidably connected to the guide rails. The grooves of the guide wheels are matched with the protrusions of the guide rails. The outer surfaces of the guide wheels are assembled in the shape of gears. The gear shape of the guide wheels is meshed with the rack shape of the guide rails. When the front door is in a fully open state, the corresponding cross beams IV and VI are in the same straight line on the guide rails.

[0017] The right side frame is fixedly equipped with a power distribution control box, and the pressure load sensor, the regulating plate, the drive motor and the synchronous cylinder are electrically connected to the power distribution control box through cables.

[0018] The pressure load sensor is connected to the regulating plate through a feeder, and the power distribution control box is connected to the regulating plate through a feeder.

[0019] A marking insertion area is provided on the main crossbeam II at the front end of each load-bearing frame.

[0020] The beneficial effects of the utility model are:

[0021] The utility model is provided with an automatic weighing system, and corresponding pressure load sensors, supporting feet and regulating plates, etc., which can automatically weigh and automatically generate reports on the entry and exit of plates, and grasp the entry and exit and inventory status of shelf plates in real time, effectively solving the problem that automatic weighing and automatic generation of reports on the entry and exit of plates can not be achieved, and the entry and exit and inventory status of shelf plates cannot be grasped in real time.

[0022] The utility model is provided with a control combination, as well as corresponding handles, drive motors, synchronous cylinders and regulating plates, etc., which can achieve the mutual coordination of operations using manual, automatic and remote control modes, and can conveniently operate the shelves in various working environments, effectively solving the problem that the three modes of manual, automatic and remote control cannot be coordinated with each other and the shelves cannot be conveniently operated in various working environments.

[0023] The utility model is provided with an inclined beam, and corresponding vertical beams II and III, etc., which can use the inclined beam to reinforce the rear side of the shelf, thereby enhancing the stability and safety of the shelf, and effectively solves the problem that the inclined beam cannot be used to reinforce the rear side of the shelf and the stability and safety of the shelf cannot be enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Attached Figure 1 It is a structural schematic diagram of the utility model;

[0025] Attached Figure 2 It is a structural schematic diagram of the automatic weighing system of the utility model;

[0026] Attached Figure 3 It is a rear view structural schematic diagram of the utility model;

[0027] Attached Figure 4 It is a right view structural schematic diagram of the utility model;.

[0028] Legend:

[0029] 1. Automatic weighing system, 2. Pressure load cell, 3. Support legs, 4. Control plate, 5. Control combination, 6. Handle, 7. Drive motor, 8. Synchronous cylinder, 9. Shelf, 10. Front door, 11. Crossbeam I, 12. Crossbeam II, 13. Vertical beam I, 14. Carrying frame, 15. Main crossbeam I, 16. Main crossbeam II, 17. Secondary crossbeam, 18. Guide wheel, 19. Right side frame, 20. Crossbeam III, 21. Crossbeam IV, 22. Vertical beam II, 23. Left side frame, 24. Crossbeam V, 25. Crossbeam VI, 26. Vertical beam III, 27. Base, 28. Main crossbeam III, 29. Top frame, 30. Main crossbeam IV, 31. Diagonal beam, 32. Guide rail, 33. Rotation limit device, 34. Upper support block, 35. Lower support block, 36. Rotating block, 37. Support shaft, 38. Power distribution control box, 39. Label insertion area. DETAILED DESCRIPTION

[0030] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 The utility model is further described in detail with examples so that the public can better understand the implementation method of the utility model. The specific implementation method of the utility model is as follows:

[0031] The telescopic plate shelf comprises an automatic weighing system 1, a control assembly 5 and a shelf 9, and is characterized in that:

[0032] The shelf is composed of a front door 10, a load-bearing frame 14, a right side frame 19, a left side frame 23, a base 27 and a top frame 29. The shelf 9 is assembled into a rectangular parallelepiped structure. The front door 10 is composed of a cross beam Ⅰ11, a cross beam Ⅱ12 and a vertical beam Ⅰ13. The load-bearing frame 14 is composed of a main cross beam Ⅰ15, a main cross beam Ⅱ16, a secondary cross beam 17 and a guide wheel 18. The length of the cross beam Ⅱ12 is greater than the length of the main cross beam Ⅰ15.

[0033] The automatic weighing system 1 includes a pressure load sensor 2 and a control plate 4. The pressure load sensor 2 is respectively mounted on the bottom of the front door 10, and the control plate 4 is fixedly mounted on the outer side of the right side frame 19.

[0034] The control combination 5 includes a handle 6, a drive motor 7, a synchronous cylinder 8, an adjustment plate 4 and a remote control. The handle 6 is symmetrically mounted on both sides of the front side of the main cross beam Ⅱ16 at the front end of the carrier frame 14, the drive motor 7 is mounted on the inner end of the guide wheel 18, and the synchronous cylinder 8 is mounted on the upper end of the pressure load sensor 2. The remote control is used to transmit signals to achieve the purpose of controlling the adjustment plate 4.

[0035] The right side frame 19 is composed of a cross beam III 20, a cross beam IV 21 and a vertical beam II 22, and the left side frame 23 is composed of a cross beam V 24, a cross beam VI 25 and a vertical beam III 26. The ends of the rear end vertical beam II 22 and the rear end vertical beam III 26 are respectively fixed with two oblique beams 31 in their diagonal directions through fixing plates.

[0036] The lower end of the pressure type load sensor 2 is equipped with a support foot 3, and the upper end of the pressure type load sensor 2 is fixedly connected to a synchronous cylinder 8. The base of the synchronous cylinder 8 is fixed on the outer wall of the vertical beam Ⅰ13 at the four corners of the front door 10. The control plate 4 transmits the data through the pressure type load sensor 2 to achieve the purpose of automatic weighing and automatic generation of entry and exit reports. The pressure type load sensor 2 automatically weighs the plates entering and leaving the warehouse, and transmits the weight to the control plate 4. The control plate 4 records the entry and exit data in real time, automatically generates and updates the entry and exit reports, and grasps the entry and exit and inventory status of the plates in real time, ensuring the freshness of the data.

[0037] The control assembly 5 achieves the purpose of using three operations, namely manual, automatic and remote control, through the cooperation of the handle 6, the control tablet 4 and the remote control. The three operations can be used separately or in combination with each other. It has the advantages of simple and convenient operation, strong versatility, improved work efficiency and no distance restriction in various working environments.

[0038] The base 27 is composed of a main crossbeam III 28 and a secondary crossbeam 17. The middle positions of the left and right ends of the base 27 are both equipped with a concave structure. The four corner positions of the base 27 and the outer ends of the concave structure are correspondingly fixedly connected to the crossbeam III 20 and the crossbeam V 24 at the lower end through a fixing plate. The top frame 29 is composed of a main crossbeam IV 30 and a secondary crossbeam 17. The middle positions of the left and right ends of the top frame 29 are both equipped with a concave structure. The four corner positions of the top frame 29 and the outer ends of the concave structure are correspondingly fixedly connected to the crossbeam III 20 and the crossbeam V 24 at the upper end through a fixing plate.

[0039] The front door 10 is assembled as a double-opening structure, and the outer side of the front door 10 is rotationally connected to the vertical beam II 22 and the vertical beam III 26 respectively through a rotation limit device 33. The rotation limit device 33 is composed of an upper support block 34, a lower support block 35, a rotation block 36 and a support shaft 37. The distance between the upper support block 34 and the lower support block 35 is greater than the thickness of the rotation block 36. The upper support block 34 and the lower support block 35 are used to fix the support shaft 37, and the inner side of the rotation block 36 is rotationally connected to the support shaft 37.

[0040] The front and rear outer sides of the main cross beams Ⅰ15 on the left and right sides of the carrier frame 14 are equipped with guide wheels 18, and the guide wheels 18 are slidably connected to the guide rails 32. The grooves of the guide wheels 18 are matched with the protrusions of the guide rails 32. The outer surface of the guide wheel 18 is assembled in a gear shape, and the gear shape of the guide wheel 18 is meshed with the rack shape of the guide rails 32. When the front door 10 is in a fully open state, the corresponding cross beams Ⅳ21 and Ⅵ25 are in the same straight line on the guide rails 32.

[0041] The crossbeam IV21 is horizontally arranged between two crossbeams III20, and the crossbeam VI25 is horizontally arranged between two crossbeams V24. The upper surfaces of the crossbeams IV21 and VI25 are assembled with rack-shaped guide rails. The crossbeams IV21 and VI25 are assembled in the same number, and the corresponding crossbeams IV21 and VI25 are on the same horizontal line.

[0042] The right side frame 19 is fixedly equipped with a power distribution control box 38, and the pressure load sensor 2, the regulating plate 4, the drive motor 7 and the synchronous cylinder 8 are electrically connected to the power distribution control box 38 through cables.

[0043] The pressure load sensor 2 is connected to the control plate 4 via a feeder, and the power distribution control box 38 is connected to the control plate 4 via a feeder.

[0044] A marking insertion area 39 is provided on the main cross beam II 16 at the front end of each carrier frame 14 .

[0045] The working principle and working process of the utility model are as follows: Specific embodiments

[0046] Before using the telescopic plate shelf, first conduct a comprehensive inspection of the shelf to ensure that there are no abnormalities in various equipment, and each cable and feeder connection is stable. The staff manually pulls open the front door 10 of the split structure, and the front door 10 drives the rotating block 36 to rotate on the lower support block 35 through the support shaft 37. When the two front doors 10 rotate forward 90°, under the limit of the lower support block 35, the two front doors 10 cannot continue to rotate. The lower support block 35 fixes the two front doors 10 relatively through the friction force of the rotating block 36. The corresponding crossbeam IV 21 and crossbeam VI 25 of each supporting bearing frame 14 are on the same horizontal line. The staff connects the power distribution control box 38 to the mains, turns on the switch button, and all electrical equipment of the telescopic plate shelf enters the waiting state;

[0047] The staff presses the virtual button for lowering the synchronous cylinder 8 on the screen of the control panel 4, and the control panel 4 sends a command to the controller in the power distribution control box 38, and the four synchronous cylinders 8 start working at the same time, pushing the pressure load sensor 2 and the support legs 3 to move downward. After the four support legs 3 touch the ground and ensure that the two front doors 10 are firmly fixed and supported, the virtual button for adjusting the synchronous cylinder 8 is released. The staff can hold the handle 6 by hand and pull the support rack 14 where the plates need to be stored forward with force, or press the virtual button corresponding to the support rack 14 where the plates need to be stored on the screen of the control panel 4, or use the remote control to press the corresponding button on the remote control. The transmitter in the remote controller sends a command to the control panel 4, and the control panel 4 sends a command to the controller in the power distribution control box 38. After receiving the command, each device starts or stops working. The three operations of manual, automatic and remote control in the above control combination 5 can be used separately or in combination with each other. It has the advantages of simple and convenient operation, strong versatility, improved work efficiency, and no distance restriction in various working environments. In this specific embodiment, we use the operation of the control panel 4 to automatically control the telescopic plate shelf. For the convenience of description, we name the carriers 14 from bottom to top: the first carrier 14, the second carrier 14, and so on;

[0048] The staff enters the name, specification and weight of each plate of the preset type that the telescopic plate shelf needs to store into the control panel 4 in advance. According to the principle that one load rack 14 can only store plates of one specification, the staff enters the first load rack 14 storing plywood with a specification of 1220mm*2440mm*12mm and a weight of 22.8kg into the control panel 4, and the second load rack 14 storing steel plates with a specification of 1000mm*2000mm*2mm and a weight of 31.4kg, and so on. The staff inserts the prepared labels into the corresponding identification insertion area 39, and can also query them in the control panel 4 at the same time;

[0049] During operation, the telescopic plate shelf needs to continue to store three steel plates with specifications of 1000mm*2000mm*2mm and a weight of 31.4kg. The staff only needs to enter keywords in the control tablet 4, find and select the correct option, and enter the number of warehouses. Click the warehouse virtual button, and the control tablet 4 starts to send information to the controller according to the entered information and related information. The controller controls the two drive motors 7 corresponding to the second carrier 14 to start working, and the drive guide wheel 18 rotates on the guide rail 32, driving the second carrier 14 to move forward on the corresponding beam IV21 and beam VI25. The staff pre-enters the forward and backward movement distance of the carrier 14. When the second carrier 14 moves completely outside the shelf 9 and reaches the forward movement distance, the controller controls the two drive motors 7 to stop working, and the second carrier 14 moves completely into the beams II12 at both ends. The staff uses a crane to lift the steel plates one by one into the second carrier 14, and the support legs 3 are subjected to pressure, which is transmitted to the pressure load sensor 2. The pressure load sensor 2 is According to the pressure, a corresponding electrical signal is generated, and a standard signal is obtained after circuit processing and amplification, which is transmitted to the control system for calculation and processing to achieve the purpose of automatic weight measurement. Each time a steel plate is placed in the second carrier 14, the second carrier 14 will add 31.4 kg of weight once, and the control plate 4 will generate a record of storage. After the second carrier 14 is weighted three times, the number recorded by the control plate 4 reaches the preset information, and the control plate 4 sends information to the controller. The controller controls the two drive motors 7 corresponding to the second carrier 14 to start working, and the drive guide wheel 18 rotates on the guide rail 32, driving the second carrier 14 to move backward from the two end beams II 12 to the corresponding beams IV 21 and beams VI 25. When the second carrier 14 moves completely into the shelf 9 and reaches the backward movement distance, the controller controls the two drive motors 7 to stop working, and the work of warehousing three steel plates is completed. The control plate 4 automatically generates and updates the plate entry and exit report at the same time, and grasps the entry and exit and inventory of the shelf plates in real time, ensuring the freshness of the data;

[0050] After the warehousing work is completed, the staff presses the virtual button of the lifting synchronous cylinder 8 on the screen of the control tablet 4, and the control tablet 4 sends a command to the controller in the distribution control box 38. The four synchronous cylinders start working at the same time, lifting the pressure load sensor 2 and the support legs 3 to move upward. After the four support legs 3 leave the ground and return to their original positions, the virtual button of the lifting synchronous cylinder 8 is released, the front door 10 is closed, and all the warehousing work is completed.

[0051] The outbound operation of the plates in the telescopic plate rack is basically the same as the inbound operation, except that each time the crane lifts out a plate, the load frame 14 will reduce the weight of a plate, and the regulating plate 4 will generate a record of outbound operation. When the preset outbound quantity is reached, the outbound operation is completed, and the regulating plate 4 will automatically generate a plate inbound and outbound report.

Claims

1. A telescopic plate rack, comprising an automatic weighing system (1), a control assembly (5) and a rack (9), characterized in that: The shelf (9) is composed of a front door (10), a bearing frame (14), a right side frame (19), a left side frame (23), a base (27) and a top frame (29); the shelf (9) is arranged as a rectangular parallelepiped structure; the front door (10) is composed of a cross beam I (11), a cross beam II (12) and a vertical beam I (13); the bearing frame (14) is composed of a main cross beam I (15), a main cross beam II (16), a secondary cross beam (17) and a guide wheel (18); the length of the cross beam II (12) is greater than the length of the main cross beam I (15); The automatic weighing system (1) comprises a pressure load sensor (2) and a control plate (4), wherein the pressure load sensor (2) is respectively arranged at the bottom of the front door (10), and the control plate (4) is fixedly arranged on the outside of the right side frame (19); The control assembly (5) comprises a handle (6), a drive motor (7), a synchronous cylinder (8), an adjustment plate (4) and a remote control, wherein the handle (6) is symmetrically arranged on both sides of the front side of the main cross beam II (16), the drive motor (7) is arranged at the inner end of the guide wheel (18), the synchronous cylinder (8) is arranged at the upper end of the pressure load sensor (2), and the remote control is used to transmit a signal to achieve the purpose of controlling the adjustment plate (4).

2. A telescopic plate shelf as claimed in claim 1, characterized in that: The right side frame (19) is composed of a cross beam III (20), a cross beam IV (21) and a vertical beam II (22), and the left side frame (23) is composed of a cross beam V (24), a cross beam VI (25) and a vertical beam III (26), and two oblique beams (31) are fixed to the ends of the rear end vertical beam II (22) and the rear end vertical beam III (26) in the diagonal direction thereof through fixing plates.

3. A telescopic plate shelf as claimed in claim 1, characterized in that: The lower end of the pressure load sensor (2) is provided with a support foot (3), and the upper end of the pressure load sensor (2) is fixedly connected to a synchronous cylinder (8), and the base of the synchronous cylinder (8) is fixed to the outer wall of the vertical beam I (13) at the four corner positions of the front door (10). The control plate (4) uses the data transmitted by the pressure load sensor (2) to achieve the purpose of automatic weighing and automatic generation of warehouse in and out reports.

4. A telescopic plate shelf as claimed in claim 1, characterized in that: The control assembly (5) achieves the purpose of using three types of operations: manual, automatic and remote control, through the cooperation of the handle (6), the control panel (4) and the remote control.

5. The telescopic plate shelf according to claim 1, characterized in that: The base (27) is composed of a main crossbeam III (28) and a secondary crossbeam (17); the middle positions of the left and right ends of the base (27) are both arranged as concave structures; the four corner positions of the base (27) and the outer ends of the concave structures are correspondingly fixedly connected to the crossbeam III (20) and the crossbeam V (24) at the lower end via a fixing plate; the top frame (29) is composed of a main crossbeam IV (30) and a secondary crossbeam (17); the middle positions of the left and right ends of the top frame (29) are both arranged as concave structures; the four corner positions of the top frame (29) and the outer ends of the concave structures are correspondingly fixedly connected to the crossbeam III (20) and the crossbeam V (24) at the upper end via a fixing plate; The front door (10) is configured as a split-type structure. The outer side of the front door (10) is rotatably connected to the vertical beam II (22) and the vertical beam III (26) respectively through a rotation limit device (33). The rotation limit device (33) is composed of an upper support block (34), a lower support block (35), a rotation block (36) and a support shaft (37). The distance between the upper support block (34) and the lower support block (35) is greater than the thickness of the rotation block (36). The upper support block (34) and the lower support block (35) are used to fix the support shaft (37). The inner side of the rotation block (36) is rotatably connected to the support shaft (37).

6. A telescopic plate shelf as claimed in claim 2, characterized in that: The crossbeam IV (21) is horizontally arranged between two crossbeams III (20), and the crossbeam VI (25) is horizontally arranged between two crossbeams V (24). The upper surfaces of the crossbeams IV (21) and the crossbeams VI (25) are arranged as rack-shaped guide rails (32). The crossbeams IV (21) and the crossbeams VI (25) are arranged in the same number, and the corresponding crossbeams IV (21) and the crossbeams VI (25) are on the same horizontal line.

7. The telescopic plate shelf according to claim 1, characterized in that: Guide wheels (18) are provided on the outer sides of the front and rear parts of the main cross beams I (15) on the left and right sides of the support frame (14). The guide wheels (18) are slidably connected to the guide rails (32). The grooves of the guide wheels (18) are matched with the protrusions of the guide rails (32). The outer surface of the guide wheels (18) is set to a gear shape. The gear shape of the guide wheels (18) is meshed with the rack shape of the guide rails (32). When the front door (10) is in a fully opened state, the corresponding cross beams IV (21) and VI (25) are on the same straight line on the guide rails (32).

8. The telescopic plate shelf according to claim 1, characterized in that: The right side frame (19) is fixedly provided with a power distribution control box (38), and the pressure load sensor (2), the control plate (4), the drive motor (7) and the synchronous cylinder (8) are electrically connected to the power distribution control box (38) via cables.

9. The telescopic plate shelf according to claim 1, characterized in that: The pressure load sensor (2) is connected to the regulating plate (4) via a feeder line.

10. The telescopic plate shelf according to claim 8, characterized in that: The power distribution control box (38) is connected to the control panel (4) via a feeder line.

11. The telescopic plate shelf according to claim 1, characterized in that: A marking insertion area (39) is provided on the front main crossbeam II (16) of each bearing frame (14).

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