Lifting type anti-pinch back hanging unit

Abstract

The utility model discloses a lift type anti-pinch back hanging unit, which relates to the technical field of laboratory accessories and comprises an outer cabinet body, an inner cabinet body, a lift control system and an anti-pinch control system, the lift control system controls the inner cabinet body to slide up and down relative to the outer cabinet body, and a detection element is arranged at the upper end of the outer cabinet body close to an opening. The detection element is connected with the lifting control system, when the detection element detects that a human body is close to the opening area, the detection element sends a signal to the lifting control system, when the lifting control system receives the signal, the lifting control system stops working, the inner cabinet body stops sliding, the purpose of preventing a moving part from being clamped is achieved, and the detection accuracy is high; the device can be triggered when a human body or an object is not clamped, so that the human body can be effectively prevented from being clamped or the object can be effectively prevented from being damaged; the mounting structure on the outer cabinet body is detachably connected with the experiment table, so that split transportation, daily maintenance and split purchase by a user according to needs are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory accessories, in particular to a hanging unit with a lifting anti-pinch function. Background Art

[0002] Building an innovative country and a world science and technology power has always been one of the important development goals of our country. The construction and development of laboratories are important driving forces. In a laboratory, an experimental table is a common piece of equipment. The experimental table stores various experimental instruments for operators to operate. During the experiment, sufficient space is required to complete various steps such as the experiment and data recording to ensure that they do not interfere with each other. A lifting experimental table generally includes a moving part and a fixed part. Its hidden storage can ensure the safe storage of the stored experimental utensils and can make up for the lack of usable space sometimes.

[0003] In the prior art, the lifting experimental table is integrated, which is not convenient for transportation and maintenance. Moreover, when an operator takes out an experimental utensil, he will put his hand into the moving part of the lifting experimental table. If the moving part moves at this time, a shearing force will be generated with the fixed part, causing injury to the human body.

[0004] Therefore, how to solve the problem that the lifting experimental table in the prior art is prone to cause pinching during use has become an important technical problem to be solved by those skilled in the art. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the defects and deficiencies existing in the prior art, and to provide a hanging unit with a lifting anti-pinch function.

[0006] The technical solution adopted by the utility model is as follows:

[0007] The present application provides a hanging unit with a lifting anti-pinch function, including:

[0008] An outer cabinet, on the side of which there is an installation structure for connecting with an experimental table, and an opening is provided at the upper end of the outer cabinet;

[0009] An inner cabinet, which can slide up and down relative to the outer cabinet, and has a first position located inside the outer cabinet and a second position extending out of the outer cabinet through the opening;

[0010] A lifting control system, which is connected to the inner cabinet and is used to control the movement of the inner cabinet between the first position and the second position;

[0011] The pinch protection control system includes a detection element installed on the outer cabinet near the opening, and the detection element is connected to the lifting control system. The detection element is used to detect whether a human body approaches the opening area. When the detection element detects that a human body approaches the opening area, the detection element sends a signal to the lifting control system. When the lifting control system receives the signal, the lifting control system stops working.

[0012] Preferably, the heights of the upper ends of the side plates on both sides of the outer cabinet are higher than the height of the upper end of the front side plate of the outer cabinet, so that a detection area is formed above the front side plate of the outer cabinet between the side plates on both sides of the outer cabinet, and the detection element is installed at a position corresponding to the detection area on the side plates on both sides of the outer cabinet.

[0013] Preferably, a limiting portion is formed by a convex on one side of the upper end of the inner cabinet. When the inner cabinet is in the first position, the limiting portion at the upper end of the inner cabinet forms an abutting limit with at least one side plate upper end of the outer cabinet.

[0014] Preferably, the heights of the upper ends of the side plates on both sides of the outer cabinet are higher than the height of the upper end of the front side plate of the outer cabinet. A limiting portion is formed by a convex on the side of the upper end of the inner cabinet corresponding to the front side plate of the outer cabinet. The outer side surface of the limiting portion is inclined inwards to form a first inward inclined surface, and the upper end surface of the front side plate of the outer cabinet is inclined downwards to form a second inward inclined surface. A detection area with a triangular cross-section is formed between the first inward inclined surface and the second inward inclined surface.

[0015] Preferably, the detection element is arranged near the area where the first inward inclined surface and the second inward inclined surface meet.

[0016] Preferably, an equipment area is formed below the inner cabinet in the outer cabinet, and the lifting control system is installed in the equipment area. The outer cabinet is provided with a first panel corresponding to the area where the inner cabinet is located at the first position and a second panel corresponding to the equipment area on the side surface. The second panel is detachably connected to the outer cabinet.

[0017] Preferably, the experimental table has a tabletop, and a cavity is below the tabletop. The highest point of the second panel is lower than the bottom surface height of the tabletop of the experimental table.

[0018] Preferably, at least a pair of drawer installation side plates are arranged at a certain interval in the inner cabinet. At least a pair of drawer guide rails are formed on the opposite side surfaces of the drawer installation side plates, and a drawer is slidably installed in the drawer guide rails.

[0019] Preferably, the drawer guide rail is a groove provided on the side plate for installing the drawer, and two sides of the drawer are protruded to form sliding strips inserted into the drawer guide rail; the inner height of the drawer guide rail is adapted to the sliding strips so that the sliding strips can slide into / out of the drawer guide rail; a plurality of the drawer guide rails are provided on the side plate for installing the drawer, and a positioning groove is formed by downward depression at the bottom of the drawer guide rail. A positioning protrusion matching the positioning groove is provided on the sliding strip. Under the action of the gravity of the drawer itself, the positioning protrusion is inserted into the positioning groove to form a limit for preventing the drawer from sliding out.

[0020] Preferably, the side plate for installing the drawer has at least two pairs of side plates for installing the drawer, and two of the side plates for installing the drawer are detachably connected back to back.

[0021] The beneficial effects of the present utility model are as follows:

[0022] The lifting control system controls the inner cabinet body to slide up and down relative to the outer cabinet body. A detection element is provided near the opening at the upper end of the outer cabinet body, and the detection element is connected to the lifting control system. When the detection element detects that a human body approaches the opening area, the detection element sends a signal to the lifting control system. When the lifting control system receives the signal, the lifting control system stops working and the inner cabinet body stops sliding, achieving the purpose of preventing the moving parts from pinching. The detection accuracy is high, and it can be triggered before the human body or object is pinched, effectively avoiding the human body from being pinched or the object from being damaged; the outer cabinet body is detachably connected to the experimental table through the installation structure on the outer cabinet body, which is convenient for disassembly and transportation, daily maintenance and separate procurement by users according to their needs. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, obtaining other drawings based on these drawings still belongs to the scope of the present utility model.

[0024] Figure 1 It is a schematic structural diagram of the back-hanging unit of the lifting anti-pinch hand in an embodiment of the present utility model, where the back-hanging unit is in the first position;

[0025] Figure 2 It is a schematic structural diagram of the back-hanging unit of the lifting anti-pinch hand in an embodiment of the present utility model, where the back-hanging unit is in the second position;

[0026] Figure 3 It is a schematic structural diagram inside the back-hanging unit of a lifting anti-pinch hand in an embodiment of the present utility model;

[0027] Figure 4 is Figure 1 The enlarged structural schematic diagram of position A in

[0028] Figure 5 is the matching structural schematic diagram of the guide rail and the drawer in an embodiment of the present utility model;

[0029] Figure 6 is Figure 2 The enlarged structural schematic diagram of position B in

[0030] Figure 7 is the structural schematic diagram of the lifting control system in an embodiment of the present utility model;

[0031] Figure 8 is the structural schematic diagram of the drawer mounting side plate in an embodiment of the present utility model;

[0032] In the figure, 1 - outer cabinet, 2 - mounting structure, 3 - opening, 4 - inner cabinet, 5 - detection element, 6 - side plates on both sides of the outer cabinet, 7 - front side plate of the outer cabinet, 8 - limiting part, 9 - first inclined surface, 10 - second inclined surface, 11 - first panel, 12 - second panel, 13 - drawer mounting side plate, 131 - first drawer mounting side plate, 132 - second drawer mounting side plate, 14 - guide rail, 15 - drawer, 16 - sliding strip, 17 - positioning groove, 18 - positioning protrusion, 19 - driving motor, 20 - driving rod, 21 - bearing seat, 22 - lead screw, 23 - sleeve, 24 - upper support plate, 25 - fixing plate, 26 - support seat, 27 - lower support plate, 28 - strip hole, 29 - circular hole, 30 - mounting hole, 31 - mounting block. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0034] It should be noted that all the expressions using "first" and "second" in the embodiments of the present utility model are used to distinguish two entities or parameters with the same name but different, so it can be seen that "first" and "second" are only for the convenience of expression and should not be construed as a limitation to the embodiments of the present utility model. This will not be elaborated one by one in the subsequent embodiments.

[0035] The terms of direction and position mentioned in the present utility model, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "top", "bottom", "side", etc., are only with reference to the direction or position of the accompanying drawings. Therefore, the terms of direction and position used are for explaining and understanding the present utility model, rather than a limitation to the protection scope of the present utility model.

[0036] Such as Figures 1 to 8As shown in the figure, in an embodiment of the present utility model, a lifting anti-pinch back-mounted unit includes an outer cabinet 1, an inner cabinet 4, a lifting control system, and an anti-pinch control system. Specifically, an installation structure 2 for connecting to an experimental table is provided on the side of the outer cabinet 1, and an opening 3 is provided on the upper end surface of the outer cabinet 1. It can be understood that the back-mounted unit is an experimental table accessory unit, which is located on the back of the experimental table after installation. The back-mounted unit can integrate functions such as power access, storage, dust suction, and lighting required for common experiments, and can be configured according to needs. When an operator normally uses the experimental table from the front, the back-mounted unit can be directly applied.

[0037] Specifically, in this embodiment, the installation structure 2 is a plurality of installation holes. The upper part of the installation hole is a strip hole 28, and the lower part is a circular hole 29. The diameter of the circular hole 29 is larger than the width of the strip hole 28. Before fixing, bolts are pre-installed on the back of the experimental table in advance. The head size of the bolt is smaller than the diameter of the circular hole 29 so that it can pass through the circular hole 29 and larger than the width of the strip hole 28 so that it cannot pass through the strip hole 28. When fixing, directly align the circular hole 29 of the back-mounted unit with the installed bolt, and then it can all pass through the circular hole 29. Then, lower the back-mounted unit so that the back-mounted unit hangs down under the action of gravity and the bolt cooperates with the strip hole 28. Alternatively, the installation structure 2 can also adopt other common connection structures, such as a snap structure.

[0038] Furthermore, the inner cabinet 4 of this embodiment can slide up and down relative to the outer cabinet 1, and has a first position and a second position relative to the outer cabinet 1. When the inner cabinet 4 slides relative to the outer cabinet 1 to the first position, the surface of the inner cabinet 4 is flush with the surface of the outer cabinet 1. When the inner cabinet 4 slides relative to the outer cabinet 1 to the second position, at least part of the inner cabinet 4 extends out of the surface of the outer cabinet 1. It should be noted that the above-mentioned "first position" is Figure 1 the position state of the inner cabinet 4 inside the outer cabinet 1, and the above-mentioned "second position" is Figure 2 the position state where the inner cabinet 4 is exposed outside the outer cabinet 1.

[0039] Specifically, the lifting control system is connected to the inner cabinet 4 and is used to control the movement of the inner cabinet 4 between the first position and the second position. Since an opening 3 for the inner cabinet 4 to pass through is provided on the upper end surface of the outer cabinet 1, the inner cabinet 4 can extend above the surface of the outer cabinet 1 through the opening 3. Thus, an operator can take experimental utensils from the operation area of the extended inner cabinet 4 for experiments. After the experiment is over, control the inner cabinet 4 to move back until the surface of the inner cabinet 4 is flush with the surface of the outer cabinet 1, keeping the laboratory clean and reducing the cleaning frequency of the inner cabinet 4.

[0040] As an alternative implementation, as Figure 7As shown in the figure, the lifting control system can be of the motor-screw type, including a driving motor 19, a driving rod 20, a bearing block 21, a screw rod 22 and a sleeve 23. The top end of the sleeve 23 is connected to the bottom of the inner cabinet 4 through an upper support plate 24. The screw rod 22 is located inside the sleeve 23. The bottom end of the screw rod 22 is supported on the bearing block 21 and is connected to the driving motor 19 through the driving rod 20. The driving motor 19 is connected to the lower support base 26 through a fixing plate 25. The bearing block 21 is connected to the outer cabinet 1 through a lower support plate 27.

[0041] Specifically, driven by the driving motor 19, the screw rod 22 is driven to rotate through the driving rod 20. The sleeve 23 cooperates with the screw rod 22, and the sleeve 23 can achieve lifting. Since the top end of the sleeve 23 is connected to the bottom of the inner cabinet 4, the lifting of the inner cabinet 4 is driven. Of course, other conventional lifting drive components can also be selected for the present invention, such as hydraulic type or gear type.

[0042] In a preferred embodiment, the anti-pinch control system includes a detection element 5 installed on the outer cabinet 1 near the opening 3. The detection element 5 is connected to the lifting control system. The detection element 5 is used to detect whether a human body approaches the area of the opening 3. When the detection element 5 detects that a human body approaches the area of the opening 3, the detection element 5 sends a signal to the lifting control system. When the lifting control system receives the signal, the lifting control system stops working and the inner cabinet 4 stops sliding.

[0043] As an alternative implementation, the detection element 5 can be an infrared light sensor. For example, an induction device composed of an infrared emitter and an infrared receiver can be used. In the normal state, the infrared emitter and the infrared receiver maintain the connection detection of the infrared signal. When a human body approaches the area of the opening 3, the infrared signal connection between the infrared emitter and the infrared receiver is blocked. At this time, the signal is transmitted to the lifting control system, and the lifting control system quickly stops working, so that the inner cabinet 4 stops lifting to achieve the effect of preventing pinching. Of course, other anti-pinch detection methods can also be selected for the present invention, such as a distance sensor.

[0044] In a preferred embodiment, the height of the upper ends of the two side plates 6 of the outer cabinet 1 is higher than the height of the upper end of the front side plate 7 of the outer cabinet 1, so that a notch lower than the upper end surface of the outer cabinet is formed above the front side plate 7 of the outer cabinet 1 between the two side plates 6 of the outer cabinet 1. This notch constitutes a detection area, and the detection element 5 is installed at a position corresponding to the detection area on the two side plates 6 of the outer cabinet 1.

[0045] In a preferred embodiment, a limiting portion 8 is formed by a convexity on one side of the upper end of the inner cabinet 4. When the inner cabinet 4 is in the first position, the limiting portion 8 at the upper end of the inner cabinet 4 forms an abutting limit with at least one side plate upper end of the outer cabinet 1. The limiting portion 8 can be set on one side or multiple sides, mainly to form a limiting effect to prevent the inner cabinet 4 from descending and can also play a supporting role when the motor is not working.

[0046] In a preferred embodiment, the height of the upper ends of the two side plates 6 on both sides of the outer cabinet 1 is higher than the height of the upper end of the front side plate 7 of the outer cabinet 1. One side of the upper end of the inner cabinet 4 corresponding to the front side plate 7 of the outer cabinet 1 protrudes to form a limiting portion 8. The outer side surface of the limiting portion 8 inclines inwards to form a first inward inclined surface 9. The upper end surface of the front side plate 7 of the outer cabinet 1 inclines downwards to form a second inward inclined surface 10. A detection area with a triangular cross-section is formed between the first inward inclined surface 9 and the second inward inclined surface 10.

[0047] In a preferred embodiment, the detection element 5 is arranged near the region where the first inward inclined surface 9 and the second inward inclined surface 10 meet, precisely controlling the range of the detection area, improving the detection accuracy, preventing misjudgment, and being more adaptable to the actual use situation.

[0048] In a preferred embodiment, the outer cabinet 1 forms an equipment area below the inner cabinet 4. The lifting control system is installed in the equipment area. The outer side of the outer cabinet 1 is provided with a first panel 11 corresponding to the area where the inner cabinet 4 is located at the first position and a second panel 12 corresponding to the equipment area. The second panel 12 is detachably connected to the outer cabinet 1. It can be understood that the facilities of the control system are placed in the equipment area, and the partition disassembly enables daily maintenance to be carried out in partitions. When the equipment area is repaired, only the second panel 12 needs to be removed. With such a setting, it prevents the loss of items in the operation area of the inner cabinet 4. In the present utility model, the first panel 11 is also detachable, which is convenient for disassembly and transportation. Of course, the first panel 11 can also be set as non-detachable because the inner cabinet 4 can be lifted, and the operation area of the inner cabinet 4 can also be exposed through lifting without the need to disassemble the panel. In the present utility model, the connection method of the panel is that the bolt is fixed through the strip-shaped hole. The installation accuracy requirement for the strip-shaped hole is relatively low, reducing the installation difficulty. Of course, other connection methods can also be adopted in the present utility model, such as hinge connection.

[0049] Specifically, the heights of the first panel 11 and the second panel 12 can be set according to the height of the experimental table. The experimental table has a tabletop, and there is a cavity below the tabletop. The highest point of the second panel 12 is lower than the bottom surface height of the tabletop of the experimental table. When the equipment area is repaired, it can be carried out from the cavity below the tabletop of the experimental table without disassembling the back-mounted unit.

[0050] In a preferred embodiment, at least a pair of drawer installation side plates 13 are arranged in the inner cabinet 4 at a certain interval. At least a pair of drawer guide rails 14 are formed on the opposite side surfaces of the drawer installation side plates 13. A drawer 15 is slidably installed in the drawer guide rails 14. The storage area of the inner cabinet 4 is set as a drawer type, with clear partitions, facilitating the reasonable distribution of experimental supplies.

[0051] In a preferred embodiment, the drawer guide rail 14 is a groove provided on the drawer mounting side plate 13. Protrusions are formed on both sides of the drawer 15 to form sliding strips 16 that are inserted into the drawer guide rail 14. The inner height of the drawer guide rail 14 is adapted to the sliding strips 16 so that the sliding strips 16 can slide into / out of the drawer guide rail 14. A number of drawer guide rails 14 are provided on the drawer mounting side plate 13. During actual use, a guide rail 14 of any height can be selected to insert into the drawer 15, and drawers 15 of different thicknesses can be freely assembled according to the height of the laboratory equipment, which is convenient for storing items. Of course, the drawer 15 can also be replaced with a tray, mainly serving the function of partitioning items for storage.

[0052] Specifically, a positioning groove 17 is formed by downward depression at the bottom of the drawer guide rail 14, and a positioning protrusion 18 matching the positioning groove 17 is provided on the sliding strip 16. Under the action of the self-gravity of the drawer 15, the positioning protrusion 18 is inserted into the positioning groove 17 to form a limit for preventing the drawer 15 from sliding out. With such a setting, the drawer 15 can be smoothly placed in, but it needs to be lifted and moved outwards to be taken out, preventing the drawer 15 from accidentally falling off and sliding out, thus playing a limiting role.

[0053] In a preferred embodiment, the inner cabinet 4 has at least two pairs of drawer mounting side plates 13 installed, and two of the drawer mounting side plates 13 are detachably connected back to back. When two groups of drawer mounting side plates 13 are adjacent, the back-to-back detachable connection is adopted to connect the two drawer mounting side plates 13 into one body. With such a setting, the drawer mounting side plates 13 on both sides of the inner cabinet 4 and the drawer mounting side plates 13 in the middle part of the inner cabinet 4 can use the same set of production molds, reducing the production cost, being conducive to large-scale sales, and some laboratory accessories such as ventilation ducts or power components can be arranged between the two detachable drawer mounting side plates, improving the space utilization rate. It is also possible to integrally form the two connected drawer mounting side plates 13, but in this case, more production molds are required and the cost is higher. In this embodiment, the two connected drawer mounting side plates 13 are a first drawer mounting side plate 131 provided with mounting holes 30 and a second drawer mounting side plate 132 provided with protruding mounting blocks 31. The mounting holes 30 and the mounting blocks 31 are inserted and matched to make the two connected drawer mounting side plates 13 closely fit. The mounting holes 30 are round holes, and the mounting blocks 31 are cylinders, or the mounting holes 30 can also be other shapes, such as rectangles, triangles, etc., and the shape of the mounting blocks 31 is matched with them. In this embodiment, other connection methods can also be adopted for the drawer mounting side plates, such as bolt connection, but this requires disassembling parts.

[0054] Those of ordinary skill in the art can understand that all or part of the steps in implementing the above embodiment methods can be completed by instructing relevant hardware through a program. The program can be stored in a computer-readable storage medium, such as ROM / RAM, disk, optical disc, etc.

[0055] The above-disclosed are only the preferred embodiments of the present utility model. Certainly, the scope of the rights of the present utility model cannot be limited thereby. Therefore, equivalent changes made according to the claims of the present utility model still fall within the scope covered by the present utility model.

Claims

1. A lifting type anti-pinch hand back hanging unit, characterized in that: include: An outer cabinet (1), wherein a mounting structure (2) for connecting to a laboratory table is provided on a side of the outer cabinet (1), and an opening (3) is provided at an upper end of the outer cabinet (1); An inner cabinet (4), the inner cabinet (4) being movable up and down relative to the outer cabinet (1), having a first position located inside the outer cabinet (1) and a second position extending out of the outer cabinet (1) through the opening (3); A lifting control system connected to the inner cabinet (4) and used to control the inner cabinet (4) to move between a first position and a second position; An anti-pinch control system comprises a detection element (5) installed on the outer cabinet (1) near the opening (3), the detection element (5) being connected to the lifting control system, the detection element (5) being used to detect whether a human body is close to the opening (3) area, when the detection element (5) detects that a human body is close to the opening (3) area, the detection element (5) sends a signal to the lifting control system, and when the lifting control system receives the signal, the lifting control system stops working.

2. The lifting type anti-pinch hand back hanging unit according to claim 1, characterized in that: The height of the upper ends of the side panels (6) on both sides of the outer cabinet (1) is higher than the height of the upper ends of the front side panels (7) of the outer cabinet (1), so that a detection area is formed between the side panels (6) on both sides of the outer cabinet (1) above the front side panels (7) of the outer cabinet (1), and the detection element (5) is installed at a position on the side panels (6) on both sides of the outer cabinet (1) corresponding to the detection area.

3. The lifting anti-pinch hand back hanging unit according to claim 1, characterized in that: A protrusion on one side of the upper end of the inner cabinet (4) forms a limiting portion (8); when the inner cabinet (4) is located at the first position, the limiting portion (8) at the upper end of the inner cabinet (4) forms an abutment limit with the upper end of at least one side plate of the outer cabinet (1).

4. The lifting type anti-pinch hand back hanging unit according to claim 3, characterized in that: The height of the upper ends of the side panels (6) on both sides of the outer cabinet (1) is higher than the height of the upper ends of the front side panels (7) of the outer cabinet (1); the upper end of the inner cabinet (4) corresponds to a protrusion on one side of the front side panel (7) of the outer cabinet (1) to form a limiting portion (8); the outer side surface of the limiting portion (8) is inclined inward to form a first inwardly inclined surface (9); the upper end surface of the front side panel (7) of the outer cabinet (1) is inclined downward to form a second inwardly inclined surface (10); and a detection area with a triangular cross-section is formed between the first inwardly inclined surface (9) and the second inwardly inclined surface (10).

5. The lifting type anti-pinch hand back hanging unit according to claim 1, characterized in that: The detection element (5) is arranged close to the area where the first inner inclined surface (9) and the second inner inclined surface (10) intersect.

6. The lifting type anti-pinch hand back hanging unit according to claim 1, characterized in that: The outer cabinet (1) forms an equipment area below the inner cabinet (4), the lifting control system is installed in the equipment area, and the side of the outer cabinet (1) is provided with a first panel (11) arranged corresponding to the area where the inner cabinet (4) located at the first position is located, and a second panel (12) arranged corresponding to the equipment area, and the second panel (12) is detachably connected to the outer cabinet (1).

7. The lifting type anti-pinch hand back hanging unit according to claim 1, characterized in that: The laboratory table has a table top, and a cavity is formed below the table top. The highest point of the second panel (12) is lower than the height of the bottom surface of the table top of the laboratory table.

8. The lifting type anti-pinch hand back hanging unit according to claim 1, characterized in that: The inner cabinet (4) is provided with at least one pair of drawer mounting side panels (13) arranged at a certain distance from each other, at least one pair of drawer guide rails (14) are formed on opposite side surfaces of the drawer mounting side panels (13), and a drawer (15) is slidably mounted in the drawer guide rails (14).

9. The lifting type anti-pinch hand back hanging unit according to claim 8, characterized in that: The drawer guide rail (14) is a groove arranged on the drawer mounting side plate (13), and the protrusions on both sides of the drawer (15) form a sliding bar (16) inserted into the drawer guide rail (14); the inner height of the drawer guide rail (14) is adapted to the sliding bar (16) so that the sliding bar (16) can slide in / out along the drawer guide rail (14); a plurality of drawer guide rails (14) are arranged on the drawer mounting side plate (13), and a positioning groove (17) formed by a downward depression is arranged at the bottom of the drawer guide rail (14), and a positioning protrusion (18) matching the positioning groove (17) is arranged on the sliding bar (16); under the action of the drawer (15)'s own gravity, the positioning protrusion (18) is inserted into the positioning groove (17) to form a limit to prevent the drawer (15) from sliding out.

10. The lifting type anti-pinch hand back hanging unit according to claim 8, characterized in that: The inner cabinet (4) has at least two pairs of drawer mounting side panels (13) mounted thereon, and two of the drawer mounting side panels (13) are detachably connected back to back.

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