An expandable workbench

Abstract

The utility model discloses a laboratory table technical field's one kind can expand work platform. The work platform structure and function separate, space and function all have stronger expandability. The work platform main part is by the sealed cavity of detachable cuboid rigid frame and a plurality of different function panels, and each function panel is installed on the frame through locking device, and each function panel installation position need not fixed, can install on the different surface of the frame with its size consistent according to need. The work platform basic function includes temperature and humidity and illumination control, dust removal and sterilization etc. and temperature, humidity, air pressure, air particulate matter and video monitoring ability, can realize manual, automatic and collaborative operation of task through artificial glove and mechanical arm. The multiple frames of the work platform can be connected in horizontal and vertical direction, contain more function panels while expanding work platform space, and this expandability makes the work platform can satisfy more task demand.

Description

Technical Field

[0001] This utility model belongs to the field of laboratory table technology, specifically relating to a sealed expandable workbench whose space and functions can be freely combined. Background Technology

[0002] A workbench is an area or platform used to perform a specific task, widely used in machinery manufacturing or repair, product testing, plant tissue culture inoculation, medical and biochemical experiments, and many other fields. Its essence is to provide a controlled operating environment and space. Because the conditions required to complete a task vary, different requirements are placed on workbenches, such as dust-free, sterile, sealed, temperature-controlled, multi-person collaboration, storage, and waste disposal. While ideally, a building that meets these specific needs and is equipped with a simple operating platform would be best, under the premise of meeting the same operating conditions, constructing a workbench with controllable environmental conditions is undoubtedly more cost-effective and convenient. Besides versatile, simple, and environmentally controllable workbenches like "A Constant Temperature Glove Operating Box" (CN214586588U, 2021.11.02) and "A Mobile Temperature-Controlled Sterilization Door-Opening Clean Bench" (CN205164772U, 2016.04.02), more specific-purpose workbenches have emerged. For example, published literature includes: a sealed clean bench (CN 208575811 U, 2019.03.05) and an easy-to-operate clean bench for bacterial experiments (CN210700231U, 2020.06.09), both equipped with mechanical gripping devices for easy operation in a completely sealed environment; and an automated clean bench (CN 107020169). A clean bench with automatic temperature and humidity control (CN108161846A, 2018.06.15) automates the control of air quality, lighting, and table height, reducing the burden of manual operation; a clean bench (CN218945127U, 2023.05.02) with waste liquid collection function facilitates the immediate discharge of experimental waste liquid; and a laboratory ultra-clean workbench (CN221816193U, 2024.10). 11) The internal operating space can be adjusted and divided by adding internal partitions; a novel cleanroom workbench for displaying information (CN213791737U, 2021.07.27) allows users to view the workbench's working status through a hidden electronic display screen; a portable sterile operating table (CN216260890U, 2022.04.12) and a foldable portable sterile operating table (CN209049412U, 2019.07.02) adopt a detachable and foldable structure for easy carrying. In the above-mentioned literature, whether it is a general-purpose, specific-purpose, or functionally specific workbench, due to its fixed structure, it is not easy to expand and cannot meet diverse needs. Usually, the implementation conditions of many tasks in a research institution or testing institution are not the same, and it may be necessary to purchase workbenches with different functions to complete them. If a workbench can meet the needs of multiple tasks at the same time, it can undoubtedly save more costs. This utility model is based on this background. Utility Model Content

[0003] The main purpose of this invention is to provide a multi-functional sealed workbench with a controllable internal environment for performing various tasks. Through modular design, the workbench offers strong scalability in terms of space and function, while facilitating disassembly, installation, and transportation. It can meet the diverse needs of various experiments, plant tissue culture, product testing, and maintenance. Its main body consists of a detachable rectangular rigid frame and a closed cavity composed of several different functional panels. Each functional panel is mounted on the frame via locking devices and limiting posts, allowing for easy user assembly and disassembly. The installation position of each functional panel does not need to be fixed; it can be installed on different surfaces of the frame as needed, offering flexible assembly. The basic functions of this workbench include temperature, humidity, and lighting control; dust removal and sterilization; and monitoring capabilities for temperature, humidity, air pressure, airborne particulate matter, and video. Manual, automatic, and collaborative operations can be achieved through human gloves and robotic arms. The expandable frame and customizable panel functions allow the workbench's space and functions to meet a wider range of task requirements.

[0004] The workbench's rectangular rigid frame is constructed from detachable hollow square tubes, which are connected and fixed at their joints using tee fittings. Besides forming the main structure and bearing the weight of the main body, the frame also facilitates power and electronic signal connections to the various functional panels and devices within the cavities. All the workbench's wires are connected to the computer control module within the main functional panel at the bottom via the hollow sections of the square tubes.

[0005] The square tube has several power interfaces, electronic signal interfaces, and sensor mounting holes of different specifications arranged inside the cavity. Each interface and mounting hole is equipped with a sealing cap to seal the opening when not in use. Temperature, humidity, air pressure, and air particulate matter monitoring sensors are installed inside the square tube of the frame longitudinal beam.

[0006] The aforementioned power interfaces include two types: one is a low-voltage power adapter, which directly connects to the external power conversion interface located on the outer side of the square tube within the cavity, used to connect external power to the inside of the cavity, primarily providing low-voltage power to equipment placed within the cavity; the other is an ultra-low voltage DC power interface, connected via wires to the computer control module of the main function panel, powered by the workbench. The aforementioned electronic signal interfaces also include two types: one is a workbench-controllable electronic signal interface, connected via wires to the computer control module of the main function panel, used to connect workbench-controllable electronic facilities, such as additional sensors, controlled function panels, etc.; the other is an electronic signal adapter not controlled by the workbench, directly connected to the external electronic signal conversion interface located on the outer side of the square tube within the cavity, used to transmit electronic signals from equipment placed within the cavity to the outside of the workbench. Thus, when some electronic devices are large, only the key components can be placed inside the cavity, and their control or output signals can be transferred to external equipment components via the electronic signal adapter, reducing the internal workbench space occupied by the entire device. The sensor has a pre-drilled hole that is empty and directly connects to the sensor's external mounting hole located on the outside of the square tube. This is for users to install external sensors that are not controlled by the workbench, such as CO and SO2 hazardous gas monitoring sensors. After the external sensor is installed, the pre-drilled sensor mounting hole should be sealed to keep the workbench as a whole sealed.

[0007] The square tube located on the outer side of the cavity has a lock hole and unlocking device. When the latch on the function panel is inserted into the lock hole, the frame and function panel can be locked together. A sealing strip is installed between the lock hole and the edge of the square tube to ensure a seal between the function panel and the square tube after installation. This side also has power conversion external interfaces, electronic signal conversion external interfaces, and sensor external mounting holes corresponding to the low-voltage power adapter interface, electronic signal adapter interface, and sensor reserved mounting holes on the inner side, respectively.

[0008] A camera is installed on the top beam of the frame, inside the cavity, to observe the complete situation inside the workbench. Ultraviolet germicidal lamps and lighting are also installed.

[0009] The tee fitting has a circular limiting hole on the outer side of the cavity that contacts the functional panel. A limiting post can be inserted into this hole. The limiting post has two functions: first, it can be inserted into the circular limiting holes at the four corners of the functional panel to prevent the panel from moving on the frame; second, when the frame is expanded, it can be inserted into the corresponding limiting hole on the tee fitting of the expansion frame to connect the two frames.

[0010] Functional panels are primarily used within the enclosure frame to form a sealed cavity and provide additional functions to aid in task completion. These panels fall into four categories: blank functional panels, operational functional panels, main functional panels, and custom functional panels. All functional panels must meet the mechanical requirements for installation on the aforementioned frame. If a functional panel requires power and electronic signal connection, it must also meet the corresponding power and electronic signal connection control requirements of the frame. Installation mechanical requirements include: the panel is generally rectangular, with dimensions matching those of the frame surface; foldable latches are located around the perimeter of the inner cavity surface in contact with the frame, corresponding to the frame's locking holes, allowing for insertion and locking; sealing strips are present around the perimeter to ensure a seal between the panel and the frame after installation; and identical circular limiting holes are located at the four corners, corresponding to the limiting holes of the frame's tee fittings, allowing for the insertion of limiting posts. When the panel requires power connection, the power plug must match the power socket on the frame and its power output must not exceed the maximum power of the power interface. If electronic signal control is required, the electronic signal plug must match the frame's electronic signal interface and comply with the corresponding communication standards.

[0011] The blank functional panel only has a barrier function and meets basic mechanical installation requirements. Its central area can be made of transparent or opaque material.

[0012] The control panel provides the primary means of manual intervention and includes two types: one is the traditional glove-style control panel, where the central area is typically made of transparent material, with two round holes and a glove on the front for hand insertion; the other is the robotic arm control panel, which can replace a human arm. It is primarily operated manually or through programmed automation via a main control board on the bottom main control panel, and can also be used in conjunction with the glove-style control panel. The robotic arm is mounted on a fixed slide rod located inside the cavity of the panel. The slide rod has graduated scales to assist in robotic arm positioning, and on the same side are power and electronic signal interfaces for connection to the frame. A camera is installed at the end of the robotic arm to monitor its movement.

[0013] The main function panel is the core of the workbench, controlling the internal environment, power supply, and electronic signals. It is typically located at the bottom of the frame. Internally, it contains a computer control module, a pop-up main control panel, an air filtration module, a temperature and humidity control module, and a ventilation module. The camera, UV germicidal lamp, lighting sensor, temperature sensor, humidity sensor, air pressure sensor, air particulate matter sensor, controllable power interface, electronic signal interface, and the air filtration, temperature and humidity control, and ventilation modules are all electrically connected to the computer main control module. Pressing the pop-up button on the main control panel automatically ejects it from the inside. The main control panel features a touchscreen and robotic arm operation buttons, controlling all electrical components connected to the computer main control module.

[0014] The main function panel is located at the front of the cavity, and includes a worktable power switch, a pop-up button for the main control panel, and worktable running status indicator lights.

[0015] The main function panel is located on the upper part of the inner side of the cavity, and is equipped with replaceable facility support plates to place instruments, equipment, and auxiliary facilities. Different types of support plates can be replaced according to specific needs when performing different tasks. For example, a support plate with a flow guide groove can be used for tasks that easily generate waste liquid, guiding the waste liquid to a storage tank; a support plate with adjustable clips can be used to fix easily movable objects placed on the support plate. The side is equipped with internal air outlets and inlets for the ventilation module, and is fitted with sealing caps to close them when not in use.

[0016] The main function panel is located on the lower part of the outer side of the cavity and is equipped with pre-installation holes for the support frame, which are used to install the shock absorption device and the support frame.

[0017] The main function panel is located at the rear of the outer side of the cavity. It is equipped with an external air inlet and an external air outlet for the ventilation module, and the external air outlet can be connected to the air outlet duct. It is also equipped with a signal output port for the computer control module to connect to a computer. This side also includes a workbench power input interface for connecting to an external power source, a main power input interface that can be electrically connected to the frame, and a main electronic signal input interface, all of which are electrically connected to the computer control module.

[0018] Customized function panels are panels with special functions that can be customized according to user needs, in addition to the three basic function panels mentioned above. For example, they may have storage space, hooks, or brackets.

[0019] Except for the main function panel which is installed under the frame, the installation positions of other panels are not fixed and can be installed on the five surfaces of the frame (front, back, left, right, and top) that are the same size as the panels, as needed.

[0020] The frame can be connected in both horizontal and vertical directions, meaning that the workbench can be expanded by freely combining multiple frames and more functional panels, thus increasing the usable space while providing more functionality.

[0021] The beneficial effects of this utility model are as follows: The modular design effectively separates function and structure. For designers, this allows them to focus on functional panel design without excessive structural considerations. Based on the same structure, it is easier to design and manufacture versatile workbenches, and it also facilitates workbench maintenance. For users, the flexible assembly allows for the replacement of functional panels and their installation positions according to specific needs, enabling the workbench to adapt to different personnel and tasks. Its functional and spatial scalability allows users to purchase and configure workbenches as needed, reducing both user costs and the space occupied by the workbench. Attached Figure Description

[0022] Figure 1 This is a front view of a rigid frame composed of hollow square tubes and tee fittings.

[0023] Figure 2 The square tube has two sides inside the cavity that do not contact the function panel and are equipped with power interface, electronic signal interface and sensor mounting holes.

[0024] Figure 3 The square tube is located on the two outer sides of the cavity, in contact with the functional panel, and is equipped with sealing strips, power conversion external interface, electronic signal conversion external interface, sensor external mounting hole, lock hole and unlocking device.

[0025] Figure 4 The top left and right crossbeams of the frame are located on the two sides inside the cavity, and additional cameras and ultraviolet germicidal lamps are installed there.

[0026] Figure 5 The front and rear crossbeams at the top of the frame are located on the two sides inside the cavity, and additional lighting is installed there.

[0027] Figure 6 It is a tee fitting that connects to a square tube. It has circular limiting holes on the three sides of the tube that are located on the outside of the cavity and in contact with the functional panel, into which circular limiting posts can be inserted.

[0028] Figure 7 It is a blank functional panel that only serves as a barrier and meets basic mechanical installation requirements. Foldable latches, sealing strips, and circular limit holes are arranged on the inner side of the panel located in the cavity. The central area can be made of transparent or non-transparent material.

[0029] Figure 8 It is a type of control panel, a traditional glove-style control panel, with the central area usually made of transparent material, and the front containing two round holes and a glove.

[0030] Figure 9 This is another type of control panel, a robotic arm control panel, which can replace a human arm for operation. It is mainly operated manually or automatically via the main control panel on the bottom main function panel, and can also be used in conjunction with a glove-type control panel. The robotic arm is mounted on a slide rod located inside the cavity of the panel. The slide rod has a scale for assisting in the robotic arm's positioning, and a camera is installed at the end of the robotic arm.

[0031] Figure 10 This is the upper view of the main function panel located inside the cavity. The upper part is equipped with the air inlet and outlet of the ventilation module and a replaceable support plate. The front part is equipped with the workbench power switch, the main control panel pop-up switch and the workbench working status light.

[0032] Figure 11This is a lower view of the main function panel located outside the cavity. The lower part of the panel has pre-installed mounting holes for the support frame, which are used to install the shock absorption device and the support frame. The rear part has the external air inlet and outlet of the ventilation module, the signal output port of the computer control module, and the power input interface of the workbench.

[0033] Figure 12 It is a customized functional panel with storage space.

[0034] Figure 13 This is a front view of the assembled double-frame extended workbench, which consists of two frames connected laterally and includes multiple traditional glove operation panels, allowing multiple people to work together and greatly expanding the workbench's operating space.

[0035] Figure 14 It is a special type of latch used to connect two frames.

[0036] Figure 15 This is a front view of the assembled single-frame workbench, which includes both a robotic arm control panel and a traditional glove control panel, used together. Detailed Implementation

[0037] An optimal embodiment of this utility model is as follows:

[0038] like Figure 15 As shown, in this embodiment, the rectangular rigid frame has the same dimensions on the front, back, top, and bottom, and the same dimensions on the left and right sides, allowing for more options in the installation position of the panels. It is also equipped with one traditional glove operation panel 151 (with dimensions identical to the front of the frame), one robotic arm operation panel 152, two blank function panels 153, and one main function panel 154, as well as two customized function panels 155 and two blank function panels (with dimensions identical to the right side of the frame).

[0039] The frame of the workbench is as follows Figure 1 As shown, it is composed of detachable hollow square tubes 11. The joints of the square tubes are connected by T-joints 12 and fixed with screws. All wires connecting the power supply and electronic signal interface are connected to the computer control module of the bottom main function panel 154 through the hollow interior of the square tubes. All T-joints have circular limiting holes 61 on the contact surface with the function panel on the outer side of the cavity, into which circular limiting posts 62 can be inserted. All square tubes have sealing strips 19, two lock holes 34 and corresponding unlocking devices 35 on the two contact surfaces with the function panel on the outer side of the cavity.

[0040] On the four longitudinal beam square tubes 156 of the frame, power interfaces 13 and electronic signal interfaces 14, as well as reserved sensor mounting holes 15, are respectively arranged on two surfaces inside the cavity. Specifically, there are two low-voltage power adapters 21, one ultra-low voltage power interface 22, one controllable electronic signal interface 23, one electronic signal adapter 24, and one reserved sensor mounting hole 15. On the four longitudinal beam square tubes, four sensors for temperature, humidity, air pressure, and air particulate matter are respectively installed at the middle position inside the cavity. All interfaces and holes have corresponding sealing caps 16 to keep them closed when not in use. On the four longitudinal beam square tubes, on the outer side of the cavity, there are two low-voltage power conversion external interfaces 31, electronic signal conversion external interfaces 32, and sensor external mounting holes 33, which correspond to the low-voltage power adapters 21, electronic signal adapters 24, and reserved sensor mounting holes 15 on the inner side, respectively.

[0041] Cameras 41 and ultraviolet germicidal lamps 42 are installed inside the cavities of the square tubes 17 on the left and right sides of the top of the frame. Lighting lamps 51 are installed inside the cavities of the square tubes 18 on the front and rear sides of the top of the frame.

[0042] This embodiment includes four main function panels: a blank function panel, an operation function panel, a main function panel, and a customized function panel. All function panels are rectangular in shape and conform to the dimensions of the frame surface at the installation location. Two foldable latches 71, sealing strips 72, and four circular limiting holes 73 are provided around the perimeter of each function panel where it contacts the frame inside the cavity. When the latches 71 are inserted into the corresponding locking holes 34 on the frame and locked, the panel and frame are sealed together. Simultaneously, the circular limiting posts 62 on the frame's tee insert insert into the corresponding limiting holes 73 on the function panel, restricting the movement of the function panel on the frame.

[0043] The central area of ​​the four blank function panels is made of non-transparent material. Two of them can be installed on the front, back, and top surfaces of the frame, and the other two can be installed on the left and right surfaces of the frame.

[0044] Two operation function panels can be installed on the front, back, and top surfaces of the frame. One is a traditional glove-style operation panel with a transparent central area and two round holes 81 and a glove 82 on the front. The other is a robotic arm operation panel, which can be operated manually or automatically via the main control panel 108 on the bottom main function panel 154. The robotic arm 91 is mounted on a fixed slide rod 92 located inside the cavity on its panel. On the same side, there is a power interface 94 and an electronic signal interface 95 that can be connected to the frame. There is a scale 93 on the slide rod to assist in the positioning of the robotic arm. A camera 96 ​​is also installed at the end of the robotic arm 91.

[0045] The main function panel 154 is installed at the bottom of the frame, enabling control of the cavity environment, power supply, and electronic signals. It contains a computer control module, a pop-up main control panel 108, an air filtration module, a temperature and humidity control module, and a ventilation module. Pressing the pop-up button 107 automatically pops the main control panel 108 out from within. The main control panel features a touchscreen and robotic arm operation buttons.

[0046] The main function panel is located at the front of the cavity, and is equipped with a worktable power switch 106, a main control panel pop-up button 107, and a worktable running status indicator light 109.

[0047] The main function panel is located on the upper part of the inner side of the cavity, and is equipped with a replaceable facility support plate 101 for placing instruments, equipment and auxiliary facilities. The support plate includes four adjustable clips 102 for securing easily movable objects placed on the support plate. The side is provided with an internal air outlet 103 and an internal air inlet 104 for the ventilation module, and is equipped with a sealing cover 105 to close it when not in use.

[0048] The main function panel is located on the lower part of the outer side of the cavity and is provided with a support frame pre-installation hole 111 for installing the shock absorption device and the support frame.

[0049] The main function panel is located at the rear of the outer side of the cavity, and includes an external air inlet 112 for the ventilation module, an external air outlet 113, a computer control module signal output port 114, and a workbench power input interface 115, as well as a main power input interface 116 and a main electronic signal input interface 117 for frame connection. The external air outlet can be connected to an air duct, and the computer control module signal output port can be connected to a computer.

[0050] Two custom-designed functional panels can be installed on the left and right sides of the frame. The panels are located inside the cavity and have two additional storage compartments 121, which can be used to place reagent bottles, glassware, etc., and prevent them from tipping over.

[0051] An optimal assembly method in this embodiment is as follows: Figure 15 As shown, a traditional glove-style control panel is installed at the front of the frame, a robotic arm control panel is installed on top, a blank panel is installed at the back, and customized function panels are installed on the left and right sides. The robotic arm is coded and operated automatically through the main control panel, while the operator manually operates it through the glove control panel, realizing human-machine collaboration to complete the task.

[0052] Another optimal assembly method in this embodiment is to install blank function panels on the front, back, left, and right sides of the frame, and install robotic arm operation panels on them. The operator can manually operate the robotic arm to complete the task through the main control panel of the main function panel. In this way, it can be operated in an ultraviolet light irradiation environment without harming the operator.

[0053] For two embodiments of this size, they can be connected horizontally and vertically to form an extended worktable. The horizontal connection method is as follows: Figure 13 As shown, the two frame contact surfaces 131 can be accessed through... Figure 14 The special locking mechanism shown is used for locking. This locking mechanism consists of two retaining rings 141, a rotatable rotating rod 142, a handle 143 fixed to the rotating rod, and an impact disc 144. Inserting the retaining rings into the locking holes between the two frames locks them in place; rotating the handle rotates the rotating rod, causing the disc to rotate and simultaneously impact two unlocking devices on the frames, thus releasing the locking mechanism.

Claims

1. An expandable workbench, characterized by: The workbench is a closed cavity composed of a detachable rectangular rigid frame and replaceable functional panels. The functional panels are installed on the rectangular rigid frame by locking devices and limiting posts, and can be installed on any frame surface with the same size as the functional panels. A camera, ultraviolet germicidal lamp and lighting are installed on the square tube of the top beam of the frame inside the cavity. Temperature, humidity, air pressure and air particulate matter monitoring sensors are installed on the square tube of the longitudinal beam of the frame inside the cavity.

2. An expandable workbench according to claim 1, characterized in that: The rectangular rigid frame is composed of hollow square tubes connected by tee fittings. The square tubes, located inside the cavity, are equipped with power interfaces, electronic signal interfaces, and sensor mounting holes. Each interface and mounting hole is fitted with a sealing cap to seal it. The power interfaces include an extra-low voltage power interface powered by the workbench and a low-voltage power adapter interface powered by an external power source. The electronic signal interfaces include a controllable electronic signal interface controlled by the workbench and an electronic signal adapter interface not controlled by the workbench. Only the extra-low voltage power interface and the controllable electronic signal interface are electrically connected to the computer control module. The square tubes, located outside the cavity, are equipped with a lock hole, an unlocking device, and a sealing strip. They also include external power conversion interfaces and external electronic signal conversion interfaces electrically connected to the internal power and electronic signal adapter interfaces, respectively, and external sensor mounting holes that penetrate the internal sensor mounting holes. The tee fittings, located on the surface outside the cavity that contacts the functional panels, have circular limiting holes into which circular limiting posts can be inserted. Two frames of the same size can be connected in both horizontal and vertical directions, maintaining a seal even after all functional panels are installed.

3. An expandable workbench according to claim 1, characterized in that: The function panel includes four types: blank function panel, operation function panel, main function panel and customized function panel; the function panel has a folding latch that can be inserted into the frame lock hole on the inside of the cavity, and there are sealing strips around it. There are also the same circular limiting holes at the four corners and the corresponding positions of the limiting holes of the frame tee; the overall size of the function panel is consistent with the size of the frame surface, so that it can be sealed with the frame after the panel is installed and locked.

4. An expandable workbench according to claim 3, characterized in that: The central area of ​​a blank function panel can be made of transparent or opaque material.

5. An expandable workbench according to claim 3, characterized in that: The operation function panel includes two types: traditional glove-type operation panel and robotic arm operation panel. The traditional glove-type operation panel has two round holes and a glove on the front, allowing a human hand to reach in and perform operations. The robotic arm operation panel has a robotic arm mounted on a fixed slide rod located inside the cavity. There is a scale on the slide rod to assist in the positioning of the robotic arm. A camera is installed at the end of the robotic arm. On the same side of the panel, there are also power interfaces and electronic signal interfaces that can be electrically connected to the frame.

6. An expandable workbench according to claim 3, characterized in that: The main function panel is installed at the bottom of the frame and contains a computer control module, a pop-up main control panel, an air filtration module, a temperature and humidity control module, and a ventilation module. The camera, UV germicidal lamp, lighting sensor, temperature sensor, humidity sensor, air pressure sensor, air particulate matter sensor, controllable power interface, electronic signal interface, and the air filtration, temperature and humidity control, and ventilation modules on the frame are all electrically connected to the computer control module. The main function panel is located at the front of the cavity and includes a workbench power switch, a pop-up button for the main control panel, and workbench operation status indicator lights. Pressing the pop-up button automatically pops the main control panel out from the inside, allowing for main control operation. The board is electrically connected to the computer control module and is equipped with a touch screen and robotic arm operation buttons, which can control all electrical components connected to the computer control module. The main function panel is located on the upper part of the inner side of the cavity and is equipped with a replaceable facility support plate. Around the main function panel inside the cavity, there are internal air inlets and outlets for the ventilation module, and they are equipped with sealing covers that can close the air inlets and outlets. The lower part of the main function panel outside the cavity has pre-installed holes for the support frame. The rear part of the main function panel outside the cavity has external air inlets and outlets for the ventilation module, and the external air outlet can be connected to the air outlet duct. It also has a signal output port for the computer control module and a power input interface for the workbench.

7. An expandable workbench according to claim 3, characterized in that: A customizable function panel is a panel whose functions can be customized according to user needs.

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