A multifunctional table and method

Abstract

This invention relates to the field of office desks, and more particularly to a multifunctional desk and method, comprising a stand, a top frame mounted on the top of the stand, and support frames fixedly connected to the front and rear sides of the stand. Each support frame is connected to the interior of the stand through connecting holes. Multiple diagonal braces are fixedly connected to the middle of each support frame. Evenly distributed air inlets are provided on the upper sides of both diagonal braces. Air pumps are installed on both sides of the middle of the stand, with suction pipes fixedly connected to the input ends of the air pumps. The ends of the suction pipes are connected to the interior of the support frames, and air outlets are fixedly connected to the output ends of the air pumps. Evenly distributed central holes are provided on the outer periphery of each air outlet. This invention utilizes a desktop sensor to capture the stress position in real time, and coordinates various motors and transmission components to precisely move the support plate to the pressure position to support the tabletop, preventing long-term deformation of the desktop and effectively extending the lifespan of the desk.

Description

Technical Field

[0001] This invention relates to the field of office desks, and more particularly to a multifunctional desk and method thereof. Background Technology

[0002] Modern office workstations generally use modular desks. Traditional desks have a simple structure, with the desktop often made of a single piece of board. Prolonged pressure from the keyboard and armrests can cause the surface to dent and warp, shortening the lifespan of the desk and chair. The few desks on the market with supporting structures often have fixed supports, unable to flexibly adjust their support position to follow stress points, resulting in poor adaptability. Furthermore, conventional desks lack heating features, leading to insufficient comfort when working in low-temperature environments. Modular workstations also lack supporting structures, making assembly and disassembly cumbersome.

[0003] In practical use, ventilation and dust removal in conventional office areas mostly rely on whole-house central air conditioning and manual cleaning. The areas under desks and computer host compartments are enclosed dead corners where dust easily accumulates, and poor heat dissipation of the host leads to frequent high-temperature failures. The air volume of the fresh air outlet above the traditional desktop is fixed, and it is impossible to adjust the air supply volume according to the needs of different zones or individual points. This can easily lead to excessively strong airflow or stagnant and stuffy air at workstations. It is also difficult to evenly distribute the hot and cold air of the air conditioner to each workstation, making it difficult to achieve both temperature control and air quality in the office environment. Therefore, we propose a multi-functional table and method to solve the above-mentioned problems. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the prior art by proposing a multifunctional table and method.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a multifunctional table, including a frame, a top frame installed on the top of the frame, support frames fixedly connected to the front and rear sides of the frame, the support frames being connected to the interior of the frame through connecting holes, multiple diagonal braces fixedly connected to the middle of each support frame, evenly distributed air inlets on the upper sides of each diagonal brace, an air pump installed on both sides of the middle of the frame, an air pump input end fixedly connected to an air extraction pipe, the end of each air extraction pipe being connected to the interior of the support frame, an air pump output end fixedly connected to an air outlet pipe, evenly distributed central holes on the outer periphery of each air outlet pipe, and a cavity fixedly connected to the end of each air outlet pipe. A desktop is installed on the top of the frame, and a base plate is installed at the bottom of the desktop. Multiple pressure sensors and vibration sensors are installed inside the base plate. A partition plate is installed on the top of the base plate, and a heating plate is installed on the top of the partition plate. Heating coils are evenly distributed on the upper part of the heating plate. A base frame is installed on the upper part of each support frame, and a support plate is set on the upper part of the base frame. A turntable is rotatably connected to the middle of the support plate. A slot is opened in the middle of the turntable. Openings are evenly distributed on the bottom of each base frame. A servo motor is installed in the upper middle part of the base frame. A rotating frame is fixedly connected to the top drive end of the servo motor. A limit groove is opened in the middle of one side of the rotating frame, and a sliding column is slidably connected inside the limit groove.

[0006] Preferably, a filter screen is installed inside the diagonal brace on the side near the upright frame, and a dust collection bin is provided at the bottom of each support frame, with the dust collection bin connected to the interior of the diagonal brace.

[0007] Preferably, a threaded rod is threaded through and threaded to the lower part of the sliding column. The threaded rod is installed inside the limiting groove, and a motor is installed at the end of the threaded rod. The motor at the end of the threaded rod is installed inside the rotating frame. The upper part of the sliding column is slidably connected to the inside of the slot. A toothed ring is fixedly connected to the middle of the outer periphery of the turntable. A fixed column is installed on one side of the middle of the support plate. A hub motor is installed on the outer periphery of the fixed column. A drive gear is fixedly connected to the outer periphery of the hub motor. The drive gear is meshed with one side of the toothed ring. Multiple guide beads are installed on both sides of the support plate. Guide beads are provided on the front and rear sides of the guide beads. Electric push rods are installed at the bottom of both guide beads. The electric push rods are installed inside the support plate. Vertically distributed guide grooves are provided on the bottom of the tabletop. The size and specifications of guide beads correspond to guide grooves.

[0008] Preferably, the cavities are installed on both sides of the top frame. At the center of the adjacent ends of the cavities, evenly distributed air vents are provided on both sides. Elastic mesh belts are provided on the front and rear sides of the top frame. Multiple guide rollers are provided on the inner side of each elastic mesh belt. The upper ends of the guide rollers are fixedly connected to the cavities, and the lower ends of the guide rollers are perforated by sliding frames. The sliding frames are all located on the lower inner side of the elastic mesh. Guide rods are provided on the lower outer side of each elastic mesh belt. An electric motor is installed at one end of each guide rod. The electric motors are all installed at one end of the cavities. Each elastic mesh belt is spliced ​​together from segments of elastic mesh with different mesh sizes. Evenly distributed horizontal strips are provided inside each segment of elastic mesh, and these horizontal strips are connected by multiple vertical strips (one and two).

[0009] Preferably, each cavity is fixedly connected to a mounting bracket at its lower part, the upper part of the mounting bracket is slidably connected to a sliding bracket, a fixing block is fixedly connected to the lower part of each end of the sliding bracket, a fixing rod is slidably connected through the middle of each fixing block, the fixing rod is fixedly connected to both sides of the mounting bracket, and a top spring is sleeved on the upper part of the outer periphery of each fixing rod, the top spring is set on the upper part of the fixing block.

[0010] Preferably, stepper motors are fixedly connected to both sides of the bottom center of the sliding frame, and lead screws are fixedly connected to the top drive ends of the stepper motors. The tops of the lead screws pass through the sliding frame and are rotatably connected to the sliding frame. A lifting frame is provided on the upper side of the sliding frame, and the tops of the lead screws pass through the lifting frame and are threadedly connected to the lifting frame. A rotating roller is rotatably connected to the center of one side of the lifting frame. Multiple magnetic strips with different magnetic strengths and widths are embedded in the outer circumference of the rotating roller. A motor is installed at one end of the shaft in the middle of the rotating roller, and the motors at the ends of the rotating rollers are all installed on one side of the lifting frame.

[0011] Preferably, side guards are provided on the upper part of both sides of the desktop, and the side guards are installed on both sides of the top frame by mortise and tenon structure.

[0012] Preferably, a main unit compartment is provided on one side of the support frame, a slide frame is slidably connected to the lower part of the main unit compartment, a top compartment is installed on the top of the main unit compartment, and evenly distributed openings are provided at the bottom of the top compartment. A connecting pipe is connected to the rear of the top compartment, and the end of the connecting pipe away from the top compartment is connected to the inside of the support frame.

[0013] Preferably, each end of the base frame near the upright frame is equipped with evenly distributed connecting pipes, which are used to connect the interior of the base frame with the interior of the upright frame.

[0014] Preferably, a method of using a multifunctional table includes the following steps: S1, Workstation assembly: S1.1 Arrange multiple desks side by side, using the mortise and tenon structure of the top frame and side panels to interlock with each other, and rely on the side panels to separate and form independent workstations; S1.2 The computer host is installed inside the host compartment by sliding it out with a slide. The power cord and data cable are connected. The host compartment is closed. In cold conditions, the heating plate can be connected to the power supply. The heating coil heats up to warm the desktop and improves the comfort of using the computer. S2, Desktop Dynamic Adaptive Support: S2.1 When the user is working at a desk, the pressure sensor and vibration sensor built into the base plate collect the pressure and vibration data of the desktop in real time, and locate the area of ​​force on the keyboard and arm. S2.2 Start the servo motor to drive the rotating frame to rotate, and the threaded rod motor drives the threaded rod to rotate, controlling the slide column to slide in the limit groove and precisely adjust the movement stroke of the support plate; S2.3 The hub motor drives the active gear to mesh with the gear ring, causing the turntable to rotate and switch the slot orientation: when the slot is horizontal, the electric push rod lifts guide bead one and inserts it into the desktop guide slot one, and the support plate moves back and forth; when the slot is vertical, guide bead two lifts and inserts it into guide slot two, and the support plate moves left and right. S2.4 The system controls the support plate to move below the stress point of the desktop, supporting the local pressure area of ​​the desktop and preventing the desktop from deforming under long-term pressure. S3. Dust removal, heat dissipation, and bottom air disturbance operation: S3.1 Turn on the air pumps on both sides inside the stand. The air pumps draw air from under the tabletop through the air intake holes of the air extraction pipe, support frame, and diagonal brace. At the same time, they connect to the top chamber through the connecting pipe and draw air from the bottom opening of the top chamber. S3.2 Dust in the air is intercepted by the filter screen inside the inclined brace and falls along the inclined brace into the dust collection bin at the bottom of the support frame. The dust collection bin is periodically removed for unified cleaning. S3.3 The airflow continuously removes the residual heat from the main unit's operation in the main unit compartment, achieving passive heat dissipation for the main unit; S3.4. A portion of the airflow is diverted from the central hole of the air outlet pipe and sent to the base frame through the connecting pipe. The air is then exhausted downwards from the bottom opening of the base frame, disturbing the air under the table and assisting the air conditioner in evenly distributing the hot and cold airflow in the work area. S4. Graded adjustment of fresh air volume at the top of the workstation: S4.1 Overall screen replacement and air volume adjustment: Excess gas from the air pump is sent into the cavity through the air outlet pipe, discharged into the top frame from the air outlet of the cavity, and passes through the elastic net to form fresh air at the work station; start the electric motor on the side of the cavity to drive the guide rod to rotate, pulling the entire elastic net belt to rotate, and replace the elastic net segment with a different mesh size to align with the work station. The coarse mesh has a large air volume, and the fine mesh has a gentle air output; S4.2, Local deformation fine-tuning of air volume: Start the stepper motor under the sliding frame, the screw drives the lifting frame to rise and fall, and drives the rotating roller to get close to the elastic net; S4.3 The rotating roller is equipped with a motor that switches magnetic strips with different magnetic forces and widths on the surface of the roller. It relies on magnetic force to pull the horizontal strips inside the elastic mesh, stretching the first vertical strip and the second vertical strip, changing the size of the local mesh opening, and precisely adjusting the single-point air volume. S4.4 The top spring on the mounting bracket is always pressed against the fixing block to keep the sliding bracket and the elastic net taut and ensure smooth adjustment of the elastic net.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Pressure and vibration sensors are installed on the desktop base plate. The base frame is equipped with servo motors, rotating frames, threaded rods, and sliding columns. It is equipped with a slotted turntable, gear ring, hub motor, and guide beads one and two at the bottom of the support plate. The sensors collect real-time data on the pressure on the arm and keyboard to locate the load area. The hub motor switches the orientation of the turntable slots, and the electric push rods lift the guide beads and engage them in the desktop guide grooves one and two, realizing the omnidirectional movement of the support plate. The threaded rods finely adjust the travel of the sliding columns to precisely control the distance, so that the support plate supports the pressure-bearing position at a fixed point, disperses the local stress on the desktop, avoids deformation under long-term heavy pressure, and adapts to the office usage habits of various personnel.

[0016] 2. The stand has a built-in dual air pump, which is connected to the support frame and the inclined brace with air inlet through the air extraction pipe. The inclined brace is equipped with a filter screen, and the bottom of the support frame is equipped with a dust collection bin. The top bin is connected to the main unit bin through a connecting pipe. The air pump draws air from under the table and inside the main unit bin through the air inlet through the negative pressure of the air pump. The dust in the air is intercepted by the filter screen and falls into the dust collection bin along the inclined brace for centralized cleaning. The continuous airflow continuously removes the working heat of the computer host on the carriage. The host is cooled by air, which eliminates the problem of dust accumulation and wire blockage in the bin, high temperature shutdown, and saves the work of frequent manual dust cleaning and maintenance.

[0017] 3. The air outlet pipe has a central hole, and the airflow is introduced into the base frame between the support frames through the connecting pipe. The air is exhausted downward from the evenly distributed openings on the base frame. The air pump continuously agitates the stagnant air under the table, and together with the fresh air circulation above the whole unit, it accelerates the convection of hot and cold air in the office area. Under the condition of air conditioning operation, it can quickly deliver hot and cold air to each splicing workstation, eliminate the problem of large temperature difference between the upper and lower parts of the workstation and uneven temperature in the corners, optimize the utilization rate of indoor temperature control, and improve the comfort of the long-term sitting office environment. The whole set is formed by the original air flow distribution and no additional fan accessories are required.

[0018] 4. The top frame has cavities on both sides. Excess gas is sent to the area above the workstation through the vents of the cavities. It is then exhausted through multiple sections of elastic mesh with different mesh sizes to form fresh air in the workstation. An electric motor drives the guide rod to rotate the elastic mesh belt a full circle. Switching between coarse and fine mesh sections completes the overall coarse adjustment of the air volume. The sliding frame is driven by a stepper motor and lead screw to lift and lower, which drives the rotating roller loaded with magnetic strips of various specifications to come close to the mesh. The magnetic force pulls the horizontal and vertical strips one and two to change the local mesh size to achieve fine adjustment at a single point. The top spring keeps the mesh taut at all times to ensure stable air volume regulation and improve the problem of stuffy air in enclosed offices.

[0019] 5. The top frame and side panels of the desk adopt a mortise and tenon joint structure, allowing multiple desks to be quickly snapped together and disassembled after being placed side by side. The side panels separate independent, enclosed workstations, making assembly and disassembly simple. A heating plate and densely packed heating coils are installed above the desktop partitions, allowing the desktop to be heated in low-temperature environments. A pull-out computer compartment is also included on the side for convenient storage and arrangement of the computer. Combining modular workstation construction, equipment storage, and desktop heating, this product is suitable for various usage scenarios such as open-plan offices and low-temperature workstations, making it more versatile. Attached Figure Description

[0020] Figure 1 This is a side-view perspective structural diagram of a multifunctional table and method according to the present invention; Figure 2 This is a bottom-view three-dimensional structural diagram of a multifunctional table and method according to the present invention; Figure 3 This is a schematic diagram of a partial structure within the desktop of a multifunctional table and method according to the present invention; Figure 4 This is a partial structural diagram of the support plate of a multifunctional table and method according to the present invention; Figure 5 This is a partial structural diagram of the toothed ring of a multifunctional table and method according to the present invention; Figure 6 This is a partial structural diagram of guide groove one and guide groove two of a multifunctional table and method according to the present invention. Figure 7 This is a partial structural diagram of the drive gear of a multifunctional table and method according to the present invention; Figure 8 This is a partial structural diagram of the air pump part of a multifunctional table and method according to the present invention; Figure 9 This is a partial structural diagram of the cavity of a multifunctional table and method according to the present invention; Figure 10 This is a partial structural diagram of the mounting frame of the multifunctional table and method of the present invention; Figure 11 This is a partial structural diagram of the lifting frame of a multifunctional table and method according to the present invention; Figure 12 This is a schematic diagram of the elastic net structure of a multifunctional table and method according to the present invention.

[0021] 101. Desktop; 102. Top frame; 103. Elastic net; 104. Side guard plate; 105. Support frame; 106. Dust collection bin; 107. Stand; 108. Slide carriage; 109. Main unit compartment; 110. Base frame; 111. Air inlet; 112. Opening; 113. Partition plate; 114. Base plate; 115. Heating coil; 116. Heating plate; 117. Diagonal brace; 118. Top compartment; 119. Support plate; 120. Turntable; 121. Connecting pipe; 122. Extraction pipe; 123. Exhaust pipe; 124. Connecting pipe; 125. Lifting frame; 126. Slot; 127. Sliding column; 128. Hub motor; 129. Drive gear; 130. 131. Fixed column; 132. Toothed ring; 133. Cavity; 134. Servo motor; 135. Rotating frame; 136. Threaded rod; 137. Limiting groove; 138. Connecting hole; 139. Central hole; 140. Air pump; 141. Air outlet; 142. Cavity; 143. Sliding frame; 144. Lead screw; 145. Top spring; 146. Fixed block; 147. Mounting frame; 148. Fixed rod; 149. Guide roller; 150. Stepper motor; 151. Guide rod; 152. Magnetic strip; 153. Rotating roller; 154. Horizontal bar; 155. Vertical bar one; 156. Vertical bar two; 157. Guide groove one; 158. Guide bead one; 159. Guide bead two. Detailed Implementation

[0022] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0023] like Figures 1-12 The multifunctional table shown includes a stand 107, a top frame 102 mounted on the top of the stand 107, side guards 104 on the upper sides of the tabletop 101, the side guards 104 being mounted on the sides of the top frame 102 via mortise and tenon joints, a support frame 105 with the tabletop 101 mounted on top, a base plate 114 mounted on the bottom inside the tabletop 101, multiple pressure sensors and vibration sensors installed inside the base plate 114, a partition plate 113 mounted on the top of the base plate 114, a heating plate 116 mounted on the top of the partition plate 113, and evenly distributed heating coils 115 mounted on the upper part of the heating plate 116. The heating coils 115 can heat the tabletop 101, making it more comfortable to use in cold environments. Furthermore, in practical implementation, people can work by placing desks or using office supplies. When multiple desks are placed horizontally and connected, the tenon and mortise structures on both sides of the top frame 102 can cooperate with the tenon and mortise structures in the middle of the side guard plate 104, thereby dividing the horizontally connected desktop 101. The top frame 102 and the side guard plate 104 can divide the horizontally connected desks into individual "workstations". In actual office use, the pressure and vibration sensors installed in the base plate 114 can detect the pressure and vibration of the desktop 101 during use, thereby determining the position of the user's hands and keyboard based on the pressure and vibration data.

[0024] The base frame 110 has a support plate 119 on its upper part, and a turntable 120 is rotatably connected to the middle of the support plate 119. The turntable 120 has a slot 126 in its middle. The bottom of the base frame 110 has evenly distributed openings 112. A servo motor 133 is installed in the upper middle part of the base frame 110. A rotating frame 134 is fixedly connected to the top drive end of the servo motor 133. A limit groove 136 is opened in the middle of one side of the rotating frame 134. A sliding column 127 is slidably connected inside the limit groove 136. A threaded rod 135 is threaded through and threaded to the lower part of the sliding column 127. The threaded rod 135 is installed inside the limit groove 136. A motor is installed at the end of the threaded rod 135. The motor at the end of the threaded rod 135 is installed inside the rotating frame 134. The upper part of the sliding column 127 is slidably connected inside the slot 126. A gear ring 131 is fixedly connected to the center of the outer periphery of the turntable 120. A fixed column 130 is installed on one side of the center of the support plate 119. A hub motor 128 is installed on the outer periphery of the fixed column 130. A drive gear 129 is fixedly connected to the outer periphery of the hub motor 128. The drive gear 129 is meshed with one side of the gear ring 131. Multiple guide balls 159 are installed on both sides of the support plate 119. Guide balls 158 are provided on the front and rear sides of the guide balls 159. Electric push rods are installed at the bottom of the guide balls 158 and the guide balls 159. The electric push rods are installed inside the support plate 119. Vertically distributed guide grooves 156 and 157 are opened at the bottom of the tabletop 101. The size and specifications of the guide balls 158 and 159 correspond to the guide grooves 156 and 157, respectively. Furthermore, in specific implementation, the servo motor 133 drives the rotating frame 134 to rotate, which in turn drives the sliding column 127 to rotate synchronously. When the sliding column 127 rotates, it drives the turntable 120 and the support plate 119 to move through the slot 126. During this process, the electric push rod inside the support plate 119 can drive guide bead one 158 or guide bead two 159 to extend. Guide bead one 158 or guide bead two 159 can cooperate with guide slot one 156 and guide slot two 157 respectively to guide the support plate 119, thereby achieving the desired movement. The movement direction of the support plate 119 is limited, allowing the support plate 119 to move as a whole to the lower part of the corresponding force-bearing point of the desktop 101, thereby providing further support to the desktop 101 at that point and preventing local deformation caused by prolonged force on a local area of ​​the desktop 101 during operation, which would affect the long-term use of the desktop 101. During this process, the fixed column 130 drives the peripheral drive gear 129 to rotate, which in turn drives the meshing gear ring 131 to rotate synchronously, thereby driving the turntable 120 to rotate and changing the groove on the turntable 120. In the direction of slot 126, when slot 126 is in a horizontal "I" shape, guide bead 158 rises and engages with guide slot 156, allowing support plate 119 to move back and forth when the rotating frame 134 rotates. When slot 126 is in a vertical "|" shape, guide bead 158 descends while guide bead 159 rises and engages with guide slot 157, allowing support plate 119 to move left and right when the rotating frame 134 rotates. This enables omnidirectional movement of support plate 119 within base frame 110. Combined with the force and vibration detection functions of pressure and vibration sensors, this allows it to... It is adaptable to different users' different usage habits and usage scenarios, so that the desktop 101 can dynamically support and adapt according to the user's needs during use, which is conducive to the long-term use of the desktop 101. In specific operation, the motor at the end of the threaded rod 135 can drive the threaded rod 135 to rotate. When the threaded rod 135 rotates, it will drive the slide column 127 to move along the limit groove 136. By controlling the rotation angle of the rotating frame 134 and the position of the slide column 127, the movement distance of the support plate 119 can be precisely controlled when the rotating frame 134 rotates, which is beneficial to actual use.

[0025] Among them, support frames 105 are fixedly connected to the front and rear parts of both sides of the upright frame 107. The support frames 105 are connected to the interior of the upright frame 107 through the connecting holes 137. Multiple diagonal braces 117 are fixedly connected to the middle of the support frame 105. The upper part of both sides of the diagonal braces 117 is provided with evenly distributed air inlets 111. A filter screen is installed in the diagonal brace 117 on the side near the upright frame 107. A dust collection chamber 106 is provided at the bottom of the support frame 105. The dust collection chamber 106 is connected to the interior of the diagonal brace 117. Air pumps 139 are installed on both sides of the middle part of the upright frame 107. The input end of the air pump 139 is fixedly connected to the air extraction pipe 122. The end of the air extraction pipe 122 is connected to the interior of the support frame 105. The output end of the air pump 139 is fixedly connected to the air outlet pipe 123. The outer periphery of the air outlet pipe 123 is provided with evenly distributed central holes 138. The end of the air outlet pipe 123 is fixedly connected to the cavity 141. Furthermore, in practical implementation, people can start the air pump 139. The air pump 139 can use the suction pipe 122 to draw gas, and then draw air from the bottom of the desktop 101 through the air inlet 111 on the stand 107 and the diagonal support 117 connected to it. Through the connection of the connecting pipe 121, the suction can be further introduced into the top chamber 118, and then the air inside the main unit compartment 109 can be drawn through the opening at the bottom of the top chamber 118. This can prevent dust from accumulating on the bottom of the desktop 101 and the inside of the main unit compartment 109, which would affect the normal use of the power line or the computer host.

[0026] Among them, a main unit compartment 109 is provided on one side of the support frame 105. A slide 108 is slidably connected to the lower part of the main unit compartment 109. A top compartment 118 is installed on the top of the main unit compartment 109. The bottom of the top compartment 118 is provided with evenly distributed openings. The rear of the top compartment 118 is connected to a connecting pipe 121. The end of the connecting pipe 121 away from the top compartment 118 is connected to the inside of the support frame 105. A base frame 110 is installed on the upper part of the support frame 105. The end of the base frame 110 near the upright frame 107 is provided with evenly distributed connecting pipes 124. The connecting pipes 124 are used to connect the inside of the base frame 110 and the inside of the upright frame 107. Furthermore, in practical implementation, the continuous suction force during operation can continuously remove the heat generated and accumulated by the computer host inside the host compartment 109 during operation, preventing heat accumulation inside the host compartment 109 from affecting the host's heat dissipation, which is beneficial for actual use. When air enters the inclined support 117 and the upright frame 107, the air can be filtered through the filter in the inclined support 117, thereby blocking the dust particles in the air. The blocked dust will fall into the dust collection chamber 106 under the action of gravity along the inclined support 117, making it convenient for people to carry out centralized treatment.

[0027] The cavity 141 is installed on both sides inside the top frame 102. At the center of the adjacent end of each cavity 141, evenly distributed air vents 140 are provided on both sides. Elastic mesh 103 belts are provided on both the front and rear sides of the top frame 102. Multiple guide rollers 148 are provided inside each elastic mesh 103 belt. The ends of the upper guide rollers 148 are fixedly connected to the cavity 141, and the ends of the lower guide rollers 148 are all connected to sliding frames 142. The sliding frames 142 are all located within the elastic mesh 102. Guide rods 150 are provided on the lower inner side of the force net 103 and the lower outer side of the elastic net 103. An electric motor is installed at one end of each guide rod 150. The electric motor is installed at one end of the cavity 141. The elastic net 103 is spliced ​​together from various sections of elastic net 103 with different mesh sizes. Each section of elastic net 103 has evenly distributed horizontal strips 153 inside. The horizontal strips 153 are connected by multiple vertical strips 154 and 155. Furthermore, in specific implementation, when the air pump 139 is working, some of the extracted air can be introduced into the cavity 141 through the air outlet pipe 123. The air can be further introduced into the inner side of the top frame 102 through the air outlet 140 on the cavity 141. Finally, the air will pass through the elastic net 103 and be discharged. The continuous output of air can "replace" the air above each "workstation", forming an independent fresh air system. This avoids the "stuffy feeling" of people in the corner of the office due to long-term lack of air circulation, and is suitable for the needs of long-term office work.

[0028] Among them, each cavity 141 is fixedly connected to a mounting bracket 146 at the lower part, the upper part of the mounting bracket 146 is slidably connected to the sliding bracket 142, the lower parts of both ends of the sliding bracket 142 are fixedly connected to a fixing block 145, the middle of the fixing block 145 is slidably connected to a fixing rod 147, the fixing rod 147 is fixedly connected to both sides of the mounting bracket 146, the upper part of the outer periphery of the fixing rod 147 is fitted with a top spring 144, and the top spring 144 is set on the upper part of the fixing block 145; Furthermore, in specific implementation, the top spring 144 can cooperate with the sliding of the mounting bracket 146 and the sliding bracket 142 to keep the elastic net 103 in a taut state during use, which facilitates the rotation and adjustment of the elastic net 103, and at the same time keeps the mesh of the elastic net 103 unobstructed.

[0029] Among them, stepper motors 149 are fixedly connected to both sides of the bottom middle of the sliding frame 142, and lead screws 143 are fixedly connected to the top drive end of each stepper motor 149. The top of each lead screw 143 passes through the sliding frame 142 and is rotatably connected to the sliding frame 142. A lifting frame 125 is provided on the upper side of the sliding frame 142. The top of each lead screw 143 passes through the lifting frame 125 and is threadedly connected to the lifting frame 125. A rotating roller 152 is rotatably connected to the middle of one side of the lifting frame 125. Multiple magnetic strips 151 with different magnetic strengths and widths are embedded on the outer periphery of the rotating roller 152. A motor is installed at one end of the shaft in the middle of the rotating roller 152, and the motors at the ends of the rotating roller 152 are installed on one side of the lifting frame 125. Furthermore, in practical implementation, users can start the electric motor or stepper motor 149 according to actual usage needs. The electric motor drives the guide rod 150 to rotate, which in turn drives the elastic net 103 to rotate as a whole. This allows adjustment of the different sections of the elastic net 103 facing the user. Since the mesh size of the different sections of the elastic net 103 is different, the air output and air softness of the elastic net 103 can be adjusted to suit different user needs. Furthermore, the operation of the stepper motor 149 drives the lead screw 143 to rotate, which in turn drives the lifting frame 125 to move up and down, thereby driving the rotating roller at the front of the lifting frame 125. The roller 152 moves synchronously, and the magnetic strip 151 on the rotating roller 152 can pull the horizontal strip 153 in the elastic net 103, so that the corresponding horizontal strip 153 can stretch the vertical strip 154 ​​and vertical strip 155 under the action of magnetic force, so that the elastic net 103 is deformed near the rotating roller 152. During this process, the deformation of the elastic net 103 will stretch and deform the mesh at that point, and further adjust the local air output of the elastic net 103. The motor installed at the end of the lifting frame 125 can drive the rotating roller 152 to rotate, thereby switching the magnetic strip 151 near the elastic net 103. By switching the magnetic strip 151 with different magnetic strength and size, people can make further fine adjustments.

[0030] One method of using a multi-functional table includes the following steps: S1, Workstation assembly: S1.1. Multiple sets of desks are placed side by side and interlocked with each other using the mortise and tenon structure of the top frame 102 and the side guard plate 104, and independent office workstations are formed by relying on the side guard plate 104 to separate them. S1.2 The computer host is pulled out of the host compartment 109 by the slide 108, and the power cord and data cable are connected. When the host compartment 109 is closed, the heating plate 116 can be powered on in cold conditions, and the heating coil 115 will heat up the desktop 101 to improve the comfort of using the desk. S2 and Desktop 101 Dynamic Adaptive Support: S2.1 When the user is working at the desk, the pressure sensor and vibration sensor built into the base plate 114 collect the pressure and vibration data of the desktop 101 in real time, and locate the area of ​​force on the keyboard and arm. S2.2 Start the servo motor 133 to drive the rotating frame 134 to rotate, the threaded rod 135 is driven by the matching motor to rotate, control the slide column 127 to slide in the limit groove 136, and precisely adjust the moving stroke of the support plate 119. S2.3, Hub motor 128 drives drive gear 129 to mesh with gear ring 131, driving turntable 120 to rotate and switch the orientation of slot 126: When slot 126 is horizontal, electric push rod lifts guide ball 158 and engages it in guide slot 156 of tabletop 101, and support plate moves back and forth; when slot 126 is vertical, guide ball 2 159 lifts and engages it in guide slot 2 157, and support plate moves left and right; S2.4 The system control support plate 119 moves to below the stress point of the desktop 101 to support the local pressure area of ​​the desktop 101 and prevent the desktop 101 from deforming under long-term pressure. S3. Dust removal, heat dissipation, and bottom air disturbance operation: S3.1. Open the air pumps 139 on both sides inside the stand 107. The air pumps 139 draw air from the bottom of the table 101 through the air inlet 111 of the air extraction pipe 122, support frame 105, and diagonal brace 117. At the same time, they are connected to the top chamber 118 through the connecting pipe 121 and draw air from the bottom opening of the top chamber 118. S3.2 Dust in the air is intercepted by the filter screen inside the inclined brace 117, and the dust falls along the inclined brace 117 into the dust collection bin 106 at the bottom of the support frame 105. The dust collection bin 106 is periodically removed for unified dust removal. S3.3 The airflow continuously removes the residual heat from the main unit's operation within the main unit compartment 109, achieving passive heat dissipation for the main unit; S3.4. Part of the airflow is diverted from the central hole 138 of the air outlet pipe 123 and sent to the base frame 110 through the connecting pipe 124. The air is then exhausted downwards through the bottom opening 112 of the base frame, disturbing the air under the table and assisting the air conditioner to evenly distribute the hot and cold airflow in the work area. S4. Graded adjustment of fresh air volume at the top of the workstation: S4.1 Overall screen replacement and air volume adjustment: Excess gas from air pump 139 is sent into cavity 141 through air outlet pipe 123, and discharged from air outlet 140 of cavity 141 into top frame 102, passing through elastic net 103 to form fresh air at the work station; start the electric motor on the side of cavity 141 to drive guide rod 150 to rotate, pulling the entire elastic net 103 to rotate, and replace the elastic net 103 section with elastic net of different mesh specifications to align with the work station, coarse mesh for large air volume, fine mesh for gentle air output; S4.2, Local deformation fine-tuning of air volume: Start the stepper motor 149 below the sliding frame 142, and the lead screw 143 drives the lifting frame 125 to rise and fall, driving the rotating roller 152 to approach the elastic net 103; S4.3 The rotating roller 152 is equipped with a motor that switches the magnetic strips 151 with different magnetic forces and widths on the surface of the roller body. It relies on the magnetic force to pull the horizontal strips 153 inside the elastic net 103, stretch the vertical strips 154 and 155, change the size of the local mesh opening, and precisely adjust the single-point air volume. S4.4 The top spring 144 on the mounting bracket 146 always presses against the fixing block 145 to keep the sliding bracket 142 and the elastic net 103 taut, ensuring that the elastic net 103 can be adjusted smoothly.

[0031] Working principle: In practical use, people can work by placing desks or using office supplies. When multiple desks are arranged horizontally and connected, the tenon and mortise structures on both sides of the top frame 102 can cooperate with the tenon and mortise structures in the middle of the side guard plate 104, thereby dividing the horizontally connected desktop 101. The top frame 102 and the side guard plate 104 can divide the horizontally connected desks into individual "workstations". During specific office use, the pressure and vibration sensors installed in the base plate 114 can detect the pressure and vibration of the desktop 101 during use. Based on the pressure and vibration data, the position of the user's hands and keyboard can be determined. At this time, the operation of the servo motor 133 can drive the rotating frame 134 to move forward. The rotating mechanism, via the rotating frame 134, drives the sliding column 127 to rotate synchronously. When the sliding column 127 rotates, it drives the turntable 120 and support plate 119 to move through the slot 126. During this process, the electric push rod inside the support plate 119 can extend guide bead 158 or guide bead 159 respectively. Guide bead 158 or guide bead 159 can cooperate with guide slot 156 and guide slot 157 respectively to guide the support plate 119, limiting its movement direction. This allows the support plate 119 to move to the lower part of the corresponding force-bearing point on the desktop 101, providing further support to that area and preventing localized deformation of the desktop 101 due to prolonged stress during operation. To ensure the long-term usability of desktop 101, the fixed column 130 drives the peripheral drive gear 129 to rotate. The drive gear 129 then drives the meshing gear ring 131 to rotate synchronously, which in turn drives the turntable 120 to rotate. This changes the direction of the slot 126 on the turntable 120. When the slot 126 is in a horizontal "I" shape, guide bead 158 rises and engages in guide groove 156, allowing the support plate 119 to move back and forth when the rotating frame 134 rotates. When the slot 126 is in a vertical "|" shape, guide bead 158 descends while guide bead 159 rises and engages in guide groove 157, allowing the support plate 119 to move left and right when the rotating frame 134 rotates. This enables the support plate 119 to achieve [the desired movement / function]. The support plate 119 moves omnidirectionally within the base frame 110, and with the assistance of pressure and vibration sensors for force and vibration detection, it can adapt to different users' usage habits and scenarios. This allows the desktop 101 to dynamically adjust its support according to the user's needs, which is beneficial for its long-term use. In operation, the motor at the end of the threaded rod 135 drives it to rotate. This rotation causes the sliding column 127 to move along the limiting groove 136. By controlling the rotation angle of the rotating frame 134 and the position of the sliding column 127, precise control of the movement distance of the support plate 119 can be achieved during the rotation of the rotating frame 134, which is beneficial for practical use. During operation, the air pump 139 can be activated.The air pump 139 draws air through the suction pipe 122, which then draws air from under the desktop 101 through the air inlet 111 on the stand 107 and the connected diagonal brace 117. The suction is further directed into the top chamber 118 via the connecting pipe 121, where air is drawn from the inside of the main unit compartment 109 through the opening at the bottom. This prevents dust accumulation under the desktop 101 and inside the main unit compartment 109, which could affect the power supply or normal operation of the computer. Simultaneously, the continuous suction removes heat generated and accumulated by the computer inside the main unit compartment 109, preventing heat buildup and ensuring proper cooling. This design is beneficial for practical use. When air enters the inclined brace 117 and the upright frame 107, it is filtered by the filter in the inclined brace 117, trapping dust particles. The trapped dust falls into the dust collection chamber 106 under gravity, facilitating centralized processing. When the air pump 139 is working, some of the extracted air is introduced into the cavity 141 through the air outlet 123. The air is further introduced into the inner side of the top frame 102 through the air outlet 140 on the cavity 141, and finally discharged through the elastic net 103. The continuous output of air can replace the air above each "workstation," forming an independent fresh air system and avoiding the need for ventilation in office corners. People experience a "stuffy" feeling due to prolonged lack of air circulation. This system is suitable for long-term office work. In practical use, the central hole 138 on the air outlet pipe 123 allows some of the extracted air to be guided into the connecting pipe 124. The connecting pipe 124 then guides the air further into the base frame 110, allowing the gas to be discharged through the opening 112 at the bottom of the base frame 110. This achieves comprehensive air disturbance under the desktop 101, facilitating the air pump 139's extraction and ventilation work. Simultaneously, it can cooperate with the office's air conditioning system to distribute heat or cold air more quickly and evenly throughout the workstation, preventing excessive local temperature differences that could negatively impact user experience. In actual use, users can start the electric motor or step... The stepper motor 149 drives the guide rod 150 to rotate, which in turn drives the elastic net 103 to rotate as a whole. This allows for adjustment of the different sections of the elastic net 103 facing the user. Since the mesh size of each section is different, the air volume and gentleness of the airflow can be adjusted to suit different user needs. Furthermore, the stepper motor 149 drives the lead screw 143 to rotate, which in turn drives the lifting frame 125 to move up and down. This, in turn, causes the rotating roller 152 at the front of the lifting frame 125 to move synchronously. The magnetic strip 151 on the rotating roller 152 can pull the horizontal bars 153 in the elastic net 103.This allows the horizontal bar 153 at the corresponding location to stretch the vertical bars 154 and 155 under magnetic force, causing the elastic mesh 103 to deform near the rotating roller 152. During this process, the deformation of the elastic mesh 103 stretches and deforms the mesh at that location, further adjusting the local airflow of the elastic mesh 103. A motor installed at the end of the lifting frame 125 drives the rotating roller 152 to rotate, thereby switching the magnetic strip 151 closest to the elastic mesh 103. Switching between magnetic strips 151 with different magnetic strengths and widths allows for further fine-tuning, which is beneficial for practical use.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A multifunctional table, comprising a stand (107), characterized in that: The top of the upright frame (107) is equipped with a top frame (102). Support frames (105) are fixedly connected to the front and rear sides of both sides of the upright frame (107). Each support frame (105) is connected to the interior of the upright frame (107) through a connecting hole (137). Multiple diagonal braces (117) are fixedly connected to the middle of each support frame (105). Evenly distributed air inlets (111) are opened on the upper sides of both sides of each diagonal brace (117). Air pumps (139) are installed on both sides of the middle section of the upright frame (107). The input end of each air pump (139) is fixedly connected to a suction pipe (122), and the end of each suction pipe (122) is connected to the inside of the support frame (105). The output end of each air pump (139) is fixedly connected to an outlet pipe (123), and each outlet pipe (123) has evenly distributed central holes (138) on its outer periphery. The end of each outlet pipe (123) is fixedly connected to a cavity (141). A tabletop (101) is installed on the top of the support frame (105), and the bottom of the tabletop (101) is... A base plate (114) is installed, and multiple pressure sensors and vibration sensors are installed inside the base plate (114). A partition plate (113) is installed on the top of the base plate (114), and a heating plate (116) is installed on the top of the partition plate (113). Heating coils (115) are evenly distributed on the upper part of the heating plate (116). A base frame (110) is installed on the upper part of each support frame (105), and a support plate (119) is provided on the upper part of the base frame (110). 19) A turntable (120) is rotatably connected in the middle. A slot (126) is opened in the middle of the turntable (120). The bottom of the base frame (110) is provided with evenly distributed openings (112). A servo motor (133) is installed in the upper middle part of the base frame (110). A rotating frame (134) is fixedly connected to the top drive end of the servo motor (133). A limiting groove (136) is opened in the middle of one side of the rotating frame (134). A sliding column (127) is slidably connected inside the limiting groove (136).

2. A multifunctional table according to claim 1, characterized in that: A filter screen is installed inside the diagonal brace (117) on the side near the upright frame (107), and a dust collection chamber (106) is provided at the bottom of each support frame (105), and the dust collection chamber (106) is connected to the inside of the diagonal brace (117).

3. A multifunctional table according to claim 1, characterized in that: The lower part of the sliding column (127) is threadedly connected to a threaded rod (135). The threaded rod (135) is installed inside the limiting groove (136). A motor is installed at the end of the threaded rod (135). The motor at the end of the threaded rod (135) is installed inside the rotating frame (134). The upper part of the sliding column (127) is slidably connected inside the slot (126). A toothed ring (131) is fixedly connected to the middle of the outer periphery of the turntable (120). A fixed column (130) is installed on one side of the middle of the support plate (119). A hub motor (128) is installed on the outer periphery of the fixed column (130). An active tooth is fixedly connected to the outer periphery of the hub motor (128). The wheel (129) is meshed with the drive gear (129) on one side of the gear ring (131). Multiple guide beads (159) are installed on both sides of the support plate (119). Guide beads (158) are provided on the front and rear sides of the guide beads (159). Electric push rods are installed at the bottom of the guide beads (158) and guide beads (159). The electric push rods are installed inside the support plate (119). Vertically distributed guide grooves (156) and guide grooves (157) are opened at the bottom of the table (101). The size of the guide beads (158) and guide beads (159) corresponds to the guide grooves (156) and guide grooves (157) respectively.

4. A multifunctional table according to claim 1, characterized in that: The cavities (141) are all installed on both sides inside the top frame (102). At the center of the adjacent end of each cavity (141), evenly distributed air vents (140) are provided on both sides. Elastic mesh (103) belts are provided on both the front and rear sides inside the top frame (102). Multiple guide rollers (148) are provided inside each elastic mesh (103) belt. The upper guide rollers (148) are fixedly connected to the cavities (141) at their ends, and sliding frames (142) pass through the lower guide rollers (148). The sliding frames (142) are all located on... The lower inner side of the elastic net (103) and the lower outer side of the elastic net (103) are provided with guide rods (150). One end of each guide rod (150) is equipped with an electric motor. The electric motor is installed at one end of the cavity (141). The elastic net (103) is spliced ​​together from elastic nets (103) with different mesh sizes. Each elastic net (103) has evenly distributed horizontal strips (153) inside. The horizontal strips (153) are connected by multiple vertical strips one (154) and vertical strip two (155).

5. A multifunctional table according to claim 4, characterized in that: Each cavity (141) is fixedly connected to a mounting bracket (146) at its lower part. The upper part of the mounting bracket (146) is slidably connected to a sliding bracket (142). Each end of the sliding bracket (142) is fixedly connected to a fixing block (145). Each fixing block (145) is slidably connected to a fixing rod (147) through its middle part. Each fixing rod (147) is fixedly connected to both sides of the mounting bracket (146). Each fixing rod (147) is fitted with a top spring (144) on its upper outer periphery. Each top spring (144) is located on the upper part of the fixing block (145).

6. A multifunctional table according to claim 5, characterized in that: Stepper motors (149) are fixedly connected to both sides of the bottom center of the sliding frame (142). A lead screw (143) is fixedly connected to the top drive end of each stepper motor (149). The top of the lead screw (143) passes through the sliding frame (142) and is rotatably connected to the sliding frame (142). A lifting frame (125) is provided on the upper side of the sliding frame (142). The top of the lead screw (143) passes through the lifting frame (125) and is threadedly connected to the lifting frame (125). A rotating roller (152) is rotatably connected to the center of one side of the lifting frame (125). Multiple magnetic strips (151) with different magnetic strengths and widths are embedded on the outer periphery of the rotating roller (152). A motor is installed at one end of the shaft in the middle of the rotating roller (152). The motors at the ends of the rotating roller (152) are all installed on one side of the lifting frame (125).

7. A multifunctional table according to claim 1, characterized in that: The upper sides of both sides of the desktop (101) are provided with side guards (104), and the side guards (104) are installed on both sides of the top frame (102) by mortise and tenon structure.

8. A multifunctional table according to claim 1, characterized in that: A main unit compartment (109) is provided on one side of the support frame (105). A slide frame (108) is slidably connected to the lower part of the main unit compartment (109). A top compartment (118) is installed on the top of the main unit compartment (109). The bottom of the top compartment (118) is provided with evenly distributed openings. The rear of the top compartment (118) is connected to a connecting pipe (121). The end of the connecting pipe (121) away from the top compartment (118) is connected to the inside of the support frame (105).

9. A multifunctional table according to claim 1, characterized in that: The base frame (110) is equipped with evenly distributed connecting pipes (124) at one end near the upright frame (107). The connecting pipes (124) are used to connect the interior of the base frame (110) with the interior of the upright frame (107).

10. A method of using a multifunctional table, applied to the multifunctional table described in any one of claims 1-9, characterized in that: The following steps are included: S1, Workstation assembly: S1.

1. Place multiple desks side by side and use the tenon and mortise structure of the top frame (102) and the side guard plate (104) to interlock with each other, and rely on the side guard plate (104) to separate and form independent office workstations. S1.2 The computer host is pulled into the host compartment (109) through the slide (108), the power cord and data cable are connected, the host compartment (109) is closed, and the heating plate (116) can be connected to the power supply in cold conditions. The heating coil (115) heats up to heat the desktop (101) and improve the comfort of using the desk. S2, Desktop (101) Dynamic Adaptive Support Usage: S2.1 When the user is working at the desk, the pressure sensor and vibration sensor built into the base plate (114) collect the pressure and vibration data of the desktop (101) in real time, and locate the area of ​​force on the keyboard and arm. S2.2 Start the servo motor (133) to drive the rotating frame (134) to rotate, and the threaded rod (135) is driven by the matching motor to rotate, control the slide column (127) to slide in the limit groove (136) and accurately adjust the movement stroke of the support plate (119); S2.3 The hub motor (128) drives the drive gear (129) to mesh with the gear ring (131), which drives the turntable (120) to rotate and switch the orientation of the slot (126): When the slot (126) is horizontal, the electric push rod lifts the first guide bead (158) and inserts it into the first guide groove (156) of the table (101), and the support plate moves back and forth; when the slot (126) is vertical, the second guide bead (159) lifts and inserts into the second guide groove (157), and the support plate moves left and right; S2.4 The system control support plate (119) moves to the position below the stress point of the desktop (101) to support the local pressure area of ​​the desktop (101) and prevent the desktop (101) from being deformed by long-term pressure. S3. Dust removal, heat dissipation, and bottom air disturbance operation: S3.

1. Turn on the air pumps (139) on both sides inside the stand (107). The air pumps (139) draw air from the tabletop (101) through the air inlet (111) of the air extraction pipe (122), support frame (105) and diagonal brace (117), and at the same time connect to the top chamber (118) through the connecting pipe (121) to draw air from the bottom opening of the top chamber (118) to the main unit chamber (109). S3.2 Dust in the air is intercepted by the filter screen inside the inclined brace (117), and the dust falls along the inclined brace (117) into the dust collection bin (106) at the bottom of the support frame (105). The dust collection bin (106) is periodically removed for unified dust removal. S3.3 The airflow continuously removes the residual heat from the main unit's operation inside the main unit compartment (109), achieving passive heat dissipation for the main unit; S3.

4. The air outlet pipe (123) has a central hole (138) that separates part of the airflow, which is then sent into the base frame (110) through the connecting pipe (124). The air is then discharged downwards through the bottom opening (112) of the base frame, disturbing the air under the table and assisting the air conditioning to distribute the hot and cold airflow evenly in the work area. S4. Graded adjustment of fresh air volume at the top of the workstation: S4.1 Overall screen replacement and air volume adjustment: Excess gas from the air pump (139) is sent into the cavity (141) through the air outlet pipe (123), and discharged into the top frame (102) from the air outlet (140) of the cavity (141), passing through the elastic net (103) to form fresh air at the work station; start the electric motor on the side of the cavity (141) to drive the guide rod (150) to rotate, and pull the entire elastic net (103) to rotate. Replace the elastic net (103) section with different mesh specifications and align it with the work station. The coarse mesh has a large air volume, and the fine mesh has a gentle air outlet. S4.2, Local deformation fine-tuning air volume: Start the stepper motor (149) below the sliding frame (142), and the screw (143) drives the lifting frame (125) to rise and fall, driving the rotating roller (152) to approach the elastic net (103). S4.3 The rotating roller (152) is equipped with a motor that switches the magnetic strips (151) with different magnetic forces and widths on the surface of the roller body. It relies on the magnetic force to pull the horizontal strips (153) inside the elastic net (103), stretch the first vertical strip (154) and the second vertical strip (155), change the size of the local mesh opening, and precisely adjust the single-point air volume. S4.4 The top spring (144) on the mounting bracket (146) is always pressed against the fixing block (145) to keep the sliding bracket (142) and the elastic net (103) taut, ensuring that the elastic net (103) can be adjusted smoothly.

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