A large industrial side sliding door

Abstract

The application provides a large industrial side sliding door, and belongs to the technical field of industrial side sliding doors.The large industrial side sliding door comprises a warehouse and a door plate, the door plate is installed on the left and right sides of a warehouse door and slides along the left and right directions of the warehouse door, further comprises a fixing piece, a supporting and limiting assembly and a driving assembly, the supporting and limiting assembly is used for supporting and reinforcing the door plate after the door plate is closed, the fixing piece is fixedly installed at the top middle part of the warehouse door and is used for fixing the supporting and limiting assembly, the supporting and limiting assembly comprises two supporting and limiting plates which are symmetrically arranged and extend along the vertical direction, and the side away from each other of the two supporting and limiting plates is provided with a supporting clamping groove which extends along the length direction of the supporting and limiting plate and is used for clamping and supporting the side edge of the door plate after the door plate is closed. The top of the supporting and limiting plate is hinged to the fixing piece. The transverse shaking of the door plate under the action of strong wind is effectively limited, and the operation stability and safety of the large industrial side sliding door under the condition of bad weather are improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of industrial side sliding doors, and particularly relates to a large industrial side sliding door. BACKGROUND

[0002] The large industrial side sliding door is a large door body specially designed for an industrial scene, which is opened in a side sliding manner and slides along a track to a side, without occupying additional space indoors and outdoors. The door body is usually formed by extrusion of double-layer aluminum alloy or galvanized steel plate, and is filled with high-density polyurethane foam material. However, the transverse sliding structure of the side sliding door is easy to sway under strong wind.

[0003] A side sliding door with an anti-swing function is disclosed in Chinese Patent No. CN222962721U, which comprises a door frame and a door body. The door frame and the door body are connected by a rotating shaft. The door frame is provided with a first single sliding rail and a second single sliding rail which are in rolling cooperation with the door body. The lower end of the door body is provided with a support position. The door body is pushed to drive the support position of the door body to move along the second single sliding rail. In this scheme, the upper end of the door body has a support point with the first single sliding rail, and the lower end of the door body has a second support point with the second single sliding rail, so that the door body does not sway during movement.

[0004] The existing large industrial side sliding door is supported and limited by the sliding rails arranged at the top and bottom thereof. However, due to the large area of the door panel of the side sliding door, the wind resistance area is large after the side sliding door is closed, which affects the supporting performance of the sliding rails on the door panel, so that the side sliding door is easy to sway under strong wind in the closed state. SUMMARY

[0005] The purpose of the present application is to provide a large industrial side sliding door, which aims to solve the problem that the area of the door panel of the large industrial side sliding door is large, the wind resistance area is large after the side sliding door is closed, which affects the supporting performance of the sliding rails on the door panel, so that the side sliding door is easy to sway under strong wind in the closed state.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a large industrial side sliding door, comprising a warehouse and a door panel, the door panel is installed on the left and right sides of the warehouse door and slides along the left and right directions of the warehouse door, further comprising a fixing member, a support and limiting assembly, and a driving assembly, the support and limiting assembly is used to support and reinforce the door panel after it is closed.

[0007] The fixing piece is fixedly installed in the middle of the top of the warehouse door, and is used for fixing the support limiting assembly. The support limiting assembly comprises two support limiting plates which are symmetrically arranged and extend in the vertical direction. The side of each support limiting plate away from the other support limiting plate is provided with a support clamping groove which extends along the length direction of the support limiting plate, and is used for clamping and supporting the side of the door plate after the door plate is closed. The top of the support limiting plate is hingedly connected with the fixing piece. The driving assembly is installed on the fixing piece, and is used for driving the support limiting plate to rotate from the vertical state to the horizontal state after the door plate is opened.

[0008] The large industrial side sliding door is closed, and the side of the door plate close to the support limiting plate is smoothly clamped into the support clamping groove of the support limiting plate. With the cooperation of the fixing piece and the support limiting assembly, the support limiting plate can clamp and support the side of the door plate. In this way, the door plate obtains additional lateral support and reinforcement in the closed state, effectively limits the lateral shaking of the door plate under the action of strong wind, and significantly improves the running stability and safety of the large industrial side sliding door in bad weather conditions. When the industrial side sliding door is opened, the driving assembly drives the support limiting plate to rotate from the vertical state to the horizontal state, so that the support limiting plate is not located in the middle of the warehouse door after the side sliding door is opened, and the situation that the goods in the warehouse cannot be taken out is avoided.

[0009] The fixing piece is an I-shaped steel, the upper flange of the fixing piece is fixedly installed on the top of the warehouse door, the top of the support limiting plate is fixedly installed with a connecting block, the connecting block is fixedly installed with a connecting shaft which extends along the front-rear direction, and the two ends of the connecting shaft are rotatably installed on the two inner side walls of the lower flange of the I-shaped steel.

[0010] The effect is that the fixing piece is designed as an I-shaped steel, and the upper flange of the fixing piece is firmly installed on the top of the warehouse door, so that the fixing piece provides a high-strength and high-stability basic support for the entire support limiting system, and effectively avoids the problem of unstable installation caused by the structure of the fixing piece.

[0011] The driving assembly comprises a driving motor which is fixedly installed on the outer wall of the fixing piece. The output shaft of the driving motor is drivingly connected with a driving screw which extends along the vertical direction. The surface of the driving screw is threadedly connected with a transmission sliding block which abuts against and slides along the outer wall of the fixing piece. The two sides of the transmission sliding block are drivingly installed with transmission rods which are rotatably connected with the outer walls of the two support limiting plates, and the rotation axes of the transmission rods extend along the front-rear direction.

[0012] The outer walls of the two ends of the driving screw are provided with support pieces which are fixedly connected with the outer wall of the fixing piece. The two ends of the driving screw are rotatably penetrated through the two support pieces.

[0013] The transmission rod is connected to the support limiting plate at one end, and a hinge shaft with its axis extending in the front-rear direction is provided. One end of the hinge shaft is fixedly installed on the outer wall of the support limiting plate, and the other end of the hinge shaft rotatably passes through the transmission rod.

[0014] Its effect is that when the drive motor starts, the drive screw drives the transmission slider to move in the vertical direction. The linear motion of the transmission slider, through the pushing and pulling action of the transmission rod, enables the two support limit plates to rotate smoothly and reliably from the vertical state to the horizontal state.

[0015] A fixed support assembly is fixedly installed at the bottom center of the warehouse door. A limit locking assembly that slides vertically is sleeved on the fixed support assembly. The fixed support assembly and the limit locking assembly cooperate with each other to fix the bottom of the support limit plate when the door is closed.

[0016] The fixed support assembly includes a fixed block, a storage groove on the top of the fixed block, a sliding top plate that slides in the storage groove along the vertical direction, and an elastic reset member that is fixedly connected between the bottom of the sliding top plate and the bottom wall of the storage groove.

[0017] The limiting latching assembly includes a limiting latching block, which is slidably connected to a storage groove. The top of the limiting latching block has a limiting latching groove for storing the bottom of the supporting limiting plate when the door panel is in use.

[0018] The effect is that the fixed support component and the limiting snap-fit ​​component work together to fix and support the bottom of the support limiting plate. This cooperation ensures that after the door panel is closed, the support limiting plate is not only supported from the top, but its bottom is also effectively fixed, thus forming a stable support structure. This solves the swaying problem caused by the lack of bottom support, effectively enhances the overall wind resistance and anti-swaying ability of the door panel, and improves the reliability of the door in strong wind environments.

[0019] A first sliding groove extending along its length is provided on the bottom wall of the support slot, and a second sliding groove extending along its length is provided on the side of the support limiting plate away from the support slot. The first and second sliding grooves are connected to each other. A connecting slider is slidably installed in the first sliding groove along its length. A connecting limiting post extending vertically is fixedly installed on the inner bottom wall of the limiting slot. Two connecting rods are rotatably connected to the top left and right sides of the connecting limiting post. The two connecting rods are rotatably connected to the connecting sliders through the second sliding grooves on the two support limiting plates, respectively. The axis of rotation of the connecting rods at both ends of the rotatable connection extends in the front-back direction.

[0020] The connecting slider is provided with a connecting part that extends into the second slide groove. The connecting part is slidably connected to the second slide groove, and one end of the connecting rod is hinged to the connecting part.

[0021] Its effect is that after the door panel is closed, the connecting slider and the connecting limit post are respectively engaged in the first and second slide grooves of the two support limit plates, which can strengthen the strength of the two support limit plates in the front and rear directions, thereby providing more stable and reliable support and reinforcement for the door panel, effectively resisting the influence of external wind force, and significantly improving the anti-shaking performance and structural stability of large industrial side sliding doors in the closed state.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] When the large industrial sliding door is closed, the side of the door panel near the support limiting plate smoothly engages with the support slot on the support limiting plate. Through the coordinated action of the fasteners and the support limiting assembly, the support limiting plate provides locking support to the side of the door panel. This provides additional lateral support and reinforcement to the door panel when closed, effectively limiting its lateral sway under strong winds and significantly improving the operational stability and safety of the large industrial sliding door in adverse weather conditions. When the industrial sliding door is opened, the drive assembly rotates the support limiting plate from a vertical to a horizontal position, thus preventing the support limiting plate from being positioned in the middle of the warehouse door after the sliding door is opened, which could obstruct the entry and exit of goods inside the warehouse. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main structure of the industrial sliding door in this invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the support and limiting device in the side sliding door closed state according to the present invention;

[0026] Figure 3 This is a schematic diagram of the front sectional view of the supporting and limiting device of the present invention in the closed state of the sliding door;

[0027] Figure 4 This is a side view of the supporting and limiting device in the side sliding door closed state according to the present invention;

[0028] Figure 5 This is a rear view schematic diagram of the supporting and limiting device in the side sliding door closed state according to the present invention;

[0029] Figure 6 This is a three-dimensional structural diagram of the support and limiting device in the present invention when the side sliding door is open;

[0030] Figure 7 This is a side cross-sectional view of the supporting and limiting device of the present invention in the open state of the sliding door;

[0031] Figure 8 This is a top view of the supporting and limiting device in the side sliding door open state.

[0032] Figure 9 This is a schematic diagram of the front sectional view of the fixed support block in this invention.

[0033] In the diagram: 1. Warehouse; 2. Door panel; 3. Fixed support assembly; 31. Fixing block; 32. Storage slot; 33. Sliding top plate; 34. Elastic reset component; 4. Fixing component; 5. Support limiting assembly; 51. Support limiting plate; 511. Connecting block; 512. Connecting shaft; 52. Support slot; 53. First slide groove; 54. Second slide groove; 55. Connecting slider; 551. Connecting part; 56. Connecting rod; 6. Limiting snap-fit ​​assembly; 61. Limiting snap-fit ​​block; 611. Limiting snap-fit ​​groove; 62. Connecting limiting post; 7. Drive assembly; 71. Drive motor; 72. Drive screw; 721. Support component; 73. Transmission slider; 74. Transmission rod; 741. Hinge shaft. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0035] Please see Figures 1-9 The present invention provides the following technical solution: a large industrial sliding door, comprising a warehouse 1, a door panel 2, and a reinforcement device for supporting and reinforcing the door panel 2. The door panel 2 is installed on the left and right sides of the warehouse door and slides along the left-right direction of the door.

[0036] The reinforcement device includes a fixed support assembly 3, a fastener 4, a support limiting assembly 5, a limiting snap-fit ​​assembly 6, and a drive assembly 7.

[0037] refer to Figure 1 As shown, Warehouse 1 is the main building structure where a large industrial sliding door is installed, and its door is the area where door panel 2 slides open and closes. Door panel 2 is the main part of the large industrial sliding door, which slides along the left and right directions of the warehouse 1 door to open or close.

[0038] refer to Figure 3 and Figure 9 As shown, the fixed support assembly 3 is fixedly installed at the bottom center of the warehouse 1 door. Its main function is to provide a stable installation base and support point for the limit locking assembly 6. This assembly is a structural component used to provide a stable base and load-bearing capacity. It can be a simple base with a structure on top for guiding and accommodating the limit locking assembly 6; or it can be a box structure welded from high-strength steel, filled with concrete to enhance stability, and firmly anchored to the ground with anchor bolts. Alternatively, the fixed support assembly 3 can also be a cast or forged integral metal block with mounting holes at the bottom, which is tightly connected to the ground structure at the bottom of the warehouse 1 door using expansion bolts or chemical anchors.

[0039] In this embodiment, the fixed support assembly 3 includes a fixed block 31, and a storage groove 32 is provided on the top of the fixed block 31. A sliding top plate 33 is slidably sleeved in the storage groove 32 along the vertical direction. An elastic reset member 34 is fixedly connected between the bottom of the sliding top plate 33 and the bottom wall of the storage groove 32. The elastic reset member 34 can be a spring, an elastic sheet, or other elastic components.

[0040] refer to Figure 2 As shown, the fastener 4 is fixedly installed at the top center of the warehouse 1 door to secure the support and limiting assembly 5, providing a stable base for the entire support system. The fastener 4 can be designed as a high-strength metal plate or profile, and is securely installed at the top center of the warehouse 1 door through welding, bolting, or other methods. This fastener 4 provides a stable mounting point for the support and limiting assembly 5, ensuring that the support and limiting assembly 5 can withstand the reaction force from the door panel 2 during operation.

[0041] In this embodiment, the fixing component 4 is an H-beam, with its upper flange fixedly installed on the top of the warehouse door 1. One end of the support and limiting component 5 is rotatably installed on the two inner side walls of the lower flange of the H-beam. There are several ways to fix the upper flange of the H-beam: high-strength bolts can be used to tightly connect the upper flange to the embedded parts or structural beams at the top of the warehouse door; the upper flange can also be directly welded to the metal structure at the top of the warehouse door to form an integrated connection; or it can be fixed by riveting or other methods.

[0042] refer to Figures 2-4 As shown, the support and limiting assembly 5 is a mechanism used to support and reinforce the door panel 2 after it is closed. This assembly includes two vertically extending support and limiting plates 51, which are symmetrically distributed about the center line of the door. On the side of each support and limiting plate 51 that is furthest from each other, there are support slots 52 extending along their length, which are used to engage and support the side of the door panel 2 after it is closed. A connecting block 511 is fixedly installed on the top of the support and limiting plate 51, and a connecting shaft 512 with its axis extending in the front-rear direction is fixedly installed on the connecting block 511. The two ends of the connecting shaft 512 are rotatably mounted on the two inner sidewalls of the lower flange of the I-beam, thereby achieving a hinged connection between the top of the support and limiting plate 51 and the fixing member 4.

[0043] The connecting block 511 serves as an intermediate connector between the support limiting plate 51 and the fixing member 4. Its function is to provide a structural transition, facilitating the installation of the support limiting plate 51 and the connecting shaft 512, and can be used to adjust the installation position or distribute stress. The connecting block 511 can be a solid or hollow metal block, fixed to the top of the support limiting plate 51 by welding, bolting, or riveting. The connecting shaft 512 is the core component enabling the rotational movement of the support limiting plate 51. Its axis extends in the front-to-back direction, and the support limiting plate 51 will swing around this axis, thereby achieving the transition from a vertical to a horizontal state. The connecting shaft 512 can be a solid cylindrical steel shaft, fixed to the connecting block 511 by interference fit, key connection, or welding.

[0044] refer to Figure 6 and Figure 7 As shown, each of the two support limiting plates 51 has a first sliding groove 53 extending along its length on the bottom wall of the support slot 52. Each of the two support limiting plates 51 has a second sliding groove 54 extending along its length on the side away from the support slot 52. The first sliding groove 53 and the second sliding groove 54 on the same support limiting plate 51 are interconnected. A connecting slider 55 is slidably installed in each of the two first sliding grooves 53 along its length. Each of the two connecting sliders 55 has a connecting part 551 extending into the second sliding groove 54. A connecting rod 56 is installed on each connecting part 551 of the two connecting sliders 55. One end of each connecting rod 56 is rotatably connected to the connecting part 551 of the two connecting sliders 55, and the other end of each connecting rod 56 is rotatably connected to the top of the limiting clamping assembly 6. The axis of rotation of the connecting rod 56 at both ends extends in the front-back direction. This rotatable connection can be achieved through a pin connection.

[0045] The limiting latching component 6 slides vertically onto the fixed support component 3. When the door panel 2 is closed, the fixed support component 3 and the limiting latching component 6 cooperate with each other to fix and support the bottom of the supporting limiting plate 51.

[0046] The limiting latching assembly 6 includes a limiting latching block 61, which is slidably connected to the storage groove 32. A limiting latching groove 611 is formed on the top of the limiting latching block 61 for storing the bottom of the supporting limiting plate 51 when the door panel 2 is closed. The slidable connection between the limiting latching block 61 and the storage groove 32 can be achieved in various ways. The bottom or side of the limiting latching block 61 can be designed with a dovetail groove structure, which cooperates with the corresponding dovetail-shaped slide rail on the inner wall of the storage groove 32 to achieve smooth sliding with a certain self-locking function; alternatively, the limiting latching block 61 can be designed as a rectangular slider, sliding in a pre-set rectangular slide rail within the storage groove 32, ensuring smooth sliding without significant wobbling through precise fit tolerances.

[0047] The inner bottom wall of the limiting slot 611 is fixedly installed with a connecting limiting post 62 extending in the vertical direction, and one end of each of the two connecting rods 56 is rotatably connected to the top of the connecting limiting post 62.

[0048] refer to Figure 5 , Figure 7 and Figure 8 As shown, the drive assembly 7 is mounted on the fixing member 4. The drive assembly 7 is a mechanism for driving the support limiting assembly 5 to move, which enables the support limiting plate 51 to rotate from a vertical state to a horizontal state after the door panel 2 is opened, so that the items in the warehouse 1 can be transported to the outside through the warehouse door.

[0049] The drive assembly 7 can be installed outside or inside the fixture 4, and its function is to provide power to rotate the support limiting plate 51. The drive assembly 7 includes a drive motor 71 fixedly installed on the outer wall of the fixture 4. A drive screw 72 with its axis extending vertically is drivenly connected to the output shaft of the drive motor 71. A transmission slider 73 is threadedly connected to the surface of the drive screw 72. The transmission slider 73 abuts against the outer wall of the fixture 4 and slides along its surface. Transmission rods 74 are drivenly installed on both sides of the transmission slider 73 between the outer walls of the two support limiting plates 51, respectively. The two ends of the transmission rods 74 are rotatably connected to the support limiting plate 51 and the transmission slider 73, respectively, and the axis of the rotation shaft extends in the front-back direction.

[0050] The drive motor 71, as the power source of the drive assembly 7, converts electrical energy into mechanical energy to provide the initial driving force for supporting the rotation of the limiting plate 51. The drive motor 71 can be of various types; for example, an AC motor can be selected, which has advantages such as simple structure, reliable operation, and convenient maintenance; or a DC motor can be selected, which has characteristics such as good speed regulation performance and large starting torque. The appropriate type can be chosen based on the precise control requirements of speed and torque in the actual application scenario.

[0051] The drive screw 72 is a key component for converting rotary motion into linear motion. The output shaft of the drive motor 71 drives the screw 72 to rotate via a transmission connection, thereby causing the transmission slider 73, which is threaded onto it, to move linearly along its axis. The drive screw 72 can use a trapezoidal thread or a ball thread. In this embodiment, a trapezoidal thread is used, which has the advantages of good self-locking and low manufacturing cost.

[0052] Both ends of the outer wall of the drive screw 72 are provided with support members 721. The support members 721 are fixedly connected to the outer wall of the fixing member 4. The two ends of the drive screw 72 rotate through the two support members 721 respectively. The support members 721 are used to provide axial and radial support for the drive screw 72 to ensure its stability during rotation and reduce swaying and bending.

[0053] The support member 721 can be designed with a bearing housing, in which rolling or sliding bearings are installed. The two ends of the drive screw 72 are connected to the support member 721 through the bearings, thereby achieving low-friction rotational support. Alternatively, the support member 721 can also be a simple U-shaped or L-shaped bracket with holes. The two ends of the drive screw 72 pass directly through the holes and are limited and supported by bushings or washers to provide basic stability.

[0054] The support member 721 is fixedly connected to the outer wall of the fixing member 4, ensuring that the support member 721 and the fixing member 4 form a stable whole. This effectively transmits the force and vibration of the drive screw 72 to the more robust fixing member 4, improving the rigidity and stability of the entire drive system. This fixed connection can be achieved by firmly fixing the support member 721 to the outer wall of the fixing member 4 with bolts, nuts, and washers; or by welding the support member 721 to the outer wall of the fixing member 4 to form an integrated structure.

[0055] The two ends of the drive screw 72 rotatably pass through two support members 721, meaning the axis of the drive screw 72 passes through the support member 721 and can rotate freely within it. Simultaneously, the support member 721 effectively constrains the radial and axial position of the drive screw 72, preventing displacement or wobbling. The two ends of the drive screw 72 can be machined into journals to mate with bearings or bushings inside the support member 721 for smooth rotation; alternatively, the two ends of the drive screw 72 can directly pass through pre-drilled holes in the support member 721, with wear-resistant bushings installed at these holes to reduce friction and provide support.

[0056] The transmission slider 73 serves as an intermediate transmission component between the drive screw 72 and the transmission rod 74, transmitting the linear motion of the drive screw 72 to the transmission rod 74. The transmission slider 73 abuts against the outer wall of the fixing member 4 and slides along its surface, ensuring stable guidance during linear motion. The transmission slider 73 can employ a slider structure with threaded holes, and its material can be wear-resistant engineering plastic or metal.

[0057] The transmission rod 74 is used to convert the linear motion of the transmission slider 73 into the rotational motion of the support limiting plate 51. Both ends of the transmission rod 74 are rotatably connected to the support limiting plate 51 and the transmission slider 73, respectively, and the axis of rotation extends in the front-rear direction. This connection method allows the transmission rod 74 to adapt to the geometric relationship between the linear motion of the transmission slider 73 and the rotational motion of the support limiting plate 51. The transmission rod 74 can be a solid or hollow rod.

[0058] The transmission rod 74 is connected to the support limiting plate 51 at one end, and a hinge shaft 741 with its axis extending in the front-back direction is provided. One end of the hinge shaft 741 is fixedly installed on the outer wall of the support limiting plate 51, and the other end of the hinge shaft 741 rotatably passes through the transmission rod 74.

[0059] The hinge shaft 741 is a mechanical component used to achieve a rotational connection. Its axis extends in the front-rear direction, designed to define a rotational motion about this axis. This specific axial direction helps limit the degrees of freedom at the connection, allowing it to rotate primarily within a predetermined plane, thereby avoiding unnecessary lateral or vertical swaying. In one embodiment, the hinge shaft 741 can be a cylindrical pin fixed to the support limiting plate 51 by welding or threaded connection, passing through a hole in the transmission rod 74. In another embodiment, the hinge shaft 741 can also be a protrusion integrally formed on the outer wall of the support limiting plate 51, having a cylindrical or near-cylindrical cross-section and engaging with a corresponding hole in the transmission rod 74.

[0060] One end of the hinge shaft 741 is fixedly mounted on the outer wall of the support limiting plate 51. This fixed mounting method ensures a firm, non-moving connection between the hinge shaft 741 and the support limiting plate 51. This fixing method provides a stable fulcrum for the rotation of the transmission rod 74, thereby ensuring the reliability and rigidity of the connection. For example, one end of the hinge shaft 741 can be firmly fixed to the outer wall of the support limiting plate 51 by welding, riveting, bolting, etc. Alternatively, the hinge shaft 741 can be integrally formed on the outer wall of the support limiting plate 51 during the manufacturing process to achieve a stronger fixing effect and structural integrity.

[0061] The other end of the hinge shaft 741 rotatably passes through the transmission rod 74, meaning that the hinge shaft 741 passes through a hole in the transmission rod 74, and the transmission rod 74 can rotate freely around the hinge shaft 741. This connection method allows the transmission rod 74 to drive the support limiting plate 51 to rotate under the action of the drive assembly 7, while maintaining the stability and smoothness of the connection. For example, a through hole matching the diameter of the hinge shaft 741 can be opened on the transmission rod 74, through which the hinge shaft 741 passes, and is limited on both sides of the transmission rod 74 by structures such as retaining rings, washers, or shoulders to prevent the transmission rod 74 from detaching axially, while allowing it to rotate freely.

[0062] The implementation principle of this invention is as follows: When the door panel 2 needs to be closed, the drive motor 71 is started, which drives the drive screw 72 to rotate. The drive screw 72 drives the transmission slider 73 to descend along the axis of the drive screw 72 through the threaded connection with the transmission slider 73. At this time, the transmission slider 73 drives the support limiting plate 51 to rotate around the connecting shaft 512 through the transmission rod 74, so that the support limiting plate 51 gradually rotates from the horizontal state to the vertical state.

[0063] As the supporting limiting plate 51 rotates, the limiting locking block 61 and the connecting limiting post 62 begin to descend synchronously under their own weight. At the same time, the connecting limiting post 62 drives the connecting slider 55 to slide along the first sliding groove 53 away from the fixing member 4 via the connecting rod 56. When the limiting locking block 61 descends to the receiving groove 32 and contacts the top of the sliding top plate 33, the limiting locking block 61 can no longer descend automatically under the action of the elastic reset member 34. The operator needs to manually lower the limiting locking block 61 to drive the sliding top plate 33 and compress the elastic reset member 34. When the two support limiting plates 51 rotate to the vertical position, the two support limiting plates 51 are just above the limiting locking block 61. At this time, the operator no longer applies external force to the limiting locking block 61, so that the limiting locking block 61 rises under the action of the sliding top plate 33 and the elastic reset member 34, so that the bottom of the two support limiting plates 51 just locks into the limiting locking groove 611. Finally, push the door panel 2 to close it. At this time, the side of the door panel 2 near the support limiting plate 51 locks into the support locking groove 52.

[0064] When door panel 2 is opened, the operator manually causes the limit locking block 61 to lower the sliding top plate 33 and compress the elastic reset piece 34. At this time, the limit locking groove 611 on the limit locking block 61 disengages from the support limit plate 51. Then, the drive motor 71 is started, causing it to drive the drive screw 72 to rotate in the opposite direction. This causes the drive screw 72 to drive the transmission slider 73 to rise along the axis of the drive screw 72 through the threaded connection with the transmission slider 73. The transmission slider 73 drives the support limit plate 51 to rotate around the connecting shaft 512 through the transmission rod 74, causing the support limit plate 51 to gradually rotate from a vertical state to a horizontal state. At the same time, the limit locking block 61 and the connecting limit post 62 also begin to rise under the rotation of the support limit plate 51.

[0065] Although embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention.

Claims

1. A large industrial side sliding door comprising a warehouse and door panels installed on the left and right sides of the warehouse door and sliding in the left and right directions of the warehouse door, characterized in that, Further comprising a fixing part, a supporting and limiting assembly and a driving assembly, the supporting and limiting assembly is used for supporting and reinforcing the door plate after it is closed; The fixing part is fixedly installed at the middle of the top of the warehouse door, and is used for fixing the supporting and limiting assembly; The supporting and limiting assembly comprises two supporting and limiting plates which are symmetrically arranged and extend along the vertical direction, and the two supporting and limiting plates are both provided with a supporting and limiting slot which extends along the length direction of the supporting and limiting plate, and is used for clamping and supporting the side edge of the door plate after it is closed; The top of the supporting and limiting plate is hingedly connected with the fixing part, and the driving assembly is installed on the fixing part and is used for driving the supporting and limiting plate to rotate from the vertical state to the horizontal state after the door plate is opened; The fixing part is an I-shaped steel, and the upper flange thereof is fixedly installed at the top of the warehouse door, the top of the supporting and limiting plate is fixedly installed with a connecting block, the connecting block is fixedly installed with a connecting shaft which extends along the front and back direction, and the two ends of the connecting shaft are rotatably installed on the two inner side walls of the lower flange of the I-shaped steel; The driving assembly comprises a driving motor which is fixedly installed on the outer wall of the fixing part, the output shaft of the driving motor is drivingly connected with a driving screw which extends along the vertical direction, the surface of the driving screw is threadedly connected with a transmission sliding block which abuts against and slides along the outer wall of the fixing part, and the two sides of the transmission sliding block are both drivingly installed with a transmission rod between the outer wall of the two supporting and limiting plates, the two ends of the transmission rod are rotatably connected with the supporting and limiting plate and the transmission sliding block, and the rotation axis of the transmission rod extends along the front and back direction; The end of the transmission rod which is connected with the supporting and limiting plate is provided with a hinge shaft which extends along the front and back direction, one end of the hinge shaft is fixedly installed on the outer wall of the supporting and limiting plate, and the other end of the hinge shaft rotatably penetrates the transmission rod.

2. A large industrial side sliding door according to claim 1, characterized in that: The outer wall of the driving screw is provided with a supporting part at each end, the supporting part is fixedly connected with the outer wall of the fixing part, and the two ends of the driving screw rotatably penetrate the two supporting parts.

3. A large industrial side sliding door according to claim 1, characterized in that: The bottom middle of the warehouse door is fixedly installed with a fixing and supporting assembly, the fixing and supporting assembly is sleeved with a limiting clamping assembly which slides along the vertical direction, and the fixing and supporting assembly and the limiting clamping assembly are matched with each other and are used for fixing and supporting the bottom of the supporting and limiting plate when the door plate is closed.

4. A large industrial side sliding door according to claim 3, characterized in that: The fixing and supporting assembly comprises a fixed block, the top of the fixed block is provided with a receiving groove, a sliding top plate is slidingly sleeved in the receiving groove along the up and down direction, and the bottom of the sliding top plate is fixedly connected with an elastic reset part between the bottom wall of the receiving groove.

5. A large industrial side sliding door according to claim 4, characterized in that: The limiting clamping assembly comprises a limiting clamping block, the limiting clamping block is slidingly connected between the receiving groove, and the top of the limiting clamping block is provided with a limiting clamping slot which is used for receiving the bottom of the supporting and limiting plate when the door plate is closed.

6. A large industrial side sliding door according to claim 5, characterized in that: The bottom wall of the support clamping groove is provided with a first sliding groove extending along the length direction thereof, and the side of the support limiting plate away from the support clamping groove is provided with a second sliding groove extending along the length direction thereof, the first sliding groove and the second sliding groove are communicated with each other, a connecting sliding block is slidingly installed in the first sliding groove along the length direction thereof, the inner bottom wall of the limiting clamping groove is fixedly installed with a connecting limiting column extending along the vertical direction, the top of the connecting limiting column is rotatably connected with two connecting rods on the left and right sides, the two connecting rods are rotatably connected with the connecting sliding block through the second sliding grooves on the two support limiting plates, and the axis lines of the rotating shafts of the two ends of the connecting rods rotatably connected are all extended along the front and back directions.

7. A large industrial side sliding door according to claim 6, characterized in that: A connecting part extending into the second sliding groove is arranged on the connecting sliding block, the connecting part is slidingly connected with the second sliding groove, and one end of the connecting rod is hingedly connected with the connecting part.

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