A side door plate opening and closing mechanism of a shelter

Abstract

A kind of shelter side door plate opening and closing mechanism, including two groups of pull rope that symmetrically arranged pull side door plate up and down opening and closing, change and limit the pulley block group of pull rope course, pull rope mechanism, reel and reel drive mechanism;Two groups of pull rope one end are connected with the two sides of side door plate respectively, and the other end of each group of pull rope passes through the limiting hole of corresponding pull rope mechanism, is fixed on reel, reel drive mechanism drives reel rotation, and pull rope mechanism makes pull rope sequentially wind on reel;The two groups of reel are started simultaneously;Pulley block group changes the course of pull rope so that pull rope adapts the installation position of pull rope mechanism and reel, and at least one of pulley block in pulley block group is installed above the side door plate. When side door plate up and down opening operation, the pulling speed of two sides of steel wire rope is consistent, solve the problem of deformation damage of side door plate being pulled.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical design technology, specifically relating to a side door opening and closing mechanism for a modular cabin. Background Technology

[0002] As modular shelters are increasingly used in both industrial and civilian applications, their types have also diversified. One type of shelter features side doors that can be flipped down using a bottom pivot. This is achieved by installing a winch on each side of the door and using steel cables to pull the doors down. However, this design presents several problems: 1. The winches often operate asynchronously; 2. The steel cables become overlapping and tangled on the winches. This results in uneven pulling and releasing speeds on both sides of the cable, leading to inconsistent lowering heights of the side doors. This can cause door deformation and damage, resulting in economic losses.

[0003] Therefore, a modular shelter side door opening and closing mechanism is needed to solve the above problems. Summary of the Invention

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a cabin side door opening and closing mechanism.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A side door panel opening and closing mechanism for a modular shelter, characterized in that it includes two sets of pull ropes symmetrically arranged to pull the side door panel up and down, a fixed pulley group for changing and limiting the direction of the pull ropes, a rope-pulling mechanism, a reel, and a reel drive mechanism.

[0007] One end of each of the two sets of pull ropes is connected to both sides of the side door panel. The other end of each set of pull ropes passes through the limiting hole of the corresponding rope-pulling mechanism and is fixed on the roller. The roller drive mechanism drives the roller to rotate, and the rope-pulling mechanism causes the pull ropes to be wound sequentially on the roller. The two sets of rollers start and stop simultaneously.

[0008] The fixed pulley block changes the direction of the pull rope to adapt the pull rope to the installation position of the rope pulling mechanism and the reel. At least one fixed pulley in the fixed pulley block is installed above the side door panel.

[0009] The rope-pulling mechanism includes a base plate, a lead screw fixed on the base plate, a guide shaft installed parallel to the lead screw, and a rope limiting plate.

[0010] The two ends of the lead screw are fixed by bearing seats C. A lead screw nut is installed on the lead screw, and the lead screw nut is slidably connected to the lead screw. The pitch of the lead screw is greater than or equal to the diameter of the pull rope.

[0011] A guide block is mounted on the guide shaft, and the guide block is slidably connected to the guide shaft.

[0012] The guide block and the lead screw nut are fixed together by a connecting plate, which is fixedly connected to the rope limiting plate, and the rope limiting plate has a limiting hole.

[0013] Furthermore, the lead screw 21 is a trapezoidal lead screw or a ball screw.

[0014] The reel and the lead screw on the rope-pulling mechanism are arranged parallel to each other and are not zero apart. The reel and the lead screw are connected by synchronous transmission.

[0015] Furthermore, the synchronous transmission device adopts a sprocket transmission device, a synchronous belt (toothed belt) transmission device, or a gear transmission device.

[0016] Preferably, the two sets of the reel drive mechanisms share a single geared motor. One side of the geared motor's output shaft is connected to one set of reels via a coupling, and the other side of the geared motor's output shaft is connected to the other set of reels via a drive shaft.

[0017] Furthermore, the reel drive mechanism uses servo motors, and each set of servo motors is connected to the reel via a coupling. The two sets of servo motors are controlled to start and stop simultaneously.

[0018] Furthermore, the reel, reel drive mechanism, and rope-pulling mechanism are fixed under the floor of the container or on the ceiling inside the container.

[0019] This invention solves the problem of deformation and damage to the side door panels caused by asynchronous operation of the winches on both sides and different pulling and releasing speeds of the wire ropes on both sides when the side door panels are lowered and closed, thus avoiding economic losses. This invention ensures that the pulling and releasing speeds of the wire ropes on both sides are consistent during the opening and closing of the side door panels, resolving the problem of deformation and damage to the pulled side door panels. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is an embodiment of the present invention in which the rope-pulling mechanism, the reel, and the reel drive mechanism are concealed under the chassis. Attached image description:

[0023] Figure 1 and Figure 2 In the middle, 1-side door panel; 2-rope pulling mechanism; 3-roller; 4-drive mechanism; 5-fixed pulley block.

[0024] 21-Lead screw, 22-Bearing housing C, 23-Lead screw nut, 24-Guide shaft, 25-Guide block, 26-Connecting plate, 27-Rope limiting plate, 28-Limiting hole;

[0025] 31-Bearing housing A, 32-Sprocket A, 33-Sprocket B, 34-Chain roller;

[0026] 51-Fixed pulley A, 52-Fixed pulley B, 53-Fixed pulley C. Detailed Implementation

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the embodiments will be briefly described below. Obviously, the accompanying drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] The terms "fixed," "fixed setting," and "fixed connection" are relative to connection methods such as "moving" and "sliding connection." There are many ways to fix them, such as the lead screw 21 being fixed to the base plate by bearing seats C at both ends; the two ends of the reel 3 being fixed by bearing seats A; the guide block 25 and the lead screw nut 23 being fixed by the connecting plate 26, which can be fixed by bolts or by welding; the fixed connection between the connecting plate 26 and the rope limiting plate 27 can be fixed by welding or by integral molding. Unless otherwise specified, these terms can be interpreted broadly.

[0029] A modular cabin side door panel opening and closing mechanism includes two sets of symmetrically arranged pull ropes for pulling the side door panel up and down, a fixed pulley group 5 for changing the direction of the pull ropes, a rope-pulling mechanism 2, a roller 3, and a roller drive mechanism 4.

[0030] One end of each of the two sets of pull ropes is connected to the two sides of the side door panel. The other end of each set of pull ropes passes through the limiting hole 28 of the corresponding rope-pulling mechanism 2 and is fixed on the roller 3. The roller drive mechanism drives the roller 3 to rotate, and the rope-pulling mechanism 2 causes the pull ropes to be wound sequentially on the roller. The roller 3 starts and stops at the same time.

[0031] The fixed pulley block 5 changes the direction of the pull rope so that the pull rope adapts to the installation position of the rope pulling mechanism 2 and the roller 3. At least one fixed pulley in the fixed pulley block 5 is installed above the side door panel.

[0032] The rope-pulling mechanism 2 causes the pull ropes to be wound sequentially on the spool. As long as the pull ropes are wound sequentially on the spool and there is no overlap in the winding of the pull ropes, the specific structure is not limited here.

[0033] In one embodiment, the structure of the rope-pulling mechanism is as follows: Figure 2 As shown, the rope-pulling mechanism 2 includes a base plate, a lead screw 21 fixed to the base plate at both ends by bearing seats C, a guide shaft 24 installed parallel to the lead screw, and a rope limiting plate 27.

[0034] A screw nut 23 is threaded through the screw 21, and the screw nut 23 is slidably connected to the screw. The pitch of the screw 21 is greater than or equal to the diameter of the rope.

[0035] A guide block 25 is mounted on the guide shaft 24. The guide block 25 is slidably connected to the guide shaft 24 and slides along the guide shaft 24.

[0036] The guide block 25 and the lead screw nut 23 are fixed together by a connecting plate 26. The connecting plate 26 is fixedly connected to the rope limiting plate 27, and the rope limiting plate 27 has a limiting hole 28. The connecting plate 26 and the rope limiting plate 27 can be two plates connected and fixed together, or they can be formed by bending a single plate.

[0037] The lead screw 21 can be either a trapezoidal lead screw or a ball screw. Regardless of the type of lead screw used, the lead screw nut 23 and the lead screw 21 are in a sliding connection. Figure 2 In the embodiment shown, the lead screw 21 is a trapezoidal lead screw.

[0038] The spool 3 and the lead screw 21 on the rope pulling mechanism 2 are arranged parallel to each other and are not zero apart. The spool 3 and the lead screw 21 are connected by a synchronous transmission device.

[0039] In one embodiment, the synchronous drive device employs a sprocket drive. For example... Figure 1 As shown, the sprocket drive device has a sprocket A mounted on one end of the reel 3 and a sprocket B mounted on the lead screw 21. Sprocket A and sprocket B are connected by chain rollers, and their radial directions are in the same plane. Through the meshing of the chain rollers and sprocket teeth, when sprocket A rotates, it drives sprocket B to rotate simultaneously via the chain rollers. Under the action of sprocket B, the lead screw 21 also begins to rotate.

[0040] In one embodiment, the synchronous drive device employs a synchronous belt (toothed belt) drive. Figure 1 Similar to the sprocket in the original design, a pulley A is mounted on one end of the reel 3, and a pulley B is mounted on the lead screw 21. Pulleys A and B are fitted together and connected by teeth. Through the meshing of the teeth with the pulley teeth, when pulley A rotates, it drives pulley B to rotate simultaneously. Under the action of pulley B, the lead screw 21 also begins to rotate. The toothed belt drive occupies a certain width.

[0041] In one embodiment, the synchronous transmission device employs a gear transmission device. Figure 1 Similar to the sprocket in the middle, one end of the spool 3 is equipped with gear A, and gear B is equipped on the lead screw 21. Gear A and gear B are connected by direct meshing between the gear teeth. Thus, the guide shaft 24, which is parallel to the lead screw 21, can only be set on the outside of the lead screw 21. Since the diameter of gear B is larger than that of sprocket B, the width of the rope pulling mechanism 2 becomes wider and the volume becomes larger.

[0042] The pull rope is made of steel wire rope.

[0043] The reel 3 starts and stops simultaneously.

[0044] In one embodiment, the reel drive mechanism 4 uses a servo motor. Each set of servo motors is connected to the reel 3 via a coupling. The two sets of servo motors are controlled to start and stop simultaneously, so that the reel 3 can start and stop simultaneously.

[0045] In the above embodiments, the two sets of reel drive mechanisms 4 can also share a single geared motor to simultaneously drive the two sets of reels 3, enabling the reels 3 to start and stop simultaneously. Specifically, one side of the geared motor's output shaft is connected to one set of reels 3 via a coupling, and the other side of the geared motor's output shaft is connected to the other set of reels 3 via a transmission shaft.

[0046] The two ends of the scroll 3 are fixed by bearing seats A.

[0047] The installation positions of the scroll 3, scroll drive mechanism 4, and rope-pulling mechanism 2 can be flexibly set according to actual conditions. In one embodiment, such as... Figure 1 As shown, the above three components are concealed and fixed under the base of the container, without affecting the placement of various equipment on the base and the operation of personnel. In one embodiment, the above three components can also be installed on the base of the container, as long as it does not affect the various functions inside the container. In another embodiment, the above three components can also be installed on the ceiling inside the container.

[0048] Furthermore, each set of pull ropes is connected to the side door panel via a hanging ring.

[0049] The following explanation uses the example of the rope-pulling mechanism 2, the reel 3, and the reel drive mechanism 4 being concealed under the chassis.

[0050] like Figure 1 As shown, in order to adapt the wire rope to the installation position of the rope-pulling mechanism 2 and the reel 3, the fixed pulley block 5 is equipped with three fixed pulleys: fixed pulley A, fixed pulley B, and fixed pulley C. Fixed pulley A is installed at the upper position on the adjacent inner side of the side door panel of the container to pull the side door panel upward. Fixed pulleys C and B are installed below the chassis. Among them, fixed pulley C is installed at the vertical lower position of fixed pulley A, so that the wire rope changes from vertical to longitudinal. Fixed pulley B provides lateral limit for the wire rope. Under the action of the limit hole 28 of the rope-pulling mechanism 2, it moves laterally.

[0051] When the side door panel is about to close, the geared motor is activated, which drives the coupling to rotate, thereby driving the roller 3 and the drive shaft to rotate. The steel wire rope fixed on the roller 3 begins to wind around the roller 3. At the same time, since the roller 3 and the lead screw 21 of the rope pulling mechanism 2 are connected by a synchronous transmission device, the roller 3 drives the lead screw 21 to rotate synchronously through the synchronous transmission device, ensuring that the lead screw 21 rotates synchronously for every one rotation of the roller 3.

[0052] The thread on the lead screw 21 drives the lead screw nut 23 to move along the lead screw 21. Since the lead screw nut 23 and the guide block 25 are fixed by the same connecting plate 26, which also fixes the connecting rope limiting plate 27, the lead screw nut 23 drives the guide block 25 to move together. With the cooperation of the guide shaft 24, the guide block 25 can only move along the guide shaft 24, thus ensuring that the rope limiting plate 27 moves smoothly along the guide shaft 24. The movement of the rope limiting plate 27 drives a piece of wire rope passing through the rope limiting plate 27 to move along the guide shaft 24. Since the pitch on the lead screw 21 is greater than or equal to the diameter of the wire rope, when the reel 3 rotates one revolution, the lead screw nut 23 moves along the lead screw 21 by one pitch, that is, it moves the wire rope a distance greater than or equal to the diameter of the wire rope, thus ensuring that the wire rope does not overlap or become tangled.

[0053] Due to the action of the drive shaft, the spool 3 and the rope pulling mechanism 2, which are symmetrically arranged on the other end of the drive shaft, move synchronously. This ensures that the steel wire ropes on the other side of the side door panel will not overlap or get tangled, and thus ensures that the steel wire ropes on both sides of the side door panel can be pulled up at the same distance, thereby ensuring that the side door panel will not be deformed or damaged.

[0054] When the side door panel is closed in place under the action of the steel wire ropes at both ends, the reduction motor stops working, thus completing the side door panel closing action.

[0055] The thread on the lead screw 21 drives the lead screw nut 23 to move along the lead screw 21. Since the lead screw nut 23 and the guide block 25 are fixed by the same connecting plate 26, which also fixes the connecting rope limiting plate 27, the lead screw nut 23 drives the guide block 25 to move together. With the cooperation of the guide shaft 24, the guide block 25 can only move along the guide shaft 24, thus ensuring that the rope limiting plate 27 moves smoothly along the guide shaft 24. The movement of the rope limiting plate 27 drives a piece of wire rope passing through the rope limiting plate 27 to move along the guide shaft 24. Since the pitch on the lead screw 21 is greater than or equal to the diameter of the wire rope, when the reel 3 rotates one revolution, the lead screw nut 23 moves along the lead screw 21 by one pitch, that is, it moves the wire rope a distance greater than or equal to the diameter of the wire rope, thus ensuring that the wire rope does not overlap or become tangled.

[0056] Due to the action of the drive shaft, the spool 3 and the rope pulling mechanism 2, which are symmetrically arranged on the other end of the drive shaft, move synchronously. This ensures that the steel wire ropes on the other side of the side door panel will not overlap or get tangled, and thus ensures that the steel wire ropes on both sides of the side door panel can be pulled up at the same distance, thereby ensuring that the side door panel will not be deformed or damaged.

[0057] When the side door panel is closed in place under the action of the steel wire ropes at both ends, the reduction motor stops working, thus completing the side door panel closing action.

Claims

1. A side door opening and closing mechanism for a modular shelter, characterized in that: It includes two sets of symmetrically arranged pull ropes for pulling the side door panels up and down, a fixed pulley group for changing and limiting the direction of the pull ropes, a rope-pulling mechanism, a reel, and a reel drive mechanism; One end of each of the two sets of pull ropes is connected to both sides of the side door panel. The other end of each set of pull ropes passes through the limiting hole of the corresponding rope-pulling mechanism and is fixed on the roller. The roller drive mechanism drives the roller to rotate, and the rope-pulling mechanism causes the pull ropes to be wound sequentially on the roller. The two sets of rollers start and stop simultaneously. The fixed pulley block changes the direction of the pull rope to adapt the pull rope to the installation position of the rope pulling mechanism and the reel. At least one fixed pulley in the fixed pulley block is installed above the side door panel.

2. The side door opening and closing mechanism of a modular shelter according to claim 1, characterized in that: The rope-pulling mechanism includes a base plate, a lead screw fixed on the base plate, a guide shaft installed parallel to the lead screw, and a rope limiting plate. The two ends of the lead screw are fixed by bearing seats C. A lead screw nut is threaded on the lead screw and is slidably connected to the lead screw. The pitch of the lead screw is greater than or equal to the diameter of the pull rope. A guide block is mounted on the guide shaft, and the guide block is slidably connected to the guide shaft. The guide block and the lead screw nut are fixed together by a connecting plate, which is fixedly connected to the rope limiting plate, and the rope limiting plate has a limiting hole.

3. The side door opening and closing mechanism of a modular shelter according to claim 2, characterized in that: The reel and the lead screw on the rope-pulling mechanism are arranged parallel to each other and are not zero apart. The reel and the lead screw are connected by a synchronous transmission device.

4. The side door opening and closing mechanism of a modular shelter according to claim 1, 2, or 3, characterized in that: The reel drive mechanism uses servo motors, and each set of servo motors is connected to the reel via a coupling. Both sets of servo motors start and stop simultaneously.

5. A modular cabin side door opening and closing mechanism according to claim 1, 2, or 3, characterized in that: The two sets of the reel drive mechanisms share a geared motor. One side of the geared motor's output shaft is connected to one set of reels via a coupling, and the other side of the geared motor's output shaft is connected to the other set of reels via a transmission shaft.

6. A modular shelter side door opening and closing mechanism according to claim 1, 4, or 5, characterized in that: The reel, reel drive mechanism, and rope-pulling mechanism are fixed under the bottom plate of the container.

7. The side door opening and closing mechanism of a modular shelter according to claim 1, 4, or 5, characterized in that: The reel, reel drive mechanism, and rope-pulling mechanism are installed on the ceiling inside the cabin.

8. A modular cabin side door opening and closing mechanism according to claim 1, 4, or 5, characterized in that: The synchronous transmission device adopts a sprocket transmission device, a synchronous belt transmission device, or a gear transmission device.

9. The side door opening and closing mechanism of a modular shelter according to claim 2, characterized in that: The lead screw is either a trapezoidal lead screw or a ball screw.

Images