Up-down folding door
By designing an inverted U-shaped door frame structure and a drive mechanism, the safety and stability issues of existing folding doors have been resolved, achieving low-noise, long-life, and low-cost operation of folding doors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-07
AI Technical Summary
Existing folding doors are not very secure, have complex folding structures, are noisy, have poor operational stability, require frequent maintenance, and have high operating costs.
It adopts an inverted U-shaped door frame structure, combined with the hinge design of the upper and lower door panels. The sliding part is driven to move up and down by a drive mechanism. The movement is guided by the guide part through the cooperation of the carriage and the rolling wheel, and equipped with a torsion spring mechanism and drive motor to achieve smooth folding or closing.
It features a reasonable structure, stable operation, low noise, safety and reliability, long service life, low operating costs, and no need for frequent maintenance.
Smart Images
Figure CN224093264U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to door industry technical field especially relates to a up and down folding door. BACKGROUND
[0002] The folding door is mainly suitable for the partition purpose of workshop, shopping mall, office building, exhibition hall and the like, can effectively play the roles of temperature insulation, dust prevention, noise reduction and sound insulation, shielding and the like, has the characteristics of small land occupation, convenient opening and closing and the like.
[0003] But the folding door on the market has the problems of low safety, complex folding structure, large working noise during folding, poor running stability, frequent maintenance, high operation cost and the like. CONTENT OF THE UTILITY MODEL
[0004] The utility model provides a up and down folding door, this up and down folding door structure is reasonable, and the running is stable, and the working noise is low, and safe and reliable, and long service life, and low operation cost, and do not need to maintain frequently.
[0005] The utility model aims at realizing through the following technical scheme:
[0006] A up and down folding door, including the door frame of inverted U shape, the door frame includes upper door frame and two side door frames, the bottom of the upper door frame is hinged with the upper door plate, the bottom of the upper door plate is hinged with the lower door plate, the vertical slide is fixedly connected on two side door frames respectively, the sliding part is slidably connected in two slides respectively, the lower door plate is fixedly connected with the rolling wheel of sliding connection with the slide on both sides of the lower part, the guide part of sliding connection with the sliding part is fixedly connected on the lower door plate below the rolling wheel, the guide part of sliding connection with the sliding part is arranged on the side of the lower door plate, the driving mechanism for driving the sliding part to move up and down is arranged on the door frame, the torsion spring mechanism for lifting the lower door plate is arranged on the upper door frame, when the sliding part moves up, the bottom of the lower door plate moves up and drives the top of the upper door plate and the bottom of the lower door plate to extend forward and form the folding state, when the sliding part moves down, the bottom of the lower door plate moves down and drives the top of the upper door plate and the bottom of the lower door plate to retract backward and form the closing state of the same plane.
[0007] The up and down folding door, wherein, the driving mechanism includes drive shaft, driving wheel, transmission chain, driven wheel and drive motor, the drive shaft is horizontally arranged below the upper door frame, the both ends of the drive shaft are rotatably connected with the corresponding side door frame respectively, the both sides of the drive shaft are fixedly connected with the driving wheel respectively, the bottom of two side door frames is rotatably connected with the corresponding driven wheel of the corresponding driving wheel respectively, the driving wheel and the corresponding driven wheel are connected through the transmission chain, the both ends of the transmission chain are connected with the upper and lower ends of the sliding part respectively, the drive motor is fixedly connected on the upper door frame, the drive motor is drivingly connected with the drive shaft through the gear set.
[0008] The up-and-down folding door, wherein the sliding frame is made of aluminum profile, the sliding frame is respectively provided with a first sliding groove and a second sliding groove along the length direction, the included angle between the center line of the first sliding groove and the center line of the second sliding groove is not greater than 60°, a rolling wheel is embedded in the first sliding groove, the wheel shaft of the rolling wheel is parallel to the lower door plate and is perpendicularly fixedly connected with a mounting plate, the mounting plate is fixedly connected with the lower side of the lower door plate, and a sliding part is embedded in the second sliding groove.
[0009] The up-and-down folding door, wherein the guide plate is provided with a wire hanging ring.
[0010] The up-and-down folding door, wherein the sliding part comprises an upper connecting block, a connecting rod, a lower connecting block, a rolling wheel set and a guide wheel, the connecting rod is fixedly connected with the upper connecting block and the lower connecting block at two ends respectively, the rolling wheel set is embedded in the second sliding groove, the rolling wheel set comprises an outer rolling wheel and an inner rolling wheel, the upper connecting block and the lower connecting block are fixedly connected with the outer rolling wheel respectively, the wheel shafts of the two outer rolling wheels are parallel to each other, the inner rolling wheel is fixedly connected on the connecting rod, the inner rolling wheel is located between the two outer rolling wheels and the wheel shaft of the inner rolling wheel is perpendicular to the wheel shaft of the outer rolling wheel, and the lower connecting block is fixedly connected with the guide wheel, and the wheel shaft of the guide wheel is parallel to the wheel shaft of the rolling wheel.
[0011] The up-and-down folding door, wherein the guide part comprises a connecting plate and a guide plate perpendicular to the connecting plate, the connecting plate is fixedly connected at the lower side of the rear part of the lower door plate, the guide plate is provided with a guide groove extending along the length direction, the guide groove is in a smooth transition V shape and the bending part is outwardly raised, the guide plate is perpendicular to the wheel shaft of the guide wheel, and the guide wheel is embedded in the guide groove.
[0012] The up-and-down folding door, wherein the groove opening of the first sliding groove is provided with a sealing groove along the length direction at two sides, and a sealing strip is embedded in the sealing groove.
[0013] The up-and-down folding door, wherein the torsion spring mechanism comprises a torsion rod, a torsion spring, a wire pulling disc and a wire, the torsion spring is sleeved on the torsion rod and is horizontally arranged below the upper door frame, the two ends of the torsion rod are rotationally connected with the corresponding side door frame respectively, a stop pin is fixedly arranged on the torsion rod, a stop block is fixedly arranged on the upper door frame, one end of the torsion spring is clamped on the stop pin, the other end of the torsion spring is clamped on the stop block, the wire pulling discs are fixedly connected on the two sides of the torsion rod, one end of the wire is wound on the wire pulling disc, and the other end of the wire is fixedly connected on the wire hanging ring.
[0014] Therefore, the up-and-down folding door has the beneficial technical effects that:
[0015] The utility model discloses a folding door structure, including frame, upper door board and lower door board, the lower door board rear side lower part sets up guide portion, side door frame fixed link vertical slide, the lower door board lower part fixed link and slide of slide frame connection rolling wheel, the slide frame still slide connection and the guide portion cooperation sliding portion in, drive mechanism drive sliding portion moves up and down to make folding door fold or close. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the structure schematic diagram of the utility model;
[0017] Figure 2 It is the structure schematic diagram of the utility model another view of removing upper door frame guard board;
[0018] Figure 3 It is Figure 2 The enlarged view of A of
[0019] Figure 4 It is the plan view of slide frame of the utility model;
[0020] Figure 5 It is the structure schematic diagram of sliding portion of the utility model;
[0021] Figure 6 It is the plan view of slide frame and sliding portion cooperation of the utility model.
[0022] Fig. illustration, 1, door frame;11, upper door frame;12, side door frame;2, upper door board;3, lower door board;4, slide frame;41, first slide groove;411, sealing groove;42, second slide groove;5, rolling wheel;51, mounting plate;6, sliding portion;61, upper connecting block;62, connecting rod;63, lower connecting block;64, roller group;641, outer roller;642, inner roller;65, guide wheel;7, guide portion;71, connecting plate;72, guide plate;721, guide groove;722, hanging line ring;8, drive mechanism;81, drive shaft;82, driving wheel;83, transmission chain;84, driven wheel;85, drive motor;9, torsion spring mechanism;91, torsion bar;92, torsion spring;93, pull line disc. DETAILED DESCRIPTION
[0023] The following combines the Figures 1-6 The utility model makes further detailed explanation.
[0024] Such as Figure 1 , 2As shown in the figure, a kind of up and down folding door, including the door frame 1 of inverted U shape, the door frame 1 includes upper door frame 11 and two side door frames 12, the bottom of upper door frame 11 is hinged upper door plate 2, the bottom of upper door plate 2 is hinged lower door plate 3, two side door frames 12 are respectively fixed with vertical sliding bracket 4, two sliding bracket 4 are respectively slidably connected with sliding part 6, the lower part of lower door plate 3 is respectively fixed with the rolling wheel 5 slidably connected with sliding bracket 4, the lower door plate 3 below rolling wheel 5 is fixed with the guide part 7 slidably connected with sliding part 6, the driving mechanism 8 for driving sliding part 6 to move up and down is provided on door frame 1;Torsional spring mechanism 9 for lifting lower door plate 3 is provided on upper door frame 11;When sliding part 6 moves upward, the bottom of lower door plate 3 moves upward and drives the top of upper door plate 2 and the bottom of lower door plate 3 to extend forward and form folding state, when sliding part 6 moves downward, the bottom of lower door plate 3 moves downward and drives the top of upper door plate 2 and the bottom of lower door plate 3 to retract backward, finally upper door plate 2 and lower door plate 3 are located in the same plane to form closed state.
[0025] As shown in the figure, Figure 2 , 3 The driving mechanism 8 of the embodiment includes driving shaft 81, driving wheel 82, transmission chain 83, driven wheel 84 and driving motor 85, driving shaft 81 is horizontally arranged below upper door frame 11, both ends of driving shaft 81 are respectively rotatably connected with corresponding side door frame 12, both sides of driving shaft 81 are respectively fixed with driving wheel 82, the bottom of two side door frames 12 is respectively rotatably connected with corresponding driven wheel 84 corresponding to corresponding driving wheel 82, driving wheel 82 and corresponding driven wheel 84 are connected through transmission chain 83, both ends of transmission chain 83 are respectively connected with the upper and lower ends of sliding part 6, driving motor 85 is fixed on upper door frame 11, driving motor 85 is drivingly connected with driving shaft 81 through gear set.
[0026] As shown in the figure, Figures 3-6 The sliding bracket 4 of the embodiment is aluminum profile, first sliding groove 41 and second sliding groove 42 are respectively provided in the length direction of sliding bracket 4, rolling wheel 5 is embedded in first sliding groove 41, the wheel shaft of rolling wheel 5 is parallel to the plane of door frame 1, the wheel shaft of rolling wheel 5 is vertically fixedly connected with mounting plate 51, mounting plate 51 is fixedly connected with the lower side surface of lower door plate 3, sliding part 6 is embedded in second sliding groove 42.
[0027] As shown in the figure, Figure 5 , 6As shown, the sliding part 6 of the embodiment comprises an upper connecting block 61, a connecting rod 62, a lower connecting block 63, a roller set 64 and a guide wheel 65, the upper and lower ends of the connecting rod 62 are fixedly connected with the upper connecting block 61 and the lower connecting block 63 respectively, the roller set 64 is embedded in the second sliding groove 42, the roller set 64 comprises outer rollers 641 and inner rollers 642, the upper connecting block 61 and the lower connecting block 63 are fixedly connected with the outer rollers 641 respectively, the wheel shafts of the two outer rollers 641 are parallel to each other, the inner rollers 642 are fixedly connected on the connecting rod 62, the inner rollers 642 are located between the two outer rollers 641 and the wheel shafts of the inner rollers 642 are perpendicular to the wheel shafts of the outer rollers 641, the lower connecting block 63 is fixedly connected with the guide wheel 65, and the wheel shaft of the guide wheel 65 is parallel to the wheel shaft of the rolling wheel 5.
[0028] As shown in the drawings, Figure 5 The inner rollers 642 of the embodiment are provided in two, and the wheel shafts of the two inner rollers 642 are parallel to each other.
[0029] As shown in the drawings, Figure 6 The outer rollers 641 in the roller set 64 are in rolling connection with the two opposite inner walls of the second sliding groove 42, and the inner rollers 642 are in rolling connection with the other two opposite inner walls of the second sliding groove 42. Through the structural arrangement, the carrying capacity of the sliding part 6 can be improved, and the stability of the folding door when folding or closing can be improved.
[0030] As shown in the drawings, Figure 2 , 3 The guide part 7 comprises a connecting plate 71 and a guide plate 72 perpendicular to the connecting plate 71, the connecting plate 71 is fixedly connected to the lower side of the rear part of the lower door plate 3, the guide plate 72 is provided with a guide groove 721 extending along the length direction, the guide groove 721 is in the shape of a smoothly transitioned V and the bending part thereof protrudes outward, the guide plate 72 is perpendicular to the wheel shaft of the guide wheel 65, and the guide wheel 65 is embedded in the guide groove 721. Through the cooperation of the guide wheel 65 and the guide groove 721, the up-and-down movement of the sliding part 6 drives the guide wheel 65 to move up and down while also sliding in the guide groove 721, so that the folding or closing of the folding door is smooth and interference is avoided.
[0031] As shown in the drawings, Figure 4 The sealing grooves 411 are embedded with sealing strips, and the outer side of the rolling wheel 5 is provided with a sealing strip, so that dust can be prevented from entering the rolling wheel 5, the service life of the rolling wheel 5 can be improved, the friction can be reduced, and the maintenance cost can be reduced.
[0032] As shown in the drawings, Figure 3 The guide plate 72 is provided with a wire hanging ring 722.
[0033] As shown in the drawings, Figure 2 , 3As shown, the torsion spring mechanism 9 comprises a torsion bar 91, a torsion spring 92, a pull wire disc 93 and a pull wire (not shown in the figure), the torsion spring 92 is sleeved on the torsion bar 91 and is horizontally arranged below the upper door frame 11, the torsion bar 91 is rotatably connected with the corresponding side door frame 12 at both ends, the torsion bar 91 is fixedly provided with a stop pin (not shown in the figure), the upper door frame 11 is fixedly provided with a stop block (not shown in the figure), one end of the torsion spring 92 is clamped on the stop pin, the other end of the torsion spring 92 is clamped on the stop block, and the pull wire disc 93 of the same shaft is fixedly connected on both sides of the torsion bar 91, one end of the pull wire is wound on the pull wire disc 93, and the other end of the pull wire is fixedly connected on the hanging wire ring 722.
[0034] Rotating the pull wire disc 93, the torsion force of the torsion spring 92 is applied to the torsion bar 91, and the pull wire is fixedly connected on the hanging wire ring 722, so that the torsion force is always applied to the lower door plate 3 through the pull wire. Through the arrangement of the torsion spring mechanism 9, the power required for the driving motor 85 to drive the folding door to fold is reduced, the equipment procurement cost is reduced, and in the case of power failure, the folding door can be easily folded manually, the application scene of the folding door is enriched, and the safe, stable and reliable work of the folding door is ensured.
[0035] The specific working process of the utility model is as follows: combined with Figure 2 、 3 As shown, the initial state of the folding door is closed, at this time, the sliding part 6 is located below the sliding frame 4, and the upper door plate 2 and the lower door plate 3 are located on the same plane. When it is needed to open the folding door, the driving motor 85 is started, the torsion force is transmitted to the driving shaft 81 through the gear set, and the driving motor 85 drives the driving wheel 82 to rotate, the driving wheel 82 drives the sliding part 6 to move upward through the chain transmission of the transmission chain 83 and the driven wheel 84, the guide wheel 65 on the sliding part 6 drives the guide part 7 to move upward, and the guide wheel 65 also rolls in the guide groove 721, at this time, the lower end of the lower door plate 3 moves upward, the bottom of the upper door plate 2 and the top of the lower door plate 3 are synchronously stretched forward, and the upper door plate 2 and the lower door plate 3 are gradually folded, when the folding door reaches the folding height, the driving motor 85 stops working.
[0036] When it is needed to close the folding door in the folded state, the driving motor 85 is reversed, the transmission chain 83 drives the sliding part 6 to move downward, and the working process is reversed to the above process, that is, the closing of the folding door can be completed.
[0037] The embodiments of the specific embodiment are the preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: any equivalent changes made according to the structure, shape and principle of the utility model should be covered within the protection scope of the utility model.
Claims
1. A vertically folding door, comprising an inverted U-shaped door frame, the door frame including an upper door frame and two side door frames, an upper door panel hinged to the bottom of the upper door frame, and a lower door panel hinged to the bottom of the upper door panel, characterized in that, Vertical carriages are fixedly connected to the two side door frames, and sliding parts are slidably connected inside the two carriages. Rollers that are slidably connected to the carriages are fixedly connected to the lower sides of the lower door panel. Guide parts that are slidably connected to the sliding parts are fixedly connected to the lower door panel below the rollers. A drive mechanism for driving the sliding parts to move up and down is provided on the door frame. A torsion spring mechanism for lifting the lower door panel is provided on the upper door frame. When the sliding part moves upward, the bottom of the lower door panel moves upward and drives the top of the upper door panel and the bottom of the lower door panel to extend forward and form a folded state. When the sliding part moves downward, the bottom of the lower door panel moves downward and drives the top of the upper door panel and the bottom of the lower door panel to retract backward and form a closed state on the same plane.
2. The vertical folding door as described in claim 1, characterized in that, The drive mechanism includes a drive shaft, a drive wheel, a transmission chain, a driven wheel, and a drive motor. The drive shaft is horizontally positioned below the upper door frame. Both ends of the drive shaft are rotatably connected to the corresponding side door frames. Drive wheels are fixedly connected to both sides of the drive shaft. The bottoms of the two side door frames are rotatably connected to the driven wheels corresponding to the drive wheels. The drive wheels and the corresponding driven wheels are connected by a transmission chain. The beginning and end of the transmission chain are connected to the upper and lower ends of the sliding part, respectively. The drive motor is fixedly connected to the upper door frame and is connected to the drive shaft via a gear set.
3. The vertical folding door as described in claim 1, characterized in that, The slide is made of aluminum profile. The slide is provided with a first slide groove and a second slide groove along its length. A rolling wheel is embedded in the first slide groove. The axle of the rolling wheel is parallel to the plane of the door frame. The axle of the rolling wheel is vertically fixed to the mounting plate. The mounting plate is fixed to the lower side of the lower door panel. A sliding part is embedded in the second slide groove.
4. The vertical folding door as described in claim 3, characterized in that, The first chute has sealing grooves on both sides of its opening along its length, and a sealing strip is embedded in the sealing groove.
5. The vertically folding door as described in claim 3, characterized in that, The sliding part includes an upper connecting block, a connecting rod, a lower connecting block, a roller assembly, and a guide wheel. The two ends of the connecting rod are respectively fixed to the upper connecting block and the lower connecting block. The roller assembly is embedded in the second sliding groove. The roller assembly includes an outer roller and an inner roller. The upper connecting block and the lower connecting block are respectively fixed to the outer roller. The axles of the two outer rollers are parallel to each other. The inner roller is fixed to the connecting rod. The inner roller is located between the two outer rollers and the axle of the inner roller is perpendicular to the axle of the outer roller. The lower connecting block is fixed to the guide wheel. The axle of the guide wheel is parallel to the axle of the roller.
6. The vertically folding door as described in claim 5, characterized in that, The guide portion includes a connecting plate and a guide plate perpendicular to it. The connecting plate is fixed to the lower rear side of the lower door panel. The guide plate is provided with a guide groove extending along the length direction. The guide groove is a smoothly transitioned V-shape with the bend bulging outward. The guide plate is perpendicular to the wheel axle of the guide wheel, and the guide wheel is embedded in the guide groove.
7. The vertical folding door as described in claim 6, characterized in that, The guide plate is equipped with a hanging loop.
8. The vertical folding door as described in claim 7, characterized in that, The torsion spring mechanism includes a torsion bar, a torsion spring, a pull wire reel, and a pull wire. The torsion spring is sleeved on the torsion bar and horizontally positioned below the upper door frame. Both ends of the torsion bar are rotatably connected to the corresponding side door frames. A stop pin is fixed on the torsion bar, and a stop block is fixed on the upper door frame. One end of the torsion spring is engaged with the stop pin, and the other end of the torsion spring is engaged with the stop block. Coaxial pull wire reels are fixed to both sides of the torsion bar. One end of the pull wire is wound around the pull wire reel, and the other end of the pull wire is fixed to a hanging ring.