Single-sided double-track rapid lifting door

Abstract

This invention provides a single-sided double-track high-speed lifting door, comprising a door panel and a door frame. The door panel has double fixed shafts at both ends. Each side of the door frame is equipped with double tracks and double drive chains. Each drive chain has a fork mechanism that drives the double fixed shafts of the door panel, thereby driving the door panel to lift and fall along the defined direction of the double tracks. This high-speed lifting door, by employing a single-sided double-track and double-drive chain operating mechanism, ensures that all door panels are horizontally aligned after being lifted into position, achieving the triple benefits of low operating noise, the ability to use aesthetically pleasing wide door panels, and rapid lifting.

Description

Technical Field

[0001] This invention relates to the field of building equipment technology, specifically to a single-sided double-track fast lifting door installed at a building entrance. Background Technology

[0002] Depending on the requirements, building entrances and exits typically need to be equipped with high-speed doors that block airflow or the passage of people and vehicles. Due to space limitations at the entrances and exits, these are usually high-speed lifting doors where the door panel rises upwards and is stored at the top of the entrance / exit. In many cases, due to the need for sufficient height for passage and space for overhead electromechanical pipeline installation, there is limited space for both the height and the front / back space to store the door panel; this situation is very common in engineering practice. In such cases, the available products are rigid high-speed roller shutters and top-mounted automatic doors, but both types of doors have their own drawbacks in application. Rigid high-speed roller shutters, due to the hinged joints between door panels and the metal construction of the panels and connectors, experience significant noise during operation as the panels rapidly roll into the upper track, sometimes startling passing drivers. Because the panels must roll into the upper track, each panel cannot be too wide, resulting in an unattractive appearance. Furthermore, some rolled-up panels are placed horizontally, which can cause them to warp and bend over time, resulting in an uneven closing position. Top-mounted automatic doors, with their fixed track axis at the end of the door panel, cannot lift quickly. If they were to lift rapidly, the panels would wobble and collide after reaching the top. The use of a synchronous belt for lifting also limits their lifting speed.

[0003] Therefore, those skilled in the art have provided a single-sided double-track high-speed lifting door to solve the problems mentioned in the background art. Summary of the Invention

[0004] This invention provides a single-sided double-track high-speed lifting door, which achieves the triple benefits of low operating noise, the use of aesthetically pleasing wide door panels, and rapid lifting. This high-speed lifting door, through the operation mechanism of single-sided double track and double power chain, ensures that each door panel is lifted into place and arranged horizontally according to certain rules.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A single-sided double-track high-speed lifting door includes a door panel and a door frame.

[0007] The door panel is provided with double fixed shafts at both ends;

[0008] Each side of the door frame is equipped with double tracks and double power chains;

[0009] Each of the power chains is equipped with a shift fork mechanism, which drives the double fixed shafts of the door panel, thereby driving the door panel to rise and fall along the defined direction of the double tracks.

[0010] Furthermore, the dual tracks are a first track and a second track; the dual power chains are a first power chain and a second power chain.

[0011] The door panel has two fixed shafts at its two ends, namely an upper fixed shaft and a lower fixed shaft. The upper fixed shaft is provided with an upper track wheel, and the lower fixed shaft is provided with a connecting arm. The end of the connecting arm is provided with a lower track wheel. The upper track wheel cooperates with the first track, and the lower track wheel cooperates with the second track.

[0012] Furthermore, the fork mechanism includes an unlocking hook and a lifting platform, which works in conjunction with the fixed shaft of the door panel to achieve the lifting and lowering of the door panel.

[0013] The shift fork mechanism serves to transmit and interrupt power. When the door panel needs to be lifted, the shift fork mechanism lifting platform installed on the dual power chain simultaneously lifts the upper and lower fixed shafts of the door panel along the vertical section of the track, through the arc section of the track, to the horizontal section of the track. At the same time, the shift fork mechanism lifting platform disengages from the upper and lower fixed shafts of the door panel. When the door panel needs to be lowered, the shift fork mechanism unlocking hook unlocks the limiting mechanisms of the first and second tracks. The shift fork mechanism engages with the upper and lower fixed shafts of the door panel, causing the upper and lower fixed shafts of the door panel to drive the corresponding door panel down along the horizontal section of the track, through the arc section of the track, to the vertical section of the track.

[0014] Furthermore, each track includes a horizontal section, a circular arc section, and a vertical section, and both the first and second tracks are equipped with a fixed axis limiting mechanism.

[0015] Furthermore, the fixed shaft limiting mechanism is located at the junction of the horizontal section and the circular section of the track, and includes an unlocking surface, a limiting pin, a slider, a slide rail, and a spring. When the upper or lower fixed shaft enters the horizontal section of the track, the limiting mechanism restricts the upper or lower fixed shaft from moving in the opposite direction, preventing the fixed shaft from independently entering the circular section. When the upper or lower fixed shaft needs to enter the circular section of the track from the horizontal section, the limiting mechanism is unlocked by a fork mechanism. The fork structure engages with the upper or lower fixed shaft, driving the upper and lower fixed shafts of the door panel to sequentially enter the circular section and then the vertical section of the track. Specifically, the fork mechanism unlocks the limiting mechanism: the unlocking hook of the fork mechanism achieves the unlocking purpose by hitting the unlocking surface of the limiting mechanism. The specific shape of the unlocking surface is determined according to the actual situation.

[0016] Furthermore, a door panel ejection mechanism is provided at the horizontal section of the track, including a push arm, an upper linear slide rail, a lower linear slide rail, an upper ejection slider, a lower ejection slider, and a tension spring. The upper and lower ends of the push arm are in contact with the upper and lower fixed shafts of the door panel being approached, respectively. When the limiting mechanism is unlocked, the tension spring of the door panel ejection mechanism pushes the door panel to move towards the arc section of the track.

[0017] Each door panel is equipped with a spacer block and a sealing strip. The spacer blocks are located at both ends of the door panel, and the sealing strip is located at the bottom end of the door panel. During the independent lifting process of each door panel, the door panel spacer blocks not only prevent collisions between adjacent door panels during the lifting process, but also ensure that the door panels are arranged horizontally in a certain pattern after being lifted into place.

[0018] Furthermore, the track includes two track profiles and a fixed base plate. The track profiles are fixed on the fixed base plate, and the three together form the movement space of the track wheel. The end face of the track profile is T-shaped.

[0019] In addition, it also includes a power transmission system, wherein a motor, a main drive wheel, a first driven wheel, a second driven wheel, a third driven wheel, and corresponding first chains, second chains, and third chains are installed on one side of the door frame, and a fourth driven wheel, a fifth driven wheel, a sixth driven wheel, a seventh driven wheel, and corresponding fourth chains, fifth chains, and sixth chains are installed on the other side of the door frame. A drive shaft is installed between the third driven wheel and the fourth driven wheel to achieve synchronous movement on both sides.

[0020] Beneficial effects

[0021] This invention features a single-sided double track and double power chain, with fixed shafts at the top and bottom of the door panel. Combined with the fixed shaft connecting arm, double track, and double power chain, the door panels are lifted independently and then stacked on the top horizontal track, achieving a triple effect of low operating noise, the ability to use aesthetically pleasing wide door panels, and rapid lifting.

[0022] The door panel is equipped with two fixed shafts on both sides. The entire door panel is lifted and lowered by four fixed shafts, which prevents twisting and deformation, greatly improves stability, and has a good noise reduction effect.

[0023] The door panels are taller, making them more aesthetically pleasing. Moreover, once raised, each door panel is arranged vertically side by side, so it is not easy for them to deform even after a long time.

[0024] Because each door panel is lifted independently without interfering with the others, the lifting speed is greatly improved. Attached Figure Description

[0025] Figure 1 This is a front structural diagram of the fast-lifting door described in this invention (door panel lowered).

[0026] Figure 2 This is a side view of the quick-lifting door described in this invention (door panel lowered).

[0027] Figure 3 This is a three-dimensional structural diagram of the fast-lifting door described in this invention (door panel lowered).

[0028] Figure 4 for Figure 1 AA section view;

[0029] Figure 5 This is a front structural diagram of the quick-lifting door described in this invention (door panel raised).

[0030] Figure 6 This is a three-dimensional structural diagram of the fast-lifting door described in this invention (door panel rising in).

[0031] Figure 7 for Figure 5 BB cross-sectional view;

[0032] Figure 8 A front view of the structure for the track fork and the fixed shaft of the door panel;

[0033] Figure 9 This is a schematic diagram of the cross-sectional structure of the track;

[0034] Figure 10 A three-dimensional schematic diagram of the structure for the track fork and the fixed shaft of the door panel;

[0035] Figure 11 for Figure 10 A magnified view of a portion at point C;

[0036] Figure 12 A front view schematic diagram of the structural principle of the fixed shaft limiting mechanism acting on the fixed shaft;

[0037] Figure 13 A three-dimensional schematic diagram illustrating the structural principle of the fixed shaft limiting mechanism acting on the fixed shaft.

[0038] Figure 14 for Figure 12 A magnified view of a portion of point D.

[0039] in,

[0040] 100. Door panel; 101. Upper fixed shaft; 102. Lower fixed shaft; 103. Upper track wheel; 104. Connecting arm; 105. Lower track wheel; 106. Spacer block; 107. Sealing strip;

[0041] 200. Door frame; 201. First track; 202. Second track; 203. First drive chain; 204. Second drive chain; 205. Horizontal section of track; 206. Arc section of track; 207. Vertical section of track; 208. Track profile; 209. Fixed base plate;

[0042] 300. Shift fork mechanism; 301. Unlock hook; 302. Lifting platform;

[0043] 400. Power transmission system; 401. Motor; 402. Main drive wheel; 403. First driven wheel; 404. Second driven wheel; 405. Third driven wheel; 406. First chain; 407. Second chain; 408. Third chain; 409. Fourth driven wheel; 410. Fifth driven wheel; 411. Sixth driven wheel; 402. Seventh driven wheel; 413. Fourth chain; 414. Fifth chain; 415. Sixth chain; 416. Drive shaft;

[0044] 500. Fixed axis limiting mechanism; 501. Unlocking curved surface; 502. Limiting pin; 503. Slider; 504. Slide rail; 505. Spring;

[0045] 600. Door panel ejection mechanism; 601. Push arm; 602. Upper linear slide rail; 603. Lower linear slide rail; 604. Upper ejection slider; 605. Lower ejection slider; 606. Tension spring. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] Example:

[0048] like Figure 1-7 As shown, the single-sided double-track fast-lifting door of this embodiment includes a door panel 100 and a door frame 200. Two fixed shafts are respectively provided at both ends of the door panel 100, namely an upper fixed shaft 101 and a lower fixed shaft 102. Each side of the door frame 200 is provided with a double track and a double power chain, wherein the double track is a first track 201 and a second track 202, and the double power chain is a first power chain 203 and a second power chain 204. Each power chain is provided with a fork mechanism 300, which drives the double fixed shafts of the door panel to lift and fall along the defined direction of the double track.

[0049] Specifically, the operation of the door panel 100 also includes the power transmission system 400, the fixed shaft limiting mechanism 500, and the door panel ejection mechanism 600.

[0050] The power transmission system 400 includes a motor 401, a main drive wheel 402, a first driven wheel 403, a second driven wheel 404, a third driven wheel 405, and corresponding first chains 406, second chains 407, and third chains 408, all mounted on one side of the door frame. On the other side of the door frame, a fourth driven wheel 409, a fifth driven wheel 410, a sixth driven wheel 411, a seventh driven wheel 412, and corresponding fourth chains 413, fifth chains 414, and sixth chains 415 are mounted. A drive shaft 416 is installed between the third driven wheel 405 and the fourth driven wheel 409 to achieve synchronous movement on both sides.

[0051] The upper fixed shaft 101 is equipped with an upper track wheel 103, and the lower fixed shaft 102 is equipped with a connecting arm 104. The end of the connecting arm 104 is equipped with a lower track wheel 105. The upper track wheel 103 cooperates with the first track 201, and the lower track wheel 105 cooperates with the second track 202. The shape and position of the connecting arm 104 vary depending on the location of each door panel, and the specific fit is based on ensuring that the door panels do not interfere with each other after being lifted.

[0052] like Figure 8-11 As shown, the shift fork mechanism 300 includes an unlocking hook 301 and a lifting platform 302. The lifting platform 302 works in conjunction with the fixed shaft of the door panel to realize the lifting and lowering of the door panel.

[0053] The shift fork mechanism 300 here serves to transmit and interrupt power. When the door panel 100 needs to be lifted, the shift fork mechanism 300 lifting platform installed on the dual power chain simultaneously lifts the upper fixed shaft 101 and lower fixed shaft 102 of the door panel along the vertical section 207 of the track, through the arc section 206 of the track, to the horizontal section 205 of the track. At the same time, the shift fork mechanism lifting platform 302 disengages from the upper fixed shaft 101 and lower fixed shaft 102 of the door panel. When the door panel 100 needs to be lowered, the shift fork mechanism unlocking hook 301 unlocks the fixed shaft limiting mechanism 500 of the first and second tracks. Then, the shift fork mechanism engages with the upper fixed shaft 101 and lower fixed shaft 102 of the door panel respectively, so that the upper fixed shaft 101 and lower fixed shaft 102 of the door panel drive the corresponding door panel along the horizontal section 205 of the track, through the arc section 206 of the track, to the vertical section 207 of the track.

[0054] like Figure 8 and Figure 9As shown, each track includes a horizontal section 205, a circular arc section 206, and a vertical section 207. Both the first and second tracks are equipped with a fixed shaft limiting mechanism 500. Each track includes two track profiles 208 and a fixed base plate 209. The two track profiles 208 are fixed on the fixed base plate 209, and the three together form the movement space of the track wheel. The end face of the track profile 208 is T-shaped.

[0055] like Figure 12-14 As shown, the fixed shaft limiting mechanism 500 is located at the junction of the horizontal section 205 and the circular section 206 of the track. It includes an unlocking surface 501, a limiting pin 502, a slider 503, a slide rail 504, and a spring 505. When the upper or lower fixed shaft enters the horizontal section of the track, the limiting mechanism restricts the upper or lower fixed shaft from moving in the opposite direction, preventing the fixed shaft from independently entering the circular section of the track. When the upper or lower fixed shaft needs to enter the circular section of the track from the horizontal section, the limiting mechanism is unlocked by a fork mechanism. The fork structure engages with the upper or lower fixed shaft, driving the upper and lower fixed shafts of the door panel to sequentially enter the circular section and then the vertical section of the track. Specifically, the fork mechanism unlocks the limiting mechanism: the unlocking hook 301 of the fork mechanism achieves unlocking by contacting the unlocking surface 501 of the limiting mechanism. The specific shape of the unlocking surface 501 is determined according to the actual situation.

[0056] like Figure 4 As shown, a door panel ejection mechanism 600 is provided at the horizontal section 205 of the track, including a push arm 601, an upper linear slide rail 602, a lower linear slide rail 603, an upper ejection slider 604, a lower ejection slider 605, and a tension spring 606. The upper and lower ends of the push arm are in contact with the upper fixed shaft 101 and the lower fixed shaft 102 of the door panel that are close to it, respectively. When the limiting mechanism is unlocked, the tension of the tension spring 606 of the door panel ejection mechanism pushes the door panel to move towards the arc section 206 of the track.

[0057] Each door panel 100 is equipped with two equal-width spacers 106 and a sealing strip 107. The spacers 106 are located at the two ends of the door panel 100, and the sealing strip 107 is located at the lower end of the door panel 100. During the independent lifting of each door panel 100, the spacers 106 prevent collisions between adjacent door panels and ensure that the door panels 100 are arranged horizontally according to a certain rule after being lifted into position. Figure 7 As shown. The sealing strip 107 prevents adjacent door panels from colliding directly after the door panel is lowered, and also achieves a sealing effect.

[0058] In this embodiment of the invention, the door panels are equipped with dual fixed shafts at both ends. Each door panel is lifted and lowered by four fixed shafts, preventing twisting and deformation, greatly improving stability and noise reduction. Since each door panel lifts independently without interference, the lifting speed is significantly increased. Furthermore, the higher door panel height makes it more aesthetically pleasing. After lifting, the door panels are arranged vertically side-by-side, reducing the risk of deformation. Therefore, this invention achieves the triple benefits of low operating noise, the ability to use aesthetically pleasing wide door panels, and rapid lifting.

[0059] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A single-sided double-track high-speed lifting door, comprising a door panel and a door frame, characterized in that: The door panel is provided with double fixed shafts at both ends; Each side of the door frame is equipped with double tracks and double power chains; Each of the power chains is equipped with a shift fork mechanism, which drives the double fixed shafts of the door panel, thereby driving the door panel to rise and fall along the defined direction of the double tracks.

2. The single-sided bi-rail rapid lift door according to claim 1, wherein: The dual tracks are a first track and a second track; the dual power chains are a first power chain and a second power chain. The door panel has two fixed shafts at its two ends, namely an upper fixed shaft and a lower fixed shaft. The upper fixed shaft is provided with an upper track wheel, and the lower fixed shaft is provided with a connecting arm. The end of the connecting arm is provided with a lower track wheel. The upper track wheel cooperates with the first track, and the lower track wheel cooperates with the second track.

3. The single-sided double-track high-speed lifting door according to claim 1, characterized in that: The fork mechanism includes an unlocking hook and a lifting platform. The lifting platform works in conjunction with the fixed shaft of the door panel to realize the lifting and lowering of the door panel.

4. The single-sided double-track high-speed lifting door according to claim 1, characterized in that: Each track includes a horizontal section, a circular arc section, and a vertical section. Both the first and second tracks are equipped with fixed axis limiting mechanisms.

5. The single-sided double-track high-speed lifting door according to claim 4, characterized in that: The fixed shaft limiting mechanism is located at the junction of the horizontal section and the circular section of the track. It includes an unlocking surface, a limiting pin, a slider, a slide rail, and a spring. When the upper or lower fixed shaft enters the horizontal section of the track, the fixed shaft limiting mechanism restricts the upper or lower fixed shaft from moving in the opposite direction, preventing the fixed shaft from entering the circular section on its own. When the upper or lower fixed shaft needs to enter the circular section of the track from the horizontal section, the fixed shaft limiting mechanism is unlocked by a shift fork mechanism. The shift fork structure is engaged with the upper or lower fixed shaft, driving the upper and lower fixed shafts of the door panel to enter the circular section and the vertical section of the track in sequence.

6. The single-sided double-track high-speed lifting door according to claim 5, characterized in that: The horizontal section of the track is equipped with a door panel ejection mechanism, which includes a push arm, an upper linear slide rail, a lower linear slide rail, an upper ejection slider, a lower ejection slider, and a tension spring. The upper and lower ends of the push arm are in contact with the upper and lower fixed shafts of the door panel being approached, respectively. When the limiting mechanism is unlocked, the tension spring of the door panel ejection mechanism pushes the door panel to move towards the arc section of the track.

7. The single-sided double-track high-speed lifting door according to claim 1, characterized in that: Each door panel is provided with a spacer block and a sealing strip. The spacer block is located at both ends of the door panel, and the sealing strip is located at the lower end of the door panel.

8. The single-sided double-track high-speed lifting door according to claim 1, characterized in that: The track includes two track profiles and a fixed base plate. The track profiles are fixed on the fixed base plate, and the three together form the movement space of the track wheel. The end face of the track profile is T-shaped.

9. The single-sided double-track high-speed lifting door according to claim 1, characterized in that: It also includes a power transmission system, wherein a motor, a main drive wheel, a first driven wheel, a second driven wheel, a third driven wheel, and corresponding first chains, second chains, and third chains are installed on one side of the door frame, and a fourth driven wheel, a fifth driven wheel, a sixth driven wheel, a seventh driven wheel, and corresponding fourth chains, fifth chains, and sixth chains are installed on the other side of the door frame. A drive shaft is installed between the third driven wheel and the fourth driven wheel to achieve synchronous movement on both sides.

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