Automatic lifting door with protection structure

Abstract

The utility model discloses an automatic overhead door with a protection structure, which belongs to the technical field of machinery and comprises a door frame upright post, and an overhead door component is mounted on the door frame upright post; the lifting door assembly comprises a driving assembly and a connecting assembly, a limiting assembly used for limiting the lifting door assembly is installed at the rear end of the portal stand column, and the limiting assembly is connected with the connecting assembly; a protection assembly is installed at the lower end of the lifting door assembly and connected with the connecting assembly. By means of the mode, whether vehicles, pedestrians or falling objects exist below the lifting door or not can be detected, the situation that vehicles, pedestrians or accidentally falling objects which do not completely drive away due to faults or flameout below the lifting door are pressed is avoided, the limiting rod can be inserted into the lower end of the lifting door to limit the lifting door, and the safety of the lifting door is improved. And the driving assembly or the connecting assembly is prevented from being damaged, so that the lifting door is prevented from falling under the action of gravity to smash vehicles or pedestrians below, and the safety is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, and particularly relates to an automatic lifting door with a protection structure. Background Art

[0002] A lifting door is a convenient and safe type of door. It controls the up and down movement of the door body through an electric motor or a hydraulic system to achieve the function of automatic opening and closing. It can effectively protect the vehicles and items in the garage from the external environment and improve the safety and convenience of the garage.

[0003] Chinese Patent CN216974579U discloses a protective lifting automatic protection door device, including a door frame column, a lifting door slideway, and a lifting door frame; the door frame column is used to support the components on the device, the lifting door slideway is opened on the door frame column, the lifting door frame is installed on the lifting door slideway, and a pneumatic lifting structure, an equipment failure emergency stop structure, and a lifting door fixing structure are provided on the door frame column; among them, the pneumatic lifting structure includes: a cylinder, a cylinder groove, a folding frame, two connectors, and two hinge seats; the cylinder groove is opened inside the door frame column, the cylinder is installed in the cylinder groove, the two connectors are installed on the cylinder, and the upper end of the folding frame is installed on the two connectors.

[0004] However, when the lifting door of this patent is closed, it is impossible to judge whether there are falling objects, vehicles or pedestrians below it. When it is closed, it may press the objects, vehicles or even pedestrians directly below it, and the safety performance is low.

[0005] Based on this, the utility model designs an automatic lifting door with a protection structure to solve the above problems. Summary of the Utility Model

[0006] In view of the above-mentioned drawbacks of the prior art, the utility model provides an automatic lifting door with a protection structure.

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0008] An automatic lifting door with a protection structure, including a door frame column;

[0009] A lifting door assembly is installed on the door frame column;

[0010] The lifting door assembly includes a driving component and a connecting component. Both the driving component and the connecting component are connected to the door frame column, and the driving component and the connecting component are connected;

[0011] A limiting component for limiting the lifting door assembly is installed at the rear end of the door frame column, and the limiting component is connected to the connecting component;

[0012] A protection component is installed at the lower end of the lifting door component, and the protection component is connected to the connection component.

[0013] Furthermore, the driving component includes an L-shaped plate, a first linear guide rail, a hydraulic cylinder, a moving plate, and a first connecting rod. Two symmetrically arranged L-shaped plates are respectively fixedly connected to the left and right sides of the rear end of the gantry column. The slide rails of the two first linear guide rails are respectively fixedly connected to the inner sides of the upper ends of the L-shaped plates. The sliders of the first linear guide rails are respectively fixedly connected to the moving plate. A hydraulic cylinder is fixedly connected to the lower end of the right L-shaped plate. The output end of the hydraulic cylinder is fixedly connected to the lower end of the right moving plate. The inner end of the moving plate is fixedly connected to the first connecting rod.

[0014] Furthermore, the first connecting rod is connected to the connection component.

[0015] Furthermore, the connection component includes a lifting door, a limiting groove, a limiting block, a rotating shaft, a second connecting rod, a first connecting plate, a second connecting plate, and a connecting block. Limiting grooves are respectively opened on the inner walls of the left and right ends of the gantry column. Two limiting blocks are respectively in sliding connection with the limiting grooves in a fitting manner. The inner ends of the limiting blocks are rotatably connected to the rotating shafts, and the rotating shafts are respectively fixedly connected to the middle parts of the left and right ends of the lifting door. Second connecting rods are respectively fixedly connected to the upper sides of the inner walls of the left and right ends of the gantry column. Two groups of connecting blocks arranged front and rear are respectively fixedly connected to the rear sides of the left and right ends of the lifting door. The two ends of the two groups of first connecting plates are respectively rotatably connected to the second connecting rod on the same side and the connecting block at the rear side. The two ends of the two groups of second connecting plates are respectively rotatably connected to the first connecting rod on the same side and the connecting block at the front side.

[0016] Furthermore, the limiting component includes an installation groove, a fixing plate, an electric cylinder, a second linear guide rail, an installation plate, and a limiting rod. Installation grooves are respectively opened on the left and right sides of the rear end of the gantry column. The front side wall of the installation groove is fixedly connected to the fixing plate. The outer end of the fixing plate is fixedly connected to the electric cylinder. The slide rails of the two groups of second linear guide rails are respectively fixedly connected to the front side wall of the fixing plate, and the second linear guide rail is located inside the fixing plate. The rear ends of the sliders of the second linear guide rail are respectively fixedly connected to the installation plate. The output ends of the electric cylinder are respectively fixedly connected to the outer ends of the installation plate. The inner end of the installation plate is fixedly connected to the limiting rod.

[0017] Furthermore, the limiting rod is in contact connection with the rear side of the lower end of the lifting door.

[0018] Furthermore, the limiting rod is arranged in a dislocation manner with the connecting block, and the limiting rod is located at the rear end of the rear connecting block.

[0019] Furthermore, the protection component includes a spring buffer, a contact switch, and a resisting plate. Spring buffers are respectively fixedly connected to the left and right ends of the rear side of the lower end of the lifting door. The lower ends of the spring buffers are respectively fixedly connected to the resisting plate. A contact switch is fixedly connected to the rear side of the lower end of the lifting door.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] When a vehicle needs to enter or exit the garage in the present utility model, the driving component of the lifting door assembly drives the connecting component to rotate, causing the lower end of the connecting component to rotate forward by ninety degrees. The limiting component limits the connecting component to prevent damage to the driving component or the connecting component, which may cause the connecting component to fall under the action of gravity and hit the vehicle or pedestrian below. When the connecting component is closed, the protection component detects whether there are still vehicles, pedestrians or dropped objects below it. When no detection is made, the driving component drives the connecting component to close normally. When the protection component detects that there are still vehicles, pedestrians or dropped objects below it, it controls the driving component to drive the connecting component to open again to prevent pressing on the vehicle, pedestrian or accidentally dropped object that has not completely left due to a fault or flameout below;

[0022] When the lifting door of the present utility model is closed, the lifting door drives the spring buffer and the contact switch to rotate. The spring buffer drives the pressing plate to rotate. When there are vehicles, pedestrians or dropped objects below it, the pressing plate first contacts the vehicle, pedestrian or dropped object. The vehicle, pedestrian or dropped object presses on the pressing plate, driving the pressing plate to move towards the lifting door and compress the spring of the spring buffer. When the pressing plate contacts the contact switch, the contact switch controls the hydraulic cylinder to drive the moving plate to move upward and reopen the lifting door to prevent pressing on the vehicle, pedestrian or dropped object below, and can prevent the vehicle or pedestrian from being too close when entering the garage and being within the rotation trajectory of the lifting door, resulting in the lifting door hitting the vehicle or pedestrian when rotating and opening. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 Three-dimensional view of an automatic lifting door with a protection structure according to the present utility model Figure 1 ;

[0025] Figure 2 Front view of an automatic lifting door with a protection structure according to the present utility model;

[0026] Figure 3 Right view of an automatic lifting door with a protection structure according to the present utility model;

[0027] Figure 4 Three-dimensional view of an automatic lifting door with a protection structure according to the present utility model Figure 2 ;

[0028] Figure 5 A sectional view taken along the A-A direction of Figure 3 ;

[0029] Figure 6 is Figure 4 an enlarged view of the position B in

[0030] Figure 7 is Figure 5 an enlarged view of the position C in

[0031] The reference numerals in the figure respectively represent:

[0032] 1. Gantry column; 2. Lifting door assembly; 21. Driving assembly; 211. L-shaped plate; 212. First linear guide; 213. Hydraulic cylinder; 214. Moving plate; 215. First connecting rod; 22. Connecting assembly; 221. Lifting door; 222. Limiting groove; 223. Limiting block; 224. Rotating shaft; 225. Second connecting rod; 226. First connecting plate; 227. Second connecting plate; 228. Connecting block; 3. Limiting assembly; 31. Installation groove; 32. Fixed plate; 33. Electric cylinder; 34. Second linear guide; 35. Installation plate; 36. Limiting rod; 4. Protection assembly; 41. Spring buffer; 42. Contact switch; 43. Bracing plate. Detailed implementation manners

[0033] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0034] The "left", "right", "front", "rear", "upper" and "lower" mentioned in the following description are oriented in the perspective direction of the front view.

[0035] In some embodiments, please refer to the accompanying drawings of the specification Figures 1-7 , an automatic lifting door with a protection structure, comprising a gantry column 1;

[0036] The gantry column 1 is provided with a lifting door assembly 2;

[0037] The lifting door assembly 2 includes a driving assembly 21 and a connecting assembly 22. Both the driving assembly 21 and the connecting assembly 22 are connected to the gantry column 1, and the driving assembly 21 and the connecting assembly 22 are connected;

[0038] A limiting component 3 for limiting the lifting door assembly 2 is installed at the rear end of the gantry column 1, and the limiting component 3 is connected to the connecting component 22;

[0039] A protection component 4 is installed at the lower end of the lifting door assembly 2, and the protection component 4 is connected to the connecting component 22.

[0040] When a vehicle needs to enter or exit the garage, the driving component 21 of the lifting door assembly 2 drives the connecting component 22 to rotate, causing the lower end of the connecting component 22 to rotate forward by ninety degrees. The limiting component 3 limits the connecting component 22 to prevent damage to the driving component 21 or the connecting component 22, which may cause the connecting component 22 to fall under the action of gravity and hit the vehicle or pedestrian below. When the connecting component 22 is closed, the protection component 4 detects whether there are still vehicles, pedestrians, or fallen objects below it. When no detection is made, the driving component 21 drives the connecting component 22 to close normally. When the protection component 4 detects that there are still vehicles, pedestrians, or fallen objects below it, it controls the driving component 21 to drive the connecting component 22 to open again to prevent pressing the vehicle, pedestrian, or accidentally fallen object that has not completely left due to a malfunction or engine shutdown below;

[0041] The driving component 21 includes an L-shaped plate 211, a first linear guide rail 212, a hydraulic cylinder 213, a moving plate 214, and a first connecting rod 215. Two symmetrically arranged L-shaped plates 211 are respectively fixedly connected to the left and right sides of the rear end of the gantry column 1. The slide rails of the two first linear guide rails 212 are respectively fixedly connected to the inner sides of the upper ends of the L-shaped plates 211. The sliders of the first linear guide rails 212 are respectively fixedly connected to the moving plate 214. The lower end of the right L-shaped plate 211 is fixedly connected to the hydraulic cylinder 213, and the output end of the hydraulic cylinder 213 is fixedly connected to the lower end of the right moving plate 214. The inner end of the moving plate 214 is fixedly connected to the first connecting rod 215.

[0042] The first connecting rod 215 is connected to the connecting component 22.

[0043] The connection component 22 includes a lifting door 221, a limit groove 222, a limit block 223, a rotating shaft 224, a second connecting rod 225, a first connecting plate 226, a second connecting plate 227, and a connecting block 228. Limit grooves 222 are provided on the inner walls of the left and right ends of the gantry column 1. Two limit blocks 223 are respectively in sliding connection with the limit grooves 222 in a fitting manner. The inner ends of the limit blocks 223 are rotatably connected with rotating shafts 224, and the rotating shafts 224 are respectively fixedly connected to the middle parts of the left and right ends of the lifting door 221. Second connecting rods 225 are fixedly connected to the upper sides of the inner walls of the left and right ends of the gantry column 1. Two groups of connecting blocks 228 arranged front and back are fixedly connected to the rear sides of the left and right ends of the lifting door 221. The two ends of the two groups of first connecting plates 226 are respectively rotatably connected to the second connecting rod 225 on the same side and the connecting block 228 at the rear side. The two ends of the two groups of second connecting plates 227 are respectively rotatably connected to the first connecting rod 215 on the same side and the connecting block 228 at the front side.

[0044] During use, the hydraulic cylinder 213 drives the moving plate 214 to move up and down under the guiding action of the first linear guide rail 212. The moving plate 214 drives the first connecting rod 215 to move up and down. The first connecting rod 215 drives the second connecting plate 227 to rotate and move up and down. The second connecting plate 227 drives the connecting block 228 and the lifting door 221 to rotate and move up and down. The lifting door 221 drives the other connecting block 228 to rotate and move up and down. The connecting block 228 drives the first connecting plate 226 to rotate. At the same time, the lifting door 221 drives the rotating shaft 224 to rotate and move up and down. The rotating shaft 224 drives the limit block 223 to move up and down along the limit groove 222 until the lifting door 221 rotates 90 degrees to the vertical or horizontal state. At this time, the lifting door 221 is in the closed or open state.

[0045] The limit component 3 includes an installation groove 31, a fixing plate 32, an electric cylinder 33, a second linear guide rail 34, an installation plate 35, and a limit rod 36. Installation grooves 31 are provided on the left and right sides of the rear end of the gantry column 1. The front side wall of the installation groove 31 is fixedly connected with a fixing plate 32. The outer end of the fixing plate 32 is fixedly connected with an electric cylinder 33. The slide rails of the two groups of second linear guide rails 34 are respectively fixedly connected to the front side wall of the fixing plate 32, and the second linear guide rail 34 is located inside the fixing plate 32. The rear ends of the sliders of the second linear guide rail 34 are fixedly connected with installation plates 35. The output ends of the electric cylinder 33 are respectively fixedly connected to the outer ends of the installation plates 35. The inner end of the installation plate 35 is fixedly connected with a limit rod 36.

[0046] The limit rod 36 is in contact connection with the rear side of the lower end of the lifting door 221.

[0047] The limit rod 36 is arranged in a staggered manner with the connecting block 228, and the limit rod 36 is located at the rear end of the rear connecting block 228.

[0048] When the lifting door 221 is in the horizontal opening state, the electric cylinder 33 drives the mounting plate 35 to move inward under the guiding action of the second linear guide 34. The mounting plate 35 drives the limiting rod 36 to move inward and insert into the lower end of the lifting door 221 to limit the lifting door 221, preventing damage to the driving assembly 21 or the connecting assembly 22, which may cause the lifting door 221 to fall under the action of gravity and hit the vehicle or pedestrian below, further increasing safety;

[0049] The protection assembly 4 includes a spring buffer 41, a contact switch 42 and a pressing plate 43. Spring buffers 41 are fixedly connected to the left and right ends of the rear side of the lower end of the lifting door 221. The lower ends of the spring buffers 41 are fixedly connected to the pressing plate 43. A contact switch 42 is fixedly connected to the rear side of the lower end of the lifting door 221.

[0050] When the lifting door 221 is closed, the lifting door 221 drives the spring buffer 41 and the contact switch 42 to rotate. The spring buffer 41 drives the pressing plate 43 to rotate. When there is a vehicle, pedestrian or falling object below it, the pressing plate 43 first contacts the vehicle, pedestrian or falling object. The vehicle, pedestrian or falling object presses the pressing plate 43 and drives the pressing plate 43 to move towards the lifting door 221 to compress the spring of the spring buffer 41. When the pressing plate 43 contacts the contact switch 42, the contact switch 42 controls the hydraulic cylinder 213 to drive the moving plate 214 to move upward to reopen the lifting door 221, preventing the vehicle, pedestrian or falling object below from being pressed, and preventing the vehicle or pedestrian from being too close when entering the garage and being within the rotation trajectory of the lifting door 221, so that the lifting door 221 hits the vehicle or pedestrian when rotating and opening.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic lifting door with a protective structure, comprising a door frame column (1), characterized in that: A lifting door assembly (2) is installed on the door frame column (1); The lifting door assembly (2) comprises a driving assembly (21) and a connecting assembly (22), wherein the driving assembly (21) and the connecting assembly (22) are both connected to the door frame column (1), and the driving assembly (21) and the connecting assembly (22) are connected; A limiting assembly (3) for limiting the position of the lifting door assembly (2) is installed at the rear end of the door frame column (1), and the limiting assembly (3) is connected to the connecting assembly (22); A protection component (4) is installed at the lower end of the lifting door component (2), and the protection component (4) is connected to the connection component (22).

2. The automatic lifting door with a protective structure according to claim 1, characterized in that: The driving assembly (21) comprises an L-shaped plate (211), a first linear guide rail (212), a hydraulic cylinder (213), a movable plate (214) and a first connecting rod (215); two groups of symmetrically arranged L-shaped plates (211) are respectively fixedly connected to the left and right sides of the rear end of the door frame column (1); the slide rails of the two groups of first linear guide rails (212) are respectively fixedly connected to the inner side of the upper end of the L-shaped plate (211); the slide blocks of the first linear guide rails (212) are respectively fixedly connected to the movable plate (214); the lower end of the right L-shaped plate (211) is fixedly connected to the hydraulic cylinder (213); the output end of the hydraulic cylinder (213) is fixedly connected to the lower end of the right movable plate (214); and the inner end of the movable plate (214) is fixedly connected to the first connecting rod (215).

3. The automatic lifting door with a protective structure according to claim 2, characterized in that: The first connecting rod (215) is connected to the connecting assembly (22).

4. The automatic lifting door with a protective structure according to claim 3, characterized in that: The connecting assembly (22) comprises a lifting door (221), a limiting groove (222), a limiting block (223), a rotating shaft (224), a second connecting rod (225), a first connecting plate (226), a second connecting plate (227) and a connecting block (228); the limiting grooves (222) are provided on the inner walls of the left and right ends of the door frame column (1); the two limiting blocks (223) are respectively slidably connected to the limiting grooves (222); the inner ends of the limiting blocks (223) are rotatably connected to the rotating shafts (224); the rotating shafts (224) are respectively connected to the lifting door (221), and the first connecting plate (226), the second connecting plate (227) and the connecting block (228); The middle of the left and right ends of the door (221) are fixedly connected, the upper sides of the inner walls of the left and right ends of the door frame column (1) are fixedly connected with second connecting rods (225), the rear sides of the left and right ends of the lifting door (221) are fixedly connected with two groups of front and rear connecting blocks (228), the two ends of the two groups of first connecting plates (226) are respectively rotatably connected to the second connecting rod (225) on the same side and the connecting block (228) on the rear side, and the two ends of the two groups of second connecting plates (227) are respectively rotatably connected to the first connecting rod (215) on the same side and the connecting block (228) on the front side.

5. The automatic lifting door with a protective structure according to claim 4, characterized in that: The limit assembly (3) comprises a mounting groove (31), a fixing plate (32), an electric cylinder (33), a second linear guide rail (34), a mounting plate (35) and a limit rod (36). The left and right sides of the rear end of the door frame column (1) are both provided with mounting grooves (31). The front side wall of the mounting groove (31) is fixedly connected to the fixing plate (32). The outer end of the fixing plate (32) is fixedly connected to the electric cylinder (33). The slide rails of the two sets of second linear guide rails (34) are respectively fixedly connected to the front side wall of the fixing plate (32). The second linear guide rails (34) are located on the inner side of the fixing plate (32). The rear ends of the sliders of the second linear guide rails (34) are both fixedly connected to the mounting plate (35). The output ends of the electric cylinder (33) are respectively fixedly connected to the outer ends of the mounting plate (35). The inner end of the mounting plate (35) is fixedly connected to the limit rod (36).

6. The automatic lifting door with a protective structure according to claim 5, characterized in that: The limiting rod (36) is in contact with the rear side of the lower end of the lifting door (221).

7. The automatic lifting door with a protective structure according to claim 6, characterized in that: The limiting rod (36) and the connecting block (228) are arranged in a staggered manner, and the limiting rod (36) is located at the rear end of the rear connecting block (228).

8. The automatic lifting door with a protective structure according to claim 7, characterized in that: The protection assembly (4) comprises a spring buffer (41), a contact switch (42) and a stop plate (43); the left and right ends of the rear side of the lower end of the lifting door (221) are fixedly connected with the spring buffer (41); the lower ends of the spring buffer (41) are fixedly connected with the stop plate (43); and the rear side of the lower end of the lifting door (221) is fixedly connected with the contact switch (42).

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