Front and back synchronous lifting door structure

Abstract

The utility model discloses a front and back synchronous overhead door structure, which belongs to the related technical field of overhead doors and comprises a base, and synchronous overhead door components for alternately opening are mounted on the base. The synchronous lifting door assembly comprises a frame assembly, a lifting door device and a belt adjusting device, the base is connected with the frame assembly, the frame assembly is connected with the lifting door device and the belt adjusting device, and the lifting door device is connected with the belt adjusting device; the lifting door device is provided with a speed buffering assembly used for buffering and speed reduction. By means of the mode, the belt of the synchronous lifting door is adjusted, the belt can be prevented from loosening or falling off or being tightened and broken, the service life of the device is prolonged, meanwhile, personnel and a machine can work without shutdown on the premise that the personnel and the machine are isolated through alternate operation of the device, the safety of the personnel is guaranteed, and meanwhile the working efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to lifting doors, and in particular to a front and rear synchronous lifting door structure. Background Art

[0002] In industrial production, front-end personnel are usually required to load materials, and back-end machines are required to take materials online. For work safety, lifting doors are usually used to separate the workers from the machines to prevent machine failures during work from causing harm to the workers.

[0003] For example, Chinese utility model patent CN219826626U discloses a new type of lifting door, in which vertically arranged door posts are respectively arranged at the bottom of both ends of the door beam, the top end of the door post is connected to the door beam, and the bottom end is fixed to the ground; vertical slide rails are evenly distributed on the inner side of the door post; door bodies are respectively installed between the slide rails, and the two sides of the door bodies are respectively slidably connected to the slide rails; a lifting wheel assembly is installed at one end of the door beam; pulley assemblies are evenly distributed on the door beam; a rope body is installed on the lifting wheel assembly; the rope body passes around the pulley assembly and is connected to the door body on one side.

[0004] However, it still has the following disadvantages: when the lifting door is opened, the staff can transport materials into the device, but after it is closed, the staff cannot continue the next feeding, resulting in low continuity of the device operation.

[0005] Based on this, the utility model designs a front and rear synchronous lifting door structure to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a front and rear synchronous lifting door structure.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A front and rear synchronous lifting door structure comprises a base, on which a synchronous lifting door assembly for alternate opening is mounted;

[0009] The synchronous lifting door assembly comprises a frame assembly, a lifting door device and a belt adjusting device, the base is connected to the frame assembly, the frame assembly is connected to the lifting door device and the belt adjusting device, and the lifting door device is connected to the belt adjusting device;

[0010] The lifting door device is provided with a speed buffer component for buffering deceleration.

[0011] Furthermore, the frame assembly includes a support frame, a support plate, support column one and support column two. The upper end of the base is fixedly connected to the support frame, the support frame is connected to the lifting door device, the left and right ends of the support frame are fixedly connected to support column one, a support plate is fixedly connected inside the support frame, a pair of support column two are fixedly connected to the left and right ends of the inner wall on the front and rear ends of the support frame, and the upper and lower ends of support column one are fixedly connected to support column two.

[0012] Furthermore, the support column 1 is connected to the belt adjusting device.

[0013] Furthermore, the lifting door device includes a track cylinder, a fixed plate, a lifting door, a belt, a clamping plate, a limiting slide groove and a pulley. The opposing ends of the two support columns are fixedly connected to the track cylinder, the output end of the track cylinder is fixedly connected to the fixed plate, the left and right outer walls of the support frame are provided with a limiting slide groove, the limiting slide groove is connected to the buffer assembly, the lifting door is slidably connected in the limiting slide groove, the left and right sides of the opposing ends of the lifting door are fixedly connected to the clamping plates, the rear end of the fixed plate is meshed with the belt, the rear end of the fixed plate is fixedly connected to the rear end clamping plate by bolts, the left and right ends of the support frame are rotatably connected to the pulleys near the four corners, the pulleys are connected by belt transmission, and the belt is connected to the belt adjusting device.

[0014] Furthermore, the limiting slide groove 1 and the lifting door are both connected to the buffer assembly.

[0015] Furthermore, the belt adjustment device includes a limit plate, a limit slide groove 2, a slider 1, a bolt, a pulley 2, a screw, a slider 2 and a slide rail. The upper and lower sides of the opposite end of the support column 1 are fixedly connected to the limit plate, and the limit slide groove 2 is provided on the limit plate. The slider 1 is slidably connected to the limit plate, and the slider 1 passes through the limit slide groove 2 to fix the limit plate on the limit plate. The opposite end of the slider 1 is fixedly connected to a pair of slide rails, and the slide rails are slidably connected to the slider 2. The opposite ends of the slider 1 at the upper and lower ends are threadedly connected with the screw, and the screw passes through the slider 1 and is rotatably connected to the slider 2. The opposite ends of the sliders at the left and right ends are rotatably connected to the pulley 2, and the outer wall of the pulley 2 is connected to the belt transmission.

[0016] Furthermore, the slider 1 and the slider 2 are both L-shaped sliders.

[0017] Furthermore, the buffer assembly includes a slide groove, a block 1, a spring and a block 2. Slide grooves are provided at both ends of the lifting door. Block 1 is slidably connected in the slide groove. The bottom of the slide groove is fixedly connected to one end of the spring, and the other end of the spring is fixedly connected to block 1. Block 2 is fixedly connected to the inner walls of the opposing ends of the left and right limiting slide grooves.

[0018] The utility model has the following technical effects:

[0019] 1. The utility model adjusts the position of a slider 1 of a belt adjustment device of a synchronous lifting door assembly along a limiting slide groove 2 provided on a limiting plate. When the position adjustment of the slider 1 is completed, the slider 1 is fixed by a bolt. At this time, the screw rod is rotated to drive the slider 2 to move along the slide rail. The movement of the slider 2 drives the pulley 2 to move and tighten the belt of the lifting door device. When the adjustment is completed, the track cylinder on the support column 2 of the frame assembly is started, and the fixed plate is driven to move through the output end of the track cylinder. The rear clamping plate, the rear lifting door and the limiting slide groove 1 are driven to move through the movement of the fixed plate. The limiting slide groove 1 drives the front clamping plate and the front lifting door to move synchronously through the pulley 1. The function of the support column 1 is to support the limiting plate. The function of the support frame and the support plate is to divide the device into two parts, an upper part and an lower part. By adjusting the belt of the device, the belt can be prevented from being loosened and falling off or being stretched and broken, thereby extending the service life of the device. At the same time, the alternating operation of the device can realize that personnel and machines can work independently without stopping the machine under the premise of isolation, thereby ensuring the safety of personnel and improving the working efficiency of the device.

[0020] 2. The utility model compresses block one to move in the slide groove through block one and block two of the buffer assembly, and at the same time pulls up the spring, thereby reducing the descending speed of the lift door. When the lift door moves up, block one is no longer compressed, driving block one to reset. By reducing the running speed of the device, it can avoid running too fast and colliding with the bottom to cause damage, and it can also avoid that the belt breaks and directly falls to cause excessive impact to damage the lift door. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A three-dimensional structure of a front and rear synchronous lifting door structure of the utility model Figure 1 ;

[0023] Figure 2 It is a front view of a front and rear synchronous lifting door structure of the utility model;

[0024] Figure 3 It is a left view of a front and rear synchronous lifting door structure of the utility model;

[0025] Figure 4 A three-dimensional structure of a front and rear synchronous lifting door structure of the utility model Figure 2 ;

[0026] Figure 5 For along Figure 3 AA direction cross-sectional view;

[0027] Figure 6 for Figure 4 The enlarged view of point B in the middle;

[0028] Figure 7 for Figure 4 Enlarged view of point C in the middle;

[0029] Figure 8 for Figure 5 Enlarged view of point D in the middle.

[0030] The numbers in the figure represent:

[0031] 1. Base; 2. Synchronous lifting door assembly; 21. Frame assembly; 22. Lifting door device; 23. Belt adjustment device; 211. Support frame; 212. Support plate; 213. Support column one; 214. Support column two; 221. Track cylinder; 222. Fixed plate; 223. Lifting door; 224. Belt; 225. Clamping plate; 226. Limiting slide groove one; 227. Pulley one; 231. Limiting plate; 232. Limiting slide groove two; 233. Slider one; 234. Bolt; 235. Pulley two; 236. Screw; 237. Slider two; 238. Slide rail; 3. Buffer assembly; 31. Slide groove; 32. Block one; 33. Spring; 34. Block two. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] The utility model is further described below in conjunction with embodiments.

[0034] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0035] Example 1

[0036] Please refer to the instruction manual Figure 1-8 , a front and rear synchronous lifting door structure, comprising a base 1;

[0037] The base 1 is provided with a synchronous lifting door assembly 2 for alternate opening, and the synchronous lifting door assembly 2 is connected to a buffer assembly 3;

[0038] The synchronous lifting door assembly 2 includes a frame assembly 21, a lifting door device 22 and a belt adjusting device 23, the base 1 is connected to the frame assembly 21, the frame assembly 21 is connected to the lifting door device 22 and the belt adjusting device 23, and the lifting door device 22 is connected to the belt adjusting device 23 and the buffer assembly 3;

[0039] The frame assembly 21 includes a support frame 211, a support plate 212, a support column 1 213 and a support column 214. The upper end of the base 1 is fixedly connected to the support frame 211, the support frame 211 is connected to the lifting door device 22, the left and right ends of the support frame 211 are fixedly connected to the support column 1 213, the support plate 212 is fixedly connected inside the support frame 211, the left and right ends of the inner wall of the front and rear ends of the support frame 211 facing each other are fixedly connected to a pair of support columns 214, and the upper and lower ends of the support column 1 213 are fixedly connected to the support column 2 214;

[0040] The support column 1 213 is connected to the belt adjustment device 23;

[0041] The lifting door device 22 includes a track cylinder 221, a fixed plate 222, a lifting door 223, a belt 224, a clamping plate 225, a limiting slide 226 and a pulley 227. The opposite end of the support column 214 is fixedly connected to the track cylinder 221, and the output end of the track cylinder 221 is fixedly connected to the fixed plate 222. The outer walls of the left and right sides of the support frame 211 are both provided with a limiting slide 226, and the limiting slide 226 is connected to the buffer component 3. The limiting slide 226 is connected to the buffer component 3. A lifting door 223 is slidably connected in 226, and clamping plates 225 are fixedly connected to the left and right sides of the opposite ends of the lifting door 223. The rear end of the fixed plate 222 is meshed with the belt 224, and the rear end of the fixed plate 222 is fixedly connected to the rear clamping plate 225 by bolts. The left and right ends of the support frame 211 are rotatably connected to pulleys 227 near the four corners. The pulleys 227 are connected by a belt 224, and the belt 224 is connected to the belt adjustment device 23.

[0042] The limiting slide groove 226 and the lifting door 223 are both connected to the buffer assembly 3;

[0043] The belt adjustment device 23 includes a limit plate 231, a limit slide groove 232, a slider 233, a bolt 234, a pulley 235, a screw 236, a slider 237 and a slide rail 238. The upper and lower sides of the opposite end of the support column 1 213 are fixedly connected to the limit plate 231, and the limit slide groove 232 is provided on the limit plate 231. The slider 1 233 is slidably connected to the limit plate 231. The slider 1 233 passes through the limit slide groove 232 through the bolt 234. The limit plate 231 is fixed on the limit plate 231, and the opposite ends of the slider 1 233 are fixedly connected with a pair of slide rails 238, and the slider 237 is slidably connected to the slide rail 238. The opposite ends of the slider 1 233 at the upper and lower ends are threadedly connected with screw rods 236, and the screw rods 236 pass through the slider 1 233 and are rotatably connected to the slider 2 237. The opposite ends of the slider 2 237 at the left and right ends are rotatably connected with the pulley 235, and the outer wall of the pulley 235 is transmission-connected to the belt 224;

[0044] Preferably, the slider 1 233 and the slider 2 237 are both L-shaped sliders;

[0045] The L-shaped slider 1 233 and the slider 2 237 facilitate the fixing and installation of the screw rod 236;

[0046] In the embodiment of the utility model, when the device starts to adjust, the position of the slider 1 233 of the belt adjustment device 23 of the synchronous lifting door assembly 2 is adjusted along the limiting slide groove 232 provided on the limiting plate 231. When the position adjustment of the slider 1 233 is completed, the slider 1 233 is fixed by the bolt 234. At this time, the screw rod 236 is rotated to drive the slider 237 to move along the slide rail 238. The movement of the slider 237 drives the pulley 235 to move to tighten the belt 224 of the lifting door device 22. When the adjustment is completed, the track cylinder 221 on the support column 214 of the frame assembly 21 is started, and the fixed plate 222 is driven to move through the output end of the track cylinder 221. The movement of 222 drives the clamping plate 225 at the rear end, the lifting door 223 at the rear end and the limiting slide 226 to move. The limiting slide 226 drives the clamping plate 225 at the front end and the lifting door 223 at the front end to move synchronously through a pulley 227. The function of the support column 213 is to support the limiting plate 231. The function of the support frame 211 and the support plate 212 is to divide the device into two parts, the upper and lower parts. By adjusting the belt 224 of the device, the belt 224 can be prevented from loosening and falling off or being stretched and broken, thereby extending the service life of the device. At the same time, the alternating operation of the device can realize that personnel and machines can work without stopping under the premise of isolation, thereby ensuring the safety of personnel and improving the working efficiency of the device.

[0047] The synchronous lifting door assembly 2 is provided with a speed buffer assembly 3 for buffering and reducing speed;

[0048] The buffer assembly 3 includes a slide groove 31, a stopper 32, a spring 33 and a stopper 34. The left and right ends of the lifting door 223 are provided with slide grooves 31, and a stopper 32 is slidably connected in the slide groove 31. The bottom of the slide groove 31 is fixedly connected to one end of the spring 33, and the other end of the spring 33 is fixedly connected to the stopper 32. The inner walls of the left and right limit slide grooves 226 facing each other are fixedly connected to the stopper 34.

[0049] In the embodiment of the utility model, when the device starts to fall, the block 1 32 and the block 2 34 of the buffer assembly 3 compress the block 1 32 to move in the slide groove 31, and at the same time pull up the spring 33, and the descending speed of the lifting door 223 is reduced by the pulling of the spring 33. When the lifting door 223 moves up, the block 1 32 is no longer compressed and drives the block 1 32 to reset. By reducing the running speed of the device, it is avoided that the device runs too fast and collides with the bottom to cause damage, and it is also avoided that the belt 224 breaks and falls directly to cause excessive impact to damage the lifting door 223.

[0050] 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 aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such 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. A front and rear synchronous lifting door structure, comprising a base (1), characterized in that: A synchronous lifting door assembly (2) for alternate opening is installed on the base (1); The synchronous lifting door assembly (2) comprises a frame assembly (21), a lifting door device (22) and a belt adjusting device (23); the base (1) is connected to the frame assembly (21); the frame assembly (21) is connected to the lifting door device (22) and the belt adjusting device (23); and the lifting door device (22) is connected to the belt adjusting device (23); The lifting door device (22) is provided with a speed buffer component (3) for buffering deceleration.

2. The front and rear synchronous lifting door structure according to claim 1, characterized in that: The frame assembly (21) comprises a support frame (211), a support plate (212), a first support column (213) and a second support column (214); the upper end of the base (1) is fixedly connected to the support frame (211); the support frame (211) is connected to the lifting door device (22); the left and right ends of the support frame (211) are fixedly connected to the first support column (213); the support plate (212) is fixedly connected inside the support frame (211); the left and right ends of the inner wall of the front and rear ends of the support frame (211) facing each other are fixedly connected to a pair of second support columns (214); the upper and lower ends of the first support column (213) are fixedly connected to the second support column (214).

3. The front and rear synchronous lifting door structure according to claim 2, characterized in that: The support column 1 (213) is connected to the belt adjusting device (23).

4. The front and rear synchronous lifting door structure according to claim 3, characterized in that: The lifting door device (22) comprises a track cylinder (221), a fixing plate (222), a lifting door (223), a belt (224), a clamping plate (225), a limiting slide groove (226) and a pulley (227); the opposite end of the support column (214) is fixedly connected to the track cylinder (221); the output end of the track cylinder (221) is fixedly connected to the fixing plate (222); the outer walls on both sides of the support frame (211) are provided with a limiting slide groove (226); the limiting slide groove (226) is connected to the buffer component (3); the limiting slide groove (226) is connected to the buffer component (3); A lifting door (223) is slidably connected in the groove (226), and clamping plates (225) are fixedly connected on both sides of the opposite ends of the lifting door (223). The rear end of the fixed plate (222) is meshed and connected with the belt (224), and the rear end of the fixed plate (222) is fixedly connected to the rear clamping plate (225) by bolts. The left and right ends of the support frame (211) are rotatably connected to pulleys (227) near the four corners. The pulleys (227) are connected by a belt (224) for transmission, and the belt (224) is connected to the belt adjusting device (23).

5. The front and rear synchronous lifting door structure according to claim 4, characterized in that: The limiting sliding groove 1 (226) and the lifting door (223) are both connected to the buffer assembly (3).

6. The front and rear synchronous lifting door structure according to claim 5, characterized in that: The belt adjusting device (23) comprises a limit plate (231), a second limit slide groove (232), a slider (233), a bolt (234), a second pulley (235), a screw rod (236), a second slider (237) and a slide rail (238); the upper and lower sides of the opposite end of the support column (213) are fixedly connected to the limit plate (231); the limit slide groove (232) is provided on the limit plate (231); the slider (233) is slidably connected to the limit plate (231); the slider (233) passes through the limit slide groove (232) through the bolt (234) and is inserted into the limit slide groove (234). 32) The limit plate (231) is fixed on the limit plate (231), and the opposite ends of the slider 1 (233) are fixedly connected with a pair of slide rails (238), and the slide rails (238) are slidably connected with the slider 2 (237), and the opposite ends of the slider 1 (233) at the upper and lower ends are threadedly connected with screw rods (236), and the screw rods (236) pass through the slider 1 (233) and are rotatably connected with the slider 2 (237), and the opposite ends of the slider 2 (237) at the left and right ends are rotatably connected with the pulley 2 (235), and the outer wall of the pulley 2 (235) is transmission-connected with the belt (224).

7. The front and rear synchronous lifting door structure according to claim 6, characterized in that: The slider 1 (233) and the slider 2 (237) are both L-shaped sliders.

8. The front and rear synchronous lifting door structure according to claim 7, characterized in that: The buffer assembly (3) comprises a slide groove (31), a stopper 1 (32), a spring (33) and a stopper 2 (34); the left and right ends of the lifting door (223) are both provided with slide grooves (31); the stopper 1 (32) is slidably connected in the slide groove (31); the bottom of the slide groove (31) is fixedly connected to one end of the spring (33); the other end of the spring (33) is fixedly connected to the stopper 1 (32); the inner walls of the left and right end limiting slide grooves 1 (226) facing each other are both fixedly connected to the stopper 2 (34).

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