Windmill well guard

Abstract

The utility model discloses a kind of air shaft protection devices, it includes: hanger assembly, two protective plates and four connecting rods, hanger assembly includes first side frame and second side frame, the top of first side frame and second side frame is fixedly connected by two first telescopic components, two protective plates are rotatably connected with the bottom of first side frame and second side frame respectively, protective plate includes first plate body and second plate body, first plate body is slidably installed at the top of second plate body, every connecting rod includes first telescopic rod and second telescopic rod, one end of first telescopic rod is rotatably connected with one end of second telescopic rod, the two sides of first side frame top are rotatably connected with two first telescopic rods respectively, the two sides of second side frame top are rotatably connected with another two first telescopic rods, two first plate bodies are rotatably connected with four second telescopic rods respectively.The utility model can play a good protective effect to the air shaft of operation layer, its size is adjustable, with good applicability and reusability, conveniently conveying material.

Description

Technical Field

[0001] This utility model relates to the field of ventilation shaft protection equipment technology, and in particular to ventilation shaft protection devices. Background Technology

[0002] During construction, protective measures around ventilation shaft openings are crucial for construction safety. The openings require compliant and robust protective structures to prevent objects from falling and causing accidents. Construction ventilation shaft openings vary in size, and existing protective structures typically use protective plates whose length is customized to the shaft size. This results in low reusability of the protective plates, and the fixed plates cannot be moved. Furthermore, the protective plates can obstruct the transport of materials through the ventilation shaft. Utility Model Content

[0003] The purpose of this utility model is to provide a ventilation shaft protection device, which can play a good protective role for the ventilation shaft of the working layer. Its size is adjustable, and it has good applicability and reusability. The protective plates on both sides can rotate, which facilitates the transportation of materials through the ventilation shaft.

[0004] To achieve the above and other related objectives, this utility model provides a ventilation shaft protection device, comprising: a bracket assembly, two protective plates, and four connecting rods. The bracket assembly includes a first side frame and a second side frame, the top ends of which are fixedly connected by two first telescopic components. The two protective plates are rotatably connected to the bottom surfaces of the first and second side frames, respectively, which are disposed opposite to each other. Each protective plate includes a first plate body and a second plate body. The first plate body is slidably mounted on the top of the second plate body, and the end of the second plate body away from the first plate body is rotatably connected to either the first or second side frame. The first plate body and the second plate body are driven connected by an adjustment component, which is used to drive the first plate body along the... The second plate slides along its extension direction; each link includes a first telescopic rod and a second telescopic rod, one end of the first telescopic rod is rotatably connected to one end of the second telescopic rod, a first pivot is fixedly installed at the top of each of the two side walls of the first side frame, a second pivot is fixedly installed at the top of each of the two side walls of the second side frame, a third pivot is fixedly installed at the end of each of the two side walls of the first plate away from the second plate, two first pivots are rotatably connected to the ends of two first telescopic rods away from the second telescopic rods, two second pivots are rotatably connected to the ends of two other first telescopic rods away from the second telescopic rods, and four third pivots are rotatably connected to the ends of four second telescopic rods away from the first telescopic rods.

[0005] In one example of the ventilation shaft protection device of this utility model, the first telescopic component includes a first sleeve and a second sleeve. One end of the two first sleeves is vertically and fixedly connected to the top of the first side frame, and one end of the two second sleeves is vertically and fixedly connected to the top of the second side frame. The two second sleeves are respectively inserted into the two first sleeves along the extension direction of the two first sleeves. The second sleeves are provided with a plurality of first fixing holes, and the first sleeves are provided with two second fixing holes. The two second fixing holes are respectively engaged with the plurality of first fixing holes and fixedly connected by two fourth bolt assemblies.

[0006] In one example of the ventilation shaft protection device of this utility model, two first sleeves are respectively fixedly installed on both sides of the top surface of the first side frame facing the second side frame, and two second sleeves are respectively fixedly installed on both sides of the top surface of the second side frame facing the first side frame.

[0007] In one example of the ventilation shaft protection device of this utility model, the first plate includes a first plate surface, two first side plates, and a first crossbeam. The two ends of the first crossbeam are fixedly connected to the ends of the two first side plates away from the second plate. The second plate includes a second plate surface, two second side plates, a second crossbeam, and a third crossbeam. The two ends of the second crossbeam are fixedly connected to the ends of the two second side plates facing the first crossbeam. The two ends of the third crossbeam are fixedly connected to the ends of the two second side plates away from the first crossbeam. The first plate surface and the second plate surface are slidably connected. The two first side plates are slidably connected to the two second side plates. The adjusting assembly includes an adjusting screw. The adjusting screw passes through the middle of the first crossbeam and the second crossbeam. One end of the adjusting screw is rotatably connected to the first crossbeam. The adjusting screw is threadedly connected to the second crossbeam. The end of the adjusting screw away from the second crossbeam is provided with an external hexagonal portion.

[0008] In one example of the ventilation shaft protection device of this utility model, a locking bolt assembly is installed on each of the two first side plates facing the bracket assembly, and a sliding groove is provided on each of the two second side plates. The sliding groove is arranged along the extension direction of the second side plate, and the two sliding grooves respectively cooperate with the two locking bolt assemblies.

[0009] In one example of the ventilation shaft protection device of this utility model, a limiting plate is fixedly installed at the end of the adjusting screw away from the first crossbeam.

[0010] In one example of the ventilation shaft protection device of this utility model, the end of the second plate away from the first plate is rotatably connected to the bottom of the first side frame or the second side frame via several hinges.

[0011] In one example of the ventilation shaft protection device of this utility model, the first telescopic rod includes a first lead screw and a first rotating rod. The first lead screw passes through the first rotating rod along the extension direction of the first rotating rod and is threadedly connected to the first rotating rod. A first connecting plate is fixedly installed at the end of the first lead screw away from the first rotating rod. A first through hole is provided at the end of the first connecting plate away from the first lead screw. The first through hole cooperates with the first rotating shaft and the second rotating shaft. A second connecting plate is rotatably installed at the end of the first rotating rod away from the first lead screw.

[0012] In one example of the ventilation shaft protection device of this utility model, the second telescopic rod includes a second lead screw and a second rotating rod. The second lead screw passes through the second rotating rod along the extension direction of the second rotating rod and is threadedly connected to the second rotating rod. A third connecting plate is fixedly installed at the end of the second lead screw away from the second rotating rod. The third connecting plate is rotatably connected to the second connecting plate by a pin. A fourth connecting plate is rotatably installed at the end of the second rotating rod away from the second lead screw. The end of the fourth connecting plate away from the second rotating rod is provided with a second through hole, which cooperates with the third rotating shaft.

[0013] In one example of the ventilation shaft protection device of this utility model, anti-slip sleeves are fixedly installed on the outer walls of the first rotating rod and the second rotating rod.

[0014] This utility model relates to a ventilation shaft protection device. The device is mounted on a crossbeam at the ventilation shaft opening via a bracket assembly. Two protective plates cover the ventilation shaft opening on both sides of the crossbeam, effectively preventing accidents caused by falling objects. The two protective plates are rotatably connected to the bracket assembly. Four connecting rods connect the bracket assembly and the protective plates to form a stable structure. Pushing the protective plates causes them to rotate along the bracket assembly, opening the ventilation shaft opening for easy material transport. Two first telescopic components adjust the distance between the first and second side frames, matching the width of the bracket assembly to the width of the crossbeam at the ventilation shaft opening. Adjusting the first plate on the second plate allows for length adjustment, matching the length of the protective plate to the length of the ventilation shaft opening. Furthermore, controlling the extension and retraction of the first and second telescopic rods adjusts the length of the four connecting rods, thus improving the applicability of the protection device. This utility model provides excellent protection for the ventilation shaft at the working level. Its adjustable size offers excellent applicability and reusability. The rotating protective plates on both sides facilitate material transport through the ventilation shaft. Attached Figure Description

[0015] Figure 1 This is a side view of an embodiment of the ventilation shaft protection device of this utility model; Figure 2 This is a top view of an embodiment of the ventilation shaft protection device of this utility model; Figure 3This is a bottom view of the protective plate in one embodiment of the ventilation shaft protection device of this utility model; Figure 4 This is a schematic diagram of the structure of the protective plate in one embodiment of the ventilation shaft protection device of this utility model; Figure 5 This is a schematic diagram of the connecting rod in one embodiment of the ventilation shaft protection device of this utility model.

[0016] Component designation: 100 Hanger assembly; 110 First side frame; 111 First pivot; 120 Second side frame; 121 Second pivot; 130 First telescopic assembly; 131 First sleeve; 132 Second sleeve; 133 Fourth bolt assembly; 140 Hinge; 200 Protective plate; 210 First plate body; 211 First plate surface; 212 First side plate; 213 First crossbeam; 214 Third pivot; 215 Locking bolt assembly; 220 Second plate body; 221 Second plate surface; 222 Second side plate; 22 3 Second crossbeam; 224 Third crossbeam; 225 Slide groove; 230 Adjusting assembly; 231 Adjusting screw; 232 External hexagonal part; 233 Limiting plate; 300 Connecting rod; 310 First telescopic rod; 311 First screw; 312 First rotating rod; 313 First connecting plate; 314 Second connecting plate; 315 First through hole; 320 Second telescopic rod; 321 Second screw; 322 Second rotating rod; 323 Third connecting plate; 324 Fourth connecting plate; 325 Second through hole; 330 Anti-slip sleeve. Detailed Implementation

[0017] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0018] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise specified in this invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, equipment, and materials similar to or equivalent to those in the embodiments of this invention.

[0019] Please see Figures 1 to 5 This utility model provides a ventilation shaft protection device, comprising: a bracket assembly 100, two protective plates 200, and four connecting rods 300. The bracket assembly 100 includes a first side frame 110 and a second side frame 120, the top ends of the first side frame 110 and the second side frame 120 being fixedly connected by two first telescopic components 130. The two protective plates 200 are rotatably connected to the bottom surfaces of the first side frame 110 and the second side frame 120, respectively. Each protective plate 200 includes a first plate body 210 and a second plate body 220. The first plate body 210 is slidably mounted on the top of the second plate body 220. The end of the second plate body 220 away from the first plate body 210 is rotatably connected to either the first side frame 110 or the second side frame 120. The first plate body 210 and the second plate body 220 are driven connected by an adjusting component 230, which drives the first plate body 210 to slide along the extending direction of the second plate body 220. Each of the connecting rods 300 includes a first telescopic rod 310 and a second telescopic rod 320. One end of the first telescopic rod 310 is rotatably connected to one end of the second telescopic rod 320. A first rotating shaft 111 is fixedly installed at the top of each of the two side walls of the first side frame 110. A second rotating shaft 121 is fixedly installed at the top of each of the two side walls of the second side frame 120. A third rotating shaft 214 is fixedly installed at the end of each of the two side walls of the first plate 210 away from the second plate 220. The two first rotating shafts 111 are rotatably connected to the ends of the two first telescopic rods 310 away from the second telescopic rod 320. The two second rotating shafts 121 are rotatably connected to the ends of the other two first telescopic rods 310 away from the second telescopic rod 320. The four third rotating shafts 214 are rotatably connected to the ends of the four second telescopic rods 320 away from the first telescopic rod 310.

[0020] This utility model uses a hanging bracket assembly 100 installed on a crossbeam at the ventilation shaft opening. Two protective plates 200 cover the ventilation shaft openings on both sides of the crossbeam, effectively preventing safety accidents caused by falling objects. The two protective plates 200 are rotatably connected to the hanging bracket assembly 100. The connection between the four connecting rods 300 and the protective plates 200 and the hanging bracket assembly 100 can form a stable structure. Pushing the protective plates 200 can rotate them along the hanging bracket assembly 100, opening the ventilation shaft opening for convenient material conveying. The distance between the first side frame 110 and the second side frame 120 can be adjusted by the two first telescopic components 130, so that the width of the bracket assembly 100 matches the width of the crossbeam at the air shaft opening. The first plate 210 is driven to slide on the second plate 220 by the adjustment component 230, so that the length of the protective plate 200 matches the length of the air shaft opening. The first telescopic rod 310 and the second telescopic rod 320 are controlled to extend and retract, thereby adjusting the length of the four connecting rods 300, so that the two protective plates 200 are respectively set perpendicular to the first side frame 110 and the second side frame 120. The dimensions of the bracket assembly 100, the protective plate 200 and the connecting rods 300 of this utility model can all be adjusted, thereby improving the applicability of the protective device.

[0021] Please see Figures 1 to 5 In one example of the ventilation shaft protection device of this utility model, the first telescopic component 130 includes a first sleeve 131 and a second sleeve 132. One end of each of the two first sleeves 131 is vertically and fixedly connected to the top end of the first side frame 110, and one end of each of the two second sleeves 132 is vertically and fixedly connected to the top end of the second side frame 120. The two second sleeves 132 are respectively inserted into the two first sleeves 131 along their extension direction. Each second sleeve 132 has a plurality of first fixing holes, and each first sleeve 131 has two second fixing holes. The two second fixing holes respectively cooperate with the plurality of first fixing holes and are fixedly connected by two fourth bolt assemblies 133. The two first sleeves 131 are respectively fixedly installed on both sides of the top end of the surface of the first side frame 110 facing the second side frame 120, and the two second sleeves 132 are respectively fixedly installed on both sides of the top end of the surface of the second side frame 120 facing the first side frame 110.

[0022] Please see Figures 1 to 5In one example of the ventilation shaft protection device of this utility model, the first plate 210 includes a first plate surface 211, two first side plates 212, and a first crossbeam 213. The two ends of the first crossbeam 213 are respectively fixedly connected to the ends of the two first side plates 212 away from the second plate 220. The second plate 220 includes a second plate surface 221, two second side plates 222, a second crossbeam 223, and a third crossbeam 224. The two ends of the second crossbeam 223 are respectively fixedly connected to the ends of the two second side plates 222 facing the first crossbeam 213. The two ends of the third crossbeam 224 are respectively fixedly connected to the ends of the two second side plates 222 facing the first crossbeam 213. Plate 222 is fixedly connected to the end away from the first crossbeam 213. The first plate surface 211 is slidably connected to the second plate surface 221. The two first side plates 212 are slidably connected to the two second side plates 222 respectively. The adjusting assembly 230 includes an adjusting screw 231, which passes through the middle of the first crossbeam 213 and the second crossbeam 223. One end of the adjusting screw 231 is rotatably connected to the first crossbeam 213, and the adjusting screw 231 is threadedly connected to the second crossbeam 223. The end of the adjusting screw 231 away from the second crossbeam 223 has an external hexagonal portion 232. When controlling the adjusting assembly 230 to drive the first plate 210 to slide, a wrench is used to clamp the external hexagonal portion 232, and then the adjusting screw 231 is controlled to rotate, so that the adjusting screw 231 and the second crossbeam 223 move relative to each other. The adjusting screw 231 drives the first crossbeam 213 and the first plate 210 to move.

[0023] Please see Figures 1 to 5 In one example of the ventilation shaft protection device of this utility model, a locking bolt assembly 215 is respectively installed on one end of each of the two first side plates 212 facing the bracket assembly 100. A sliding groove 225 is provided on each of the two second side plates 222, the sliding groove 225 being arranged along the extending direction of the second side plate 222, and the two sliding grooves 225 respectively cooperating with the two locking bolt assemblies 215. A limiting plate 233 is fixedly installed on the end of the adjusting screw 231 away from the first crossbeam 213. The end of the second plate 220 away from the first plate 210 is rotatably connected to the bottom of the first side frame 110 or the second side frame 120 via several hinges 140. The cooperation between the locking bolt assembly 215 and the sliding groove 225 enhances the fixing stability of the first plate 210 and the second plate 220.

[0024] Please see Figures 1 to 5In one example of the ventilation shaft protection device of this utility model, the first telescopic rod 310 includes a first lead screw 311 and a first rotating rod 312. The first lead screw 311 passes through the first rotating rod 312 along the extension direction of the first rotating rod 312 and is threadedly connected to the first rotating rod 312. A first connecting plate 313 is fixedly installed at the end of the first lead screw 311 away from the first rotating rod 312. A first through hole 315 is provided at the end of the first connecting plate 313 away from the first lead screw 311. The first through hole 315 cooperates with the first rotating shaft 111 and the second rotating shaft 121. A second connecting plate 314 is rotatably installed at the end of the first rotating rod 312 away from the first lead screw 311. The second telescopic rod 320 includes a second lead screw 321 and a second rotating rod 322. The second lead screw 321 passes through the second rotating rod 322 along its extension direction and is threadedly connected to it. A third connecting plate 323 is fixedly installed at the end of the second lead screw 321 away from the second rotating rod 322. The third connecting plate 323 is rotatably connected to the second connecting plate 314 via a pin. A fourth connecting plate 324 is rotatably installed at the end of the second rotating rod 322 away from the second lead screw 321. A second through hole 325 is provided at the end of the fourth connecting plate 324 away from the second rotating rod 322, and the second through hole 325 cooperates with the third rotating shaft 214. Anti-slip sleeves 330 are fixedly installed on the outer walls of the first rotating rod 312 and the second rotating rod 322. The lengths of the first telescopic rod 310 and the second telescopic rod 320 can be adjusted by rotating the first rotating rod 312 and the second rotating rod 322, respectively.

[0025] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A ventilation shaft protection device, characterized in that, include: A hanging bracket assembly, the hanging bracket assembly including a first side frame and a second side frame, the top ends of the first side frame and the second side frame being fixedly connected by two first telescopic components; Two protective plates are rotatably connected to the bottom surfaces of the first side frame and the second side frame, respectively. Each protective plate includes a first plate body and a second plate body. The first plate body is slidably mounted on the top of the second plate body. The end of the second plate body away from the first plate body is rotatably connected to the first side frame or the second side frame. The first plate body and the second plate body are driven to be connected by an adjustment component, which is used to drive the first plate body to slide along the extension direction of the second plate body. Four connecting rods, each including a first telescopic rod and a second telescopic rod, one end of the first telescopic rod being rotatably connected to one end of the second telescopic rod, a first rotating shaft being fixedly installed at the top of each of the two side walls of the first side frame, a second rotating shaft being fixedly installed at the top of each of the two side walls of the second side frame, and a third rotating shaft being fixedly installed at the ends of each of the two side walls of the first plate away from the second plate, two of the first rotating shafts being rotatably connected to the ends of the two first telescopic rods away from the second telescopic rod, two of the second rotating shafts being rotatably connected to the ends of the other two first telescopic rods away from the second telescopic rod, and four of the third rotating shafts being rotatably connected to the ends of the four second telescopic rods away from the first telescopic rod.

2. The ventilation shaft protection device as described in claim 1, characterized in that, The first telescopic component includes a first sleeve and a second sleeve. One end of the two first sleeves is vertically and fixedly connected to the top of the first side frame, and one end of the two second sleeves is vertically and fixedly connected to the top of the second side frame. The two second sleeves are respectively inserted into the two first sleeves along the extension direction of the two first sleeves. The second sleeves are provided with a plurality of first fixing holes, and the first sleeves are provided with two second fixing holes. The two second fixing holes are respectively engaged with the plurality of first fixing holes and fixedly connected by two fourth bolt assemblies.

3. The ventilation shaft protection device as described in claim 2, characterized in that, Two first sleeves are respectively fixedly installed on both sides of the top of the surface of the first side frame facing the second side frame, and two second sleeves are respectively fixedly installed on both sides of the top of the surface of the second side frame facing the first side frame.

4. The ventilation shaft protection device as described in claim 1, characterized in that, The first plate includes a first plate surface, two first side plates, and a first crossbeam. Both ends of the first crossbeam are fixedly connected to the ends of the two first side plates away from the second plate. The second plate includes a second plate surface, two second side plates, a second crossbeam, and a third crossbeam. Both ends of the second crossbeam are fixedly connected to the ends of the two second side plates facing the first crossbeam. Both ends of the third crossbeam are fixedly connected to the ends of the two second side plates away from the first crossbeam. The first plate surface and the second plate surface are slidably connected. The two first side plates are slidably connected to the two second side plates. The adjusting assembly includes an adjusting screw, which passes through the middle of the first crossbeam and the second crossbeam. One end of the adjusting screw is rotatably connected to the first crossbeam, and the adjusting screw is threadedly connected to the second crossbeam. The end of the adjusting screw away from the second crossbeam has an external hexagonal portion.

5. The ventilation shaft protection device as described in claim 4, characterized in that, Each of the two first side plates is equipped with a locking bolt assembly at the end facing the bracket assembly. Each of the two second side plates is provided with a sliding groove, which is arranged along the extension direction of the second side plate. The two sliding grooves respectively cooperate with the two locking bolt assemblies.

6. The ventilation shaft protection device as described in claim 4, characterized in that, A limiting plate is fixedly installed at the end of the adjusting screw away from the first crossbeam.

7. The ventilation shaft protection device as described in claim 1, characterized in that, The end of the second plate away from the first plate is rotatably connected to the bottom of the first side frame or the second side frame via several hinges.

8. The ventilation shaft protection device as described in claim 1, characterized in that, The first telescopic rod includes a first lead screw and a first rotating rod. The first lead screw passes through the first rotating rod along its extension direction and is threadedly connected to the first rotating rod. A first connecting plate is fixedly installed at the end of the first lead screw away from the first rotating rod. A first through hole is provided at the end of the first connecting plate away from the first lead screw. The first through hole cooperates with the first rotating shaft and the second rotating shaft. A second connecting plate is rotatably installed at the end of the first rotating rod away from the first lead screw.

9. The ventilation shaft protection device as described in claim 8, characterized in that, The second telescopic rod includes a second lead screw and a second rotating rod. The second lead screw passes through the second rotating rod along its extension direction and is threadedly connected to the second rotating rod. A third connecting plate is fixedly installed at the end of the second lead screw away from the second rotating rod. The third connecting plate is rotatably connected to the second connecting plate via a pin. A fourth connecting plate is rotatably installed at the end of the second rotating rod away from the second lead screw. The end of the fourth connecting plate away from the second rotating rod has a second through hole, which cooperates with the third rotating shaft.

10. The ventilation shaft protection device as described in claim 9, characterized in that, Anti-slip sleeves are fixedly installed on the outer walls of the first and second rotating rods.

Images