Rotation ventilation cap for ventilation of elevator shaft

Abstract

The utility model provides an elevator shaft ventilation autorotation ventilation cap which comprises an elevator shaft, a fixing seat is installed on the top of the elevator shaft, an air inlet barrel penetrates through the top of the fixing seat, and the middle of the outer barrel face of the air inlet barrel is in a convex ring shape. Compared with the prior art, the ventilation device has the advantages that airflow passes through the surface of the ventilation cap and pushes the ventilation cap to rotate, the ventilation cap can rotate on the fixing base through the air inlet barrel, and meanwhile the airflow can be conveyed into the ventilation cap through the air inlet and conveyed into the air inlet barrel through the ventilation cap; air flow is conveyed into the elevator shaft through the air inlet barrel, meanwhile, the ventilation cap can drive the connecting plate and the filter screen in the air blowing assembly to rotate, the connecting plate drives the fan blades to rotate through the connecting shaft, and when the fan blades rotate, the air flow can be blown into the elevator shaft below, so that the air flow conveying efficiency can be improved; and then the ventilation efficiency in the elevator shaft can be effectively improved.

Description

Technical Field

[0001] The utility model relates to a self-rotating ventilation cap for elevator shaft ventilation, belonging to the field of elevator ventilation equipment. Background Technique

[0002] The ventilation design of the elevator shaft is an important link to ensure the safe operation and maintenance of the elevator. Good ventilation can prevent potential problems in the shaft caused by increased temperature, humidity or other factors. The ventilation cap of the elevator shaft is a ventilation device used at the top of the elevator shaft, aiming to improve the air circulation and ventilation effect in the shaft. The ventilation cap of the elevator shaft is usually designed to be circular, and inclined and curved air inlets are arranged on the outside. This shape can effectively guide the air flow and reduce the wind resistance, and is commonly used in the elevator shafts of high-rise buildings.

[0003] When the wind blows, the wind force will push the air inlet of the ventilation cap and drive the ventilation cap to rotate. The rotating ventilation cap will drive the air inlet to draw the air flow into the elevator shaft. Since the ventilation cap is installed at the top of the elevator shaft, the air flow velocity near the air inlet is relatively large, and the air flow velocity far from the air inlet is relatively small. Moreover, the elevator shaft is relatively deep, resulting in low air flow transportation efficiency of the ventilation cap and reduced ventilation efficiency inside the elevator shaft.

[0004] In summary, the utility model provides a self-rotating ventilation cap for elevator shaft ventilation to solve the above problems. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a self-rotating ventilation cap for elevator shaft ventilation to solve the problem of reduced ventilation efficiency inside the elevator shaft caused by low air flow transportation efficiency of the ventilation cap as mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model is realized through the following technical solutions: A self-rotating ventilation cap for elevator shaft ventilation, including an elevator shaft, a fixed seat is installed at the top of the elevator shaft, an air inlet cylinder penetrates through the top of the fixed seat, the middle part of the outer cylinder surface of the air inlet cylinder is in a convex ring shape, a ventilation cap is sleeved above the air inlet cylinder through the convex ring, a plurality of hook-shaped air inlets are evenly arranged on the outer surface of the ventilation cap, installation bolts penetrate through the four sides of the top of the fixed seat, the bottom of the ventilation cap is in a straight cylinder shape, and fastening bolts penetrate through the four sides of the outer cylinder surface, and a blast component is fixedly installed at the top of the inner cylinder surface of the air inlet cylinder.

[0007] Furthermore, the air inlet cylinder is rotationally connected with the fixed seat through a bearing, and the top end of the air inlet cylinder is communicated with the inside of the ventilation cap.

[0008] Further, the bottom end of each mounting bolt extends to the inside of the top end of the elevator shaft, and the fixing base is fixedly connected to the top end of the elevator shaft through four mounting bolts.

[0009] Further, one end of each fastening bolt penetrates into the inside of the air inlet barrel body, and the ventilation cap is fixedly connected to the air inlet barrel through four fastening bolts.

[0010] Further, the bottom end of the air inlet barrel is communicated with the inside of the elevator shaft, and threaded holes for mating with the fastening bolts in threaded connection are provided on both the ventilation cap and the air inlet barrel.

[0011] Further, the air blowing assembly includes a connecting plate, the connecting plate is fixedly connected between the tops of both sides of the inner wall of the air inlet barrel, a connecting shaft is fixedly installed at the bottom of the connecting plate, a fan blade is fixedly installed at the bottom end of the connecting shaft, and filter nets are embedded between both sides of the connecting plate and both sides of the inner wall of the air inlet barrel.

[0012] Advantages of the present utility model:

[0013] When air flow passes through the surface of the ventilation cap and pushes the ventilation cap to rotate, the ventilation cap can rotate on the fixing base through the air inlet barrel. At the same time, the air flow can be transported to the inside of the ventilation cap through the air inlet, and then transported to the inside of the air inlet barrel through the ventilation cap. The air flow is transported to the inside of the elevator shaft through the air inlet barrel. At the same time, the ventilation cap can drive the connecting plate and the filter net inside the air blowing assembly to rotate. The connecting plate drives the fan blade to rotate through the connecting shaft. When the fan blade rotates, it can blow air flow towards the inside of the lower elevator shaft, thereby accelerating the air flow transportation efficiency, and then effectively improving the ventilation efficiency inside the elevator shaft.

[0014] During the process of air flow transportation, filtering can be carried out through two filter nets to avoid garbage flying into the inside of the elevator shaft and causing the phenomenon of garbage accumulation inside the elevator shaft, effectively prolonging the internal cleaning cycle of the elevator shaft in the later stage.

[0015] When it is necessary to clean the garbage inside the ventilation cap, the fastening bolts can be directly rotated and disassembled to release the fixation of the ventilation cap and the air inlet barrel. Move the ventilation cap upward to open the top end of the air inlet barrel, and then the garbage accumulated on the top of the filter net can be cleaned. The operation is convenient, improving the convenience of the internal cleaning operation of the self-rotating ventilation cap. Description of the Drawings

[0016] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the present utility model will become more obvious:

[0017] Figure 1 It is a three-dimensional view of a self-rotating ventilation cap for elevator shaft ventilation of the present utility model;

[0018] Figure 2 The front view of a self-rotating ventilation cap for elevator shaft ventilation according to the present utility model;

[0019] Figure 3 The main sectional view of a self-rotating ventilation cap for elevator shaft ventilation according to the present utility model;

[0020] Figure 4 is Figure 3 The bottom view of the shown air-blowing component.

[0021] In the figure: 1, elevator shaft; 2, fixed seat; 3, air inlet cylinder; 4, ventilation cap; 5, air inlet; 6, fastening bolt; 7, installation bolt; 8, air-blowing component; 81, connecting plate; 82, filter screen; 83, connecting shaft; 84, fan blade. Specific embodiments

[0022] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please refer to Figures 1-4 , the present utility model provides a technical solution: a self-rotating ventilation cap for elevator shaft ventilation, including an elevator shaft 1, a fixed seat 2 is installed at the top of the elevator shaft 1, an air inlet cylinder 3 penetrates through the top of the fixed seat 2, the middle of the outer cylinder surface of the air inlet cylinder 3 is in a convex ring shape, a ventilation cap 4 is sleeved above the air inlet cylinder 3 through the convex ring, the ventilation cap 4 is made of stainless steel material and has the performance of rust prevention and corrosion resistance, a plurality of hook-shaped air inlets 5 are evenly arranged on the outer surface of the ventilation cap 4, and the air inlets 5 are inclined, the ventilation cap 4 is overall in a flat and round shape, this shape can effectively guide the air flow and reduce the wind resistance. When there is an air flow blowing over the surface of the ventilation cap 4, the wind force can push the hook-shaped air inlets 5 and guide the ventilation cap 4 to rotate. At the same time, the air flow can be transported to the inside of the ventilation cap 4 through each air inlet 5. Installation bolts 7 penetrate through the four corners of the top of the fixed seat 2, the bottom of the ventilation cap 4 is in a straight cylinder shape, and fastening bolts 6 penetrate through the four corners of the outer cylinder surface. The top of the inner cylinder surface of the air inlet cylinder 3 is fixedly installed with an air-blowing component 8, the air inlet cylinder 3 is rotationally connected to the fixed seat 2 through a bearing, the top end of the air inlet cylinder 3 is communicated with the inside of the ventilation cap 4, the bottom end of each installation bolt 7 extends to the inside of the top end of the elevator shaft 1, the fixed seat 2 is fixedly connected to the top end of the elevator shaft 1 through four installation bolts 7, one end of each fastening bolt 6 penetrates through the inside of the cylinder body of the air inlet cylinder 3, the ventilation cap 4 is fixedly connected to the air inlet cylinder 3 through four fastening bolts 6, the bottom end of the air inlet cylinder 3 is communicated with the inside of the elevator shaft 1, and threaded holes for mating with the threaded connection of the fastening bolts 6 are opened on both the ventilation cap 4 and the air inlet cylinder 3. By reversing and removing the fastening bolts 6, the fixed connection between the ventilation cap 4 and the fastening bolts 6 can be released, and then the top end of the air inlet cylinder 3 can be opened.

[0024] Please refer to Figures 2-4, the air blowing assembly 8 includes a connecting plate 81 which is fixedly connected between the tops of both sides of the inner wall of the air inlet cylinder 3. A connecting shaft 83 is fixedly installed at the bottom of the connecting plate 81, and a fan blade 84 is fixedly installed at the bottom end of the connecting shaft 83. Filter nets 82 are embedded between both sides of the connecting plate 81 and both sides of the inner wall of the air inlet cylinder 3. Through the filter nets 82, sundries such as lint in the air flow can be filtered to avoid the phenomenon of garbage accumulation inside the elevator shaft 1. The top of the filter net 82 is flush with the top end of the air inlet cylinder 3. When the air blowing assembly 8 rotates integrally with the ventilation cap 4, the fan blade 84 can be driven to rotate. When the fan blade 84 rotates, it can blow the air flow towards the inside of the lower elevator shaft 1.

[0025] Specific implementation method: When the air flow passes through the surface of the ventilation cap 4, it can push the hook-shaped air inlet 5 with inclined protrusions and drive the ventilation cap 4 to rotate. The ventilation cap 4 can rotate around the fixed seat 2 through the air inlet cylinder 3. At the same time, the air flow can be transported into the ventilation cap 4 through the air inlet 5 and then transported to the inside of the air inlet cylinder 3 through the ventilation cap 4. The air flow is transported to the inside of the elevator shaft 1 through the air inlet cylinder 3. At the same time, the ventilation cap 4 can drive the connecting plate 81 and the filter net 82 inside the air blowing assembly 8 to rotate. The connecting plate 81 drives the fan blade 84 to rotate through the connecting shaft 83. When the fan blade 84 rotates, it can blow the air flow towards the inside of the lower elevator shaft 1, thereby accelerating the air flow transportation efficiency and effectively improving the ventilation efficiency inside the elevator shaft 1.

[0026] During the process of air flow transportation, the two filter nets 82 can be used for filtering to avoid garbage flying into the inside of the elevator shaft 1 and generating the phenomenon of garbage accumulation inside the elevator shaft 1, effectively extending the internal cleaning cycle of the elevator shaft 1 in the later stage.

[0027] When it is necessary to clean the garbage inside the ventilation cap 4, the fastening bolt 6 can be directly rotated and disassembled to release the fixation between the ventilation cap 4 and the air inlet cylinder 3. Move the ventilation cap 4 upward to open the top end of the air inlet cylinder 3, and then the garbage accumulated on the top of the filter net 82 can be cleaned. The operation is convenient, improving the convenience of the internal cleaning operation of the self-rotating ventilation cap 4.

[0028] In addition, it should be understood that although this specification is described according to the implementation methods, not each implementation method only contains an independent technical solution. This narrative method of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A self-rotating ventilation cap for elevator shaft ventilation, comprising an elevator shaft (1), characterized in that: A fixing base (2) is installed at the top of the elevator hoistway (1). An air inlet cylinder (3) penetrates through the top of the fixing base (2). The middle part of the outer cylinder surface of the air inlet cylinder (3) is in a convex ring shape. A ventilation cap (4) is sleeved on the air inlet cylinder (3) through the convex ring above. A plurality of hook-shaped air inlets (5) are evenly arranged on the outer surface of the ventilation cap (4). Installation bolts (7) penetrate through the four circumferences of the top of the fixing base (2). The bottom of the ventilation cap (4) is in a straight cylinder shape, and fastening bolts (6) penetrate through the four circumferences of the outer cylinder surface. A blower assembly (8) is fixedly installed at the top of the inner cylinder surface of the air inlet cylinder (3).

2. The self-rotating ventilation cap for elevator shaft ventilation according to claim 1, wherein: The air inlet cylinder (3) is rotationally connected to the fixing base (2) through a bearing, and the top end of the air inlet cylinder (3) is communicated with the inside of the ventilation cap (4).

3. The self-rotating ventilation cap for elevator shaft ventilation according to claim 1, characterized in that: The bottom end of each installation bolt (7) extends to the inside of the top end of the elevator hoistway (1), and the fixing base (2) is fixedly connected to the top end of the elevator hoistway (1) through four installation bolts (7).

4. The self-rotating ventilation cap for elevator shaft ventilation according to claim 1, wherein: One end of each fastening bolt (6) penetrates through the inside of the cylinder body of the air inlet cylinder (3), and the ventilation cap (4) is fixedly connected to the air inlet cylinder (3) through four fastening bolts (6).

5. The self-rotating ventilation cap for elevator shaft ventilation according to claim 1, wherein: The bottom end of the air inlet cylinder (3) is communicated with the inside of the elevator hoistway (1), and threaded holes for threaded connection with the fastening bolts (6) are provided on both the ventilation cap (4) and the air inlet cylinder (3).

6. The self-rotating ventilation cap for elevator shaft ventilation according to claim 1, wherein: The blower assembly (8) includes a connecting plate (81). The connecting plate (81) is fixedly connected between the tops of the two sides of the inner wall of the air inlet cylinder (3). A connecting shaft (83) is fixedly installed at the bottom of the connecting plate (81). A fan blade (84) is fixedly installed at the bottom end of the connecting shaft (83). Filter nets (82) are embedded between the two sides of the connecting plate (81) and the two sides of the inner wall of the air inlet cylinder (3).

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