Energy-saving retrofit structure of a fan

Abstract

This utility model relates to the field of marine ventilation systems, and more specifically, to an energy-saving retrofit structure for a fan, including a fan body, an air inlet, a branch duct, a duct belt, and a damper, and also includes an automatic rebound device; the air inlet and the branch duct are respectively located on both sides of the fan body, and the damper is closable on the branch duct via the automatic rebound device; the duct belt is fixed to the branch duct via a strapping assembly. The energy-saving retrofit structure for the fan disclosed in this utility model, through the automatic rebound device, allows for automatic closing of the damper, and the disassembly of the duct belt is designed so that the damper can only be closed after the damper is closed, thus reducing resource waste. Furthermore, the strapping assembly reduces the use of a large amount of discarded small iron wire.

Description

Technical Field

[0001] This utility model relates to the field of marine ventilation systems, and more specifically, to an energy-saving retrofit structure for a fan. Background Technology

[0002] Currently, during ship repairs, cabin ventilation requires moving fans and is accomplished through ductwork.

[0003] Before the construction workers go to the work chamber, they first install the air duct onto the nearby fan and tie the air duct to the air duct opening with a small wire. Then they pull the air duct to the work site. After the construction workers finish their work, they remove the air duct from that location.

[0004] However, sometimes some construction workers forget to close the corresponding dampers after removing the wind belts, or some construction workers choose not to close the corresponding dampers after removing the wind belts in order to reduce labor, resulting in wasted wind turbine energy. In addition, a large amount of wire waste is also generated during the ship repair process, causing waste of resources. Therefore, it is necessary to propose an energy-saving retrofit structure for wind turbines to solve the above problems. Utility Model Content

[0005] To overcome at least one of the defects (deficiencies) of the prior art, this utility model provides an energy-saving retrofit structure for a fan.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: an energy-saving retrofit structure for a fan, including a fan body, an air inlet, a branch duct, a duct belt, and a damper, and also including an automatic rebound device;

[0007] The air inlet and the branch air duct are respectively located on both sides of the fan body, and the air damper is installed on the branch air duct through an automatic rebound device.

[0008] The air duct is fixed to the branch air duct by a strap assembly. The automatic rebound device can automatically close the damper. The air duct is designed to be disassembled only after the damper is closed, thus reducing resource waste. The strap assembly also reduces the use of a large amount of waste wire.

[0009] Furthermore, the automatic rebound device includes a handle, a chuck, and a rotary spring;

[0010] The damper is installed on the branch air duct, which can be opened and closed via a damper pivot.

[0011] The handle is mounted on the damper shaft, the chuck is fixed to the branch air duct, the inner ring of the rotary spring is fixed to the damper shaft, and the outer ring of the rotary spring is fixed to the chuck. By fixing the inner ring of the rotary spring to the damper shaft and the outer ring of the rotary spring to the chuck, the damper can be automatically closed.

[0012] Furthermore, the chuck is provided with a limiting rod for limiting the damper when it is closed and a limiting slot for limiting the damper when it is open, and the handle is provided with a pin assembly.

[0013] The limiting rod on the chuck abuts against the handle when the damper is closed, and connects to the limiting slot on the chuck when the damper is open. The setting of the limiting rod, limiting slot and pin assembly makes it easy to fix the opening and closing of the damper, which is simple and convenient.

[0014] Furthermore, the pin assembly includes a pin cover, a pin cylinder, and a pin rod for connecting with the limiting slot;

[0015] The pin rod is telescopically mounted on the pin cylinder, and the pin cover is detachably mounted on the pin cylinder to fix the pin rod. Since the pin rod is telescopically mounted on the pin cylinder, when the damper is closed, the limiting rod on the chuck abuts against the handle. When the damper is opened, the limiting rod on the chuck can be easily connected to the limiting slot on the chuck.

[0016] Furthermore, the binding strap assembly includes binding straps and a tightening device connected to the binding straps. The air duct is fixed to the outer wall of the branch air duct by the binding straps. The binding straps and tightening device make it easy to tighten the air duct and avoid the generation of a large amount of wire waste.

[0017] Furthermore, it also includes a fixed end bracket, a fixed end pressure block, a fixed end clamp, a clamping bolt, a screw bolt, and a tensioner bracket for placing the tensioner;

[0018] The fixed end bracket and the tightener bracket are respectively installed on the outer wall of the diversion branch air duct;

[0019] The fixed end bracket is provided with a threaded hole. The spur bolt passes through the threaded hole of the fixed end bracket and connects to the fixed end pressure block, so that the fixed end pressure block is pressed onto the air belt.

[0020] The fixed end clamp is detachably mounted on the side of the fixed end pressure block via clamping bolts. The fixed end pressure block and the screw bolts can be used to tighten the binding strap, thus facilitating the fixation of the air belt. The fixed end clamp is connected to the side of the fixed end pressure block via clamping bolts, thereby widening the pressing surface with the binding strap and strengthening the pressing of the binding strap. The tensioner bracket facilitates the placement of the tensioner.

[0021] Furthermore, the fan body is equipped with an air distribution hood, and the branch air duct is connected to the fan body through the air distribution hood. By setting the air distribution hood, the air volume can be evenly distributed into the branch air duct.

[0022] Furthermore, there is at least one diversion branch duct. In practical applications, the number of diversion branch ducts can be set as needed, which is something that those skilled in the art can easily conceive of.

[0023] Furthermore, the air distribution hood is equipped with a wind pressure switch. When the air damper is completely closed, causing the air pressure on the outlet side to rise to a certain value, the wind pressure switch can disconnect the power supply of the fan in time.

[0024] Compared with the prior art, the beneficial effects of this utility model's technical solution are:

[0025] The energy-saving retrofit structure for the fan disclosed in this utility model can automatically close the damper by setting an automatic rebound device, and the disassembly of the air belt can only be carried out after the damper is closed, thus reducing the waste of resources. Furthermore, the use of a large amount of waste small iron wire can be reduced by setting a binding strap component. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the fan body in this utility model.

[0027] Figure 2 This is a structural diagram of the damper in the closed state of this utility model.

[0028] Figure 3 This is a structural diagram of the windproof door in the open state of this utility model.

[0029] Figure 4 This is a schematic diagram of the assembled pin assembly in this utility model.

[0030] Figure 5 This is a schematic diagram of the component structure of the pin assembly in this utility model.

[0031] Figure 6 This is a schematic diagram of the structure of the fixed end bracket, fixed end pressure block, fixed end clamping plate, clamping bolt, and spur bolt after assembly in this utility model.

[0032] Figure 7 This is a schematic diagram of the component structure of the fixed end bracket, fixed end pressure block, fixed end clamping plate, clamping bolt, and spur bolt in this utility model.

[0033] Figure 8 This is a schematic diagram of the structure of the ductwork of the branch road with the addition of a binding strap assembly.

[0034] In the diagram, 1 is the fan body, 2 is the air inlet, 3 is the branch air duct, 4 is the air belt, 5 is the damper, 6 is the automatic rebound device, 7 is the binding strap assembly, 8 is the handle, 9 is the chuck, 10 is the rotary spring, 11 is the damper shaft, 12 is the limit rod, 13 is the limit slot, 14 is the pin assembly, 15 is the pin cover, 16 is the pin cylinder, 17 is the pin rod, 18 is the binding strap, 19 is the tensioner, 20 is the fixed end bracket, 21 is the fixed end pressure block, 22 is the fixed end clamp, 23 is the clamping bolt, 24 is the screw bolt, 25 is the tensioner bracket, and 26 is the air distribution cover. Detailed Implementation

[0035] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can be described as the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0037] like Figure 1-8 As shown, an energy-saving retrofit structure for a fan includes a fan body 1, an air inlet 2, a branch duct 3, a wind belt 4, and a damper 5, as well as an automatic rebound device 6. The air inlet and the branch duct are respectively located on both sides of the fan body. The damper is installed on the branch duct and can be opened and closed by the automatic rebound device. The wind belt is fixed to the branch duct by a binding strap assembly 7. The automatic rebound device enables the damper to close automatically, and the disassembly of the wind belt is designed so that the damper can only be removed after the damper is closed, thus reducing resource waste. The binding strap assembly also reduces the use of a large amount of waste small iron wire.

[0038] The automatic rebound device includes a handle 8, a chuck 9, and a rotary spring 10. The damper is configurably mounted on the branch air duct via a damper shaft 11. The handle is mounted on the damper shaft, the chuck is fixed to the branch air duct, the inner ring of the rotary spring is fixed to the damper shaft, and the outer ring of the rotary spring is fixed to the chuck. By fixing the inner ring of the rotary spring to the damper shaft and the outer ring to the chuck, automatic closing of the damper is facilitated. The chuck is equipped with a limiting rod 12 for limiting the damper when closing and a limiting slot 13 for limiting the damper when opening. The handle is equipped with a pin assembly 14. The limiting rod on the chuck... When the door is closed, it abuts against the handle; when the door is open, it connects with the limiting slot on the chuck. The chuck assembly, consisting of a limiting rod, limiting slot, and pin assembly, facilitates easy and convenient opening and closing of the door. The pin assembly includes a pin cover 15, a pin cylinder 16, and a pin rod 17 for connecting with the limiting slot. The pin rod is retractably mounted on the pin cylinder, and the pin cover is detachably mounted on the pin cylinder to secure the pin rod. Because the pin rod is retractably mounted on the pin cylinder, when the door is closed, the limiting rod on the chuck abuts against the handle; when the door is open, the limiting rod on the chuck easily connects with the limiting slot on the chuck.

[0039] In this utility model, the binding strap assembly includes a binding strap 18 and a tightening device 19 connected to the binding strap. The air duct is fixed to the outer wall of the branch duct via the binding strap. The binding strap and tightening device facilitate the tightening of the air duct, preventing the generation of large amounts of wire waste. In addition, it includes a fixed end bracket 20, a fixed end pressure block 21, a fixed end clamping piece 22, a clamping bolt 23, a spur bolt 24, and a tightening device bracket 25 for placing the tightening device. The fixed end bracket and the tightening device bracket are respectively installed on the outer wall of the branch duct. The bracket has threaded holes. After the screw passes through the threaded holes of the fixed end bracket, it connects to the fixed end pressure block and presses the fixed end pressure block onto the air belt. The fixed end clamp is detachably set on the side of the fixed end pressure block by clamping bolts. The fixed end pressure block and screws can be used to tighten the binding strap, which facilitates the fixation of the air belt. The fixed end clamp is connected to the side of the fixed end pressure block by clamping bolts, which widens the pressing surface with the binding strap and strengthens the pressing of the binding strap. The tensioner bracket is for placing the tensioner.

[0040] In this utility model, the fan body is provided with a wind distribution hood 26, and the branch air ducts are connected to the fan body through the wind distribution hood. By setting the wind distribution hood, the air volume can be evenly distributed to the branch air ducts. There is at least one branch air duct. In practical applications, the number of branch air ducts can be set according to needs, which is easy for those skilled in the art to think of. In practical applications, a wind pressure switch can also be set on the wind distribution hood. When the air damper is completely closed and the air pressure on the outlet side rises to a certain value, the wind pressure switch can disconnect the power supply of the fan in time.

[0041] The positional relationships described in the figures are for illustrative purposes only and should not be construed as limiting this patent. Clearly, the above embodiments of this utility model are merely examples to clearly illustrate the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. An energy-saving retrofit structure for a fan, comprising a fan body, an air inlet, a branch duct, a duct belt, and a damper, characterized in that: It also includes an automatic rebound device; The air inlet and the branch air duct are respectively located on both sides of the fan body, and the air damper is installed on the branch air duct through an automatic rebound device. The air duct is fixed to the branch air duct by a strap assembly.

2. The energy saving retrofit for a fan as claimed in claim 1 wherein: The automatic rebound device includes a handle, a chuck, and a rotary spring; The damper is installed on the branch air duct, which can be opened and closed via a damper pivot. The handle is mounted on the damper shaft, the chuck is fixed to the branch air duct, the inner ring of the rotary spring is fixed to the damper shaft, and the outer ring of the rotary spring is fixed to the chuck.

3. The energy saving retrofit for a fan as claimed in claim 2 wherein: The chuck is provided with a limiting rod for limiting the door when it is closed and a limiting slot for limiting the door when it is opened; the handle is provided with a pin assembly. The limiting rod on the chuck abuts against the handle when the damper is closed, and connects with the limiting slot on the chuck when the damper is opened.

4. The energy saving retrofit for a fan as claimed in claim 3 wherein: The pin assembly includes a pin cover, a pin cylinder, and a pin rod for connecting to the limiting slot; The pin rod is telescopically mounted on the pin cylinder, and the pin cover is detachably mounted on the pin cylinder to fix the pin rod.

5. The energy saving retrofitting arrangement for a fan as claimed in claim 1 wherein: The binding strap assembly includes binding straps and a tightener connected to the binding straps, and the air duct is fixed to the outer wall of the branch air duct by the binding straps.

6. The energy saving retrofit for a fan as claimed in claim 5 wherein: It also includes a fixed end bracket, a fixed end pressure block, a fixed end clamp, a clamping bolt, a spur bolt, and a tensioner bracket for placing the tensioner; The fixed end bracket and the tightener bracket are respectively installed on the outer wall of the diversion branch air duct; The fixed end bracket is provided with a threaded hole. The spur bolt passes through the threaded hole of the fixed end bracket and connects to the fixed end pressure block, so that the fixed end pressure block is pressed onto the air belt. The fixed end clamp is detachably mounted on the side of the fixed end pressure block by means of clamping bolts.

7. The energy saving retrofitting arrangement for a fan as claimed in claim 1 wherein: The fan body is equipped with a wind distribution hood, and the branch air duct is connected to the fan body through the wind distribution hood.

8. The energy saving retrofitting arrangement for a fan as claimed in claim 1 wherein: The minimum number of branch ventilation ducts is one.

9. The energy saving retrofitting arrangement for a fan as claimed in claim 7 wherein: The air distribution cover is equipped with a wind pressure switch.

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