Arch shed second layer insulation device
By introducing a two-way self-locking transmission mechanism into the blower of the greenhouse arch shed, the problem of unstable opening and closing of the air vent in existing equipment is solved, and the insulation effect of the greenhouse arch shed is significantly improved.
Patent Information
- Application Number
- CN202421493728.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The blower in the existing greenhouse arch shed equipment lacks the self-locking function, which leads to unstable opening and closing state of the air arch shed, which in turn affects the insulation effect of the greenhouse arch shed.
A blower including a two-way self-locking transmission mechanism is designed, and the stable opening and closing of the blower window is achieved through the combination of self-locking gear, fixing rod, self-locking plate and spring.
Through the design of the two-way self-locking transmission mechanism, the opening and closing state of the air vent is ensured to remain stable, and the insulation effect of the greenhouse arch shed is improved.
Smart Images
Figure CN222707150U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of greenhouse arch shed equipment, in particular to a second-layer heat preservation device for an arch shed. Background Art
[0002] At present, greenhouse arch sheds have become more and more common. In order to ensure the normal growth of plants in the greenhouse arch shed, it is necessary to control the temperature in the greenhouse arch shed according to actual needs. The greenhouse arch sheds in the prior art are usually provided with a ventilator, and the temperature in the greenhouse arch shed is controlled by opening and closing the vent window through the ventilator. The ventilator is connected to the greenhouse film at the vent window of the greenhouse arch shed through a pulling rope. By starting the ventilator, the pulling rope pulls the greenhouse film on the greenhouse arch shed. When the temperature is high, the vent window is opened by pulling the vent film; when the temperature is low, the vent window is closed by pulling the vent film. However, most of the ventilators provided in the greenhouse arch sheds in the prior art do not have a self-locking function, resulting in unstable opening and closing of the vent window, and poor insulation effect of the greenhouse arch shed. Utility Model Content
[0003] The utility model aims to provide a second-layer heat preservation device for an arch shed to overcome the problems existing in the existing equipment.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a two-layer insulation device of an arch shed, comprising an arch shed frame and a ventilator arranged on the inner side of the arch shed frame, the ventilator comprising a ventilator housing and a drive shaft, one end of the drive shaft is rotatably connected to the ventilator housing, and the other end of the drive shaft is connected to a rotating handle, the ventilator also includes a two-way self-locking transmission mechanism, the two-way self-locking transmission mechanism includes a self-locking gear sleeved on the drive shaft, a fixed rod connected and fixed to the ventilator housing, and a self-locking plate one end of which is rotatably connected to the fixed rod, an unlocking groove and a plurality of clamping grooves are provided on the outer periphery of the self-locking gear, the unlocking groove and each clamping groove are arranged between two adjacent tooth portions, the other end of the self-locking plate is abutted against the unlocking groove or the clamping groove, and the self-locking plate locks the self-locking gear by abutting against the clamping groove.
[0005] On the basis of the above technical solution, the utility model can also be improved as follows:
[0006] Furthermore, a transmission sprocket is provided in the blower housing, a chain is wound around the transmission sprocket, and an axial hole is provided in the blower housing. One end of the drive shaft passes through the axial hole of the blower housing and is connected to the center of the transmission sprocket.
[0007] Furthermore, the drive shaft is a spline shaft, and the self-locking gear is provided with a center hole. The center hole of the self-locking gear is a spline hole that matches the drive shaft. The drive shaft passes through the center hole of the self-locking gear, and the unlocking groove and the locking groove are both recessed toward the center hole. The depth of the unlocking groove is greater than the depth of the locking groove.
[0008] Furthermore, one end of the fixing rod is connected and fixed to the fan housing, one end of the self-locking plate is connected to a connecting tube by welding, and the connecting tube is sleeved on the other end of the fixing rod.
[0009] Furthermore, a spring is provided between the fixing rod and the self-locking plate, one end of the spring is connected to the fixing rod by winding, and the other end of the spring is connected to the self-locking plate by winding.
[0010] Furthermore, the fixing rod is a screw rod, two nuts are screwed on the fixing rod, and the connecting tube clamp is arranged between the two nuts.
[0011] Furthermore, the arch shed frame includes steel wires, multiple columns, multiple arch frames and a crossbeam. The columns and arch frames are arranged along the longitudinal direction of the arch shed frame. The arch frames correspond to the columns one by one and are tied to the top of the columns by ropes. The crossbeam is connected to each arch frame by ropes, and extends along the longitudinal direction of the arch shed frame.
[0012] Furthermore, the arch frame is covered with a thermal insulation plastic film, which is provided with a vent window, and a shed film is arranged at the vent window. Each arch frame is provided with a pulley at the corresponding position below the shed film, and a bracket is fixed on each column, and a guide hook is provided on the bracket. The two ends of the chain of the ventilator are connected to the two ends of the pulling rope correspondingly, and the pulling rope is connected to the shed film through the bracket, the cross beam and the arch frame in sequence. The pulling rope is laid on the guide hook, bypasses the pulley on the arch frame and rests on the cross beam.
[0013] The beneficial effects of the utility model are as follows: the above-mentioned arch shed second-layer insulation device drives the drive shaft and the self-locking gear to rotate a certain angle by shaking the rotating handle of the vent fan clockwise or counterclockwise, thereby opening or closing the vent window; the self-locking plate locks the self-locking gear by abutting against the card slot, preventing the drive shaft from rotating in the counterclockwise or clockwise direction, and further preventing the drive shaft from deviating from the original rotation position, thereby keeping the opening and closing states of the vent window stable and achieving a better insulation effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0015] Figure 1 It is a structural schematic diagram of the arch shed two-layer heat preservation device provided by the preferred embodiment of the utility model;
[0016] Figure 2 yes Figure 1 Schematic diagram of the longitudinal distribution of the arch shed skeleton;
[0017] Figure 3 yes Figure 2 The structural diagram of the ventilator in FIG.
[0018] Figure 4 yes Figure 3A partial cross-sectional view of the ventilator in the figure along the lateral direction;
[0019] Figure 5 yes Figure 3 A schematic diagram of the structure of the self-locking gear in FIG.
[0020] Figure 6 yes Figure 3 Schematic diagram of the blower rotating clockwise with self-locking gear;
[0021] Figure 7 yes Figure 3 Schematic diagram of the fan rotating counterclockwise with the self-locking gear;
[0022] In the figure: 11, column; 12, arch frame; 121, pulley; 13, crossbeam; 14, shed film; 15, bracket; 16, pulling rope; 21, ventilator housing; 211, transmission sprocket; 212, chain; 22, driving shaft; 23, self-locking gear; 231, center hole; 232, unlocking groove; 233, slot; 24, fixing rod; 241, nut; 25, self-locking plate; 251, connecting tube; 26, spring; 27, turning handle. DETAILED DESCRIPTION
[0023] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.
[0024] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0026] like Figures 1 to 7 As shown, a preferred embodiment of the utility model provides an arch shed two-layer insulation device, including an arch shed frame and a ventilator arranged on the inner side of the arch shed frame.
[0027] The arch frame includes steel wires, a plurality of columns 11, a plurality of arches 12 and a cross beam 13. The columns 11 and the arches 12 are arranged in the longitudinal direction of the arch frame. The arches 12 correspond to the columns 11 one by one and are tied to the top of the columns 11 by ropes. The cross beam 13 is tied and connected to each arch 12 by ropes, and the cross beam 13 extends in the longitudinal direction of the arch frame. In this embodiment, an arched steel wire structure is used to reinforce the arch frame. The arch 12 is made of bamboo poles bent into an arch shape, and the cross beam 13 is made of steel pipes. By using the steel pipe as the cross beam 13 at the top of the structure in the shed, the curvature of the arch frame is increased, and the steel pipe has a compressive effect. A layer of thermal insulation plastic film is covered on the top and inside of the arch frame to form an upper and lower thermal insulation structure. The upper and lower thermal insulation structure can achieve better thermal insulation effect when the temperature is low in winter. The outer thermal insulation plastic film is provided with a vent window, and a shed film 14 is provided at the vent window. Each arch frame 12 is provided with a pulley 121 at the position below the corresponding shed film 14, and a bracket 15 is fixed on each column 11.
[0028] The ventilator includes a ventilator housing 21, a drive shaft 22 and a bidirectional self-locking transmission mechanism, the bidirectional self-locking transmission mechanism includes a self-locking gear 23 sleeved on the drive shaft 22, a fixed rod 24 connected and fixed to the ventilator housing 21, and a self-locking plate 25 rotatably connected to the fixed rod 24 at one end, an unlocking groove 232 and a plurality of clamping grooves 233 are provided on the outer periphery of the self-locking gear 23, the unlocking groove 232 and each clamping groove 233 are provided between two adjacent tooth portions, the other end of the self-locking plate 25 is abutted against the unlocking groove 232 or the clamping groove 233, one end of the drive shaft 22 is rotatably connected to the ventilator housing 21, and the other end of the drive shaft 22 is connected to the rotating handle 27. The bidirectional self-locking means that the self-locking plate 25 locks the self-locking gear 23 by abutting against the clamping groove 233 to prevent the drive shaft 22 from rotating in the counterclockwise or clockwise direction.
[0029] A transmission sprocket 211 is provided in the blower housing 21, a chain 212 is wound around the transmission sprocket 211, and an axial hole is provided in the blower housing 21. One end of the drive shaft 22 passes through the axial hole of the blower housing 21 and is connected to the center of the transmission sprocket 211. The drive shaft 22 is a spline shaft, and the self-locking gear 23 is provided with a center hole 231. The center hole 231 of the self-locking gear 23 is a spline hole that matches the drive shaft 22. The drive shaft 22 passes through the center hole 231 of the self-locking gear 23, so that the self-locking gear 23 is sleeved on the drive shaft 22. The spline shaft and the spline hole match, and the structure is more stable, preventing the self-locking gear 23 and the drive shaft 22 from circumferential movement; the self-locking gear 23 can be fixed to the drive shaft 22 by a retaining ring to prevent the self-locking gear 23 and the drive shaft 22 from axial movement. The unlocking groove 232 and the locking groove 233 are both recessed toward the central hole 231 , and the recessed depth of the unlocking groove 232 is greater than the recessed depth of the locking groove 233 .
[0030] One end of the fixed rod 24 is connected and fixed to the ventilator housing 21, and one end of the self-locking plate 25 is connected to a connecting tube 251 by welding. The connecting tube 251 is sleeved on the other end of the fixed rod 24, so that the self-locking plate 25 is rotatably connected to the fixed rod 24. A spring 26 is provided between the fixed rod 24 and the self-locking plate 25, one end of the spring 26 is connected to the fixed rod 24 by winding, and the other end of the spring 26 is connected to the self-locking plate 25 by winding. When the self-locking plate 25 moves to the left or right, the spring 26 applies an elastic force to the self-locking plate 25, and the direction of the elastic force is opposite to the moving direction of the self-locking plate 25. Preferably, the fixed rod 24 is a screw rod, and two nuts 241 are screwed on the fixed rod 24, and the connecting tube 251 is sandwiched between the two nuts 241 to limit the connecting tube 251 along the axial direction of the fixed rod 24.
[0031] When the utility model is used, the vent housing 21 is installed on a column inside the arch frame by screws, and the two ends of the chain 212 wound on the transmission sprocket 211 are connected to the two ends of the pull rope 16. The pull rope 16 passes through the bracket 15, the crossbeam 13 and the arch frame 12 in sequence and is connected to the shed film 14. The bracket 15 is provided with a guide hook, and the pull rope 16 is laid on the guide hook, bypasses the pulley 121 on the arch frame 12 and rests on the crossbeam 13. The extension direction of the pull rope 16 when moving is guided by setting the guide hook. The driving shaft 22 is driven to rotate by shaking the rotating handle 27, thereby driving the transmission sprocket 211 and the chain 212 in the vent housing 21 to move, and the pull rope 16 is driven to move by the chain 212, so that the shed film 14 moves back and forth along the arch frame to open or close the vent window.
[0032] like Figure 3As shown, the above-mentioned ventilator is in an unlocked state, at which time the other end of the self-locking plate 25 is against the unlocking groove 232 of the self-locking gear 23; since the depth of the unlocking groove 232 is greater than the depth of the recessed groove 233, the handle 27 can be turned clockwise or counterclockwise to drive the driving shaft 22 and the self-locking gear 23 to rotate, and the tooth portion of the self-locking gear 23 can push the self-locking plate 25 to swing to the left or right, so that the other end of the self-locking plate 25 is disengaged from the unlocking groove 232 of the self-locking gear 23.
[0033] like Figure 6 As shown, when the clockwise shaking of the rotating handle 27 drives the driving shaft 22 and the self-locking gear 23 to rotate clockwise by a certain angle, the transmission sprocket 211 and the chain 212 in the vent housing 21 rotate a certain angle with the driving shaft 22, and the pulling rope 16 is driven by the chain 212 to move, so that the greenhouse film 14 moves to open the vent window. At this time, the tooth portion of the self-locking gear 23 pushes the other end of the self-locking plate 25 to disengage from the unlocking groove 232 and swing to the right, so that the other end of the self-locking plate 25 is against the slot 233 of the self-locking gear 23. Since the depth of the recessed slot 233 is less than the depth of the recessed unlocking groove 232, the self-locking plate 25 locks the self-locking gear 23, preventing the self-locking gear 23, the driving shaft 22 and the rotating handle 27 from rotating counterclockwise, thereby keeping the vent window in an open state.
[0034] like Figure 7 As shown, when the rotating handle 27 is shaken counterclockwise to drive the driving shaft 22 and the self-locking gear 23 to rotate counterclockwise by a certain angle, the transmission sprocket 211 and the chain 212 in the vent housing 21 rotate a certain angle with the driving shaft 22, and the pulling rope 16 is driven by the chain 212 to move, so that the greenhouse film 14 moves to close the vent window. At this time, the tooth portion of the self-locking gear 23 pushes the other end of the self-locking plate 25 to disengage from the unlocking groove 232 and swing to the left, so that the other end of the self-locking plate 25 is against the slot 233 of the self-locking gear 23. Since the depth of the slot 233 is less than the depth of the unlocking groove 232, the self-locking plate 25 locks the self-locking gear 23, preventing the self-locking gear 23, the driving shaft 22 and the rotating handle 27 from rotating clockwise, thereby keeping the vent window in a closed state.
[0035] The above-mentioned arch shed second-layer insulation device drives the driving shaft 22 and the self-locking gear 23 to rotate a certain angle by shaking the rotating handle 27 of the vent fan clockwise or counterclockwise, thereby opening or closing the vent window; the self-locking plate 25 locks the self-locking gear 23 by abutting against the slot 233, preventing the driving shaft 22 from rotating in the counterclockwise or clockwise direction, and further preventing the driving shaft 22 from deviating from the original rotation position, thereby keeping the opening and closing states of the vent window stable and achieving a better insulation effect.
[0036] Any details not mentioned in the above specific embodiments of the present invention belong to the known technologies in the art and can be implemented with reference to the known technologies.
[0037] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.
Claims
1. A two-layer heat preservation device for an arch shed, comprising an arch shed frame and a ventilator arranged inside the arch shed frame, the ventilator comprising a ventilator housing and a drive shaft, one end of the drive shaft is rotatably connected to the ventilator housing, and the other end of the drive shaft is connected to a rotating handle, characterized in that: The ventilator also includes a two-way self-locking transmission mechanism, which includes a self-locking gear sleeved on the drive shaft, a fixed rod connected and fixed to the ventilator housing, and a self-locking plate with one end rotatably connected to the fixed rod. An unlocking groove and a plurality of clamping grooves are provided on the outer periphery of the self-locking gear. The unlocking groove and each clamping groove are provided between two adjacent tooth portions. The other end of the self-locking plate abuts against the unlocking groove or the clamping groove. The self-locking plate locks the self-locking gear by abutting against the clamping groove.
2. The arch shed two-layer insulation device according to claim 1, characterized in that: A transmission sprocket is arranged in the housing of the blower, a chain is wound around the transmission sprocket, and an axial hole is arranged in the housing of the blower. One end of the driving shaft passes through the axial hole of the housing of the blower and is connected to the center of the transmission sprocket.
3. The arch shed second-layer insulation device according to claim 2 is characterized in that: The driving shaft is a spline shaft, and the self-locking gear is provided with a center hole. The center hole of the self-locking gear is a spline hole that matches the driving shaft. The driving shaft passes through the center hole of the self-locking gear. The unlocking groove and the clamping groove are both recessed toward the center hole, and the depth of the unlocking groove is greater than the depth of the clamping groove.
4. The arch shed second-layer insulation device according to claim 3 is characterized in that: One end of the fixing rod is connected and fixed to the fan housing, one end of the self-locking plate is connected to a connecting tube by welding, and the connecting tube is sleeved on the other end of the fixing rod.
5. The arch shed second-layer insulation device according to claim 4 is characterized in that: A spring is arranged between the fixing rod and the self-locking plate, one end of the spring is connected to the fixing rod by winding, and the other end of the spring is connected to the self-locking plate by winding.
6. The arch shed second-layer insulation device according to claim 5, characterized in that: The fixing rod is a screw rod, on which two nuts are screwed, and the connecting tube clamp is arranged between the two nuts.
7. The arch shed second-layer insulation device according to claim 6, characterized in that: The arch shed frame includes steel wires, multiple columns, multiple arch frames and a crossbeam. The columns and arch frames are arranged along the longitudinal direction of the arch shed frame. The arch frames correspond to the columns one by one and are tied to the top of the columns by ropes. The crossbeam is tied and connected to each arch frame by ropes, and extends along the longitudinal direction of the arch shed frame.
8. The arch shed second-layer insulation device according to claim 7, characterized in that: The arch frame is covered with a thermal insulation plastic film, which is provided with a vent window, and a shed film is arranged at the vent window. Each arch frame is provided with a pulley at the corresponding position below the shed film. A bracket is fixed on each column, and a guide hook is provided on the bracket. The two ends of the chain of the ventilator are connected to the two ends of the pulling rope correspondingly. The pulling rope is connected to the shed film through the bracket, the cross beam and the arch frame in sequence. The pulling rope is laid on the guide hook, bypasses the pulley on the arch frame and rests on the cross beam.